History

Merge remote-tracking branch 'qatar/master'

* qatar/master: dca: Switch dca_sample_rates to avpriv_ prefix; it is used across libs ARM: use =const syntax instead of explicit literal pools ARM: use standard syntax for all LDRD/STRD instructions fft: port FFT/IMDCT 3dnow functions to yasm, and disable on x86-64. dct-test: allow to compile without HAVE_INLINE_ASM. x86/dsputilenc: bury inline asm under HAVE_INLINE_ASM. dca: Move tables used outside of dcadec.c to a separate file. dca: Rename dca.c ---> dcadec.c x86: h264dsp: Remove unused variable ff_pb_3_1 apetag: change a forgotten return to return 0 Conflicts: libavcodec/Makefile libavcodec/dca.c libavcodec/x86/fft_3dn.c libavcodec/x86/fft_3dn2.c libavcodec/x86/fft_mmx.asm

Michael Niedermayer committed 14 years ago

Commit ec7ecb82 parents 4c8fc6a 19cf71622 files · +2648 −2626Browse files

Unified · Split

22 files
  1. libavcodec/Makefile +4 −3
  2. libavcodec/arm/h264cmc_neon.S +2 −2
  3. libavcodec/arm/h264dsp_neon.S +6 −6
  4. libavcodec/arm/mpegvideo_armv5te_s.S +3 −3
  5. libavcodec/arm/simple_idct_arm.S +16 −40
  6. libavcodec/arm/simple_idct_armv5te.S +14 −20
  7. libavcodec/arm/simple_idct_armv6.S +12 −21
  8. libavcodec/arm/simple_idct_neon.S +4 −4
  9. libavcodec/dca.c +5 −2479
  10. libavcodec/dca.h +4 −0
  11. libavcodec/dca_parser.c +1 −2
  12. libavcodec/dcadata.h +0 −6
  13. libavcodec/dcadec.c +2507 −0
  14. libavcodec/dcaenc.c +3 −2
  15. libavcodec/dct-test.c +1 −1
  16. libavcodec/x86/dsputilenc_mmx.c +47 −33
  17. libavcodec/x86/fdct_mmx.c +4 −0
  18. libavcodec/x86/fft.c +2 −0
  19. libavcodec/x86/h264dsp_mmx.c +0 −2
  20. libavcodec/x86/motion_est_mmx.c +6 −0
  21. libavcodec/x86/mpegvideo_mmx.c +6 −0
  22. libavformat/spdifenc.c +1 −2
libavcodec/Makefile+4−3
@@ -134,8 +134,8 @@ OBJS-$(CONFIG_CLJR_ENCODER) += cljr.o · 133 unmodified lines
134OBJS-$(CONFIG_COOK_DECODER) += cook.o134OBJS-$(CONFIG_COOK_DECODER) += cook.o
135OBJS-$(CONFIG_CSCD_DECODER) += cscd.o135OBJS-$(CONFIG_CSCD_DECODER) += cscd.o
136OBJS-$(CONFIG_CYUV_DECODER) += cyuv.o136OBJS-$(CONFIG_CYUV_DECODER) += cyuv.o
137OBJS-$(CONFIG_DCA_DECODER) += dca.o synth_filter.o dcadsp.o \137OBJS-$(CONFIG_DCA_DECODER) += dcadec.o dca.o dcadsp.o \
138 dca_parser.o138 dca_parser.o synth_filter.o
139OBJS-$(CONFIG_DCA_ENCODER) += dcaenc.o139OBJS-$(CONFIG_DCA_ENCODER) += dcaenc.o
140OBJS-$(CONFIG_DIRAC_DECODER) += diracdec.o dirac.o diracdsp.o \140OBJS-$(CONFIG_DIRAC_DECODER) += diracdec.o dirac.o diracdsp.o \
141 dirac_arith.o mpeg12data.o dwt.o141 dirac_arith.o mpeg12data.o dwt.o
@@ -660,6 +660,7 @@ OBJS-$(CONFIG_OGG_MUXER) += xiph.o flac.o flacdata.o \ · 518 unmodified lines
660 vorbis_data.o660 vorbis_data.o
661OBJS-$(CONFIG_RTP_MUXER) += mpeg4audio.o mpegvideo.o xiph.o661OBJS-$(CONFIG_RTP_MUXER) += mpeg4audio.o mpegvideo.o xiph.o
662OBJS-$(CONFIG_SPDIF_DEMUXER) += aacadtsdec.o mpeg4audio.o662OBJS-$(CONFIG_SPDIF_DEMUXER) += aacadtsdec.o mpeg4audio.o
663OBJS-$(CONFIG_SPDIF_MUXER) += dca.o
663OBJS-$(CONFIG_WEBM_MUXER) += mpeg4audio.o mpegaudiodata.o \664OBJS-$(CONFIG_WEBM_MUXER) += mpeg4audio.o mpegaudiodata.o \
664 xiph.o flac.o flacdata.o \665 xiph.o flac.o flacdata.o \
665 vorbis_data.o666 vorbis_data.o
@@ -716,7 +717,7 @@ OBJS-$(CONFIG_AC3_PARSER) += ac3_parser.o ac3tab.o \ · 50 unmodified lines
716OBJS-$(CONFIG_ADX_PARSER) += adx_parser.o adx.o717OBJS-$(CONFIG_ADX_PARSER) += adx_parser.o adx.o
717OBJS-$(CONFIG_CAVSVIDEO_PARSER) += cavs_parser.o718OBJS-$(CONFIG_CAVSVIDEO_PARSER) += cavs_parser.o
718OBJS-$(CONFIG_COOK_PARSER) += cook_parser.o719OBJS-$(CONFIG_COOK_PARSER) += cook_parser.o
719OBJS-$(CONFIG_DCA_PARSER) += dca_parser.o720OBJS-$(CONFIG_DCA_PARSER) += dca_parser.o dca.o
720OBJS-$(CONFIG_DIRAC_PARSER) += dirac_parser.o721OBJS-$(CONFIG_DIRAC_PARSER) += dirac_parser.o
721OBJS-$(CONFIG_DNXHD_PARSER) += dnxhd_parser.o722OBJS-$(CONFIG_DNXHD_PARSER) += dnxhd_parser.o
722OBJS-$(CONFIG_DVBSUB_PARSER) += dvbsub_parser.o723OBJS-$(CONFIG_DVBSUB_PARSER) += dvbsub_parser.o
libavcodec/arm/h264cmc_neon.S+2−2
@@ -24,7 +24,7 @@ · 23 unmodified lines
24.macro h264_chroma_mc8 type, codec=h26424.macro h264_chroma_mc8 type, codec=h264
25function ff_\type\()_\codec\()_chroma_mc8_neon, export=125function ff_\type\()_\codec\()_chroma_mc8_neon, export=1
26 push {r4-r7, lr}26 push {r4-r7, lr}
27 ldrd r4, [sp, #20]27 ldrd r4, r5, [sp, #20]
28 .ifc \type,avg28 .ifc \type,avg
29 mov lr, r029 mov lr, r0
30 .endif30 .endif
@@ -182,7 +182,7 @@ endfunc · 151 unmodified lines
182.macro h264_chroma_mc4 type, codec=h264182.macro h264_chroma_mc4 type, codec=h264
183function ff_\type\()_\codec\()_chroma_mc4_neon, export=1183function ff_\type\()_\codec\()_chroma_mc4_neon, export=1
184 push {r4-r7, lr}184 push {r4-r7, lr}
185 ldrd r4, [sp, #20]185 ldrd r4, r5, [sp, #20]
186 .ifc \type,avg186 .ifc \type,avg
187 mov lr, r0187 mov lr, r0
188 .endif188 .endif
libavcodec/arm/h264dsp_neon.S+6−6
@@ -886,7 +886,7 @@ T mov sp, r0 · 885 unmodified lines
886 mov r12, #8886 mov r12, #8
887 vpush {d8-d15}887 vpush {d8-d15}
888 bl put_h264_qpel8_h_lowpass_neon888 bl put_h264_qpel8_h_lowpass_neon
889 ldrd r0, [r11], #8889 ldrd r0, r1, [r11], #8
890 mov r3, r2890 mov r3, r2
891 add r12, sp, #64891 add r12, sp, #64
892 sub r1, r1, r2, lsl #1892 sub r1, r1, r2, lsl #1
@@ -913,7 +913,7 @@ T mov sp, r0 · 20 unmodified lines
913 vpush {d8-d15}913 vpush {d8-d15}
914 bl put_h264_qpel8_h_lowpass_neon914 bl put_h264_qpel8_h_lowpass_neon
915 mov r4, r0915 mov r4, r0
916 ldrd r0, [r11], #8916 ldrd r0, r1, [r11], #8
917 sub r1, r1, r2, lsl #1917 sub r1, r1, r2, lsl #1
918 sub r1, r1, #2918 sub r1, r1, #2
919 mov r3, r2919 mov r3, r2
@@ -958,7 +958,7 @@ T mov sp, r0 · 38 unmodified lines
958 vpush {d8-d15}958 vpush {d8-d15}
959 bl put_h264_qpel8_v_lowpass_neon959 bl put_h264_qpel8_v_lowpass_neon
960 mov r4, r0960 mov r4, r0
961 ldrd r0, [r11], #8961 ldrd r0, r1, [r11], #8
962 sub r1, r1, r3, lsl #1962 sub r1, r1, r3, lsl #1
963 sub r1, r1, #2963 sub r1, r1, #2
964 sub r2, r4, #64964 sub r2, r4, #64
@@ -1071,7 +1071,7 @@ T mov sp, r0 · 106 unmodified lines
1071 mov r3, #161071 mov r3, #16
1072 vpush {d8-d15}1072 vpush {d8-d15}
1073 bl put_h264_qpel16_h_lowpass_neon1073 bl put_h264_qpel16_h_lowpass_neon
1074 ldrd r0, [r11], #81074 ldrd r0, r1, [r11], #8
1075 mov r3, r21075 mov r3, r2
1076 add r12, sp, #641076 add r12, sp, #64
1077 sub r1, r1, r2, lsl #11077 sub r1, r1, r2, lsl #1
@@ -1096,7 +1096,7 @@ T mov sp, r0 · 18 unmodified lines
1096 vpush {d8-d15}1096 vpush {d8-d15}
1097 bl put_h264_qpel16_h_lowpass_neon_packed1097 bl put_h264_qpel16_h_lowpass_neon_packed
1098 mov r4, r01098 mov r4, r0
1099 ldrd r0, [r11], #81099 ldrd r0, r1, [r11], #8
1100 sub r1, r1, r2, lsl #11100 sub r1, r1, r2, lsl #1
1101 sub r1, r1, #21101 sub r1, r1, #2
1102 mov r3, r21102 mov r3, r2
@@ -1139,7 +1139,7 @@ T mov sp, r0 · 36 unmodified lines
1139 vpush {d8-d15}1139 vpush {d8-d15}
1140 bl put_h264_qpel16_v_lowpass_neon_packed1140 bl put_h264_qpel16_v_lowpass_neon_packed
1141 mov r4, r01141 mov r4, r0
1142 ldrd r0, [r11], #81142 ldrd r0, r1, [r11], #8
1143 sub r1, r1, r3, lsl #11143 sub r1, r1, r3, lsl #1
1144 sub r1, r1, #21144 sub r1, r1, #2
1145 mov r2, r31145 mov r2, r3
libavcodec/arm/mpegvideo_armv5te_s.S+3−3
@@ -61,9 +61,9 @@ function ff_dct_unquantize_h263_armv5te, export=1 · 60 unmodified lines
61 mov ip, #061 mov ip, #0
62 subs r3, r3, #262 subs r3, r3, #2
63 ble 2f63 ble 2f
64 ldrd r4, [r0, #0]64 ldrd r4, r5, [r0, #0]
651:651:
66 ldrd r6, [r0, #8]66 ldrd r6, r7, [r0, #8]
67 67
68 dequant_t r9, r4, r1, r2, r968 dequant_t r9, r4, r1, r2, r9
69 dequant_t lr, r5, r1, r2, lr69 dequant_t lr, r5, r1, r2, lr
@@ -87,7 +87,7 @@ function ff_dct_unquantize_h263_armv5te, export=1 · 17 unmodified lines
87 87
88 subs r3, r3, #888 subs r3, r3, #8
89 it gt89 it gt
90 ldrdgt r4, [r0, #0] /* load data early to avoid load/use pipeline stall */90 ldrdgt r4, r5, [r0, #0] /* load data early to avoid load/use pipeline stall */
91 bgt 1b91 bgt 1b
92 92
93 adds r3, r3, #293 adds r3, r3, #2
libavcodec/arm/simple_idct_arm.S+16−40
@@ -25,8 +25,7 @@ · 24 unmodified lines
25 25
26#include "libavutil/arm/asm.S"26#include "libavutil/arm/asm.S"
27 27
28/* useful constants for the algorithm, they are save in __constant_ptr__ at */28/* useful constants for the algorithm */
29/* the end of the source code.*/
30#define W1 2272529#define W1 22725
31#define W2 2140730#define W2 21407
32#define W3 1926631#define W3 19266
@@ -36,16 +35,6 @@ · 3 unmodified lines
36#define W7 452035#define W7 4520
37#define MASK_MSHW 0xFFFF000036#define MASK_MSHW 0xFFFF0000
38 37
39/* offsets of the constants in the vector */
40#define offW1 0
41#define offW2 4
42#define offW3 8
43#define offW4 12
44#define offW5 16
45#define offW6 20
46#define offW7 24
47#define offMASK_MSHW 28
48
49#define ROW_SHIFT 1138#define ROW_SHIFT 11
50#define ROW_SHIFT2MSHW (16-11)39#define ROW_SHIFT2MSHW (16-11)
51#define COL_SHIFT 2040#define COL_SHIFT 20
@@ -63,7 +52,6 @@ function ff_simple_idct_arm, export=1 · 11 unmodified lines
63 stmfd sp!, {r4-r11, r14} @ R14 is also called LR52 stmfd sp!, {r4-r11, r14} @ R14 is also called LR
64 @@ at this point, R0=block, other registers are free.53 @@ at this point, R0=block, other registers are free.
65 add r14, r0, #112 @ R14=&block[8*7], better start from the last row, and decrease the value until row=0, i.e. R12=block.54 add r14, r0, #112 @ R14=&block[8*7], better start from the last row, and decrease the value until row=0, i.e. R12=block.
66 adr r12, __constant_ptr__ @ R12=__constant_ptr__, the vector containing the constants, probably not necessary to reserve a register for it
67 @@ add 2 temporary variables in the stack: R0 and R1455 @@ add 2 temporary variables in the stack: R0 and R14
68 sub sp, sp, #8 @ allow 2 local variables56 sub sp, sp, #8 @ allow 2 local variables
69 str r0, [sp, #0] @ save block in sp[0]57 str r0, [sp, #0] @ save block in sp[0]
@@ -109,13 +97,13 @@ __b_evaluation: · 39 unmodified lines
109 @@ MAC16(b1, -W7, row[3]);97 @@ MAC16(b1, -W7, row[3]);
110 @@ MAC16(b2, -W1, row[3]);98 @@ MAC16(b2, -W1, row[3]);
111 @@ MAC16(b3, -W5, row[3]);99 @@ MAC16(b3, -W5, row[3]);
112 ldr r8, [r12, #offW1] @ R8=W1100 ldr r8, =W1 @ R8=W1
113 mov r2, r2, asr #16 @ R2=ROWr16[3]101 mov r2, r2, asr #16 @ R2=ROWr16[3]
114 mul r0, r8, r7 @ R0=W1*ROWr16[1]=b0 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)102 mul r0, r8, r7 @ R0=W1*ROWr16[1]=b0 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)
115 ldr r9, [r12, #offW3] @ R9=W3103 ldr r9, =W3 @ R9=W3
116 ldr r10, [r12, #offW5] @ R10=W5104 ldr r10, =W5 @ R10=W5
117 mul r1, r9, r7 @ R1=W3*ROWr16[1]=b1 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)105 mul r1, r9, r7 @ R1=W3*ROWr16[1]=b1 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)
118 ldr r11, [r12, #offW7] @ R11=W7106 ldr r11, =W7 @ R11=W7
119 mul r5, r10, r7 @ R5=W5*ROWr16[1]=b2 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)107 mul r5, r10, r7 @ R5=W5*ROWr16[1]=b2 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)
120 mul r7, r11, r7 @ R7=W7*ROWr16[1]=b3 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)108 mul r7, r11, r7 @ R7=W7*ROWr16[1]=b3 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)
121 teq r2, #0 @ if null avoid muls109 teq r2, #0 @ if null avoid muls
@@ -177,14 +165,14 @@ __a_evaluation: · 55 unmodified lines
177 @@ a2 = a0 - W6 * row[2];165 @@ a2 = a0 - W6 * row[2];
178 @@ a3 = a0 - W2 * row[2];166 @@ a3 = a0 - W2 * row[2];
179 @@ a0 = a0 + W2 * row[2];167 @@ a0 = a0 + W2 * row[2];
180 ldr r9, [r12, #offW4] @ R9=W4168 ldr r9, =W4 @ R9=W4
181 mul r6, r9, r6 @ R6=W4*ROWr16[0]169 mul r6, r9, r6 @ R6=W4*ROWr16[0]
182 ldr r10, [r12, #offW6] @ R10=W6170 ldr r10, =W6 @ R10=W6
183 ldrsh r4, [r14, #4] @ R4=ROWr16[2] (a3 not defined yet)171 ldrsh r4, [r14, #4] @ R4=ROWr16[2] (a3 not defined yet)
184 add r6, r6, #ROW_SHIFTED_1 @ R6=W4*ROWr16[0] + 1<<(ROW_SHIFT-1) (a0)172 add r6, r6, #ROW_SHIFTED_1 @ R6=W4*ROWr16[0] + 1<<(ROW_SHIFT-1) (a0)
185 173
186 mul r11, r10, r4 @ R11=W6*ROWr16[2]174 mul r11, r10, r4 @ R11=W6*ROWr16[2]
187 ldr r8, [r12, #offW2] @ R8=W2175 ldr r8, =W2 @ R8=W2
188 sub r3, r6, r11 @ R3=a0-W6*ROWr16[2] (a2)176 sub r3, r6, r11 @ R3=a0-W6*ROWr16[2] (a2)
189 @@ temp = ((uint32_t*)row)[2] | ((uint32_t*)row)[3];177 @@ temp = ((uint32_t*)row)[2] | ((uint32_t*)row)[3];
190 @@ if (temp != 0) {}178 @@ if (temp != 0) {}
@@ -248,7 +236,7 @@ __end_a_evaluation: · 57 unmodified lines
248 add r9, r2, r1 @ R9=a1+b1236 add r9, r2, r1 @ R9=a1+b1
249 @@ put 2 16 bits half-words in a 32bits word237 @@ put 2 16 bits half-words in a 32bits word
250 @@ ROWr32[0]=ROWr16[0] | (ROWr16[1]<<16) (only Little Endian compliant then!!!)238 @@ ROWr32[0]=ROWr16[0] | (ROWr16[1]<<16) (only Little Endian compliant then!!!)
251 ldr r10, [r12, #offMASK_MSHW] @ R10=0xFFFF0000239 ldr r10, =MASK_MSHW @ R10=0xFFFF0000
252 and r9, r10, r9, lsl #ROW_SHIFT2MSHW @ R9=0xFFFF0000 & ((a1+b1)<<5)240 and r9, r10, r9, lsl #ROW_SHIFT2MSHW @ R9=0xFFFF0000 & ((a1+b1)<<5)
253 mvn r11, r10 @ R11= NOT R10= 0x0000FFFF241 mvn r11, r10 @ R11= NOT R10= 0x0000FFFF
254 and r8, r11, r8, asr #ROW_SHIFT @ R8=0x0000FFFF & ((a0+b0)>>11)242 and r8, r11, r8, asr #ROW_SHIFT @ R8=0x0000FFFF & ((a0+b0)>>11)
@@ -319,13 +307,13 @@ __b_evaluation2: · 64 unmodified lines
319 @@ MAC16(b1, -W7, col[8x3]);307 @@ MAC16(b1, -W7, col[8x3]);
320 @@ MAC16(b2, -W1, col[8x3]);308 @@ MAC16(b2, -W1, col[8x3]);
321 @@ MAC16(b3, -W5, col[8x3]);309 @@ MAC16(b3, -W5, col[8x3]);
322 ldr r8, [r12, #offW1] @ R8=W1310 ldr r8, =W1 @ R8=W1
323 ldrsh r7, [r14, #16]311 ldrsh r7, [r14, #16]
324 mul r0, r8, r7 @ R0=W1*ROWr16[1]=b0 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)312 mul r0, r8, r7 @ R0=W1*ROWr16[1]=b0 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)
325 ldr r9, [r12, #offW3] @ R9=W3313 ldr r9, =W3 @ R9=W3
326 ldr r10, [r12, #offW5] @ R10=W5314 ldr r10, =W5 @ R10=W5
327 mul r1, r9, r7 @ R1=W3*ROWr16[1]=b1 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)315 mul r1, r9, r7 @ R1=W3*ROWr16[1]=b1 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)
328 ldr r11, [r12, #offW7] @ R11=W7316 ldr r11, =W7 @ R11=W7
329 mul r5, r10, r7 @ R5=W5*ROWr16[1]=b2 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)317 mul r5, r10, r7 @ R5=W5*ROWr16[1]=b2 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)
330 ldrsh r2, [r14, #48]318 ldrsh r2, [r14, #48]
331 mul r7, r11, r7 @ R7=W7*ROWr16[1]=b3 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)319 mul r7, r11, r7 @ R7=W7*ROWr16[1]=b3 (ROWr16[1] must be the second arg, to have the possibility to save 1 cycle)
@@ -381,13 +369,13 @@ __a_evaluation2: · 49 unmodified lines
381 @@ a3 = a0 - W2 * row[2];369 @@ a3 = a0 - W2 * row[2];
382 @@ a0 = a0 + W2 * row[2];370 @@ a0 = a0 + W2 * row[2];
383 ldrsh r6, [r14, #0]371 ldrsh r6, [r14, #0]
384 ldr r9, [r12, #offW4] @ R9=W4372 ldr r9, =W4 @ R9=W4
385 mul r6, r9, r6 @ R6=W4*ROWr16[0]373 mul r6, r9, r6 @ R6=W4*ROWr16[0]
386 ldr r10, [r12, #offW6] @ R10=W6374 ldr r10, =W6 @ R10=W6
387 ldrsh r4, [r14, #32] @ R4=ROWr16[2] (a3 not defined yet)375 ldrsh r4, [r14, #32] @ R4=ROWr16[2] (a3 not defined yet)
388 add r6, r6, #COL_SHIFTED_1 @ R6=W4*ROWr16[0] + 1<<(COL_SHIFT-1) (a0)376 add r6, r6, #COL_SHIFTED_1 @ R6=W4*ROWr16[0] + 1<<(COL_SHIFT-1) (a0)
389 mul r11, r10, r4 @ R11=W6*ROWr16[2]377 mul r11, r10, r4 @ R11=W6*ROWr16[2]
390 ldr r8, [r12, #offW2] @ R8=W2378 ldr r8, =W2 @ R8=W2
391 add r2, r6, r11 @ R2=a0+W6*ROWr16[2] (a1)379 add r2, r6, r11 @ R2=a0+W6*ROWr16[2] (a1)
392 sub r3, r6, r11 @ R3=a0-W6*ROWr16[2] (a2)380 sub r3, r6, r11 @ R3=a0-W6*ROWr16[2] (a2)
393 mul r11, r8, r4 @ R11=W2*ROWr16[2]381 mul r11, r8, r4 @ R11=W2*ROWr16[2]
@@ -489,15 +477,3 @@ __end_bef_a_evaluation: · 95 unmodified lines
489 sub r4, r6, r11 @ R4=a0-W2*ROWr16[2] (a3)477 sub r4, r6, r11 @ R4=a0-W2*ROWr16[2] (a3)
490 add r6, r6, r11 @ R6=a0+W2*ROWr16[2] (a0)478 add r6, r6, r11 @ R6=a0+W2*ROWr16[2] (a0)
491 bal __end_a_evaluation479 bal __end_a_evaluation
492
493
494 .align
495__constant_ptr__: @@ see #defines at the beginning of the source code for values.
496 .word W1
497 .word W2
498 .word W3
499 .word W4
500 .word W5
501 .word W6
502 .word W7
503 .word MASK_MSHW
libavcodec/arm/simple_idct_armv5te.S+14−20
@@ -37,17 +37,11 @@ · 36 unmodified lines
37#define W26 (W2 | (W6 << 16))37#define W26 (W2 | (W6 << 16))
38#define W57 (W5 | (W7 << 16))38#define W57 (W5 | (W7 << 16))
39 39
40 .text
41 .align
42w13: .long W13
43w26: .long W26
44w57: .long W57
45
46function idct_row_armv5te40function idct_row_armv5te
47 str lr, [sp, #-4]!41 str lr, [sp, #-4]!
48 42
49 ldrd v1, [a1, #8]43 ldrd v1, v2, [a1, #8]
50 ldrd a3, [a1] /* a3 = row[1:0], a4 = row[3:2] */44 ldrd a3, a4, [a1] /* a3 = row[1:0], a4 = row[3:2] */
51 orrs v1, v1, v245 orrs v1, v1, v2
52 itt eq46 itt eq
53 cmpeq v1, a447 cmpeq v1, a4
@@ -58,7 +52,7 @@ function idct_row_armv5te · 4 unmodified lines
58 mov ip, #1638452 mov ip, #16384
59 sub ip, ip, #1 /* ip = W4 */53 sub ip, ip, #1 /* ip = W4 */
60 smlabb v1, ip, a3, v1 /* v1 = W4*row[0]+(1<<(RS-1)) */54 smlabb v1, ip, a3, v1 /* v1 = W4*row[0]+(1<<(RS-1)) */
61 ldr ip, w26 /* ip = W2 | (W6 << 16) */55 ldr ip, =W26 /* ip = W2 | (W6 << 16) */
62 smultb a2, ip, a456 smultb a2, ip, a4
63 smulbb lr, ip, a457 smulbb lr, ip, a4
64 add v2, v1, a258 add v2, v1, a2
@@ -66,8 +60,8 @@ function idct_row_armv5te · 1 unmodified line
66 sub v4, v1, lr60 sub v4, v1, lr
67 add v1, v1, lr61 add v1, v1, lr
68 62
69 ldr ip, w13 /* ip = W1 | (W3 << 16) */63 ldr ip, =W13 /* ip = W1 | (W3 << 16) */
70 ldr lr, w57 /* lr = W5 | (W7 << 16) */64 ldr lr, =W57 /* lr = W5 | (W7 << 16) */
71 smulbt v5, ip, a365 smulbt v5, ip, a3
72 smultt v6, lr, a466 smultt v6, lr, a4
73 smlatt v5, ip, a4, v567 smlatt v5, ip, a4, v5
@@ -78,7 +72,7 @@ function idct_row_armv5te · 4 unmodified lines
78 smultt fp, lr, a372 smultt fp, lr, a3
79 sub v7, v7, a273 sub v7, v7, a2
80 smulbt a2, lr, a474 smulbt a2, lr, a4
81 ldrd a3, [a1, #8] /* a3=row[5:4] a4=row[7:6] */75 ldrd a3, a4, [a1, #8] /* a3=row[5:4] a4=row[7:6] */
82 sub fp, fp, a276 sub fp, fp, a2
83 77
84 orrs a2, a3, a478 orrs a2, a3, a4
@@ -94,7 +88,7 @@ function idct_row_armv5te · 9 unmodified lines
94 smlatt v7, ip, a4, v788 smlatt v7, ip, a4, v7
95 sub fp, fp, a289 sub fp, fp, a2
96 90
97 ldr ip, w26 /* ip = W2 | (W6 << 16) */91 ldr ip, =W26 /* ip = W2 | (W6 << 16) */
98 mov a2, #1638492 mov a2, #16384
99 sub a2, a2, #1 /* a2 = W4 */93 sub a2, a2, #1 /* a2 = W4 */
100 smulbb a2, a2, a3 /* a2 = W4*row[4] */94 smulbb a2, a2, a3 /* a2 = W4*row[4] */
@@ -121,7 +115,7 @@ function idct_row_armv5te · 20 unmodified lines
121 add a2, v4, fp115 add a2, v4, fp
122 mov a2, a2, lsr #11116 mov a2, a2, lsr #11
123 add a4, a4, a2, lsl #16117 add a4, a4, a2, lsl #16
124 strd a3, [a1]118 strd a3, a4, [a1]
125 119
126 sub a2, v4, fp120 sub a2, v4, fp
127 mov a3, a2, lsr #11121 mov a3, a2, lsr #11
@@ -135,7 +129,7 @@ function idct_row_armv5te · 7 unmodified lines
135 sub a2, v1, v5129 sub a2, v1, v5
136 mov a2, a2, lsr #11130 mov a2, a2, lsr #11
137 add a4, a4, a2, lsl #16131 add a4, a4, a2, lsl #16
138 strd a3, [a1, #8]132 strd a3, a4, [a1, #8]
139 133
140 ldr pc, [sp], #4134 ldr pc, [sp], #4
141 135
@@ -144,8 +138,8 @@ row_dc_only: · 2 unmodified lines
144 bic a3, a3, #0xe000138 bic a3, a3, #0xe000
145 mov a3, a3, lsl #3139 mov a3, a3, lsl #3
146 mov a4, a3140 mov a4, a3
147 strd a3, [a1]141 strd a3, a4, [a1]
148 strd a3, [a1, #8]142 strd a3, a4, [a1, #8]
149 143
150 ldr pc, [sp], #4144 ldr pc, [sp], #4
151endfunc145endfunc
@@ -178,7 +172,7 @@ endfunc · 26 unmodified lines
178 sub v4, v2, a3172 sub v4, v2, a3
179 sub v6, v2, a3173 sub v6, v2, a3
180 add fp, v2, a3174 add fp, v2, a3
181 ldr ip, w26175 ldr ip, =W26
182 ldr a4, [a1, #(16*2)]176 ldr a4, [a1, #(16*2)]
183 add v2, v2, a3177 add v2, v2, a3
184 178
@@ -211,9 +205,9 @@ endfunc · 26 unmodified lines
211 205
212 stmfd sp!, {v1, v2, v3, v4, v5, v6, v7, fp}206 stmfd sp!, {v1, v2, v3, v4, v5, v6, v7, fp}
213 207
214 ldr ip, w13208 ldr ip, =W13
215 ldr a4, [a1, #(16*1)]209 ldr a4, [a1, #(16*1)]
216 ldr lr, w57210 ldr lr, =W57
217 smulbb v1, ip, a4211 smulbb v1, ip, a4
218 smultb v3, ip, a4212 smultb v3, ip, a4
219 smulbb v5, lr, a4213 smulbb v5, lr, a4
libavcodec/arm/simple_idct_armv6.S+12−21
@@ -40,15 +40,6 @@ · 39 unmodified lines
40#define W46 (W4 | (W6 << 16))40#define W46 (W4 | (W6 << 16))
41#define W57 (W5 | (W7 << 16))41#define W57 (W5 | (W7 << 16))
42 42
43 .text
44 .align
45w13: .long W13
46w26: .long W26
47w42: .long W42
48w42n: .long W42n
49w46: .long W46
50w57: .long W57
51
52/*43/*
53 Compute partial IDCT of single row.44 Compute partial IDCT of single row.
54 shift = left-shift amount45 shift = left-shift amount
@@ -60,12 +51,12 @@ w57: .long W57 · 5 unmodified lines
60 Output in registers r4--r1151 Output in registers r4--r11
61*/52*/
62 .macro idct_row shift53 .macro idct_row shift
63 ldr lr, w46 /* lr = W4 | (W6 << 16) */54 ldr lr, =W46 /* lr = W4 | (W6 << 16) */
64 mov r1, #(1<<(\shift-1))55 mov r1, #(1<<(\shift-1))
65 smlad r4, r2, ip, r156 smlad r4, r2, ip, r1
66 smlsd r7, r2, ip, r157 smlsd r7, r2, ip, r1
67 ldr ip, w13 /* ip = W1 | (W3 << 16) */58 ldr ip, =W13 /* ip = W1 | (W3 << 16) */
68 ldr r10,w57 /* r10 = W5 | (W7 << 16) */59 ldr r10,=W57 /* r10 = W5 | (W7 << 16) */
69 smlad r5, r2, lr, r160 smlad r5, r2, lr, r1
70 smlsd r6, r2, lr, r161 smlsd r6, r2, lr, r1
71 62
@@ -78,11 +69,11 @@ w57: .long W57 · 6 unmodified lines
78 smlad r8, lr, r10,r8 /* B0 += W5*row[5] + W7*row[7] */69 smlad r8, lr, r10,r8 /* B0 += W5*row[5] + W7*row[7] */
79 smusdx r10,r3, r1 /* r10 = B2 = W5*row[1] - W1*row[3] */70 smusdx r10,r3, r1 /* r10 = B2 = W5*row[1] - W1*row[3] */
80 71
81 ldr r3, w42n /* r3 = -W4 | (-W2 << 16) */72 ldr r3, =W42n /* r3 = -W4 | (-W2 << 16) */
82 smlad r10,lr, r2, r10 /* B2 += W7*row[5] + W3*row[7] */73 smlad r10,lr, r2, r10 /* B2 += W7*row[5] + W3*row[7] */
83 ldr r2, [r0, #4] /* r2 = row[6,4] */74 ldr r2, [r0, #4] /* r2 = row[6,4] */
84 smlsdx r11,lr, ip, r11 /* B3 += W3*row[5] - W1*row[7] */75 smlsdx r11,lr, ip, r11 /* B3 += W3*row[5] - W1*row[7] */
85 ldr ip, w46 /* ip = W4 | (W6 << 16) */76 ldr ip, =W46 /* ip = W4 | (W6 << 16) */
86 smlad r9, lr, r1, r9 /* B1 -= W1*row[5] + W5*row[7] */77 smlad r9, lr, r1, r9 /* B1 -= W1*row[5] + W5*row[7] */
87 78
88 smlad r5, r2, r3, r5 /* A1 += -W4*row[4] - W2*row[6] */79 smlad r5, r2, r3, r5 /* A1 += -W4*row[4] - W2*row[6] */
@@ -101,12 +92,12 @@ w57: .long W57 · 12 unmodified lines
101 Output in registers r4--r1192 Output in registers r4--r11
102*/93*/
103 .macro idct_row4 shift94 .macro idct_row4 shift
104 ldr lr, w46 /* lr = W4 | (W6 << 16) */95 ldr lr, =W46 /* lr = W4 | (W6 << 16) */
105 ldr r10,w57 /* r10 = W5 | (W7 << 16) */96 ldr r10,=W57 /* r10 = W5 | (W7 << 16) */
106 mov r1, #(1<<(\shift-1))97 mov r1, #(1<<(\shift-1))
107 smlad r4, r2, ip, r198 smlad r4, r2, ip, r1
108 smlsd r7, r2, ip, r199 smlsd r7, r2, ip, r1
109 ldr ip, w13 /* ip = W1 | (W3 << 16) */100 ldr ip, =W13 /* ip = W1 | (W3 << 16) */
110 smlad r5, r2, lr, r1101 smlad r5, r2, lr, r1
111 smlsd r6, r2, lr, r1102 smlsd r6, r2, lr, r1
112 smusdx r11,r3, r10 /* r11 = B3 = W7*row[1] - W5*row[3] */103 smusdx r11,r3, r10 /* r11 = B3 = W7*row[1] - W5*row[3] */
@@ -205,7 +196,7 @@ function idct_row_armv6 · 92 unmodified lines
205 cmpeq lr, r2, lsr #16196 cmpeq lr, r2, lsr #16
206 beq 1f197 beq 1f
207 push {r1}198 push {r1}
208 ldr ip, w42 /* ip = W4 | (W2 << 16) */199 ldr ip, =W42 /* ip = W4 | (W2 << 16) */
209 cmp lr, #0200 cmp lr, #0
210 beq 2f201 beq 2f
211 202
@@ -249,7 +240,7 @@ function idct_col_armv6 · 37 unmodified lines
249 push {r1, lr}240 push {r1, lr}
250 241
251 ldr r2, [r0] /* r2 = row[2,0] */242 ldr r2, [r0] /* r2 = row[2,0] */
252 ldr ip, w42 /* ip = W4 | (W2 << 16) */243 ldr ip, =W42 /* ip = W4 | (W2 << 16) */
253 ldr r3, [r0, #8] /* r3 = row[3,1] */244 ldr r3, [r0, #8] /* r3 = row[3,1] */
254 idct_row COL_SHIFT245 idct_row COL_SHIFT
255 pop {r1}246 pop {r1}
@@ -277,7 +268,7 @@ function idct_col_put_armv6 · 21 unmodified lines
277 push {r1, r2, lr}268 push {r1, r2, lr}
278 269
279 ldr r2, [r0] /* r2 = row[2,0] */270 ldr r2, [r0] /* r2 = row[2,0] */
280 ldr ip, w42 /* ip = W4 | (W2 << 16) */271 ldr ip, =W42 /* ip = W4 | (W2 << 16) */
281 ldr r3, [r0, #8] /* r3 = row[3,1] */272 ldr r3, [r0, #8] /* r3 = row[3,1] */
282 idct_row COL_SHIFT273 idct_row COL_SHIFT
283 pop {r1, r2}274 pop {r1, r2}
@@ -307,7 +298,7 @@ function idct_col_add_armv6 · 23 unmodified lines
307 push {r1, r2, lr}298 push {r1, r2, lr}
308 299
309 ldr r2, [r0] /* r2 = row[2,0] */300 ldr r2, [r0] /* r2 = row[2,0] */
310 ldr ip, w42 /* ip = W4 | (W2 << 16) */301 ldr ip, =W42 /* ip = W4 | (W2 << 16) */
311 ldr r3, [r0, #8] /* r3 = row[3,1] */302 ldr r3, [r0, #8] /* r3 = row[3,1] */
312 idct_row COL_SHIFT303 idct_row COL_SHIFT
313 pop {r1, r2}304 pop {r1, r2}
libavcodec/arm/simple_idct_neon.S+4−4
@@ -159,8 +159,8 @@ function idct_col4_neon · 158 unmodified lines
159 vmull.s16 q15, d30, w4 /* q15 = W4*(col[0]+(1<<COL_SHIFT-1)/W4)*/159 vmull.s16 q15, d30, w4 /* q15 = W4*(col[0]+(1<<COL_SHIFT-1)/W4)*/
160 vld1.64 {d8}, [r2,:64], ip /* d5 = col[3] */160 vld1.64 {d8}, [r2,:64], ip /* d5 = col[3] */
161 161
162 ldrd r4, [r2]162 ldrd r4, r5, [r2]
163 ldrd r6, [r2, #16]163 ldrd r6, r7, [r2, #16]
164 orrs r4, r4, r5164 orrs r4, r4, r5
165 165
166 idct_col4_top166 idct_col4_top
@@ -176,7 +176,7 @@ function idct_col4_neon · 9 unmodified lines
176 vadd.i32 q14, q14, q7176 vadd.i32 q14, q14, q7
177 177
1781: orrs r6, r6, r71781: orrs r6, r6, r7
179 ldrd r4, [r2, #16]179 ldrd r4, r5, [r2, #16]
180 it eq180 it eq
181 addeq r2, r2, #16181 addeq r2, r2, #16
182 beq 2f182 beq 2f
@@ -188,7 +188,7 @@ function idct_col4_neon · 5 unmodified lines
188 vmlal.s16 q6, d5, w3 /* q6 += W3 * col[5] */188 vmlal.s16 q6, d5, w3 /* q6 += W3 * col[5] */
189 189
1902: orrs r4, r4, r51902: orrs r4, r4, r5
191 ldrd r4, [r2, #16]191 ldrd r4, r5, [r2, #16]
192 it eq192 it eq
193 addeq r2, r2, #16193 addeq r2, r2, #16
194 beq 3f194 beq 3f
libavcodec/dca.c+5−2479
@@ -1,5 +1,5 @@
1/*1/*
2 * DCA compatible decoder2 * DCA compatible decoder data
3 * Copyright (C) 2004 Gildas Bazin3 * Copyright (C) 2004 Gildas Bazin
4 * Copyright (C) 2004 Benjamin Zores4 * Copyright (C) 2004 Benjamin Zores
5 * Copyright (C) 2006 Benjamin Larsson5 * Copyright (C) 2006 Benjamin Larsson
@@ -22,2486 +22,12 @@ · 16 unmodified lines
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 */23 */
24 24
25#include <math.h>25#include <stdint.h>
26#include <stddef.h>
27#include <stdio.h>
28 26
29#include "libavutil/common.h"
30#include "libavutil/float_dsp.h"
31#include "libavutil/intmath.h"
32#include "libavutil/intreadwrite.h"
33#include "libavutil/mathematics.h"
34#include "libavutil/audioconvert.h"
35#include "avcodec.h"
36#include "dsputil.h"
37#include "fft.h"
38#include "get_bits.h"
39#include "put_bits.h"
40#include "dcadata.h"
41#include "dcahuff.h"
42#include "dca.h"27#include "dca.h"
43#include "dca_parser.h"
44#include "synth_filter.h"
45#include "dcadsp.h"
46#include "fmtconvert.h"
47 28
48#if ARCH_ARM29const uint32_t avpriv_dca_sample_rates[16] =
49# include "arm/dca.h"
50#endif
51
52//#define TRACE
53
54#define DCA_PRIM_CHANNELS_MAX (7)
55#define DCA_SUBBANDS (64)
56#define DCA_ABITS_MAX (32) /* Should be 28 */
57#define DCA_SUBSUBFRAMES_MAX (4)
58#define DCA_SUBFRAMES_MAX (16)
59#define DCA_BLOCKS_MAX (16)
60#define DCA_LFE_MAX (3)
61#define DCA_CHSETS_MAX (4)
62#define DCA_CHSET_CHANS_MAX (8)
63
64enum DCAMode {
65 DCA_MONO = 0,
66 DCA_CHANNEL,
67 DCA_STEREO,
68 DCA_STEREO_SUMDIFF,
69 DCA_STEREO_TOTAL,
70 DCA_3F,
71 DCA_2F1R,
72 DCA_3F1R,
73 DCA_2F2R,
74 DCA_3F2R,
75 DCA_4F2R
76};
77
78/* these are unconfirmed but should be mostly correct */
79enum DCAExSSSpeakerMask {
80 DCA_EXSS_FRONT_CENTER = 0x0001,
81 DCA_EXSS_FRONT_LEFT_RIGHT = 0x0002,
82 DCA_EXSS_SIDE_REAR_LEFT_RIGHT = 0x0004,
83 DCA_EXSS_LFE = 0x0008,
84 DCA_EXSS_REAR_CENTER = 0x0010,
85 DCA_EXSS_FRONT_HIGH_LEFT_RIGHT = 0x0020,
86 DCA_EXSS_REAR_LEFT_RIGHT = 0x0040,
87 DCA_EXSS_FRONT_HIGH_CENTER = 0x0080,
88 DCA_EXSS_OVERHEAD = 0x0100,
89 DCA_EXSS_CENTER_LEFT_RIGHT = 0x0200,
90 DCA_EXSS_WIDE_LEFT_RIGHT = 0x0400,
91 DCA_EXSS_SIDE_LEFT_RIGHT = 0x0800,
92 DCA_EXSS_LFE2 = 0x1000,
93 DCA_EXSS_SIDE_HIGH_LEFT_RIGHT = 0x2000,
94 DCA_EXSS_REAR_HIGH_CENTER = 0x4000,
95 DCA_EXSS_REAR_HIGH_LEFT_RIGHT = 0x8000,
96};
97
98enum DCAXxchSpeakerMask {
99 DCA_XXCH_FRONT_CENTER = 0x0000001,
100 DCA_XXCH_FRONT_LEFT = 0x0000002,
101 DCA_XXCH_FRONT_RIGHT = 0x0000004,
102 DCA_XXCH_SIDE_REAR_LEFT = 0x0000008,
103 DCA_XXCH_SIDE_REAR_RIGHT = 0x0000010,
104 DCA_XXCH_LFE1 = 0x0000020,
105 DCA_XXCH_REAR_CENTER = 0x0000040,
106 DCA_XXCH_SURROUND_REAR_LEFT = 0x0000080,
107 DCA_XXCH_SURROUND_REAR_RIGHT = 0x0000100,
108 DCA_XXCH_SIDE_SURROUND_LEFT = 0x0000200,
109 DCA_XXCH_SIDE_SURROUND_RIGHT = 0x0000400,
110 DCA_XXCH_FRONT_CENTER_LEFT = 0x0000800,
111 DCA_XXCH_FRONT_CENTER_RIGHT = 0x0001000,
112 DCA_XXCH_FRONT_HIGH_LEFT = 0x0002000,
113 DCA_XXCH_FRONT_HIGH_CENTER = 0x0004000,
114 DCA_XXCH_FRONT_HIGH_RIGHT = 0x0008000,
115 DCA_XXCH_LFE2 = 0x0010000,
116 DCA_XXCH_SIDE_FRONT_LEFT = 0x0020000,
117 DCA_XXCH_SIDE_FRONT_RIGHT = 0x0040000,
118 DCA_XXCH_OVERHEAD = 0x0080000,
119 DCA_XXCH_SIDE_HIGH_LEFT = 0x0100000,
120 DCA_XXCH_SIDE_HIGH_RIGHT = 0x0200000,
121 DCA_XXCH_REAR_HIGH_CENTER = 0x0400000,
122 DCA_XXCH_REAR_HIGH_LEFT = 0x0800000,
123 DCA_XXCH_REAR_HIGH_RIGHT = 0x1000000,
124 DCA_XXCH_REAR_LOW_CENTER = 0x2000000,
125 DCA_XXCH_REAR_LOW_LEFT = 0x4000000,
126 DCA_XXCH_REAR_LOW_RIGHT = 0x8000000,
127};
128
129static const uint32_t map_xxch_to_native[28] = {
130 AV_CH_FRONT_CENTER,
131 AV_CH_FRONT_LEFT,
132 AV_CH_FRONT_RIGHT,
133 AV_CH_SIDE_LEFT,
134 AV_CH_SIDE_RIGHT,
135 AV_CH_LOW_FREQUENCY,
136 AV_CH_BACK_CENTER,
137 AV_CH_BACK_LEFT,
138 AV_CH_BACK_RIGHT,
139 AV_CH_SIDE_LEFT, /* side surround left -- dup sur side L */
140 AV_CH_SIDE_RIGHT, /* side surround right -- dup sur side R */
141 AV_CH_FRONT_LEFT_OF_CENTER,
142 AV_CH_FRONT_RIGHT_OF_CENTER,
143 AV_CH_TOP_FRONT_LEFT,
144 AV_CH_TOP_FRONT_CENTER,
145 AV_CH_TOP_FRONT_RIGHT,
146 AV_CH_LOW_FREQUENCY, /* lfe2 -- duplicate lfe1 position */
147 AV_CH_FRONT_LEFT_OF_CENTER, /* side front left -- dup front cntr L */
148 AV_CH_FRONT_RIGHT_OF_CENTER,/* side front right -- dup front cntr R */
149 AV_CH_TOP_CENTER, /* overhead */
150 AV_CH_TOP_FRONT_LEFT, /* side high left -- dup */
151 AV_CH_TOP_FRONT_RIGHT, /* side high right -- dup */
152 AV_CH_TOP_BACK_CENTER,
153 AV_CH_TOP_BACK_LEFT,
154 AV_CH_TOP_BACK_RIGHT,
155 AV_CH_BACK_CENTER, /* rear low center -- dup */
156 AV_CH_BACK_LEFT, /* rear low left -- dup */
157 AV_CH_BACK_RIGHT /* read low right -- dup */
158};
159
160enum DCAExtensionMask {
161 DCA_EXT_CORE = 0x001, ///< core in core substream
162 DCA_EXT_XXCH = 0x002, ///< XXCh channels extension in core substream
163 DCA_EXT_X96 = 0x004, ///< 96/24 extension in core substream
164 DCA_EXT_XCH = 0x008, ///< XCh channel extension in core substream
165 DCA_EXT_EXSS_CORE = 0x010, ///< core in ExSS (extension substream)
166 DCA_EXT_EXSS_XBR = 0x020, ///< extended bitrate extension in ExSS
167 DCA_EXT_EXSS_XXCH = 0x040, ///< XXCh channels extension in ExSS
168 DCA_EXT_EXSS_X96 = 0x080, ///< 96/24 extension in ExSS
169 DCA_EXT_EXSS_LBR = 0x100, ///< low bitrate component in ExSS
170 DCA_EXT_EXSS_XLL = 0x200, ///< lossless extension in ExSS
171};
172
173/* -1 are reserved or unknown */
174static const int dca_ext_audio_descr_mask[] = {
175 DCA_EXT_XCH,
176 -1,
177 DCA_EXT_X96,
178 DCA_EXT_XCH | DCA_EXT_X96,
179 -1,
180 -1,
181 DCA_EXT_XXCH,
182 -1,
183};
184
185/* extensions that reside in core substream */
186#define DCA_CORE_EXTS (DCA_EXT_XCH | DCA_EXT_XXCH | DCA_EXT_X96)
187
188/* Tables for mapping dts channel configurations to libavcodec multichannel api.
189 * Some compromises have been made for special configurations. Most configurations
190 * are never used so complete accuracy is not needed.
191 *
192 * L = left, R = right, C = center, S = surround, F = front, R = rear, T = total, OV = overhead.
193 * S -> side, when both rear and back are configured move one of them to the side channel
194 * OV -> center back
195 * All 2 channel configurations -> AV_CH_LAYOUT_STEREO
196 */
197static const uint64_t dca_core_channel_layout[] = {
198 AV_CH_FRONT_CENTER, ///< 1, A
199 AV_CH_LAYOUT_STEREO, ///< 2, A + B (dual mono)
200 AV_CH_LAYOUT_STEREO, ///< 2, L + R (stereo)
201 AV_CH_LAYOUT_STEREO, ///< 2, (L + R) + (L - R) (sum-difference)
202 AV_CH_LAYOUT_STEREO, ///< 2, LT + RT (left and right total)
203 AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER, ///< 3, C + L + R
204 AV_CH_LAYOUT_STEREO | AV_CH_BACK_CENTER, ///< 3, L + R + S
205 AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 4, C + L + R + S
206 AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 4, L + R + SL + SR
207
208 AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_SIDE_LEFT |
209 AV_CH_SIDE_RIGHT, ///< 5, C + L + R + SL + SR
210
211 AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT |
212 AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER, ///< 6, CL + CR + L + R + SL + SR
213
214 AV_CH_LAYOUT_STEREO | AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT |
215 AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 6, C + L + R + LR + RR + OV
216
217 AV_CH_FRONT_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER |
218 AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_BACK_CENTER |
219 AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 6, CF + CR + LF + RF + LR + RR
220
221 AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER |
222 AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO |
223 AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 7, CL + C + CR + L + R + SL + SR
224
225 AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER |
226 AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT |
227 AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 8, CL + CR + L + R + SL1 + SL2 + SR1 + SR2
228
229 AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER |
230 AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO |
231 AV_CH_SIDE_LEFT | AV_CH_BACK_CENTER | AV_CH_SIDE_RIGHT, ///< 8, CL + C + CR + L + R + SL + S + SR
232};
233
234static const int8_t dca_lfe_index[] = {
235 1, 2, 2, 2, 2, 3, 2, 3, 2, 3, 2, 3, 1, 3, 2, 3
236};
237
238static const int8_t dca_channel_reorder_lfe[][9] = {
239 { 0, -1, -1, -1, -1, -1, -1, -1, -1},
240 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
241 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
242 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
243 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
244 { 2, 0, 1, -1, -1, -1, -1, -1, -1},
245 { 0, 1, 3, -1, -1, -1, -1, -1, -1},
246 { 2, 0, 1, 4, -1, -1, -1, -1, -1},
247 { 0, 1, 3, 4, -1, -1, -1, -1, -1},
248 { 2, 0, 1, 4, 5, -1, -1, -1, -1},
249 { 3, 4, 0, 1, 5, 6, -1, -1, -1},
250 { 2, 0, 1, 4, 5, 6, -1, -1, -1},
251 { 0, 6, 4, 5, 2, 3, -1, -1, -1},
252 { 4, 2, 5, 0, 1, 6, 7, -1, -1},
253 { 5, 6, 0, 1, 7, 3, 8, 4, -1},
254 { 4, 2, 5, 0, 1, 6, 8, 7, -1},
255};
256
257static const int8_t dca_channel_reorder_lfe_xch[][9] = {
258 { 0, 2, -1, -1, -1, -1, -1, -1, -1},
259 { 0, 1, 3, -1, -1, -1, -1, -1, -1},
260 { 0, 1, 3, -1, -1, -1, -1, -1, -1},
261 { 0, 1, 3, -1, -1, -1, -1, -1, -1},
262 { 0, 1, 3, -1, -1, -1, -1, -1, -1},
263 { 2, 0, 1, 4, -1, -1, -1, -1, -1},
264 { 0, 1, 3, 4, -1, -1, -1, -1, -1},
265 { 2, 0, 1, 4, 5, -1, -1, -1, -1},
266 { 0, 1, 4, 5, 3, -1, -1, -1, -1},
267 { 2, 0, 1, 5, 6, 4, -1, -1, -1},
268 { 3, 4, 0, 1, 6, 7, 5, -1, -1},
269 { 2, 0, 1, 4, 5, 6, 7, -1, -1},
270 { 0, 6, 4, 5, 2, 3, 7, -1, -1},
271 { 4, 2, 5, 0, 1, 7, 8, 6, -1},
272 { 5, 6, 0, 1, 8, 3, 9, 4, 7},
273 { 4, 2, 5, 0, 1, 6, 9, 8, 7},
274};
275
276static const int8_t dca_channel_reorder_nolfe[][9] = {
277 { 0, -1, -1, -1, -1, -1, -1, -1, -1},
278 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
279 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
280 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
281 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
282 { 2, 0, 1, -1, -1, -1, -1, -1, -1},
283 { 0, 1, 2, -1, -1, -1, -1, -1, -1},
284 { 2, 0, 1, 3, -1, -1, -1, -1, -1},
285 { 0, 1, 2, 3, -1, -1, -1, -1, -1},
286 { 2, 0, 1, 3, 4, -1, -1, -1, -1},
287 { 2, 3, 0, 1, 4, 5, -1, -1, -1},
288 { 2, 0, 1, 3, 4, 5, -1, -1, -1},
289 { 0, 5, 3, 4, 1, 2, -1, -1, -1},
290 { 3, 2, 4, 0, 1, 5, 6, -1, -1},
291 { 4, 5, 0, 1, 6, 2, 7, 3, -1},
292 { 3, 2, 4, 0, 1, 5, 7, 6, -1},
293};
294
295static const int8_t dca_channel_reorder_nolfe_xch[][9] = {
296 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
297 { 0, 1, 2, -1, -1, -1, -1, -1, -1},
298 { 0, 1, 2, -1, -1, -1, -1, -1, -1},
299 { 0, 1, 2, -1, -1, -1, -1, -1, -1},
300 { 0, 1, 2, -1, -1, -1, -1, -1, -1},
301 { 2, 0, 1, 3, -1, -1, -1, -1, -1},
302 { 0, 1, 2, 3, -1, -1, -1, -1, -1},
303 { 2, 0, 1, 3, 4, -1, -1, -1, -1},
304 { 0, 1, 3, 4, 2, -1, -1, -1, -1},
305 { 2, 0, 1, 4, 5, 3, -1, -1, -1},
306 { 2, 3, 0, 1, 5, 6, 4, -1, -1},
307 { 2, 0, 1, 3, 4, 5, 6, -1, -1},
308 { 0, 5, 3, 4, 1, 2, 6, -1, -1},
309 { 3, 2, 4, 0, 1, 6, 7, 5, -1},
310 { 4, 5, 0, 1, 7, 2, 8, 3, 6},
311 { 3, 2, 4, 0, 1, 5, 8, 7, 6},
312};
313
314#define DCA_DOLBY 101 /* FIXME */
315
316#define DCA_CHANNEL_BITS 6
317#define DCA_CHANNEL_MASK 0x3F
318
319#define DCA_LFE 0x80
320
321#define HEADER_SIZE 14
322
323#define DCA_MAX_FRAME_SIZE 16384
324#define DCA_MAX_EXSS_HEADER_SIZE 4096
325
326#define DCA_BUFFER_PADDING_SIZE 1024
327
328/** Bit allocation */
329typedef struct {
330 int offset; ///< code values offset
331 int maxbits[8]; ///< max bits in VLC
332 int wrap; ///< wrap for get_vlc2()
333 VLC vlc[8]; ///< actual codes
334} BitAlloc;
335
336static BitAlloc dca_bitalloc_index; ///< indexes for samples VLC select
337static BitAlloc dca_tmode; ///< transition mode VLCs
338static BitAlloc dca_scalefactor; ///< scalefactor VLCs
339static BitAlloc dca_smpl_bitalloc[11]; ///< samples VLCs
340
341static av_always_inline int get_bitalloc(GetBitContext *gb, BitAlloc *ba,
342 int idx)
343{
344 return get_vlc2(gb, ba->vlc[idx].table, ba->vlc[idx].bits, ba->wrap) +
345 ba->offset;
346}
347
348typedef struct {
349 AVCodecContext *avctx;
350 AVFrame frame;
351 /* Frame header */
352 int frame_type; ///< type of the current frame
353 int samples_deficit; ///< deficit sample count
354 int crc_present; ///< crc is present in the bitstream
355 int sample_blocks; ///< number of PCM sample blocks
356 int frame_size; ///< primary frame byte size
357 int amode; ///< audio channels arrangement
358 int sample_rate; ///< audio sampling rate
359 int bit_rate; ///< transmission bit rate
360 int bit_rate_index; ///< transmission bit rate index
361
362 int downmix; ///< embedded downmix enabled
363 int dynrange; ///< embedded dynamic range flag
364 int timestamp; ///< embedded time stamp flag
365 int aux_data; ///< auxiliary data flag
366 int hdcd; ///< source material is mastered in HDCD
367 int ext_descr; ///< extension audio descriptor flag
368 int ext_coding; ///< extended coding flag
369 int aspf; ///< audio sync word insertion flag
370 int lfe; ///< low frequency effects flag
371 int predictor_history; ///< predictor history flag
372 int header_crc; ///< header crc check bytes
373 int multirate_inter; ///< multirate interpolator switch
374 int version; ///< encoder software revision
375 int copy_history; ///< copy history
376 int source_pcm_res; ///< source pcm resolution
377 int front_sum; ///< front sum/difference flag
378 int surround_sum; ///< surround sum/difference flag
379 int dialog_norm; ///< dialog normalisation parameter
380
381 /* Primary audio coding header */
382 int subframes; ///< number of subframes
383 int total_channels; ///< number of channels including extensions
384 int prim_channels; ///< number of primary audio channels
385 int subband_activity[DCA_PRIM_CHANNELS_MAX]; ///< subband activity count
386 int vq_start_subband[DCA_PRIM_CHANNELS_MAX]; ///< high frequency vq start subband
387 int joint_intensity[DCA_PRIM_CHANNELS_MAX]; ///< joint intensity coding index
388 int transient_huffman[DCA_PRIM_CHANNELS_MAX]; ///< transient mode code book
389 int scalefactor_huffman[DCA_PRIM_CHANNELS_MAX]; ///< scale factor code book
390 int bitalloc_huffman[DCA_PRIM_CHANNELS_MAX]; ///< bit allocation quantizer select
391 int quant_index_huffman[DCA_PRIM_CHANNELS_MAX][DCA_ABITS_MAX]; ///< quantization index codebook select
392 float scalefactor_adj[DCA_PRIM_CHANNELS_MAX][DCA_ABITS_MAX]; ///< scale factor adjustment
393
394 /* Primary audio coding side information */
395 int subsubframes[DCA_SUBFRAMES_MAX]; ///< number of subsubframes
396 int partial_samples[DCA_SUBFRAMES_MAX]; ///< partial subsubframe samples count
397 int prediction_mode[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< prediction mode (ADPCM used or not)
398 int prediction_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< prediction VQ coefs
399 int bitalloc[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< bit allocation index
400 int transition_mode[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< transition mode (transients)
401 int scale_factor[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][2]; ///< scale factors (2 if transient)
402 int joint_huff[DCA_PRIM_CHANNELS_MAX]; ///< joint subband scale factors codebook
403 int joint_scale_factor[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< joint subband scale factors
404 int downmix_coef[DCA_PRIM_CHANNELS_MAX][2]; ///< stereo downmix coefficients
405 int dynrange_coef; ///< dynamic range coefficient
406
407 int high_freq_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< VQ encoded high frequency subbands
408
409 float lfe_data[2 * DCA_LFE_MAX * (DCA_BLOCKS_MAX + 4)]; ///< Low frequency effect data
410 int lfe_scale_factor;
411
412 /* Subband samples history (for ADPCM) */
413 DECLARE_ALIGNED(16, float, subband_samples_hist)[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][4];
414 DECLARE_ALIGNED(32, float, subband_fir_hist)[DCA_PRIM_CHANNELS_MAX][512];
415 DECLARE_ALIGNED(32, float, subband_fir_noidea)[DCA_PRIM_CHANNELS_MAX][32];
416 int hist_index[DCA_PRIM_CHANNELS_MAX];
417 DECLARE_ALIGNED(32, float, raXin)[32];
418
419 int output; ///< type of output
420 float scale_bias; ///< output scale
421
422 DECLARE_ALIGNED(32, float, subband_samples)[DCA_BLOCKS_MAX][DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][8];
423 DECLARE_ALIGNED(32, float, samples)[(DCA_PRIM_CHANNELS_MAX + 1) * 256];
424 const float *samples_chanptr[DCA_PRIM_CHANNELS_MAX + 1];
425
426 uint8_t dca_buffer[DCA_MAX_FRAME_SIZE + DCA_MAX_EXSS_HEADER_SIZE + DCA_BUFFER_PADDING_SIZE];
427 int dca_buffer_size; ///< how much data is in the dca_buffer
428
429 const int8_t *channel_order_tab; ///< channel reordering table, lfe and non lfe
430 GetBitContext gb;
431 /* Current position in DCA frame */
432 int current_subframe;
433 int current_subsubframe;
434
435 int core_ext_mask; ///< present extensions in the core substream
436
437 /* XCh extension information */
438 int xch_present; ///< XCh extension present and valid
439 int xch_base_channel; ///< index of first (only) channel containing XCH data
440
441 /* XXCH extension information */
442 int xxch_chset;
443 int xxch_nbits_spk_mask;
444 uint32_t xxch_core_spkmask;
445 uint32_t xxch_spk_masks[4]; /* speaker masks, last element is core mask */
446 int xxch_chset_nch[4];
447 float xxch_dmix_sf[DCA_CHSETS_MAX];
448
449 uint32_t xxch_downmix; /* downmix enabled per channel set */
450 uint32_t xxch_dmix_embedded; /* lower layer has mix pre-embedded, per chset */
451 float xxch_dmix_coeff[DCA_PRIM_CHANNELS_MAX][32]; /* worst case sizing */
452
453 int8_t xxch_order_tab[32];
454 int8_t lfe_index;
455
456 /* ExSS header parser */
457 int static_fields; ///< static fields present
458 int mix_metadata; ///< mixing metadata present
459 int num_mix_configs; ///< number of mix out configurations
460 int mix_config_num_ch[4]; ///< number of channels in each mix out configuration
461
462 int profile;
463
464 int debug_flag; ///< used for suppressing repeated error messages output
465 AVFloatDSPContext fdsp;
466 FFTContext imdct;
467 SynthFilterContext synth;
468 DCADSPContext dcadsp;
469 FmtConvertContext fmt_conv;
470} DCAContext;
471
472static const uint16_t dca_vlc_offs[] = {
473 0, 512, 640, 768, 1282, 1794, 2436, 3080, 3770, 4454, 5364,
474 5372, 5380, 5388, 5392, 5396, 5412, 5420, 5428, 5460, 5492, 5508,
475 5572, 5604, 5668, 5796, 5860, 5892, 6412, 6668, 6796, 7308, 7564,
476 7820, 8076, 8620, 9132, 9388, 9910, 10166, 10680, 11196, 11726, 12240,
477 12752, 13298, 13810, 14326, 14840, 15500, 16022, 16540, 17158, 17678, 18264,
478 18796, 19352, 19926, 20468, 21472, 22398, 23014, 23622,
479};
480
481static av_cold void dca_init_vlcs(void)
482{
483 static int vlcs_initialized = 0;
484 int i, j, c = 14;
485 static VLC_TYPE dca_table[23622][2];
486
487 if (vlcs_initialized)
488 return;
489
490 dca_bitalloc_index.offset = 1;
491 dca_bitalloc_index.wrap = 2;
492 for (i = 0; i < 5; i++) {
493 dca_bitalloc_index.vlc[i].table = &dca_table[dca_vlc_offs[i]];
494 dca_bitalloc_index.vlc[i].table_allocated = dca_vlc_offs[i + 1] - dca_vlc_offs[i];
495 init_vlc(&dca_bitalloc_index.vlc[i], bitalloc_12_vlc_bits[i], 12,
496 bitalloc_12_bits[i], 1, 1,
497 bitalloc_12_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
498 }
499 dca_scalefactor.offset = -64;
500 dca_scalefactor.wrap = 2;
501 for (i = 0; i < 5; i++) {
502 dca_scalefactor.vlc[i].table = &dca_table[dca_vlc_offs[i + 5]];
503 dca_scalefactor.vlc[i].table_allocated = dca_vlc_offs[i + 6] - dca_vlc_offs[i + 5];
504 init_vlc(&dca_scalefactor.vlc[i], SCALES_VLC_BITS, 129,
505 scales_bits[i], 1, 1,
506 scales_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
507 }
508 dca_tmode.offset = 0;
509 dca_tmode.wrap = 1;
510 for (i = 0; i < 4; i++) {
511 dca_tmode.vlc[i].table = &dca_table[dca_vlc_offs[i + 10]];
512 dca_tmode.vlc[i].table_allocated = dca_vlc_offs[i + 11] - dca_vlc_offs[i + 10];
513 init_vlc(&dca_tmode.vlc[i], tmode_vlc_bits[i], 4,
514 tmode_bits[i], 1, 1,
515 tmode_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
516 }
517
518 for (i = 0; i < 10; i++)
519 for (j = 0; j < 7; j++) {
520 if (!bitalloc_codes[i][j])
521 break;
522 dca_smpl_bitalloc[i + 1].offset = bitalloc_offsets[i];
523 dca_smpl_bitalloc[i + 1].wrap = 1 + (j > 4);
524 dca_smpl_bitalloc[i + 1].vlc[j].table = &dca_table[dca_vlc_offs[c]];
525 dca_smpl_bitalloc[i + 1].vlc[j].table_allocated = dca_vlc_offs[c + 1] - dca_vlc_offs[c];
526
527 init_vlc(&dca_smpl_bitalloc[i + 1].vlc[j], bitalloc_maxbits[i][j],
528 bitalloc_sizes[i],
529 bitalloc_bits[i][j], 1, 1,
530 bitalloc_codes[i][j], 2, 2, INIT_VLC_USE_NEW_STATIC);
531 c++;
532 }
533 vlcs_initialized = 1;
534}
535
536static inline void get_array(GetBitContext *gb, int *dst, int len, int bits)
537{
538 while (len--)
539 *dst++ = get_bits(gb, bits);
540}
541
542static inline int dca_xxch2index(DCAContext *s, int xxch_ch)
543{
544 int i, base, mask;
545
546 /* locate channel set containing the channel */
547 for (i = -1, base = 0, mask = (s->xxch_core_spkmask & ~DCA_XXCH_LFE1);
548 i <= s->xxch_chset && !(mask & xxch_ch); mask = s->xxch_spk_masks[++i])
549 base += av_popcount(mask);
550
551 return base + av_popcount(mask & (xxch_ch - 1));
552}
553
554static int dca_parse_audio_coding_header(DCAContext *s, int base_channel,
555 int xxch)
556{
557 int i, j;
558 static const float adj_table[4] = { 1.0, 1.1250, 1.2500, 1.4375 };
559 static const int bitlen[11] = { 0, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3 };
560 static const int thr[11] = { 0, 1, 3, 3, 3, 3, 7, 7, 7, 7, 7 };
561 int hdr_pos = 0, hdr_size = 0;
562 float sign, mag, scale_factor;
563 int this_chans, acc_mask;
564 int embedded_downmix;
565 int nchans, mask[8];
566 int coeff, ichan;
567
568 /* xxch has arbitrary sized audio coding headers */
569 if (xxch) {
570 hdr_pos = get_bits_count(&s->gb);
571 hdr_size = get_bits(&s->gb, 7) + 1;
572 }
573
574 nchans = get_bits(&s->gb, 3) + 1;
575 s->total_channels = nchans + base_channel;
576 s->prim_channels = s->total_channels;
577
578 /* obtain speaker layout mask & downmix coefficients for XXCH */
579 if (xxch) {
580 acc_mask = s->xxch_core_spkmask;
581
582 this_chans = get_bits(&s->gb, s->xxch_nbits_spk_mask - 6) << 6;
583 s->xxch_spk_masks[s->xxch_chset] = this_chans;
584 s->xxch_chset_nch[s->xxch_chset] = nchans;
585
586 for (i = 0; i <= s->xxch_chset; i++)
587 acc_mask |= s->xxch_spk_masks[i];
588
589 /* check for downmixing information */
590 if (get_bits1(&s->gb)) {
591 embedded_downmix = get_bits1(&s->gb);
592 scale_factor =
593 1.0f / dca_downmix_scale_factors[(get_bits(&s->gb, 6) - 1) << 2];
594
595 s->xxch_dmix_sf[s->xxch_chset] = scale_factor;
596
597 for (i = base_channel; i < s->prim_channels; i++) {
598 s->xxch_downmix |= (1 << i);
599 mask[i] = get_bits(&s->gb, s->xxch_nbits_spk_mask);
600 }
601
602 for (j = base_channel; j < s->prim_channels; j++) {
603 memset(s->xxch_dmix_coeff[j], 0, sizeof(s->xxch_dmix_coeff[0]));
604 s->xxch_dmix_embedded |= (embedded_downmix << j);
605 for (i = 0; i < s->xxch_nbits_spk_mask; i++) {
606 if (mask[j] & (1 << i)) {
607 if ((1 << i) == DCA_XXCH_LFE1) {
608 av_log(s->avctx, AV_LOG_WARNING,
609 "DCA-XXCH: dmix to LFE1 not supported.\n");
610 continue;
611 }
612
613 coeff = get_bits(&s->gb, 7);
614 sign = (coeff & 64) ? 1.0 : -1.0;
615 mag = dca_downmix_scale_factors[((coeff & 63) - 1) << 2];
616 ichan = dca_xxch2index(s, 1 << i);
617 s->xxch_dmix_coeff[j][ichan] = sign * mag;
618 }
619 }
620 }
621 }
622 }
623
624 if (s->prim_channels > DCA_PRIM_CHANNELS_MAX)
625 s->prim_channels = DCA_PRIM_CHANNELS_MAX;
626
627
628 for (i = base_channel; i < s->prim_channels; i++) {
629 s->subband_activity[i] = get_bits(&s->gb, 5) + 2;
630 if (s->subband_activity[i] > DCA_SUBBANDS)
631 s->subband_activity[i] = DCA_SUBBANDS;
632 }
633 for (i = base_channel; i < s->prim_channels; i++) {
634 s->vq_start_subband[i] = get_bits(&s->gb, 5) + 1;
635 if (s->vq_start_subband[i] > DCA_SUBBANDS)
636 s->vq_start_subband[i] = DCA_SUBBANDS;
637 }
638 get_array(&s->gb, s->joint_intensity + base_channel, s->prim_channels - base_channel, 3);
639 get_array(&s->gb, s->transient_huffman + base_channel, s->prim_channels - base_channel, 2);
640 get_array(&s->gb, s->scalefactor_huffman + base_channel, s->prim_channels - base_channel, 3);
641 get_array(&s->gb, s->bitalloc_huffman + base_channel, s->prim_channels - base_channel, 3);
642
643 /* Get codebooks quantization indexes */
644 if (!base_channel)
645 memset(s->quant_index_huffman, 0, sizeof(s->quant_index_huffman));
646 for (j = 1; j < 11; j++)
647 for (i = base_channel; i < s->prim_channels; i++)
648 s->quant_index_huffman[i][j] = get_bits(&s->gb, bitlen[j]);
649
650 /* Get scale factor adjustment */
651 for (j = 0; j < 11; j++)
652 for (i = base_channel; i < s->prim_channels; i++)
653 s->scalefactor_adj[i][j] = 1;
654
655 for (j = 1; j < 11; j++)
656 for (i = base_channel; i < s->prim_channels; i++)
657 if (s->quant_index_huffman[i][j] < thr[j])
658 s->scalefactor_adj[i][j] = adj_table[get_bits(&s->gb, 2)];
659
660 if (!xxch) {
661 if (s->crc_present) {
662 /* Audio header CRC check */
663 get_bits(&s->gb, 16);
664 }
665 } else {
666 /* Skip to the end of the header, also ignore CRC if present */
667 i = get_bits_count(&s->gb);
668 if (hdr_pos + 8 * hdr_size > i)
669 skip_bits_long(&s->gb, hdr_pos + 8 * hdr_size - i);
670 }
671
672 s->current_subframe = 0;
673 s->current_subsubframe = 0;
674
675#ifdef TRACE
676 av_log(s->avctx, AV_LOG_DEBUG, "subframes: %i\n", s->subframes);
677 av_log(s->avctx, AV_LOG_DEBUG, "prim channels: %i\n", s->prim_channels);
678 for (i = base_channel; i < s->prim_channels; i++) {
679 av_log(s->avctx, AV_LOG_DEBUG, "subband activity: %i\n",
680 s->subband_activity[i]);
681 av_log(s->avctx, AV_LOG_DEBUG, "vq start subband: %i\n",
682 s->vq_start_subband[i]);
683 av_log(s->avctx, AV_LOG_DEBUG, "joint intensity: %i\n",
684 s->joint_intensity[i]);
685 av_log(s->avctx, AV_LOG_DEBUG, "transient mode codebook: %i\n",
686 s->transient_huffman[i]);
687 av_log(s->avctx, AV_LOG_DEBUG, "scale factor codebook: %i\n",
688 s->scalefactor_huffman[i]);
689 av_log(s->avctx, AV_LOG_DEBUG, "bit allocation quantizer: %i\n",
690 s->bitalloc_huffman[i]);
691 av_log(s->avctx, AV_LOG_DEBUG, "quant index huff:");
692 for (j = 0; j < 11; j++)
693 av_log(s->avctx, AV_LOG_DEBUG, " %i", s->quant_index_huffman[i][j]);
694 av_log(s->avctx, AV_LOG_DEBUG, "\n");
695 av_log(s->avctx, AV_LOG_DEBUG, "scalefac adj:");
696 for (j = 0; j < 11; j++)
697 av_log(s->avctx, AV_LOG_DEBUG, " %1.3f", s->scalefactor_adj[i][j]);
698 av_log(s->avctx, AV_LOG_DEBUG, "\n");
699 }
700#endif
701
702 return 0;
703}
704
705static int dca_parse_frame_header(DCAContext *s)
706{
707 init_get_bits(&s->gb, s->dca_buffer, s->dca_buffer_size * 8);
708
709 /* Sync code */
710 skip_bits_long(&s->gb, 32);
711
712 /* Frame header */
713 s->frame_type = get_bits(&s->gb, 1);
714 s->samples_deficit = get_bits(&s->gb, 5) + 1;
715 s->crc_present = get_bits(&s->gb, 1);
716 s->sample_blocks = get_bits(&s->gb, 7) + 1;
717 s->frame_size = get_bits(&s->gb, 14) + 1;
718 if (s->frame_size < 95)
719 return AVERROR_INVALIDDATA;
720 s->amode = get_bits(&s->gb, 6);
721 s->sample_rate = dca_sample_rates[get_bits(&s->gb, 4)];
722 if (!s->sample_rate)
723 return AVERROR_INVALIDDATA;
724 s->bit_rate_index = get_bits(&s->gb, 5);
725 s->bit_rate = dca_bit_rates[s->bit_rate_index];
726 if (!s->bit_rate)
727 return AVERROR_INVALIDDATA;
728
729 s->downmix = get_bits(&s->gb, 1); /* note: this is FixedBit == 0 */
730 s->dynrange = get_bits(&s->gb, 1);
731 s->timestamp = get_bits(&s->gb, 1);
732 s->aux_data = get_bits(&s->gb, 1);
733 s->hdcd = get_bits(&s->gb, 1);
734 s->ext_descr = get_bits(&s->gb, 3);
735 s->ext_coding = get_bits(&s->gb, 1);
736 s->aspf = get_bits(&s->gb, 1);
737 s->lfe = get_bits(&s->gb, 2);
738 s->predictor_history = get_bits(&s->gb, 1);
739
740 /* TODO: check CRC */
741 if (s->crc_present)
742 s->header_crc = get_bits(&s->gb, 16);
743
744 s->multirate_inter = get_bits(&s->gb, 1);
745 s->version = get_bits(&s->gb, 4);
746 s->copy_history = get_bits(&s->gb, 2);
747 s->source_pcm_res = get_bits(&s->gb, 3);
748 s->front_sum = get_bits(&s->gb, 1);
749 s->surround_sum = get_bits(&s->gb, 1);
750 s->dialog_norm = get_bits(&s->gb, 4);
751
752 /* FIXME: channels mixing levels */
753 s->output = s->amode;
754 if (s->lfe)
755 s->output |= DCA_LFE;
756
757#ifdef TRACE
758 av_log(s->avctx, AV_LOG_DEBUG, "frame type: %i\n", s->frame_type);
759 av_log(s->avctx, AV_LOG_DEBUG, "samples deficit: %i\n", s->samples_deficit);
760 av_log(s->avctx, AV_LOG_DEBUG, "crc present: %i\n", s->crc_present);
761 av_log(s->avctx, AV_LOG_DEBUG, "sample blocks: %i (%i samples)\n",
762 s->sample_blocks, s->sample_blocks * 32);
763 av_log(s->avctx, AV_LOG_DEBUG, "frame size: %i bytes\n", s->frame_size);
764 av_log(s->avctx, AV_LOG_DEBUG, "amode: %i (%i channels)\n",
765 s->amode, dca_channels[s->amode]);
766 av_log(s->avctx, AV_LOG_DEBUG, "sample rate: %i Hz\n",
767 s->sample_rate);
768 av_log(s->avctx, AV_LOG_DEBUG, "bit rate: %i bits/s\n",
769 s->bit_rate);
770 av_log(s->avctx, AV_LOG_DEBUG, "downmix: %i\n", s->downmix);
771 av_log(s->avctx, AV_LOG_DEBUG, "dynrange: %i\n", s->dynrange);
772 av_log(s->avctx, AV_LOG_DEBUG, "timestamp: %i\n", s->timestamp);
773 av_log(s->avctx, AV_LOG_DEBUG, "aux_data: %i\n", s->aux_data);
774 av_log(s->avctx, AV_LOG_DEBUG, "hdcd: %i\n", s->hdcd);
775 av_log(s->avctx, AV_LOG_DEBUG, "ext descr: %i\n", s->ext_descr);
776 av_log(s->avctx, AV_LOG_DEBUG, "ext coding: %i\n", s->ext_coding);
777 av_log(s->avctx, AV_LOG_DEBUG, "aspf: %i\n", s->aspf);
778 av_log(s->avctx, AV_LOG_DEBUG, "lfe: %i\n", s->lfe);
779 av_log(s->avctx, AV_LOG_DEBUG, "predictor history: %i\n",
780 s->predictor_history);
781 av_log(s->avctx, AV_LOG_DEBUG, "header crc: %i\n", s->header_crc);
782 av_log(s->avctx, AV_LOG_DEBUG, "multirate inter: %i\n",
783 s->multirate_inter);
784 av_log(s->avctx, AV_LOG_DEBUG, "version number: %i\n", s->version);
785 av_log(s->avctx, AV_LOG_DEBUG, "copy history: %i\n", s->copy_history);
786 av_log(s->avctx, AV_LOG_DEBUG,
787 "source pcm resolution: %i (%i bits/sample)\n",
788 s->source_pcm_res, dca_bits_per_sample[s->source_pcm_res]);
789 av_log(s->avctx, AV_LOG_DEBUG, "front sum: %i\n", s->front_sum);
790 av_log(s->avctx, AV_LOG_DEBUG, "surround sum: %i\n", s->surround_sum);
791 av_log(s->avctx, AV_LOG_DEBUG, "dialog norm: %i\n", s->dialog_norm);
792 av_log(s->avctx, AV_LOG_DEBUG, "\n");
793#endif
794
795 /* Primary audio coding header */
796 s->subframes = get_bits(&s->gb, 4) + 1;
797
798 return dca_parse_audio_coding_header(s, 0, 0);
799}
800
801
802static inline int get_scale(GetBitContext *gb, int level, int value, int log2range)
803{
804 if (level < 5) {
805 /* huffman encoded */
806 value += get_bitalloc(gb, &dca_scalefactor, level);
807 value = av_clip(value, 0, (1 << log2range) - 1);
808 } else if (level < 8) {
809 if (level + 1 > log2range) {
810 skip_bits(gb, level + 1 - log2range);
811 value = get_bits(gb, log2range);
812 } else {
813 value = get_bits(gb, level + 1);
814 }
815 }
816 return value;
817}
818
819static int dca_subframe_header(DCAContext *s, int base_channel, int block_index)
820{
821 /* Primary audio coding side information */
822 int j, k;
823
824 if (get_bits_left(&s->gb) < 0)
825 return AVERROR_INVALIDDATA;
826
827 if (!base_channel) {
828 s->subsubframes[s->current_subframe] = get_bits(&s->gb, 2) + 1;
829 s->partial_samples[s->current_subframe] = get_bits(&s->gb, 3);
830 }
831
832 for (j = base_channel; j < s->prim_channels; j++) {
833 for (k = 0; k < s->subband_activity[j]; k++)
834 s->prediction_mode[j][k] = get_bits(&s->gb, 1);
835 }
836
837 /* Get prediction codebook */
838 for (j = base_channel; j < s->prim_channels; j++) {
839 for (k = 0; k < s->subband_activity[j]; k++) {
840 if (s->prediction_mode[j][k] > 0) {
841 /* (Prediction coefficient VQ address) */
842 s->prediction_vq[j][k] = get_bits(&s->gb, 12);
843 }
844 }
845 }
846
847 /* Bit allocation index */
848 for (j = base_channel; j < s->prim_channels; j++) {
849 for (k = 0; k < s->vq_start_subband[j]; k++) {
850 if (s->bitalloc_huffman[j] == 6)
851 s->bitalloc[j][k] = get_bits(&s->gb, 5);
852 else if (s->bitalloc_huffman[j] == 5)
853 s->bitalloc[j][k] = get_bits(&s->gb, 4);
854 else if (s->bitalloc_huffman[j] == 7) {
855 av_log(s->avctx, AV_LOG_ERROR,
856 "Invalid bit allocation index\n");
857 return AVERROR_INVALIDDATA;
858 } else {
859 s->bitalloc[j][k] =
860 get_bitalloc(&s->gb, &dca_bitalloc_index, s->bitalloc_huffman[j]);
861 }
862
863 if (s->bitalloc[j][k] > 26) {
864 // av_log(s->avctx, AV_LOG_DEBUG, "bitalloc index [%i][%i] too big (%i)\n",
865 // j, k, s->bitalloc[j][k]);
866 return AVERROR_INVALIDDATA;
867 }
868 }
869 }
870
871 /* Transition mode */
872 for (j = base_channel; j < s->prim_channels; j++) {
873 for (k = 0; k < s->subband_activity[j]; k++) {
874 s->transition_mode[j][k] = 0;
875 if (s->subsubframes[s->current_subframe] > 1 &&
876 k < s->vq_start_subband[j] && s->bitalloc[j][k] > 0) {
877 s->transition_mode[j][k] =
878 get_bitalloc(&s->gb, &dca_tmode, s->transient_huffman[j]);
879 }
880 }
881 }
882
883 if (get_bits_left(&s->gb) < 0)
884 return AVERROR_INVALIDDATA;
885
886 for (j = base_channel; j < s->prim_channels; j++) {
887 const uint32_t *scale_table;
888 int scale_sum, log_size;
889
890 memset(s->scale_factor[j], 0,
891 s->subband_activity[j] * sizeof(s->scale_factor[0][0][0]) * 2);
892
893 if (s->scalefactor_huffman[j] == 6) {
894 scale_table = scale_factor_quant7;
895 log_size = 7;
896 } else {
897 scale_table = scale_factor_quant6;
898 log_size = 6;
899 }
900
901 /* When huffman coded, only the difference is encoded */
902 scale_sum = 0;
903
904 for (k = 0; k < s->subband_activity[j]; k++) {
905 if (k >= s->vq_start_subband[j] || s->bitalloc[j][k] > 0) {
906 scale_sum = get_scale(&s->gb, s->scalefactor_huffman[j], scale_sum, log_size);
907 s->scale_factor[j][k][0] = scale_table[scale_sum];
908 }
909
910 if (k < s->vq_start_subband[j] && s->transition_mode[j][k]) {
911 /* Get second scale factor */
912 scale_sum = get_scale(&s->gb, s->scalefactor_huffman[j], scale_sum, log_size);
913 s->scale_factor[j][k][1] = scale_table[scale_sum];
914 }
915 }
916 }
917
918 /* Joint subband scale factor codebook select */
919 for (j = base_channel; j < s->prim_channels; j++) {
920 /* Transmitted only if joint subband coding enabled */
921 if (s->joint_intensity[j] > 0)
922 s->joint_huff[j] = get_bits(&s->gb, 3);
923 }
924
925 if (get_bits_left(&s->gb) < 0)
926 return AVERROR_INVALIDDATA;
927
928 /* Scale factors for joint subband coding */
929 for (j = base_channel; j < s->prim_channels; j++) {
930 int source_channel;
931
932 /* Transmitted only if joint subband coding enabled */
933 if (s->joint_intensity[j] > 0) {
934 int scale = 0;
935 source_channel = s->joint_intensity[j] - 1;
936
937 /* When huffman coded, only the difference is encoded
938 * (is this valid as well for joint scales ???) */
939
940 for (k = s->subband_activity[j]; k < s->subband_activity[source_channel]; k++) {
941 scale = get_scale(&s->gb, s->joint_huff[j], 64 /* bias */, 7);
942 s->joint_scale_factor[j][k] = scale; /*joint_scale_table[scale]; */
943 }
944
945 if (!(s->debug_flag & 0x02)) {
946 av_log(s->avctx, AV_LOG_DEBUG,
947 "Joint stereo coding not supported\n");
948 s->debug_flag |= 0x02;
949 }
950 }
951 }
952
953 /* Stereo downmix coefficients */
954 if (!base_channel && s->prim_channels > 2) {
955 if (s->downmix) {
956 for (j = base_channel; j < s->prim_channels; j++) {
957 s->downmix_coef[j][0] = get_bits(&s->gb, 7);
958 s->downmix_coef[j][1] = get_bits(&s->gb, 7);
959 }
960 } else {
961 int am = s->amode & DCA_CHANNEL_MASK;
962 if (am >= FF_ARRAY_ELEMS(dca_default_coeffs)) {
963 av_log(s->avctx, AV_LOG_ERROR,
964 "Invalid channel mode %d\n", am);
965 return AVERROR_INVALIDDATA;
966 }
967 for (j = base_channel; j < FFMIN(s->prim_channels, FF_ARRAY_ELEMS(dca_default_coeffs[am])); j++) {
968 s->downmix_coef[j][0] = dca_default_coeffs[am][j][0];
969 s->downmix_coef[j][1] = dca_default_coeffs[am][j][1];
970 }
971 }
972 }
973
974 /* Dynamic range coefficient */
975 if (!base_channel && s->dynrange)
976 s->dynrange_coef = get_bits(&s->gb, 8);
977
978 /* Side information CRC check word */
979 if (s->crc_present) {
980 get_bits(&s->gb, 16);
981 }
982
983 /*
984 * Primary audio data arrays
985 */
986
987 /* VQ encoded high frequency subbands */
988 for (j = base_channel; j < s->prim_channels; j++)
989 for (k = s->vq_start_subband[j]; k < s->subband_activity[j]; k++)
990 /* 1 vector -> 32 samples */
991 s->high_freq_vq[j][k] = get_bits(&s->gb, 10);
992
993 /* Low frequency effect data */
994 if (!base_channel && s->lfe) {
995 int quant7;
996 /* LFE samples */
997 int lfe_samples = 2 * s->lfe * (4 + block_index);
998 int lfe_end_sample = 2 * s->lfe * (4 + block_index + s->subsubframes[s->current_subframe]);
999 float lfe_scale;
1000
1001 for (j = lfe_samples; j < lfe_end_sample; j++) {
1002 /* Signed 8 bits int */
1003 s->lfe_data[j] = get_sbits(&s->gb, 8);
1004 }
1005
1006 /* Scale factor index */
1007 quant7 = get_bits(&s->gb, 8);
1008 if (quant7 > 127) {
1009 av_log_ask_for_sample(s->avctx, "LFEScaleIndex larger than 127\n");
1010 return AVERROR_INVALIDDATA;
1011 }
1012 s->lfe_scale_factor = scale_factor_quant7[quant7];
1013
1014 /* Quantization step size * scale factor */
1015 lfe_scale = 0.035 * s->lfe_scale_factor;
1016
1017 for (j = lfe_samples; j < lfe_end_sample; j++)
1018 s->lfe_data[j] *= lfe_scale;
1019 }
1020
1021#ifdef TRACE
1022 av_log(s->avctx, AV_LOG_DEBUG, "subsubframes: %i\n",
1023 s->subsubframes[s->current_subframe]);
1024 av_log(s->avctx, AV_LOG_DEBUG, "partial samples: %i\n",
1025 s->partial_samples[s->current_subframe]);
1026
1027 for (j = base_channel; j < s->prim_channels; j++) {
1028 av_log(s->avctx, AV_LOG_DEBUG, "prediction mode:");
1029 for (k = 0; k < s->subband_activity[j]; k++)
1030 av_log(s->avctx, AV_LOG_DEBUG, " %i", s->prediction_mode[j][k]);
1031 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1032 }
1033 for (j = base_channel; j < s->prim_channels; j++) {
1034 for (k = 0; k < s->subband_activity[j]; k++)
1035 av_log(s->avctx, AV_LOG_DEBUG,
1036 "prediction coefs: %f, %f, %f, %f\n",
1037 (float) adpcm_vb[s->prediction_vq[j][k]][0] / 8192,
1038 (float) adpcm_vb[s->prediction_vq[j][k]][1] / 8192,
1039 (float) adpcm_vb[s->prediction_vq[j][k]][2] / 8192,
1040 (float) adpcm_vb[s->prediction_vq[j][k]][3] / 8192);
1041 }
1042 for (j = base_channel; j < s->prim_channels; j++) {
1043 av_log(s->avctx, AV_LOG_DEBUG, "bitalloc index: ");
1044 for (k = 0; k < s->vq_start_subband[j]; k++)
1045 av_log(s->avctx, AV_LOG_DEBUG, "%2.2i ", s->bitalloc[j][k]);
1046 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1047 }
1048 for (j = base_channel; j < s->prim_channels; j++) {
1049 av_log(s->avctx, AV_LOG_DEBUG, "Transition mode:");
1050 for (k = 0; k < s->subband_activity[j]; k++)
1051 av_log(s->avctx, AV_LOG_DEBUG, " %i", s->transition_mode[j][k]);
1052 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1053 }
1054 for (j = base_channel; j < s->prim_channels; j++) {
1055 av_log(s->avctx, AV_LOG_DEBUG, "Scale factor:");
1056 for (k = 0; k < s->subband_activity[j]; k++) {
1057 if (k >= s->vq_start_subband[j] || s->bitalloc[j][k] > 0)
1058 av_log(s->avctx, AV_LOG_DEBUG, " %i", s->scale_factor[j][k][0]);
1059 if (k < s->vq_start_subband[j] && s->transition_mode[j][k])
1060 av_log(s->avctx, AV_LOG_DEBUG, " %i(t)", s->scale_factor[j][k][1]);
1061 }
1062 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1063 }
1064 for (j = base_channel; j < s->prim_channels; j++) {
1065 if (s->joint_intensity[j] > 0) {
1066 int source_channel = s->joint_intensity[j] - 1;
1067 av_log(s->avctx, AV_LOG_DEBUG, "Joint scale factor index:\n");
1068 for (k = s->subband_activity[j]; k < s->subband_activity[source_channel]; k++)
1069 av_log(s->avctx, AV_LOG_DEBUG, " %i", s->joint_scale_factor[j][k]);
1070 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1071 }
1072 }
1073 if (!base_channel && s->prim_channels > 2 && s->downmix) {
1074 av_log(s->avctx, AV_LOG_DEBUG, "Downmix coeffs:\n");
1075 for (j = 0; j < s->prim_channels; j++) {
1076 av_log(s->avctx, AV_LOG_DEBUG, "Channel 0, %d = %f\n", j,
1077 dca_downmix_coeffs[s->downmix_coef[j][0]]);
1078 av_log(s->avctx, AV_LOG_DEBUG, "Channel 1, %d = %f\n", j,
1079 dca_downmix_coeffs[s->downmix_coef[j][1]]);
1080 }
1081 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1082 }
1083 for (j = base_channel; j < s->prim_channels; j++)
1084 for (k = s->vq_start_subband[j]; k < s->subband_activity[j]; k++)
1085 av_log(s->avctx, AV_LOG_DEBUG, "VQ index: %i\n", s->high_freq_vq[j][k]);
1086 if (!base_channel && s->lfe) {
1087 int lfe_samples = 2 * s->lfe * (4 + block_index);
1088 int lfe_end_sample = 2 * s->lfe * (4 + block_index + s->subsubframes[s->current_subframe]);
1089
1090 av_log(s->avctx, AV_LOG_DEBUG, "LFE samples:\n");
1091 for (j = lfe_samples; j < lfe_end_sample; j++)
1092 av_log(s->avctx, AV_LOG_DEBUG, " %f", s->lfe_data[j]);
1093 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1094 }
1095#endif
1096
1097 return 0;
1098}
1099
1100static void qmf_32_subbands(DCAContext *s, int chans,
1101 float samples_in[32][8], float *samples_out,
1102 float scale)
1103{
1104 const float *prCoeff;
1105 int i;
1106
1107 int sb_act = s->subband_activity[chans];
1108 int subindex;
1109
1110 scale *= sqrt(1 / 8.0);
1111
1112 /* Select filter */
1113 if (!s->multirate_inter) /* Non-perfect reconstruction */
1114 prCoeff = fir_32bands_nonperfect;
1115 else /* Perfect reconstruction */
1116 prCoeff = fir_32bands_perfect;
1117
1118 for (i = sb_act; i < 32; i++)
1119 s->raXin[i] = 0.0;
1120
1121 /* Reconstructed channel sample index */
1122 for (subindex = 0; subindex < 8; subindex++) {
1123 /* Load in one sample from each subband and clear inactive subbands */
1124 for (i = 0; i < sb_act; i++) {
1125 unsigned sign = (i - 1) & 2;
1126 uint32_t v = AV_RN32A(&samples_in[i][subindex]) ^ sign << 30;
1127 AV_WN32A(&s->raXin[i], v);
1128 }
1129
1130 s->synth.synth_filter_float(&s->imdct,
1131 s->subband_fir_hist[chans],
1132 &s->hist_index[chans],
1133 s->subband_fir_noidea[chans], prCoeff,
1134 samples_out, s->raXin, scale);
1135 samples_out += 32;
1136 }
1137}
1138
1139static void lfe_interpolation_fir(DCAContext *s, int decimation_select,
1140 int num_deci_sample, float *samples_in,
1141 float *samples_out, float scale)
1142{
1143 /* samples_in: An array holding decimated samples.
1144 * Samples in current subframe starts from samples_in[0],
1145 * while samples_in[-1], samples_in[-2], ..., stores samples
1146 * from last subframe as history.
1147 *
1148 * samples_out: An array holding interpolated samples
1149 */
1150
1151 int decifactor;
1152 const float *prCoeff;
1153 int deciindex;
1154
1155 /* Select decimation filter */
1156 if (decimation_select == 1) {
1157 decifactor = 64;
1158 prCoeff = lfe_fir_128;
1159 } else {
1160 decifactor = 32;
1161 prCoeff = lfe_fir_64;
1162 }
1163 /* Interpolation */
1164 for (deciindex = 0; deciindex < num_deci_sample; deciindex++) {
1165 s->dcadsp.lfe_fir(samples_out, samples_in, prCoeff, decifactor, scale);
1166 samples_in++;
1167 samples_out += 2 * decifactor;
1168 }
1169}
1170
1171/* downmixing routines */
1172#define MIX_REAR1(samples, si1, rs, coef) \
1173 samples[i] += samples[si1] * coef[rs][0]; \
1174 samples[i+256] += samples[si1] * coef[rs][1];
1175
1176#define MIX_REAR2(samples, si1, si2, rs, coef) \
1177 samples[i] += samples[si1] * coef[rs][0] + samples[si2] * coef[rs + 1][0]; \
1178 samples[i+256] += samples[si1] * coef[rs][1] + samples[si2] * coef[rs + 1][1];
1179
1180#define MIX_FRONT3(samples, coef) \
1181 t = samples[i + c]; \
1182 u = samples[i + l]; \
1183 v = samples[i + r]; \
1184 samples[i] = t * coef[0][0] + u * coef[1][0] + v * coef[2][0]; \
1185 samples[i+256] = t * coef[0][1] + u * coef[1][1] + v * coef[2][1];
1186
1187#define DOWNMIX_TO_STEREO(op1, op2) \
1188 for (i = 0; i < 256; i++) { \
1189 op1 \
1190 op2 \
1191 }
1192
1193static void dca_downmix(float *samples, int srcfmt,
1194 int downmix_coef[DCA_PRIM_CHANNELS_MAX][2],
1195 const int8_t *channel_mapping)
1196{
1197 int c, l, r, sl, sr, s;
1198 int i;
1199 float t, u, v;
1200 float coef[DCA_PRIM_CHANNELS_MAX][2];
1201
1202 for (i = 0; i < DCA_PRIM_CHANNELS_MAX; i++) {
1203 coef[i][0] = dca_downmix_coeffs[downmix_coef[i][0]];
1204 coef[i][1] = dca_downmix_coeffs[downmix_coef[i][1]];
1205 }
1206
1207 switch (srcfmt) {
1208 case DCA_MONO:
1209 case DCA_CHANNEL:
1210 case DCA_STEREO_TOTAL:
1211 case DCA_STEREO_SUMDIFF:
1212 case DCA_4F2R:
1213 av_log(NULL, 0, "Not implemented!\n");
1214 break;
1215 case DCA_STEREO:
1216 break;
1217 case DCA_3F:
1218 c = channel_mapping[0] * 256;
1219 l = channel_mapping[1] * 256;
1220 r = channel_mapping[2] * 256;
1221 DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef), );
1222 break;
1223 case DCA_2F1R:
1224 s = channel_mapping[2] * 256;
1225 DOWNMIX_TO_STEREO(MIX_REAR1(samples, i + s, 2, coef), );
1226 break;
1227 case DCA_3F1R:
1228 c = channel_mapping[0] * 256;
1229 l = channel_mapping[1] * 256;
1230 r = channel_mapping[2] * 256;
1231 s = channel_mapping[3] * 256;
1232 DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef),
1233 MIX_REAR1(samples, i + s, 3, coef));
1234 break;
1235 case DCA_2F2R:
1236 sl = channel_mapping[2] * 256;
1237 sr = channel_mapping[3] * 256;
1238 DOWNMIX_TO_STEREO(MIX_REAR2(samples, i + sl, i + sr, 2, coef), );
1239 break;
1240 case DCA_3F2R:
1241 c = channel_mapping[0] * 256;
1242 l = channel_mapping[1] * 256;
1243 r = channel_mapping[2] * 256;
1244 sl = channel_mapping[3] * 256;
1245 sr = channel_mapping[4] * 256;
1246 DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef),
1247 MIX_REAR2(samples, i + sl, i + sr, 3, coef));
1248 break;
1249 }
1250}
1251
1252
1253#ifndef decode_blockcodes
1254/* Very compact version of the block code decoder that does not use table
1255 * look-up but is slightly slower */
1256static int decode_blockcode(int code, int levels, int *values)
1257{
1258 int i;
1259 int offset = (levels - 1) >> 1;
1260
1261 for (i = 0; i < 4; i++) {
1262 int div = FASTDIV(code, levels);
1263 values[i] = code - offset - div * levels;
1264 code = div;
1265 }
1266
1267 return code;
1268}
1269
1270static int decode_blockcodes(int code1, int code2, int levels, int *values)
1271{
1272 return decode_blockcode(code1, levels, values) |
1273 decode_blockcode(code2, levels, values + 4);
1274}
1275#endif
1276
1277static const uint8_t abits_sizes[7] = { 7, 10, 12, 13, 15, 17, 19 };
1278static const uint8_t abits_levels[7] = { 3, 5, 7, 9, 13, 17, 25 };
1279
1280#ifndef int8x8_fmul_int32
1281static inline void int8x8_fmul_int32(float *dst, const int8_t *src, int scale)
1282{
1283 float fscale = scale / 16.0;
1284 int i;
1285 for (i = 0; i < 8; i++)
1286 dst[i] = src[i] * fscale;
1287}
1288#endif
1289
1290static int dca_subsubframe(DCAContext *s, int base_channel, int block_index)
1291{
1292 int k, l;
1293 int subsubframe = s->current_subsubframe;
1294
1295 const float *quant_step_table;
1296
1297 /* FIXME */
1298 float (*subband_samples)[DCA_SUBBANDS][8] = s->subband_samples[block_index];
1299 LOCAL_ALIGNED_16(int, block, [8]);
1300
1301 /*
1302 * Audio data
1303 */
1304
1305 /* Select quantization step size table */
1306 if (s->bit_rate_index == 0x1f)
1307 quant_step_table = lossless_quant_d;
1308 else
1309 quant_step_table = lossy_quant_d;
1310
1311 for (k = base_channel; k < s->prim_channels; k++) {
1312 if (get_bits_left(&s->gb) < 0)
1313 return AVERROR_INVALIDDATA;
1314
1315 for (l = 0; l < s->vq_start_subband[k]; l++) {
1316 int m;
1317
1318 /* Select the mid-tread linear quantizer */
1319 int abits = s->bitalloc[k][l];
1320
1321 float quant_step_size = quant_step_table[abits];
1322
1323 /*
1324 * Determine quantization index code book and its type
1325 */
1326
1327 /* Select quantization index code book */
1328 int sel = s->quant_index_huffman[k][abits];
1329
1330 /*
1331 * Extract bits from the bit stream
1332 */
1333 if (!abits) {
1334 memset(subband_samples[k][l], 0, 8 * sizeof(subband_samples[0][0][0]));
1335 } else {
1336 /* Deal with transients */
1337 int sfi = s->transition_mode[k][l] && subsubframe >= s->transition_mode[k][l];
1338 float rscale = quant_step_size * s->scale_factor[k][l][sfi] *
1339 s->scalefactor_adj[k][sel];
1340
1341 if (abits >= 11 || !dca_smpl_bitalloc[abits].vlc[sel].table) {
1342 if (abits <= 7) {
1343 /* Block code */
1344 int block_code1, block_code2, size, levels, err;
1345
1346 size = abits_sizes[abits - 1];
1347 levels = abits_levels[abits - 1];
1348
1349 block_code1 = get_bits(&s->gb, size);
1350 block_code2 = get_bits(&s->gb, size);
1351 err = decode_blockcodes(block_code1, block_code2,
1352 levels, block);
1353 if (err) {
1354 av_log(s->avctx, AV_LOG_ERROR,
1355 "ERROR: block code look-up failed\n");
1356 return AVERROR_INVALIDDATA;
1357 }
1358 } else {
1359 /* no coding */
1360 for (m = 0; m < 8; m++)
1361 block[m] = get_sbits(&s->gb, abits - 3);
1362 }
1363 } else {
1364 /* Huffman coded */
1365 for (m = 0; m < 8; m++)
1366 block[m] = get_bitalloc(&s->gb,
1367 &dca_smpl_bitalloc[abits], sel);
1368 }
1369
1370 s->fmt_conv.int32_to_float_fmul_scalar(subband_samples[k][l],
1371 block, rscale, 8);
1372 }
1373
1374 /*
1375 * Inverse ADPCM if in prediction mode
1376 */
1377 if (s->prediction_mode[k][l]) {
1378 int n;
1379 for (m = 0; m < 8; m++) {
1380 for (n = 1; n <= 4; n++)
1381 if (m >= n)
1382 subband_samples[k][l][m] +=
1383 (adpcm_vb[s->prediction_vq[k][l]][n - 1] *
1384 subband_samples[k][l][m - n] / 8192);
1385 else if (s->predictor_history)
1386 subband_samples[k][l][m] +=
1387 (adpcm_vb[s->prediction_vq[k][l]][n - 1] *
1388 s->subband_samples_hist[k][l][m - n + 4] / 8192);
1389 }
1390 }
1391 }
1392
1393 /*
1394 * Decode VQ encoded high frequencies
1395 */
1396 for (l = s->vq_start_subband[k]; l < s->subband_activity[k]; l++) {
1397 /* 1 vector -> 32 samples but we only need the 8 samples
1398 * for this subsubframe. */
1399 int hfvq = s->high_freq_vq[k][l];
1400
1401 if (!s->debug_flag & 0x01) {
1402 av_log(s->avctx, AV_LOG_DEBUG,
1403 "Stream with high frequencies VQ coding\n");
1404 s->debug_flag |= 0x01;
1405 }
1406
1407 int8x8_fmul_int32(subband_samples[k][l],
1408 &high_freq_vq[hfvq][subsubframe * 8],
1409 s->scale_factor[k][l][0]);
1410 }
1411 }
1412
1413 /* Check for DSYNC after subsubframe */
1414 if (s->aspf || subsubframe == s->subsubframes[s->current_subframe] - 1) {
1415 if (0xFFFF == get_bits(&s->gb, 16)) { /* 0xFFFF */
1416#ifdef TRACE
1417 av_log(s->avctx, AV_LOG_DEBUG, "Got subframe DSYNC\n");
1418#endif
1419 } else {
1420 av_log(s->avctx, AV_LOG_ERROR, "Didn't get subframe DSYNC\n");
1421 }
1422 }
1423
1424 /* Backup predictor history for adpcm */
1425 for (k = base_channel; k < s->prim_channels; k++)
1426 for (l = 0; l < s->vq_start_subband[k]; l++)
1427 memcpy(s->subband_samples_hist[k][l],
1428 &subband_samples[k][l][4],
1429 4 * sizeof(subband_samples[0][0][0]));
1430
1431 return 0;
1432}
1433
1434static int dca_filter_channels(DCAContext *s, int block_index)
1435{
1436 float (*subband_samples)[DCA_SUBBANDS][8] = s->subband_samples[block_index];
1437 int k;
1438
1439 /* 32 subbands QMF */
1440 for (k = 0; k < s->prim_channels; k++) {
1441/* static float pcm_to_double[8] = { 32768.0, 32768.0, 524288.0, 524288.0,
1442 0, 8388608.0, 8388608.0 };*/
1443 qmf_32_subbands(s, k, subband_samples[k],
1444 &s->samples[256 * s->channel_order_tab[k]],
1445 M_SQRT1_2 * s->scale_bias /* pcm_to_double[s->source_pcm_res] */);
1446 }
1447
1448 /* Down mixing */
1449 if (s->avctx->request_channels == 2 && s->prim_channels > 2) {
1450 dca_downmix(s->samples, s->amode, s->downmix_coef, s->channel_order_tab);
1451 }
1452
1453 /* Generate LFE samples for this subsubframe FIXME!!! */
1454 if (s->output & DCA_LFE) {
1455 lfe_interpolation_fir(s, s->lfe, 2 * s->lfe,
1456 s->lfe_data + 2 * s->lfe * (block_index + 4),
1457 &s->samples[256 * s->lfe_index],
1458 (1.0 / 256.0) * s->scale_bias);
1459 /* Outputs 20bits pcm samples */
1460 }
1461
1462 return 0;
1463}
1464
1465
1466static int dca_subframe_footer(DCAContext *s, int base_channel)
1467{
1468 int aux_data_count = 0, i;
1469
1470 /*
1471 * Unpack optional information
1472 */
1473
1474 /* presumably optional information only appears in the core? */
1475 if (!base_channel) {
1476 if (s->timestamp)
1477 skip_bits_long(&s->gb, 32);
1478
1479 if (s->aux_data)
1480 aux_data_count = get_bits(&s->gb, 6);
1481
1482 for (i = 0; i < aux_data_count; i++)
1483 get_bits(&s->gb, 8);
1484
1485 if (s->crc_present && (s->downmix || s->dynrange))
1486 get_bits(&s->gb, 16);
1487 }
1488
1489 return 0;
1490}
1491
1492/**
1493 * Decode a dca frame block
1494 *
1495 * @param s pointer to the DCAContext
1496 */
1497
1498static int dca_decode_block(DCAContext *s, int base_channel, int block_index)
1499{
1500 int ret;
1501
1502 /* Sanity check */
1503 if (s->current_subframe >= s->subframes) {
1504 av_log(s->avctx, AV_LOG_DEBUG, "check failed: %i>%i",
1505 s->current_subframe, s->subframes);
1506 return AVERROR_INVALIDDATA;
1507 }
1508
1509 if (!s->current_subsubframe) {
1510#ifdef TRACE
1511 av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subframe_header\n");
1512#endif
1513 /* Read subframe header */
1514 if ((ret = dca_subframe_header(s, base_channel, block_index)))
1515 return ret;
1516 }
1517
1518 /* Read subsubframe */
1519#ifdef TRACE
1520 av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subsubframe\n");
1521#endif
1522 if ((ret = dca_subsubframe(s, base_channel, block_index)))
1523 return ret;
1524
1525 /* Update state */
1526 s->current_subsubframe++;
1527 if (s->current_subsubframe >= s->subsubframes[s->current_subframe]) {
1528 s->current_subsubframe = 0;
1529 s->current_subframe++;
1530 }
1531 if (s->current_subframe >= s->subframes) {
1532#ifdef TRACE
1533 av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subframe_footer\n");
1534#endif
1535 /* Read subframe footer */
1536 if ((ret = dca_subframe_footer(s, base_channel)))
1537 return ret;
1538 }
1539
1540 return 0;
1541}
1542
1543/**
1544 * Return the number of channels in an ExSS speaker mask (HD)
1545 */
1546static int dca_exss_mask2count(int mask)
1547{30{
1548 /* count bits that mean speaker pairs twice */31 0, 8000, 16000, 32000, 0, 0, 11025, 22050, 44100, 0, 0,
1549 return av_popcount(mask) +32 12000, 24000, 48000, 96000, 192000
1550 av_popcount(mask & (DCA_EXSS_CENTER_LEFT_RIGHT |
1551 DCA_EXSS_FRONT_LEFT_RIGHT |
1552 DCA_EXSS_FRONT_HIGH_LEFT_RIGHT |
1553 DCA_EXSS_WIDE_LEFT_RIGHT |
1554 DCA_EXSS_SIDE_LEFT_RIGHT |
1555 DCA_EXSS_SIDE_HIGH_LEFT_RIGHT |
1556 DCA_EXSS_SIDE_REAR_LEFT_RIGHT |
1557 DCA_EXSS_REAR_LEFT_RIGHT |
1558 DCA_EXSS_REAR_HIGH_LEFT_RIGHT));
1559}
1560
1561/**
1562 * Skip mixing coefficients of a single mix out configuration (HD)
1563 */
1564static void dca_exss_skip_mix_coeffs(GetBitContext *gb, int channels, int out_ch)
1565{
1566 int i;
1567
1568 for (i = 0; i < channels; i++) {
1569 int mix_map_mask = get_bits(gb, out_ch);
1570 int num_coeffs = av_popcount(mix_map_mask);
1571 skip_bits_long(gb, num_coeffs * 6);
1572 }
1573}
1574
1575/**
1576 * Parse extension substream asset header (HD)
1577 */
1578static int dca_exss_parse_asset_header(DCAContext *s)
1579{
1580 int header_pos = get_bits_count(&s->gb);
1581 int header_size;
1582 int channels = 0;
1583 int embedded_stereo = 0;
1584 int embedded_6ch = 0;
1585 int drc_code_present;
1586 int av_uninit(extensions_mask);
1587 int i, j;
1588
1589 if (get_bits_left(&s->gb) < 16)
1590 return -1;
1591
1592 /* We will parse just enough to get to the extensions bitmask with which
1593 * we can set the profile value. */
1594
1595 header_size = get_bits(&s->gb, 9) + 1;
1596 skip_bits(&s->gb, 3); // asset index
1597
1598 if (s->static_fields) {
1599 if (get_bits1(&s->gb))
1600 skip_bits(&s->gb, 4); // asset type descriptor
1601 if (get_bits1(&s->gb))
1602 skip_bits_long(&s->gb, 24); // language descriptor
1603
1604 if (get_bits1(&s->gb)) {
1605 /* How can one fit 1024 bytes of text here if the maximum value
1606 * for the asset header size field above was 512 bytes? */
1607 int text_length = get_bits(&s->gb, 10) + 1;
1608 if (get_bits_left(&s->gb) < text_length * 8)
1609 return -1;
1610 skip_bits_long(&s->gb, text_length * 8); // info text
1611 }
1612
1613 skip_bits(&s->gb, 5); // bit resolution - 1
1614 skip_bits(&s->gb, 4); // max sample rate code
1615 channels = get_bits(&s->gb, 8) + 1;
1616
1617 if (get_bits1(&s->gb)) { // 1-to-1 channels to speakers
1618 int spkr_remap_sets;
1619 int spkr_mask_size = 16;
1620 int num_spkrs[7];
1621
1622 if (channels > 2)
1623 embedded_stereo = get_bits1(&s->gb);
1624 if (channels > 6)
1625 embedded_6ch = get_bits1(&s->gb);
1626
1627 if (get_bits1(&s->gb)) {
1628 spkr_mask_size = (get_bits(&s->gb, 2) + 1) << 2;
1629 skip_bits(&s->gb, spkr_mask_size); // spkr activity mask
1630 }
1631
1632 spkr_remap_sets = get_bits(&s->gb, 3);
1633
1634 for (i = 0; i < spkr_remap_sets; i++) {
1635 /* std layout mask for each remap set */
1636 num_spkrs[i] = dca_exss_mask2count(get_bits(&s->gb, spkr_mask_size));
1637 }
1638
1639 for (i = 0; i < spkr_remap_sets; i++) {
1640 int num_dec_ch_remaps = get_bits(&s->gb, 5) + 1;
1641 if (get_bits_left(&s->gb) < 0)
1642 return -1;
1643
1644 for (j = 0; j < num_spkrs[i]; j++) {
1645 int remap_dec_ch_mask = get_bits_long(&s->gb, num_dec_ch_remaps);
1646 int num_dec_ch = av_popcount(remap_dec_ch_mask);
1647 skip_bits_long(&s->gb, num_dec_ch * 5); // remap codes
1648 }
1649 }
1650
1651 } else {
1652 skip_bits(&s->gb, 3); // representation type
1653 }
1654 }
1655
1656 drc_code_present = get_bits1(&s->gb);
1657 if (drc_code_present)
1658 get_bits(&s->gb, 8); // drc code
1659
1660 if (get_bits1(&s->gb))
1661 skip_bits(&s->gb, 5); // dialog normalization code
1662
1663 if (drc_code_present && embedded_stereo)
1664 get_bits(&s->gb, 8); // drc stereo code
1665
1666 if (s->mix_metadata && get_bits1(&s->gb)) {
1667 skip_bits(&s->gb, 1); // external mix
1668 skip_bits(&s->gb, 6); // post mix gain code
1669
1670 if (get_bits(&s->gb, 2) != 3) // mixer drc code
1671 skip_bits(&s->gb, 3); // drc limit
1672 else
1673 skip_bits(&s->gb, 8); // custom drc code
1674
1675 if (get_bits1(&s->gb)) // channel specific scaling
1676 for (i = 0; i < s->num_mix_configs; i++)
1677 skip_bits_long(&s->gb, s->mix_config_num_ch[i] * 6); // scale codes
1678 else
1679 skip_bits_long(&s->gb, s->num_mix_configs * 6); // scale codes
1680
1681 for (i = 0; i < s->num_mix_configs; i++) {
1682 if (get_bits_left(&s->gb) < 0)
1683 return -1;
1684 dca_exss_skip_mix_coeffs(&s->gb, channels, s->mix_config_num_ch[i]);
1685 if (embedded_6ch)
1686 dca_exss_skip_mix_coeffs(&s->gb, 6, s->mix_config_num_ch[i]);
1687 if (embedded_stereo)
1688 dca_exss_skip_mix_coeffs(&s->gb, 2, s->mix_config_num_ch[i]);
1689 }
1690 }
1691
1692 switch (get_bits(&s->gb, 2)) {
1693 case 0: extensions_mask = get_bits(&s->gb, 12); break;
1694 case 1: extensions_mask = DCA_EXT_EXSS_XLL; break;
1695 case 2: extensions_mask = DCA_EXT_EXSS_LBR; break;
1696 case 3: extensions_mask = 0; /* aux coding */ break;
1697 }
1698
1699 /* not parsed further, we were only interested in the extensions mask */
1700
1701 if (get_bits_left(&s->gb) < 0)
1702 return -1;
1703
1704 if (get_bits_count(&s->gb) - header_pos > header_size * 8) {
1705 av_log(s->avctx, AV_LOG_WARNING, "Asset header size mismatch.\n");
1706 return -1;
1707 }
1708 skip_bits_long(&s->gb, header_pos + header_size * 8 - get_bits_count(&s->gb));
1709
1710 if (extensions_mask & DCA_EXT_EXSS_XLL)
1711 s->profile = FF_PROFILE_DTS_HD_MA;
1712 else if (extensions_mask & (DCA_EXT_EXSS_XBR | DCA_EXT_EXSS_X96 |
1713 DCA_EXT_EXSS_XXCH))
1714 s->profile = FF_PROFILE_DTS_HD_HRA;
1715
1716 if (!(extensions_mask & DCA_EXT_CORE))
1717 av_log(s->avctx, AV_LOG_WARNING, "DTS core detection mismatch.\n");
1718 if ((extensions_mask & DCA_CORE_EXTS) != s->core_ext_mask)
1719 av_log(s->avctx, AV_LOG_WARNING,
1720 "DTS extensions detection mismatch (%d, %d)\n",
1721 extensions_mask & DCA_CORE_EXTS, s->core_ext_mask);
1722
1723 return 0;
1724}
1725
1726static int dca_xbr_parse_frame(DCAContext *s)
1727{
1728 int scale_table_high[DCA_CHSET_CHANS_MAX][DCA_SUBBANDS][2];
1729 int active_bands[DCA_CHSETS_MAX][DCA_CHSET_CHANS_MAX];
1730 int abits_high[DCA_CHSET_CHANS_MAX][DCA_SUBBANDS];
1731 int anctemp[DCA_CHSET_CHANS_MAX];
1732 int chset_fsize[DCA_CHSETS_MAX];
1733 int n_xbr_ch[DCA_CHSETS_MAX];
1734 int hdr_size, num_chsets, xbr_tmode, hdr_pos;
1735 int i, j, k, l, chset, chan_base;
1736
1737 av_log(s->avctx, AV_LOG_DEBUG, "DTS-XBR: decoding XBR extension\n");
1738
1739 /* get bit position of sync header */
1740 hdr_pos = get_bits_count(&s->gb) - 32;
1741
1742 hdr_size = get_bits(&s->gb, 6) + 1;
1743 num_chsets = get_bits(&s->gb, 2) + 1;
1744
1745 for(i = 0; i < num_chsets; i++)
1746 chset_fsize[i] = get_bits(&s->gb, 14) + 1;
1747
1748 xbr_tmode = get_bits1(&s->gb);
1749
1750 for(i = 0; i < num_chsets; i++) {
1751 n_xbr_ch[i] = get_bits(&s->gb, 3) + 1;
1752 k = get_bits(&s->gb, 2) + 5;
1753 for(j = 0; j < n_xbr_ch[i]; j++)
1754 active_bands[i][j] = get_bits(&s->gb, k) + 1;
1755 }
1756
1757 /* skip to the end of the header */
1758 i = get_bits_count(&s->gb);
1759 if(hdr_pos + hdr_size * 8 > i)
1760 skip_bits_long(&s->gb, hdr_pos + hdr_size * 8 - i);
1761
1762 /* loop over the channel data sets */
1763 /* only decode as many channels as we've decoded base data for */
1764 for(chset = 0, chan_base = 0;
1765 chset < num_chsets && chan_base + n_xbr_ch[chset] <= s->prim_channels;
1766 chan_base += n_xbr_ch[chset++]) {
1767 int start_posn = get_bits_count(&s->gb);
1768 int subsubframe = 0;
1769 int subframe = 0;
1770
1771 /* loop over subframes */
1772 for (k = 0; k < (s->sample_blocks / 8); k++) {
1773 /* parse header if we're on first subsubframe of a block */
1774 if(subsubframe == 0) {
1775 /* Parse subframe header */
1776 for(i = 0; i < n_xbr_ch[chset]; i++) {
1777 anctemp[i] = get_bits(&s->gb, 2) + 2;
1778 }
1779
1780 for(i = 0; i < n_xbr_ch[chset]; i++) {
1781 get_array(&s->gb, abits_high[i], active_bands[chset][i], anctemp[i]);
1782 }
1783
1784 for(i = 0; i < n_xbr_ch[chset]; i++) {
1785 anctemp[i] = get_bits(&s->gb, 3);
1786 if(anctemp[i] < 1) {
1787 av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: SYNC ERROR\n");
1788 return AVERROR_INVALIDDATA;
1789 }
1790 }
1791
1792 /* generate scale factors */
1793 for(i = 0; i < n_xbr_ch[chset]; i++) {
1794 const uint32_t *scale_table;
1795 int nbits;
1796
1797 if (s->scalefactor_huffman[chan_base+i] == 6) {
1798 scale_table = scale_factor_quant7;
1799 } else {
1800 scale_table = scale_factor_quant6;
1801 }
1802
1803 nbits = anctemp[i];
1804
1805 for(j = 0; j < active_bands[chset][i]; j++) {
1806 if(abits_high[i][j] > 0) {
1807 scale_table_high[i][j][0] =
1808 scale_table[get_bits(&s->gb, nbits)];
1809
1810 if(xbr_tmode && s->transition_mode[i][j]) {
1811 scale_table_high[i][j][1] =
1812 scale_table[get_bits(&s->gb, nbits)];
1813 }
1814 }
1815 }
1816 }
1817 }
1818
1819 /* decode audio array for this block */
1820 for(i = 0; i < n_xbr_ch[chset]; i++) {
1821 for(j = 0; j < active_bands[chset][i]; j++) {
1822 const int xbr_abits = abits_high[i][j];
1823 const float quant_step_size = lossless_quant_d[xbr_abits];
1824 const int sfi = xbr_tmode && s->transition_mode[i][j] && subsubframe >= s->transition_mode[i][j];
1825 const float rscale = quant_step_size * scale_table_high[i][j][sfi];
1826 float *subband_samples = s->subband_samples[k][chan_base+i][j];
1827 int block[8];
1828
1829 if(xbr_abits <= 0)
1830 continue;
1831
1832 if(xbr_abits > 7) {
1833 get_array(&s->gb, block, 8, xbr_abits - 3);
1834 } else {
1835 int block_code1, block_code2, size, levels, err;
1836
1837 size = abits_sizes[xbr_abits - 1];
1838 levels = abits_levels[xbr_abits - 1];
1839
1840 block_code1 = get_bits(&s->gb, size);
1841 block_code2 = get_bits(&s->gb, size);
1842 err = decode_blockcodes(block_code1, block_code2,
1843 levels, block);
1844 if (err) {
1845 av_log(s->avctx, AV_LOG_ERROR,
1846 "ERROR: DTS-XBR: block code look-up failed\n");
1847 return AVERROR_INVALIDDATA;
1848 }
1849 }
1850
1851 /* scale & sum into subband */
1852 for(l = 0; l < 8; l++)
1853 subband_samples[l] += (float)block[l] * rscale;
1854 }
1855 }
1856
1857 /* check DSYNC marker */
1858 if(s->aspf || subsubframe == s->subsubframes[subframe] - 1) {
1859 if(get_bits(&s->gb, 16) != 0xffff) {
1860 av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: Didn't get subframe DSYNC\n");
1861 return AVERROR_INVALIDDATA;
1862 }
1863 }
1864
1865 /* advance sub-sub-frame index */
1866 if(++subsubframe >= s->subsubframes[subframe]) {
1867 subsubframe = 0;
1868 subframe++;
1869 }
1870 }
1871
1872 /* skip to next channel set */
1873 i = get_bits_count(&s->gb);
1874 if(start_posn + chset_fsize[chset] * 8 != i) {
1875 j = start_posn + chset_fsize[chset] * 8 - i;
1876 if(j < 0 || j >= 8)
1877 av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: end of channel set,"
1878 " skipping further than expected (%d bits)\n", j);
1879 skip_bits_long(&s->gb, j);
1880 }
1881 }
1882
1883 return 0;
1884}
1885
1886/* parse initial header for XXCH and dump details */
1887static int dca_xxch_decode_frame(DCAContext *s)
1888{
1889 int hdr_size, chhdr_crc, spkmsk_bits, num_chsets, core_spk, hdr_pos;
1890 int i, chset, base_channel, chstart, fsize[8];
1891
1892 /* assume header word has already been parsed */
1893 hdr_pos = get_bits_count(&s->gb) - 32;
1894 hdr_size = get_bits(&s->gb, 6) + 1;
1895 chhdr_crc = get_bits1(&s->gb);
1896 spkmsk_bits = get_bits(&s->gb, 5) + 1;
1897 num_chsets = get_bits(&s->gb, 2) + 1;
1898
1899 for (i = 0; i < num_chsets; i++)
1900 fsize[i] = get_bits(&s->gb, 14) + 1;
1901
1902 core_spk = get_bits(&s->gb, spkmsk_bits);
1903 s->xxch_core_spkmask = core_spk;
1904 s->xxch_nbits_spk_mask = spkmsk_bits;
1905 s->xxch_downmix = 0;
1906 s->xxch_dmix_embedded = 0;
1907
1908 /* skip to the end of the header */
1909 i = get_bits_count(&s->gb);
1910 if (hdr_pos + hdr_size * 8 > i)
1911 skip_bits_long(&s->gb, hdr_pos + hdr_size * 8 - i);
1912
1913 for (chset = 0; chset < num_chsets; chset++) {
1914 chstart = get_bits_count(&s->gb);
1915 base_channel = s->prim_channels;
1916 s->xxch_chset = chset;
1917
1918 /* XXCH and Core headers differ, see 6.4.2 "XXCH Channel Set Header" vs.
1919 5.3.2 "Primary Audio Coding Header", DTS Spec 1.3.1 */
1920 dca_parse_audio_coding_header(s, base_channel, 1);
1921
1922 /* decode channel data */
1923 for (i = 0; i < (s->sample_blocks / 8); i++) {
1924 if (dca_decode_block(s, base_channel, i)) {
1925 av_log(s->avctx, AV_LOG_ERROR,
1926 "Error decoding DTS-XXCH extension\n");
1927 continue;
1928 }
1929 }
1930
1931 /* skip to end of this section */
1932 i = get_bits_count(&s->gb);
1933 if (chstart + fsize[chset] * 8 > i)
1934 skip_bits_long(&s->gb, chstart + fsize[chset] * 8 - i);
1935 }
1936 s->xxch_chset = num_chsets;
1937
1938 return 0;
1939}
1940
1941/**
1942 * Parse extension substream header (HD)
1943 */
1944static void dca_exss_parse_header(DCAContext *s)
1945{
1946 int asset_size[8];
1947 int ss_index;
1948 int blownup;
1949 int num_audiop = 1;
1950 int num_assets = 1;
1951 int active_ss_mask[8];
1952 int i, j;
1953 int start_posn;
1954 int hdrsize;
1955 uint32_t mkr;
1956
1957 if (get_bits_left(&s->gb) < 52)
1958 return;
1959
1960 start_posn = get_bits_count(&s->gb) - 32;
1961
1962 skip_bits(&s->gb, 8); // user data
1963 ss_index = get_bits(&s->gb, 2);
1964
1965 blownup = get_bits1(&s->gb);
1966 hdrsize = get_bits(&s->gb, 8 + 4 * blownup) + 1; // header_size
1967 skip_bits(&s->gb, 16 + 4 * blownup); // hd_size
1968
1969 s->static_fields = get_bits1(&s->gb);
1970 if (s->static_fields) {
1971 skip_bits(&s->gb, 2); // reference clock code
1972 skip_bits(&s->gb, 3); // frame duration code
1973
1974 if (get_bits1(&s->gb))
1975 skip_bits_long(&s->gb, 36); // timestamp
1976
1977 /* a single stream can contain multiple audio assets that can be
1978 * combined to form multiple audio presentations */
1979
1980 num_audiop = get_bits(&s->gb, 3) + 1;
1981 if (num_audiop > 1) {
1982 av_log_ask_for_sample(s->avctx, "Multiple DTS-HD audio presentations.");
1983 /* ignore such streams for now */
1984 return;
1985 }
1986
1987 num_assets = get_bits(&s->gb, 3) + 1;
1988 if (num_assets > 1) {
1989 av_log_ask_for_sample(s->avctx, "Multiple DTS-HD audio assets.");
1990 /* ignore such streams for now */
1991 return;
1992 }
1993
1994 for (i = 0; i < num_audiop; i++)
1995 active_ss_mask[i] = get_bits(&s->gb, ss_index + 1);
1996
1997 for (i = 0; i < num_audiop; i++)
1998 for (j = 0; j <= ss_index; j++)
1999 if (active_ss_mask[i] & (1 << j))
2000 skip_bits(&s->gb, 8); // active asset mask
2001
2002 s->mix_metadata = get_bits1(&s->gb);
2003 if (s->mix_metadata) {
2004 int mix_out_mask_size;
2005
2006 skip_bits(&s->gb, 2); // adjustment level
2007 mix_out_mask_size = (get_bits(&s->gb, 2) + 1) << 2;
2008 s->num_mix_configs = get_bits(&s->gb, 2) + 1;
2009
2010 for (i = 0; i < s->num_mix_configs; i++) {
2011 int mix_out_mask = get_bits(&s->gb, mix_out_mask_size);
2012 s->mix_config_num_ch[i] = dca_exss_mask2count(mix_out_mask);
2013 }
2014 }
2015 }
2016
2017 for (i = 0; i < num_assets; i++)
2018 asset_size[i] = get_bits_long(&s->gb, 16 + 4 * blownup);
2019
2020 for (i = 0; i < num_assets; i++) {
2021 if (dca_exss_parse_asset_header(s))
2022 return;
2023 }
2024
2025 /* not parsed further, we were only interested in the extensions mask
2026 * from the asset header */
2027
2028 if (num_assets > 0) {
2029 j = get_bits_count(&s->gb);
2030 if (start_posn + hdrsize * 8 > j)
2031 skip_bits_long(&s->gb, start_posn + hdrsize * 8 - j);
2032
2033 for (i = 0; i < num_assets; i++) {
2034 start_posn = get_bits_count(&s->gb);
2035 mkr = get_bits_long(&s->gb, 32);
2036
2037 /* parse extensions that we know about */
2038 if (mkr == 0x655e315e) {
2039 dca_xbr_parse_frame(s);
2040 } else if (mkr == 0x47004a03) {
2041 dca_xxch_decode_frame(s);
2042 s->core_ext_mask |= DCA_EXT_XXCH; /* xxx use for chan reordering */
2043 } else {
2044 av_log(s->avctx, AV_LOG_DEBUG,
2045 "DTS-ExSS: unknown marker = 0x%08x\n", mkr);
2046 }
2047
2048 /* skip to end of block */
2049 j = get_bits_count(&s->gb);
2050 if (start_posn + asset_size[i] * 8 > j)
2051 skip_bits_long(&s->gb, start_posn + asset_size[i] * 8 - j);
2052 }
2053 }
2054}
2055
2056/**
2057 * Main frame decoding function
2058 * FIXME add arguments
2059 */
2060static int dca_decode_frame(AVCodecContext *avctx, void *data,
2061 int *got_frame_ptr, AVPacket *avpkt)
2062{
2063 const uint8_t *buf = avpkt->data;
2064 int buf_size = avpkt->size;
2065 int channel_mask;
2066 int channel_layout;
2067 int lfe_samples;
2068 int num_core_channels = 0;
2069 int i, ret;
2070 float *samples_flt;
2071 float *src_chan;
2072 float *dst_chan;
2073 int16_t *samples_s16;
2074 DCAContext *s = avctx->priv_data;
2075 int core_ss_end;
2076 int channels;
2077 float scale;
2078 int achan;
2079 int chset;
2080 int mask;
2081 int lavc;
2082 int posn;
2083 int j, k;
2084 int ch;
2085 int endch;
2086
2087 s->xch_present = 0;
2088
2089 s->dca_buffer_size = ff_dca_convert_bitstream(buf, buf_size, s->dca_buffer,
2090 DCA_MAX_FRAME_SIZE + DCA_MAX_EXSS_HEADER_SIZE);
2091 if (s->dca_buffer_size == AVERROR_INVALIDDATA) {
2092 av_log(avctx, AV_LOG_ERROR, "Not a valid DCA frame\n");
2093 return AVERROR_INVALIDDATA;
2094 }
2095
2096 init_get_bits(&s->gb, s->dca_buffer, s->dca_buffer_size * 8);
2097 if ((ret = dca_parse_frame_header(s)) < 0) {
2098 //seems like the frame is corrupt, try with the next one
2099 return ret;
2100 }
2101 //set AVCodec values with parsed data
2102 avctx->sample_rate = s->sample_rate;
2103 avctx->bit_rate = s->bit_rate;
2104
2105 s->profile = FF_PROFILE_DTS;
2106
2107 for (i = 0; i < (s->sample_blocks / 8); i++) {
2108 if ((ret = dca_decode_block(s, 0, i))) {
2109 av_log(avctx, AV_LOG_ERROR, "error decoding block\n");
2110 return ret;
2111 }
2112 }
2113
2114 /* record number of core channels incase less than max channels are requested */
2115 num_core_channels = s->prim_channels;
2116
2117 if (s->ext_coding)
2118 s->core_ext_mask = dca_ext_audio_descr_mask[s->ext_descr];
2119 else
2120 s->core_ext_mask = 0;
2121
2122 core_ss_end = FFMIN(s->frame_size, s->dca_buffer_size) * 8;
2123
2124 /* only scan for extensions if ext_descr was unknown or indicated a
2125 * supported XCh extension */
2126 if (s->core_ext_mask < 0 || s->core_ext_mask & (DCA_EXT_XCH | DCA_EXT_XXCH)) {
2127
2128 /* if ext_descr was unknown, clear s->core_ext_mask so that the
2129 * extensions scan can fill it up */
2130 s->core_ext_mask = FFMAX(s->core_ext_mask, 0);
2131
2132 /* extensions start at 32-bit boundaries into bitstream */
2133 skip_bits_long(&s->gb, (-get_bits_count(&s->gb)) & 31);
2134
2135 while (core_ss_end - get_bits_count(&s->gb) >= 32) {
2136 uint32_t bits = get_bits_long(&s->gb, 32);
2137
2138 switch (bits) {
2139 case 0x5a5a5a5a: {
2140 int ext_amode, xch_fsize;
2141
2142 s->xch_base_channel = s->prim_channels;
2143
2144 /* validate sync word using XCHFSIZE field */
2145 xch_fsize = show_bits(&s->gb, 10);
2146 if ((s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + xch_fsize) &&
2147 (s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + xch_fsize + 1))
2148 continue;
2149
2150 /* skip length-to-end-of-frame field for the moment */
2151 skip_bits(&s->gb, 10);
2152
2153 s->core_ext_mask |= DCA_EXT_XCH;
2154
2155 /* extension amode(number of channels in extension) should be 1 */
2156 /* AFAIK XCh is not used for more channels */
2157 if ((ext_amode = get_bits(&s->gb, 4)) != 1) {
2158 av_log(avctx, AV_LOG_ERROR, "XCh extension amode %d not"
2159 " supported!\n", ext_amode);
2160 continue;
2161 }
2162
2163 /* much like core primary audio coding header */
2164 dca_parse_audio_coding_header(s, s->xch_base_channel, 0);
2165
2166 for (i = 0; i < (s->sample_blocks / 8); i++)
2167 if ((ret = dca_decode_block(s, s->xch_base_channel, i))) {
2168 av_log(avctx, AV_LOG_ERROR, "error decoding XCh extension\n");
2169 continue;
2170 }
2171
2172 s->xch_present = 1;
2173 break;
2174 }
2175 case 0x47004a03:
2176 /* XXCh: extended channels */
2177 /* usually found either in core or HD part in DTS-HD HRA streams,
2178 * but not in DTS-ES which contains XCh extensions instead */
2179 s->core_ext_mask |= DCA_EXT_XXCH;
2180 dca_xxch_decode_frame(s);
2181 break;
2182
2183 case 0x1d95f262: {
2184 int fsize96 = show_bits(&s->gb, 12) + 1;
2185 if (s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + fsize96)
2186 continue;
2187
2188 av_log(avctx, AV_LOG_DEBUG, "X96 extension found at %d bits\n",
2189 get_bits_count(&s->gb));
2190 skip_bits(&s->gb, 12);
2191 av_log(avctx, AV_LOG_DEBUG, "FSIZE96 = %d bytes\n", fsize96);
2192 av_log(avctx, AV_LOG_DEBUG, "REVNO = %d\n", get_bits(&s->gb, 4));
2193
2194 s->core_ext_mask |= DCA_EXT_X96;
2195 break;
2196 }
2197 }
2198
2199 skip_bits_long(&s->gb, (-get_bits_count(&s->gb)) & 31);
2200 }
2201 } else {
2202 /* no supported extensions, skip the rest of the core substream */
2203 skip_bits_long(&s->gb, core_ss_end - get_bits_count(&s->gb));
2204 }
2205
2206 if (s->core_ext_mask & DCA_EXT_X96)
2207 s->profile = FF_PROFILE_DTS_96_24;
2208 else if (s->core_ext_mask & (DCA_EXT_XCH | DCA_EXT_XXCH))
2209 s->profile = FF_PROFILE_DTS_ES;
2210
2211 /* check for ExSS (HD part) */
2212 if (s->dca_buffer_size - s->frame_size > 32 &&
2213 get_bits_long(&s->gb, 32) == DCA_HD_MARKER)
2214 dca_exss_parse_header(s);
2215
2216 avctx->profile = s->profile;
2217
2218 channels = s->prim_channels + !!s->lfe;
2219
2220 /* If we have XXCH then the channel layout is managed differently */
2221 /* note that XLL will also have another way to do things */
2222 if (!(s->core_ext_mask & DCA_EXT_XXCH)
2223 || (s->core_ext_mask & DCA_EXT_XXCH && avctx->request_channels > 0
2224 && avctx->request_channels
2225 < num_core_channels + !!s->lfe + s->xxch_chset_nch[0]))
2226 { /* xxx should also do MA extensions */
2227 if (s->amode < 16) {
2228 avctx->channel_layout = dca_core_channel_layout[s->amode];
2229
2230 if (s->xch_present && (!avctx->request_channels ||
2231 avctx->request_channels
2232 > num_core_channels + !!s->lfe)) {
2233 avctx->channel_layout |= AV_CH_BACK_CENTER;
2234 if (s->lfe) {
2235 avctx->channel_layout |= AV_CH_LOW_FREQUENCY;
2236 s->channel_order_tab = dca_channel_reorder_lfe_xch[s->amode];
2237 } else {
2238 s->channel_order_tab = dca_channel_reorder_nolfe_xch[s->amode];
2239 }
2240 } else {
2241 channels = num_core_channels + !!s->lfe;
2242 s->xch_present = 0; /* disable further xch processing */
2243 if (s->lfe) {
2244 avctx->channel_layout |= AV_CH_LOW_FREQUENCY;
2245 s->channel_order_tab = dca_channel_reorder_lfe[s->amode];
2246 } else
2247 s->channel_order_tab = dca_channel_reorder_nolfe[s->amode];
2248 }
2249
2250 if (channels > !!s->lfe &&
2251 s->channel_order_tab[channels - 1 - !!s->lfe] < 0)
2252 return AVERROR_INVALIDDATA;
2253
2254 if (avctx->request_channels == 2 && s->prim_channels > 2) {
2255 channels = 2;
2256 s->output = DCA_STEREO;
2257 avctx->channel_layout = AV_CH_LAYOUT_STEREO;
2258 }
2259 else if (avctx->request_channel_layout & AV_CH_LAYOUT_NATIVE) {
2260 static const int8_t dca_channel_order_native[9] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 };
2261 s->channel_order_tab = dca_channel_order_native;
2262 }
2263 s->lfe_index = dca_lfe_index[s->amode];
2264 } else {
2265 av_log(avctx, AV_LOG_ERROR,
2266 "Non standard configuration %d !\n", s->amode);
2267 return AVERROR_INVALIDDATA;
2268 }
2269
2270 s->xxch_downmix = 0;
2271 } else {
2272 /* we only get here if an XXCH channel set can be added to the mix */
2273 channel_mask = s->xxch_core_spkmask;
2274
2275 if (avctx->request_channels > 0
2276 && avctx->request_channels < s->prim_channels) {
2277 channels = num_core_channels + !!s->lfe;
2278 for (i = 0; i < s->xxch_chset && channels + s->xxch_chset_nch[i]
2279 <= avctx->request_channels; i++) {
2280 channels += s->xxch_chset_nch[i];
2281 channel_mask |= s->xxch_spk_masks[i];
2282 }
2283 } else {
2284 channels = s->prim_channels + !!s->lfe;
2285 for (i = 0; i < s->xxch_chset; i++) {
2286 channel_mask |= s->xxch_spk_masks[i];
2287 }
2288 }
2289
2290 /* Given the DTS spec'ed channel mask, generate an avcodec version */
2291 channel_layout = 0;
2292 for (i = 0; i < s->xxch_nbits_spk_mask; ++i) {
2293 if (channel_mask & (1 << i)) {
2294 channel_layout |= map_xxch_to_native[i];
2295 }
2296 }
2297
2298 /* make sure that we have managed to get equivelant dts/avcodec channel
2299 * masks in some sense -- unfortunately some channels could overlap */
2300 if (av_popcount(channel_mask) != av_popcount(channel_layout)) {
2301 av_log(avctx, AV_LOG_DEBUG,
2302 "DTS-XXCH: Inconsistant avcodec/dts channel layouts\n");
2303 return AVERROR_INVALIDDATA;
2304 }
2305
2306 avctx->channel_layout = channel_layout;
2307
2308 if (!(avctx->request_channel_layout & AV_CH_LAYOUT_NATIVE)) {
2309 /* Estimate DTS --> avcodec ordering table */
2310 for (chset = -1, j = 0; chset < s->xxch_chset; ++chset) {
2311 mask = chset >= 0 ? s->xxch_spk_masks[chset]
2312 : s->xxch_core_spkmask;
2313 for (i = 0; i < s->xxch_nbits_spk_mask; i++) {
2314 if (mask & ~(DCA_XXCH_LFE1 | DCA_XXCH_LFE2) & (1 << i)) {
2315 lavc = map_xxch_to_native[i];
2316 posn = av_popcount(channel_layout & (lavc - 1));
2317 s->xxch_order_tab[j++] = posn;
2318 }
2319 }
2320 }
2321
2322 s->lfe_index = av_popcount(channel_layout & (AV_CH_LOW_FREQUENCY-1));
2323 } else { /* native ordering */
2324 for (i = 0; i < channels; i++)
2325 s->xxch_order_tab[i] = i;
2326
2327 s->lfe_index = channels - 1;
2328 }
2329
2330 s->channel_order_tab = s->xxch_order_tab;
2331 }
2332
2333 if (avctx->channels != channels) {
2334 if (avctx->channels)
2335 av_log(avctx, AV_LOG_INFO, "Number of channels changed in DCA decoder (%d -> %d)\n", avctx->channels, channels);
2336 avctx->channels = channels;
2337 }
2338
2339 /* get output buffer */
2340 s->frame.nb_samples = 256 * (s->sample_blocks / 8);
2341 if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {
2342 av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
2343 return ret;
2344 }
2345 samples_flt = (float *) s->frame.data[0];
2346 samples_s16 = (int16_t *) s->frame.data[0];
2347
2348 /* filter to get final output */
2349 for (i = 0; i < (s->sample_blocks / 8); i++) {
2350 dca_filter_channels(s, i);
2351
2352 /* If this was marked as a DTS-ES stream we need to subtract back- */
2353 /* channel from SL & SR to remove matrixed back-channel signal */
2354 if ((s->source_pcm_res & 1) && s->xch_present) {
2355 float *back_chan = s->samples + s->channel_order_tab[s->xch_base_channel] * 256;
2356 float *lt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 2] * 256;
2357 float *rt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 1] * 256;
2358 s->fdsp.vector_fmac_scalar(lt_chan, back_chan, -M_SQRT1_2, 256);
2359 s->fdsp.vector_fmac_scalar(rt_chan, back_chan, -M_SQRT1_2, 256);
2360 }
2361
2362 /* If stream contains XXCH, we might need to undo an embedded downmix */
2363 if (s->xxch_dmix_embedded) {
2364 /* Loop over channel sets in turn */
2365 ch = num_core_channels;
2366 for (chset = 0; chset < s->xxch_chset; chset++) {
2367 endch = ch + s->xxch_chset_nch[chset];
2368 mask = s->xxch_dmix_embedded;
2369
2370 /* undo downmix */
2371 for (j = ch; j < endch; j++) {
2372 if (mask & (1 << j)) { /* this channel has been mixed-out */
2373 src_chan = s->samples + s->channel_order_tab[j] * 256;
2374 for (k = 0; k < endch; k++) {
2375 achan = s->channel_order_tab[k];
2376 scale = s->xxch_dmix_coeff[j][k];
2377 if (scale != 0.0) {
2378 dst_chan = s->samples + achan * 256;
2379 s->fdsp.vector_fmac_scalar(dst_chan, src_chan,
2380 -scale, 256);
2381 }
2382 }
2383 }
2384 }
2385
2386 /* if a downmix has been embedded then undo the pre-scaling */
2387 if ((mask & (1 << ch)) && s->xxch_dmix_sf[chset] != 1.0f) {
2388 scale = s->xxch_dmix_sf[chset];
2389
2390 for (j = 0; j < ch; j++) {
2391 src_chan = s->samples + s->channel_order_tab[j] * 256;
2392 for (k = 0; k < 256; k++)
2393 src_chan[k] *= scale;
2394 }
2395
2396 /* LFE channel is always part of core, scale if it exists */
2397 if (s->lfe) {
2398 src_chan = s->samples + s->lfe_index * 256;
2399 for (k = 0; k < 256; k++)
2400 src_chan[k] *= scale;
2401 }
2402 }
2403
2404 ch = endch;
2405 }
2406
2407 }
2408
2409 if (avctx->sample_fmt == AV_SAMPLE_FMT_FLT) {
2410 s->fmt_conv.float_interleave(samples_flt, s->samples_chanptr, 256,
2411 channels);
2412 samples_flt += 256 * channels;
2413 } else {
2414 s->fmt_conv.float_to_int16_interleave(samples_s16,
2415 s->samples_chanptr, 256,
2416 channels);
2417 samples_s16 += 256 * channels;
2418 }
2419 }
2420
2421 /* update lfe history */
2422 lfe_samples = 2 * s->lfe * (s->sample_blocks / 8);
2423 for (i = 0; i < 2 * s->lfe * 4; i++)
2424 s->lfe_data[i] = s->lfe_data[i + lfe_samples];
2425
2426 *got_frame_ptr = 1;
2427 *(AVFrame *) data = s->frame;
2428
2429 return buf_size;
2430}
2431
2432
2433
2434/**
2435 * DCA initialization
2436 *
2437 * @param avctx pointer to the AVCodecContext
2438 */
2439
2440static av_cold int dca_decode_init(AVCodecContext *avctx)
2441{
2442 DCAContext *s = avctx->priv_data;
2443 int i;
2444
2445 s->avctx = avctx;
2446 dca_init_vlcs();
2447
2448 avpriv_float_dsp_init(&s->fdsp, avctx->flags & CODEC_FLAG_BITEXACT);
2449 ff_mdct_init(&s->imdct, 6, 1, 1.0);
2450 ff_synth_filter_init(&s->synth);
2451 ff_dcadsp_init(&s->dcadsp);
2452 ff_fmt_convert_init(&s->fmt_conv, avctx);
2453
2454 for (i = 0; i < DCA_PRIM_CHANNELS_MAX + 1; i++)
2455 s->samples_chanptr[i] = s->samples + i * 256;
2456
2457 if (avctx->request_sample_fmt == AV_SAMPLE_FMT_FLT) {
2458 avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
2459 s->scale_bias = 1.0 / 32768.0;
2460 } else {
2461 avctx->sample_fmt = AV_SAMPLE_FMT_S16;
2462 s->scale_bias = 1.0;
2463 }
2464
2465 /* allow downmixing to stereo */
2466 if (avctx->channels > 0 && avctx->request_channels < avctx->channels &&
2467 avctx->request_channels == 2) {
2468 avctx->channels = avctx->request_channels;
2469 }
2470
2471 avcodec_get_frame_defaults(&s->frame);
2472 avctx->coded_frame = &s->frame;
2473
2474 return 0;
2475}
2476
2477static av_cold int dca_decode_end(AVCodecContext *avctx)
2478{
2479 DCAContext *s = avctx->priv_data;
2480 ff_mdct_end(&s->imdct);
2481 return 0;
2482}
2483
2484static const AVProfile profiles[] = {
2485 { FF_PROFILE_DTS, "DTS" },
2486 { FF_PROFILE_DTS_ES, "DTS-ES" },
2487 { FF_PROFILE_DTS_96_24, "DTS 96/24" },
2488 { FF_PROFILE_DTS_HD_HRA, "DTS-HD HRA" },
2489 { FF_PROFILE_DTS_HD_MA, "DTS-HD MA" },
2490 { FF_PROFILE_UNKNOWN },
2491};
2492
2493AVCodec ff_dca_decoder = {
2494 .name = "dca",
2495 .type = AVMEDIA_TYPE_AUDIO,
2496 .id = CODEC_ID_DTS,
2497 .priv_data_size = sizeof(DCAContext),
2498 .init = dca_decode_init,
2499 .decode = dca_decode_frame,
2500 .close = dca_decode_end,
2501 .long_name = NULL_IF_CONFIG_SMALL("DCA (DTS Coherent Acoustics)"),
2502 .capabilities = CODEC_CAP_CHANNEL_CONF | CODEC_CAP_DR1,
2503 .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLT,
2504 AV_SAMPLE_FMT_S16,
2505 AV_SAMPLE_FMT_NONE },
2506 .profiles = NULL_IF_CONFIG_SMALL(profiles),
2507};33};
libavcodec/dca.h+4−0
@@ -25,6 +25,8 @@ · 24 unmodified lines
25#ifndef AVCODEC_DCA_H25#ifndef AVCODEC_DCA_H
26#define AVCODEC_DCA_H26#define AVCODEC_DCA_H
27 27
28#include <stdint.h>
29
28/** DCA syncwords, also used for bitstream type detection */30/** DCA syncwords, also used for bitstream type detection */
29#define DCA_MARKER_RAW_BE 0x7FFE800131#define DCA_MARKER_RAW_BE 0x7FFE8001
30#define DCA_MARKER_RAW_LE 0xFE7F018032#define DCA_MARKER_RAW_LE 0xFE7F0180
@@ -34,4 +36,6 @@ · 3 unmodified lines
34/** DCA-HD specific block starts with this marker. */36/** DCA-HD specific block starts with this marker. */
35#define DCA_HD_MARKER 0x6458202537#define DCA_HD_MARKER 0x64582025
36 38
39extern const uint32_t avpriv_dca_sample_rates[16];
40
37#endif /* AVCODEC_DCA_H */41#endif /* AVCODEC_DCA_H */
libavcodec/dca_parser.c+1−2
@@ -24,7 +24,6 @@ · 23 unmodified lines
24 24
25#include "parser.h"25#include "parser.h"
26#include "dca.h"26#include "dca.h"
27#include "dcadata.h"
28#include "dca_parser.h"27#include "dca_parser.h"
29#include "get_bits.h"28#include "get_bits.h"
30#include "put_bits.h"29#include "put_bits.h"
@@ -160,7 +159,7 @@ static int dca_parse_params(const uint8_t *buf, int buf_size, int *duration, · 129 unmodified lines
160 159
161 skip_bits(&gb, 20);160 skip_bits(&gb, 20);
162 sr_code = get_bits(&gb, 4);161 sr_code = get_bits(&gb, 4);
163 *sample_rate = dca_sample_rates[sr_code];162 *sample_rate = avpriv_dca_sample_rates[sr_code];
164 if (*sample_rate == 0)163 if (*sample_rate == 0)
165 return AVERROR_INVALIDDATA;164 return AVERROR_INVALIDDATA;
166 165
libavcodec/dcadata.h+0−6
@@ -28,12 +28,6 @@ · 27 unmodified lines
28 28
29/* Generic tables */29/* Generic tables */
30 30
31static const uint32_t dca_sample_rates[16] =
32{
33 0, 8000, 16000, 32000, 0, 0, 11025, 22050, 44100, 0, 0,
34 12000, 24000, 48000, 96000, 192000
35};
36
37static const uint32_t dca_bit_rates[32] =31static const uint32_t dca_bit_rates[32] =
38{32{
39 32000, 56000, 64000, 96000, 112000, 128000,33 32000, 56000, 64000, 96000, 112000, 128000,
libavcodec/dcadec.c+2507−0
@@ -0,0 +1,2507 @@
1/*
2 * DCA compatible decoder
3 * Copyright (C) 2004 Gildas Bazin
4 * Copyright (C) 2004 Benjamin Zores
5 * Copyright (C) 2006 Benjamin Larsson
6 * Copyright (C) 2007 Konstantin Shishkov
7 *
8 * This file is part of FFmpeg.
9 *
10 * FFmpeg is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * FFmpeg is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with FFmpeg; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 */
24
25#include <math.h>
26#include <stddef.h>
27#include <stdio.h>
28
29#include "libavutil/common.h"
30#include "libavutil/float_dsp.h"
31#include "libavutil/intmath.h"
32#include "libavutil/intreadwrite.h"
33#include "libavutil/mathematics.h"
34#include "libavutil/audioconvert.h"
35#include "avcodec.h"
36#include "dsputil.h"
37#include "fft.h"
38#include "get_bits.h"
39#include "put_bits.h"
40#include "dcadata.h"
41#include "dcahuff.h"
42#include "dca.h"
43#include "dca_parser.h"
44#include "synth_filter.h"
45#include "dcadsp.h"
46#include "fmtconvert.h"
47
48#if ARCH_ARM
49# include "arm/dca.h"
50#endif
51
52//#define TRACE
53
54#define DCA_PRIM_CHANNELS_MAX (7)
55#define DCA_SUBBANDS (64)
56#define DCA_ABITS_MAX (32) /* Should be 28 */
57#define DCA_SUBSUBFRAMES_MAX (4)
58#define DCA_SUBFRAMES_MAX (16)
59#define DCA_BLOCKS_MAX (16)
60#define DCA_LFE_MAX (3)
61#define DCA_CHSETS_MAX (4)
62#define DCA_CHSET_CHANS_MAX (8)
63
64enum DCAMode {
65 DCA_MONO = 0,
66 DCA_CHANNEL,
67 DCA_STEREO,
68 DCA_STEREO_SUMDIFF,
69 DCA_STEREO_TOTAL,
70 DCA_3F,
71 DCA_2F1R,
72 DCA_3F1R,
73 DCA_2F2R,
74 DCA_3F2R,
75 DCA_4F2R
76};
77
78/* these are unconfirmed but should be mostly correct */
79enum DCAExSSSpeakerMask {
80 DCA_EXSS_FRONT_CENTER = 0x0001,
81 DCA_EXSS_FRONT_LEFT_RIGHT = 0x0002,
82 DCA_EXSS_SIDE_REAR_LEFT_RIGHT = 0x0004,
83 DCA_EXSS_LFE = 0x0008,
84 DCA_EXSS_REAR_CENTER = 0x0010,
85 DCA_EXSS_FRONT_HIGH_LEFT_RIGHT = 0x0020,
86 DCA_EXSS_REAR_LEFT_RIGHT = 0x0040,
87 DCA_EXSS_FRONT_HIGH_CENTER = 0x0080,
88 DCA_EXSS_OVERHEAD = 0x0100,
89 DCA_EXSS_CENTER_LEFT_RIGHT = 0x0200,
90 DCA_EXSS_WIDE_LEFT_RIGHT = 0x0400,
91 DCA_EXSS_SIDE_LEFT_RIGHT = 0x0800,
92 DCA_EXSS_LFE2 = 0x1000,
93 DCA_EXSS_SIDE_HIGH_LEFT_RIGHT = 0x2000,
94 DCA_EXSS_REAR_HIGH_CENTER = 0x4000,
95 DCA_EXSS_REAR_HIGH_LEFT_RIGHT = 0x8000,
96};
97
98enum DCAXxchSpeakerMask {
99 DCA_XXCH_FRONT_CENTER = 0x0000001,
100 DCA_XXCH_FRONT_LEFT = 0x0000002,
101 DCA_XXCH_FRONT_RIGHT = 0x0000004,
102 DCA_XXCH_SIDE_REAR_LEFT = 0x0000008,
103 DCA_XXCH_SIDE_REAR_RIGHT = 0x0000010,
104 DCA_XXCH_LFE1 = 0x0000020,
105 DCA_XXCH_REAR_CENTER = 0x0000040,
106 DCA_XXCH_SURROUND_REAR_LEFT = 0x0000080,
107 DCA_XXCH_SURROUND_REAR_RIGHT = 0x0000100,
108 DCA_XXCH_SIDE_SURROUND_LEFT = 0x0000200,
109 DCA_XXCH_SIDE_SURROUND_RIGHT = 0x0000400,
110 DCA_XXCH_FRONT_CENTER_LEFT = 0x0000800,
111 DCA_XXCH_FRONT_CENTER_RIGHT = 0x0001000,
112 DCA_XXCH_FRONT_HIGH_LEFT = 0x0002000,
113 DCA_XXCH_FRONT_HIGH_CENTER = 0x0004000,
114 DCA_XXCH_FRONT_HIGH_RIGHT = 0x0008000,
115 DCA_XXCH_LFE2 = 0x0010000,
116 DCA_XXCH_SIDE_FRONT_LEFT = 0x0020000,
117 DCA_XXCH_SIDE_FRONT_RIGHT = 0x0040000,
118 DCA_XXCH_OVERHEAD = 0x0080000,
119 DCA_XXCH_SIDE_HIGH_LEFT = 0x0100000,
120 DCA_XXCH_SIDE_HIGH_RIGHT = 0x0200000,
121 DCA_XXCH_REAR_HIGH_CENTER = 0x0400000,
122 DCA_XXCH_REAR_HIGH_LEFT = 0x0800000,
123 DCA_XXCH_REAR_HIGH_RIGHT = 0x1000000,
124 DCA_XXCH_REAR_LOW_CENTER = 0x2000000,
125 DCA_XXCH_REAR_LOW_LEFT = 0x4000000,
126 DCA_XXCH_REAR_LOW_RIGHT = 0x8000000,
127};
128
129static const uint32_t map_xxch_to_native[28] = {
130 AV_CH_FRONT_CENTER,
131 AV_CH_FRONT_LEFT,
132 AV_CH_FRONT_RIGHT,
133 AV_CH_SIDE_LEFT,
134 AV_CH_SIDE_RIGHT,
135 AV_CH_LOW_FREQUENCY,
136 AV_CH_BACK_CENTER,
137 AV_CH_BACK_LEFT,
138 AV_CH_BACK_RIGHT,
139 AV_CH_SIDE_LEFT, /* side surround left -- dup sur side L */
140 AV_CH_SIDE_RIGHT, /* side surround right -- dup sur side R */
141 AV_CH_FRONT_LEFT_OF_CENTER,
142 AV_CH_FRONT_RIGHT_OF_CENTER,
143 AV_CH_TOP_FRONT_LEFT,
144 AV_CH_TOP_FRONT_CENTER,
145 AV_CH_TOP_FRONT_RIGHT,
146 AV_CH_LOW_FREQUENCY, /* lfe2 -- duplicate lfe1 position */
147 AV_CH_FRONT_LEFT_OF_CENTER, /* side front left -- dup front cntr L */
148 AV_CH_FRONT_RIGHT_OF_CENTER,/* side front right -- dup front cntr R */
149 AV_CH_TOP_CENTER, /* overhead */
150 AV_CH_TOP_FRONT_LEFT, /* side high left -- dup */
151 AV_CH_TOP_FRONT_RIGHT, /* side high right -- dup */
152 AV_CH_TOP_BACK_CENTER,
153 AV_CH_TOP_BACK_LEFT,
154 AV_CH_TOP_BACK_RIGHT,
155 AV_CH_BACK_CENTER, /* rear low center -- dup */
156 AV_CH_BACK_LEFT, /* rear low left -- dup */
157 AV_CH_BACK_RIGHT /* read low right -- dup */
158};
159
160enum DCAExtensionMask {
161 DCA_EXT_CORE = 0x001, ///< core in core substream
162 DCA_EXT_XXCH = 0x002, ///< XXCh channels extension in core substream
163 DCA_EXT_X96 = 0x004, ///< 96/24 extension in core substream
164 DCA_EXT_XCH = 0x008, ///< XCh channel extension in core substream
165 DCA_EXT_EXSS_CORE = 0x010, ///< core in ExSS (extension substream)
166 DCA_EXT_EXSS_XBR = 0x020, ///< extended bitrate extension in ExSS
167 DCA_EXT_EXSS_XXCH = 0x040, ///< XXCh channels extension in ExSS
168 DCA_EXT_EXSS_X96 = 0x080, ///< 96/24 extension in ExSS
169 DCA_EXT_EXSS_LBR = 0x100, ///< low bitrate component in ExSS
170 DCA_EXT_EXSS_XLL = 0x200, ///< lossless extension in ExSS
171};
172
173/* -1 are reserved or unknown */
174static const int dca_ext_audio_descr_mask[] = {
175 DCA_EXT_XCH,
176 -1,
177 DCA_EXT_X96,
178 DCA_EXT_XCH | DCA_EXT_X96,
179 -1,
180 -1,
181 DCA_EXT_XXCH,
182 -1,
183};
184
185/* extensions that reside in core substream */
186#define DCA_CORE_EXTS (DCA_EXT_XCH | DCA_EXT_XXCH | DCA_EXT_X96)
187
188/* Tables for mapping dts channel configurations to libavcodec multichannel api.
189 * Some compromises have been made for special configurations. Most configurations
190 * are never used so complete accuracy is not needed.
191 *
192 * L = left, R = right, C = center, S = surround, F = front, R = rear, T = total, OV = overhead.
193 * S -> side, when both rear and back are configured move one of them to the side channel
194 * OV -> center back
195 * All 2 channel configurations -> AV_CH_LAYOUT_STEREO
196 */
197static const uint64_t dca_core_channel_layout[] = {
198 AV_CH_FRONT_CENTER, ///< 1, A
199 AV_CH_LAYOUT_STEREO, ///< 2, A + B (dual mono)
200 AV_CH_LAYOUT_STEREO, ///< 2, L + R (stereo)
201 AV_CH_LAYOUT_STEREO, ///< 2, (L + R) + (L - R) (sum-difference)
202 AV_CH_LAYOUT_STEREO, ///< 2, LT + RT (left and right total)
203 AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER, ///< 3, C + L + R
204 AV_CH_LAYOUT_STEREO | AV_CH_BACK_CENTER, ///< 3, L + R + S
205 AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 4, C + L + R + S
206 AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 4, L + R + SL + SR
207
208 AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_SIDE_LEFT |
209 AV_CH_SIDE_RIGHT, ///< 5, C + L + R + SL + SR
210
211 AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT |
212 AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER, ///< 6, CL + CR + L + R + SL + SR
213
214 AV_CH_LAYOUT_STEREO | AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT |
215 AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 6, C + L + R + LR + RR + OV
216
217 AV_CH_FRONT_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER |
218 AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_BACK_CENTER |
219 AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 6, CF + CR + LF + RF + LR + RR
220
221 AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER |
222 AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO |
223 AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 7, CL + C + CR + L + R + SL + SR
224
225 AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER |
226 AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT |
227 AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 8, CL + CR + L + R + SL1 + SL2 + SR1 + SR2
228
229 AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER |
230 AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO |
231 AV_CH_SIDE_LEFT | AV_CH_BACK_CENTER | AV_CH_SIDE_RIGHT, ///< 8, CL + C + CR + L + R + SL + S + SR
232};
233
234static const int8_t dca_lfe_index[] = {
235 1, 2, 2, 2, 2, 3, 2, 3, 2, 3, 2, 3, 1, 3, 2, 3
236};
237
238static const int8_t dca_channel_reorder_lfe[][9] = {
239 { 0, -1, -1, -1, -1, -1, -1, -1, -1},
240 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
241 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
242 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
243 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
244 { 2, 0, 1, -1, -1, -1, -1, -1, -1},
245 { 0, 1, 3, -1, -1, -1, -1, -1, -1},
246 { 2, 0, 1, 4, -1, -1, -1, -1, -1},
247 { 0, 1, 3, 4, -1, -1, -1, -1, -1},
248 { 2, 0, 1, 4, 5, -1, -1, -1, -1},
249 { 3, 4, 0, 1, 5, 6, -1, -1, -1},
250 { 2, 0, 1, 4, 5, 6, -1, -1, -1},
251 { 0, 6, 4, 5, 2, 3, -1, -1, -1},
252 { 4, 2, 5, 0, 1, 6, 7, -1, -1},
253 { 5, 6, 0, 1, 7, 3, 8, 4, -1},
254 { 4, 2, 5, 0, 1, 6, 8, 7, -1},
255};
256
257static const int8_t dca_channel_reorder_lfe_xch[][9] = {
258 { 0, 2, -1, -1, -1, -1, -1, -1, -1},
259 { 0, 1, 3, -1, -1, -1, -1, -1, -1},
260 { 0, 1, 3, -1, -1, -1, -1, -1, -1},
261 { 0, 1, 3, -1, -1, -1, -1, -1, -1},
262 { 0, 1, 3, -1, -1, -1, -1, -1, -1},
263 { 2, 0, 1, 4, -1, -1, -1, -1, -1},
264 { 0, 1, 3, 4, -1, -1, -1, -1, -1},
265 { 2, 0, 1, 4, 5, -1, -1, -1, -1},
266 { 0, 1, 4, 5, 3, -1, -1, -1, -1},
267 { 2, 0, 1, 5, 6, 4, -1, -1, -1},
268 { 3, 4, 0, 1, 6, 7, 5, -1, -1},
269 { 2, 0, 1, 4, 5, 6, 7, -1, -1},
270 { 0, 6, 4, 5, 2, 3, 7, -1, -1},
271 { 4, 2, 5, 0, 1, 7, 8, 6, -1},
272 { 5, 6, 0, 1, 8, 3, 9, 4, 7},
273 { 4, 2, 5, 0, 1, 6, 9, 8, 7},
274};
275
276static const int8_t dca_channel_reorder_nolfe[][9] = {
277 { 0, -1, -1, -1, -1, -1, -1, -1, -1},
278 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
279 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
280 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
281 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
282 { 2, 0, 1, -1, -1, -1, -1, -1, -1},
283 { 0, 1, 2, -1, -1, -1, -1, -1, -1},
284 { 2, 0, 1, 3, -1, -1, -1, -1, -1},
285 { 0, 1, 2, 3, -1, -1, -1, -1, -1},
286 { 2, 0, 1, 3, 4, -1, -1, -1, -1},
287 { 2, 3, 0, 1, 4, 5, -1, -1, -1},
288 { 2, 0, 1, 3, 4, 5, -1, -1, -1},
289 { 0, 5, 3, 4, 1, 2, -1, -1, -1},
290 { 3, 2, 4, 0, 1, 5, 6, -1, -1},
291 { 4, 5, 0, 1, 6, 2, 7, 3, -1},
292 { 3, 2, 4, 0, 1, 5, 7, 6, -1},
293};
294
295static const int8_t dca_channel_reorder_nolfe_xch[][9] = {
296 { 0, 1, -1, -1, -1, -1, -1, -1, -1},
297 { 0, 1, 2, -1, -1, -1, -1, -1, -1},
298 { 0, 1, 2, -1, -1, -1, -1, -1, -1},
299 { 0, 1, 2, -1, -1, -1, -1, -1, -1},
300 { 0, 1, 2, -1, -1, -1, -1, -1, -1},
301 { 2, 0, 1, 3, -1, -1, -1, -1, -1},
302 { 0, 1, 2, 3, -1, -1, -1, -1, -1},
303 { 2, 0, 1, 3, 4, -1, -1, -1, -1},
304 { 0, 1, 3, 4, 2, -1, -1, -1, -1},
305 { 2, 0, 1, 4, 5, 3, -1, -1, -1},
306 { 2, 3, 0, 1, 5, 6, 4, -1, -1},
307 { 2, 0, 1, 3, 4, 5, 6, -1, -1},
308 { 0, 5, 3, 4, 1, 2, 6, -1, -1},
309 { 3, 2, 4, 0, 1, 6, 7, 5, -1},
310 { 4, 5, 0, 1, 7, 2, 8, 3, 6},
311 { 3, 2, 4, 0, 1, 5, 8, 7, 6},
312};
313
314#define DCA_DOLBY 101 /* FIXME */
315
316#define DCA_CHANNEL_BITS 6
317#define DCA_CHANNEL_MASK 0x3F
318
319#define DCA_LFE 0x80
320
321#define HEADER_SIZE 14
322
323#define DCA_MAX_FRAME_SIZE 16384
324#define DCA_MAX_EXSS_HEADER_SIZE 4096
325
326#define DCA_BUFFER_PADDING_SIZE 1024
327
328/** Bit allocation */
329typedef struct {
330 int offset; ///< code values offset
331 int maxbits[8]; ///< max bits in VLC
332 int wrap; ///< wrap for get_vlc2()
333 VLC vlc[8]; ///< actual codes
334} BitAlloc;
335
336static BitAlloc dca_bitalloc_index; ///< indexes for samples VLC select
337static BitAlloc dca_tmode; ///< transition mode VLCs
338static BitAlloc dca_scalefactor; ///< scalefactor VLCs
339static BitAlloc dca_smpl_bitalloc[11]; ///< samples VLCs
340
341static av_always_inline int get_bitalloc(GetBitContext *gb, BitAlloc *ba,
342 int idx)
343{
344 return get_vlc2(gb, ba->vlc[idx].table, ba->vlc[idx].bits, ba->wrap) +
345 ba->offset;
346}
347
348typedef struct {
349 AVCodecContext *avctx;
350 AVFrame frame;
351 /* Frame header */
352 int frame_type; ///< type of the current frame
353 int samples_deficit; ///< deficit sample count
354 int crc_present; ///< crc is present in the bitstream
355 int sample_blocks; ///< number of PCM sample blocks
356 int frame_size; ///< primary frame byte size
357 int amode; ///< audio channels arrangement
358 int sample_rate; ///< audio sampling rate
359 int bit_rate; ///< transmission bit rate
360 int bit_rate_index; ///< transmission bit rate index
361
362 int downmix; ///< embedded downmix enabled
363 int dynrange; ///< embedded dynamic range flag
364 int timestamp; ///< embedded time stamp flag
365 int aux_data; ///< auxiliary data flag
366 int hdcd; ///< source material is mastered in HDCD
367 int ext_descr; ///< extension audio descriptor flag
368 int ext_coding; ///< extended coding flag
369 int aspf; ///< audio sync word insertion flag
370 int lfe; ///< low frequency effects flag
371 int predictor_history; ///< predictor history flag
372 int header_crc; ///< header crc check bytes
373 int multirate_inter; ///< multirate interpolator switch
374 int version; ///< encoder software revision
375 int copy_history; ///< copy history
376 int source_pcm_res; ///< source pcm resolution
377 int front_sum; ///< front sum/difference flag
378 int surround_sum; ///< surround sum/difference flag
379 int dialog_norm; ///< dialog normalisation parameter
380
381 /* Primary audio coding header */
382 int subframes; ///< number of subframes
383 int total_channels; ///< number of channels including extensions
384 int prim_channels; ///< number of primary audio channels
385 int subband_activity[DCA_PRIM_CHANNELS_MAX]; ///< subband activity count
386 int vq_start_subband[DCA_PRIM_CHANNELS_MAX]; ///< high frequency vq start subband
387 int joint_intensity[DCA_PRIM_CHANNELS_MAX]; ///< joint intensity coding index
388 int transient_huffman[DCA_PRIM_CHANNELS_MAX]; ///< transient mode code book
389 int scalefactor_huffman[DCA_PRIM_CHANNELS_MAX]; ///< scale factor code book
390 int bitalloc_huffman[DCA_PRIM_CHANNELS_MAX]; ///< bit allocation quantizer select
391 int quant_index_huffman[DCA_PRIM_CHANNELS_MAX][DCA_ABITS_MAX]; ///< quantization index codebook select
392 float scalefactor_adj[DCA_PRIM_CHANNELS_MAX][DCA_ABITS_MAX]; ///< scale factor adjustment
393
394 /* Primary audio coding side information */
395 int subsubframes[DCA_SUBFRAMES_MAX]; ///< number of subsubframes
396 int partial_samples[DCA_SUBFRAMES_MAX]; ///< partial subsubframe samples count
397 int prediction_mode[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< prediction mode (ADPCM used or not)
398 int prediction_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< prediction VQ coefs
399 int bitalloc[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< bit allocation index
400 int transition_mode[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< transition mode (transients)
401 int scale_factor[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][2]; ///< scale factors (2 if transient)
402 int joint_huff[DCA_PRIM_CHANNELS_MAX]; ///< joint subband scale factors codebook
403 int joint_scale_factor[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< joint subband scale factors
404 int downmix_coef[DCA_PRIM_CHANNELS_MAX][2]; ///< stereo downmix coefficients
405 int dynrange_coef; ///< dynamic range coefficient
406
407 int high_freq_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< VQ encoded high frequency subbands
408
409 float lfe_data[2 * DCA_LFE_MAX * (DCA_BLOCKS_MAX + 4)]; ///< Low frequency effect data
410 int lfe_scale_factor;
411
412 /* Subband samples history (for ADPCM) */
413 DECLARE_ALIGNED(16, float, subband_samples_hist)[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][4];
414 DECLARE_ALIGNED(32, float, subband_fir_hist)[DCA_PRIM_CHANNELS_MAX][512];
415 DECLARE_ALIGNED(32, float, subband_fir_noidea)[DCA_PRIM_CHANNELS_MAX][32];
416 int hist_index[DCA_PRIM_CHANNELS_MAX];
417 DECLARE_ALIGNED(32, float, raXin)[32];
418
419 int output; ///< type of output
420 float scale_bias; ///< output scale
421
422 DECLARE_ALIGNED(32, float, subband_samples)[DCA_BLOCKS_MAX][DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][8];
423 DECLARE_ALIGNED(32, float, samples)[(DCA_PRIM_CHANNELS_MAX + 1) * 256];
424 const float *samples_chanptr[DCA_PRIM_CHANNELS_MAX + 1];
425
426 uint8_t dca_buffer[DCA_MAX_FRAME_SIZE + DCA_MAX_EXSS_HEADER_SIZE + DCA_BUFFER_PADDING_SIZE];
427 int dca_buffer_size; ///< how much data is in the dca_buffer
428
429 const int8_t *channel_order_tab; ///< channel reordering table, lfe and non lfe
430 GetBitContext gb;
431 /* Current position in DCA frame */
432 int current_subframe;
433 int current_subsubframe;
434
435 int core_ext_mask; ///< present extensions in the core substream
436
437 /* XCh extension information */
438 int xch_present; ///< XCh extension present and valid
439 int xch_base_channel; ///< index of first (only) channel containing XCH data
440
441 /* XXCH extension information */
442 int xxch_chset;
443 int xxch_nbits_spk_mask;
444 uint32_t xxch_core_spkmask;
445 uint32_t xxch_spk_masks[4]; /* speaker masks, last element is core mask */
446 int xxch_chset_nch[4];
447 float xxch_dmix_sf[DCA_CHSETS_MAX];
448
449 uint32_t xxch_downmix; /* downmix enabled per channel set */
450 uint32_t xxch_dmix_embedded; /* lower layer has mix pre-embedded, per chset */
451 float xxch_dmix_coeff[DCA_PRIM_CHANNELS_MAX][32]; /* worst case sizing */
452
453 int8_t xxch_order_tab[32];
454 int8_t lfe_index;
455
456 /* ExSS header parser */
457 int static_fields; ///< static fields present
458 int mix_metadata; ///< mixing metadata present
459 int num_mix_configs; ///< number of mix out configurations
460 int mix_config_num_ch[4]; ///< number of channels in each mix out configuration
461
462 int profile;
463
464 int debug_flag; ///< used for suppressing repeated error messages output
465 AVFloatDSPContext fdsp;
466 FFTContext imdct;
467 SynthFilterContext synth;
468 DCADSPContext dcadsp;
469 FmtConvertContext fmt_conv;
470} DCAContext;
471
472static const uint16_t dca_vlc_offs[] = {
473 0, 512, 640, 768, 1282, 1794, 2436, 3080, 3770, 4454, 5364,
474 5372, 5380, 5388, 5392, 5396, 5412, 5420, 5428, 5460, 5492, 5508,
475 5572, 5604, 5668, 5796, 5860, 5892, 6412, 6668, 6796, 7308, 7564,
476 7820, 8076, 8620, 9132, 9388, 9910, 10166, 10680, 11196, 11726, 12240,
477 12752, 13298, 13810, 14326, 14840, 15500, 16022, 16540, 17158, 17678, 18264,
478 18796, 19352, 19926, 20468, 21472, 22398, 23014, 23622,
479};
480
481static av_cold void dca_init_vlcs(void)
482{
483 static int vlcs_initialized = 0;
484 int i, j, c = 14;
485 static VLC_TYPE dca_table[23622][2];
486
487 if (vlcs_initialized)
488 return;
489
490 dca_bitalloc_index.offset = 1;
491 dca_bitalloc_index.wrap = 2;
492 for (i = 0; i < 5; i++) {
493 dca_bitalloc_index.vlc[i].table = &dca_table[dca_vlc_offs[i]];
494 dca_bitalloc_index.vlc[i].table_allocated = dca_vlc_offs[i + 1] - dca_vlc_offs[i];
495 init_vlc(&dca_bitalloc_index.vlc[i], bitalloc_12_vlc_bits[i], 12,
496 bitalloc_12_bits[i], 1, 1,
497 bitalloc_12_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
498 }
499 dca_scalefactor.offset = -64;
500 dca_scalefactor.wrap = 2;
501 for (i = 0; i < 5; i++) {
502 dca_scalefactor.vlc[i].table = &dca_table[dca_vlc_offs[i + 5]];
503 dca_scalefactor.vlc[i].table_allocated = dca_vlc_offs[i + 6] - dca_vlc_offs[i + 5];
504 init_vlc(&dca_scalefactor.vlc[i], SCALES_VLC_BITS, 129,
505 scales_bits[i], 1, 1,
506 scales_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
507 }
508 dca_tmode.offset = 0;
509 dca_tmode.wrap = 1;
510 for (i = 0; i < 4; i++) {
511 dca_tmode.vlc[i].table = &dca_table[dca_vlc_offs[i + 10]];
512 dca_tmode.vlc[i].table_allocated = dca_vlc_offs[i + 11] - dca_vlc_offs[i + 10];
513 init_vlc(&dca_tmode.vlc[i], tmode_vlc_bits[i], 4,
514 tmode_bits[i], 1, 1,
515 tmode_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
516 }
517
518 for (i = 0; i < 10; i++)
519 for (j = 0; j < 7; j++) {
520 if (!bitalloc_codes[i][j])
521 break;
522 dca_smpl_bitalloc[i + 1].offset = bitalloc_offsets[i];
523 dca_smpl_bitalloc[i + 1].wrap = 1 + (j > 4);
524 dca_smpl_bitalloc[i + 1].vlc[j].table = &dca_table[dca_vlc_offs[c]];
525 dca_smpl_bitalloc[i + 1].vlc[j].table_allocated = dca_vlc_offs[c + 1] - dca_vlc_offs[c];
526
527 init_vlc(&dca_smpl_bitalloc[i + 1].vlc[j], bitalloc_maxbits[i][j],
528 bitalloc_sizes[i],
529 bitalloc_bits[i][j], 1, 1,
530 bitalloc_codes[i][j], 2, 2, INIT_VLC_USE_NEW_STATIC);
531 c++;
532 }
533 vlcs_initialized = 1;
534}
535
536static inline void get_array(GetBitContext *gb, int *dst, int len, int bits)
537{
538 while (len--)
539 *dst++ = get_bits(gb, bits);
540}
541
542static inline int dca_xxch2index(DCAContext *s, int xxch_ch)
543{
544 int i, base, mask;
545
546 /* locate channel set containing the channel */
547 for (i = -1, base = 0, mask = (s->xxch_core_spkmask & ~DCA_XXCH_LFE1);
548 i <= s->xxch_chset && !(mask & xxch_ch); mask = s->xxch_spk_masks[++i])
549 base += av_popcount(mask);
550
551 return base + av_popcount(mask & (xxch_ch - 1));
552}
553
554static int dca_parse_audio_coding_header(DCAContext *s, int base_channel,
555 int xxch)
556{
557 int i, j;
558 static const float adj_table[4] = { 1.0, 1.1250, 1.2500, 1.4375 };
559 static const int bitlen[11] = { 0, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3 };
560 static const int thr[11] = { 0, 1, 3, 3, 3, 3, 7, 7, 7, 7, 7 };
561 int hdr_pos = 0, hdr_size = 0;
562 float sign, mag, scale_factor;
563 int this_chans, acc_mask;
564 int embedded_downmix;
565 int nchans, mask[8];
566 int coeff, ichan;
567
568 /* xxch has arbitrary sized audio coding headers */
569 if (xxch) {
570 hdr_pos = get_bits_count(&s->gb);
571 hdr_size = get_bits(&s->gb, 7) + 1;
572 }
573
574 nchans = get_bits(&s->gb, 3) + 1;
575 s->total_channels = nchans + base_channel;
576 s->prim_channels = s->total_channels;
577
578 /* obtain speaker layout mask & downmix coefficients for XXCH */
579 if (xxch) {
580 acc_mask = s->xxch_core_spkmask;
581
582 this_chans = get_bits(&s->gb, s->xxch_nbits_spk_mask - 6) << 6;
583 s->xxch_spk_masks[s->xxch_chset] = this_chans;
584 s->xxch_chset_nch[s->xxch_chset] = nchans;
585
586 for (i = 0; i <= s->xxch_chset; i++)
587 acc_mask |= s->xxch_spk_masks[i];
588
589 /* check for downmixing information */
590 if (get_bits1(&s->gb)) {
591 embedded_downmix = get_bits1(&s->gb);
592 scale_factor =
593 1.0f / dca_downmix_scale_factors[(get_bits(&s->gb, 6) - 1) << 2];
594
595 s->xxch_dmix_sf[s->xxch_chset] = scale_factor;
596
597 for (i = base_channel; i < s->prim_channels; i++) {
598 s->xxch_downmix |= (1 << i);
599 mask[i] = get_bits(&s->gb, s->xxch_nbits_spk_mask);
600 }
601
602 for (j = base_channel; j < s->prim_channels; j++) {
603 memset(s->xxch_dmix_coeff[j], 0, sizeof(s->xxch_dmix_coeff[0]));
604 s->xxch_dmix_embedded |= (embedded_downmix << j);
605 for (i = 0; i < s->xxch_nbits_spk_mask; i++) {
606 if (mask[j] & (1 << i)) {
607 if ((1 << i) == DCA_XXCH_LFE1) {
608 av_log(s->avctx, AV_LOG_WARNING,
609 "DCA-XXCH: dmix to LFE1 not supported.\n");
610 continue;
611 }
612
613 coeff = get_bits(&s->gb, 7);
614 sign = (coeff & 64) ? 1.0 : -1.0;
615 mag = dca_downmix_scale_factors[((coeff & 63) - 1) << 2];
616 ichan = dca_xxch2index(s, 1 << i);
617 s->xxch_dmix_coeff[j][ichan] = sign * mag;
618 }
619 }
620 }
621 }
622 }
623
624 if (s->prim_channels > DCA_PRIM_CHANNELS_MAX)
625 s->prim_channels = DCA_PRIM_CHANNELS_MAX;
626
627
628 for (i = base_channel; i < s->prim_channels; i++) {
629 s->subband_activity[i] = get_bits(&s->gb, 5) + 2;
630 if (s->subband_activity[i] > DCA_SUBBANDS)
631 s->subband_activity[i] = DCA_SUBBANDS;
632 }
633 for (i = base_channel; i < s->prim_channels; i++) {
634 s->vq_start_subband[i] = get_bits(&s->gb, 5) + 1;
635 if (s->vq_start_subband[i] > DCA_SUBBANDS)
636 s->vq_start_subband[i] = DCA_SUBBANDS;
637 }
638 get_array(&s->gb, s->joint_intensity + base_channel, s->prim_channels - base_channel, 3);
639 get_array(&s->gb, s->transient_huffman + base_channel, s->prim_channels - base_channel, 2);
640 get_array(&s->gb, s->scalefactor_huffman + base_channel, s->prim_channels - base_channel, 3);
641 get_array(&s->gb, s->bitalloc_huffman + base_channel, s->prim_channels - base_channel, 3);
642
643 /* Get codebooks quantization indexes */
644 if (!base_channel)
645 memset(s->quant_index_huffman, 0, sizeof(s->quant_index_huffman));
646 for (j = 1; j < 11; j++)
647 for (i = base_channel; i < s->prim_channels; i++)
648 s->quant_index_huffman[i][j] = get_bits(&s->gb, bitlen[j]);
649
650 /* Get scale factor adjustment */
651 for (j = 0; j < 11; j++)
652 for (i = base_channel; i < s->prim_channels; i++)
653 s->scalefactor_adj[i][j] = 1;
654
655 for (j = 1; j < 11; j++)
656 for (i = base_channel; i < s->prim_channels; i++)
657 if (s->quant_index_huffman[i][j] < thr[j])
658 s->scalefactor_adj[i][j] = adj_table[get_bits(&s->gb, 2)];
659
660 if (!xxch) {
661 if (s->crc_present) {
662 /* Audio header CRC check */
663 get_bits(&s->gb, 16);
664 }
665 } else {
666 /* Skip to the end of the header, also ignore CRC if present */
667 i = get_bits_count(&s->gb);
668 if (hdr_pos + 8 * hdr_size > i)
669 skip_bits_long(&s->gb, hdr_pos + 8 * hdr_size - i);
670 }
671
672 s->current_subframe = 0;
673 s->current_subsubframe = 0;
674
675#ifdef TRACE
676 av_log(s->avctx, AV_LOG_DEBUG, "subframes: %i\n", s->subframes);
677 av_log(s->avctx, AV_LOG_DEBUG, "prim channels: %i\n", s->prim_channels);
678 for (i = base_channel; i < s->prim_channels; i++) {
679 av_log(s->avctx, AV_LOG_DEBUG, "subband activity: %i\n",
680 s->subband_activity[i]);
681 av_log(s->avctx, AV_LOG_DEBUG, "vq start subband: %i\n",
682 s->vq_start_subband[i]);
683 av_log(s->avctx, AV_LOG_DEBUG, "joint intensity: %i\n",
684 s->joint_intensity[i]);
685 av_log(s->avctx, AV_LOG_DEBUG, "transient mode codebook: %i\n",
686 s->transient_huffman[i]);
687 av_log(s->avctx, AV_LOG_DEBUG, "scale factor codebook: %i\n",
688 s->scalefactor_huffman[i]);
689 av_log(s->avctx, AV_LOG_DEBUG, "bit allocation quantizer: %i\n",
690 s->bitalloc_huffman[i]);
691 av_log(s->avctx, AV_LOG_DEBUG, "quant index huff:");
692 for (j = 0; j < 11; j++)
693 av_log(s->avctx, AV_LOG_DEBUG, " %i", s->quant_index_huffman[i][j]);
694 av_log(s->avctx, AV_LOG_DEBUG, "\n");
695 av_log(s->avctx, AV_LOG_DEBUG, "scalefac adj:");
696 for (j = 0; j < 11; j++)
697 av_log(s->avctx, AV_LOG_DEBUG, " %1.3f", s->scalefactor_adj[i][j]);
698 av_log(s->avctx, AV_LOG_DEBUG, "\n");
699 }
700#endif
701
702 return 0;
703}
704
705static int dca_parse_frame_header(DCAContext *s)
706{
707 init_get_bits(&s->gb, s->dca_buffer, s->dca_buffer_size * 8);
708
709 /* Sync code */
710 skip_bits_long(&s->gb, 32);
711
712 /* Frame header */
713 s->frame_type = get_bits(&s->gb, 1);
714 s->samples_deficit = get_bits(&s->gb, 5) + 1;
715 s->crc_present = get_bits(&s->gb, 1);
716 s->sample_blocks = get_bits(&s->gb, 7) + 1;
717 s->frame_size = get_bits(&s->gb, 14) + 1;
718 if (s->frame_size < 95)
719 return AVERROR_INVALIDDATA;
720 s->amode = get_bits(&s->gb, 6);
721 s->sample_rate = avpriv_dca_sample_rates[get_bits(&s->gb, 4)];
722 if (!s->sample_rate)
723 return AVERROR_INVALIDDATA;
724 s->bit_rate_index = get_bits(&s->gb, 5);
725 s->bit_rate = dca_bit_rates[s->bit_rate_index];
726 if (!s->bit_rate)
727 return AVERROR_INVALIDDATA;
728
729 s->downmix = get_bits(&s->gb, 1); /* note: this is FixedBit == 0 */
730 s->dynrange = get_bits(&s->gb, 1);
731 s->timestamp = get_bits(&s->gb, 1);
732 s->aux_data = get_bits(&s->gb, 1);
733 s->hdcd = get_bits(&s->gb, 1);
734 s->ext_descr = get_bits(&s->gb, 3);
735 s->ext_coding = get_bits(&s->gb, 1);
736 s->aspf = get_bits(&s->gb, 1);
737 s->lfe = get_bits(&s->gb, 2);
738 s->predictor_history = get_bits(&s->gb, 1);
739
740 /* TODO: check CRC */
741 if (s->crc_present)
742 s->header_crc = get_bits(&s->gb, 16);
743
744 s->multirate_inter = get_bits(&s->gb, 1);
745 s->version = get_bits(&s->gb, 4);
746 s->copy_history = get_bits(&s->gb, 2);
747 s->source_pcm_res = get_bits(&s->gb, 3);
748 s->front_sum = get_bits(&s->gb, 1);
749 s->surround_sum = get_bits(&s->gb, 1);
750 s->dialog_norm = get_bits(&s->gb, 4);
751
752 /* FIXME: channels mixing levels */
753 s->output = s->amode;
754 if (s->lfe)
755 s->output |= DCA_LFE;
756
757#ifdef TRACE
758 av_log(s->avctx, AV_LOG_DEBUG, "frame type: %i\n", s->frame_type);
759 av_log(s->avctx, AV_LOG_DEBUG, "samples deficit: %i\n", s->samples_deficit);
760 av_log(s->avctx, AV_LOG_DEBUG, "crc present: %i\n", s->crc_present);
761 av_log(s->avctx, AV_LOG_DEBUG, "sample blocks: %i (%i samples)\n",
762 s->sample_blocks, s->sample_blocks * 32);
763 av_log(s->avctx, AV_LOG_DEBUG, "frame size: %i bytes\n", s->frame_size);
764 av_log(s->avctx, AV_LOG_DEBUG, "amode: %i (%i channels)\n",
765 s->amode, dca_channels[s->amode]);
766 av_log(s->avctx, AV_LOG_DEBUG, "sample rate: %i Hz\n",
767 s->sample_rate);
768 av_log(s->avctx, AV_LOG_DEBUG, "bit rate: %i bits/s\n",
769 s->bit_rate);
770 av_log(s->avctx, AV_LOG_DEBUG, "downmix: %i\n", s->downmix);
771 av_log(s->avctx, AV_LOG_DEBUG, "dynrange: %i\n", s->dynrange);
772 av_log(s->avctx, AV_LOG_DEBUG, "timestamp: %i\n", s->timestamp);
773 av_log(s->avctx, AV_LOG_DEBUG, "aux_data: %i\n", s->aux_data);
774 av_log(s->avctx, AV_LOG_DEBUG, "hdcd: %i\n", s->hdcd);
775 av_log(s->avctx, AV_LOG_DEBUG, "ext descr: %i\n", s->ext_descr);
776 av_log(s->avctx, AV_LOG_DEBUG, "ext coding: %i\n", s->ext_coding);
777 av_log(s->avctx, AV_LOG_DEBUG, "aspf: %i\n", s->aspf);
778 av_log(s->avctx, AV_LOG_DEBUG, "lfe: %i\n", s->lfe);
779 av_log(s->avctx, AV_LOG_DEBUG, "predictor history: %i\n",
780 s->predictor_history);
781 av_log(s->avctx, AV_LOG_DEBUG, "header crc: %i\n", s->header_crc);
782 av_log(s->avctx, AV_LOG_DEBUG, "multirate inter: %i\n",
783 s->multirate_inter);
784 av_log(s->avctx, AV_LOG_DEBUG, "version number: %i\n", s->version);
785 av_log(s->avctx, AV_LOG_DEBUG, "copy history: %i\n", s->copy_history);
786 av_log(s->avctx, AV_LOG_DEBUG,
787 "source pcm resolution: %i (%i bits/sample)\n",
788 s->source_pcm_res, dca_bits_per_sample[s->source_pcm_res]);
789 av_log(s->avctx, AV_LOG_DEBUG, "front sum: %i\n", s->front_sum);
790 av_log(s->avctx, AV_LOG_DEBUG, "surround sum: %i\n", s->surround_sum);
791 av_log(s->avctx, AV_LOG_DEBUG, "dialog norm: %i\n", s->dialog_norm);
792 av_log(s->avctx, AV_LOG_DEBUG, "\n");
793#endif
794
795 /* Primary audio coding header */
796 s->subframes = get_bits(&s->gb, 4) + 1;
797
798 return dca_parse_audio_coding_header(s, 0, 0);
799}
800
801
802static inline int get_scale(GetBitContext *gb, int level, int value, int log2range)
803{
804 if (level < 5) {
805 /* huffman encoded */
806 value += get_bitalloc(gb, &dca_scalefactor, level);
807 value = av_clip(value, 0, (1 << log2range) - 1);
808 } else if (level < 8) {
809 if (level + 1 > log2range) {
810 skip_bits(gb, level + 1 - log2range);
811 value = get_bits(gb, log2range);
812 } else {
813 value = get_bits(gb, level + 1);
814 }
815 }
816 return value;
817}
818
819static int dca_subframe_header(DCAContext *s, int base_channel, int block_index)
820{
821 /* Primary audio coding side information */
822 int j, k;
823
824 if (get_bits_left(&s->gb) < 0)
825 return AVERROR_INVALIDDATA;
826
827 if (!base_channel) {
828 s->subsubframes[s->current_subframe] = get_bits(&s->gb, 2) + 1;
829 s->partial_samples[s->current_subframe] = get_bits(&s->gb, 3);
830 }
831
832 for (j = base_channel; j < s->prim_channels; j++) {
833 for (k = 0; k < s->subband_activity[j]; k++)
834 s->prediction_mode[j][k] = get_bits(&s->gb, 1);
835 }
836
837 /* Get prediction codebook */
838 for (j = base_channel; j < s->prim_channels; j++) {
839 for (k = 0; k < s->subband_activity[j]; k++) {
840 if (s->prediction_mode[j][k] > 0) {
841 /* (Prediction coefficient VQ address) */
842 s->prediction_vq[j][k] = get_bits(&s->gb, 12);
843 }
844 }
845 }
846
847 /* Bit allocation index */
848 for (j = base_channel; j < s->prim_channels; j++) {
849 for (k = 0; k < s->vq_start_subband[j]; k++) {
850 if (s->bitalloc_huffman[j] == 6)
851 s->bitalloc[j][k] = get_bits(&s->gb, 5);
852 else if (s->bitalloc_huffman[j] == 5)
853 s->bitalloc[j][k] = get_bits(&s->gb, 4);
854 else if (s->bitalloc_huffman[j] == 7) {
855 av_log(s->avctx, AV_LOG_ERROR,
856 "Invalid bit allocation index\n");
857 return AVERROR_INVALIDDATA;
858 } else {
859 s->bitalloc[j][k] =
860 get_bitalloc(&s->gb, &dca_bitalloc_index, s->bitalloc_huffman[j]);
861 }
862
863 if (s->bitalloc[j][k] > 26) {
864 // av_log(s->avctx, AV_LOG_DEBUG, "bitalloc index [%i][%i] too big (%i)\n",
865 // j, k, s->bitalloc[j][k]);
866 return AVERROR_INVALIDDATA;
867 }
868 }
869 }
870
871 /* Transition mode */
872 for (j = base_channel; j < s->prim_channels; j++) {
873 for (k = 0; k < s->subband_activity[j]; k++) {
874 s->transition_mode[j][k] = 0;
875 if (s->subsubframes[s->current_subframe] > 1 &&
876 k < s->vq_start_subband[j] && s->bitalloc[j][k] > 0) {
877 s->transition_mode[j][k] =
878 get_bitalloc(&s->gb, &dca_tmode, s->transient_huffman[j]);
879 }
880 }
881 }
882
883 if (get_bits_left(&s->gb) < 0)
884 return AVERROR_INVALIDDATA;
885
886 for (j = base_channel; j < s->prim_channels; j++) {
887 const uint32_t *scale_table;
888 int scale_sum, log_size;
889
890 memset(s->scale_factor[j], 0,
891 s->subband_activity[j] * sizeof(s->scale_factor[0][0][0]) * 2);
892
893 if (s->scalefactor_huffman[j] == 6) {
894 scale_table = scale_factor_quant7;
895 log_size = 7;
896 } else {
897 scale_table = scale_factor_quant6;
898 log_size = 6;
899 }
900
901 /* When huffman coded, only the difference is encoded */
902 scale_sum = 0;
903
904 for (k = 0; k < s->subband_activity[j]; k++) {
905 if (k >= s->vq_start_subband[j] || s->bitalloc[j][k] > 0) {
906 scale_sum = get_scale(&s->gb, s->scalefactor_huffman[j], scale_sum, log_size);
907 s->scale_factor[j][k][0] = scale_table[scale_sum];
908 }
909
910 if (k < s->vq_start_subband[j] && s->transition_mode[j][k]) {
911 /* Get second scale factor */
912 scale_sum = get_scale(&s->gb, s->scalefactor_huffman[j], scale_sum, log_size);
913 s->scale_factor[j][k][1] = scale_table[scale_sum];
914 }
915 }
916 }
917
918 /* Joint subband scale factor codebook select */
919 for (j = base_channel; j < s->prim_channels; j++) {
920 /* Transmitted only if joint subband coding enabled */
921 if (s->joint_intensity[j] > 0)
922 s->joint_huff[j] = get_bits(&s->gb, 3);
923 }
924
925 if (get_bits_left(&s->gb) < 0)
926 return AVERROR_INVALIDDATA;
927
928 /* Scale factors for joint subband coding */
929 for (j = base_channel; j < s->prim_channels; j++) {
930 int source_channel;
931
932 /* Transmitted only if joint subband coding enabled */
933 if (s->joint_intensity[j] > 0) {
934 int scale = 0;
935 source_channel = s->joint_intensity[j] - 1;
936
937 /* When huffman coded, only the difference is encoded
938 * (is this valid as well for joint scales ???) */
939
940 for (k = s->subband_activity[j]; k < s->subband_activity[source_channel]; k++) {
941 scale = get_scale(&s->gb, s->joint_huff[j], 64 /* bias */, 7);
942 s->joint_scale_factor[j][k] = scale; /*joint_scale_table[scale]; */
943 }
944
945 if (!(s->debug_flag & 0x02)) {
946 av_log(s->avctx, AV_LOG_DEBUG,
947 "Joint stereo coding not supported\n");
948 s->debug_flag |= 0x02;
949 }
950 }
951 }
952
953 /* Stereo downmix coefficients */
954 if (!base_channel && s->prim_channels > 2) {
955 if (s->downmix) {
956 for (j = base_channel; j < s->prim_channels; j++) {
957 s->downmix_coef[j][0] = get_bits(&s->gb, 7);
958 s->downmix_coef[j][1] = get_bits(&s->gb, 7);
959 }
960 } else {
961 int am = s->amode & DCA_CHANNEL_MASK;
962 if (am >= FF_ARRAY_ELEMS(dca_default_coeffs)) {
963 av_log(s->avctx, AV_LOG_ERROR,
964 "Invalid channel mode %d\n", am);
965 return AVERROR_INVALIDDATA;
966 }
967 for (j = base_channel; j < FFMIN(s->prim_channels, FF_ARRAY_ELEMS(dca_default_coeffs[am])); j++) {
968 s->downmix_coef[j][0] = dca_default_coeffs[am][j][0];
969 s->downmix_coef[j][1] = dca_default_coeffs[am][j][1];
970 }
971 }
972 }
973
974 /* Dynamic range coefficient */
975 if (!base_channel && s->dynrange)
976 s->dynrange_coef = get_bits(&s->gb, 8);
977
978 /* Side information CRC check word */
979 if (s->crc_present) {
980 get_bits(&s->gb, 16);
981 }
982
983 /*
984 * Primary audio data arrays
985 */
986
987 /* VQ encoded high frequency subbands */
988 for (j = base_channel; j < s->prim_channels; j++)
989 for (k = s->vq_start_subband[j]; k < s->subband_activity[j]; k++)
990 /* 1 vector -> 32 samples */
991 s->high_freq_vq[j][k] = get_bits(&s->gb, 10);
992
993 /* Low frequency effect data */
994 if (!base_channel && s->lfe) {
995 int quant7;
996 /* LFE samples */
997 int lfe_samples = 2 * s->lfe * (4 + block_index);
998 int lfe_end_sample = 2 * s->lfe * (4 + block_index + s->subsubframes[s->current_subframe]);
999 float lfe_scale;
1000
1001 for (j = lfe_samples; j < lfe_end_sample; j++) {
1002 /* Signed 8 bits int */
1003 s->lfe_data[j] = get_sbits(&s->gb, 8);
1004 }
1005
1006 /* Scale factor index */
1007 quant7 = get_bits(&s->gb, 8);
1008 if (quant7 > 127) {
1009 av_log_ask_for_sample(s->avctx, "LFEScaleIndex larger than 127\n");
1010 return AVERROR_INVALIDDATA;
1011 }
1012 s->lfe_scale_factor = scale_factor_quant7[quant7];
1013
1014 /* Quantization step size * scale factor */
1015 lfe_scale = 0.035 * s->lfe_scale_factor;
1016
1017 for (j = lfe_samples; j < lfe_end_sample; j++)
1018 s->lfe_data[j] *= lfe_scale;
1019 }
1020
1021#ifdef TRACE
1022 av_log(s->avctx, AV_LOG_DEBUG, "subsubframes: %i\n",
1023 s->subsubframes[s->current_subframe]);
1024 av_log(s->avctx, AV_LOG_DEBUG, "partial samples: %i\n",
1025 s->partial_samples[s->current_subframe]);
1026
1027 for (j = base_channel; j < s->prim_channels; j++) {
1028 av_log(s->avctx, AV_LOG_DEBUG, "prediction mode:");
1029 for (k = 0; k < s->subband_activity[j]; k++)
1030 av_log(s->avctx, AV_LOG_DEBUG, " %i", s->prediction_mode[j][k]);
1031 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1032 }
1033 for (j = base_channel; j < s->prim_channels; j++) {
1034 for (k = 0; k < s->subband_activity[j]; k++)
1035 av_log(s->avctx, AV_LOG_DEBUG,
1036 "prediction coefs: %f, %f, %f, %f\n",
1037 (float) adpcm_vb[s->prediction_vq[j][k]][0] / 8192,
1038 (float) adpcm_vb[s->prediction_vq[j][k]][1] / 8192,
1039 (float) adpcm_vb[s->prediction_vq[j][k]][2] / 8192,
1040 (float) adpcm_vb[s->prediction_vq[j][k]][3] / 8192);
1041 }
1042 for (j = base_channel; j < s->prim_channels; j++) {
1043 av_log(s->avctx, AV_LOG_DEBUG, "bitalloc index: ");
1044 for (k = 0; k < s->vq_start_subband[j]; k++)
1045 av_log(s->avctx, AV_LOG_DEBUG, "%2.2i ", s->bitalloc[j][k]);
1046 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1047 }
1048 for (j = base_channel; j < s->prim_channels; j++) {
1049 av_log(s->avctx, AV_LOG_DEBUG, "Transition mode:");
1050 for (k = 0; k < s->subband_activity[j]; k++)
1051 av_log(s->avctx, AV_LOG_DEBUG, " %i", s->transition_mode[j][k]);
1052 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1053 }
1054 for (j = base_channel; j < s->prim_channels; j++) {
1055 av_log(s->avctx, AV_LOG_DEBUG, "Scale factor:");
1056 for (k = 0; k < s->subband_activity[j]; k++) {
1057 if (k >= s->vq_start_subband[j] || s->bitalloc[j][k] > 0)
1058 av_log(s->avctx, AV_LOG_DEBUG, " %i", s->scale_factor[j][k][0]);
1059 if (k < s->vq_start_subband[j] && s->transition_mode[j][k])
1060 av_log(s->avctx, AV_LOG_DEBUG, " %i(t)", s->scale_factor[j][k][1]);
1061 }
1062 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1063 }
1064 for (j = base_channel; j < s->prim_channels; j++) {
1065 if (s->joint_intensity[j] > 0) {
1066 int source_channel = s->joint_intensity[j] - 1;
1067 av_log(s->avctx, AV_LOG_DEBUG, "Joint scale factor index:\n");
1068 for (k = s->subband_activity[j]; k < s->subband_activity[source_channel]; k++)
1069 av_log(s->avctx, AV_LOG_DEBUG, " %i", s->joint_scale_factor[j][k]);
1070 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1071 }
1072 }
1073 if (!base_channel && s->prim_channels > 2 && s->downmix) {
1074 av_log(s->avctx, AV_LOG_DEBUG, "Downmix coeffs:\n");
1075 for (j = 0; j < s->prim_channels; j++) {
1076 av_log(s->avctx, AV_LOG_DEBUG, "Channel 0, %d = %f\n", j,
1077 dca_downmix_coeffs[s->downmix_coef[j][0]]);
1078 av_log(s->avctx, AV_LOG_DEBUG, "Channel 1, %d = %f\n", j,
1079 dca_downmix_coeffs[s->downmix_coef[j][1]]);
1080 }
1081 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1082 }
1083 for (j = base_channel; j < s->prim_channels; j++)
1084 for (k = s->vq_start_subband[j]; k < s->subband_activity[j]; k++)
1085 av_log(s->avctx, AV_LOG_DEBUG, "VQ index: %i\n", s->high_freq_vq[j][k]);
1086 if (!base_channel && s->lfe) {
1087 int lfe_samples = 2 * s->lfe * (4 + block_index);
1088 int lfe_end_sample = 2 * s->lfe * (4 + block_index + s->subsubframes[s->current_subframe]);
1089
1090 av_log(s->avctx, AV_LOG_DEBUG, "LFE samples:\n");
1091 for (j = lfe_samples; j < lfe_end_sample; j++)
1092 av_log(s->avctx, AV_LOG_DEBUG, " %f", s->lfe_data[j]);
1093 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1094 }
1095#endif
1096
1097 return 0;
1098}
1099
1100static void qmf_32_subbands(DCAContext *s, int chans,
1101 float samples_in[32][8], float *samples_out,
1102 float scale)
1103{
1104 const float *prCoeff;
1105 int i;
1106
1107 int sb_act = s->subband_activity[chans];
1108 int subindex;
1109
1110 scale *= sqrt(1 / 8.0);
1111
1112 /* Select filter */
1113 if (!s->multirate_inter) /* Non-perfect reconstruction */
1114 prCoeff = fir_32bands_nonperfect;
1115 else /* Perfect reconstruction */
1116 prCoeff = fir_32bands_perfect;
1117
1118 for (i = sb_act; i < 32; i++)
1119 s->raXin[i] = 0.0;
1120
1121 /* Reconstructed channel sample index */
1122 for (subindex = 0; subindex < 8; subindex++) {
1123 /* Load in one sample from each subband and clear inactive subbands */
1124 for (i = 0; i < sb_act; i++) {
1125 unsigned sign = (i - 1) & 2;
1126 uint32_t v = AV_RN32A(&samples_in[i][subindex]) ^ sign << 30;
1127 AV_WN32A(&s->raXin[i], v);
1128 }
1129
1130 s->synth.synth_filter_float(&s->imdct,
1131 s->subband_fir_hist[chans],
1132 &s->hist_index[chans],
1133 s->subband_fir_noidea[chans], prCoeff,
1134 samples_out, s->raXin, scale);
1135 samples_out += 32;
1136 }
1137}
1138
1139static void lfe_interpolation_fir(DCAContext *s, int decimation_select,
1140 int num_deci_sample, float *samples_in,
1141 float *samples_out, float scale)
1142{
1143 /* samples_in: An array holding decimated samples.
1144 * Samples in current subframe starts from samples_in[0],
1145 * while samples_in[-1], samples_in[-2], ..., stores samples
1146 * from last subframe as history.
1147 *
1148 * samples_out: An array holding interpolated samples
1149 */
1150
1151 int decifactor;
1152 const float *prCoeff;
1153 int deciindex;
1154
1155 /* Select decimation filter */
1156 if (decimation_select == 1) {
1157 decifactor = 64;
1158 prCoeff = lfe_fir_128;
1159 } else {
1160 decifactor = 32;
1161 prCoeff = lfe_fir_64;
1162 }
1163 /* Interpolation */
1164 for (deciindex = 0; deciindex < num_deci_sample; deciindex++) {
1165 s->dcadsp.lfe_fir(samples_out, samples_in, prCoeff, decifactor, scale);
1166 samples_in++;
1167 samples_out += 2 * decifactor;
1168 }
1169}
1170
1171/* downmixing routines */
1172#define MIX_REAR1(samples, si1, rs, coef) \
1173 samples[i] += samples[si1] * coef[rs][0]; \
1174 samples[i+256] += samples[si1] * coef[rs][1];
1175
1176#define MIX_REAR2(samples, si1, si2, rs, coef) \
1177 samples[i] += samples[si1] * coef[rs][0] + samples[si2] * coef[rs + 1][0]; \
1178 samples[i+256] += samples[si1] * coef[rs][1] + samples[si2] * coef[rs + 1][1];
1179
1180#define MIX_FRONT3(samples, coef) \
1181 t = samples[i + c]; \
1182 u = samples[i + l]; \
1183 v = samples[i + r]; \
1184 samples[i] = t * coef[0][0] + u * coef[1][0] + v * coef[2][0]; \
1185 samples[i+256] = t * coef[0][1] + u * coef[1][1] + v * coef[2][1];
1186
1187#define DOWNMIX_TO_STEREO(op1, op2) \
1188 for (i = 0; i < 256; i++) { \
1189 op1 \
1190 op2 \
1191 }
1192
1193static void dca_downmix(float *samples, int srcfmt,
1194 int downmix_coef[DCA_PRIM_CHANNELS_MAX][2],
1195 const int8_t *channel_mapping)
1196{
1197 int c, l, r, sl, sr, s;
1198 int i;
1199 float t, u, v;
1200 float coef[DCA_PRIM_CHANNELS_MAX][2];
1201
1202 for (i = 0; i < DCA_PRIM_CHANNELS_MAX; i++) {
1203 coef[i][0] = dca_downmix_coeffs[downmix_coef[i][0]];
1204 coef[i][1] = dca_downmix_coeffs[downmix_coef[i][1]];
1205 }
1206
1207 switch (srcfmt) {
1208 case DCA_MONO:
1209 case DCA_CHANNEL:
1210 case DCA_STEREO_TOTAL:
1211 case DCA_STEREO_SUMDIFF:
1212 case DCA_4F2R:
1213 av_log(NULL, 0, "Not implemented!\n");
1214 break;
1215 case DCA_STEREO:
1216 break;
1217 case DCA_3F:
1218 c = channel_mapping[0] * 256;
1219 l = channel_mapping[1] * 256;
1220 r = channel_mapping[2] * 256;
1221 DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef), );
1222 break;
1223 case DCA_2F1R:
1224 s = channel_mapping[2] * 256;
1225 DOWNMIX_TO_STEREO(MIX_REAR1(samples, i + s, 2, coef), );
1226 break;
1227 case DCA_3F1R:
1228 c = channel_mapping[0] * 256;
1229 l = channel_mapping[1] * 256;
1230 r = channel_mapping[2] * 256;
1231 s = channel_mapping[3] * 256;
1232 DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef),
1233 MIX_REAR1(samples, i + s, 3, coef));
1234 break;
1235 case DCA_2F2R:
1236 sl = channel_mapping[2] * 256;
1237 sr = channel_mapping[3] * 256;
1238 DOWNMIX_TO_STEREO(MIX_REAR2(samples, i + sl, i + sr, 2, coef), );
1239 break;
1240 case DCA_3F2R:
1241 c = channel_mapping[0] * 256;
1242 l = channel_mapping[1] * 256;
1243 r = channel_mapping[2] * 256;
1244 sl = channel_mapping[3] * 256;
1245 sr = channel_mapping[4] * 256;
1246 DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef),
1247 MIX_REAR2(samples, i + sl, i + sr, 3, coef));
1248 break;
1249 }
1250}
1251
1252
1253#ifndef decode_blockcodes
1254/* Very compact version of the block code decoder that does not use table
1255 * look-up but is slightly slower */
1256static int decode_blockcode(int code, int levels, int *values)
1257{
1258 int i;
1259 int offset = (levels - 1) >> 1;
1260
1261 for (i = 0; i < 4; i++) {
1262 int div = FASTDIV(code, levels);
1263 values[i] = code - offset - div * levels;
1264 code = div;
1265 }
1266
1267 return code;
1268}
1269
1270static int decode_blockcodes(int code1, int code2, int levels, int *values)
1271{
1272 return decode_blockcode(code1, levels, values) |
1273 decode_blockcode(code2, levels, values + 4);
1274}
1275#endif
1276
1277static const uint8_t abits_sizes[7] = { 7, 10, 12, 13, 15, 17, 19 };
1278static const uint8_t abits_levels[7] = { 3, 5, 7, 9, 13, 17, 25 };
1279
1280#ifndef int8x8_fmul_int32
1281static inline void int8x8_fmul_int32(float *dst, const int8_t *src, int scale)
1282{
1283 float fscale = scale / 16.0;
1284 int i;
1285 for (i = 0; i < 8; i++)
1286 dst[i] = src[i] * fscale;
1287}
1288#endif
1289
1290static int dca_subsubframe(DCAContext *s, int base_channel, int block_index)
1291{
1292 int k, l;
1293 int subsubframe = s->current_subsubframe;
1294
1295 const float *quant_step_table;
1296
1297 /* FIXME */
1298 float (*subband_samples)[DCA_SUBBANDS][8] = s->subband_samples[block_index];
1299 LOCAL_ALIGNED_16(int, block, [8]);
1300
1301 /*
1302 * Audio data
1303 */
1304
1305 /* Select quantization step size table */
1306 if (s->bit_rate_index == 0x1f)
1307 quant_step_table = lossless_quant_d;
1308 else
1309 quant_step_table = lossy_quant_d;
1310
1311 for (k = base_channel; k < s->prim_channels; k++) {
1312 if (get_bits_left(&s->gb) < 0)
1313 return AVERROR_INVALIDDATA;
1314
1315 for (l = 0; l < s->vq_start_subband[k]; l++) {
1316 int m;
1317
1318 /* Select the mid-tread linear quantizer */
1319 int abits = s->bitalloc[k][l];
1320
1321 float quant_step_size = quant_step_table[abits];
1322
1323 /*
1324 * Determine quantization index code book and its type
1325 */
1326
1327 /* Select quantization index code book */
1328 int sel = s->quant_index_huffman[k][abits];
1329
1330 /*
1331 * Extract bits from the bit stream
1332 */
1333 if (!abits) {
1334 memset(subband_samples[k][l], 0, 8 * sizeof(subband_samples[0][0][0]));
1335 } else {
1336 /* Deal with transients */
1337 int sfi = s->transition_mode[k][l] && subsubframe >= s->transition_mode[k][l];
1338 float rscale = quant_step_size * s->scale_factor[k][l][sfi] *
1339 s->scalefactor_adj[k][sel];
1340
1341 if (abits >= 11 || !dca_smpl_bitalloc[abits].vlc[sel].table) {
1342 if (abits <= 7) {
1343 /* Block code */
1344 int block_code1, block_code2, size, levels, err;
1345
1346 size = abits_sizes[abits - 1];
1347 levels = abits_levels[abits - 1];
1348
1349 block_code1 = get_bits(&s->gb, size);
1350 block_code2 = get_bits(&s->gb, size);
1351 err = decode_blockcodes(block_code1, block_code2,
1352 levels, block);
1353 if (err) {
1354 av_log(s->avctx, AV_LOG_ERROR,
1355 "ERROR: block code look-up failed\n");
1356 return AVERROR_INVALIDDATA;
1357 }
1358 } else {
1359 /* no coding */
1360 for (m = 0; m < 8; m++)
1361 block[m] = get_sbits(&s->gb, abits - 3);
1362 }
1363 } else {
1364 /* Huffman coded */
1365 for (m = 0; m < 8; m++)
1366 block[m] = get_bitalloc(&s->gb,
1367 &dca_smpl_bitalloc[abits], sel);
1368 }
1369
1370 s->fmt_conv.int32_to_float_fmul_scalar(subband_samples[k][l],
1371 block, rscale, 8);
1372 }
1373
1374 /*
1375 * Inverse ADPCM if in prediction mode
1376 */
1377 if (s->prediction_mode[k][l]) {
1378 int n;
1379 for (m = 0; m < 8; m++) {
1380 for (n = 1; n <= 4; n++)
1381 if (m >= n)
1382 subband_samples[k][l][m] +=
1383 (adpcm_vb[s->prediction_vq[k][l]][n - 1] *
1384 subband_samples[k][l][m - n] / 8192);
1385 else if (s->predictor_history)
1386 subband_samples[k][l][m] +=
1387 (adpcm_vb[s->prediction_vq[k][l]][n - 1] *
1388 s->subband_samples_hist[k][l][m - n + 4] / 8192);
1389 }
1390 }
1391 }
1392
1393 /*
1394 * Decode VQ encoded high frequencies
1395 */
1396 for (l = s->vq_start_subband[k]; l < s->subband_activity[k]; l++) {
1397 /* 1 vector -> 32 samples but we only need the 8 samples
1398 * for this subsubframe. */
1399 int hfvq = s->high_freq_vq[k][l];
1400
1401 if (!s->debug_flag & 0x01) {
1402 av_log(s->avctx, AV_LOG_DEBUG,
1403 "Stream with high frequencies VQ coding\n");
1404 s->debug_flag |= 0x01;
1405 }
1406
1407 int8x8_fmul_int32(subband_samples[k][l],
1408 &high_freq_vq[hfvq][subsubframe * 8],
1409 s->scale_factor[k][l][0]);
1410 }
1411 }
1412
1413 /* Check for DSYNC after subsubframe */
1414 if (s->aspf || subsubframe == s->subsubframes[s->current_subframe] - 1) {
1415 if (0xFFFF == get_bits(&s->gb, 16)) { /* 0xFFFF */
1416#ifdef TRACE
1417 av_log(s->avctx, AV_LOG_DEBUG, "Got subframe DSYNC\n");
1418#endif
1419 } else {
1420 av_log(s->avctx, AV_LOG_ERROR, "Didn't get subframe DSYNC\n");
1421 }
1422 }
1423
1424 /* Backup predictor history for adpcm */
1425 for (k = base_channel; k < s->prim_channels; k++)
1426 for (l = 0; l < s->vq_start_subband[k]; l++)
1427 memcpy(s->subband_samples_hist[k][l],
1428 &subband_samples[k][l][4],
1429 4 * sizeof(subband_samples[0][0][0]));
1430
1431 return 0;
1432}
1433
1434static int dca_filter_channels(DCAContext *s, int block_index)
1435{
1436 float (*subband_samples)[DCA_SUBBANDS][8] = s->subband_samples[block_index];
1437 int k;
1438
1439 /* 32 subbands QMF */
1440 for (k = 0; k < s->prim_channels; k++) {
1441/* static float pcm_to_double[8] = { 32768.0, 32768.0, 524288.0, 524288.0,
1442 0, 8388608.0, 8388608.0 };*/
1443 qmf_32_subbands(s, k, subband_samples[k],
1444 &s->samples[256 * s->channel_order_tab[k]],
1445 M_SQRT1_2 * s->scale_bias /* pcm_to_double[s->source_pcm_res] */);
1446 }
1447
1448 /* Down mixing */
1449 if (s->avctx->request_channels == 2 && s->prim_channels > 2) {
1450 dca_downmix(s->samples, s->amode, s->downmix_coef, s->channel_order_tab);
1451 }
1452
1453 /* Generate LFE samples for this subsubframe FIXME!!! */
1454 if (s->output & DCA_LFE) {
1455 lfe_interpolation_fir(s, s->lfe, 2 * s->lfe,
1456 s->lfe_data + 2 * s->lfe * (block_index + 4),
1457 &s->samples[256 * s->lfe_index],
1458 (1.0 / 256.0) * s->scale_bias);
1459 /* Outputs 20bits pcm samples */
1460 }
1461
1462 return 0;
1463}
1464
1465
1466static int dca_subframe_footer(DCAContext *s, int base_channel)
1467{
1468 int aux_data_count = 0, i;
1469
1470 /*
1471 * Unpack optional information
1472 */
1473
1474 /* presumably optional information only appears in the core? */
1475 if (!base_channel) {
1476 if (s->timestamp)
1477 skip_bits_long(&s->gb, 32);
1478
1479 if (s->aux_data)
1480 aux_data_count = get_bits(&s->gb, 6);
1481
1482 for (i = 0; i < aux_data_count; i++)
1483 get_bits(&s->gb, 8);
1484
1485 if (s->crc_present && (s->downmix || s->dynrange))
1486 get_bits(&s->gb, 16);
1487 }
1488
1489 return 0;
1490}
1491
1492/**
1493 * Decode a dca frame block
1494 *
1495 * @param s pointer to the DCAContext
1496 */
1497
1498static int dca_decode_block(DCAContext *s, int base_channel, int block_index)
1499{
1500 int ret;
1501
1502 /* Sanity check */
1503 if (s->current_subframe >= s->subframes) {
1504 av_log(s->avctx, AV_LOG_DEBUG, "check failed: %i>%i",
1505 s->current_subframe, s->subframes);
1506 return AVERROR_INVALIDDATA;
1507 }
1508
1509 if (!s->current_subsubframe) {
1510#ifdef TRACE
1511 av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subframe_header\n");
1512#endif
1513 /* Read subframe header */
1514 if ((ret = dca_subframe_header(s, base_channel, block_index)))
1515 return ret;
1516 }
1517
1518 /* Read subsubframe */
1519#ifdef TRACE
1520 av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subsubframe\n");
1521#endif
1522 if ((ret = dca_subsubframe(s, base_channel, block_index)))
1523 return ret;
1524
1525 /* Update state */
1526 s->current_subsubframe++;
1527 if (s->current_subsubframe >= s->subsubframes[s->current_subframe]) {
1528 s->current_subsubframe = 0;
1529 s->current_subframe++;
1530 }
1531 if (s->current_subframe >= s->subframes) {
1532#ifdef TRACE
1533 av_log(s->avctx, AV_LOG_DEBUG, "DSYNC dca_subframe_footer\n");
1534#endif
1535 /* Read subframe footer */
1536 if ((ret = dca_subframe_footer(s, base_channel)))
1537 return ret;
1538 }
1539
1540 return 0;
1541}
1542
1543/**
1544 * Return the number of channels in an ExSS speaker mask (HD)
1545 */
1546static int dca_exss_mask2count(int mask)
1547{
1548 /* count bits that mean speaker pairs twice */
1549 return av_popcount(mask) +
1550 av_popcount(mask & (DCA_EXSS_CENTER_LEFT_RIGHT |
1551 DCA_EXSS_FRONT_LEFT_RIGHT |
1552 DCA_EXSS_FRONT_HIGH_LEFT_RIGHT |
1553 DCA_EXSS_WIDE_LEFT_RIGHT |
1554 DCA_EXSS_SIDE_LEFT_RIGHT |
1555 DCA_EXSS_SIDE_HIGH_LEFT_RIGHT |
1556 DCA_EXSS_SIDE_REAR_LEFT_RIGHT |
1557 DCA_EXSS_REAR_LEFT_RIGHT |
1558 DCA_EXSS_REAR_HIGH_LEFT_RIGHT));
1559}
1560
1561/**
1562 * Skip mixing coefficients of a single mix out configuration (HD)
1563 */
1564static void dca_exss_skip_mix_coeffs(GetBitContext *gb, int channels, int out_ch)
1565{
1566 int i;
1567
1568 for (i = 0; i < channels; i++) {
1569 int mix_map_mask = get_bits(gb, out_ch);
1570 int num_coeffs = av_popcount(mix_map_mask);
1571 skip_bits_long(gb, num_coeffs * 6);
1572 }
1573}
1574
1575/**
1576 * Parse extension substream asset header (HD)
1577 */
1578static int dca_exss_parse_asset_header(DCAContext *s)
1579{
1580 int header_pos = get_bits_count(&s->gb);
1581 int header_size;
1582 int channels = 0;
1583 int embedded_stereo = 0;
1584 int embedded_6ch = 0;
1585 int drc_code_present;
1586 int av_uninit(extensions_mask);
1587 int i, j;
1588
1589 if (get_bits_left(&s->gb) < 16)
1590 return -1;
1591
1592 /* We will parse just enough to get to the extensions bitmask with which
1593 * we can set the profile value. */
1594
1595 header_size = get_bits(&s->gb, 9) + 1;
1596 skip_bits(&s->gb, 3); // asset index
1597
1598 if (s->static_fields) {
1599 if (get_bits1(&s->gb))
1600 skip_bits(&s->gb, 4); // asset type descriptor
1601 if (get_bits1(&s->gb))
1602 skip_bits_long(&s->gb, 24); // language descriptor
1603
1604 if (get_bits1(&s->gb)) {
1605 /* How can one fit 1024 bytes of text here if the maximum value
1606 * for the asset header size field above was 512 bytes? */
1607 int text_length = get_bits(&s->gb, 10) + 1;
1608 if (get_bits_left(&s->gb) < text_length * 8)
1609 return -1;
1610 skip_bits_long(&s->gb, text_length * 8); // info text
1611 }
1612
1613 skip_bits(&s->gb, 5); // bit resolution - 1
1614 skip_bits(&s->gb, 4); // max sample rate code
1615 channels = get_bits(&s->gb, 8) + 1;
1616
1617 if (get_bits1(&s->gb)) { // 1-to-1 channels to speakers
1618 int spkr_remap_sets;
1619 int spkr_mask_size = 16;
1620 int num_spkrs[7];
1621
1622 if (channels > 2)
1623 embedded_stereo = get_bits1(&s->gb);
1624 if (channels > 6)
1625 embedded_6ch = get_bits1(&s->gb);
1626
1627 if (get_bits1(&s->gb)) {
1628 spkr_mask_size = (get_bits(&s->gb, 2) + 1) << 2;
1629 skip_bits(&s->gb, spkr_mask_size); // spkr activity mask
1630 }
1631
1632 spkr_remap_sets = get_bits(&s->gb, 3);
1633
1634 for (i = 0; i < spkr_remap_sets; i++) {
1635 /* std layout mask for each remap set */
1636 num_spkrs[i] = dca_exss_mask2count(get_bits(&s->gb, spkr_mask_size));
1637 }
1638
1639 for (i = 0; i < spkr_remap_sets; i++) {
1640 int num_dec_ch_remaps = get_bits(&s->gb, 5) + 1;
1641 if (get_bits_left(&s->gb) < 0)
1642 return -1;
1643
1644 for (j = 0; j < num_spkrs[i]; j++) {
1645 int remap_dec_ch_mask = get_bits_long(&s->gb, num_dec_ch_remaps);
1646 int num_dec_ch = av_popcount(remap_dec_ch_mask);
1647 skip_bits_long(&s->gb, num_dec_ch * 5); // remap codes
1648 }
1649 }
1650
1651 } else {
1652 skip_bits(&s->gb, 3); // representation type
1653 }
1654 }
1655
1656 drc_code_present = get_bits1(&s->gb);
1657 if (drc_code_present)
1658 get_bits(&s->gb, 8); // drc code
1659
1660 if (get_bits1(&s->gb))
1661 skip_bits(&s->gb, 5); // dialog normalization code
1662
1663 if (drc_code_present && embedded_stereo)
1664 get_bits(&s->gb, 8); // drc stereo code
1665
1666 if (s->mix_metadata && get_bits1(&s->gb)) {
1667 skip_bits(&s->gb, 1); // external mix
1668 skip_bits(&s->gb, 6); // post mix gain code
1669
1670 if (get_bits(&s->gb, 2) != 3) // mixer drc code
1671 skip_bits(&s->gb, 3); // drc limit
1672 else
1673 skip_bits(&s->gb, 8); // custom drc code
1674
1675 if (get_bits1(&s->gb)) // channel specific scaling
1676 for (i = 0; i < s->num_mix_configs; i++)
1677 skip_bits_long(&s->gb, s->mix_config_num_ch[i] * 6); // scale codes
1678 else
1679 skip_bits_long(&s->gb, s->num_mix_configs * 6); // scale codes
1680
1681 for (i = 0; i < s->num_mix_configs; i++) {
1682 if (get_bits_left(&s->gb) < 0)
1683 return -1;
1684 dca_exss_skip_mix_coeffs(&s->gb, channels, s->mix_config_num_ch[i]);
1685 if (embedded_6ch)
1686 dca_exss_skip_mix_coeffs(&s->gb, 6, s->mix_config_num_ch[i]);
1687 if (embedded_stereo)
1688 dca_exss_skip_mix_coeffs(&s->gb, 2, s->mix_config_num_ch[i]);
1689 }
1690 }
1691
1692 switch (get_bits(&s->gb, 2)) {
1693 case 0: extensions_mask = get_bits(&s->gb, 12); break;
1694 case 1: extensions_mask = DCA_EXT_EXSS_XLL; break;
1695 case 2: extensions_mask = DCA_EXT_EXSS_LBR; break;
1696 case 3: extensions_mask = 0; /* aux coding */ break;
1697 }
1698
1699 /* not parsed further, we were only interested in the extensions mask */
1700
1701 if (get_bits_left(&s->gb) < 0)
1702 return -1;
1703
1704 if (get_bits_count(&s->gb) - header_pos > header_size * 8) {
1705 av_log(s->avctx, AV_LOG_WARNING, "Asset header size mismatch.\n");
1706 return -1;
1707 }
1708 skip_bits_long(&s->gb, header_pos + header_size * 8 - get_bits_count(&s->gb));
1709
1710 if (extensions_mask & DCA_EXT_EXSS_XLL)
1711 s->profile = FF_PROFILE_DTS_HD_MA;
1712 else if (extensions_mask & (DCA_EXT_EXSS_XBR | DCA_EXT_EXSS_X96 |
1713 DCA_EXT_EXSS_XXCH))
1714 s->profile = FF_PROFILE_DTS_HD_HRA;
1715
1716 if (!(extensions_mask & DCA_EXT_CORE))
1717 av_log(s->avctx, AV_LOG_WARNING, "DTS core detection mismatch.\n");
1718 if ((extensions_mask & DCA_CORE_EXTS) != s->core_ext_mask)
1719 av_log(s->avctx, AV_LOG_WARNING,
1720 "DTS extensions detection mismatch (%d, %d)\n",
1721 extensions_mask & DCA_CORE_EXTS, s->core_ext_mask);
1722
1723 return 0;
1724}
1725
1726static int dca_xbr_parse_frame(DCAContext *s)
1727{
1728 int scale_table_high[DCA_CHSET_CHANS_MAX][DCA_SUBBANDS][2];
1729 int active_bands[DCA_CHSETS_MAX][DCA_CHSET_CHANS_MAX];
1730 int abits_high[DCA_CHSET_CHANS_MAX][DCA_SUBBANDS];
1731 int anctemp[DCA_CHSET_CHANS_MAX];
1732 int chset_fsize[DCA_CHSETS_MAX];
1733 int n_xbr_ch[DCA_CHSETS_MAX];
1734 int hdr_size, num_chsets, xbr_tmode, hdr_pos;
1735 int i, j, k, l, chset, chan_base;
1736
1737 av_log(s->avctx, AV_LOG_DEBUG, "DTS-XBR: decoding XBR extension\n");
1738
1739 /* get bit position of sync header */
1740 hdr_pos = get_bits_count(&s->gb) - 32;
1741
1742 hdr_size = get_bits(&s->gb, 6) + 1;
1743 num_chsets = get_bits(&s->gb, 2) + 1;
1744
1745 for(i = 0; i < num_chsets; i++)
1746 chset_fsize[i] = get_bits(&s->gb, 14) + 1;
1747
1748 xbr_tmode = get_bits1(&s->gb);
1749
1750 for(i = 0; i < num_chsets; i++) {
1751 n_xbr_ch[i] = get_bits(&s->gb, 3) + 1;
1752 k = get_bits(&s->gb, 2) + 5;
1753 for(j = 0; j < n_xbr_ch[i]; j++)
1754 active_bands[i][j] = get_bits(&s->gb, k) + 1;
1755 }
1756
1757 /* skip to the end of the header */
1758 i = get_bits_count(&s->gb);
1759 if(hdr_pos + hdr_size * 8 > i)
1760 skip_bits_long(&s->gb, hdr_pos + hdr_size * 8 - i);
1761
1762 /* loop over the channel data sets */
1763 /* only decode as many channels as we've decoded base data for */
1764 for(chset = 0, chan_base = 0;
1765 chset < num_chsets && chan_base + n_xbr_ch[chset] <= s->prim_channels;
1766 chan_base += n_xbr_ch[chset++]) {
1767 int start_posn = get_bits_count(&s->gb);
1768 int subsubframe = 0;
1769 int subframe = 0;
1770
1771 /* loop over subframes */
1772 for (k = 0; k < (s->sample_blocks / 8); k++) {
1773 /* parse header if we're on first subsubframe of a block */
1774 if(subsubframe == 0) {
1775 /* Parse subframe header */
1776 for(i = 0; i < n_xbr_ch[chset]; i++) {
1777 anctemp[i] = get_bits(&s->gb, 2) + 2;
1778 }
1779
1780 for(i = 0; i < n_xbr_ch[chset]; i++) {
1781 get_array(&s->gb, abits_high[i], active_bands[chset][i], anctemp[i]);
1782 }
1783
1784 for(i = 0; i < n_xbr_ch[chset]; i++) {
1785 anctemp[i] = get_bits(&s->gb, 3);
1786 if(anctemp[i] < 1) {
1787 av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: SYNC ERROR\n");
1788 return AVERROR_INVALIDDATA;
1789 }
1790 }
1791
1792 /* generate scale factors */
1793 for(i = 0; i < n_xbr_ch[chset]; i++) {
1794 const uint32_t *scale_table;
1795 int nbits;
1796
1797 if (s->scalefactor_huffman[chan_base+i] == 6) {
1798 scale_table = scale_factor_quant7;
1799 } else {
1800 scale_table = scale_factor_quant6;
1801 }
1802
1803 nbits = anctemp[i];
1804
1805 for(j = 0; j < active_bands[chset][i]; j++) {
1806 if(abits_high[i][j] > 0) {
1807 scale_table_high[i][j][0] =
1808 scale_table[get_bits(&s->gb, nbits)];
1809
1810 if(xbr_tmode && s->transition_mode[i][j]) {
1811 scale_table_high[i][j][1] =
1812 scale_table[get_bits(&s->gb, nbits)];
1813 }
1814 }
1815 }
1816 }
1817 }
1818
1819 /* decode audio array for this block */
1820 for(i = 0; i < n_xbr_ch[chset]; i++) {
1821 for(j = 0; j < active_bands[chset][i]; j++) {
1822 const int xbr_abits = abits_high[i][j];
1823 const float quant_step_size = lossless_quant_d[xbr_abits];
1824 const int sfi = xbr_tmode && s->transition_mode[i][j] && subsubframe >= s->transition_mode[i][j];
1825 const float rscale = quant_step_size * scale_table_high[i][j][sfi];
1826 float *subband_samples = s->subband_samples[k][chan_base+i][j];
1827 int block[8];
1828
1829 if(xbr_abits <= 0)
1830 continue;
1831
1832 if(xbr_abits > 7) {
1833 get_array(&s->gb, block, 8, xbr_abits - 3);
1834 } else {
1835 int block_code1, block_code2, size, levels, err;
1836
1837 size = abits_sizes[xbr_abits - 1];
1838 levels = abits_levels[xbr_abits - 1];
1839
1840 block_code1 = get_bits(&s->gb, size);
1841 block_code2 = get_bits(&s->gb, size);
1842 err = decode_blockcodes(block_code1, block_code2,
1843 levels, block);
1844 if (err) {
1845 av_log(s->avctx, AV_LOG_ERROR,
1846 "ERROR: DTS-XBR: block code look-up failed\n");
1847 return AVERROR_INVALIDDATA;
1848 }
1849 }
1850
1851 /* scale & sum into subband */
1852 for(l = 0; l < 8; l++)
1853 subband_samples[l] += (float)block[l] * rscale;
1854 }
1855 }
1856
1857 /* check DSYNC marker */
1858 if(s->aspf || subsubframe == s->subsubframes[subframe] - 1) {
1859 if(get_bits(&s->gb, 16) != 0xffff) {
1860 av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: Didn't get subframe DSYNC\n");
1861 return AVERROR_INVALIDDATA;
1862 }
1863 }
1864
1865 /* advance sub-sub-frame index */
1866 if(++subsubframe >= s->subsubframes[subframe]) {
1867 subsubframe = 0;
1868 subframe++;
1869 }
1870 }
1871
1872 /* skip to next channel set */
1873 i = get_bits_count(&s->gb);
1874 if(start_posn + chset_fsize[chset] * 8 != i) {
1875 j = start_posn + chset_fsize[chset] * 8 - i;
1876 if(j < 0 || j >= 8)
1877 av_log(s->avctx, AV_LOG_ERROR, "DTS-XBR: end of channel set,"
1878 " skipping further than expected (%d bits)\n", j);
1879 skip_bits_long(&s->gb, j);
1880 }
1881 }
1882
1883 return 0;
1884}
1885
1886/* parse initial header for XXCH and dump details */
1887static int dca_xxch_decode_frame(DCAContext *s)
1888{
1889 int hdr_size, chhdr_crc, spkmsk_bits, num_chsets, core_spk, hdr_pos;
1890 int i, chset, base_channel, chstart, fsize[8];
1891
1892 /* assume header word has already been parsed */
1893 hdr_pos = get_bits_count(&s->gb) - 32;
1894 hdr_size = get_bits(&s->gb, 6) + 1;
1895 chhdr_crc = get_bits1(&s->gb);
1896 spkmsk_bits = get_bits(&s->gb, 5) + 1;
1897 num_chsets = get_bits(&s->gb, 2) + 1;
1898
1899 for (i = 0; i < num_chsets; i++)
1900 fsize[i] = get_bits(&s->gb, 14) + 1;
1901
1902 core_spk = get_bits(&s->gb, spkmsk_bits);
1903 s->xxch_core_spkmask = core_spk;
1904 s->xxch_nbits_spk_mask = spkmsk_bits;
1905 s->xxch_downmix = 0;
1906 s->xxch_dmix_embedded = 0;
1907
1908 /* skip to the end of the header */
1909 i = get_bits_count(&s->gb);
1910 if (hdr_pos + hdr_size * 8 > i)
1911 skip_bits_long(&s->gb, hdr_pos + hdr_size * 8 - i);
1912
1913 for (chset = 0; chset < num_chsets; chset++) {
1914 chstart = get_bits_count(&s->gb);
1915 base_channel = s->prim_channels;
1916 s->xxch_chset = chset;
1917
1918 /* XXCH and Core headers differ, see 6.4.2 "XXCH Channel Set Header" vs.
1919 5.3.2 "Primary Audio Coding Header", DTS Spec 1.3.1 */
1920 dca_parse_audio_coding_header(s, base_channel, 1);
1921
1922 /* decode channel data */
1923 for (i = 0; i < (s->sample_blocks / 8); i++) {
1924 if (dca_decode_block(s, base_channel, i)) {
1925 av_log(s->avctx, AV_LOG_ERROR,
1926 "Error decoding DTS-XXCH extension\n");
1927 continue;
1928 }
1929 }
1930
1931 /* skip to end of this section */
1932 i = get_bits_count(&s->gb);
1933 if (chstart + fsize[chset] * 8 > i)
1934 skip_bits_long(&s->gb, chstart + fsize[chset] * 8 - i);
1935 }
1936 s->xxch_chset = num_chsets;
1937
1938 return 0;
1939}
1940
1941/**
1942 * Parse extension substream header (HD)
1943 */
1944static void dca_exss_parse_header(DCAContext *s)
1945{
1946 int asset_size[8];
1947 int ss_index;
1948 int blownup;
1949 int num_audiop = 1;
1950 int num_assets = 1;
1951 int active_ss_mask[8];
1952 int i, j;
1953 int start_posn;
1954 int hdrsize;
1955 uint32_t mkr;
1956
1957 if (get_bits_left(&s->gb) < 52)
1958 return;
1959
1960 start_posn = get_bits_count(&s->gb) - 32;
1961
1962 skip_bits(&s->gb, 8); // user data
1963 ss_index = get_bits(&s->gb, 2);
1964
1965 blownup = get_bits1(&s->gb);
1966 hdrsize = get_bits(&s->gb, 8 + 4 * blownup) + 1; // header_size
1967 skip_bits(&s->gb, 16 + 4 * blownup); // hd_size
1968
1969 s->static_fields = get_bits1(&s->gb);
1970 if (s->static_fields) {
1971 skip_bits(&s->gb, 2); // reference clock code
1972 skip_bits(&s->gb, 3); // frame duration code
1973
1974 if (get_bits1(&s->gb))
1975 skip_bits_long(&s->gb, 36); // timestamp
1976
1977 /* a single stream can contain multiple audio assets that can be
1978 * combined to form multiple audio presentations */
1979
1980 num_audiop = get_bits(&s->gb, 3) + 1;
1981 if (num_audiop > 1) {
1982 av_log_ask_for_sample(s->avctx, "Multiple DTS-HD audio presentations.");
1983 /* ignore such streams for now */
1984 return;
1985 }
1986
1987 num_assets = get_bits(&s->gb, 3) + 1;
1988 if (num_assets > 1) {
1989 av_log_ask_for_sample(s->avctx, "Multiple DTS-HD audio assets.");
1990 /* ignore such streams for now */
1991 return;
1992 }
1993
1994 for (i = 0; i < num_audiop; i++)
1995 active_ss_mask[i] = get_bits(&s->gb, ss_index + 1);
1996
1997 for (i = 0; i < num_audiop; i++)
1998 for (j = 0; j <= ss_index; j++)
1999 if (active_ss_mask[i] & (1 << j))
2000 skip_bits(&s->gb, 8); // active asset mask
2001
2002 s->mix_metadata = get_bits1(&s->gb);
2003 if (s->mix_metadata) {
2004 int mix_out_mask_size;
2005
2006 skip_bits(&s->gb, 2); // adjustment level
2007 mix_out_mask_size = (get_bits(&s->gb, 2) + 1) << 2;
2008 s->num_mix_configs = get_bits(&s->gb, 2) + 1;
2009
2010 for (i = 0; i < s->num_mix_configs; i++) {
2011 int mix_out_mask = get_bits(&s->gb, mix_out_mask_size);
2012 s->mix_config_num_ch[i] = dca_exss_mask2count(mix_out_mask);
2013 }
2014 }
2015 }
2016
2017 for (i = 0; i < num_assets; i++)
2018 asset_size[i] = get_bits_long(&s->gb, 16 + 4 * blownup);
2019
2020 for (i = 0; i < num_assets; i++) {
2021 if (dca_exss_parse_asset_header(s))
2022 return;
2023 }
2024
2025 /* not parsed further, we were only interested in the extensions mask
2026 * from the asset header */
2027
2028 if (num_assets > 0) {
2029 j = get_bits_count(&s->gb);
2030 if (start_posn + hdrsize * 8 > j)
2031 skip_bits_long(&s->gb, start_posn + hdrsize * 8 - j);
2032
2033 for (i = 0; i < num_assets; i++) {
2034 start_posn = get_bits_count(&s->gb);
2035 mkr = get_bits_long(&s->gb, 32);
2036
2037 /* parse extensions that we know about */
2038 if (mkr == 0x655e315e) {
2039 dca_xbr_parse_frame(s);
2040 } else if (mkr == 0x47004a03) {
2041 dca_xxch_decode_frame(s);
2042 s->core_ext_mask |= DCA_EXT_XXCH; /* xxx use for chan reordering */
2043 } else {
2044 av_log(s->avctx, AV_LOG_DEBUG,
2045 "DTS-ExSS: unknown marker = 0x%08x\n", mkr);
2046 }
2047
2048 /* skip to end of block */
2049 j = get_bits_count(&s->gb);
2050 if (start_posn + asset_size[i] * 8 > j)
2051 skip_bits_long(&s->gb, start_posn + asset_size[i] * 8 - j);
2052 }
2053 }
2054}
2055
2056/**
2057 * Main frame decoding function
2058 * FIXME add arguments
2059 */
2060static int dca_decode_frame(AVCodecContext *avctx, void *data,
2061 int *got_frame_ptr, AVPacket *avpkt)
2062{
2063 const uint8_t *buf = avpkt->data;
2064 int buf_size = avpkt->size;
2065 int channel_mask;
2066 int channel_layout;
2067 int lfe_samples;
2068 int num_core_channels = 0;
2069 int i, ret;
2070 float *samples_flt;
2071 float *src_chan;
2072 float *dst_chan;
2073 int16_t *samples_s16;
2074 DCAContext *s = avctx->priv_data;
2075 int core_ss_end;
2076 int channels;
2077 float scale;
2078 int achan;
2079 int chset;
2080 int mask;
2081 int lavc;
2082 int posn;
2083 int j, k;
2084 int ch;
2085 int endch;
2086
2087 s->xch_present = 0;
2088
2089 s->dca_buffer_size = ff_dca_convert_bitstream(buf, buf_size, s->dca_buffer,
2090 DCA_MAX_FRAME_SIZE + DCA_MAX_EXSS_HEADER_SIZE);
2091 if (s->dca_buffer_size == AVERROR_INVALIDDATA) {
2092 av_log(avctx, AV_LOG_ERROR, "Not a valid DCA frame\n");
2093 return AVERROR_INVALIDDATA;
2094 }
2095
2096 init_get_bits(&s->gb, s->dca_buffer, s->dca_buffer_size * 8);
2097 if ((ret = dca_parse_frame_header(s)) < 0) {
2098 //seems like the frame is corrupt, try with the next one
2099 return ret;
2100 }
2101 //set AVCodec values with parsed data
2102 avctx->sample_rate = s->sample_rate;
2103 avctx->bit_rate = s->bit_rate;
2104
2105 s->profile = FF_PROFILE_DTS;
2106
2107 for (i = 0; i < (s->sample_blocks / 8); i++) {
2108 if ((ret = dca_decode_block(s, 0, i))) {
2109 av_log(avctx, AV_LOG_ERROR, "error decoding block\n");
2110 return ret;
2111 }
2112 }
2113
2114 /* record number of core channels incase less than max channels are requested */
2115 num_core_channels = s->prim_channels;
2116
2117 if (s->ext_coding)
2118 s->core_ext_mask = dca_ext_audio_descr_mask[s->ext_descr];
2119 else
2120 s->core_ext_mask = 0;
2121
2122 core_ss_end = FFMIN(s->frame_size, s->dca_buffer_size) * 8;
2123
2124 /* only scan for extensions if ext_descr was unknown or indicated a
2125 * supported XCh extension */
2126 if (s->core_ext_mask < 0 || s->core_ext_mask & (DCA_EXT_XCH | DCA_EXT_XXCH)) {
2127
2128 /* if ext_descr was unknown, clear s->core_ext_mask so that the
2129 * extensions scan can fill it up */
2130 s->core_ext_mask = FFMAX(s->core_ext_mask, 0);
2131
2132 /* extensions start at 32-bit boundaries into bitstream */
2133 skip_bits_long(&s->gb, (-get_bits_count(&s->gb)) & 31);
2134
2135 while (core_ss_end - get_bits_count(&s->gb) >= 32) {
2136 uint32_t bits = get_bits_long(&s->gb, 32);
2137
2138 switch (bits) {
2139 case 0x5a5a5a5a: {
2140 int ext_amode, xch_fsize;
2141
2142 s->xch_base_channel = s->prim_channels;
2143
2144 /* validate sync word using XCHFSIZE field */
2145 xch_fsize = show_bits(&s->gb, 10);
2146 if ((s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + xch_fsize) &&
2147 (s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + xch_fsize + 1))
2148 continue;
2149
2150 /* skip length-to-end-of-frame field for the moment */
2151 skip_bits(&s->gb, 10);
2152
2153 s->core_ext_mask |= DCA_EXT_XCH;
2154
2155 /* extension amode(number of channels in extension) should be 1 */
2156 /* AFAIK XCh is not used for more channels */
2157 if ((ext_amode = get_bits(&s->gb, 4)) != 1) {
2158 av_log(avctx, AV_LOG_ERROR, "XCh extension amode %d not"
2159 " supported!\n", ext_amode);
2160 continue;
2161 }
2162
2163 /* much like core primary audio coding header */
2164 dca_parse_audio_coding_header(s, s->xch_base_channel, 0);
2165
2166 for (i = 0; i < (s->sample_blocks / 8); i++)
2167 if ((ret = dca_decode_block(s, s->xch_base_channel, i))) {
2168 av_log(avctx, AV_LOG_ERROR, "error decoding XCh extension\n");
2169 continue;
2170 }
2171
2172 s->xch_present = 1;
2173 break;
2174 }
2175 case 0x47004a03:
2176 /* XXCh: extended channels */
2177 /* usually found either in core or HD part in DTS-HD HRA streams,
2178 * but not in DTS-ES which contains XCh extensions instead */
2179 s->core_ext_mask |= DCA_EXT_XXCH;
2180 dca_xxch_decode_frame(s);
2181 break;
2182
2183 case 0x1d95f262: {
2184 int fsize96 = show_bits(&s->gb, 12) + 1;
2185 if (s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + fsize96)
2186 continue;
2187
2188 av_log(avctx, AV_LOG_DEBUG, "X96 extension found at %d bits\n",
2189 get_bits_count(&s->gb));
2190 skip_bits(&s->gb, 12);
2191 av_log(avctx, AV_LOG_DEBUG, "FSIZE96 = %d bytes\n", fsize96);
2192 av_log(avctx, AV_LOG_DEBUG, "REVNO = %d\n", get_bits(&s->gb, 4));
2193
2194 s->core_ext_mask |= DCA_EXT_X96;
2195 break;
2196 }
2197 }
2198
2199 skip_bits_long(&s->gb, (-get_bits_count(&s->gb)) & 31);
2200 }
2201 } else {
2202 /* no supported extensions, skip the rest of the core substream */
2203 skip_bits_long(&s->gb, core_ss_end - get_bits_count(&s->gb));
2204 }
2205
2206 if (s->core_ext_mask & DCA_EXT_X96)
2207 s->profile = FF_PROFILE_DTS_96_24;
2208 else if (s->core_ext_mask & (DCA_EXT_XCH | DCA_EXT_XXCH))
2209 s->profile = FF_PROFILE_DTS_ES;
2210
2211 /* check for ExSS (HD part) */
2212 if (s->dca_buffer_size - s->frame_size > 32 &&
2213 get_bits_long(&s->gb, 32) == DCA_HD_MARKER)
2214 dca_exss_parse_header(s);
2215
2216 avctx->profile = s->profile;
2217
2218 channels = s->prim_channels + !!s->lfe;
2219
2220 /* If we have XXCH then the channel layout is managed differently */
2221 /* note that XLL will also have another way to do things */
2222 if (!(s->core_ext_mask & DCA_EXT_XXCH)
2223 || (s->core_ext_mask & DCA_EXT_XXCH && avctx->request_channels > 0
2224 && avctx->request_channels
2225 < num_core_channels + !!s->lfe + s->xxch_chset_nch[0]))
2226 { /* xxx should also do MA extensions */
2227 if (s->amode < 16) {
2228 avctx->channel_layout = dca_core_channel_layout[s->amode];
2229
2230 if (s->xch_present && (!avctx->request_channels ||
2231 avctx->request_channels
2232 > num_core_channels + !!s->lfe)) {
2233 avctx->channel_layout |= AV_CH_BACK_CENTER;
2234 if (s->lfe) {
2235 avctx->channel_layout |= AV_CH_LOW_FREQUENCY;
2236 s->channel_order_tab = dca_channel_reorder_lfe_xch[s->amode];
2237 } else {
2238 s->channel_order_tab = dca_channel_reorder_nolfe_xch[s->amode];
2239 }
2240 } else {
2241 channels = num_core_channels + !!s->lfe;
2242 s->xch_present = 0; /* disable further xch processing */
2243 if (s->lfe) {
2244 avctx->channel_layout |= AV_CH_LOW_FREQUENCY;
2245 s->channel_order_tab = dca_channel_reorder_lfe[s->amode];
2246 } else
2247 s->channel_order_tab = dca_channel_reorder_nolfe[s->amode];
2248 }
2249
2250 if (channels > !!s->lfe &&
2251 s->channel_order_tab[channels - 1 - !!s->lfe] < 0)
2252 return AVERROR_INVALIDDATA;
2253
2254 if (avctx->request_channels == 2 && s->prim_channels > 2) {
2255 channels = 2;
2256 s->output = DCA_STEREO;
2257 avctx->channel_layout = AV_CH_LAYOUT_STEREO;
2258 }
2259 else if (avctx->request_channel_layout & AV_CH_LAYOUT_NATIVE) {
2260 static const int8_t dca_channel_order_native[9] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 };
2261 s->channel_order_tab = dca_channel_order_native;
2262 }
2263 s->lfe_index = dca_lfe_index[s->amode];
2264 } else {
2265 av_log(avctx, AV_LOG_ERROR,
2266 "Non standard configuration %d !\n", s->amode);
2267 return AVERROR_INVALIDDATA;
2268 }
2269
2270 s->xxch_downmix = 0;
2271 } else {
2272 /* we only get here if an XXCH channel set can be added to the mix */
2273 channel_mask = s->xxch_core_spkmask;
2274
2275 if (avctx->request_channels > 0
2276 && avctx->request_channels < s->prim_channels) {
2277 channels = num_core_channels + !!s->lfe;
2278 for (i = 0; i < s->xxch_chset && channels + s->xxch_chset_nch[i]
2279 <= avctx->request_channels; i++) {
2280 channels += s->xxch_chset_nch[i];
2281 channel_mask |= s->xxch_spk_masks[i];
2282 }
2283 } else {
2284 channels = s->prim_channels + !!s->lfe;
2285 for (i = 0; i < s->xxch_chset; i++) {
2286 channel_mask |= s->xxch_spk_masks[i];
2287 }
2288 }
2289
2290 /* Given the DTS spec'ed channel mask, generate an avcodec version */
2291 channel_layout = 0;
2292 for (i = 0; i < s->xxch_nbits_spk_mask; ++i) {
2293 if (channel_mask & (1 << i)) {
2294 channel_layout |= map_xxch_to_native[i];
2295 }
2296 }
2297
2298 /* make sure that we have managed to get equivelant dts/avcodec channel
2299 * masks in some sense -- unfortunately some channels could overlap */
2300 if (av_popcount(channel_mask) != av_popcount(channel_layout)) {
2301 av_log(avctx, AV_LOG_DEBUG,
2302 "DTS-XXCH: Inconsistant avcodec/dts channel layouts\n");
2303 return AVERROR_INVALIDDATA;
2304 }
2305
2306 avctx->channel_layout = channel_layout;
2307
2308 if (!(avctx->request_channel_layout & AV_CH_LAYOUT_NATIVE)) {
2309 /* Estimate DTS --> avcodec ordering table */
2310 for (chset = -1, j = 0; chset < s->xxch_chset; ++chset) {
2311 mask = chset >= 0 ? s->xxch_spk_masks[chset]
2312 : s->xxch_core_spkmask;
2313 for (i = 0; i < s->xxch_nbits_spk_mask; i++) {
2314 if (mask & ~(DCA_XXCH_LFE1 | DCA_XXCH_LFE2) & (1 << i)) {
2315 lavc = map_xxch_to_native[i];
2316 posn = av_popcount(channel_layout & (lavc - 1));
2317 s->xxch_order_tab[j++] = posn;
2318 }
2319 }
2320 }
2321
2322 s->lfe_index = av_popcount(channel_layout & (AV_CH_LOW_FREQUENCY-1));
2323 } else { /* native ordering */
2324 for (i = 0; i < channels; i++)
2325 s->xxch_order_tab[i] = i;
2326
2327 s->lfe_index = channels - 1;
2328 }
2329
2330 s->channel_order_tab = s->xxch_order_tab;
2331 }
2332
2333 if (avctx->channels != channels) {
2334 if (avctx->channels)
2335 av_log(avctx, AV_LOG_INFO, "Number of channels changed in DCA decoder (%d -> %d)\n", avctx->channels, channels);
2336 avctx->channels = channels;
2337 }
2338
2339 /* get output buffer */
2340 s->frame.nb_samples = 256 * (s->sample_blocks / 8);
2341 if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {
2342 av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
2343 return ret;
2344 }
2345 samples_flt = (float *) s->frame.data[0];
2346 samples_s16 = (int16_t *) s->frame.data[0];
2347
2348 /* filter to get final output */
2349 for (i = 0; i < (s->sample_blocks / 8); i++) {
2350 dca_filter_channels(s, i);
2351
2352 /* If this was marked as a DTS-ES stream we need to subtract back- */
2353 /* channel from SL & SR to remove matrixed back-channel signal */
2354 if ((s->source_pcm_res & 1) && s->xch_present) {
2355 float *back_chan = s->samples + s->channel_order_tab[s->xch_base_channel] * 256;
2356 float *lt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 2] * 256;
2357 float *rt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 1] * 256;
2358 s->fdsp.vector_fmac_scalar(lt_chan, back_chan, -M_SQRT1_2, 256);
2359 s->fdsp.vector_fmac_scalar(rt_chan, back_chan, -M_SQRT1_2, 256);
2360 }
2361
2362 /* If stream contains XXCH, we might need to undo an embedded downmix */
2363 if (s->xxch_dmix_embedded) {
2364 /* Loop over channel sets in turn */
2365 ch = num_core_channels;
2366 for (chset = 0; chset < s->xxch_chset; chset++) {
2367 endch = ch + s->xxch_chset_nch[chset];
2368 mask = s->xxch_dmix_embedded;
2369
2370 /* undo downmix */
2371 for (j = ch; j < endch; j++) {
2372 if (mask & (1 << j)) { /* this channel has been mixed-out */
2373 src_chan = s->samples + s->channel_order_tab[j] * 256;
2374 for (k = 0; k < endch; k++) {
2375 achan = s->channel_order_tab[k];
2376 scale = s->xxch_dmix_coeff[j][k];
2377 if (scale != 0.0) {
2378 dst_chan = s->samples + achan * 256;
2379 s->fdsp.vector_fmac_scalar(dst_chan, src_chan,
2380 -scale, 256);
2381 }
2382 }
2383 }
2384 }
2385
2386 /* if a downmix has been embedded then undo the pre-scaling */
2387 if ((mask & (1 << ch)) && s->xxch_dmix_sf[chset] != 1.0f) {
2388 scale = s->xxch_dmix_sf[chset];
2389
2390 for (j = 0; j < ch; j++) {
2391 src_chan = s->samples + s->channel_order_tab[j] * 256;
2392 for (k = 0; k < 256; k++)
2393 src_chan[k] *= scale;
2394 }
2395
2396 /* LFE channel is always part of core, scale if it exists */
2397 if (s->lfe) {
2398 src_chan = s->samples + s->lfe_index * 256;
2399 for (k = 0; k < 256; k++)
2400 src_chan[k] *= scale;
2401 }
2402 }
2403
2404 ch = endch;
2405 }
2406
2407 }
2408
2409 if (avctx->sample_fmt == AV_SAMPLE_FMT_FLT) {
2410 s->fmt_conv.float_interleave(samples_flt, s->samples_chanptr, 256,
2411 channels);
2412 samples_flt += 256 * channels;
2413 } else {
2414 s->fmt_conv.float_to_int16_interleave(samples_s16,
2415 s->samples_chanptr, 256,
2416 channels);
2417 samples_s16 += 256 * channels;
2418 }
2419 }
2420
2421 /* update lfe history */
2422 lfe_samples = 2 * s->lfe * (s->sample_blocks / 8);
2423 for (i = 0; i < 2 * s->lfe * 4; i++)
2424 s->lfe_data[i] = s->lfe_data[i + lfe_samples];
2425
2426 *got_frame_ptr = 1;
2427 *(AVFrame *) data = s->frame;
2428
2429 return buf_size;
2430}
2431
2432
2433
2434/**
2435 * DCA initialization
2436 *
2437 * @param avctx pointer to the AVCodecContext
2438 */
2439
2440static av_cold int dca_decode_init(AVCodecContext *avctx)
2441{
2442 DCAContext *s = avctx->priv_data;
2443 int i;
2444
2445 s->avctx = avctx;
2446 dca_init_vlcs();
2447
2448 avpriv_float_dsp_init(&s->fdsp, avctx->flags & CODEC_FLAG_BITEXACT);
2449 ff_mdct_init(&s->imdct, 6, 1, 1.0);
2450 ff_synth_filter_init(&s->synth);
2451 ff_dcadsp_init(&s->dcadsp);
2452 ff_fmt_convert_init(&s->fmt_conv, avctx);
2453
2454 for (i = 0; i < DCA_PRIM_CHANNELS_MAX + 1; i++)
2455 s->samples_chanptr[i] = s->samples + i * 256;
2456
2457 if (avctx->request_sample_fmt == AV_SAMPLE_FMT_FLT) {
2458 avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
2459 s->scale_bias = 1.0 / 32768.0;
2460 } else {
2461 avctx->sample_fmt = AV_SAMPLE_FMT_S16;
2462 s->scale_bias = 1.0;
2463 }
2464
2465 /* allow downmixing to stereo */
2466 if (avctx->channels > 0 && avctx->request_channels < avctx->channels &&
2467 avctx->request_channels == 2) {
2468 avctx->channels = avctx->request_channels;
2469 }
2470
2471 avcodec_get_frame_defaults(&s->frame);
2472 avctx->coded_frame = &s->frame;
2473
2474 return 0;
2475}
2476
2477static av_cold int dca_decode_end(AVCodecContext *avctx)
2478{
2479 DCAContext *s = avctx->priv_data;
2480 ff_mdct_end(&s->imdct);
2481 return 0;
2482}
2483
2484static const AVProfile profiles[] = {
2485 { FF_PROFILE_DTS, "DTS" },
2486 { FF_PROFILE_DTS_ES, "DTS-ES" },
2487 { FF_PROFILE_DTS_96_24, "DTS 96/24" },
2488 { FF_PROFILE_DTS_HD_HRA, "DTS-HD HRA" },
2489 { FF_PROFILE_DTS_HD_MA, "DTS-HD MA" },
2490 { FF_PROFILE_UNKNOWN },
2491};
2492
2493AVCodec ff_dca_decoder = {
2494 .name = "dca",
2495 .type = AVMEDIA_TYPE_AUDIO,
2496 .id = CODEC_ID_DTS,
2497 .priv_data_size = sizeof(DCAContext),
2498 .init = dca_decode_init,
2499 .decode = dca_decode_frame,
2500 .close = dca_decode_end,
2501 .long_name = NULL_IF_CONFIG_SMALL("DCA (DTS Coherent Acoustics)"),
2502 .capabilities = CODEC_CAP_CHANNEL_CONF | CODEC_CAP_DR1,
2503 .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLT,
2504 AV_SAMPLE_FMT_S16,
2505 AV_SAMPLE_FMT_NONE },
2506 .profiles = NULL_IF_CONFIG_SMALL(profiles),
2507};
libavcodec/dcaenc.c+3−2
@@ -30,6 +30,7 @@ · 29 unmodified lines
30#include "put_bits.h"30#include "put_bits.h"
31#include "dcaenc.h"31#include "dcaenc.h"
32#include "dcadata.h"32#include "dcadata.h"
33#include "dca.h"
33 34
34#undef NDEBUG35#undef NDEBUG
35 36
@@ -569,13 +570,13 @@ static int encode_init(AVCodecContext *avctx) · 533 unmodified lines
569 }570 }
570 571
571 for (i = 0; i < 16; i++) {572 for (i = 0; i < 16; i++) {
572 if (dca_sample_rates[i] && (dca_sample_rates[i] == avctx->sample_rate))573 if (avpriv_dca_sample_rates[i] && (avpriv_dca_sample_rates[i] == avctx->sample_rate))
573 break;574 break;
574 }575 }
575 if (i == 16) {576 if (i == 16) {
576 av_log(avctx, AV_LOG_ERROR, "Sample rate %iHz not supported, only ", avctx->sample_rate);577 av_log(avctx, AV_LOG_ERROR, "Sample rate %iHz not supported, only ", avctx->sample_rate);
577 for (i = 0; i < 16; i++)578 for (i = 0; i < 16; i++)
578 av_log(avctx, AV_LOG_ERROR, "%d, ", dca_sample_rates[i]);579 av_log(avctx, AV_LOG_ERROR, "%d, ", avpriv_dca_sample_rates[i]);
579 av_log(avctx, AV_LOG_ERROR, "supported.\n");580 av_log(avctx, AV_LOG_ERROR, "supported.\n");
580 return -1;581 return -1;
581 }582 }
libavcodec/dct-test.c+1−1
@@ -85,7 +85,7 @@ static const struct algo fdct_tab[] = { · 84 unmodified lines
85 { "IJG-AAN-INT", ff_fdct_ifast, SCALE_PERM },85 { "IJG-AAN-INT", ff_fdct_ifast, SCALE_PERM },
86 { "IJG-LLM-INT", ff_jpeg_fdct_islow_8, NO_PERM },86 { "IJG-LLM-INT", ff_jpeg_fdct_islow_8, NO_PERM },
87 87
88#if HAVE_MMX88#if HAVE_MMX && HAVE_INLINE_ASM
89 { "MMX", ff_fdct_mmx, NO_PERM, AV_CPU_FLAG_MMX },89 { "MMX", ff_fdct_mmx, NO_PERM, AV_CPU_FLAG_MMX },
90 { "MMX2", ff_fdct_mmx2, NO_PERM, AV_CPU_FLAG_MMX2 },90 { "MMX2", ff_fdct_mmx2, NO_PERM, AV_CPU_FLAG_MMX2 },
91 { "SSE2", ff_fdct_sse2, NO_PERM, AV_CPU_FLAG_SSE2 },91 { "SSE2", ff_fdct_sse2, NO_PERM, AV_CPU_FLAG_SSE2 },
libavcodec/x86/dsputilenc_mmx.c+47−33
@@ -30,6 +30,8 @@ · 29 unmodified lines
30#include "dsputil_mmx.h"30#include "dsputil_mmx.h"
31 31
32 32
33#if HAVE_INLINE_ASM
34
33static void get_pixels_mmx(DCTELEM *block, const uint8_t *pixels, int line_size)35static void get_pixels_mmx(DCTELEM *block, const uint8_t *pixels, int line_size)
34{36{
35 __asm__ volatile(37 __asm__ volatile(
@@ -323,8 +325,6 @@ static int sse16_mmx(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int · 287 unmodified lines
323 return tmp;325 return tmp;
324}326}
325 327
326int ff_sse16_sse2(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);
327
328static int hf_noise8_mmx(uint8_t * pix1, int line_size, int h) {328static int hf_noise8_mmx(uint8_t * pix1, int line_size, int h) {
329 int tmp;329 int tmp;
330 __asm__ volatile (330 __asm__ volatile (
@@ -926,17 +926,6 @@ static void sub_hfyu_median_prediction_mmx2(uint8_t *dst, const uint8_t *src1, c · 595 unmodified lines
926 "paddusw "#t", "#a" \n\t"\926 "paddusw "#t", "#a" \n\t"\
927 "movd "#a", "#dst" \n\t"\927 "movd "#a", "#dst" \n\t"\
928 928
929#define hadamard_func(cpu) \
930int ff_hadamard8_diff_##cpu (void *s, uint8_t *src1, uint8_t *src2, \
931 int stride, int h); \
932int ff_hadamard8_diff16_##cpu(void *s, uint8_t *src1, uint8_t *src2, \
933 int stride, int h);
934
935hadamard_func(mmx)
936hadamard_func(mmx2)
937hadamard_func(sse2)
938hadamard_func(ssse3)
939
940#define DCT_SAD4(m,mm,o)\929#define DCT_SAD4(m,mm,o)\
941 "mov"#m" "#o"+ 0(%1), "#mm"2 \n\t"\930 "mov"#m" "#o"+ 0(%1), "#mm"2 \n\t"\
942 "mov"#m" "#o"+16(%1), "#mm"3 \n\t"\931 "mov"#m" "#o"+16(%1), "#mm"3 \n\t"\
@@ -1095,10 +1084,26 @@ static int ssd_int8_vs_int16_mmx(const int8_t *pix1, const int16_t *pix2, int si · 152 unmodified lines
1095#undef PHADDD1084#undef PHADDD
1096#endif //HAVE_SSSE31085#endif //HAVE_SSSE3
1097 1086
1087#endif /* HAVE_INLINE_ASM */
1088
1089int ff_sse16_sse2(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);
1090
1091#define hadamard_func(cpu) \
1092int ff_hadamard8_diff_##cpu (void *s, uint8_t *src1, uint8_t *src2, \
1093 int stride, int h); \
1094int ff_hadamard8_diff16_##cpu(void *s, uint8_t *src1, uint8_t *src2, \
1095 int stride, int h);
1096
1097hadamard_func(mmx)
1098hadamard_func(mmx2)
1099hadamard_func(sse2)
1100hadamard_func(ssse3)
1098 1101
1099void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx)1102void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx)
1100{1103{
1101 int mm_flags = av_get_cpu_flags();1104 int mm_flags = av_get_cpu_flags();
1105
1106#if HAVE_INLINE_ASM
1102 int bit_depth = avctx->bits_per_raw_sample;1107 int bit_depth = avctx->bits_per_raw_sample;
1103 1108
1104 if (mm_flags & AV_CPU_FLAG_MMX) {1109 if (mm_flags & AV_CPU_FLAG_MMX) {
@@ -1122,11 +1127,6 @@ void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx) · 17 unmodified lines
1122 c->diff_bytes= diff_bytes_mmx;1127 c->diff_bytes= diff_bytes_mmx;
1123 c->sum_abs_dctelem= sum_abs_dctelem_mmx;1128 c->sum_abs_dctelem= sum_abs_dctelem_mmx;
1124 1129
1125#if HAVE_YASM
1126 c->hadamard8_diff[0]= ff_hadamard8_diff16_mmx;
1127 c->hadamard8_diff[1]= ff_hadamard8_diff_mmx;
1128#endif
1129
1130 c->pix_norm1 = pix_norm1_mmx;1130 c->pix_norm1 = pix_norm1_mmx;
1131 c->sse[0] = sse16_mmx;1131 c->sse[0] = sse16_mmx;
1132 c->sse[1] = sse8_mmx;1132 c->sse[1] = sse8_mmx;
@@ -1147,10 +1147,6 @@ void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx) · 14 unmodified lines
1147 1147
1148 1148
1149 if (mm_flags & AV_CPU_FLAG_MMX2) {1149 if (mm_flags & AV_CPU_FLAG_MMX2) {
1150#if HAVE_YASM
1151 c->hadamard8_diff[0]= ff_hadamard8_diff16_mmx2;
1152 c->hadamard8_diff[1]= ff_hadamard8_diff_mmx2;
1153#endif
1154 c->sum_abs_dctelem= sum_abs_dctelem_mmx2;1150 c->sum_abs_dctelem= sum_abs_dctelem_mmx2;
1155 c->vsad[4]= vsad_intra16_mmx2;1151 c->vsad[4]= vsad_intra16_mmx2;
1156 1152
@@ -1165,13 +1161,6 @@ void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx) · 8 unmodified lines
1165 if (bit_depth <= 8)1161 if (bit_depth <= 8)
1166 c->get_pixels = get_pixels_sse2;1162 c->get_pixels = get_pixels_sse2;
1167 c->sum_abs_dctelem= sum_abs_dctelem_sse2;1163 c->sum_abs_dctelem= sum_abs_dctelem_sse2;
1168#if HAVE_YASM
1169 c->sse[0] = ff_sse16_sse2;
1170#if HAVE_ALIGNED_STACK
1171 c->hadamard8_diff[0]= ff_hadamard8_diff16_sse2;
1172 c->hadamard8_diff[1]= ff_hadamard8_diff_sse2;
1173#endif
1174#endif
1175 }1164 }
1176 1165
1177#if HAVE_SSSE31166#if HAVE_SSSE3
@@ -1181,10 +1170,6 @@ void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx) · 3 unmodified lines
1181 }1170 }
1182 c->add_8x8basis= add_8x8basis_ssse3;1171 c->add_8x8basis= add_8x8basis_ssse3;
1183 c->sum_abs_dctelem= sum_abs_dctelem_ssse3;1172 c->sum_abs_dctelem= sum_abs_dctelem_ssse3;
1184#if HAVE_YASM && HAVE_ALIGNED_STACK
1185 c->hadamard8_diff[0]= ff_hadamard8_diff16_ssse3;
1186 c->hadamard8_diff[1]= ff_hadamard8_diff_ssse3;
1187#endif
1188 }1173 }
1189#endif1174#endif
1190 1175
@@ -1195,6 +1180,35 @@ void ff_dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx) · 4 unmodified lines
1195 c->add_8x8basis= add_8x8basis_3dnow;1180 c->add_8x8basis= add_8x8basis_3dnow;
1196 }1181 }
1197 }1182 }
1183#endif /* HAVE_INLINE_ASM */
1184
1185#if HAVE_YASM
1186 if (mm_flags & AV_CPU_FLAG_MMX) {
1187 c->hadamard8_diff[0] = ff_hadamard8_diff16_mmx;
1188 c->hadamard8_diff[1] = ff_hadamard8_diff_mmx;
1189
1190 if (mm_flags & AV_CPU_FLAG_MMX2) {
1191 c->hadamard8_diff[0] = ff_hadamard8_diff16_mmx2;
1192 c->hadamard8_diff[1] = ff_hadamard8_diff_mmx2;
1193 }
1194
1195 if (mm_flags & AV_CPU_FLAG_SSE2){
1196 c->sse[0] = ff_sse16_sse2;
1197
1198#if HAVE_ALIGNED_STACK
1199 c->hadamard8_diff[0] = ff_hadamard8_diff16_sse2;
1200 c->hadamard8_diff[1] = ff_hadamard8_diff_sse2;
1201#endif
1202 }
1203
1204#if HAVE_SSSE3 && HAVE_ALIGNED_STACK
1205 if (mm_flags & AV_CPU_FLAG_SSSE3) {
1206 c->hadamard8_diff[0] = ff_hadamard8_diff16_ssse3;
1207 c->hadamard8_diff[1] = ff_hadamard8_diff_ssse3;
1208 }
1209#endif
1210 }
1211#endif /* HAVE_YASM */
1198 1212
1199 ff_dsputil_init_pix_mmx(c, avctx);1213 ff_dsputil_init_pix_mmx(c, avctx);
1200}1214}
libavcodec/x86/fdct_mmx.c+4−0
@@ -34,6 +34,8 @@ · 33 unmodified lines
34#include "libavutil/x86_cpu.h"34#include "libavutil/x86_cpu.h"
35#include "libavcodec/dsputil.h"35#include "libavcodec/dsputil.h"
36 36
37#if HAVE_INLINE_ASM
38
37//////////////////////////////////////////////////////////////////////39//////////////////////////////////////////////////////////////////////
38//40//
39// constants for the forward DCT41// constants for the forward DCT
@@ -579,3 +581,5 @@ void ff_fdct_sse2(int16_t *block) · 539 unmodified lines
579 fdct_col_sse2(block, block1, 0);581 fdct_col_sse2(block, block1, 0);
580 fdct_row_sse2(block1, block);582 fdct_row_sse2(block1, block);
581}583}
584
585#endif /* HAVE_INLINE_ASM */
libavcodec/x86/fft.c+2−0
@@ -25,6 +25,7 @@ av_cold void ff_fft_init_mmx(FFTContext *s) · 24 unmodified lines
25{25{
26#if HAVE_YASM26#if HAVE_YASM
27 int has_vectors = av_get_cpu_flags();27 int has_vectors = av_get_cpu_flags();
28#if ARCH_X86_32
28 if (has_vectors & AV_CPU_FLAG_3DNOW && HAVE_AMD3DNOW) {29 if (has_vectors & AV_CPU_FLAG_3DNOW && HAVE_AMD3DNOW) {
29 /* 3DNow! for K6-2/3 */30 /* 3DNow! for K6-2/3 */
30 s->imdct_calc = ff_imdct_calc_3dnow;31 s->imdct_calc = ff_imdct_calc_3dnow;
@@ -37,6 +38,7 @@ av_cold void ff_fft_init_mmx(FFTContext *s) · 6 unmodified lines
37 s->imdct_half = ff_imdct_half_3dnow2;38 s->imdct_half = ff_imdct_half_3dnow2;
38 s->fft_calc = ff_fft_calc_3dnow2;39 s->fft_calc = ff_fft_calc_3dnow2;
39 }40 }
41#endif
40 if (has_vectors & AV_CPU_FLAG_SSE && HAVE_SSE) {42 if (has_vectors & AV_CPU_FLAG_SSE && HAVE_SSE) {
41 /* SSE for P3/P4/K8 */43 /* SSE for P3/P4/K8 */
42 s->imdct_calc = ff_imdct_calc_sse;44 s->imdct_calc = ff_imdct_calc_sse;
libavcodec/x86/h264dsp_mmx.c+0−2
@@ -23,8 +23,6 @@ · 22 unmodified lines
23#include "libavcodec/h264dsp.h"23#include "libavcodec/h264dsp.h"
24#include "dsputil_mmx.h"24#include "dsputil_mmx.h"
25 25
26DECLARE_ALIGNED(8, static const uint64_t, ff_pb_3_1 ) = 0x0103010301030103ULL;
27
28/***********************************/26/***********************************/
29/* IDCT */27/* IDCT */
30#define IDCT_ADD_FUNC(NUM, DEPTH, OPT) \28#define IDCT_ADD_FUNC(NUM, DEPTH, OPT) \
libavcodec/x86/motion_est_mmx.c+6−0
@@ -26,6 +26,8 @@ · 25 unmodified lines
26#include "libavcodec/dsputil.h"26#include "libavcodec/dsputil.h"
27#include "dsputil_mmx.h"27#include "dsputil_mmx.h"
28 28
29#if HAVE_INLINE_ASM
30
29DECLARE_ASM_CONST(8, uint64_t, round_tab)[3]={31DECLARE_ASM_CONST(8, uint64_t, round_tab)[3]={
300x0000000000000000ULL,320x0000000000000000ULL,
310x0001000100010001ULL,330x0001000100010001ULL,
@@ -422,8 +424,11 @@ static int sad16_xy2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, · 390 unmodified lines
422PIX_SAD(mmx)424PIX_SAD(mmx)
423PIX_SAD(mmx2)425PIX_SAD(mmx2)
424 426
427#endif /* HAVE_INLINE_ASM */
428
425void ff_dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx)429void ff_dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx)
426{430{
431#if HAVE_INLINE_ASM
427 int mm_flags = av_get_cpu_flags();432 int mm_flags = av_get_cpu_flags();
428 433
429 if (mm_flags & AV_CPU_FLAG_MMX) {434 if (mm_flags & AV_CPU_FLAG_MMX) {
@@ -458,4 +463,5 @@ void ff_dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx) · 28 unmodified lines
458 if ((mm_flags & AV_CPU_FLAG_SSE2) && !(mm_flags & AV_CPU_FLAG_3DNOW) && avctx->codec_id != CODEC_ID_SNOW) {463 if ((mm_flags & AV_CPU_FLAG_SSE2) && !(mm_flags & AV_CPU_FLAG_3DNOW) && avctx->codec_id != CODEC_ID_SNOW) {
459 c->sad[0]= sad16_sse2;464 c->sad[0]= sad16_sse2;
460 }465 }
466#endif /* HAVE_INLINE_ASM */
461}467}
libavcodec/x86/mpegvideo_mmx.c+6−0
@@ -29,6 +29,8 @@ · 28 unmodified lines
29#include "libavcodec/mpegvideo.h"29#include "libavcodec/mpegvideo.h"
30#include "dsputil_mmx.h"30#include "dsputil_mmx.h"
31 31
32#if HAVE_INLINE_ASM
33
32extern uint16_t ff_inv_zigzag_direct16[64];34extern uint16_t ff_inv_zigzag_direct16[64];
33 35
34 36
@@ -626,8 +628,11 @@ static void denoise_dct_sse2(MpegEncContext *s, DCTELEM *block){ · 591 unmodified lines
626#include "mpegvideo_mmx_template.c"628#include "mpegvideo_mmx_template.c"
627#endif629#endif
628 630
631#endif /* HAVE_INLINE_ASM */
632
629void ff_MPV_common_init_mmx(MpegEncContext *s)633void ff_MPV_common_init_mmx(MpegEncContext *s)
630{634{
635#if HAVE_INLINE_ASM
631 int mm_flags = av_get_cpu_flags();636 int mm_flags = av_get_cpu_flags();
632 637
633 if (mm_flags & AV_CPU_FLAG_MMX) {638 if (mm_flags & AV_CPU_FLAG_MMX) {
@@ -662,4 +667,5 @@ void ff_MPV_common_init_mmx(MpegEncContext *s) · 28 unmodified lines
662 }667 }
663 }668 }
664 }669 }
670#endif /* HAVE_INLINE_ASM */
665}671}
libavformat/spdifenc.c+1−2
@@ -49,7 +49,6 @@ · 48 unmodified lines
49#include "spdif.h"49#include "spdif.h"
50#include "libavcodec/ac3.h"50#include "libavcodec/ac3.h"
51#include "libavcodec/dca.h"51#include "libavcodec/dca.h"
52#include "libavcodec/dcadata.h"
53#include "libavcodec/aacadtsdec.h"52#include "libavcodec/aacadtsdec.h"
54#include "libavutil/opt.h"53#include "libavutil/opt.h"
55 54
@@ -253,7 +252,7 @@ static int spdif_header_dts(AVFormatContext *s, AVPacket *pkt) · 197 unmodified lines
253 case DCA_MARKER_RAW_BE:252 case DCA_MARKER_RAW_BE:
254 blocks = (AV_RB16(pkt->data + 4) >> 2) & 0x7f;253 blocks = (AV_RB16(pkt->data + 4) >> 2) & 0x7f;
255 core_size = ((AV_RB24(pkt->data + 5) >> 4) & 0x3fff) + 1;254 core_size = ((AV_RB24(pkt->data + 5) >> 4) & 0x3fff) + 1;
256 sample_rate = dca_sample_rates[(pkt->data[8] >> 2) & 0x0f];255 sample_rate = avpriv_dca_sample_rates[(pkt->data[8] >> 2) & 0x0f];
257 break;256 break;
258 case DCA_MARKER_RAW_LE:257 case DCA_MARKER_RAW_LE:
259 blocks = (AV_RL16(pkt->data + 4) >> 2) & 0x7f;258 blocks = (AV_RL16(pkt->data + 4) >> 2) & 0x7f;

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