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ARM: libswresample: NEON optimised generic fltp to s16 conversion

Adapted to swr by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Mans Rullgard committed 14 years ago

Commit 7e3208a1 parent 97599f82 files · +242 −0Browse files

Showing the changes to libswresample (2 of 2 files). Show all

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2 files
  1. libswresample/arm/audio_convert_init.c +9 −0
  2. libswresample/arm/audio_convert_neon.S +233 −0
libswresample/arm/audio_convert_init.c+9−0
@@ -28,6 +28,7 @@ · 27 unmodified lines
28 28
29void swri_oldapi_conv_flt_to_s16_neon(int16_t *dst, const float *src, int len);29void swri_oldapi_conv_flt_to_s16_neon(int16_t *dst, const float *src, int len);
30void swri_oldapi_conv_fltp_to_s16_2ch_neon(int16_t *dst, float *const *src, int len, int channels);30void swri_oldapi_conv_fltp_to_s16_2ch_neon(int16_t *dst, float *const *src, int len, int channels);
31void swri_oldapi_conv_fltp_to_s16_nch_neon(int16_t *dst, float *const *src, int len, int channels);
31 32
32static void conv_flt_to_s16_neon(uint8_t **dst, const uint8_t **src, int len){33static void conv_flt_to_s16_neon(uint8_t **dst, const uint8_t **src, int len){
33 swri_oldapi_conv_flt_to_s16_neon((int16_t*)*dst, (const float*)*src, len);34 swri_oldapi_conv_flt_to_s16_neon((int16_t*)*dst, (const float*)*src, len);
@@ -37,6 +38,12 @@ static void conv_fltp_to_s16_2ch_neon(uint8_t **dst, const uint8_t **src, int le · 3 unmodified lines
37 swri_oldapi_conv_fltp_to_s16_2ch_neon((int16_t*)*dst, (float *const*)src, len, 2);38 swri_oldapi_conv_fltp_to_s16_2ch_neon((int16_t*)*dst, (float *const*)src, len, 2);
38}39}
39 40
41static void conv_fltp_to_s16_nch_neon(uint8_t **dst, const uint8_t **src, int len){
42 int channels;
43 for(channels=3; channels<SWR_CH_MAX && src[channels]; channels++)
44 ;
45 swri_oldapi_conv_fltp_to_s16_nch_neon((int16_t*)*dst, (float *const*)src, len, channels);
46}
40 47
41av_cold void swri_audio_convert_init_arm(struct AudioConvert *ac,48av_cold void swri_audio_convert_init_arm(struct AudioConvert *ac,
42 enum AVSampleFormat out_fmt,49 enum AVSampleFormat out_fmt,
@@ -52,5 +59,7 @@ av_cold void swri_audio_convert_init_arm(struct AudioConvert *ac, · 9 unmodified lines
52 ac->simd_f = conv_flt_to_s16_neon;59 ac->simd_f = conv_flt_to_s16_neon;
53 if(out_fmt == AV_SAMPLE_FMT_S16 && in_fmt == AV_SAMPLE_FMT_FLTP && channels == 2)60 if(out_fmt == AV_SAMPLE_FMT_S16 && in_fmt == AV_SAMPLE_FMT_FLTP && channels == 2)
54 ac->simd_f = conv_fltp_to_s16_2ch_neon;61 ac->simd_f = conv_fltp_to_s16_2ch_neon;
62 if(out_fmt == AV_SAMPLE_FMT_S16 && in_fmt == AV_SAMPLE_FMT_FLTP && channels > 2)
63 ac->simd_f = conv_fltp_to_s16_nch_neon;
55 }64 }
56}65}
libswresample/arm/audio_convert_neon.S+233−0
@@ -128,3 +128,236 @@ function swri_oldapi_conv_fltp_to_s16_2ch_neon, export=1 · 127 unmodified lines
128 vst1.16 {q10-q11},[r0,:128]!128 vst1.16 {q10-q11},[r0,:128]!
129 bx lr129 bx lr
130endfunc130endfunc
131
132function swri_oldapi_conv_fltp_to_s16_nch_neon, export=1
133 cmp r3, #2
134 itt lt
135 ldrlt r1, [r1]
136 blt swri_oldapi_conv_flt_to_s16_neon
137 beq swri_oldapi_conv_fltp_to_s16_2ch_neon
138
139 push {r4-r8, lr}
140 cmp r3, #4
141 lsl r12, r3, #1
142 blt 4f
143
144 @ 4 channels
1455: ldm r1!, {r4-r7}
146 mov lr, r2
147 mov r8, r0
148 vld1.32 {q8}, [r4,:128]!
149 vcvt.s32.f32 q8, q8, #31
150 vld1.32 {q9}, [r5,:128]!
151 vcvt.s32.f32 q9, q9, #31
152 vld1.32 {q10}, [r6,:128]!
153 vcvt.s32.f32 q10, q10, #31
154 vld1.32 {q11}, [r7,:128]!
155 vcvt.s32.f32 q11, q11, #31
1566: subs lr, lr, #8
157 vld1.32 {q0}, [r4,:128]!
158 vcvt.s32.f32 q0, q0, #31
159 vsri.32 q9, q8, #16
160 vld1.32 {q1}, [r5,:128]!
161 vcvt.s32.f32 q1, q1, #31
162 vsri.32 q11, q10, #16
163 vld1.32 {q2}, [r6,:128]!
164 vcvt.s32.f32 q2, q2, #31
165 vzip.32 d18, d22
166 vld1.32 {q3}, [r7,:128]!
167 vcvt.s32.f32 q3, q3, #31
168 vzip.32 d19, d23
169 vst1.16 {d18}, [r8], r12
170 vsri.32 q1, q0, #16
171 vst1.16 {d22}, [r8], r12
172 vsri.32 q3, q2, #16
173 vst1.16 {d19}, [r8], r12
174 vzip.32 d2, d6
175 vst1.16 {d23}, [r8], r12
176 vzip.32 d3, d7
177 beq 7f
178 vld1.32 {q8}, [r4,:128]!
179 vcvt.s32.f32 q8, q8, #31
180 vst1.16 {d2}, [r8], r12
181 vld1.32 {q9}, [r5,:128]!
182 vcvt.s32.f32 q9, q9, #31
183 vst1.16 {d6}, [r8], r12
184 vld1.32 {q10}, [r6,:128]!
185 vcvt.s32.f32 q10, q10, #31
186 vst1.16 {d3}, [r8], r12
187 vld1.32 {q11}, [r7,:128]!
188 vcvt.s32.f32 q11, q11, #31
189 vst1.16 {d7}, [r8], r12
190 b 6b
1917: vst1.16 {d2}, [r8], r12
192 vst1.16 {d6}, [r8], r12
193 vst1.16 {d3}, [r8], r12
194 vst1.16 {d7}, [r8], r12
195 subs r3, r3, #4
196 it eq
197 popeq {r4-r8, pc}
198 cmp r3, #4
199 add r0, r0, #8
200 bge 5b
201
202 @ 2 channels
2034: cmp r3, #2
204 blt 4f
205 ldm r1!, {r4-r5}
206 mov lr, r2
207 mov r8, r0
208 tst lr, #8
209 vld1.32 {q8}, [r4,:128]!
210 vcvt.s32.f32 q8, q8, #31
211 vld1.32 {q9}, [r5,:128]!
212 vcvt.s32.f32 q9, q9, #31
213 vld1.32 {q10}, [r4,:128]!
214 vcvt.s32.f32 q10, q10, #31
215 vld1.32 {q11}, [r5,:128]!
216 vcvt.s32.f32 q11, q11, #31
217 beq 6f
218 subs lr, lr, #8
219 beq 7f
220 vsri.32 d18, d16, #16
221 vsri.32 d19, d17, #16
222 vld1.32 {q8}, [r4,:128]!
223 vcvt.s32.f32 q8, q8, #31
224 vst1.32 {d18[0]}, [r8], r12
225 vsri.32 d22, d20, #16
226 vst1.32 {d18[1]}, [r8], r12
227 vsri.32 d23, d21, #16
228 vst1.32 {d19[0]}, [r8], r12
229 vst1.32 {d19[1]}, [r8], r12
230 vld1.32 {q9}, [r5,:128]!
231 vcvt.s32.f32 q9, q9, #31
232 vst1.32 {d22[0]}, [r8], r12
233 vst1.32 {d22[1]}, [r8], r12
234 vld1.32 {q10}, [r4,:128]!
235 vcvt.s32.f32 q10, q10, #31
236 vst1.32 {d23[0]}, [r8], r12
237 vst1.32 {d23[1]}, [r8], r12
238 vld1.32 {q11}, [r5,:128]!
239 vcvt.s32.f32 q11, q11, #31
2406: subs lr, lr, #16
241 vld1.32 {q0}, [r4,:128]!
242 vcvt.s32.f32 q0, q0, #31
243 vsri.32 d18, d16, #16
244 vld1.32 {q1}, [r5,:128]!
245 vcvt.s32.f32 q1, q1, #31
246 vsri.32 d19, d17, #16
247 vld1.32 {q2}, [r4,:128]!
248 vcvt.s32.f32 q2, q2, #31
249 vld1.32 {q3}, [r5,:128]!
250 vcvt.s32.f32 q3, q3, #31
251 vst1.32 {d18[0]}, [r8], r12
252 vsri.32 d22, d20, #16
253 vst1.32 {d18[1]}, [r8], r12
254 vsri.32 d23, d21, #16
255 vst1.32 {d19[0]}, [r8], r12
256 vsri.32 d2, d0, #16
257 vst1.32 {d19[1]}, [r8], r12
258 vsri.32 d3, d1, #16
259 vst1.32 {d22[0]}, [r8], r12
260 vsri.32 d6, d4, #16
261 vst1.32 {d22[1]}, [r8], r12
262 vsri.32 d7, d5, #16
263 vst1.32 {d23[0]}, [r8], r12
264 vst1.32 {d23[1]}, [r8], r12
265 beq 6f
266 vld1.32 {q8}, [r4,:128]!
267 vcvt.s32.f32 q8, q8, #31
268 vst1.32 {d2[0]}, [r8], r12
269 vst1.32 {d2[1]}, [r8], r12
270 vld1.32 {q9}, [r5,:128]!
271 vcvt.s32.f32 q9, q9, #31
272 vst1.32 {d3[0]}, [r8], r12
273 vst1.32 {d3[1]}, [r8], r12
274 vld1.32 {q10}, [r4,:128]!
275 vcvt.s32.f32 q10, q10, #31
276 vst1.32 {d6[0]}, [r8], r12
277 vst1.32 {d6[1]}, [r8], r12
278 vld1.32 {q11}, [r5,:128]!
279 vcvt.s32.f32 q11, q11, #31
280 vst1.32 {d7[0]}, [r8], r12
281 vst1.32 {d7[1]}, [r8], r12
282 bgt 6b
2836: vst1.32 {d2[0]}, [r8], r12
284 vst1.32 {d2[1]}, [r8], r12
285 vst1.32 {d3[0]}, [r8], r12
286 vst1.32 {d3[1]}, [r8], r12
287 vst1.32 {d6[0]}, [r8], r12
288 vst1.32 {d6[1]}, [r8], r12
289 vst1.32 {d7[0]}, [r8], r12
290 vst1.32 {d7[1]}, [r8], r12
291 b 8f
2927: vsri.32 d18, d16, #16
293 vsri.32 d19, d17, #16
294 vst1.32 {d18[0]}, [r8], r12
295 vsri.32 d22, d20, #16
296 vst1.32 {d18[1]}, [r8], r12
297 vsri.32 d23, d21, #16
298 vst1.32 {d19[0]}, [r8], r12
299 vst1.32 {d19[1]}, [r8], r12
300 vst1.32 {d22[0]}, [r8], r12
301 vst1.32 {d22[1]}, [r8], r12
302 vst1.32 {d23[0]}, [r8], r12
303 vst1.32 {d23[1]}, [r8], r12
3048: subs r3, r3, #2
305 add r0, r0, #4
306 it eq
307 popeq {r4-r8, pc}
308
309 @ 1 channel
3104: ldr r4, [r1]
311 tst r2, #8
312 mov lr, r2
313 mov r5, r0
314 vld1.32 {q0}, [r4,:128]!
315 vcvt.s32.f32 q0, q0, #31
316 vld1.32 {q1}, [r4,:128]!
317 vcvt.s32.f32 q1, q1, #31
318 bne 8f
3196: subs lr, lr, #16
320 vld1.32 {q2}, [r4,:128]!
321 vcvt.s32.f32 q2, q2, #31
322 vld1.32 {q3}, [r4,:128]!
323 vcvt.s32.f32 q3, q3, #31
324 vst1.16 {d0[1]}, [r5,:16], r12
325 vst1.16 {d0[3]}, [r5,:16], r12
326 vst1.16 {d1[1]}, [r5,:16], r12
327 vst1.16 {d1[3]}, [r5,:16], r12
328 vst1.16 {d2[1]}, [r5,:16], r12
329 vst1.16 {d2[3]}, [r5,:16], r12
330 vst1.16 {d3[1]}, [r5,:16], r12
331 vst1.16 {d3[3]}, [r5,:16], r12
332 beq 7f
333 vld1.32 {q0}, [r4,:128]!
334 vcvt.s32.f32 q0, q0, #31
335 vld1.32 {q1}, [r4,:128]!
336 vcvt.s32.f32 q1, q1, #31
3377: vst1.16 {d4[1]}, [r5,:16], r12
338 vst1.16 {d4[3]}, [r5,:16], r12
339 vst1.16 {d5[1]}, [r5,:16], r12
340 vst1.16 {d5[3]}, [r5,:16], r12
341 vst1.16 {d6[1]}, [r5,:16], r12
342 vst1.16 {d6[3]}, [r5,:16], r12
343 vst1.16 {d7[1]}, [r5,:16], r12
344 vst1.16 {d7[3]}, [r5,:16], r12
345 bgt 6b
346 pop {r4-r8, pc}
3478: subs lr, lr, #8
348 vst1.16 {d0[1]}, [r5,:16], r12
349 vst1.16 {d0[3]}, [r5,:16], r12
350 vst1.16 {d1[1]}, [r5,:16], r12
351 vst1.16 {d1[3]}, [r5,:16], r12
352 vst1.16 {d2[1]}, [r5,:16], r12
353 vst1.16 {d2[3]}, [r5,:16], r12
354 vst1.16 {d3[1]}, [r5,:16], r12
355 vst1.16 {d3[3]}, [r5,:16], r12
356 it eq
357 popeq {r4-r8, pc}
358 vld1.32 {q0}, [r4,:128]!
359 vcvt.s32.f32 q0, q0, #31
360 vld1.32 {q1}, [r4,:128]!
361 vcvt.s32.f32 q1, q1, #31
362 b 6b
363endfunc

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