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avcodec/mpegvideo: Only use a single ac_val pointer

The chroma pointers ac_val[1] and ac_val[2] are no longer used anywhere.

Andreas Rheinhardt committed 1 year ago

Commit dba10611 parent 4aca6b18 files · +19 −23Browse files

Showing the changes to libavcodec (8 of 8 files). Show all

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8 files
  1. libavcodec/ituh263dec.c +1 −1
  2. libavcodec/mpeg4video.c +5 −3
  3. libavcodec/mpeg4videodec.c +2 −4
  4. libavcodec/mpeg4videoenc.c +2 −2
  5. libavcodec/mpegvideo.c +3 −7
  6. libavcodec/mpegvideo.h +1 −1
  7. libavcodec/mpegvideo_enc.c +2 −2
  8. libavcodec/vc1_block.c +3 −3
libavcodec/ituh263dec.c+1−1
@@ -451,7 +451,7 @@ static void h263_pred_acdc(MpegEncContext * s, int16_t *block, int n) · 450 unmodified lines
451 int wrap, a, c, pred_dc, scale;451 int wrap, a, c, pred_dc, scale;
452 const int xy = s->block_index[n];452 const int xy = s->block_index[n];
453 int16_t *const dc_val = s->dc_val[0] + xy;453 int16_t *const dc_val = s->dc_val[0] + xy;
454 int16_t *const ac_val = (s->ac_val[0] + xy)[0];454 int16_t *const ac_val = (s->ac_val + xy)[0];
455 455
456 /* find prediction */456 /* find prediction */
457 if (n < 4) {457 if (n < 4) {
libavcodec/mpeg4video.c+5−3
@@ -50,11 +50,13 @@ void ff_mpeg4_clean_buffers(MpegEncContext *s) · 49 unmodified lines
50 l_xy = (2 * s->mb_y - 1) * l_wrap + s->mb_x * 2 - 1;50 l_xy = (2 * s->mb_y - 1) * l_wrap + s->mb_x * 2 - 1;
51 c_wrap = s->mb_stride;51 c_wrap = s->mb_stride;
52 int u_xy = 2 * mb_height * l_wrap + s->mb_y * c_wrap + s->mb_x - 1;52 int u_xy = 2 * mb_height * l_wrap + s->mb_y * c_wrap + s->mb_x - 1;
53 int v_xy = u_xy + c_wrap * (mb_height + 1);
54 int16_t (*ac_val)[16] = s->ac_val;
53 55
54 /* clean AC */56 /* clean AC */
55 memset(s->ac_val[0] + l_xy, 0, (l_wrap * 2 + 1) * 16 * sizeof(int16_t));57 memset(ac_val + l_xy, 0, (l_wrap * 2 + 1) * sizeof(*ac_val));
56 memset(s->ac_val[0] + u_xy, 0, (c_wrap + 1) * 16 * sizeof(int16_t));58 memset(ac_val + u_xy, 0, (c_wrap + 1) * sizeof(*ac_val));
57 memset(s->ac_val[0] + u_xy + c_wrap * (mb_height + 1), 0, (c_wrap + 1) * 16 * sizeof(int16_t));59 memset(ac_val + v_xy, 0, (c_wrap + 1) * sizeof(*ac_val));
58 60
59 /* clean MV */61 /* clean MV */
60 // we can't clear the MVs as they might be needed by a B-frame62 // we can't clear the MVs as they might be needed by a B-frame
libavcodec/mpeg4videodec.c+2−4
@@ -326,7 +326,7 @@ void ff_mpeg4_pred_ac(MpegEncContext *s, int16_t *block, int n, int dir) · 325 unmodified lines
326 int8_t *const qscale_table = s->cur_pic.qscale_table;326 int8_t *const qscale_table = s->cur_pic.qscale_table;
327 327
328 /* find prediction */328 /* find prediction */
329 ac_val = &s->ac_val[0][0][0] + s->block_index[n] * 16;329 ac_val = &s->ac_val[0][0] + s->block_index[n] * 16;
330 ac_val1 = ac_val;330 ac_val1 = ac_val;
331 if (s->ac_pred) {331 if (s->ac_pred) {
332 if (dir == 0) {332 if (dir == 0) {
@@ -3785,9 +3785,7 @@ static av_cold void clear_context(MpegEncContext *s) · 3452 unmodified lines
3785 s->block = NULL;3785 s->block = NULL;
3786 s->blocks = NULL;3786 s->blocks = NULL;
3787 s->ac_val_base = NULL;3787 s->ac_val_base = NULL;
3788 s->ac_val[0] =3788 s->ac_val = NULL;
3789 s->ac_val[1] =
3790 s->ac_val[2] =NULL;
3791 memset(&s->sc, 0, sizeof(s->sc));3789 memset(&s->sc, 0, sizeof(s->sc));
3792 3790
3793 s->p_field_mv_table_base = NULL;3791 s->p_field_mv_table_base = NULL;
libavcodec/mpeg4videoenc.c+2−2
@@ -130,7 +130,7 @@ static inline void restore_ac_coeffs(MPVEncContext *const s, int16_t block[6][64 · 129 unmodified lines
130 memcpy(s->c.block_last_index, zigzag_last_index, sizeof(int) * 6);130 memcpy(s->c.block_last_index, zigzag_last_index, sizeof(int) * 6);
131 131
132 for (n = 0; n < 6; n++) {132 for (n = 0; n < 6; n++) {
133 int16_t *ac_val = &s->c.ac_val[0][0][0] + s->c.block_index[n] * 16;133 int16_t *ac_val = &s->c.ac_val[0][0] + s->c.block_index[n] * 16;
134 134
135 st[n] = s->c.intra_scantable.permutated;135 st[n] = s->c.intra_scantable.permutated;
136 if (dir[n]) {136 if (dir[n]) {
@@ -169,7 +169,7 @@ static inline int decide_ac_pred(MPVEncContext *const s, int16_t block[6][64], · 32 unmodified lines
169 score -= get_block_rate(s, block[n], s->c.block_last_index[n],169 score -= get_block_rate(s, block[n], s->c.block_last_index[n],
170 s->c.intra_scantable.permutated);170 s->c.intra_scantable.permutated);
171 171
172 ac_val = &s->c.ac_val[0][0][0] + s->c.block_index[n] * 16;172 ac_val = &s->c.ac_val[0][0] + s->c.block_index[n] * 16;
173 ac_val1 = ac_val;173 ac_val1 = ac_val;
174 if (dir[n]) {174 if (dir[n]) {
175 const int xy = s->c.mb_x + s->c.mb_y * s->c.mb_stride - s->c.mb_stride;175 const int xy = s->c.mb_x + s->c.mb_y * s->c.mb_stride - s->c.mb_stride;
libavcodec/mpegvideo.c+3−7
@@ -129,9 +129,7 @@ static av_cold int init_duplicate_context(MpegEncContext *s) · 128 unmodified lines
129 /* ac values */129 /* ac values */
130 if (!FF_ALLOCZ_TYPED_ARRAY(s->ac_val_base, yc_size))130 if (!FF_ALLOCZ_TYPED_ARRAY(s->ac_val_base, yc_size))
131 return AVERROR(ENOMEM);131 return AVERROR(ENOMEM);
132 s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;132 s->ac_val = s->ac_val_base + s->b8_stride + 1;
133 s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
134 s->ac_val[2] = s->ac_val[1] + c_size;
135 }133 }
136 134
137 return 0;135 return 0;
@@ -195,9 +193,7 @@ static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src) · 57 unmodified lines
195 COPY(start_mb_y);193 COPY(start_mb_y);
196 COPY(end_mb_y);194 COPY(end_mb_y);
197 COPY(ac_val_base);195 COPY(ac_val_base);
198 COPY(ac_val[0]);196 COPY(ac_val);
199 COPY(ac_val[1]);
200 COPY(ac_val[2]);
201#undef COPY197#undef COPY
202}198}
203 199
@@ -502,7 +498,7 @@ void ff_clean_intra_table_entries(MpegEncContext *s) · 298 unmodified lines
502 dc_val[uxy] =498 dc_val[uxy] =
503 dc_val[vxy] = 1024;499 dc_val[vxy] = 1024;
504 /* ac pred */500 /* ac pred */
505 int16_t (*ac_val)[16] = s->ac_val[0];501 int16_t (*ac_val)[16] = s->ac_val;
506 av_assume(!((uintptr_t)ac_val & 0xF));502 av_assume(!((uintptr_t)ac_val & 0xF));
507 // Don't reset the upper-left luma block, as it will only ever be503 // Don't reset the upper-left luma block, as it will only ever be
508 // referenced by blocks from the same macroblock.504 // referenced by blocks from the same macroblock.
libavcodec/mpegvideo.h+1−1
@@ -148,7 +148,7 @@ typedef struct MpegEncContext { · 147 unmodified lines
148 uint8_t *coded_block_base;148 uint8_t *coded_block_base;
149 uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1)149 uint8_t *coded_block; ///< used for coded block pattern prediction (msmpeg4v3, wmv1)
150 int16_t (*ac_val_base)[16];150 int16_t (*ac_val_base)[16];
151 int16_t (*ac_val[3])[16]; ///< used for MPEG-4 AC prediction, all 3 arrays must be continuous151 int16_t (*ac_val)[16]; ///< used for H.263 AIC, MPEG-4 AC prediction
152 int mb_skipped; ///< MUST BE SET only during DECODING152 int mb_skipped; ///< MUST BE SET only during DECODING
153 uint8_t *mbskip_table; /**< used to avoid copy if macroblock skipped (for black regions for example)153 uint8_t *mbskip_table; /**< used to avoid copy if macroblock skipped (for black regions for example)
154 and used for B-frame encoding & decoding (contains skip table of next P-frame) */154 and used for B-frame encoding & decoding (contains skip table of next P-frame) */
libavcodec/mpegvideo_enc.c+2−2
@@ -3327,7 +3327,7 @@ static int encode_thread(AVCodecContext *c, void *arg){ · 3326 unmodified lines
3327 if(storecoefs){3327 if(storecoefs){
3328 for(i=0; i<6; i++){3328 for(i=0; i<6; i++){
3329 dc[i] = s->c.dc_val[0][s->c.block_index[i]];3329 dc[i] = s->c.dc_val[0][s->c.block_index[i]];
3330 memcpy(ac[i], s->c.ac_val[0][s->c.block_index[i]], sizeof(int16_t)*16);3330 memcpy(ac[i], s->c.ac_val[s->c.block_index[i]], sizeof(*s->c.ac_val));
3331 }3331 }
3332 }3332 }
3333 3333
@@ -3337,7 +3337,7 @@ static int encode_thread(AVCodecContext *c, void *arg){ · 3 unmodified lines
3337 if(storecoefs){3337 if(storecoefs){
3338 for(i=0; i<6; i++){3338 for(i=0; i<6; i++){
3339 s->c.dc_val[0][s->c.block_index[i]] = dc[i];3339 s->c.dc_val[0][s->c.block_index[i]] = dc[i];
3340 memcpy(s->c.ac_val[0][s->c.block_index[i]], ac[i], sizeof(int16_t)*16);3340 memcpy(s->c.ac_val[s->c.block_index[i]], ac[i], sizeof(*s->c.ac_val));
3341 }3341 }
3342 }3342 }
3343 }3343 }
libavcodec/vc1_block.c+3−3
@@ -611,7 +611,7 @@ static int vc1_decode_i_block(VC1Context *v, int16_t block[64], int n, · 610 unmodified lines
611 /* Store the quantized DC coeff, used for prediction */611 /* Store the quantized DC coeff, used for prediction */
612 block[0] = dcdiff * s->y_dc_scale;612 block[0] = dcdiff * s->y_dc_scale;
613 613
614 ac_val = s->ac_val[0][s->block_index[n]];614 ac_val = s->ac_val[s->block_index[n]];
615 ac_val2 = ac_val;615 ac_val2 = ac_val;
616 if (dc_pred_dir) // left616 if (dc_pred_dir) // left
617 ac_val -= 16;617 ac_val -= 16;
@@ -750,7 +750,7 @@ static int vc1_decode_i_block_adv(VC1Context *v, int16_t block[64], int n, · 132 unmodified lines
750 750
751 scale = quant * 2 + ((mquant < 0) ? 0 : v->halfpq);751 scale = quant * 2 + ((mquant < 0) ? 0 : v->halfpq);
752 752
753 ac_val = s->ac_val[0][s->block_index[n]];753 ac_val = s->ac_val[s->block_index[n]];
754 ac_val2 = ac_val;754 ac_val2 = ac_val;
755 if (dc_pred_dir) // left755 if (dc_pred_dir) // left
756 ac_val -= 16;756 ac_val -= 16;
@@ -938,7 +938,7 @@ static int vc1_decode_intra_block(VC1Context *v, int16_t block[64], int n, · 181 unmodified lines
938 if (!a_avail) dc_pred_dir = 1;938 if (!a_avail) dc_pred_dir = 1;
939 if (!c_avail) dc_pred_dir = 0;939 if (!c_avail) dc_pred_dir = 0;
940 if (!a_avail && !c_avail) use_pred = 0;940 if (!a_avail && !c_avail) use_pred = 0;
941 ac_val = s->ac_val[0][s->block_index[n]];941 ac_val = s->ac_val[s->block_index[n]];
942 ac_val2 = ac_val;942 ac_val2 = ac_val;
943 943
944 scale = quant * 2 + ((mquant < 0) ? 0 : v->halfpq);944 scale = quant * 2 + ((mquant < 0) ? 0 : v->halfpq);

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