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Code Issues Releases Activity

Fix SVQ3 after adding 4:4:4 H.264 support

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This commit is contained in:
Jason Garrett-Glaser 2011-06-13 10:21:46 -07:00
parent c177cfb4fb
commit 295f0a2503
1 changed files with 15 additions and 11 deletions
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26
libavcodec/svq3.c
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@ -633,8 +633,9 @@ static int svq3_decode_mb(SVQ3Context *svq3, unsigned int mb_type)
memset(h->intra4x4_pred_mode+h->mb2br_xy[mb_xy], DC_PRED, 8);
}
if (!IS_SKIP(mb_type) || s->pict_type == AV_PICTURE_TYPE_B) {
memset(h->non_zero_count_cache + 8, 0, 4*9*sizeof(uint8_t));
s->dsp.clear_blocks(h->mb);
memset(h->non_zero_count_cache + 8, 0, 14*8*sizeof(uint8_t));
s->dsp.clear_blocks(h->mb+ 0);
s->dsp.clear_blocks(h->mb+384);
}
if (!IS_INTRA16x16(mb_type) && (!IS_SKIP(mb_type) || s->pict_type == AV_PICTURE_TYPE_B)) {
@ -654,8 +655,8 @@ static int svq3_decode_mb(SVQ3Context *svq3, unsigned int mb_type)
}
}
if (IS_INTRA16x16(mb_type)) {
AV_ZERO128(h->mb_luma_dc+0);
AV_ZERO128(h->mb_luma_dc+8);
AV_ZERO128(h->mb_luma_dc[0]+0);
AV_ZERO128(h->mb_luma_dc[0]+8);
if (svq3_decode_block(&s->gb, h->mb_luma_dc, 0, 1)){
av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding intra luma dc\n");
return -1;
@ -681,20 +682,23 @@ static int svq3_decode_mb(SVQ3Context *svq3, unsigned int mb_type)
}
if ((cbp & 0x30)) {
for (i = 0; i < 2; ++i) {
if (svq3_decode_block(&s->gb, &h->mb[16*(16 + 4*i)], 0, 3)){
for (i = 1; i < 3; ++i) {
if (svq3_decode_block(&s->gb, &h->mb[16*16*i], 0, 3)){
av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding chroma dc block\n");
return -1;
}
}
if ((cbp & 0x20)) {
for (i = 0; i < 8; i++) {
h->non_zero_count_cache[ scan8[16+i] ] = 1;
for (i = 1; i < 3; i++) {
for (j = 0; j < 4; j++) {
k = 16*i + j;
h->non_zero_count_cache[ scan8[k] ] = 1;
if (svq3_decode_block(&s->gb, &h->mb[16*(16 + i)], 1, 1)){
av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding chroma ac block\n");
return -1;
if (svq3_decode_block(&s->gb, &h->mb[16*k], 1, 1)){
av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding chroma ac block\n");
return -1;
}
}
}
}