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author | Kostya Shishkov <kostya.shishkov@gmail.com> | 2007-12-08 10:41:18 +0000 |
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committer | Kostya Shishkov <kostya.shishkov@gmail.com> | 2007-12-08 10:41:18 +0000 |
commit | d2e45f33a4f3ebafb9a097a0dea844697d79c494 (patch) | |
tree | 6d516345e8912e25a4637bea78025f9907a47003 /libavcodec/vc1.c | |
parent | 30ea3075442fc0380e0d5de835324d5db1f22194 (diff) | |
download | ffmpeg-streaming-d2e45f33a4f3ebafb9a097a0dea844697d79c494.zip ffmpeg-streaming-d2e45f33a4f3ebafb9a097a0dea844697d79c494.tar.gz |
Switch VC-1 decoder to output decoded residual immediately.
Originally committed as revision 11188 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/vc1.c')
-rw-r--r-- | libavcodec/vc1.c | 32 |
1 files changed, 15 insertions, 17 deletions
diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c index 6c478d1..ac2a4de 100644 --- a/libavcodec/vc1.c +++ b/libavcodec/vc1.c @@ -2884,7 +2884,8 @@ static int vc1_decode_intra_block(VC1Context *v, DCTELEM block[64], int n, int c /** Decode P block */ -static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n, int mquant, int ttmb, int first_block) +static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n, int mquant, int ttmb, int first_block, + uint8_t *dst, int linesize, int skip_block) { MpegEncContext *s = &v->s; GetBitContext *gb = &s->gb; @@ -2930,7 +2931,10 @@ static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n, int mquan if(!v->pquantizer) block[idx] += (block[idx] < 0) ? -mquant : mquant; } - s->dsp.vc1_inv_trans_8x8(block); + if(!skip_block){ + s->dsp.vc1_inv_trans_8x8(block); + s->dsp.add_pixels_clamped(block, dst, linesize); + } break; case TT_4X4: for(j = 0; j < 4; j++) { @@ -2947,8 +2951,8 @@ static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n, int mquan if(!v->pquantizer) block[idx + off] += (block[idx + off] < 0) ? -mquant : mquant; } - if(!(subblkpat & (1 << (3 - j)))) - s->dsp.vc1_inv_trans_4x4(block, j); + if(!(subblkpat & (1 << (3 - j))) && !skip_block) + s->dsp.vc1_inv_trans_4x4(dst + (j&1)*4 + (j&2)*2*linesize, linesize, block + off); } break; case TT_8X4: @@ -2969,8 +2973,8 @@ static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n, int mquan if(!v->pquantizer) block[idx + off] += (block[idx + off] < 0) ? -mquant : mquant; } - if(!(subblkpat & (1 << (1 - j)))) - s->dsp.vc1_inv_trans_8x4(block, j); + if(!(subblkpat & (1 << (1 - j))) && !skip_block) + s->dsp.vc1_inv_trans_8x4(dst + j*4*linesize, linesize, block + off); } break; case TT_4X8: @@ -2991,8 +2995,8 @@ static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n, int mquan if(!v->pquantizer) block[idx + off] += (block[idx + off] < 0) ? -mquant : mquant; } - if(!(subblkpat & (1 << (1 - j)))) - s->dsp.vc1_inv_trans_4x8(block, j); + if(!(subblkpat & (1 << (1 - j))) && !skip_block) + s->dsp.vc1_inv_trans_4x8(dst + j*4, linesize, block + off); } break; } @@ -3101,11 +3105,9 @@ static int vc1_decode_p_mb(VC1Context *v) s->dsp.vc1_v_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2)); } } else if(val) { - vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block); + vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block, s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize, (i&4) && (s->flags & CODEC_FLAG_GRAY)); if(!v->ttmbf && ttmb < 8) ttmb = -1; first_block = 0; - if((i<4) || !(s->flags & CODEC_FLAG_GRAY)) - s->dsp.add_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize); } } } @@ -3203,11 +3205,9 @@ static int vc1_decode_p_mb(VC1Context *v) s->dsp.vc1_v_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2)); } } else if(is_coded[i]) { - status = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block); + status = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block, s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize, (i&4) && (s->flags & CODEC_FLAG_GRAY)); if(!v->ttmbf && ttmb < 8) ttmb = -1; first_block = 0; - if((i<4) || !(s->flags & CODEC_FLAG_GRAY)) - s->dsp.add_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize); } } return status; @@ -3377,11 +3377,9 @@ static void vc1_decode_b_mb(VC1Context *v) if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1; s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2)); } else if(val) { - vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block); + vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block, s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize, (i&4) && (s->flags & CODEC_FLAG_GRAY)); if(!v->ttmbf && ttmb < 8) ttmb = -1; first_block = 0; - if((i<4) || !(s->flags & CODEC_FLAG_GRAY)) - s->dsp.add_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize); } } } |