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Proper handling of motion vectors for adv. profile

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Originally committed as revision 8436 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Kostya Shishkov 2007-03-18 07:51:40 +00:00
parent 495529f7df
commit ab47579565
1 changed files with 28 additions and 0 deletions
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28
libavcodec/vc1.c
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@ -821,10 +821,17 @@ static void vc1_mc_1mv(VC1Context *v, int dir)
uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
if(v->profile != PROFILE_ADVANCED){
src_x = av_clip( src_x, -16, s->mb_width * 16);
src_y = av_clip( src_y, -16, s->mb_height * 16);
uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8);
uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8);
}else{
src_x = av_clip( src_x, -17, s->avctx->coded_width);
src_y = av_clip( src_y, -18, s->avctx->coded_height + 1);
uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);
uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);
}
srcY += src_y * s->linesize + src_x;
srcU += uvsrc_y * s->uvlinesize + uvsrc_x;
@ -944,8 +951,13 @@ static void vc1_mc_4mv_luma(VC1Context *v, int n)
src_x = s->mb_x * 16 + (n&1) * 8 + (mx >> 2);
src_y = s->mb_y * 16 + (n&2) * 4 + (my >> 2);
if(v->profile != PROFILE_ADVANCED){
src_x = av_clip( src_x, -16, s->mb_width * 16);
src_y = av_clip( src_y, -16, s->mb_height * 16);
}else{
src_x = av_clip( src_x, -17, s->avctx->coded_width);
src_y = av_clip( src_y, -18, s->avctx->coded_height + 1);
}
srcY += src_y * s->linesize + src_x;
@ -1071,8 +1083,14 @@ static void vc1_mc_4mv_chroma(VC1Context *v)
uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
if(v->profile != PROFILE_ADVANCED){
uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8);
uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8);
}else{
uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);
uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);
}
srcU = s->last_picture.data[1] + uvsrc_y * s->uvlinesize + uvsrc_x;
srcV = s->last_picture.data[2] + uvsrc_y * s->uvlinesize + uvsrc_x;
if(v->rangeredfrm || (v->mv_mode == MV_PMODE_INTENSITY_COMP)
@ -1285,6 +1303,9 @@ static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb)
v->finterpflag = get_bits1(gb);
get_bits1(gb); // reserved
v->s.h_edge_pos = v->s.avctx->coded_width;
v->s.v_edge_pos = v->s.avctx->coded_height;
av_log(v->s.avctx, AV_LOG_DEBUG,
"Advanced Profile level %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
"LoopFilter=%i, ChromaFormat=%i, Pulldown=%i, Interlace: %i\n"
@ -2118,10 +2139,17 @@ static void vc1_interp_mc(VC1Context *v)
uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
if(v->profile != PROFILE_ADVANCED){
src_x = av_clip( src_x, -16, s->mb_width * 16);
src_y = av_clip( src_y, -16, s->mb_height * 16);
uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8);
uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8);
}else{
src_x = av_clip( src_x, -17, s->avctx->coded_width);
src_y = av_clip( src_y, -18, s->avctx->coded_height + 1);
uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);
uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);
}
srcY += src_y * s->linesize + src_x;
srcU += uvsrc_y * s->uvlinesize + uvsrc_x;