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xvid qpel bug workaround 

Originally committed as revision 1063 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2002-10-22 18:55:20 +00:00
parent 3b4b29dcd9
commit 03e93d35b0
3 changed files with 6 additions and 1 deletions
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1
libavcodec/avcodec.h
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@ -426,6 +426,7 @@ typedef struct AVCodecContext {
#define FF_BUG_UMP4 8
#define FF_BUG_NO_PADDING 16
#define FF_BUG_AC_VLC 32
#define FF_BUG_QPEL_CHROMA 64
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
/**

4
libavcodec/h263dec.c
View File

@ -372,6 +372,10 @@ uint64_t time= rdtsc();
s->workaround_bugs|= FF_BUG_UMP4;
s->workaround_bugs|= FF_BUG_AC_VLC;
}
if(s->divx_version){
s->workaround_bugs|= FF_BUG_QPEL_CHROMA;
}
//printf("padding_bug_score: %d\n", s->padding_bug_score);
#if 0
if(s->divx_version==500)

2
libavcodec/mpegvideo.c
View File

@ -1384,7 +1384,7 @@ static inline void qpel_motion(MpegEncContext *s,
if(field_based){
mx= motion_x/2;
my= motion_y>>1;
}else if(s->divx_version){
}else if(s->workaround_bugs&FF_BUG_QPEL_CHROMA){
mx= (motion_x>>1)|(motion_x&1);
my= (motion_y>>1)|(motion_y&1);
}else{