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Fix MB skipping with droppable frames.

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Fixes issue323.

Originally committed as revision 13378 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-05-25 14:07:35 +00:00
parent 16e30b7a04
commit 5b0e7dacd8
1 changed files with 1 additions and 1 deletions
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2
libavcodec/mpegvideo.c
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@ -236,7 +236,7 @@ int alloc_picture(MpegEncContext *s, Picture *pic, int shared){
/* It might be nicer if the application would keep track of these
* but it would require an API change. */
memmove(s->prev_pict_types+1, s->prev_pict_types, PREV_PICT_TYPES_BUFFER_SIZE-1);
s->prev_pict_types[0]= s->pict_type;
s->prev_pict_types[0]= s->dropable ? FF_B_TYPE : s->pict_type;
if(pic->age < PREV_PICT_TYPES_BUFFER_SIZE && s->prev_pict_types[pic->age] == FF_B_TYPE)
pic->age= INT_MAX; // Skipped MBs in B-frames are quite rare in MPEG-1/2 and it is a bit tricky to skip them anyway.