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Code Issues Releases Activity

prevent overflow if lambda2 is "too" large

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Originally committed as revision 6823 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2006-10-28 15:20:00 +00:00
parent ea7307df20
commit 1928d04640
1 changed files with 1 additions and 1 deletions
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2
libavcodec/mpegvideo.c
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@ -5579,7 +5579,7 @@ static int encode_picture(MpegEncContext *s, int picture_number)
/* Estimate motion for every MB */
if(s->pict_type != I_TYPE){
s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
s->lambda2= (s->lambda2* s->avctx->me_penalty_compensation + 128)>>8;
s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
if(s->pict_type != B_TYPE && s->avctx->me_threshold==0){
if((s->avctx->pre_me && s->last_non_b_pict_type==I_TYPE) || s->avctx->pre_me==2){
s->avctx->execute(s->avctx, pre_estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);