diff options
Diffstat (limited to 'libavcodec/h264_direct.c')
| -rw-r--r-- | libavcodec/h264_direct.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libavcodec/h264_direct.c b/libavcodec/h264_direct.c index cbb84665b3..66e54479d1 100644 --- a/libavcodec/h264_direct.c +++ b/libavcodec/h264_direct.c @@ -39,7 +39,12 @@ static int get_scale_factor(H264SliceContext *sl, int poc, int poc1, int i) { int poc0 = sl->ref_list[0][i].poc; - int td = av_clip_int8(poc1 - poc0); + int64_t pocdiff = poc1 - (int64_t)poc0; + int td = av_clip_int8(pocdiff); + + if (pocdiff != (int)pocdiff) + avpriv_request_sample(sl->h264->avctx, "pocdiff overflow\n"); + if (td == 0 || sl->ref_list[0][i].parent->long_ref) { return 256; } else { |