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| author | Michael Niedermayer <michael@niedermayer.cc> | 2016-01-05 01:06:18 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2016-01-15 17:39:04 +0100 |
| commit | d472b83abc765cc84e569b3778c746c6179a5d2f (patch) | |
| tree | 829a07e3a783ace41fede446eeaa12eb0c4d98a2 | |
| parent | c3abdd0f44615f0bbfde3ebcd1fddabd23d0b332 (diff) | |
| download | ffmpeg-d472b83abc765cc84e569b3778c746c6179a5d2f.tar.gz | |
avcodec/h264_slice: Fix integer overflow in implicit weight computation
Fixes mozilla bug 1230423
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 7cc01c25727a96eaaa0c177234b626e47c8ea491)
Conflicts:
libavcodec/h264_slice.c
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/h264_slice.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c index 57a135efc6..b24978a95a 100644 --- a/libavcodec/h264_slice.c +++ b/libavcodec/h264_slice.c @@ -924,7 +924,7 @@ static void implicit_weight_table(H264Context *h, int field) cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1]; } if (h->ref_count[0] == 1 && h->ref_count[1] == 1 && !FRAME_MBAFF(h) && - h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2 * cur_poc) { + h->ref_list[0][0].poc + (int64_t)h->ref_list[1][0].poc == 2 * cur_poc) { h->use_weight = 0; h->use_weight_chroma = 0; return; @@ -945,7 +945,7 @@ static void implicit_weight_table(H264Context *h, int field) h->chroma_log2_weight_denom = 5; for (ref0 = ref_start; ref0 < ref_count0; ref0++) { - int poc0 = h->ref_list[0][ref0].poc; + int64_t poc0 = h->ref_list[0][ref0].poc; for (ref1 = ref_start; ref1 < ref_count1; ref1++) { int w = 32; if (!h->ref_list[0][ref0].long_ref && !h->ref_list[1][ref1].long_ref) { |