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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-04-07 00:34:25 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-04-12 23:52:59 +0200 |
| commit | 8c02cd8ca097871dcd00cf8e08ce51660873f405 (patch) | |
| tree | a1b543e0e59f6c8dcd73713f83b8471dc06e48d6 /libavcodec | |
| parent | 0a8133119ca5d087c7c7140d100406ff84c477ee (diff) | |
| download | ffmpeg-8c02cd8ca097871dcd00cf8e08ce51660873f405.tar.gz | |
avcodec/h264_slice: Fix integer overflow with last_poc
Fixes: signed integer overflow: 2147483646 - -2816 cannot be represented in type 'int'
Fixes: crbug 823145
Reported-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/h264_slice.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c index 90e05ed8f1..d71ddbe9ba 100644 --- a/libavcodec/h264_slice.c +++ b/libavcodec/h264_slice.c @@ -1316,7 +1316,7 @@ static int h264_select_output_frame(H264Context *h) } out_of_order = MAX_DELAYED_PIC_COUNT - i; if( cur->f->pict_type == AV_PICTURE_TYPE_B - || (h->last_pocs[MAX_DELAYED_PIC_COUNT-2] > INT_MIN && h->last_pocs[MAX_DELAYED_PIC_COUNT-1] - h->last_pocs[MAX_DELAYED_PIC_COUNT-2] > 2)) + || (h->last_pocs[MAX_DELAYED_PIC_COUNT-2] > INT_MIN && h->last_pocs[MAX_DELAYED_PIC_COUNT-1] - (int64_t)h->last_pocs[MAX_DELAYED_PIC_COUNT-2] > 2)) out_of_order = FFMAX(out_of_order, 1); if (out_of_order == MAX_DELAYED_PIC_COUNT) { av_log(h->avctx, AV_LOG_VERBOSE, "Invalid POC %d<%d\n", cur->poc, h->last_pocs[0]); |