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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-04-07 00:34:25 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-04-13 00:35:15 +0200 |
| commit | 41458534aa8890810b678bcdb4c1c04f38b72231 (patch) | |
| tree | ab00a4aafbf3fc071861974a2cb0990a364ce2ca | |
| parent | 9b56e65e8c124cb2972295f8d80519c8409ab190 (diff) | |
| download | ffmpeg-41458534aa8890810b678bcdb4c1c04f38b72231.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>
(cherry picked from commit 8c02cd8ca097871dcd00cf8e08ce51660873f405)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -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 d83ba000ce..4d24ac6d66 100644 --- a/libavcodec/h264_slice.c +++ b/libavcodec/h264_slice.c @@ -1297,7 +1297,7 @@ 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]); |