virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-02-14 22:22:59 +02:00
Code Issues Releases Activity

avcodec/utils: Check sample rate before use for AV_CODEC_ID_BINKAUDIO_DCT in get_audio_frame_duration()

Browse Source 
Fixes: shift exponent 95 is too large for 32-bit type 'int'
Fixes: 26590/clusterfuzz-testcase-minimized-ffmpeg_dem_SMACKER_fuzzer-5120609937522688

Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ec7e0d42884b40ce93b6b5e94de5f7849310f8a0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2020-10-27 17:21:19 +01:00
parent 7f23553234
commit 4b080eaf2b
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
libavcodec/utils.c
View File

@ -1613,9 +1613,12 @@ static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
if (ch > 0) {
/* calc from sample rate and channels */
if (id == AV_CODEC_ID_BINKAUDIO_DCT)
if (id == AV_CODEC_ID_BINKAUDIO_DCT) {
if (sr / 22050 > 22)
return 0;
return (480 << (sr / 22050)) / ch;
}
}
if (id == AV_CODEC_ID_MP3)
return sr <= 24000 ? 576 : 1152;