diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-07-05 00:32:40 +0300 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-07-12 23:30:50 +0300 |
| commit | db0daa80bc2781e6574988654033bcd52aac43ea (patch) | |
| tree | e2c325cac7cc8c2dbfaab086e105b247d6ed870b | |
| parent | f0aeea08a9310da79ef05cd4b631931aa699f751 (diff) | |
avformat/iff: simplify duration calculation
Fixes: signed integer overflow: 315680096256 * 134215943 cannot be represented in type 'long long'
Fixes: 48713/clusterfuzz-testcase-minimized-ffmpeg_dem_IFF_fuzzer-5886272312311808
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0740641e932551342cc1737d981e950ecffa3b63)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/iff.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/libavformat/iff.c b/libavformat/iff.c index 5be0eb55b7..1a1c80551a 100644 --- a/libavformat/iff.c +++ b/libavformat/iff.c @@ -385,7 +385,7 @@ static int read_dst_frame(AVFormatContext *s, AVPacket *pkt) avio_skip(pb, 1); pkt->flags |= AV_PKT_FLAG_KEY; pkt->stream_index = 0; - pkt->duration = 588LL * s->streams[0]->codecpar->sample_rate / 44100; + pkt->duration = s->streams[0]->codecpar->sample_rate / 75; pkt->pos = chunk_pos; chunk_pos = avio_tell(pb); @@ -398,7 +398,8 @@ static int read_dst_frame(AVFormatContext *s, AVPacket *pkt) case ID_FRTE: if (data_size < 4) return AVERROR_INVALIDDATA; - s->streams[0]->duration = avio_rb32(pb) * 588LL * s->streams[0]->codecpar->sample_rate / 44100; + s->streams[0]->duration = avio_rb32(pb) * (uint64_t)s->streams[0]->codecpar->sample_rate / 75; + break; } |