Fixes: division by zero Fixes: 26459/clusterfuzz-testcase-minimized-ffmpeg_dem_MPEGTSRAW_fuzzer-5666350112178176 Fixes: 28154/clusterfuzz-testcase-minimized-ffmpeg_dem_MPEGTSRAW_fuzzer-5195728439476224
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/mpegts.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c index 7549fc91c9..470fdf1272 100644 --- a/libavformat/mpegts.c +++ b/libavformat/mpegts.c @@ -3140,8 +3140,10 @@ static int mpegts_read_header(AVFormatContext *s) /* NOTE2: it is only the bitrate of the start of the stream */ ts->pcr_incr = (pcrs[1] - pcrs[0]) / (packet_count[1] - packet_count[0]); ts->cur_pcr = pcrs[0] - ts->pcr_incr * packet_count[0]; - s->bit_rate = TS_PACKET_SIZE * 8 * 27000000LL / ts->pcr_incr; - st->codecpar->bit_rate = s->bit_rate; + if (ts->pcr_incr) { + s->bit_rate = TS_PACKET_SIZE * 8 * 27000000LL / ts->pcr_incr; + st->codecpar->bit_rate = s->bit_rate; + } st->start_time = ts->cur_pcr; av_log(ts->stream, AV_LOG_TRACE, "start=%0.3f pcr=%0.3f incr=%d\n", st->start_time / 1000000.0, pcrs[0] / 27e6, ts->pcr_incr); -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
