Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com>
---
libavformat/mpegts.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index fad10c6..77d63f2 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -2692,6 +2692,10 @@ static int mpegts_read_header(AVFormatContext *s)
/* NOTE1: the bitrate is computed without the FEC */
/* 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]);
+ if (ts->pcr_incr <= 0) {
+ av_log(s, AV_LOG_ERROR, "invalid pcr increment %d\n",
ts->pcr_incr);
+ return AVERROR_INVALIDDATA;
+ }
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;
--
2.10.2
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