And default to 8000 if it is invalid.
An invalid sample rate can trigger av_assert2 in av_rescale_rnd.
Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com>
---
libavformat/matroskadec.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 3512f0f..81dd53f 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -1680,6 +1680,14 @@ static int matroska_parse_tracks(AVFormatContext *s)
if (!track->codec_id)
continue;
+ if (track->audio.samplerate < 0 || track->audio.samplerate > INT_MAX ||
+ isnan(track->audio.samplerate)) {
+ av_log(matroska->ctx, AV_LOG_WARNING,
+ "Invalid sample rate %f, defaulting to 8000 instead.\n",
+ track->audio.samplerate);
+ track->audio.samplerate = 8000;
+ }
+
if (track->type == MATROSKA_TRACK_TYPE_VIDEO) {
if (!track->default_duration && track->video.frame_rate > 0)
track->default_duration = 1000000000 / track->video.frame_rate;
--
2.1.4
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