diff options
| author | Nikolas Bowe <[email protected]> | 2018-01-18 15:21:56 -0800 |
|---|---|---|
| committer | Michael Niedermayer <[email protected]> | 2018-01-31 22:56:15 +0100 |
| commit | 5971f1941b39a19ced10e24adc3a26de80542600 (patch) | |
| tree | 2604f99c098ddfcd82820ca9f575f87e1a9b66ef | |
| parent | 10ed2f1972014c8da75a7060885bf91279b90fff (diff) | |
avformat/matroskadec: Fix float-cast-overflow undefined behavior in matroska_parse_tracks()
Signed-off-by: Michael Niedermayer <[email protected]>
(cherry picked from commit e07649e618caedc07eaf2f4d09253de7f77d14f0)
Signed-off-by: Michael Niedermayer <[email protected]>
| -rw-r--r-- | libavformat/matroskadec.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c index 4e12c840b0..0ab5caf652 100644 --- a/libavformat/matroskadec.c +++ b/libavformat/matroskadec.c @@ -1693,8 +1693,16 @@ static int matroska_parse_tracks(AVFormatContext *s) } if (track->type == MATROSKA_TRACK_TYPE_VIDEO) { - if (!track->default_duration && track->video.frame_rate > 0) - track->default_duration = 1000000000 / track->video.frame_rate; + if (!track->default_duration && track->video.frame_rate > 0) { + double default_duration = 1000000000 / track->video.frame_rate; + if (default_duration > UINT64_MAX || default_duration < 0) { + av_log(matroska->ctx, AV_LOG_WARNING, + "Invalid frame rate %e. Cannot calculate default duration.\n", + track->video.frame_rate); + } else { + track->default_duration = default_duration; + } + } if (track->video.display_width == -1) track->video.display_width = track->video.pixel_width; if (track->video.display_height == -1) |