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| author | Tomas Härdin <tomas.hardin@codemill.se> | 2012-01-26 13:21:31 +0100 |
|---|---|---|
| committer | Diego Biurrun <diego@biurrun.de> | 2012-02-09 12:40:34 +0100 |
| commit | a3923482f2a2b7895b1f6ef691765f035526fc78 (patch) | |
| tree | ab647f083ec9fa4f085fc69fa47dfdeaaa4013b5 /libavformat/mxfdec.c | |
| parent | f769cfedd89db30e3d0fbf654138956779ea8053 (diff) | |
| download | ffmpeg-a3923482f2a2b7895b1f6ef691765f035526fc78.tar.gz | |
mxfdec: Make sure x < index_table->nb_ptses
Avoids a SIGSEGV on files with IndexEntryCount < IndexDuration.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
Diffstat (limited to 'libavformat/mxfdec.c')
| -rw-r--r-- | libavformat/mxfdec.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index 96b662f431..d7f3c5ea44 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -1113,6 +1113,13 @@ static int mxf_compute_ptses_fake_index(MXFContext *mxf, MXFIndexTable *index_ta int offset = s->temporal_offset_entries[j] / index_delta; int index = x + offset; + if (x >= index_table->nb_ptses) { + av_log(mxf->fc, AV_LOG_ERROR, + "x >= nb_ptses - IndexEntryCount %i < IndexDuration %"PRId64"?\n", + s->nb_index_entries, s->index_duration); + break; + } + index_table->fake_index[x].timestamp = x; index_table->fake_index[x].flags = !(s->flag_entries[j] & 0x30) ? AVINDEX_KEYFRAME : 0; |