On 09/03/15 01:05, Vittorio Giovara wrote: > This prevents it to be written as unsigned. Also add an error message. > > CC: [email protected] > Bug-Id: 1265717 > --- > libavformat/matroskaenc.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c > index 8688616..f4d2665 100644 > --- a/libavformat/matroskaenc.c > +++ b/libavformat/matroskaenc.c > @@ -920,8 +920,11 @@ static int mkv_write_chapters(AVFormatContext *s) > int chapterstart = av_rescale_q(c->start, c->time_base, scale); > int chapterend = av_rescale_q(c->end, c->time_base, scale); > AVDictionaryEntry *t = NULL; > - if (chapterstart < 0 || chapterstart > chapterend) > + if (chapterstart < 0 || chapterstart > chapterend || chapterend < 0) > { > + av_log(s, AV_LOG_ERROR, "Invalid chapter start (%d) or end > (%d).\n", > + chapterstart, chapterend); > return AVERROR_INVALIDDATA; > + } > > chapteratom = start_ebml_master(pb, MATROSKA_ID_CHAPTERATOM, 0); > put_ebml_uint(pb, MATROSKA_ID_CHAPTERUID, c->id); >
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