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);
--
1.9.3 (Apple Git-50)
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