[FFmpeg-cvslog] avformat/jacosubdec: Check timeres
Michael Niedermayer
git at videolan.org
Mon Oct 9 00:00:45 EEST 2023
ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sat Sep 30 19:59:06 2023 +0200| [51f0ab8b127282415822959ccad7db95ad749b5d] | committer: Michael Niedermayer
avformat/jacosubdec: Check timeres
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=51f0ab8b127282415822959ccad7db95ad749b5d
---
libavformat/jacosubdec.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/libavformat/jacosubdec.c b/libavformat/jacosubdec.c
index 41216081ee..c6e5b4aa6d 100644
--- a/libavformat/jacosubdec.c
+++ b/libavformat/jacosubdec.c
@@ -227,14 +227,17 @@ static int jacosub_read_header(AVFormatContext *s)
}
av_bprintf(&header, "#S %s", p);
break;
- case 'T': // ...but must be placed after TIMERES
- jacosub->timeres = strtol(p, NULL, 10);
- if (!jacosub->timeres)
+ case 'T': { // ...but must be placed after TIMERES
+ int64_t timeres = strtol(p, NULL, 10);
+ if (timeres <= 0 || timeres > UINT32_MAX) {
jacosub->timeres = 30;
- else
+ } else {
+ jacosub->timeres = timeres;
av_bprintf(&header, "#T %s", p);
+ }
break;
}
+ }
}
/* general/essential directives in the extradata */
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