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avformat/webvttdec: Fix memleak upon read header failure 

The already parsed subtitles (contained in an FFDemuxSubtitlesQueue)
would leak if an error happened upon reading a subsequent subtitle.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
(cherry picked from commit c784fe8b86)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-06-14 03:29:17 +02:00
parent 00f2f0b632
commit 0085ac2779
1 changed files with 2 additions and 0 deletions
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2
libavformat/webvttdec.c
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@ -165,6 +165,8 @@ static int webvtt_read_header(AVFormatContext *s)
ff_subtitles_queue_finalize(s, &webvtt->q);
end:
if (res < 0)
ff_subtitles_queue_clean(&webvtt->q);
av_bprint_finalize(&cue, NULL);
av_bprint_finalize(&header, NULL);
return res;