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avformat/aqtitledec: 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 a86a5d06d8)
This commit is contained in:
Andreas Rheinhardt 2020-06-14 03:04:29 +02:00
parent 30d66abc80
commit 7c0a9ff9c0
1 changed files with 5 additions and 2 deletions
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7
libavformat/aqtitledec.c
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@ -81,11 +81,11 @@ static int aqt_read_header(AVFormatContext *s)
if (!new_event) {
sub = ff_subtitles_queue_insert(&aqt->q, "\n", 1, 1);
if (!sub)
return AVERROR(ENOMEM);
goto fail;
}
sub = ff_subtitles_queue_insert(&aqt->q, line, strlen(line), !new_event);
if (!sub)
return AVERROR(ENOMEM);
goto fail;
if (new_event) {
sub->pts = frame;
sub->duration = -1;
@ -97,6 +97,9 @@ static int aqt_read_header(AVFormatContext *s)
ff_subtitles_queue_finalize(s, &aqt->q);
return 0;
fail:
ff_subtitles_queue_clean(&aqt->q);
return AVERROR(ENOMEM);
}
static int aqt_read_packet(AVFormatContext *s, AVPacket *pkt)