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avformat/dashenc: Fix leak of AVFormatContext on error 

The Dash muxer uses submuxers and when one such submuxer has been allocated,
it is initially only stored in a temporary variable. Therefore it leaks
if an error happens between the allocation and storing it permanently.
This commit changes this.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Reviewed-by: "Jeyapal, Karthick" <kjeyapal@akamai.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Andreas Rheinhardt 2020-01-07 14:55:46 +01:00 committed by Michael Niedermayer
parent ad18f69bcb
commit 8aeab0dbc1
1 changed files with 4 additions and 5 deletions
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9
libavformat/dashenc.c
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@ -1225,10 +1225,6 @@ static int dash_init(AVFormatContext *s)
dict_copy_entry(&as->metadata, s->streams[i]->metadata, "language");
dict_copy_entry(&as->metadata, s->streams[i]->metadata, "role");
ctx = avformat_alloc_context();
if (!ctx)
return AVERROR(ENOMEM);
if (c->init_seg_name) {
os->init_seg_name = av_strireplace(c->init_seg_name, "$ext$", os->extension_name);
if (!os->init_seg_name)
@ -1261,10 +1257,13 @@ static int dash_init(AVFormatContext *s)
}
}
os->ctx = ctx = avformat_alloc_context();
if (!ctx)
return AVERROR(ENOMEM);
ctx->oformat = av_guess_format(os->format_name, NULL, NULL);
if (!ctx->oformat)
return AVERROR_MUXER_NOT_FOUND;
os->ctx = ctx;
ctx->interrupt_callback = s->interrupt_callback;
ctx->opaque = s->opaque;
ctx->io_close = s->io_close;