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Code Issues Releases Activity

fftools/ffmpeg_demux: Fix leak on error

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An AVFormatContext leaks on errors that happen before it is attached
to its permanent place (an InputFile). Fix this by attaching
it earlier.

Given that it is not documented that avformat_close_input() is usable
with an AVFormatContext that has only been allocated with
avformat_alloc_context() and not opened with avformat_open_input(),
one error path before avformat_open_input() had to be treated
specially: It uses avformat_free_context().

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2023-10-07 01:51:30 +02:00
parent d98dfcecad
commit c06d3d2404
1 changed files with 5 additions and 5 deletions
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10
fftools/ffmpeg_demux.c
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@ -1462,8 +1462,10 @@ int ifile_open(const OptionsContext *o, const char *filename)
if (data_codec_name)
ret = err_merge(ret, find_codec(NULL, data_codec_name , AVMEDIA_TYPE_DATA, 0,
&ic->data_codec));
if (ret < 0)
if (ret < 0) {
avformat_free_context(ic);
return ret;
}
ic->video_codec_id = video_codec_name ? ic->video_codec->id : AV_CODEC_ID_NONE;
ic->audio_codec_id = audio_codec_name ? ic->audio_codec->id : AV_CODEC_ID_NONE;
@ -1488,6 +1490,7 @@ int ifile_open(const OptionsContext *o, const char *filename)
av_log(d, AV_LOG_ERROR, "Did you mean file:%s?\n", filename);
return err;
}
f->ctx = ic;
av_strlcat(d->log_name, "/", sizeof(d->log_name));
av_strlcat(d->log_name, ic->iformat->name, sizeof(d->log_name));
@ -1527,10 +1530,8 @@ int ifile_open(const OptionsContext *o, const char *filename)
if (ret < 0) {
av_log(d, AV_LOG_FATAL, "could not find codec parameters\n");
if (ic->nb_streams == 0) {
avformat_close_input(&ic);
if (ic->nb_streams == 0)
return ret;
}
}
}
@ -1582,7 +1583,6 @@ int ifile_open(const OptionsContext *o, const char *filename)
}
}
f->ctx = ic;
f->start_time = start_time;
f->recording_time = recording_time;
f->input_sync_ref = o->input_sync_ref;