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ffmpeg_filter: Check that filters have connected outputs before accessing the output stream

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-07-19 14:56:09 +02:00
parent bc3f19641c
commit 2dbaec690d
1 changed files with 5 additions and 0 deletions
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5
ffmpeg_filter.c
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@ -641,6 +641,11 @@ int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOu
av_freep(&ofilter->name);
DESCRIBE_FILTER_LINK(ofilter, out, 0);
if (!ofilter->ost) {
av_log(NULL, AV_LOG_FATAL, "Filter %s has a unconnected output\n", ofilter->name);
exit_program(1);
}
switch (avfilter_pad_get_type(out->filter_ctx->output_pads, out->pad_idx)) {
case AVMEDIA_TYPE_VIDEO: return configure_output_video_filter(fg, ofilter, out);
case AVMEDIA_TYPE_AUDIO: return configure_output_audio_filter(fg, ofilter, out);