From 2dbaec690d9f8e25e12b80e1162097e96b30ddc8 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 19 Jul 2015 14:56:09 +0200 Subject: [PATCH] ffmpeg_filter: Check that filters have connected outputs before accessing the output stream Signed-off-by: Michael Niedermayer --- ffmpeg_filter.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/ffmpeg_filter.c b/ffmpeg_filter.c index b452fe0682..950e4d02e9 100644 --- a/ffmpeg_filter.c +++ b/ffmpeg_filter.c @@ -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);