From 2dbaec690d9f8e25e12b80e1162097e96b30ddc8 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
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 <michael@niedermayer.cc>
---
ffmpeg_filter.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/ffmpeg_filter.c b/ffmpeg_filter.c
index b452fe06822..950e4d02e92 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);
--
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