From fb215798c7a72b32e889b72efd018f26bb3f88ce Mon Sep 17 00:00:00 2001
From: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Date: Fri, 8 Oct 2021 09:47:33 +0200
Subject: fftools/ffmpeg: Fix crash when flushing non-fully setup output stream

The output stream's packet may not have been allocated
at that point. This happens when quitting in the following command line:
$ ./ffmpeg -lavfi abuffer=sample_fmt=u8:sample_rate=48000:channel_layout=stereo -f null -

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
---
 fftools/ffmpeg.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'fftools')

diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c
index bb29e3cec5..0e38d6d185 100644
--- a/fftools/ffmpeg.c
+++ b/fftools/ffmpeg.c
@@ -1981,6 +1981,9 @@ static void flush_encoders(void)
             AVPacket *pkt = ost->pkt;
             int pkt_size;
 
+            if (!pkt)
+                break;
+
             switch (enc->codec_type) {
             case AVMEDIA_TYPE_AUDIO:
                 desc   = "audio";
-- 
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