From aef24efb0c1e65097ab77a4bf9264189bdf3ace3 Mon Sep 17 00:00:00 2001
From: Carl Eugen Hoyos <ceffmpeg@gmail.com>
Date: Mon, 1 Jul 2019 00:37:08 +0200
Subject: [PATCH] lavf/rawenc: Only accept the appropriate stream type for raw
 muxers.

This does not affect the rawvideo muxer.

Fixes ticket #7979.
---
 libavformat/rawenc.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/libavformat/rawenc.c b/libavformat/rawenc.c
index 993d232b70..32704f9bfd 100644
--- a/libavformat/rawenc.c
+++ b/libavformat/rawenc.c
@@ -39,6 +39,18 @@ static int force_one_stream(AVFormatContext *s)
                s->oformat->name);
         return AVERROR(EINVAL);
     }
+    if (   s->oformat->audio_codec != AV_CODEC_ID_NONE
+        && s->streams[0]->codecpar->codec_type != AVMEDIA_TYPE_AUDIO) {
+        av_log(s, AV_LOG_ERROR, "%s files have exactly one audio stream\n",
+               s->oformat->name);
+        return AVERROR(EINVAL);
+    }
+    if (   s->oformat->video_codec != AV_CODEC_ID_NONE
+        && s->streams[0]->codecpar->codec_type != AVMEDIA_TYPE_VIDEO) {
+        av_log(s, AV_LOG_ERROR, "%s files have exactly one video stream\n",
+               s->oformat->name);
+        return AVERROR(EINVAL);
+    }
     return 0;
 }