From aaf473dab2b45bfbf2eb73128198d00db57c1c85 Mon Sep 17 00:00:00 2001
From: Martin Pulec <martin.pulec@cesnet.cz>
Date: Mon, 1 Jun 2020 09:54:42 +0200
Subject: [PATCH] File: really respect :opportunistic_audio

Before this fix, using :opportunistic_audio while there was no audio
track in the media file resulted in crash.
---
 src/video_capture/file.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/video_capture/file.c b/src/video_capture/file.c
index 909dfd68b..30035c415 100644
--- a/src/video_capture/file.c
+++ b/src/video_capture/file.c
@@ -455,7 +455,8 @@ static int vidcap_file_init(struct vidcap_params *params, void **state) {
                         log_msg(LOG_LEVEL_ERROR, MOD_NAME "Could not find audio stream!\n");
                         vidcap_file_common_cleanup(s);
                         return VIDCAP_INIT_FAIL;
-                } else {
+                }
+                if (s->audio_stream_idx >= 0) {
                         s->aud_ctx = vidcap_file_open_dec_ctx(dec,
                                         s->fmt_ctx->streams[s->audio_stream_idx]);