From c79a9d3184cefb2fe8898d7f562f32334eb32324 Mon Sep 17 00:00:00 2001
From: Jens Ziller <zillevdr@gmx.de>
Date: Mon, 23 Aug 2021 19:07:56 +0200
Subject: [PATCH] if audio running must stop audio player thread before
 reconfigure Alsa

---
 audio.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/audio.c b/audio.c
index 069a572..32e7d4c 100644
--- a/audio.c
+++ b/audio.c
@@ -944,10 +944,11 @@ static int AlsaSetup(int channels, int sample_rate, __attribute__ ((unused)) int
 
 	AudioDownMix = 0;
 
-	if (!AlsaPCMHandle) {		// alsa not running yet
-		// FIXME: if open fails for fe. pass-through, we never recover
-		fprintf(stderr, "AlsaSetup: No AlsaPCMHandle found!!!\n");
-		return -1;
+	if (AudioRunning) {
+#ifdef SOUND_DEBUG
+		fprintf(stderr, "AlsaSetup: Audio is Running => AudioFlushBuffers\n");
+#endif
+		AudioFlushBuffers();
 	}
 	snd_pcm_hw_params_alloca(&hwparams);
 	if ((err = snd_pcm_hw_params_any(AlsaPCMHandle, hwparams)) < 0) {
@@ -1327,7 +1328,9 @@ void AudioFilter(AVFrame *inframe, AVCodecContext *AudioCtx)
 		} else {
 			Filterchanged = 1;
 			err_count++;
+#ifdef DEBUG
 			fprintf(stderr, "AudioFilter: Filterchanged %d  err_count %d\n", Filterchanged, err_count);
+#endif
 			goto in;
 		}
 	}