From 56c35c76704aac5fe25dbcec0e4fcb1ee1dd655a Mon Sep 17 00:00:00 2001
From: Andre Noll <maan@tuebingen.mpg.de>
Date: Tue, 11 Oct 2022 18:30:24 +0200
Subject: [PATCH] mixer: sleep: Fade out before stopping the stream.

The user is about to fall asleep, so try to make the transition a
bit smoother by fading out to volume zero before stopping the stream.
---
 mixer.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/mixer.c b/mixer.c
index 48095d03..dda7fc1d 100644
--- a/mixer.c
+++ b/mixer.c
@@ -273,11 +273,18 @@ static int set_initial_volume(const struct mixer *m, struct mixer_handle *h)
 	return 1;
 }
 
-static void stop(void)
+static void stop(const struct mixer *m, struct mixer_handle *h)
 {
+	int ret, old_vol = 0;
+
+	ret = m->get(h);
+	if (ret > 0)
+		old_vol = ret;
+	fade(m, h, 0, 3);
 	audioc_cmd("off");
 	client_cmd("stop");
 	audioc_cmd("on");
+	m->set(h, old_vol);
 }
 
 static int com_sleep(const struct mixer *m)
@@ -334,7 +341,7 @@ static int com_sleep(const struct mixer *m)
 	}
 	wake_time_epoch = mktime(tm);
 	PARA_INFO_LOG("waketime: %d:%02d\n", tm->tm_hour, tm->tm_min);
-	stop();
+	stop(m, h);
 	ret = set_initial_volume(m, h);
 	if (ret < 0)
 		goto close_mixer;
@@ -350,7 +357,7 @@ static int com_sleep(const struct mixer *m)
 		change_afs_mode(initial_mood);
 		client_cmd("play");
 		sleep(delay);
-		stop();
+		stop(m, h);
 	}
 	if (fot && fo_mood && *fo_mood) {
 		change_afs_mode(fo_mood);
@@ -368,7 +375,7 @@ static int com_sleep(const struct mixer *m)
 		if (!fot || !fo_mood) /* currently stopped */
 			client_cmd("play");
 	} else if (fot && fo_mood && *fo_mood) /* currently playing */
-		stop();
+		stop(m, h);
 	m->close(&h);
 	if (!fit || !fi_mood || !*fi_mood) /* nothing to do */
 		return 1;
@@ -387,7 +394,7 @@ static int com_sleep(const struct mixer *m)
 	if (ret < 0)
 		return ret;
 	if (sleep_mood && *sleep_mood) /* currently playing */
-		stop();
+		stop(m, h);
 	client_cmd("play");
 	ret = fade(m, h, fiv, fit);
 close_mixer:
-- 
2.39.2