From 086d0381f0395d753ec3c995bf89542a4ca74599 Mon Sep 17 00:00:00 2001
From: wm4 <wm4@mplayer2.org>
Date: Tue, 17 Jan 2012 07:58:57 +0100
Subject: [PATCH] ao_coreaudio: fix partial volume control

If digital pass-through is used, this supported setting the volume
(just mute, actually), but not getting the volume. This will probably
lead to a stuck mute state in the mplayer frontend. Make the code
respond to volume queries even if digital pass-through is used.
---
 libao2/ao_coreaudio.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libao2/ao_coreaudio.c b/libao2/ao_coreaudio.c
index 50e943e9ac..d1a93c85e2 100644
--- a/libao2/ao_coreaudio.c
+++ b/libao2/ao_coreaudio.c
@@ -169,7 +169,11 @@ Float32 vol;
 		control_vol = (ao_control_vol_t*)arg;
 		if (ao->b_digital) {
 			// Digital output has no volume adjust.
-			return CONTROL_FALSE;
+			int vol = ao->b_muted ? 0 : 100;
+			*control_vol = (ao_control_vol_t) {
+                            .left = vol, .right = vol,
+                        };
+			return CONTROL_TRUE;
 		}
 		err = AudioUnitGetParameter(ao->theOutputUnit, kHALOutputParam_Volume, kAudioUnitScope_Global, 0, &vol);