From: Mike Brady <mikebrady@eircom.net>
Date: Thu, 7 Jul 2016 12:31:04 +0000 (+0100)
Subject: Add a signal to say which kind of output is being used.
X-Git-Tag: 2.8.4.4~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=991aae06015a92a03af9f3c7e26cc97bfd4dbf49;p=thirdparty%2Fshairport-sync.git

Add a signal to say which kind of output is being used.
---

diff --git a/audio_alsa.c b/audio_alsa.c
index 192bc26c..76ab58c6 100644
--- a/audio_alsa.c
+++ b/audio_alsa.c
@@ -48,6 +48,7 @@ static void linear_volume(double vol);
 static void parameters(audio_parameters *info);
 static void mute(int do_mute);
 static double set_volume;
+static int output_method_signalled = 0;
 
 audio_output audio_alsa = {
     .name = "alsa",
@@ -393,9 +394,17 @@ int open_alsa_device(void) {
   }
 
   if (snd_pcm_hw_params_set_access(alsa_handle, alsa_params, SND_PCM_ACCESS_MMAP_INTERLEAVED) >= 0) {
+  	if (output_method_signalled==0) {
+  		debug(1,"Output written using MMAP");
+  		output_method_signalled=1;
+  	}
     access = SND_PCM_ACCESS_MMAP_INTERLEAVED;
     alsa_pcm_write = snd_pcm_mmap_writei;
   } else {
+  	if (output_method_signalled==0) {
+  		debug(1,"Output written with RW");
+  		output_method_signalled=1;
+  	}
     access = SND_PCM_ACCESS_RW_INTERLEAVED;
     alsa_pcm_write = snd_pcm_writei;
   }