alsa: nicer channel switching

2 files changed, 13 insertions, 2 deletions

diff --git a/dxr3audio-alsa.c b/dxr3audio-alsa.c
index 23af170..9d36df6 100644
--- a/dxr3audio-alsa.c
+++ b/dxr3audio-alsa.c
@@ -262,10 +262,12 @@ void cAudioAlsa::write(uchar* data, size_t size)
 
 void cAudioAlsa::flush()
 {
-    int err = snd_pcm_drop(handle);
+    snd_pcm_nonblock(handle, 0);
+    int err = snd_pcm_drain(handle);
     if (err < 0) {
         esyslog("[dxr3-audio-alsa] failed to pcm_drop: %s", snd_strerror(err));
     }
+    snd_pcm_nonblock(handle, 1);
 
     err = snd_pcm_prepare(handle);
     if (err < 0) {
@@ -273,6 +275,15 @@ void cAudioAlsa::flush()
     }
 }
 
+void cAudioAlsa::setDigitalAudio(bool on)
+{
+    if (digitalAudio == on) {
+        return;
+    }
+
+    // TODO stub
+}
+
 void cAudioAlsa::Xrun()
 {
     int res;
diff --git a/dxr3audio-alsa.h b/dxr3audio-alsa.h
index 81588ab..b07bf79 100644
--- a/dxr3audio-alsa.h
+++ b/dxr3audio-alsa.h
@@ -37,7 +37,7 @@ public:
     virtual void setup(int channels, int samplerate);
     virtual void write(uchar* data, size_t size);
     virtual void flush();
-    virtual void setDigitalAudio(bool on) {}
+    virtual void setDigitalAudio(bool on);
 
 private:
     snd_pcm_t *handle;