CVS commit by carewolf: 

Better state handling. Avoids initial XRUN.


  M +13 -10    alsa_sink.cpp   1.12


--- kdemultimedia/akode/plugins/alsa_sink/alsa_sink.cpp  #1.11:1.12
@@ -32,5 +32,5 @@ extern "C" { ALSASinkPlugin alsa_sink; }
 struct ALSASink::private_data
 {
-    private_data() : pcm_playback(0), open(false), error(false) {};
+    private_data() : pcm_playback(0), error(false) {};
     
     snd_pcm_t *pcm_playback;
@@ -41,5 +41,4 @@ struct ALSASink::private_data
     int sampleSize;
     void* buffer;
-    bool open;
     bool error;
 };
@@ -78,5 +77,4 @@ void ALSASink::close()
     }
     m_data->pcm_playback = 0;
-    m_data->open = false;
     m_data->error = false;
 }
@@ -110,4 +108,5 @@ int ALSASink::setAudioConfiguration(cons
         // Try 16bit then
         m_data->config.sample_width = 16;
+        res = 1;
     }
     if (m_data->config.sample_width > 24 && m_data->config.sample_width <=32) {
@@ -119,4 +118,5 @@ int ALSASink::setAudioConfiguration(cons
         // Try 24bit then
         m_data->config.sample_width = 24;
+        res = 1;
     }
     if (m_data->config.sample_width > 16 && m_data->config.sample_width <= 24) {
@@ -150,5 +150,8 @@ found_format:
     unsigned int rate = config->sample_rate;
     snd_pcm_hw_params_set_rate_near(m_data->pcm_playback, hw, &rate, 0);
+    if (m_data->config.sample_rate != rate) {
     m_data->config.sample_rate = rate;
+        res = 1;
+    }
 
     snd_pcm_hw_params_set_channels(m_data->pcm_playback, hw, config->channels);
@@ -163,5 +166,5 @@ found_format:
     }
     else
-        return 1;
+        return res;
 }
 
@@ -186,5 +189,4 @@ void ALSASink::_writeFrame(AudioFrame* f
             if (status == -EPIPE) {
                 snd_pcm_prepare(m_data->pcm_playback);
-                snd_pcm_start(m_data->pcm_playback);
                 goto xrun;
             }
@@ -198,4 +200,8 @@ void ALSASink::_writeFrame(AudioFrame* f
         i++;
     }
+    
+    if (snd_pcm_state( m_data->pcm_playback ) == SND_PCM_STATE_PREPARED)
+        snd_pcm_start(m_data->pcm_playback);
+    
 }
 
@@ -212,9 +218,6 @@ bool ALSASink::writeFrame(AudioFrame* fr
     }
 
-    if (!m_data->open) {
+    if (snd_pcm_state( m_data->pcm_playback ) == SND_PCM_STATE_SETUP)
         snd_pcm_prepare(m_data->pcm_playback);
-        snd_pcm_start(m_data->pcm_playback);
-        m_data->open = true;
-    }
     
     if (frame->sample_width<0)