set the samplerate before the format. The open of the device will fail when...

set the samplerate before the format. The open of the device will fail when trying to set the sample rate to a value the soundcard doesn' support afet having set the format to fl32. Now, we will fall back to s16l if the device doesn't support the rate in fl32.

modules/audio_output/alsa.c

@@ -355,11 +355,11 @@ static int Open( vlc_object_t *p_this )
     /* Choose the linear PCM format (read the comment above about FPU
        and float32) */
     if( p_aout->p_libvlc->i_cpu & CPU_CAPABILITY_FPU )
-    {
+   /* {
         i_vlc_pcm_format = VLC_FOURCC('f','l','3','2');
         i_snd_pcm_format = SND_PCM_FORMAT_FLOAT;
     }
-    else
+    else */
     {
         i_vlc_pcm_format = AOUT_FMT_S16_NE;
         i_snd_pcm_format = SND_PCM_FORMAT_S16;
@@ -501,6 +501,24 @@ static int Open( vlc_object_t *p_this )
         goto error;
     }
 
+    /* Set rate. */
+    i_old_rate = p_aout->output.output.i_rate;
+#ifdef HAVE_ALSA_NEW_API
+    i_snd_rc = snd_pcm_hw_params_set_rate_near( p_sys->p_snd_pcm, p_hw,
+                                                &(p_aout->output.output.i_rate),
+                                                NULL );
+#else
+    i_snd_rc = snd_pcm_hw_params_set_rate_near( p_sys->p_snd_pcm, p_hw,
+                                                p_aout->output.output.i_rate,
+                                                NULL );
+#endif
+    if( i_snd_rc < 0 || p_aout->output.output.i_rate != i_old_rate )
+    {
+        msg_Warn( p_aout, "The rate %d Hz is not supported by your hardware. "
+                  "Using %d Hz instead.\n", i_old_rate,
+                  p_aout->output.output.i_rate );
+    }
+
     /* Set format. */
     if ( ( i_snd_rc = snd_pcm_hw_params_set_format( p_sys->p_snd_pcm, p_hw,
                                                     i_snd_pcm_format ) ) < 0 )
@@ -547,24 +565,6 @@ static int Open( vlc_object_t *p_this )
         goto error;
     }
 
-    /* Set rate. */
-    i_old_rate = p_aout->output.output.i_rate;
-#ifdef HAVE_ALSA_NEW_API
-    i_snd_rc = snd_pcm_hw_params_set_rate_near( p_sys->p_snd_pcm, p_hw,
-                                                &p_aout->output.output.i_rate,
-                                                NULL );
-#else
-    i_snd_rc = snd_pcm_hw_params_set_rate_near( p_sys->p_snd_pcm, p_hw,
-                                                p_aout->output.output.i_rate,
-                                                NULL );
-#endif
-    if( i_snd_rc < 0 || p_aout->output.output.i_rate != i_old_rate )
-    {
-        msg_Warn( p_aout, "The rate %d Hz is not supported by your hardware. "
-                  "Using %d Hz instead.\n", i_old_rate,
-                  p_aout->output.output.i_rate );
-    }
-
     /* Set buffer size. */
 #ifdef HAVE_ALSA_NEW_API
     if ( ( i_snd_rc = snd_pcm_hw_params_set_buffer_size_near( p_sys->p_snd_pcm,