opensles: add the mute property and handle volume/mute changes on the fly

sys/opensles/openslesringbuffer.c

@@ -322,6 +322,27 @@ _opensles_player_change_volume (GstRingBuffer * rb)
   return TRUE;
 }
 
+static gboolean
+_opensles_player_change_mute (GstRingBuffer * rb)
+{
+  GstOpenSLESRingBuffer *thiz;
+  SLresult result;
+
+  thiz = GST_OPENSLES_RING_BUFFER_CAST (rb);
+
+  if (thiz->playerVolume) {
+    result = (*thiz->playerVolume)->SetMute (thiz->playerVolume, thiz->mute);
+    if (result != SL_RESULT_SUCCESS) {
+      GST_ERROR_OBJECT (thiz, "player.SetMute failed(0x%08x)",
+          (guint32) result);
+      return FALSE;
+    }
+    GST_DEBUG_OBJECT (thiz, "changed mute to %d", thiz->mute);
+  }
+
+  return TRUE;
+}
+
 static gboolean
 _opensles_player_acquire (GstRingBuffer * rb, GstRingBufferSpec * spec)
 {
@@ -398,8 +419,9 @@ _opensles_player_acquire (GstRingBuffer * rb, GstRingBufferSpec * spec)
     goto failed;
   }
 
-  /* Configure the volume state */
+  /* Configure the volume and mute state */
   _opensles_player_change_volume (rb);
+  _opensles_player_change_mute (rb);
 
   /* Define our ringbuffer in terms of number of buffers and buffer size. */
   spec->segsize = (spec->rate * spec->bytes_per_sample);
@@ -516,6 +538,20 @@ gst_opensles_ringbuffer_set_volume (GstRingBuffer * rb, gfloat volume)
   }
 }
 
+void
+gst_opensles_ringbuffer_set_mute (GstRingBuffer * rb, gboolean mute)
+{
+  GstOpenSLESRingBuffer *thiz;
+
+  thiz = GST_OPENSLES_RING_BUFFER_CAST (rb);
+
+  thiz->mute = mute;
+
+  if (thiz->change_mute) {
+    thiz->change_mute (rb);
+  }
+}
+
 static gboolean
 gst_opensles_ringbuffer_open_device (GstRingBuffer * rb)
 {

sys/opensles/openslesringbuffer.h

@@ -76,6 +76,7 @@ struct _GstOpenSLESRingBuffer
   SLPlayItf playerPlay;
   SLVolumeItf playerVolume;
   gfloat volume;
+  gboolean mute;
 
   /* recorder interfaces */
   SLObjectItf recorderObject;
@@ -91,6 +92,7 @@ struct _GstOpenSLESRingBuffer
   StateFunc pause;
   StateFunc stop;
   StateFunc change_volume;
+  StateFunc change_mute;
 };
 
 struct _GstOpenSLESRingBufferClass
@@ -101,6 +103,7 @@ struct _GstOpenSLESRingBufferClass
 GType gst_opensles_ringbuffer_get_type (void);
 GstRingBuffer *gst_opensles_ringbuffer_new (RingBufferMode mode);
 void gst_opensles_ringbuffer_set_volume (GstRingBuffer * rb, gfloat volume);
+void gst_opensles_ringbuffer_set_mute (GstRingBuffer * rb, gboolean mute);
 
 G_END_DECLS
 #endif /* __OPENSLESRINGBUFFER_H__ */

sys/opensles/openslessink.c

@@ -30,10 +30,12 @@ enum
 {
   PROP_0,
   PROP_VOLUME,
+  PROP_MUTE,
   PROP_LAST
 };
 
 #define DEFAULT_VOLUME 1.0
+#define DEFAULT_MUTE   FALSE
 
 #define RATES "8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000, 192000"
 
@@ -86,6 +88,7 @@ gst_opensles_sink_create_ringbuffer (GstBaseAudioSink * base)
 
   rb = gst_opensles_ringbuffer_new (RB_MODE_SINK_PCM);
   gst_opensles_ringbuffer_set_volume (rb, sink->volume);
+  gst_opensles_ringbuffer_set_mute (rb, sink->mute);
   return rb;
 }
 
@@ -94,10 +97,20 @@ gst_opensles_sink_set_property (GObject * object, guint prop_id,
     const GValue * value, GParamSpec * pspec)
 {
   GstOpenSLESSink *sink = GST_OPENSLES_SINK (object);
+  GstRingBuffer *rb = GST_BASE_AUDIO_SINK (sink)->ringbuffer;
 
   switch (prop_id) {
     case PROP_VOLUME:
       sink->volume = g_value_get_double (value);
+      if (rb && GST_IS_OPENSLES_RING_BUFFER (rb)) {
+        gst_opensles_ringbuffer_set_volume (rb, sink->volume);
+      }
+      break;
+    case PROP_MUTE:
+      sink->mute = g_value_get_boolean (value);
+      if (rb && GST_IS_OPENSLES_RING_BUFFER (rb)) {
+        gst_opensles_ringbuffer_set_mute (rb, sink->mute);
+      }
       break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@@ -114,6 +127,9 @@ gst_opensles_sink_get_property (GObject * object, guint prop_id,
     case PROP_VOLUME:
       g_value_set_double (value, sink->volume);
       break;
+    case PROP_MUTE:
+      g_value_set_boolean (value, sink->mute);
+      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
@@ -138,6 +154,10 @@ gst_opensles_sink_class_init (GstOpenSLESSinkClass * klass)
       g_param_spec_double ("volume", "Volume", "Volume of this stream",
           0, 1.0, 1.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
 
+  g_object_class_install_property (gobject_class, PROP_MUTE,
+      g_param_spec_boolean ("mute", "Mute", "Mute state of this stream",
+          DEFAULT_MUTE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
   gstbaseaudiosink_class->create_ringbuffer =
       GST_DEBUG_FUNCPTR (gst_opensles_sink_create_ringbuffer);
 }
@@ -146,4 +166,5 @@ static void
 gst_opensles_sink_init (GstOpenSLESSink * sink, GstOpenSLESSinkClass * gclass)
 {
   sink->volume = DEFAULT_VOLUME;
+  sink->mute = DEFAULT_MUTE;
 }

sys/opensles/openslessink.h

@@ -41,6 +41,7 @@ struct _GstOpenSLESSink
   GstBaseAudioSink sink;
 
   gfloat volume;
+  gboolean mute;
 };
 
 struct _GstOpenSLESSinkClass

sys/opensles/openslessrc.c

@@ -26,8 +26,6 @@
 GST_DEBUG_CATEGORY_STATIC (opensles_src_debug);
 #define GST_CAT_DEFAULT opensles_src_debug
 
-#define DEFAULT_VOLUME 1.0
-
 #define RATES "8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000, 192000"
 
 static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",