ext/pulse/: Implement GstPropertyProbe interface on pulsesink for detecting sink devices and on pulsesrc for detectin...

Original commit message from CVS:
Patch by: Laszlo Pandy <laszlok2 at gmail dot com>
* ext/pulse/pulsesink.c: (gst_pulsesink_interface_supported),
(gst_pulsesink_implements_interface_init),
(gst_pulsesink_init_interfaces), (gst_pulsesink_init),
(gst_pulsesink_finalize), (gst_pulsesink_set_property),
(gst_pulsesink_get_type):
* ext/pulse/pulsesink.h:
* ext/pulse/pulsesrc.c: (gst_pulsesrc_interface_supported),
(gst_pulsesrc_init_interfaces), (gst_pulsesrc_init),
(gst_pulsesrc_finalize), (gst_pulsesrc_set_property):
* ext/pulse/pulsesrc.h:
Implement GstPropertyProbe interface on pulsesink for detecting
sink devices and on pulsesrc for detecting source devices.
Fixes bugs #547227 and #547217.

ChangeLog

@@ -1,3 +1,21 @@
+2008-08-13  Sebastian Dröge  <sebastian.droege@collabora.co.uk>
+
+	Patch by: Laszlo Pandy <laszlok2 at gmail dot com>
+
+	* ext/pulse/pulsesink.c: (gst_pulsesink_interface_supported),
+	(gst_pulsesink_implements_interface_init),
+	(gst_pulsesink_init_interfaces), (gst_pulsesink_init),
+	(gst_pulsesink_finalize), (gst_pulsesink_set_property),
+	(gst_pulsesink_get_type):
+	* ext/pulse/pulsesink.h:
+	* ext/pulse/pulsesrc.c: (gst_pulsesrc_interface_supported),
+	(gst_pulsesrc_init_interfaces), (gst_pulsesrc_init),
+	(gst_pulsesrc_finalize), (gst_pulsesrc_set_property):
+	* ext/pulse/pulsesrc.h:
+	Implement GstPropertyProbe interface on pulsesink for detecting
+	sink devices and on pulsesrc for detecting source devices.
+	Fixes bugs #547227 and #547217.
+
 2008-08-13  Stefan Kost  <ensonic@users.sf.net>
 
 	* gst/spectrum/gstspectrum.c:

ext/pulse/pulsesink.c

@@ -103,6 +103,46 @@ static gboolean gst_pulsesink_event (GstBaseSink * sink, GstEvent * event);
 # define ENDIANNESS   "BIG_ENDIAN, LITTLE_ENDIAN"
 #endif
 
+GST_IMPLEMENT_PULSEPROBE_METHODS (GstPulseSink, gst_pulsesink);
+
+static gboolean
+gst_pulsesink_interface_supported (GstImplementsInterface *
+    iface, GType interface_type)
+{
+  GstPulseSink *this = GST_PULSESINK (iface);
+
+  if (interface_type == GST_TYPE_PROPERTY_PROBE && this->probe)
+    return TRUE;
+
+  return FALSE;
+}
+
+static void
+gst_pulsesink_implements_interface_init (GstImplementsInterfaceClass * klass)
+{
+  klass->supported = gst_pulsesink_interface_supported;
+}
+
+static void
+gst_pulsesink_init_interfaces (GType type)
+{
+  static const GInterfaceInfo implements_iface_info = {
+    (GInterfaceInitFunc) gst_pulsesink_implements_interface_init,
+    NULL,
+    NULL,
+  };
+  static const GInterfaceInfo probe_iface_info = {
+    (GInterfaceInitFunc) gst_pulsesink_property_probe_interface_init,
+    NULL,
+    NULL,
+  };
+
+  g_type_add_interface_static (type, GST_TYPE_IMPLEMENTS_INTERFACE,
+      &implements_iface_info);
+  g_type_add_interface_static (type, GST_TYPE_PROPERTY_PROBE,
+      &probe_iface_info);
+}
+
 static void
 gst_pulsesink_base_init (gpointer g_class)
 {
@@ -208,6 +248,8 @@ gst_pulsesink_init (GTypeInstance * instance, gpointer g_class)
 
   e = pa_threaded_mainloop_start (pulsesink->mainloop);
   g_assert (e == 0);
+
+  pulsesink->probe = gst_pulseprobe_new (G_OBJECT_GET_CLASS (pulsesink), PROP_DEVICE, pulsesink->device, TRUE, FALSE);  /* TRUE for sinks, FALSE for sources */
 }
 
 static void
@@ -251,6 +293,11 @@ gst_pulsesink_finalize (GObject * object)
 
   pa_threaded_mainloop_free (pulsesink->mainloop);
 
+  if (pulsesink->probe) {
+    gst_pulseprobe_free (pulsesink->probe);
+    pulsesink->probe = NULL;
+  }
+
   G_OBJECT_CLASS (parent_class)->finalize (object);
 }
 
@@ -270,6 +317,10 @@ gst_pulsesink_set_property (GObject * object,
     case PROP_SERVER:
       g_free (pulsesink->server);
       pulsesink->server = g_value_dup_string (value);
+
+      if (pulsesink->probe)
+        gst_pulseprobe_set_server (pulsesink->probe, pulsesink->server);
+
       break;
 
     case PROP_DEVICE:
@@ -438,16 +489,14 @@ gst_pulsesink_prepare (GstAudioSink * asink, GstRingBufferSpec * spec)
   if (!pulsesink->context
       || pa_context_get_state (pulsesink->context) != PA_CONTEXT_READY) {
     GST_ELEMENT_ERROR (pulsesink, RESOURCE, FAILED, ("Bad context state: %s",
-            pulsesink->
+            pulsesink->context ? pa_strerror (pa_context_errno (pulsesink->
-            context ? pa_strerror (pa_context_errno (pulsesink->context)) :
+                    context)) : NULL), (NULL));
-            NULL), (NULL));
     goto unlock_and_fail;
   }
 
   if (!(pulsesink->stream = pa_stream_new (pulsesink->context,
-              pulsesink->
+              pulsesink->stream_name ? pulsesink->
-              stream_name ? pulsesink->stream_name : "Playback Stream",
+              stream_name : "Playback Stream", &pulsesink->sample_spec,
-              &pulsesink->sample_spec,
               gst_pulse_gst_to_channel_map (&channel_map, spec)))) {
     GST_ELEMENT_ERROR (pulsesink, RESOURCE, FAILED,
         ("Failed to create stream: %s",
@@ -766,6 +815,8 @@ gst_pulsesink_get_type (void)
 
     pulsesink_type = g_type_register_static (GST_TYPE_AUDIO_SINK,
         "GstPulseSink", &pulsesink_info, 0);
+
+    gst_pulsesink_init_interfaces (pulsesink_type);
   }
 
   return pulsesink_type;

ext/pulse/pulsesink.h

@@ -28,6 +28,8 @@
 #include <pulse/pulseaudio.h>
 #include <pulse/thread-mainloop.h>
 
+#include "pulseprobe.h"
+
 G_BEGIN_DECLS
 
 #define GST_TYPE_PULSESINK \
@@ -57,6 +59,8 @@ struct _GstPulseSink
 
   pa_sample_spec sample_spec;
 
+  GstPulseProbe *probe;
+
   int operation_success;
 };
 

ext/pulse/pulsesrc.c

@@ -98,6 +98,8 @@ static GstStateChangeReturn gst_pulsesrc_change_state (GstElement *
 # define ENDIANNESS   "BIG_ENDIAN, LITTLE_ENDIAN"
 #endif
 
+GST_IMPLEMENT_PULSEPROBE_METHODS (GstPulseSrc, gst_pulsesrc);
+
 static gboolean
 gst_pulsesrc_interface_supported (GstImplementsInterface *
     iface, GType interface_type)
@@ -107,6 +109,9 @@ gst_pulsesrc_interface_supported (GstImplementsInterface *
   if (interface_type == GST_TYPE_MIXER && this->mixer)
     return TRUE;
 
+  if (interface_type == GST_TYPE_PROPERTY_PROBE && this->probe)
+    return TRUE;
+
   return FALSE;
 }
 
@@ -129,10 +134,17 @@ gst_pulsesrc_init_interfaces (GType type)
     NULL,
     NULL,
   };
+  static const GInterfaceInfo probe_iface_info = {
+    (GInterfaceInitFunc) gst_pulsesrc_property_probe_interface_init,
+    NULL,
+    NULL,
+  };
 
   g_type_add_interface_static (type, GST_TYPE_IMPLEMENTS_INTERFACE,
       &implements_iface_info);
   g_type_add_interface_static (type, GST_TYPE_MIXER, &mixer_iface_info);
+  g_type_add_interface_static (type, GST_TYPE_PROPERTY_PROBE,
+      &probe_iface_info);
 }
 
 static void
@@ -246,6 +258,8 @@ gst_pulsesrc_init (GTypeInstance * instance, gpointer g_class)
   g_assert (e == 0);
 
   pulsesrc->mixer = NULL;
+
+  pulsesrc->probe = gst_pulseprobe_new (G_OBJECT_GET_CLASS (pulsesrc), PROP_DEVICE, pulsesrc->device, FALSE, TRUE);     /* FALSE for sinks, TRUE for sources */
 }
 
 static void
@@ -288,6 +302,11 @@ gst_pulsesrc_finalize (GObject * object)
   if (pulsesrc->mixer)
     gst_pulsemixer_ctrl_free (pulsesrc->mixer);
 
+  if (pulsesrc->probe) {
+    gst_pulseprobe_free (pulsesrc->probe);
+    pulsesrc->probe = NULL;
+  }
+
   G_OBJECT_CLASS (parent_class)->finalize (object);
 }
 
@@ -308,6 +327,10 @@ gst_pulsesrc_set_property (GObject * object,
     case PROP_SERVER:
       g_free (pulsesrc->server);
       pulsesrc->server = g_value_dup_string (value);
+
+      if (pulsesrc->probe)
+        gst_pulseprobe_set_server (pulsesrc->probe, pulsesrc->server);
+
       break;
 
     case PROP_DEVICE:
@@ -470,9 +493,8 @@ gst_pulsesrc_prepare (GstAudioSrc * asrc, GstRingBufferSpec * spec)
   if (!pulsesrc->context
       || pa_context_get_state (pulsesrc->context) != PA_CONTEXT_READY) {
     GST_ELEMENT_ERROR (pulsesrc, RESOURCE, FAILED, ("Bad context state: %s",
-            pulsesrc->
+            pulsesrc->context ? pa_strerror (pa_context_errno (pulsesrc->
-            context ? pa_strerror (pa_context_errno (pulsesrc->context)) :
+                    context)) : NULL), (NULL));
-            NULL), (NULL));
     goto unlock_and_fail;
   }
 

ext/pulse/pulsesrc.h

@@ -29,6 +29,7 @@
 #include <pulse/thread-mainloop.h>
 
 #include "pulsemixerctrl.h"
+#include "pulseprobe.h"
 
 G_BEGIN_DECLS
 
@@ -63,6 +64,7 @@ struct _GstPulseSrc
   size_t read_buffer_length;
 
   GstPulseMixerCtrl *mixer;
+  GstPulseProbe *probe;
 };
 
 struct _GstPulseSrcClass