1 files changed, 277 insertions, 0 deletions
diff --git a/ext/pulse/pulsemixer.c b/ext/pulse/pulsemixer.c
new file mode 100644
index 00000000..e2957aa6
--- /dev/null
+++ b/ext/pulse/pulsemixer.c
@@ -0,0 +1,277 @@
+/*
+ *  GStreamer pulseaudio plugin
+ *
+ *  Copyright (c) 2004-2008 Lennart Poettering
+ *
+ *  gst-pulse is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as
+ *  published by the Free Software Foundation; either version 2.1 of the
+ *  License, or (at your option) any later version.
+ *
+ *  gst-pulse is distributed in the hope that it will be useful, but
+ *  WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with gst-pulse; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ *  USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <string.h>
+#include <stdio.h>
+
+#include "pulsemixer.h"
+
+enum
+{
+  PROP_SERVER = 1,
+  PROP_DEVICE,
+  PROP_DEVICE_NAME
+};
+
+GST_DEBUG_CATEGORY_EXTERN (pulse_debug);
+#define GST_CAT_DEFAULT pulse_debug
+
+static void gst_pulsemixer_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec);
+static void gst_pulsemixer_get_property (GObject * object, guint prop_id,
+    GValue * value, GParamSpec * pspec);
+static void gst_pulsemixer_finalize (GObject * object);
+
+static GstStateChangeReturn gst_pulsemixer_change_state (GstElement * element,
+    GstStateChange transition);
+
+static void gst_pulsemixer_init_interfaces (GType type);
+
+GST_IMPLEMENT_PULSEMIXER_CTRL_METHODS (GstPulseMixer, gst_pulsemixer);
+GST_IMPLEMENT_PULSEPROBE_METHODS (GstPulseMixer, gst_pulsemixer);
+GST_BOILERPLATE_FULL (GstPulseMixer, gst_pulsemixer, GstElement,
+    GST_TYPE_ELEMENT, gst_pulsemixer_init_interfaces);
+
+static gboolean
+gst_pulsemixer_interface_supported (GstImplementsInterface
+    * iface, GType interface_type)
+{
+  GstPulseMixer *this = GST_PULSEMIXER (iface);
+
+  if (interface_type == GST_TYPE_MIXER && this->mixer)
+    return TRUE;
+
+  if (interface_type == GST_TYPE_PROPERTY_PROBE && this->probe)
+    return TRUE;
+
+  return FALSE;
+}
+
+static void
+gst_pulsemixer_implements_interface_init (GstImplementsInterfaceClass * klass)
+{
+  klass->supported = gst_pulsemixer_interface_supported;
+}
+
+static void
+gst_pulsemixer_init_interfaces (GType type)
+{
+  static const GInterfaceInfo implements_iface_info = {
+    (GInterfaceInitFunc) gst_pulsemixer_implements_interface_init,
+    NULL,
+    NULL,
+  };
+  static const GInterfaceInfo mixer_iface_info = {
+    (GInterfaceInitFunc) gst_pulsemixer_mixer_interface_init,
+    NULL,
+    NULL,
+  };
+  static const GInterfaceInfo probe_iface_info = {
+    (GInterfaceInitFunc) gst_pulsemixer_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
+gst_pulsemixer_base_init (gpointer g_class)
+{
+
+  static const GstElementDetails details =
+      GST_ELEMENT_DETAILS ("PulseAudio Mixer",
+      "Generic/Audio",
+      "Control sound input and output levels for PulseAudio",
+      "Lennart Poettering");
+
+  gst_element_class_set_details (GST_ELEMENT_CLASS (g_class), &details);
+}
+
+static void
+gst_pulsemixer_class_init (GstPulseMixerClass * g_class)
+{
+  GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
+
+  GObjectClass *gobject_class = G_OBJECT_CLASS (g_class);
+
+  gstelement_class->change_state =
+      GST_DEBUG_FUNCPTR (gst_pulsemixer_change_state);
+
+  gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_pulsemixer_finalize);
+  gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_pulsemixer_get_property);
+  gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_pulsemixer_set_property);
+
+  g_object_class_install_property (gobject_class,
+      PROP_SERVER,
+      g_param_spec_string ("server", "Server",
+          "The PulseAudio server to connect to", NULL, G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class,
+      PROP_DEVICE,
+      g_param_spec_string ("device", "Sink/Source",
+          "The PulseAudio sink or source to control", NULL, G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class,
+      PROP_DEVICE_NAME,
+      g_param_spec_string ("device-name", "Device name",
+          "Human-readable name of the sound device", NULL, G_PARAM_READABLE));
+}
+
+static void
+gst_pulsemixer_init (GstPulseMixer * this, GstPulseMixerClass * g_class)
+{
+  this->mixer = NULL;
+  this->server = NULL;
+  this->device = NULL;
+
+  this->probe =
+      gst_pulseprobe_new (G_OBJECT_GET_CLASS (this), PROP_DEVICE, this->device,
+      TRUE, TRUE);
+}
+
+static void
+gst_pulsemixer_finalize (GObject * object)
+{
+  GstPulseMixer *this = GST_PULSEMIXER (object);
+
+  g_free (this->server);
+  g_free (this->device);
+
+  if (this->mixer) {
+    gst_pulsemixer_ctrl_free (this->mixer);
+    this->mixer = NULL;
+  }
+
+  if (this->probe) {
+    gst_pulseprobe_free (this->probe);
+    this->probe = NULL;
+  }
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gst_pulsemixer_set_property (GObject * object,
+    guint prop_id, const GValue * value, GParamSpec * pspec)
+{
+
+  GstPulseMixer *this = GST_PULSEMIXER (object);
+
+  switch (prop_id) {
+    case PROP_SERVER:
+      g_free (this->server);
+      this->server = g_value_dup_string (value);
+      break;
+
+    case PROP_DEVICE:
+      g_free (this->device);
+      this->device = g_value_dup_string (value);
+
+      if (this->probe)
+        gst_pulseprobe_set_server (this->probe, this->device);
+
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static void
+gst_pulsemixer_get_property (GObject * object,
+    guint prop_id, GValue * value, GParamSpec * pspec)
+{
+
+  GstPulseMixer *this = GST_PULSEMIXER (object);
+
+  switch (prop_id) {
+
+    case PROP_SERVER:
+      g_value_set_string (value, this->server);
+      break;
+
+    case PROP_DEVICE:
+      g_value_set_string (value, this->device);
+      break;
+
+    case PROP_DEVICE_NAME:
+
+      if (this->mixer) {
+        char *t = g_strdup_printf ("%s: %s",
+            this->mixer->type == GST_PULSEMIXER_SINK ? "Playback" : "Capture",
+            this->mixer->description);
+
+        g_value_set_string (value, t);
+        g_free (t);
+      } else
+        g_value_set_string (value, NULL);
+
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static GstStateChangeReturn
+gst_pulsemixer_change_state (GstElement * element, GstStateChange transition)
+{
+  GstPulseMixer *this = GST_PULSEMIXER (element);
+
+  switch (transition) {
+    case GST_STATE_CHANGE_NULL_TO_READY:
+
+      if (!this->mixer)
+        this->mixer =
+            gst_pulsemixer_ctrl_new (this->server, this->device,
+            GST_PULSEMIXER_UNKNOWN);
+
+      break;
+
+    case GST_STATE_CHANGE_READY_TO_NULL:
+
+      if (this->mixer) {
+        gst_pulsemixer_ctrl_free (this->mixer);
+        this->mixer = NULL;
+      }
+
+      break;
+
+    default:
+      ;
+  }
+
+  if (GST_ELEMENT_CLASS (parent_class)->change_state)
+    return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+
+  return GST_STATE_CHANGE_SUCCESS;
+}