1 files changed, 40 insertions, 5 deletions
diff --git a/libmatemixer/matemixer-backend.c b/libmatemixer/matemixer-backend.c
index 18e622f..890c34b 100644
--- a/libmatemixer/matemixer-backend.c
+++ b/libmatemixer/matemixer-backend.c
@@ -19,6 +19,7 @@
 #include <glib-object.h>
 
 #include "matemixer-backend.h"
+#include "matemixer-stream.h"
 
 G_DEFINE_INTERFACE (MateMixerBackend, mate_mixer_backend, G_TYPE_OBJECT)
 
@@ -32,9 +33,10 @@ mate_mixer_backend_open (MateMixerBackend *backend)
 {
 MateMixerBackendInterface *iface;
 
- g_return_val_if_fail (MATE_MIXER_IS_BACKEND (backend), NULL);
+ g_return_val_if_fail (MATE_MIXER_IS_BACKEND (backend), FALSE);
 
 iface = MATE_MIXER_BACKEND_GET_INTERFACE (backend);
+
 if (iface->open)
 return iface->open (backend);
 
@@ -46,9 +48,10 @@ mate_mixer_backend_close (MateMixerBackend *backend)
 {
 MateMixerBackendInterface *iface;
 
- g_return_val_if_fail (MATE_MIXER_IS_BACKEND (backend), NULL);
+ g_return_if_fail (MATE_MIXER_IS_BACKEND (backend));
 
 iface = MATE_MIXER_BACKEND_GET_INTERFACE (backend);
+
 if (iface->close)
 iface->close (backend);
 }
@@ -61,6 +64,7 @@ mate_mixer_backend_list_devices (MateMixerBackend *backend)
 g_return_val_if_fail (MATE_MIXER_IS_BACKEND (backend), NULL);
 
 iface = MATE_MIXER_BACKEND_GET_INTERFACE (backend);
+
 if (iface->list_devices)
 return iface->list_devices (backend);
 
@@ -68,15 +72,46 @@ mate_mixer_backend_list_devices (MateMixerBackend *backend)
 }
 
 GList *
-mate_mixer_backend_list_tracks (MateMixerBackend *backend)
+mate_mixer_backend_list_streams (MateMixerBackend *backend)
+{
+ MateMixerBackendInterface *iface;
+
+ g_return_val_if_fail (MATE_MIXER_IS_BACKEND (backend), NULL);
+
+ iface = MATE_MIXER_BACKEND_GET_INTERFACE (backend);
+
+ if (iface->list_streams)
+ return iface->list_streams (backend);
+
+ return NULL;
+}
+
+MateMixerStream *
+mate_mixer_backend_get_default_input_stream (MateMixerBackend *backend)
+{
+ MateMixerBackendInterface *iface;
+
+ g_return_val_if_fail (MATE_MIXER_IS_BACKEND (backend), NULL);
+
+ iface = MATE_MIXER_BACKEND_GET_INTERFACE (backend);
+
+ if (iface->get_default_input_stream)
+ return iface->get_default_input_stream (backend);
+
+ return NULL;
+}
+
+MateMixerStream *
+mate_mixer_backend_get_default_output_stream (MateMixerBackend *backend)
 {
 MateMixerBackendInterface *iface;
 
 g_return_val_if_fail (MATE_MIXER_IS_BACKEND (backend), NULL);
 
 iface = MATE_MIXER_BACKEND_GET_INTERFACE (backend);
- if (iface->list_tracks)
- return iface->list_tracks (backend);
+
+ if (iface->get_default_output_stream)
+ return iface->get_default_output_stream (backend);
 
 return NULL;
 }