Add mode property to the encoder

2 files changed, 74 insertions, 1 deletions

diff --git a/audio/gstsbcenc.c b/audio/gstsbcenc.c
index 86a66270..7f94fc2a 100644
--- a/audio/gstsbcenc.c
+++ b/audio/gstsbcenc.c
@@ -32,6 +32,31 @@
 GST_DEBUG_CATEGORY_STATIC(sbc_enc_debug);
 #define GST_CAT_DEFAULT sbc_enc_debug
 
+#define GST_TYPE_SBC_MODE (gst_sbc_mode_get_type())
+
+static GType gst_sbc_mode_get_type(void)
+{
+	static GType sbc_mode_type = 0;
+	static GEnumValue sbc_modes[] = {
+		{  0, "Auto",		"auto"		},
+		{  1, "Mono",		"mono"		},
+		{  2, "Dual Channel",	"dual"		},
+		{  3, "Stereo",		"stereo"	},
+		{  4, "Joint Stereo",	"joint"		},
+		{ -1, NULL, NULL}
+	};
+
+	if (!sbc_mode_type)
+		sbc_mode_type = g_enum_register_static("GstSbcMode", sbc_modes);
+
+	return sbc_mode_type;
+}
+
+enum {
+	PROP_0,
+	PROP_MODE,
+};
+
 GST_BOILERPLATE(GstSbcEnc, gst_sbc_enc, GstElement, GST_TYPE_ELEMENT);
 
 static const GstElementDetails sbc_enc_details =
@@ -52,7 +77,13 @@ static GstStaticPadTemplate sbc_enc_sink_factory =
 
 static GstStaticPadTemplate sbc_enc_src_factory =
 	GST_STATIC_PAD_TEMPLATE("src", GST_PAD_SRC, GST_PAD_ALWAYS,
-		GST_STATIC_CAPS("audio/x-sbc"));
+		GST_STATIC_CAPS("audio/x-sbc, "
+				"rate = (int) { 16000, 32000, 44100, 48000 }, "
+				"channels = (int) [ 1, 2 ], "
+				"mode = (string) { mono, dual, stereo, joint }, "
+				"blocks = (int) { 4, 8, 12, 16 }, "
+				"subbands = (int) { 4, 8 }, "
+				"allocation = (string) { snr, loudness }"));
 
 static GstFlowReturn sbc_enc_chain(GstPad *pad, GstBuffer *buffer)
 {
@@ -148,14 +179,54 @@ static void gst_sbc_enc_base_init(gpointer g_class)
 	gst_element_class_set_details(element_class, &sbc_enc_details);
 }
 
+static void gst_sbc_enc_set_property(GObject *object, guint prop_id,
+					const GValue *value, GParamSpec *pspec)
+{
+	GstSbcEnc *enc = GST_SBC_ENC(object);
+
+	switch (prop_id) {
+	case PROP_MODE:
+		enc->mode = g_value_get_enum(value);
+		break;
+
+	default:
+		G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+		break;
+	}
+}
+
+static void gst_sbc_enc_get_property(GObject *object, guint prop_id,
+					GValue *value, GParamSpec *pspec)
+{
+	GstSbcEnc *enc = GST_SBC_ENC(object);
+
+	switch (prop_id) {
+	case PROP_MODE:
+		g_value_set_enum(value, enc->mode);
+		break;
+
+	default:
+		G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+		break;
+	}
+}
+
 static void gst_sbc_enc_class_init(GstSbcEncClass *klass)
 {
+	GObjectClass *object_class = G_OBJECT_CLASS(klass);
 	GstElementClass *element_class = GST_ELEMENT_CLASS(klass);
 
 	parent_class = g_type_class_peek_parent(klass);
 
+	object_class->set_property = GST_DEBUG_FUNCPTR(gst_sbc_enc_set_property);
+	object_class->get_property = GST_DEBUG_FUNCPTR(gst_sbc_enc_get_property);
+
 	element_class->change_state = GST_DEBUG_FUNCPTR(sbc_enc_change_state);
 
+	g_object_class_install_property(object_class, PROP_MODE,
+			g_param_spec_enum("mode", "Mode", "Encoding mode",
+				GST_TYPE_SBC_MODE, 0, G_PARAM_READWRITE));
+
 	GST_DEBUG_CATEGORY_INIT(sbc_enc_debug, "sbcenc", 0,
 						"SBC encoding element");
 }
diff --git a/audio/gstsbcenc.h b/audio/gstsbcenc.h
index 491135c1..e7daf2d3 100644
--- a/audio/gstsbcenc.h
+++ b/audio/gstsbcenc.h
@@ -47,6 +47,8 @@ struct _GstSbcEnc {
 	GstPad *sinkpad;
 	GstPad *srcpad;
 
+	gint mode;
+
 	sbc_t sbc;
 };