1 files changed, 148 insertions, 0 deletions
diff --git a/ext/ivorbis/vorbis.c b/ext/ivorbis/vorbis.c
new file mode 100644
index 00000000..5ac26297
--- /dev/null
+++ b/ext/ivorbis/vorbis.c
@@ -0,0 +1,148 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <string.h>
+#include <gst/gst.h>
+#include <tremor/ivorbiscodec.h>
+#include <tremor/ivorbisfile.h>
+#include <gst/bytestream/bytestream.h>
+
+extern GType vorbisfile_get_type(void);
+
+extern GstElementDetails vorbisfile_details;
+extern GstElementDetails vorbisenc_details;
+
+static GstCaps* 	vorbis_type_find 	(GstBuffer *buf, gpointer private);
+
+GstPadTemplate *gst_vorbisdec_src_template, *gst_vorbisdec_sink_template; 
+
+static GstCaps*
+vorbis_caps_factory (void)
+{
+  return
+   gst_caps_new (
+  	"tremor_tremor",
+  	"application/x-ogg",
+  	NULL);
+}
+
+static GstCaps*
+raw_caps_factory (void)
+{
+  return
+   gst_caps_new (
+  	"tremor_raw",
+  	"audio/raw",
+	gst_props_new (
+  	  "format",   		GST_PROPS_STRING ("int"),
+    	    "law",   		GST_PROPS_INT (0),
+    	    "endianness", 	GST_PROPS_INT (G_BYTE_ORDER),
+    	    "signed", 		GST_PROPS_BOOLEAN (TRUE),
+    	    "width", 		GST_PROPS_INT (16),
+    	    "depth",    	GST_PROPS_INT (16),
+    	    "rate",     	GST_PROPS_INT_RANGE (11025, 48000),
+    	    "channels", 	GST_PROPS_INT_RANGE (1, 2),
+	    NULL));
+}
+
+static GstCaps*
+raw_caps2_factory (void)
+{
+  return
+   gst_caps_new (
+  	"tremor_raw_float",
+  	"audio/raw",
+	gst_props_new (
+  	  "format",   		GST_PROPS_STRING ("float"),
+    	    "layout",		GST_PROPS_STRING ("IEEE"),
+    	    "rate",     	GST_PROPS_INT_RANGE (11025, 48000),
+    	    "channels", 	GST_PROPS_INT (2),
+	    NULL));
+}
+
+static GstTypeDefinition vorbisdefinition = {
+  "tremor_audio/x-ogg",
+  "application/x-ogg",
+  ".ogg",
+  vorbis_type_find,
+};
+
+static GstCaps* 
+vorbis_type_find (GstBuffer *buf, gpointer private) 
+{
+  gulong head = GULONG_FROM_BE (*((gulong *)GST_BUFFER_DATA (buf)));
+
+  if (head  != 0x4F676753)
+    return NULL;
+
+  return gst_caps_new ("vorbis_type_find", "application/x-ogg", NULL);
+}
+
+
+static gboolean
+plugin_init (GModule *module, GstPlugin *plugin)
+{
+  GstElementFactory *enc, *file;
+  GstTypeFactory *type;
+  GstCaps *raw_caps, *vorbis_caps, *raw_caps2;
+
+  gst_plugin_set_longname (plugin, "The OGG Vorbis Codec");
+
+  raw_caps = raw_caps_factory ();
+  raw_caps2 = raw_caps2_factory ();
+  vorbis_caps = vorbis_caps_factory ();
+
+  /* register sink pads */
+  gst_vorbisdec_sink_template = gst_pad_template_new ("sink", GST_PAD_SINK, 
+		                                      GST_PAD_ALWAYS, 
+					              vorbis_caps, NULL);
+  raw_caps = gst_caps_prepend (raw_caps, raw_caps2);
+  /* register src pads */
+  gst_vorbisdec_src_template = gst_pad_template_new ("src", GST_PAD_SRC, 
+		                                     GST_PAD_ALWAYS, 
+					             raw_caps, NULL);
+  /* create an elementfactory for the vorbisfile element */
+  file = gst_element_factory_new ("ivorbisfile", vorbisfile_get_type(),
+                                  &vorbisfile_details);
+  g_return_val_if_fail(file != NULL, FALSE);
+  gst_element_factory_set_rank (file, GST_ELEMENT_RANK_PRIMARY);
+ 
+  /* register sink pads */
+  gst_element_factory_add_pad_template (file, gst_vorbisdec_sink_template);
+  /* register src pads */
+  gst_element_factory_add_pad_template (file, gst_vorbisdec_src_template);
+  
+  gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (file));
+
+  /* this filter needs the bytestream package */
+  if (!gst_library_load ("gstbytestream"))
+    return FALSE;
+
+  type = gst_type_factory_new (&vorbisdefinition);
+  gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (type));
+
+  return TRUE;
+}
+
+GstPluginDesc plugin_desc = {
+  GST_VERSION_MAJOR,
+  GST_VERSION_MINOR,
+  "tremor",
+  plugin_init
+};