adding flac

Original commit message from CVS:
adding flac

1 files changed, 141 insertions, 0 deletions

diff --git a/ext/flac/gstflac.c b/ext/flac/gstflac.c
new file mode 100644
index 00000000..ff4f3577
--- /dev/null
+++ b/ext/flac/gstflac.c
@@ -0,0 +1,141 @@
+/* Gnome-Streamer
+ * 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 "gstflacenc.h"
+#include "gstflacdec.h"
+
+extern GstElementDetails flacenc_details;
+extern GstElementDetails flacdec_details;
+
+static GstCaps* 	flac_typefind 	(GstBuffer *buf, gpointer private);
+
+GstPadTemplate *dec_src_template, *dec_sink_template; 
+GstPadTemplate *enc_src_template, *enc_sink_template;
+
+static GstCaps*
+flac_caps_factory (void)
+{
+  return
+   gst_caps_new (
+  	"flac_flac",
+  	"audio/x-flac",
+  	NULL);
+}
+
+static GstCaps*
+raw_caps_factory (void)
+{
+  return
+   gst_caps_new (
+  	"flac_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 GstTypeDefinition flacdefinition = {
+  "flac_audio/x-flac",
+  "audio/x-flac",
+  ".flac",
+  flac_typefind,
+};
+
+static GstCaps* 
+flac_typefind (GstBuffer *buf, gpointer private) 
+{
+  gulong head = GULONG_FROM_BE (*((gulong *)GST_BUFFER_DATA (buf)));
+
+  if (head  != 0x664C6143)
+    return NULL;
+
+  return gst_caps_new ("flac_typefind", "audio/x-flac", NULL);
+}
+
+
+static gboolean
+plugin_init (GModule *module, GstPlugin *plugin)
+{
+  GstElementFactory *enc, *dec;
+  GstTypeFactory *type;
+  GstCaps *raw_caps, *flac_caps;
+
+  gst_plugin_set_longname (plugin, "The FLAC Lossless compressor Codec");
+
+  /* create an elementfactory for the flacenc element */
+  enc = gst_elementfactory_new ("flacenc", GST_TYPE_FLACENC,
+                                &flacenc_details);
+  g_return_val_if_fail (enc != NULL, FALSE);
+
+  raw_caps = raw_caps_factory ();
+  flac_caps = flac_caps_factory ();
+
+  /* register sink pads */
+  enc_sink_template = gst_padtemplate_new ("sink", GST_PAD_SINK, 
+		                              GST_PAD_ALWAYS, 
+					      raw_caps, NULL);
+  gst_elementfactory_add_padtemplate (enc, enc_sink_template);
+
+  /* register src pads */
+  enc_src_template = gst_padtemplate_new ("src", GST_PAD_SRC, 
+		                             GST_PAD_ALWAYS, 
+					     flac_caps, NULL);
+  gst_elementfactory_add_padtemplate (enc, enc_src_template);
+
+  gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (enc));
+
+  /* create an elementfactory for the flacdec element */
+  dec = gst_elementfactory_new("flacdec",GST_TYPE_FLACDEC,
+                               &flacdec_details);
+  g_return_val_if_fail(dec != NULL, FALSE);
+ 
+  /* register sink pads */
+  dec_sink_template = gst_padtemplate_new ("sink", GST_PAD_SINK, 
+		                              GST_PAD_ALWAYS, 
+					      flac_caps, NULL);
+  gst_elementfactory_add_padtemplate (dec, dec_sink_template);
+
+  /* register src pads */
+  dec_src_template = gst_padtemplate_new ("src", GST_PAD_SRC, 
+		                             GST_PAD_ALWAYS, 
+					     raw_caps, NULL);
+  gst_elementfactory_add_padtemplate (dec, dec_src_template);
+  
+  gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (dec));
+
+  type = gst_typefactory_new (&flacdefinition);
+  gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (type));
+
+  return TRUE;
+}
+
+GstPluginDesc plugin_desc = {
+  GST_VERSION_MAJOR,
+  GST_VERSION_MINOR,
+  "flac",
+  plugin_init
+};