1 files changed, 123 insertions, 0 deletions
diff --git a/gst/rtp/gstrtpopusdepay.c b/gst/rtp/gstrtpopusdepay.c
new file mode 100644
index 000000000..0f1869ed5
--- /dev/null
+++ b/gst/rtp/gstrtpopusdepay.c
@@ -0,0 +1,123 @@
+/*
+ * Opus Depayloader Gst Element
+ *
+ *   @author: Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk>
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include <string.h>
+#include <stdlib.h>
+#include <gst/rtp/gstrtpbuffer.h>
+#include "gstrtpopusdepay.h"
+
+GST_DEBUG_CATEGORY_STATIC (rtpopusdepay_debug);
+#define GST_CAT_DEFAULT (rtpopusdepay_debug)
+
+
+
+static GstStaticPadTemplate gst_rtp_opus_depay_sink_template =
+GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS ("application/x-rtp, "
+        "media = (string) \"audio\", "
+        "payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ","
+        "clock-rate = (int) 48000, "
+        "encoding-name = (string) \"X-GST-OPUS-DRAFT-SPITTKA-00\"")
+    );
+
+static GstStaticPadTemplate gst_rtp_opus_depay_src_template =
+GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS ("audio/x-opus")
+    );
+
+static GstBuffer *gst_rtp_opus_depay_process (GstBaseRTPDepayload * depayload,
+    GstBuffer * buf);
+static gboolean gst_rtp_opus_depay_setcaps (GstBaseRTPDepayload * depayload,
+    GstCaps * caps);
+
+GST_BOILERPLATE (GstRTPOpusDepay, gst_rtp_opus_depay, GstBaseRTPDepayload,
+    GST_TYPE_BASE_RTP_DEPAYLOAD);
+
+static void
+gst_rtp_opus_depay_base_init (gpointer klass)
+{
+  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+
+  gst_element_class_add_pad_template (element_class,
+      gst_static_pad_template_get (&gst_rtp_opus_depay_src_template));
+  gst_element_class_add_pad_template (element_class,
+      gst_static_pad_template_get (&gst_rtp_opus_depay_sink_template));
+  gst_element_class_set_details_simple (element_class,
+      "RTP Opus packet depayloader", "Codec/Depayloader/Network/RTP",
+      "Extracts Opus audio from RTP packets",
+      "Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk>");
+}
+
+static void
+gst_rtp_opus_depay_class_init (GstRTPOpusDepayClass * klass)
+{
+  GstBaseRTPDepayloadClass *gstbasertpdepayload_class;
+
+  gstbasertpdepayload_class = (GstBaseRTPDepayloadClass *) klass;
+
+  gstbasertpdepayload_class->process = gst_rtp_opus_depay_process;
+  gstbasertpdepayload_class->set_caps = gst_rtp_opus_depay_setcaps;
+
+  GST_DEBUG_CATEGORY_INIT (rtpopusdepay_debug, "rtpopusdepay", 0,
+      "Opus RTP Depayloader");
+}
+
+static void
+gst_rtp_opus_depay_init (GstRTPOpusDepay * rtpopusdepay,
+    GstRTPOpusDepayClass * klass)
+{
+
+}
+
+static gboolean
+gst_rtp_opus_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
+{
+  GstCaps *srccaps;
+  gboolean ret;
+
+  srccaps = gst_caps_new_simple ("audio/x-opus", NULL);
+  ret = gst_pad_set_caps (GST_BASE_RTP_DEPAYLOAD_SRCPAD (depayload), srccaps);
+
+  GST_DEBUG_OBJECT (depayload,
+      "set caps on source: %" GST_PTR_FORMAT " (ret=%d)", srccaps, ret);
+  gst_caps_unref (srccaps);
+
+  depayload->clock_rate = 48000;
+
+  return ret;
+}
+
+static GstBuffer *
+gst_rtp_opus_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
+{
+  GstBuffer *outbuf;
+  outbuf = gst_rtp_buffer_get_payload_buffer (buf);
+
+  return outbuf;
+}