gst/rtp/: Added simple mpeg transport stream payloader.

Original commit message from CVS:
* gst/rtp/Makefile.am:
* gst/rtp/gstrtp.c: (plugin_init):
* gst/rtp/gstrtpmp2tpay.c: (gst_rtp_mp2t_pay_base_init),
(gst_rtp_mp2t_pay_class_init), (gst_rtp_mp2t_pay_init),
(gst_rtp_mp2t_pay_setcaps), (gst_rtp_mp2t_pay_handle_buffer),
(gst_rtp_mp2t_pay_plugin_init):
* gst/rtp/gstrtpmp2tpay.h:
Added simple mpeg transport stream payloader.

1 files changed, 159 insertions, 0 deletions

diff --git a/gst/rtp/gstrtpmp2tpay.c b/gst/rtp/gstrtpmp2tpay.c
new file mode 100644
index 00000000..acc66d64
--- /dev/null
+++ b/gst/rtp/gstrtpmp2tpay.c
@@ -0,0 +1,159 @@
+/* GStreamer
+ * Copyright (C) <2007> Wim Taymans <wim@fluendo.com>
+ *
+ * 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 <stdlib.h>
+#include <string.h>
+#include <gst/rtp/gstrtpbuffer.h>
+
+#include "gstrtpmp2tpay.h"
+
+/* elementfactory information */
+static const GstElementDetails gst_rtp_mp2t_pay_details =
+GST_ELEMENT_DETAILS ("RTP MP2T audio payloader",
+    "Codec/Payloader/Network",
+    "Payload-encodes MPEG2 TS into RTP packets (RFC 2250)",
+    "Wim Taymans <wim@fluendo.com>");
+
+static GstStaticPadTemplate gst_rtp_mp2t_pay_sink_template =
+GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS ("video/mpegts,"
+        "packetsize=(int)188," "systemstream=(boolean)true")
+    );
+
+static GstStaticPadTemplate gst_rtp_mp2t_pay_src_template =
+GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS ("application/x-rtp, "
+        "media = (string) \"video\", "
+        "payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", "
+        "clock-rate = (int) 90000, " "encoding-name = (string) \"MP2T-ES\"")
+    );
+
+static gboolean gst_rtp_mp2t_pay_setcaps (GstBaseRTPPayload * payload,
+    GstCaps * caps);
+static GstFlowReturn gst_rtp_mp2t_pay_handle_buffer (GstBaseRTPPayload *
+    payload, GstBuffer * buffer);
+
+GST_BOILERPLATE (GstRTPMP2TPay, gst_rtp_mp2t_pay, GstBaseRTPPayload,
+    GST_TYPE_BASE_RTP_PAYLOAD);
+
+static void
+gst_rtp_mp2t_pay_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_mp2t_pay_sink_template));
+  gst_element_class_add_pad_template (element_class,
+      gst_static_pad_template_get (&gst_rtp_mp2t_pay_src_template));
+  gst_element_class_set_details (element_class, &gst_rtp_mp2t_pay_details);
+}
+
+static void
+gst_rtp_mp2t_pay_class_init (GstRTPMP2TPayClass * klass)
+{
+  GObjectClass *gobject_class;
+  GstElementClass *gstelement_class;
+  GstBaseRTPPayloadClass *gstbasertppayload_class;
+
+  gobject_class = (GObjectClass *) klass;
+  gstelement_class = (GstElementClass *) klass;
+  gstbasertppayload_class = (GstBaseRTPPayloadClass *) klass;
+
+  gstbasertppayload_class->set_caps = gst_rtp_mp2t_pay_setcaps;
+  gstbasertppayload_class->handle_buffer = gst_rtp_mp2t_pay_handle_buffer;
+}
+
+static void
+gst_rtp_mp2t_pay_init (GstRTPMP2TPay * rtpmp2tpay, GstRTPMP2TPayClass * klass)
+{
+  GST_BASE_RTP_PAYLOAD (rtpmp2tpay)->clock_rate = 90000;
+  GST_BASE_RTP_PAYLOAD_PT (rtpmp2tpay) = GST_RTP_PAYLOAD_MP2T;
+}
+
+static gboolean
+gst_rtp_mp2t_pay_setcaps (GstBaseRTPPayload * payload, GstCaps * caps)
+{
+  const char *stname;
+  GstStructure *structure;
+
+  structure = gst_caps_get_structure (caps, 0);
+
+  stname = gst_structure_get_name (structure);
+
+  gst_basertppayload_set_options (payload, "video", TRUE, "MP2T-ES", 90000);
+  gst_basertppayload_set_outcaps (payload, NULL);
+
+  return TRUE;
+}
+
+static GstFlowReturn
+gst_rtp_mp2t_pay_handle_buffer (GstBaseRTPPayload * basepayload,
+    GstBuffer * buffer)
+{
+  GstRTPMP2TPay *rtpmp2tpay;
+  guint size, payload_len;
+  GstBuffer *outbuf;
+  guint8 *payload, *data;
+  GstClockTime timestamp;
+  GstFlowReturn ret;
+
+  rtpmp2tpay = GST_RTP_MP2T_PAY (basepayload);
+
+  size = GST_BUFFER_SIZE (buffer);
+  data = GST_BUFFER_DATA (buffer);
+  timestamp = GST_BUFFER_TIMESTAMP (buffer);
+
+  /* FIXME, only one MP2T frame per RTP packet for now */
+  payload_len = size;
+
+  outbuf = gst_rtp_buffer_new_allocate (payload_len, 0, 0);
+
+  /* copy timestamp */
+  GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
+
+  /* get payload */
+  payload = gst_rtp_buffer_get_payload (outbuf);
+
+  /* copy data in payload */
+  memcpy (payload, data, size);
+
+  gst_buffer_unref (buffer);
+
+  GST_DEBUG_OBJECT (rtpmp2tpay, "pushing buffer of size %d",
+      GST_BUFFER_SIZE (outbuf));
+
+  ret = gst_basertppayload_push (basepayload, outbuf);
+
+  return ret;
+}
+
+gboolean
+gst_rtp_mp2t_pay_plugin_init (GstPlugin * plugin)
+{
+  return gst_element_register (plugin, "rtpmp2tpay",
+      GST_RANK_NONE, GST_TYPE_RTP_MP2T_PAY);
+}