--- /dev/null
+/* GStreamer
+ * Copyright (C) <2008> Wim Taymans <wim.taymans@gmail.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 <gst/rtp/gstrtpbuffer.h>
+
+#include <string.h>
+#include "gstrtpmp1sdepay.h"
+
+/* elementfactory information */
+static const GstElementDetails gst_rtp_mp1sdepay_details =
+GST_ELEMENT_DETAILS ("RTP packet depayloader",
+ "Codec/Depayloader/Network",
+ "Extracts MPEG1 System Streams from RTP packets (RFC 3555)",
+ "Wim Taymans <wim.taymans@gmail.com>");
+
+/* RtpMP1SDepay signals and args */
+enum
+{
+ /* FILL ME */
+ LAST_SIGNAL
+};
+
+enum
+{
+ PROP_0,
+ PROP_LAST
+};
+
+static GstStaticPadTemplate gst_rtp_mp1s_depay_src_template =
+GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("video/mpeg,systemstream=(boolean)true")
+ );
+
+/* The spec says video/MP1S but I have seen streams with other/MP1S so we will
+ * allow them both */
+static GstStaticPadTemplate gst_rtp_mp1s_depay_sink_template =
+ GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("application/x-rtp, "
+ "media = (string) \"other\", "
+ "payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", "
+ "clock-rate = (int) [1, MAX ], " "encoding-name = (string) \"MP1S\";"
+ "application/x-rtp, "
+ "media = (string) \"video\", "
+ "payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", "
+ "clock-rate = (int) [1, MAX ], " "encoding-name = (string) \"MP1S\"")
+ );
+
+GST_BOILERPLATE (GstRtpMP1SDepay, gst_rtp_mp1s_depay, GstBaseRTPDepayload,
+ GST_TYPE_BASE_RTP_DEPAYLOAD);
+
+static gboolean gst_rtp_mp1s_depay_setcaps (GstBaseRTPDepayload * depayload,
+ GstCaps * caps);
+static GstBuffer *gst_rtp_mp1s_depay_process (GstBaseRTPDepayload * depayload,
+ GstBuffer * buf);
+
+static void gst_rtp_mp1s_depay_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_rtp_mp1s_depay_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+
+static GstStateChangeReturn gst_rtp_mp1s_depay_change_state (GstElement *
+ element, GstStateChange transition);
+
+
+static void
+gst_rtp_mp1s_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_mp1s_depay_src_template));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_rtp_mp1s_depay_sink_template));
+
+ gst_element_class_set_details (element_class, &gst_rtp_mp1sdepay_details);
+}
+
+static void
+gst_rtp_mp1s_depay_class_init (GstRtpMP1SDepayClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+ GstBaseRTPDepayloadClass *gstbasertpdepayload_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
+
+ gstbasertpdepayload_class = (GstBaseRTPDepayloadClass *) klass;
+
+ parent_class = g_type_class_peek_parent (klass);
+
+ gstbasertpdepayload_class->process = gst_rtp_mp1s_depay_process;
+ gstbasertpdepayload_class->set_caps = gst_rtp_mp1s_depay_setcaps;
+
+ gobject_class->set_property = gst_rtp_mp1s_depay_set_property;
+ gobject_class->get_property = gst_rtp_mp1s_depay_get_property;
+
+ gstelement_class->change_state = gst_rtp_mp1s_depay_change_state;
+}
+
+static void
+gst_rtp_mp1s_depay_init (GstRtpMP1SDepay * rtpmp1sdepay,
+ GstRtpMP1SDepayClass * klass)
+{
+}
+
+static gboolean
+gst_rtp_mp1s_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
+{
+ GstCaps *srccaps;
+ GstStructure *structure;
+ GstRtpMP1SDepay *rtpmp1sdepay;
+ gint clock_rate = 90000; /* default */
+
+ rtpmp1sdepay = GST_RTP_MP1S_DEPAY (depayload);
+
+ structure = gst_caps_get_structure (caps, 0);
+ gst_structure_get_int (structure, "clock-rate", &clock_rate);
+ depayload->clock_rate = clock_rate;
+
+ srccaps = gst_caps_new_simple ("video/mpeg",
+ "systemstream", G_TYPE_BOOLEAN, TRUE, NULL);
+ gst_pad_set_caps (GST_BASE_RTP_DEPAYLOAD_SRCPAD (depayload), srccaps);
+ gst_caps_unref (srccaps);
+
+ return TRUE;
+}
+
+static GstBuffer *
+gst_rtp_mp1s_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
+{
+ GstRtpMP1SDepay *rtpmp1sdepay;
+ GstBuffer *outbuf;
+ gint payload_len;
+
+ rtpmp1sdepay = GST_RTP_MP1S_DEPAY (depayload);
+
+ if (G_UNLIKELY (!gst_rtp_buffer_validate (buf)))
+ goto bad_packet;
+
+ payload_len = gst_rtp_buffer_get_payload_len (buf);
+
+ outbuf = gst_rtp_buffer_get_payload_subbuffer (buf, 0, -1);
+ gst_buffer_set_caps (outbuf, GST_PAD_CAPS (depayload->srcpad));
+
+ GST_DEBUG ("gst_rtp_mp1s_depay_chain: pushing buffer of size %d",
+ GST_BUFFER_SIZE (outbuf));
+
+ return outbuf;
+
+ /* ERRORS */
+bad_packet:
+ {
+ GST_ELEMENT_WARNING (rtpmp1sdepay, STREAM, DECODE,
+ (NULL), ("Packet did not validate"));
+ return NULL;
+ }
+}
+
+static void
+gst_rtp_mp1s_depay_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstRtpMP1SDepay *rtpmp1sdepay;
+
+ rtpmp1sdepay = GST_RTP_MP1S_DEPAY (object);
+
+ switch (prop_id) {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_rtp_mp1s_depay_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ GstRtpMP1SDepay *rtpmp1sdepay;
+
+ rtpmp1sdepay = GST_RTP_MP1S_DEPAY (object);
+
+ switch (prop_id) {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static GstStateChangeReturn
+gst_rtp_mp1s_depay_change_state (GstElement * element,
+ GstStateChange transition)
+{
+ GstRtpMP1SDepay *rtpmp1sdepay;
+ GstStateChangeReturn ret;
+
+ rtpmp1sdepay = GST_RTP_MP1S_DEPAY (element);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_NULL_TO_READY:
+ break;
+ case GST_STATE_CHANGE_READY_TO_PAUSED:
+ break;
+ default:
+ break;
+ }
+
+ ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_READY_TO_NULL:
+ break;
+ default:
+ break;
+ }
+ return ret;
+}
+
+gboolean
+gst_rtp_mp1s_depay_plugin_init (GstPlugin * plugin)
+{
+ return gst_element_register (plugin, "rtpmp1sdepay",
+ GST_RANK_MARGINAL, GST_TYPE_RTP_MP1S_DEPAY);
+}
--- /dev/null
+/* GStreamer
+ * Copyright (C) <2006> 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.
+ */
+
+#ifndef __GST_RTP_MP1S_DEPAY_H__
+#define __GST_RTP_MP1S_DEPAY_H__
+
+#include <gst/gst.h>
+#include <gst/base/gstadapter.h>
+#include <gst/rtp/gstbasertpdepayload.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_RTP_MP1S_DEPAY \
+ (gst_rtp_mp1s_depay_get_type())
+#define GST_RTP_MP1S_DEPAY(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_MP1S_DEPAY,GstRtpMP1SDepay))
+#define GST_RTP_MP1S_DEPAY_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_MP1S_DEPAY,GstRtpMP1SDepayClass))
+#define GST_IS_RTP_MP1S_DEPAY(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_MP1S_DEPAY))
+#define GST_IS_RTP_MP1S_DEPAY_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_MP1S_DEPAY))
+typedef struct _GstRtpMP1SDepay GstRtpMP1SDepay;
+typedef struct _GstRtpMP1SDepayClass GstRtpMP1SDepayClass;
+
+struct _GstRtpMP1SDepay
+{
+ GstBaseRTPDepayload depayload;
+};
+
+struct _GstRtpMP1SDepayClass
+{
+ GstBaseRTPDepayloadClass parent_class;
+};
+
+gboolean gst_rtp_mp1s_depay_plugin_init (GstPlugin * plugin);
+
+G_END_DECLS
+
+#endif /* __GST_RTP_MP1S_DEPAY_H__ */
projects / platform / upstream / gstreamer.git / commitdiff