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gst-libs/gst/rtp/: Added rtp payloader base class.
Original commit message from CVS: * gst-libs/gst/rtp/Makefile.am: * gst-libs/gst/rtp/gstbasertppayload.c: (gst_basertppayload_get_type), (gst_basertppayload_base_init), (gst_basertppayload_class_init), (gst_basertppayload_init), (gst_basertppayload_finalize), (gst_basertppayload_setcaps), (gst_basertppayload_chain), (gst_basertppayload_set_options), (gst_basertppayload_set_outcaps), (gst_basertppayload_push), (gst_basertppayload_set_property), (gst_basertppayload_get_property), (gst_basertppayload_change_state): * gst-libs/gst/rtp/gstbasertppayload.h: Added rtp payloader base class.
This commit is contained in:
Wim Taymans
parent
2384a21cba
commit
022f6698f0
4 changed files with 540 additions and 2 deletions
15
ChangeLog
15
ChangeLog
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@ -1,3 +1,18 @@
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2005-09-15 Wim Taymans <wim@fluendo.com>
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* gst-libs/gst/rtp/Makefile.am:
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* gst-libs/gst/rtp/gstbasertppayload.c:
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(gst_basertppayload_get_type), (gst_basertppayload_base_init),
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(gst_basertppayload_class_init), (gst_basertppayload_init),
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(gst_basertppayload_finalize), (gst_basertppayload_setcaps),
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(gst_basertppayload_chain), (gst_basertppayload_set_options),
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(gst_basertppayload_set_outcaps), (gst_basertppayload_push),
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(gst_basertppayload_set_property),
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(gst_basertppayload_get_property),
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(gst_basertppayload_change_state):
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* gst-libs/gst/rtp/gstbasertppayload.h:
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Added rtp payloader base class.
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2005-09-15 Andy Wingo <wingo@pobox.com>
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* configure.ac (plugindir): Remove the EOL matcher from the
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@ -1,10 +1,15 @@
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libgstrtpincludedir = $(includedir)/gstreamer-@GST_MAJORMINOR@/gst/rtp
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libgstrtpinclude_HEADERS = gstrtpbuffer.h gstbasertpdepayload.h
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libgstrtpinclude_HEADERS = gstrtpbuffer.h \
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gstbasertppayload.h \
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gstbasertpdepayload.h
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lib_LTLIBRARIES = libgstrtp-@GST_MAJORMINOR@.la
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libgstrtp_@GST_MAJORMINOR@_la_SOURCES = gstrtpbuffer.c gstbasertpdepayload.c
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libgstrtp_@GST_MAJORMINOR@_la_SOURCES = gstrtpbuffer.c \
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gstbasertppayload.c \
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gstbasertpdepayload.c
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libgstrtp_@GST_MAJORMINOR@_la_CFLAGS = $(GST_CFLAGS) -I$(top_srcdir)/gst/tags
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libgstrtp_@GST_MAJORMINOR@_la_LIBADD = $(GST_LIBS)
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414
gst-libs/gst/rtp/gstbasertppayload.c
Normal file
414
gst-libs/gst/rtp/gstbasertppayload.c
Normal file
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@ -0,0 +1,414 @@
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/* GStreamer
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* Copyright (C) <2005> Wim Taymans <wim@fluendo.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <string.h>
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#include <gst/rtp/gstrtpbuffer.h>
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#include "gstbasertppayload.h"
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/* BaseRTPPayload signals and args */
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enum
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{
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/* FILL ME */
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LAST_SIGNAL
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};
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#define DEFAULT_MTU 1024
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#define DEFAULT_PT 96
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#define DEFAULT_SSRC 0
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enum
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{
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PROP_0,
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PROP_MTU,
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PROP_PT,
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PROP_SSRC,
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PROP_TIMESTAMP,
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PROP_SEQNUM
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};
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static void gst_basertppayload_class_init (GstBaseRTPPayloadClass * klass);
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static void gst_basertppayload_base_init (GstBaseRTPPayloadClass * klass);
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static void gst_basertppayload_init (GstBaseRTPPayload * basertppayload,
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gpointer g_class);
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static void gst_basertppayload_finalize (GObject * object);
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static gboolean gst_basertppayload_setcaps (GstPad * pad, GstCaps * caps);
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static GstFlowReturn gst_basertppayload_chain (GstPad * pad,
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GstBuffer * buffer);
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static void gst_basertppayload_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_basertppayload_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GstStateChangeReturn gst_basertppayload_change_state (GstElement *
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element, GstStateChange transition);
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static GstElementClass *parent_class = NULL;
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GType
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gst_basertppayload_get_type (void)
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{
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static GType basertppayload_type = 0;
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if (!basertppayload_type) {
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static const GTypeInfo basertppayload_info = {
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sizeof (GstBaseRTPPayloadClass),
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(GBaseInitFunc) gst_basertppayload_base_init,
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NULL,
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(GClassInitFunc) gst_basertppayload_class_init,
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NULL,
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NULL,
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sizeof (GstBaseRTPPayload),
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0,
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(GInstanceInitFunc) gst_basertppayload_init,
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};
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basertppayload_type =
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g_type_register_static (GST_TYPE_ELEMENT, "GstBaseRTPPayload",
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&basertppayload_info, G_TYPE_FLAG_ABSTRACT);
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}
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return basertppayload_type;
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}
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static void
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gst_basertppayload_base_init (GstBaseRTPPayloadClass * klass)
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{
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}
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static void
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gst_basertppayload_class_init (GstBaseRTPPayloadClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
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gobject_class->finalize = gst_basertppayload_finalize;
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gobject_class->set_property = gst_basertppayload_set_property;
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gobject_class->get_property = gst_basertppayload_get_property;
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MTU,
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g_param_spec_uint ("mtu", "MTU",
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"Maximum size of one packet",
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28, G_MAXUINT, DEFAULT_MTU, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PT,
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g_param_spec_uint ("pt", "payload type",
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"The payload type of the packets",
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0, 0x80, DEFAULT_PT, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SSRC,
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g_param_spec_uint ("ssrc", "SSRC",
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"The SSRC of the packets (0 == random)",
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0, G_MAXUINT, DEFAULT_SSRC, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_TIMESTAMP,
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g_param_spec_uint ("timestamp", "Timestamp",
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"The RTP timestamp of the last processed packet",
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0, G_MAXUINT, 0, G_PARAM_READABLE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SEQNUM,
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g_param_spec_uint ("seqnum", "Sequence number",
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"The RTP sequence number of the last processed packet",
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0, G_MAXUINT, 0, G_PARAM_READABLE));
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gstelement_class->change_state = gst_basertppayload_change_state;
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}
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static void
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gst_basertppayload_init (GstBaseRTPPayload * basertppayload, gpointer g_class)
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{
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GstPadTemplate *templ;
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templ =
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gst_element_class_get_pad_template (GST_ELEMENT_CLASS (g_class), "src");
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g_return_if_fail (templ != NULL);
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basertppayload->srcpad = gst_pad_new_from_template (templ, "src");
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gst_element_add_pad (GST_ELEMENT (basertppayload), basertppayload->srcpad);
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templ =
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gst_element_class_get_pad_template (GST_ELEMENT_CLASS (g_class), "sink");
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g_return_if_fail (templ != NULL);
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basertppayload->sinkpad = gst_pad_new_from_template (templ, "sink");
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gst_pad_set_setcaps_function (basertppayload->sinkpad,
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gst_basertppayload_setcaps);
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gst_pad_set_chain_function (basertppayload->sinkpad,
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gst_basertppayload_chain);
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gst_element_add_pad (GST_ELEMENT (basertppayload), basertppayload->sinkpad);
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basertppayload->seq_rand = g_rand_new ();
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basertppayload->ssrc_rand = g_rand_new ();
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basertppayload->ts_rand = g_rand_new ();
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basertppayload->mtu = DEFAULT_MTU;
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basertppayload->pt = DEFAULT_PT;
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basertppayload->seqnum =
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g_rand_int_range (basertppayload->seq_rand, 0, G_MAXUINT16);
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basertppayload->ssrc = DEFAULT_SSRC;
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basertppayload->ts_base = g_rand_int (basertppayload->ts_rand);
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basertppayload->clock_rate = 0;
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}
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static void
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gst_basertppayload_finalize (GObject * object)
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{
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GstBaseRTPPayload *basertppayload;
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basertppayload = GST_BASE_RTP_PAYLOAD (object);
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g_rand_free (basertppayload->seq_rand);
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basertppayload->seq_rand = NULL;
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g_rand_free (basertppayload->ssrc_rand);
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basertppayload->ssrc_rand = NULL;
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g_rand_free (basertppayload->ts_rand);
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basertppayload->ts_rand = NULL;
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static gboolean
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gst_basertppayload_setcaps (GstPad * pad, GstCaps * caps)
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{
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GstBaseRTPPayload *basertppayload;
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GstBaseRTPPayloadClass *basertppayload_class;
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gboolean ret = TRUE;
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basertppayload = GST_BASE_RTP_PAYLOAD (gst_pad_get_parent (pad));
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basertppayload_class = GST_BASE_RTP_PAYLOAD_GET_CLASS (basertppayload);
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if (basertppayload_class->set_caps)
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ret = basertppayload_class->set_caps (basertppayload, caps);
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gst_object_unref (basertppayload);
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return ret;
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}
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static GstFlowReturn
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gst_basertppayload_chain (GstPad * pad, GstBuffer * buffer)
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{
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GstBaseRTPPayload *basertppayload;
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GstBaseRTPPayloadClass *basertppayload_class;
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GstFlowReturn ret;
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basertppayload = GST_BASE_RTP_PAYLOAD (gst_pad_get_parent (pad));
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basertppayload_class = GST_BASE_RTP_PAYLOAD_GET_CLASS (basertppayload);
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if (!basertppayload_class->handle_buffer)
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goto no_function;
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ret = basertppayload_class->handle_buffer (basertppayload, buffer);
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gst_object_unref (basertppayload);
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return ret;
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/* ERRORS */
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no_function:
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{
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GST_DEBUG ("subclass did not implement handle_buffer function");
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gst_object_unref (basertppayload);
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return GST_FLOW_ERROR;
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}
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}
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void
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gst_basertppayload_set_options (GstBaseRTPPayload * payload,
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gchar * media, gboolean dynamic, gchar * encoding_name, guint32 clock_rate)
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{
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g_return_if_fail (payload != NULL);
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g_return_if_fail (clock_rate != 0);
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g_free (payload->media);
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payload->media = g_strdup (media);
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payload->dynamic = dynamic;
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g_free (payload->encoding_name);
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payload->encoding_name = g_strdup (encoding_name);
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payload->clock_rate = clock_rate;
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}
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gboolean
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gst_basertppayload_set_outcaps (GstBaseRTPPayload * payload, gchar * fieldname,
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...)
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{
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GstCaps *srccaps;
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GstStructure *s;
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srccaps = gst_caps_new_simple ("application/x-rtp",
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"media", G_TYPE_STRING, payload->media,
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"payload", G_TYPE_INT, GST_BASE_RTP_PAYLOAD_PT (payload),
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"clock_rate", G_TYPE_INT, payload->clock_rate,
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"encoding_name", G_TYPE_STRING, payload->encoding_name,
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"ssrc", G_TYPE_UINT, payload->current_ssrc,
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"clock_base", G_TYPE_UINT, payload->ts_base,
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"seqnum_base", G_TYPE_UINT, payload->seqnum_base, NULL);
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s = gst_caps_get_structure (srccaps, 0);
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if (fieldname) {
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va_list varargs;
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va_start (varargs, fieldname);
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gst_structure_set_valist (s, fieldname, varargs);
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va_end (varargs);
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}
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gst_pad_set_caps (GST_BASE_RTP_PAYLOAD_SRCPAD (payload), srccaps);
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gst_caps_unref (srccaps);
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return TRUE;
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}
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GstFlowReturn
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gst_basertppayload_push (GstBaseRTPPayload * payload, GstBuffer * buffer)
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{
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GstFlowReturn res;
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GstClockTime timestamp;
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guint32 ts;
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if (payload->clock_rate == 0)
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goto no_rate;
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gst_rtpbuffer_set_ssrc (buffer, payload->ssrc);
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gst_rtpbuffer_set_payload_type (buffer, payload->pt);
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/* can warp around, which is perfectly fine */
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gst_rtpbuffer_set_seq (buffer, payload->seqnum++);
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/* add our random offset to the timestamp */
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ts = payload->ts_base;
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timestamp = GST_BUFFER_TIMESTAMP (buffer);
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if (GST_CLOCK_TIME_IS_VALID (timestamp))
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ts += timestamp * payload->clock_rate / GST_SECOND;
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gst_rtpbuffer_set_timestamp (buffer, ts);
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payload->timestamp = ts;
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/* set caps */
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gst_buffer_set_caps (buffer, GST_PAD_CAPS (payload->srcpad));
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res = gst_pad_push (payload->srcpad, buffer);
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return res;
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/* ERRORS */
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no_rate:
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{
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GST_DEBUG ("subclass did not specify clock_rate");
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gst_buffer_unref (buffer);
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return GST_FLOW_ERROR;
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}
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}
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static void
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gst_basertppayload_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstBaseRTPPayload *basertppayload;
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basertppayload = GST_BASE_RTP_PAYLOAD (object);
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switch (prop_id) {
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case PROP_MTU:
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basertppayload->mtu = g_value_get_uint (value);
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break;
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case PROP_PT:
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basertppayload->pt = g_value_get_uint (value);
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break;
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case PROP_SSRC:
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basertppayload->ssrc = g_value_get_uint (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_basertppayload_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstBaseRTPPayload *basertppayload;
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basertppayload = GST_BASE_RTP_PAYLOAD (object);
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switch (prop_id) {
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case PROP_MTU:
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g_value_set_uint (value, basertppayload->mtu);
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break;
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case PROP_PT:
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g_value_set_uint (value, basertppayload->pt);
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break;
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case PROP_SSRC:
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g_value_set_uint (value, basertppayload->ssrc);
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break;
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case PROP_TIMESTAMP:
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g_value_set_uint (value, basertppayload->timestamp);
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break;
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case PROP_SEQNUM:
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g_value_set_uint (value, basertppayload->seqnum);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static GstStateChangeReturn
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gst_basertppayload_change_state (GstElement * element,
|
||||
GstStateChange transition)
|
||||
{
|
||||
GstBaseRTPPayload *basertppayload;
|
||||
GstStateChangeReturn ret;
|
||||
|
||||
basertppayload = GST_BASE_RTP_PAYLOAD (element);
|
||||
|
||||
switch (transition) {
|
||||
case GST_STATE_CHANGE_NULL_TO_READY:
|
||||
break;
|
||||
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
||||
basertppayload->seqnum_base =
|
||||
g_rand_int_range (basertppayload->seq_rand, 0, G_MAXUINT16);
|
||||
basertppayload->seqnum = basertppayload->seqnum_base;
|
||||
if (basertppayload->ssrc == 0)
|
||||
basertppayload->current_ssrc = g_rand_int (basertppayload->ssrc_rand);
|
||||
else
|
||||
basertppayload->current_ssrc = basertppayload->ssrc;
|
||||
basertppayload->ts_base = g_rand_int (basertppayload->ts_rand);
|
||||
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;
|
||||
}
|
||||
104
gst-libs/gst/rtp/gstbasertppayload.h
Normal file
104
gst-libs/gst/rtp/gstbasertppayload.h
Normal file
|
|
@ -0,0 +1,104 @@
|
|||
/* GStreamer
|
||||
* Copyright (C) <2005> 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_BASE_RTP_PAYLOAD_H__
|
||||
#define __GST_BASE_RTP_PAYLOAD_H__
|
||||
|
||||
#include <gst/gst.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GST_TYPE_BASE_RTP_PAYLOAD \
|
||||
(gst_basertppayload_get_type())
|
||||
#define GST_BASE_RTP_PAYLOAD(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_RTP_PAYLOAD,GstBaseRTPPayload))
|
||||
#define GST_BASE_RTP_PAYLOAD_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_RTP_PAYLOAD,GstBaseRTPPayload))
|
||||
#define GST_BASE_RTP_PAYLOAD_GET_CLASS(obj) \
|
||||
(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_BASE_RTP_PAYLOAD, GstBaseRTPPayloadClass))
|
||||
#define GST_IS_BASE_RTP_PAYLOAD(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_RTP_PAYLOAD))
|
||||
#define GST_IS_BASE_RTP_PAYLOAD_CLASS(obj) \
|
||||
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_RTP_PAYLOAD))
|
||||
|
||||
typedef struct _GstBaseRTPPayload GstBaseRTPPayload;
|
||||
typedef struct _GstBaseRTPPayloadClass GstBaseRTPPayloadClass;
|
||||
|
||||
#define GST_BASE_RTP_PAYLOAD_SINKPAD(payload) (GST_BASE_RTP_PAYLOAD (payload)->sinkpad)
|
||||
#define GST_BASE_RTP_PAYLOAD_SRCPAD(payload) (GST_BASE_RTP_PAYLOAD (payload)->srcpad)
|
||||
#define GST_BASE_RTP_PAYLOAD_SINKPAD(payload) (GST_BASE_RTP_PAYLOAD (payload)->sinkpad)
|
||||
|
||||
#define GST_BASE_RTP_PAYLOAD_PT(payload) (GST_BASE_RTP_PAYLOAD (payload)->pt)
|
||||
#define GST_BASE_RTP_PAYLOAD_MTU(payload) (GST_BASE_RTP_PAYLOAD (payload)->mtu)
|
||||
|
||||
struct _GstBaseRTPPayload
|
||||
{
|
||||
GstElement element;
|
||||
|
||||
GstPad *sinkpad;
|
||||
GstPad *srcpad;
|
||||
|
||||
GRand *seq_rand;
|
||||
GRand *ssrc_rand;
|
||||
GRand *ts_rand;
|
||||
|
||||
guint32 ts_base;
|
||||
guint16 seqnum_base;
|
||||
|
||||
gchar *media;
|
||||
gchar *encoding_name;
|
||||
gboolean dynamic;
|
||||
guint32 clock_rate;
|
||||
|
||||
guint32 timestamp;
|
||||
guint16 seqnum;
|
||||
guint pt;
|
||||
guint ssrc;
|
||||
guint current_ssrc;
|
||||
guint mtu;
|
||||
};
|
||||
|
||||
struct _GstBaseRTPPayloadClass
|
||||
{
|
||||
GstElementClass parent_class;
|
||||
|
||||
/* receive caps on the sink pad, configure the payloader. */
|
||||
gboolean (*set_caps) (GstBaseRTPPayload *payload, GstCaps *caps);
|
||||
/* handle a buffer, perform 0 or more gst_basertppayload_push() on
|
||||
* the RTP buffers */
|
||||
GstFlowReturn (*handle_buffer) (GstBaseRTPPayload *payload,
|
||||
GstBuffer *buffer);
|
||||
};
|
||||
|
||||
GType gst_basertppayload_get_type (void);
|
||||
|
||||
void gst_basertppayload_set_options (GstBaseRTPPayload *payload,
|
||||
gchar *media, gboolean dynamic,
|
||||
gchar *encoding_name,
|
||||
guint32 clock_rate);
|
||||
|
||||
gboolean gst_basertppayload_set_outcaps (GstBaseRTPPayload *payload,
|
||||
gchar *fieldname, ...);
|
||||
|
||||
GstFlowReturn gst_basertppayload_push (GstBaseRTPPayload *payload,
|
||||
GstBuffer *buffer);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_BASE_RTP_PAYLOAD_H__ */
|
||||
Loading…
Reference in a new issue