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gst/rtpmanager/: Added simple SSRC demuxer.

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Original commit message from CVS:
* gst/rtpmanager/Makefile.am:
* gst/rtpmanager/gstrtpmanager.c: (plugin_init):
* gst/rtpmanager/gstrtpssrcdemux.c: (find_pad_for_ssrc),
(create_pad_for_ssrc), (gst_rtp_ssrc_demux_base_init),
(gst_rtp_ssrc_demux_class_init), (gst_rtp_ssrc_demux_init),
(gst_rtp_ssrc_demux_finalize), (gst_rtp_ssrc_demux_sink_event),
(gst_rtp_ssrc_demux_chain), (gst_rtp_ssrc_demux_src_event),
(gst_rtp_ssrc_demux_change_state):
* gst/rtpmanager/gstrtpssrcdemux.h:
Added simple SSRC demuxer.
This commit is contained in:
Wim Taymans 2007-04-04 10:23:15 +00:00
parent 1f426a417e
commit 12192a5fac
5 changed files with 373 additions and 0 deletions
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13
ChangeLog
View file

@ -1,3 +1,16 @@
2007-04-04 Wim Taymans <wim@fluendo.com>
* gst/rtpmanager/Makefile.am:
* gst/rtpmanager/gstrtpmanager.c: (plugin_init):
* gst/rtpmanager/gstrtpssrcdemux.c: (find_pad_for_ssrc),
(create_pad_for_ssrc), (gst_rtp_ssrc_demux_base_init),
(gst_rtp_ssrc_demux_class_init), (gst_rtp_ssrc_demux_init),
(gst_rtp_ssrc_demux_finalize), (gst_rtp_ssrc_demux_sink_event),
(gst_rtp_ssrc_demux_chain), (gst_rtp_ssrc_demux_src_event),
(gst_rtp_ssrc_demux_change_state):
* gst/rtpmanager/gstrtpssrcdemux.h:
Added simple SSRC demuxer.
2007-04-04 Stefan Kost <ensonic@users.sf.net>
* ext/jack/gstjackaudiosink.c: (gst_jack_ring_buffer_open_device),

2
gst/rtpmanager/Makefile.am
View file

@ -7,6 +7,7 @@ libgstrtpmanager_la_SOURCES = gstrtpmanager.c \
async_jitter_queue.c \
gstrtpjitterbuffer.c \
gstrtpptdemux.c \
gstrtpssrcdemux.c \
gstrtpsession.c
noinst_HEADERS = gstrtpbin.h \
@ -14,6 +15,7 @@ noinst_HEADERS = gstrtpbin.h \
async_jitter_queue.h \
gstrtpjitterbuffer.h \
gstrtpptdemux.h \
gstrtpssrcdemux.h \
gstrtpsession.h
libgstrtpmanager_la_CFLAGS = $(GST_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS) $(ERROR_CFLAGS)

5
gst/rtpmanager/gstrtpmanager.c
View file

@ -25,6 +25,7 @@
#include "gstrtpjitterbuffer.h"
#include "gstrtpptdemux.h"
#include "gstrtpsession.h"
#include "gstrtpssrcdemux.h"
static gboolean
plugin_init (GstPlugin * plugin)
@ -45,6 +46,10 @@ plugin_init (GstPlugin * plugin)
GST_TYPE_RTP_SESSION))
return FALSE;
if (!gst_element_register (plugin, "rtpssrcdemux", GST_RANK_NONE,
GST_TYPE_RTP_SSRC_DEMUX))
return FALSE;
return TRUE;
}

303
gst/rtpmanager/gstrtpssrcdemux.c Normal file
View file

@ -0,0 +1,303 @@
/* GStreamer
* Copyright (C) <2007> Wim Taymans <wim@fluendo.com>
*
* RTP SSRC demuxer
*
* 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 <gst/rtp/gstrtpbuffer.h>
#include "gstrtpssrcdemux.h"
/* generic templates */
static GstStaticPadTemplate rtp_ssrc_demux_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp")
);
static GstStaticPadTemplate rtp_ssrc_demux_src_template =
GST_STATIC_PAD_TEMPLATE ("src_%d",
GST_PAD_SRC,
GST_PAD_SOMETIMES,
GST_STATIC_CAPS ("application/x-rtp")
);
static GstElementDetails gst_rtp_ssrc_demux_details = {
"RTP SSRC Demux",
"Codec/Demux/Network",
"Splits RTP streams based on the SSRC",
"Wim Taymans <wim@fluendo.com>"
};
GST_DEBUG_CATEGORY_STATIC (gst_rtp_ssrc_demux_debug);
#define GST_CAT_DEFAULT gst_rtp_ssrc_demux_debug
/* signals */
enum
{
LAST_SIGNAL
};
GST_BOILERPLATE (GstRTPSsrcDemux, gst_rtp_ssrc_demux, GstElement,
GST_TYPE_ELEMENT);
/* GObject vmethods */
static void gst_rtp_ssrc_demux_finalize (GObject * object);
/* GstElement vmethods */
static GstStateChangeReturn gst_rtp_ssrc_demux_change_state (GstElement *
element, GstStateChange transition);
/* sinkpad stuff */
static GstFlowReturn gst_rtp_ssrc_demux_chain (GstPad * pad, GstBuffer * buf);
static gboolean gst_rtp_ssrc_demux_sink_event (GstPad * pad, GstEvent * event);
/* srcpad stuff */
static gboolean gst_rtp_ssrc_demux_src_event (GstPad * pad, GstEvent * event);
/* static guint gst_rtp_ssrc_demux_signals[LAST_SIGNAL] = { 0 }; */
/**
* Item for storing GstPad <-> SSRC pairs.
*/
struct _GstRTPSsrcDemuxPad
{
GstPad *pad;
guint32 ssrc;
};
/* find a src pad for a given SSRC, returns NULL if the SSRC was not found
*/
static GstPad *
find_pad_for_ssrc (GstRTPSsrcDemux * demux, guint32 ssrc)
{
GSList *walk;
for (walk = demux->srcpads; walk; walk = g_slist_next (walk)) {
GstRTPSsrcDemuxPad *pad = (GstRTPSsrcDemuxPad *) walk->data;
if (pad->ssrc == ssrc)
return pad->pad;
}
return NULL;
}
static GstPad *
create_pad_for_ssrc (GstRTPSsrcDemux * demux, guint32 ssrc)
{
GstPad *result;
GstElementClass *klass;
GstPadTemplate *templ;
gchar *padname;
GstRTPSsrcDemuxPad *demuxpad;
klass = GST_ELEMENT_GET_CLASS (demux);
templ = gst_element_class_get_pad_template (klass, "src_%d");
padname = g_strdup_printf ("src_%d", ssrc);
result = gst_pad_new_from_template (templ, padname);
g_free (padname);
/* wrap in structure and add to list */
demuxpad = g_new0 (GstRTPSsrcDemuxPad, 1);
demuxpad->ssrc = ssrc;
demuxpad->pad = result;
demux->srcpads = g_slist_prepend (demux->srcpads, demuxpad);
/* copy caps from input */
gst_pad_set_caps (result, GST_PAD_CAPS (demux->sinkpad));
gst_pad_set_event_function (result, gst_rtp_ssrc_demux_src_event);
gst_pad_set_active (result, TRUE);
gst_element_add_pad (GST_ELEMENT_CAST (demux), result);
return result;
}
static void
gst_rtp_ssrc_demux_base_init (gpointer g_class)
{
GstElementClass *gstelement_klass = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (gstelement_klass,
gst_static_pad_template_get (&rtp_ssrc_demux_sink_template));
gst_element_class_add_pad_template (gstelement_klass,
gst_static_pad_template_get (&rtp_ssrc_demux_src_template));
gst_element_class_set_details (gstelement_klass, &gst_rtp_ssrc_demux_details);
}
static void
gst_rtp_ssrc_demux_class_init (GstRTPSsrcDemuxClass * klass)
{
GObjectClass *gobject_klass;
GstElementClass *gstelement_klass;
gobject_klass = (GObjectClass *) klass;
gstelement_klass = (GstElementClass *) klass;
gobject_klass->finalize = GST_DEBUG_FUNCPTR (gst_rtp_ssrc_demux_finalize);
gstelement_klass->change_state =
GST_DEBUG_FUNCPTR (gst_rtp_ssrc_demux_change_state);
GST_DEBUG_CATEGORY_INIT (gst_rtp_ssrc_demux_debug,
"rtpssrcdemux", 0, "RTP SSRC demuxer");
}
static void
gst_rtp_ssrc_demux_init (GstRTPSsrcDemux * demux,
GstRTPSsrcDemuxClass * g_class)
{
GstElementClass *klass = GST_ELEMENT_GET_CLASS (demux);
demux->sinkpad =
gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
"sink"), "sink");
gst_pad_set_chain_function (demux->sinkpad, gst_rtp_ssrc_demux_chain);
gst_pad_set_event_function (demux->sinkpad, gst_rtp_ssrc_demux_sink_event);
gst_element_add_pad (GST_ELEMENT_CAST (demux), demux->sinkpad);
}
static void
gst_rtp_ssrc_demux_finalize (GObject * object)
{
GstRTPSsrcDemux *demux;
demux = GST_RTP_SSRC_DEMUX (object);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
gst_rtp_ssrc_demux_sink_event (GstPad * pad, GstEvent * event)
{
GstRTPSsrcDemux *demux;
gboolean res = FALSE;
demux = GST_RTP_SSRC_DEMUX (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:
default:
res = gst_pad_event_default (pad, event);
break;
}
gst_object_unref (demux);
return res;
}
static GstFlowReturn
gst_rtp_ssrc_demux_chain (GstPad * pad, GstBuffer * buf)
{
GstFlowReturn ret;
GstRTPSsrcDemux *demux;
guint32 ssrc;
GstPad *srcpad;
demux = GST_RTP_SSRC_DEMUX (GST_OBJECT_PARENT (pad));
if (!gst_rtp_buffer_validate (buf))
goto invalid_payload;
ssrc = gst_rtp_buffer_get_ssrc (buf);
srcpad = find_pad_for_ssrc (demux, ssrc);
if (srcpad == NULL) {
srcpad = create_pad_for_ssrc (demux, ssrc);
if (!srcpad)
goto create_failed;
}
/* push to srcpad */
ret = gst_pad_push (srcpad, buf);
return ret;
/* ERRORS */
invalid_payload:
{
/* this is not fatal yet */
GST_ELEMENT_WARNING (demux, STREAM, DECODE, (NULL),
("Dropping invalid RTP payload"));
gst_buffer_unref (buf);
return GST_FLOW_OK;
}
create_failed:
{
/* this is not fatal yet */
GST_ELEMENT_ERROR (demux, STREAM, DECODE, (NULL),
("Could not create new pad"));
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
}
static gboolean
gst_rtp_ssrc_demux_src_event (GstPad * pad, GstEvent * event)
{
GstRTPSsrcDemux *demux;
gboolean res = FALSE;
demux = GST_RTP_SSRC_DEMUX (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
default:
res = gst_pad_event_default (pad, event);
break;
}
gst_object_unref (demux);
return res;
}
static GstStateChangeReturn
gst_rtp_ssrc_demux_change_state (GstElement * element,
GstStateChange transition)
{
GstStateChangeReturn ret;
GstRTPSsrcDemux *demux;
demux = GST_RTP_SSRC_DEMUX (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
case GST_STATE_CHANGE_READY_TO_PAUSED:
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
case GST_STATE_CHANGE_PAUSED_TO_READY:
case GST_STATE_CHANGE_READY_TO_NULL:
default:
break;
}
return ret;
}

50
gst/rtpmanager/gstrtpssrcdemux.h Normal file
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@ -0,0 +1,50 @@
/* 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.
*/
#ifndef __GST_RTP_SSRC_DEMUX_H__
#define __GST_RTP_SSRC_DEMUX_H__
#include <gst/gst.h>
#define GST_TYPE_RTP_SSRC_DEMUX (gst_rtp_ssrc_demux_get_type())
#define GST_RTP_SSRC_DEMUX(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_SSRC_DEMUX,GstRTPSsrcDemux))
#define GST_RTP_SSRC_DEMUX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_SSRC_DEMUX,GstRTPSsrcDemuxClass))
#define GST_IS_RTP_SSRC_DEMUX(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_SSRC_DEMUX))
#define GST_IS_RTP_SSRC_DEMUX_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_SSRC_DEMUX))
typedef struct _GstRTPSsrcDemux GstRTPSsrcDemux;
typedef struct _GstRTPSsrcDemuxClass GstRTPSsrcDemuxClass;
typedef struct _GstRTPSsrcDemuxPad GstRTPSsrcDemuxPad;
struct _GstRTPSsrcDemux
{
GstElement parent;
GstPad *sinkpad;
GSList *srcpads;
};
struct _GstRTPSsrcDemuxClass
{
GstElementClass parent_class;
};
GType gst_rtp_ssrc_demux_get_type (void);
#endif /* __GST_RTP_SSRC_DEMUX_H__ */