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gst/rtp/: Added mpeg4 video payload encoder/decoder.

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Original commit message from CVS:
* gst/rtp/Makefile.am:
* gst/rtp/gstrtp.c: (plugin_init):
* gst/rtp/gstrtpmp4vdec.c: (gst_rtpmp4vdec_get_type),
(gst_rtpmp4vdec_base_init), (gst_rtpmp4vdec_class_init),
(gst_rtpmp4vdec_init), (gst_rtpmp4vdec_setcaps),
(gst_rtpmp4vdec_chain), (gst_rtpmp4vdec_set_property),
(gst_rtpmp4vdec_get_property), (gst_rtpmp4vdec_change_state),
(gst_rtpmp4vdec_plugin_init):
* gst/rtp/gstrtpmp4vdec.h:
* gst/rtp/gstrtpmp4venc.c: (gst_rtpmp4venc_get_type),
(gst_rtpmp4venc_base_init), (gst_rtpmp4venc_class_init),
(gst_rtpmp4venc_init), (gst_rtpmp4venc_setcaps),
(gst_rtpmp4venc_flush), (gst_rtpmp4venc_chain),
(gst_rtpmp4venc_set_property), (gst_rtpmp4venc_get_property),
(gst_rtpmp4venc_change_state), (gst_rtpmp4venc_plugin_init):
* gst/rtp/gstrtpmp4venc.h:
* gst/rtp/gstrtpmpadec.c: (gst_rtpmpadec_chain):
* gst/rtp/gstrtpmpaenc.c: (gst_rtpmpaenc_flush):
Added mpeg4 video payload encoder/decoder.
Added some docs in mpa payloader.
This commit is contained in:
Wim Taymans 2005-09-06 15:50:58 +00:00
parent a0fc384659
commit 98039503e9
15 changed files with 1740 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

23
ChangeLog
View file

@ -1,3 +1,26 @@
2005-09-06 Wim Taymans <wim@fluendo.com>
* gst/rtp/Makefile.am:
* gst/rtp/gstrtp.c: (plugin_init):
* gst/rtp/gstrtpmp4vdec.c: (gst_rtpmp4vdec_get_type),
(gst_rtpmp4vdec_base_init), (gst_rtpmp4vdec_class_init),
(gst_rtpmp4vdec_init), (gst_rtpmp4vdec_setcaps),
(gst_rtpmp4vdec_chain), (gst_rtpmp4vdec_set_property),
(gst_rtpmp4vdec_get_property), (gst_rtpmp4vdec_change_state),
(gst_rtpmp4vdec_plugin_init):
* gst/rtp/gstrtpmp4vdec.h:
* gst/rtp/gstrtpmp4venc.c: (gst_rtpmp4venc_get_type),
(gst_rtpmp4venc_base_init), (gst_rtpmp4venc_class_init),
(gst_rtpmp4venc_init), (gst_rtpmp4venc_setcaps),
(gst_rtpmp4venc_flush), (gst_rtpmp4venc_chain),
(gst_rtpmp4venc_set_property), (gst_rtpmp4venc_get_property),
(gst_rtpmp4venc_change_state), (gst_rtpmp4venc_plugin_init):
* gst/rtp/gstrtpmp4venc.h:
* gst/rtp/gstrtpmpadec.c: (gst_rtpmpadec_chain):
* gst/rtp/gstrtpmpaenc.c: (gst_rtpmpaenc_flush):
Added mpeg4 video payload encoder/decoder.
Added some docs in mpa payloader.
=== release 0.9.1 ===
2005-09-06 Thomas Vander Stichele <thomas at apestaart dot org>

6
gst/rtp/Makefile.am
View file

@ -7,7 +7,9 @@ libgstrtp_la_SOURCES = gstrtp.c \
gstrtpamrdec.c \
gstrtpamrenc.c \
gstrtph263pdec.c \
gstrtph263penc.c
gstrtph263penc.c \
gstrtpmp4venc.c \
gstrtpmp4vdec.c
#gstrtpL16enc.c gstrtpL16parse.c gstrtpgsmenc.c gstrtpgsmparse.c
@ -26,4 +28,6 @@ noinst_HEADERS = gstrtpL16enc.h \
gstrtpmpaenc.h \
gstrtph263pdec.h \
gstrtph263penc.h \
gstrtpmp4venc.h \
gstrtpmp4vdec.h \
gstrtpdec.h

8
gst/rtp/gstrtp.c
View file

@ -28,6 +28,8 @@
#include "gstrtpmpadec.h"
#include "gstrtph263pdec.h"
#include "gstrtph263penc.h"
#include "gstrtpmp4venc.h"
#include "gstrtpmp4vdec.h"
static gboolean
plugin_init (GstPlugin * plugin)
@ -53,6 +55,12 @@ plugin_init (GstPlugin * plugin)
if (!gst_rtph263pdec_plugin_init (plugin))
return FALSE;
if (!gst_rtpmp4venc_plugin_init (plugin))
return FALSE;
if (!gst_rtpmp4vdec_plugin_init (plugin))
return FALSE;
return TRUE;
}

309
gst/rtp/gstrtpmp4vdec.c Normal file
View file

@ -0,0 +1,309 @@
/* 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
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <gst/rtp/gstrtpbuffer.h>
#include <string.h>
#include "gstrtpmp4vdec.h"
/* elementfactory information */
static GstElementDetails gst_rtp_mp4vdec_details = {
"RTP packet parser",
"Codec/Parser/Network",
"Extracts MPEG4 video from RTP packets (RFC 3016)",
"Wim Taymans <wim@fluendo.com>"
};
/* RtpMP4VDec signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0,
ARG_FREQUENCY
};
static GstStaticPadTemplate gst_rtpmp4vdec_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/mpeg,"
"mpegversion=(int) 4," "systemstream=(boolean)false")
);
static GstStaticPadTemplate gst_rtpmp4vdec_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp"
/* All optional parameters
*
* "rate=(int) [1, MAX],"
* "profile-level-id=[1,MAX]"
* "config="
*/
)
);
static void gst_rtpmp4vdec_class_init (GstRtpMP4VDecClass * klass);
static void gst_rtpmp4vdec_base_init (GstRtpMP4VDecClass * klass);
static void gst_rtpmp4vdec_init (GstRtpMP4VDec * rtpmp4vdec);
static gboolean gst_rtpmp4vdec_setcaps (GstPad * pad, GstCaps * caps);
static GstFlowReturn gst_rtpmp4vdec_chain (GstPad * pad, GstBuffer * buffer);
static void gst_rtpmp4vdec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_rtpmp4vdec_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstStateChangeReturn gst_rtpmp4vdec_change_state (GstElement * element,
GstStateChange transition);
static GstElementClass *parent_class = NULL;
static GType
gst_rtpmp4vdec_get_type (void)
{
static GType rtpmp4vdec_type = 0;
if (!rtpmp4vdec_type) {
static const GTypeInfo rtpmp4vdec_info = {
sizeof (GstRtpMP4VDecClass),
(GBaseInitFunc) gst_rtpmp4vdec_base_init,
NULL,
(GClassInitFunc) gst_rtpmp4vdec_class_init,
NULL,
NULL,
sizeof (GstRtpMP4VDec),
0,
(GInstanceInitFunc) gst_rtpmp4vdec_init,
};
rtpmp4vdec_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstRtpMP4VDec",
&rtpmp4vdec_info, 0);
}
return rtpmp4vdec_type;
}
static void
gst_rtpmp4vdec_base_init (GstRtpMP4VDecClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpmp4vdec_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpmp4vdec_sink_template));
gst_element_class_set_details (element_class, &gst_rtp_mp4vdec_details);
}
static void
gst_rtpmp4vdec_class_init (GstRtpMP4VDecClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
gobject_class->set_property = gst_rtpmp4vdec_set_property;
gobject_class->get_property = gst_rtpmp4vdec_get_property;
gstelement_class->change_state = gst_rtpmp4vdec_change_state;
}
static void
gst_rtpmp4vdec_init (GstRtpMP4VDec * rtpmp4vdec)
{
rtpmp4vdec->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpmp4vdec_src_template), "src");
gst_element_add_pad (GST_ELEMENT (rtpmp4vdec), rtpmp4vdec->srcpad);
rtpmp4vdec->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpmp4vdec_sink_template), "sink");
gst_pad_set_setcaps_function (rtpmp4vdec->sinkpad, gst_rtpmp4vdec_setcaps);
gst_pad_set_chain_function (rtpmp4vdec->sinkpad, gst_rtpmp4vdec_chain);
gst_element_add_pad (GST_ELEMENT (rtpmp4vdec), rtpmp4vdec->sinkpad);
}
static gboolean
gst_rtpmp4vdec_setcaps (GstPad * pad, GstCaps * caps)
{
GstStructure *structure;
GstRtpMP4VDec *rtpmp4vdec;
GstCaps *srccaps;
rtpmp4vdec = GST_RTP_MP4V_DEC (GST_OBJECT_PARENT (pad));
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "rate", &rtpmp4vdec->rate))
rtpmp4vdec->rate = 90000;
srccaps = gst_caps_new_simple ("video/mpeg",
"mpegversion", G_TYPE_INT, 4,
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
gst_pad_set_caps (rtpmp4vdec->srcpad, srccaps);
gst_caps_unref (srccaps);
return TRUE;
}
static GstFlowReturn
gst_rtpmp4vdec_chain (GstPad * pad, GstBuffer * buf)
{
GstRtpMP4VDec *rtpmp4vdec;
GstBuffer *outbuf;
GstFlowReturn ret;
rtpmp4vdec = GST_RTP_MP4V_DEC (gst_pad_get_parent (pad));
if (!gst_rtpbuffer_validate (buf))
goto bad_packet;
{
gint payload_len;
guint8 *payload;
guint32 timestamp;
payload_len = gst_rtpbuffer_get_payload_len (buf);
payload = gst_rtpbuffer_get_payload (buf);
timestamp = gst_rtpbuffer_get_timestamp (buf);
outbuf = gst_buffer_new_and_alloc (payload_len);
memcpy (GST_BUFFER_DATA (outbuf), payload, payload_len);
gst_adapter_push (rtpmp4vdec->adapter, outbuf);
/* if this was the last packet of the VOP, create and push a buffer */
if (gst_rtpbuffer_get_marker (buf)) {
guint avail;
avail = gst_adapter_available (rtpmp4vdec->adapter);
outbuf = gst_buffer_new_and_alloc (avail);
GST_BUFFER_MALLOCDATA (outbuf) =
gst_adapter_take (rtpmp4vdec->adapter, avail);
GST_BUFFER_DATA (outbuf) = GST_BUFFER_MALLOCDATA (outbuf);
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (rtpmp4vdec->srcpad));
GST_BUFFER_TIMESTAMP (outbuf) = timestamp * GST_SECOND / rtpmp4vdec->rate;
GST_DEBUG ("gst_rtpmp4vdec_chain: pushing buffer of size %d",
GST_BUFFER_SIZE (outbuf));
ret = gst_pad_push (rtpmp4vdec->srcpad, outbuf);
} else {
ret = GST_FLOW_OK;
}
gst_buffer_unref (buf);
}
gst_object_unref (rtpmp4vdec);
return ret;
bad_packet:
{
GST_DEBUG ("Packet did not validate");
gst_buffer_unref (buf);
gst_object_unref (rtpmp4vdec);
return GST_FLOW_ERROR;
}
}
static void
gst_rtpmp4vdec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRtpMP4VDec *rtpmp4vdec;
rtpmp4vdec = GST_RTP_MP4V_DEC (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_rtpmp4vdec_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstRtpMP4VDec *rtpmp4vdec;
rtpmp4vdec = GST_RTP_MP4V_DEC (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
gst_rtpmp4vdec_change_state (GstElement * element, GstStateChange transition)
{
GstRtpMP4VDec *rtpmp4vdec;
GstStateChangeReturn ret;
rtpmp4vdec = GST_RTP_MP4V_DEC (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
rtpmp4vdec->adapter = gst_adapter_new ();
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_adapter_clear (rtpmp4vdec->adapter);
rtpmp4vdec->rate = 90000;
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
g_object_unref (rtpmp4vdec->adapter);
rtpmp4vdec->adapter = NULL;
break;
default:
break;
}
return ret;
}
gboolean
gst_rtpmp4vdec_plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rtpmp4vdec",
GST_RANK_NONE, GST_TYPE_RTP_MP4V_DEC);
}

63
gst/rtp/gstrtpmp4vdec.h Normal file
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@ -0,0 +1,63 @@
/* Gnome-Streamer
* 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_RTP_MP4V_DEC_H__
#define __GST_RTP_MP4V_DEC_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
G_BEGIN_DECLS
#define GST_TYPE_RTP_MP4V_DEC \
(gst_rtpmp4vdec_get_type())
#define GST_RTP_MP4V_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_MP4V_DEC,GstRtpMP4VDec))
#define GST_RTP_MP4V_DEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_MP4V_DEC,GstRtpMP4VDec))
#define GST_IS_RTP_MP4V_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_MP4V_DEC))
#define GST_IS_RTP_MP4V_DEC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_MP4V_DEC))
typedef struct _GstRtpMP4VDec GstRtpMP4VDec;
typedef struct _GstRtpMP4VDecClass GstRtpMP4VDecClass;
struct _GstRtpMP4VDec
{
GstElement element;
GstPad *sinkpad;
GstPad *srcpad;
GstAdapter *adapter;
gint rate;
};
struct _GstRtpMP4VDecClass
{
GstElementClass parent_class;
};
gboolean gst_rtpmp4vdec_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_RTP_MP4V_DEC_H__ */

309
gst/rtp/gstrtpmp4vdepay.c Normal file
View file

@ -0,0 +1,309 @@
/* 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
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <gst/rtp/gstrtpbuffer.h>
#include <string.h>
#include "gstrtpmp4vdec.h"
/* elementfactory information */
static GstElementDetails gst_rtp_mp4vdec_details = {
"RTP packet parser",
"Codec/Parser/Network",
"Extracts MPEG4 video from RTP packets (RFC 3016)",
"Wim Taymans <wim@fluendo.com>"
};
/* RtpMP4VDec signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0,
ARG_FREQUENCY
};
static GstStaticPadTemplate gst_rtpmp4vdec_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/mpeg,"
"mpegversion=(int) 4," "systemstream=(boolean)false")
);
static GstStaticPadTemplate gst_rtpmp4vdec_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp"
/* All optional parameters
*
* "rate=(int) [1, MAX],"
* "profile-level-id=[1,MAX]"
* "config="
*/
)
);
static void gst_rtpmp4vdec_class_init (GstRtpMP4VDecClass * klass);
static void gst_rtpmp4vdec_base_init (GstRtpMP4VDecClass * klass);
static void gst_rtpmp4vdec_init (GstRtpMP4VDec * rtpmp4vdec);
static gboolean gst_rtpmp4vdec_setcaps (GstPad * pad, GstCaps * caps);
static GstFlowReturn gst_rtpmp4vdec_chain (GstPad * pad, GstBuffer * buffer);
static void gst_rtpmp4vdec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_rtpmp4vdec_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstStateChangeReturn gst_rtpmp4vdec_change_state (GstElement * element,
GstStateChange transition);
static GstElementClass *parent_class = NULL;
static GType
gst_rtpmp4vdec_get_type (void)
{
static GType rtpmp4vdec_type = 0;
if (!rtpmp4vdec_type) {
static const GTypeInfo rtpmp4vdec_info = {
sizeof (GstRtpMP4VDecClass),
(GBaseInitFunc) gst_rtpmp4vdec_base_init,
NULL,
(GClassInitFunc) gst_rtpmp4vdec_class_init,
NULL,
NULL,
sizeof (GstRtpMP4VDec),
0,
(GInstanceInitFunc) gst_rtpmp4vdec_init,
};
rtpmp4vdec_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstRtpMP4VDec",
&rtpmp4vdec_info, 0);
}
return rtpmp4vdec_type;
}
static void
gst_rtpmp4vdec_base_init (GstRtpMP4VDecClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpmp4vdec_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpmp4vdec_sink_template));
gst_element_class_set_details (element_class, &gst_rtp_mp4vdec_details);
}
static void
gst_rtpmp4vdec_class_init (GstRtpMP4VDecClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
gobject_class->set_property = gst_rtpmp4vdec_set_property;
gobject_class->get_property = gst_rtpmp4vdec_get_property;
gstelement_class->change_state = gst_rtpmp4vdec_change_state;
}
static void
gst_rtpmp4vdec_init (GstRtpMP4VDec * rtpmp4vdec)
{
rtpmp4vdec->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpmp4vdec_src_template), "src");
gst_element_add_pad (GST_ELEMENT (rtpmp4vdec), rtpmp4vdec->srcpad);
rtpmp4vdec->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpmp4vdec_sink_template), "sink");
gst_pad_set_setcaps_function (rtpmp4vdec->sinkpad, gst_rtpmp4vdec_setcaps);
gst_pad_set_chain_function (rtpmp4vdec->sinkpad, gst_rtpmp4vdec_chain);
gst_element_add_pad (GST_ELEMENT (rtpmp4vdec), rtpmp4vdec->sinkpad);
}
static gboolean
gst_rtpmp4vdec_setcaps (GstPad * pad, GstCaps * caps)
{
GstStructure *structure;
GstRtpMP4VDec *rtpmp4vdec;
GstCaps *srccaps;
rtpmp4vdec = GST_RTP_MP4V_DEC (GST_OBJECT_PARENT (pad));
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "rate", &rtpmp4vdec->rate))
rtpmp4vdec->rate = 90000;
srccaps = gst_caps_new_simple ("video/mpeg",
"mpegversion", G_TYPE_INT, 4,
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
gst_pad_set_caps (rtpmp4vdec->srcpad, srccaps);
gst_caps_unref (srccaps);
return TRUE;
}
static GstFlowReturn
gst_rtpmp4vdec_chain (GstPad * pad, GstBuffer * buf)
{
GstRtpMP4VDec *rtpmp4vdec;
GstBuffer *outbuf;
GstFlowReturn ret;
rtpmp4vdec = GST_RTP_MP4V_DEC (gst_pad_get_parent (pad));
if (!gst_rtpbuffer_validate (buf))
goto bad_packet;
{
gint payload_len;
guint8 *payload;
guint32 timestamp;
payload_len = gst_rtpbuffer_get_payload_len (buf);
payload = gst_rtpbuffer_get_payload (buf);
timestamp = gst_rtpbuffer_get_timestamp (buf);
outbuf = gst_buffer_new_and_alloc (payload_len);
memcpy (GST_BUFFER_DATA (outbuf), payload, payload_len);
gst_adapter_push (rtpmp4vdec->adapter, outbuf);
/* if this was the last packet of the VOP, create and push a buffer */
if (gst_rtpbuffer_get_marker (buf)) {
guint avail;
avail = gst_adapter_available (rtpmp4vdec->adapter);
outbuf = gst_buffer_new_and_alloc (avail);
GST_BUFFER_MALLOCDATA (outbuf) =
gst_adapter_take (rtpmp4vdec->adapter, avail);
GST_BUFFER_DATA (outbuf) = GST_BUFFER_MALLOCDATA (outbuf);
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (rtpmp4vdec->srcpad));
GST_BUFFER_TIMESTAMP (outbuf) = timestamp * GST_SECOND / rtpmp4vdec->rate;
GST_DEBUG ("gst_rtpmp4vdec_chain: pushing buffer of size %d",
GST_BUFFER_SIZE (outbuf));
ret = gst_pad_push (rtpmp4vdec->srcpad, outbuf);
} else {
ret = GST_FLOW_OK;
}
gst_buffer_unref (buf);
}
gst_object_unref (rtpmp4vdec);
return ret;
bad_packet:
{
GST_DEBUG ("Packet did not validate");
gst_buffer_unref (buf);
gst_object_unref (rtpmp4vdec);
return GST_FLOW_ERROR;
}
}
static void
gst_rtpmp4vdec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRtpMP4VDec *rtpmp4vdec;
rtpmp4vdec = GST_RTP_MP4V_DEC (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_rtpmp4vdec_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstRtpMP4VDec *rtpmp4vdec;
rtpmp4vdec = GST_RTP_MP4V_DEC (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
gst_rtpmp4vdec_change_state (GstElement * element, GstStateChange transition)
{
GstRtpMP4VDec *rtpmp4vdec;
GstStateChangeReturn ret;
rtpmp4vdec = GST_RTP_MP4V_DEC (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
rtpmp4vdec->adapter = gst_adapter_new ();
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_adapter_clear (rtpmp4vdec->adapter);
rtpmp4vdec->rate = 90000;
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
g_object_unref (rtpmp4vdec->adapter);
rtpmp4vdec->adapter = NULL;
break;
default:
break;
}
return ret;
}
gboolean
gst_rtpmp4vdec_plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rtpmp4vdec",
GST_RANK_NONE, GST_TYPE_RTP_MP4V_DEC);
}

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/* Gnome-Streamer
* 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_RTP_MP4V_DEC_H__
#define __GST_RTP_MP4V_DEC_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
G_BEGIN_DECLS
#define GST_TYPE_RTP_MP4V_DEC \
(gst_rtpmp4vdec_get_type())
#define GST_RTP_MP4V_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_MP4V_DEC,GstRtpMP4VDec))
#define GST_RTP_MP4V_DEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_MP4V_DEC,GstRtpMP4VDec))
#define GST_IS_RTP_MP4V_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_MP4V_DEC))
#define GST_IS_RTP_MP4V_DEC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_MP4V_DEC))
typedef struct _GstRtpMP4VDec GstRtpMP4VDec;
typedef struct _GstRtpMP4VDecClass GstRtpMP4VDecClass;
struct _GstRtpMP4VDec
{
GstElement element;
GstPad *sinkpad;
GstPad *srcpad;
GstAdapter *adapter;
gint rate;
};
struct _GstRtpMP4VDecClass
{
GstElementClass parent_class;
};
gboolean gst_rtpmp4vdec_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_RTP_MP4V_DEC_H__ */

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/* 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
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <string.h>
#include <gst/rtp/gstrtpbuffer.h>
#include "gstrtpmp4venc.h"
/* elementfactory information */
static GstElementDetails gst_rtp_mp4venc_details = {
"RTP packet parser",
"Codec/Parser/Network",
"Encode MPEG4 video as RTP packets (RFC 3016)",
"Wim Taymans <wim@fluendo.com>"
};
/* RtpMP4VEnc signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
#define DEFAULT_MTU 1024
#define DEFAULT_PT 96
#define DEFAULT_SSRC 0
enum
{
PROP_0,
PROP_MTU,
PROP_PT,
PROP_SSRC
};
static GstStaticPadTemplate gst_rtpmp4venc_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/mpeg,"
"mpegversion=(int) 4," "systemstream=(boolean)false")
);
static GstStaticPadTemplate gst_rtpmp4venc_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp,"
"rate=(int) [1, MAX]," "profile-level-id=[1,MAX]"
/* "config=" */
)
);
static void gst_rtpmp4venc_class_init (GstRtpMP4VEncClass * klass);
static void gst_rtpmp4venc_base_init (GstRtpMP4VEncClass * klass);
static void gst_rtpmp4venc_init (GstRtpMP4VEnc * rtpmp4venc);
static gboolean gst_rtpmp4venc_setcaps (GstPad * pad, GstCaps * caps);
static GstFlowReturn gst_rtpmp4venc_chain (GstPad * pad, GstBuffer * buffer);
static void gst_rtpmp4venc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_rtpmp4venc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstStateChangeReturn gst_rtpmp4venc_change_state (GstElement * element,
GstStateChange transition);
static GstElementClass *parent_class = NULL;
static GType
gst_rtpmp4venc_get_type (void)
{
static GType rtpmp4venc_type = 0;
if (!rtpmp4venc_type) {
static const GTypeInfo rtpmp4venc_info = {
sizeof (GstRtpMP4VEncClass),
(GBaseInitFunc) gst_rtpmp4venc_base_init,
NULL,
(GClassInitFunc) gst_rtpmp4venc_class_init,
NULL,
NULL,
sizeof (GstRtpMP4VEnc),
0,
(GInstanceInitFunc) gst_rtpmp4venc_init,
};
rtpmp4venc_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstRtpMP4VEnc",
&rtpmp4venc_info, 0);
}
return rtpmp4venc_type;
}
static void
gst_rtpmp4venc_base_init (GstRtpMP4VEncClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpmp4venc_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpmp4venc_sink_template));
gst_element_class_set_details (element_class, &gst_rtp_mp4venc_details);
}
static void
gst_rtpmp4venc_class_init (GstRtpMP4VEncClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
gobject_class->set_property = gst_rtpmp4venc_set_property;
gobject_class->get_property = gst_rtpmp4venc_get_property;
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MTU,
g_param_spec_uint ("mtu", "MTU",
"Maximum size of one packet",
28, G_MAXUINT, DEFAULT_MTU, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PT,
g_param_spec_uint ("pt", "payload type",
"The payload type of the packets",
0, 0x80, DEFAULT_PT, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SSRC,
g_param_spec_uint ("ssrc", "SSRC",
"The SSRC of the packets",
0, G_MAXUINT, DEFAULT_SSRC, G_PARAM_READWRITE));
gstelement_class->change_state = gst_rtpmp4venc_change_state;
}
static void
gst_rtpmp4venc_init (GstRtpMP4VEnc * rtpmp4venc)
{
rtpmp4venc->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpmp4venc_src_template), "src");
gst_element_add_pad (GST_ELEMENT (rtpmp4venc), rtpmp4venc->srcpad);
rtpmp4venc->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpmp4venc_sink_template), "sink");
gst_pad_set_setcaps_function (rtpmp4venc->sinkpad, gst_rtpmp4venc_setcaps);
gst_pad_set_chain_function (rtpmp4venc->sinkpad, gst_rtpmp4venc_chain);
gst_element_add_pad (GST_ELEMENT (rtpmp4venc), rtpmp4venc->sinkpad);
rtpmp4venc->adapter = gst_adapter_new ();
rtpmp4venc->mtu = DEFAULT_MTU;
rtpmp4venc->pt = DEFAULT_PT;
rtpmp4venc->ssrc = DEFAULT_SSRC;
rtpmp4venc->rate = 90000;
rtpmp4venc->profile = 1;
}
static gboolean
gst_rtpmp4venc_setcaps (GstPad * pad, GstCaps * caps)
{
GstRtpMP4VEnc *rtpmp4venc;
GstCaps *srccaps;
rtpmp4venc = GST_RTP_MP4V_ENC (gst_pad_get_parent (pad));
srccaps = gst_caps_new_simple ("application/x-rtp",
"rate", G_TYPE_INT, rtpmp4venc->rate,
"profile-level-id", G_TYPE_INT, rtpmp4venc->profile, NULL);
gst_pad_set_caps (rtpmp4venc->srcpad, srccaps);
gst_caps_unref (srccaps);
gst_object_unref (rtpmp4venc);
return TRUE;
}
static GstFlowReturn
gst_rtpmp4venc_flush (GstRtpMP4VEnc * rtpmp4venc)
{
guint avail;
GstBuffer *outbuf;
GstFlowReturn ret;
guint16 frag_offset;
/* the data available in the adapter is either smaller
* than the MTU or bigger. In the case it is smaller, the complete
* adapter contents can be put in one packet. In the case the
* adapter has more than one MTU, we need to split the MP4V data
* over multiple packets. */
avail = gst_adapter_available (rtpmp4venc->adapter);
ret = GST_FLOW_OK;
frag_offset = 0;
while (avail > 0) {
guint towrite;
guint8 *payload;
guint8 *data;
guint payload_len;
guint packet_len;
/* this will be the total lenght of the packet */
packet_len = gst_rtpbuffer_calc_packet_len (avail, 0, 0);
/* fill one MTU or all available bytes */
towrite = MIN (packet_len, rtpmp4venc->mtu);
/* this is the payload length */
payload_len = gst_rtpbuffer_calc_payload_len (towrite, 0, 0);
/* create buffer to hold the payload */
outbuf = gst_rtpbuffer_new_allocate (payload_len, 0, 0);
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (rtpmp4venc->srcpad));
/* set timestamp */
if (GST_CLOCK_TIME_IS_VALID (rtpmp4venc->first_ts)) {
gst_rtpbuffer_set_timestamp (outbuf,
rtpmp4venc->first_ts * 90000 / GST_SECOND);
}
gst_rtpbuffer_set_payload_type (outbuf, rtpmp4venc->pt);
gst_rtpbuffer_set_seq (outbuf, rtpmp4venc->seqnum++);
payload = gst_rtpbuffer_get_payload (outbuf);
data = (guint8 *) gst_adapter_peek (rtpmp4venc->adapter, payload_len);
memcpy (payload, data, payload_len);
gst_adapter_flush (rtpmp4venc->adapter, payload_len);
avail -= payload_len;
frag_offset += payload_len;
gst_rtpbuffer_set_marker (outbuf, avail == 0);
GST_BUFFER_TIMESTAMP (outbuf) = rtpmp4venc->first_ts;
ret = gst_pad_push (rtpmp4venc->srcpad, outbuf);
}
return ret;
}
/* we expect buffers starting on startcodes.
*
* FIXME, need to flush the adapter if we receive non VOP
* packets.
*/
static GstFlowReturn
gst_rtpmp4venc_chain (GstPad * pad, GstBuffer * buffer)
{
GstRtpMP4VEnc *rtpmp4venc;
GstFlowReturn ret;
guint size, avail;
guint packet_len;
rtpmp4venc = GST_RTP_MP4V_ENC (gst_pad_get_parent (pad));
size = GST_BUFFER_SIZE (buffer);
avail = gst_adapter_available (rtpmp4venc->adapter);
/* get packet length of previous data and this new data */
packet_len = gst_rtpbuffer_calc_packet_len (avail + size, 0, 0);
/* if this buffer is going to overflow the packet, flush what we
* have. */
if (packet_len > rtpmp4venc->mtu) {
ret = gst_rtpmp4venc_flush (rtpmp4venc);
avail = 0;
}
gst_adapter_push (rtpmp4venc->adapter, buffer);
if (avail == 0) {
rtpmp4venc->first_ts = GST_BUFFER_TIMESTAMP (buffer);
}
gst_object_unref (rtpmp4venc);
ret = GST_FLOW_OK;
return ret;
}
static void
gst_rtpmp4venc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRtpMP4VEnc *rtpmp4venc;
rtpmp4venc = GST_RTP_MP4V_ENC (object);
switch (prop_id) {
case PROP_MTU:
rtpmp4venc->mtu = g_value_get_uint (value);
break;
case PROP_PT:
rtpmp4venc->pt = g_value_get_uint (value);
break;
case PROP_SSRC:
rtpmp4venc->ssrc = g_value_get_uint (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_rtpmp4venc_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstRtpMP4VEnc *rtpmp4venc;
rtpmp4venc = GST_RTP_MP4V_ENC (object);
switch (prop_id) {
case PROP_MTU:
g_value_set_uint (value, rtpmp4venc->mtu);
break;
case PROP_PT:
g_value_set_uint (value, rtpmp4venc->pt);
break;
case PROP_SSRC:
g_value_set_uint (value, rtpmp4venc->ssrc);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
gst_rtpmp4venc_change_state (GstElement * element, GstStateChange transition)
{
GstRtpMP4VEnc *rtpmp4venc;
GstStateChangeReturn ret;
rtpmp4venc = GST_RTP_MP4V_ENC (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
rtpmp4venc->seqnum = 0;
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_rtpmp4venc_plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rtpmp4venc",
GST_RANK_NONE, GST_TYPE_RTP_MP4V_ENC);
}

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/* Gnome-Streamer
* 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_RTP_MP4V_ENC_H__
#define __GST_RTP_MP4V_ENC_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
G_BEGIN_DECLS
#define GST_TYPE_RTP_MP4V_ENC \
(gst_rtpmp4venc_get_type())
#define GST_RTP_MP4V_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_MP4V_ENC,GstRtpMP4VEnc))
#define GST_RTP_MP4V_ENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_MP4V_ENC,GstRtpMP4VEnc))
#define GST_IS_RTP_MP4V_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_MP4V_ENC))
#define GST_IS_RTP_MP4V_ENC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_MP4V_ENC))
typedef struct _GstRtpMP4VEnc GstRtpMP4VEnc;
typedef struct _GstRtpMP4VEncClass GstRtpMP4VEncClass;
struct _GstRtpMP4VEnc
{
GstElement element;
GstPad *sinkpad;
GstPad *srcpad;
GstAdapter *adapter;
GstClockTime first_ts;
guint16 seqnum;
gint rate;
gint profile;
guint mtu;
guint pt;
guint ssrc;
};
struct _GstRtpMP4VEncClass
{
GstElementClass parent_class;
};
gboolean gst_rtpmp4venc_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_RTP_MP4V_ENC_H__ */

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/* 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
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <string.h>
#include <gst/rtp/gstrtpbuffer.h>
#include "gstrtpmp4venc.h"
/* elementfactory information */
static GstElementDetails gst_rtp_mp4venc_details = {
"RTP packet parser",
"Codec/Parser/Network",
"Encode MPEG4 video as RTP packets (RFC 3016)",
"Wim Taymans <wim@fluendo.com>"
};
/* RtpMP4VEnc signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
#define DEFAULT_MTU 1024
#define DEFAULT_PT 96
#define DEFAULT_SSRC 0
enum
{
PROP_0,
PROP_MTU,
PROP_PT,
PROP_SSRC
};
static GstStaticPadTemplate gst_rtpmp4venc_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/mpeg,"
"mpegversion=(int) 4," "systemstream=(boolean)false")
);
static GstStaticPadTemplate gst_rtpmp4venc_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp,"
"rate=(int) [1, MAX]," "profile-level-id=[1,MAX]"
/* "config=" */
)
);
static void gst_rtpmp4venc_class_init (GstRtpMP4VEncClass * klass);
static void gst_rtpmp4venc_base_init (GstRtpMP4VEncClass * klass);
static void gst_rtpmp4venc_init (GstRtpMP4VEnc * rtpmp4venc);
static gboolean gst_rtpmp4venc_setcaps (GstPad * pad, GstCaps * caps);
static GstFlowReturn gst_rtpmp4venc_chain (GstPad * pad, GstBuffer * buffer);
static void gst_rtpmp4venc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_rtpmp4venc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstStateChangeReturn gst_rtpmp4venc_change_state (GstElement * element,
GstStateChange transition);
static GstElementClass *parent_class = NULL;
static GType
gst_rtpmp4venc_get_type (void)
{
static GType rtpmp4venc_type = 0;
if (!rtpmp4venc_type) {
static const GTypeInfo rtpmp4venc_info = {
sizeof (GstRtpMP4VEncClass),
(GBaseInitFunc) gst_rtpmp4venc_base_init,
NULL,
(GClassInitFunc) gst_rtpmp4venc_class_init,
NULL,
NULL,
sizeof (GstRtpMP4VEnc),
0,
(GInstanceInitFunc) gst_rtpmp4venc_init,
};
rtpmp4venc_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstRtpMP4VEnc",
&rtpmp4venc_info, 0);
}
return rtpmp4venc_type;
}
static void
gst_rtpmp4venc_base_init (GstRtpMP4VEncClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpmp4venc_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpmp4venc_sink_template));
gst_element_class_set_details (element_class, &gst_rtp_mp4venc_details);
}
static void
gst_rtpmp4venc_class_init (GstRtpMP4VEncClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
gobject_class->set_property = gst_rtpmp4venc_set_property;
gobject_class->get_property = gst_rtpmp4venc_get_property;
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MTU,
g_param_spec_uint ("mtu", "MTU",
"Maximum size of one packet",
28, G_MAXUINT, DEFAULT_MTU, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PT,
g_param_spec_uint ("pt", "payload type",
"The payload type of the packets",
0, 0x80, DEFAULT_PT, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SSRC,
g_param_spec_uint ("ssrc", "SSRC",
"The SSRC of the packets",
0, G_MAXUINT, DEFAULT_SSRC, G_PARAM_READWRITE));
gstelement_class->change_state = gst_rtpmp4venc_change_state;
}
static void
gst_rtpmp4venc_init (GstRtpMP4VEnc * rtpmp4venc)
{
rtpmp4venc->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpmp4venc_src_template), "src");
gst_element_add_pad (GST_ELEMENT (rtpmp4venc), rtpmp4venc->srcpad);
rtpmp4venc->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpmp4venc_sink_template), "sink");
gst_pad_set_setcaps_function (rtpmp4venc->sinkpad, gst_rtpmp4venc_setcaps);
gst_pad_set_chain_function (rtpmp4venc->sinkpad, gst_rtpmp4venc_chain);
gst_element_add_pad (GST_ELEMENT (rtpmp4venc), rtpmp4venc->sinkpad);
rtpmp4venc->adapter = gst_adapter_new ();
rtpmp4venc->mtu = DEFAULT_MTU;
rtpmp4venc->pt = DEFAULT_PT;
rtpmp4venc->ssrc = DEFAULT_SSRC;
rtpmp4venc->rate = 90000;
rtpmp4venc->profile = 1;
}
static gboolean
gst_rtpmp4venc_setcaps (GstPad * pad, GstCaps * caps)
{
GstRtpMP4VEnc *rtpmp4venc;
GstCaps *srccaps;
rtpmp4venc = GST_RTP_MP4V_ENC (gst_pad_get_parent (pad));
srccaps = gst_caps_new_simple ("application/x-rtp",
"rate", G_TYPE_INT, rtpmp4venc->rate,
"profile-level-id", G_TYPE_INT, rtpmp4venc->profile, NULL);
gst_pad_set_caps (rtpmp4venc->srcpad, srccaps);
gst_caps_unref (srccaps);
gst_object_unref (rtpmp4venc);
return TRUE;
}
static GstFlowReturn
gst_rtpmp4venc_flush (GstRtpMP4VEnc * rtpmp4venc)
{
guint avail;
GstBuffer *outbuf;
GstFlowReturn ret;
guint16 frag_offset;
/* the data available in the adapter is either smaller
* than the MTU or bigger. In the case it is smaller, the complete
* adapter contents can be put in one packet. In the case the
* adapter has more than one MTU, we need to split the MP4V data
* over multiple packets. */
avail = gst_adapter_available (rtpmp4venc->adapter);
ret = GST_FLOW_OK;
frag_offset = 0;
while (avail > 0) {
guint towrite;
guint8 *payload;
guint8 *data;
guint payload_len;
guint packet_len;
/* this will be the total lenght of the packet */
packet_len = gst_rtpbuffer_calc_packet_len (avail, 0, 0);
/* fill one MTU or all available bytes */
towrite = MIN (packet_len, rtpmp4venc->mtu);
/* this is the payload length */
payload_len = gst_rtpbuffer_calc_payload_len (towrite, 0, 0);
/* create buffer to hold the payload */
outbuf = gst_rtpbuffer_new_allocate (payload_len, 0, 0);
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (rtpmp4venc->srcpad));
/* set timestamp */
if (GST_CLOCK_TIME_IS_VALID (rtpmp4venc->first_ts)) {
gst_rtpbuffer_set_timestamp (outbuf,
rtpmp4venc->first_ts * 90000 / GST_SECOND);
}
gst_rtpbuffer_set_payload_type (outbuf, rtpmp4venc->pt);
gst_rtpbuffer_set_seq (outbuf, rtpmp4venc->seqnum++);
payload = gst_rtpbuffer_get_payload (outbuf);
data = (guint8 *) gst_adapter_peek (rtpmp4venc->adapter, payload_len);
memcpy (payload, data, payload_len);
gst_adapter_flush (rtpmp4venc->adapter, payload_len);
avail -= payload_len;
frag_offset += payload_len;
gst_rtpbuffer_set_marker (outbuf, avail == 0);
GST_BUFFER_TIMESTAMP (outbuf) = rtpmp4venc->first_ts;
ret = gst_pad_push (rtpmp4venc->srcpad, outbuf);
}
return ret;
}
/* we expect buffers starting on startcodes.
*
* FIXME, need to flush the adapter if we receive non VOP
* packets.
*/
static GstFlowReturn
gst_rtpmp4venc_chain (GstPad * pad, GstBuffer * buffer)
{
GstRtpMP4VEnc *rtpmp4venc;
GstFlowReturn ret;
guint size, avail;
guint packet_len;
rtpmp4venc = GST_RTP_MP4V_ENC (gst_pad_get_parent (pad));
size = GST_BUFFER_SIZE (buffer);
avail = gst_adapter_available (rtpmp4venc->adapter);
/* get packet length of previous data and this new data */
packet_len = gst_rtpbuffer_calc_packet_len (avail + size, 0, 0);
/* if this buffer is going to overflow the packet, flush what we
* have. */
if (packet_len > rtpmp4venc->mtu) {
ret = gst_rtpmp4venc_flush (rtpmp4venc);
avail = 0;
}
gst_adapter_push (rtpmp4venc->adapter, buffer);
if (avail == 0) {
rtpmp4venc->first_ts = GST_BUFFER_TIMESTAMP (buffer);
}
gst_object_unref (rtpmp4venc);
ret = GST_FLOW_OK;
return ret;
}
static void
gst_rtpmp4venc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRtpMP4VEnc *rtpmp4venc;
rtpmp4venc = GST_RTP_MP4V_ENC (object);
switch (prop_id) {
case PROP_MTU:
rtpmp4venc->mtu = g_value_get_uint (value);
break;
case PROP_PT:
rtpmp4venc->pt = g_value_get_uint (value);
break;
case PROP_SSRC:
rtpmp4venc->ssrc = g_value_get_uint (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_rtpmp4venc_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstRtpMP4VEnc *rtpmp4venc;
rtpmp4venc = GST_RTP_MP4V_ENC (object);
switch (prop_id) {
case PROP_MTU:
g_value_set_uint (value, rtpmp4venc->mtu);
break;
case PROP_PT:
g_value_set_uint (value, rtpmp4venc->pt);
break;
case PROP_SSRC:
g_value_set_uint (value, rtpmp4venc->ssrc);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
gst_rtpmp4venc_change_state (GstElement * element, GstStateChange transition)
{
GstRtpMP4VEnc *rtpmp4venc;
GstStateChangeReturn ret;
rtpmp4venc = GST_RTP_MP4V_ENC (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
rtpmp4venc->seqnum = 0;
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_rtpmp4venc_plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rtpmp4venc",
GST_RANK_NONE, GST_TYPE_RTP_MP4V_ENC);
}

70
gst/rtp/gstrtpmp4vpay.h Normal file
View file

@ -0,0 +1,70 @@
/* Gnome-Streamer
* 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_RTP_MP4V_ENC_H__
#define __GST_RTP_MP4V_ENC_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
G_BEGIN_DECLS
#define GST_TYPE_RTP_MP4V_ENC \
(gst_rtpmp4venc_get_type())
#define GST_RTP_MP4V_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_MP4V_ENC,GstRtpMP4VEnc))
#define GST_RTP_MP4V_ENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_MP4V_ENC,GstRtpMP4VEnc))
#define GST_IS_RTP_MP4V_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_MP4V_ENC))
#define GST_IS_RTP_MP4V_ENC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_MP4V_ENC))
typedef struct _GstRtpMP4VEnc GstRtpMP4VEnc;
typedef struct _GstRtpMP4VEncClass GstRtpMP4VEncClass;
struct _GstRtpMP4VEnc
{
GstElement element;
GstPad *sinkpad;
GstPad *srcpad;
GstAdapter *adapter;
GstClockTime first_ts;
guint16 seqnum;
gint rate;
gint profile;
guint mtu;
guint pt;
guint ssrc;
};
struct _GstRtpMP4VEncClass
{
GstElementClass parent_class;
};
gboolean gst_rtpmp4venc_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_RTP_MP4V_ENC_H__ */

13
gst/rtp/gstrtpmpadec.c
View file

@ -25,7 +25,7 @@
static GstElementDetails gst_rtp_mpadec_details = {
"RTP packet parser",
"Codec/Parser/Network",
"Extracts MPEG audio from RTP packets",
"Extracts MPEG audio from RTP packets (RFC 2038)",
"Wim Taymans <wim@fluendo.com>"
};
@ -171,7 +171,14 @@ gst_rtpmpadec_chain (GstPad * pad, GstBuffer * buf)
frag_offset = (payload[2] << 8) | payload[3];
/* strip off header */
/* strip off header
*
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | MBZ | Frag_offset |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
payload_len -= 4;
payload += 4;
@ -188,6 +195,8 @@ gst_rtpmpadec_chain (GstPad * pad, GstBuffer * buf)
gst_buffer_unref (buf);
/* FIXME, we can push half mpeg frames when they are split over multiple
* RTP packets */
ret = gst_pad_push (rtpmpadec->srcpad, outbuf);
}

13
gst/rtp/gstrtpmpadepay.c
View file

@ -25,7 +25,7 @@
static GstElementDetails gst_rtp_mpadec_details = {
"RTP packet parser",
"Codec/Parser/Network",
"Extracts MPEG audio from RTP packets",
"Extracts MPEG audio from RTP packets (RFC 2038)",
"Wim Taymans <wim@fluendo.com>"
};
@ -171,7 +171,14 @@ gst_rtpmpadec_chain (GstPad * pad, GstBuffer * buf)
frag_offset = (payload[2] << 8) | payload[3];
/* strip off header */
/* strip off header
*
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | MBZ | Frag_offset |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
payload_len -= 4;
payload += 4;
@ -188,6 +195,8 @@ gst_rtpmpadec_chain (GstPad * pad, GstBuffer * buf)
gst_buffer_unref (buf);
/* FIXME, we can push half mpeg frames when they are split over multiple
* RTP packets */
ret = gst_pad_push (rtpmpadec->srcpad, outbuf);
}

18
gst/rtp/gstrtpmpaenc.c
View file

@ -26,7 +26,7 @@
static GstElementDetails gst_rtp_mpaenc_details = {
"RTP packet parser",
"Codec/Parser/Network",
"Encode MPEG audio as RTP packets",
"Encode MPEG audio as RTP packets (RFC 2038)",
"Wim Taymans <wim@fluendo.com>"
};
@ -200,6 +200,13 @@ gst_rtpmpaenc_flush (GstRtpMPAEnc * rtpmpaenc)
gst_rtpbuffer_set_payload_type (outbuf, GST_RTP_PAYLOAD_MPA);
gst_rtpbuffer_set_seq (outbuf, rtpmpaenc->seqnum++);
/*
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | MBZ | Frag_offset |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
payload = gst_rtpbuffer_get_payload (outbuf);
payload[0] = 0;
payload[1] = 0;
@ -210,12 +217,15 @@ gst_rtpmpaenc_flush (GstRtpMPAEnc * rtpmpaenc)
memcpy (&payload[4], data, payload_len);
gst_adapter_flush (rtpmpaenc->adapter, payload_len);
avail -= payload_len;
frag_offset += payload_len;
if (avail == 0)
gst_rtpbuffer_set_marker (outbuf, TRUE);
GST_BUFFER_TIMESTAMP (outbuf) = rtpmpaenc->first_ts;
ret = gst_pad_push (rtpmpaenc->srcpad, outbuf);
avail -= payload_len;
frag_offset += payload_len;
}
return ret;

18
gst/rtp/gstrtpmpapay.c
View file

@ -26,7 +26,7 @@
static GstElementDetails gst_rtp_mpaenc_details = {
"RTP packet parser",
"Codec/Parser/Network",
"Encode MPEG audio as RTP packets",
"Encode MPEG audio as RTP packets (RFC 2038)",
"Wim Taymans <wim@fluendo.com>"
};
@ -200,6 +200,13 @@ gst_rtpmpaenc_flush (GstRtpMPAEnc * rtpmpaenc)
gst_rtpbuffer_set_payload_type (outbuf, GST_RTP_PAYLOAD_MPA);
gst_rtpbuffer_set_seq (outbuf, rtpmpaenc->seqnum++);
/*
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | MBZ | Frag_offset |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
payload = gst_rtpbuffer_get_payload (outbuf);
payload[0] = 0;
payload[1] = 0;
@ -210,12 +217,15 @@ gst_rtpmpaenc_flush (GstRtpMPAEnc * rtpmpaenc)
memcpy (&payload[4], data, payload_len);
gst_adapter_flush (rtpmpaenc->adapter, payload_len);
avail -= payload_len;
frag_offset += payload_len;
if (avail == 0)
gst_rtpbuffer_set_marker (outbuf, TRUE);
GST_BUFFER_TIMESTAMP (outbuf) = rtpmpaenc->first_ts;
ret = gst_pad_push (rtpmpaenc->srcpad, outbuf);
avail -= payload_len;
frag_offset += payload_len;
}
return ret;