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gst/rtp/: Added an H263 depayloader. Fixes #369392.

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Original commit message from CVS:
* gst/rtp/Makefile.am:
* gst/rtp/gstrtp.c: (plugin_init):
* gst/rtp/gstrtph263depay.c: (gst_rtp_h263_depay_base_init),
(gst_rtp_h263_depay_class_init), (gst_rtp_h263_depay_init),
(gst_rtp_h263_depay_finalize), (gst_rtp_h263_depay_setcaps),
(gst_rtp_h263_depay_process), (gst_rtp_h263_depay_set_property),
(gst_rtp_h263_depay_get_property),
(gst_rtp_h263_depay_change_state),
(gst_rtp_h263_depay_plugin_init):
* gst/rtp/gstrtph263depay.h:
Added an H263 depayloader. Fixes #369392.
* gst/rtp/gstrtph263pdepay.c: (gst_rtp_h263p_depay_setcaps),
(gst_rtp_h263p_depay_process):
* gst/rtp/gstrtph263ppay.c: (gst_fragmentation_mode_get_type),
(gst_rtp_h263p_pay_class_init), (gst_rtp_h263p_pay_flush):
Make the H263+ pay/depayloader support H263-1998 and H263-2000
payloads.
Also alow plain H263 on the h263p payloaders. Fixes #465040.
This commit is contained in:
Wim Taymans 2007-08-20 16:52:03 +00:00
parent 45ac408d0a
commit 7d92376d3b
8 changed files with 568 additions and 26 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

22
ChangeLog
View file

@ -1,3 +1,25 @@
2007-08-20 Wim Taymans <wim.taymans@gmail.com>
* gst/rtp/Makefile.am:
* gst/rtp/gstrtp.c: (plugin_init):
* gst/rtp/gstrtph263depay.c: (gst_rtp_h263_depay_base_init),
(gst_rtp_h263_depay_class_init), (gst_rtp_h263_depay_init),
(gst_rtp_h263_depay_finalize), (gst_rtp_h263_depay_setcaps),
(gst_rtp_h263_depay_process), (gst_rtp_h263_depay_set_property),
(gst_rtp_h263_depay_get_property),
(gst_rtp_h263_depay_change_state),
(gst_rtp_h263_depay_plugin_init):
* gst/rtp/gstrtph263depay.h:
Added an H263 depayloader. Fixes #369392.
* gst/rtp/gstrtph263pdepay.c: (gst_rtp_h263p_depay_setcaps),
(gst_rtp_h263p_depay_process):
* gst/rtp/gstrtph263ppay.c: (gst_fragmentation_mode_get_type),
(gst_rtp_h263p_pay_class_init), (gst_rtp_h263p_pay_flush):
Make the H263+ pay/depayloader support H263-1998 and H263-2000
payloads.
Also alow plain H263 on the h263p payloaders. Fixes #465040.
2007-08-19 Sebastian Dröge <slomo@circular-chaos.org>
* gst/audiofx/audiochebyshevfreqband.c:

2
common

@ -1 +1 @@
Subproject commit b3fe2a25c1cd0f4b021795d0db7330aeb338da7c
Subproject commit 9c7f1a63dfed1b2770b5fdaa16e0ae114b2177cf

2
gst/rtp/Makefile.am
View file

@ -20,6 +20,7 @@ libgstrtp_la_SOURCES = \
gstrtpamrpay.c \
gstrtph263pdepay.c \
gstrtph263ppay.c \
gstrtph263depay.c \
gstrtph263pay.c \
gstrtph264depay.c \
gstrtph264pay.c \
@ -74,6 +75,7 @@ noinst_HEADERS = \
gstrtpmpvdepay.h \
gstrtph263pdepay.h \
gstrtph263ppay.h \
gstrtph263depay.h \
gstrtph263pay.h \
gstrtph264depay.h \
gstrtph264pay.h \

4
gst/rtp/gstrtp.c
View file

@ -38,6 +38,7 @@
#include "gstrtpmpvdepay.h"
#include "gstrtph263pdepay.h"
#include "gstrtph263ppay.h"
#include "gstrtph263depay.h"
#include "gstrtph263pay.h"
#include "gstrtph264depay.h"
#include "gstrtph264pay.h"
@ -113,6 +114,9 @@ plugin_init (GstPlugin * plugin)
if (!gst_rtp_h263p_depay_plugin_init (plugin))
return FALSE;
if (!gst_rtp_h263_depay_plugin_init (plugin))
return FALSE;
if (!gst_rtp_h263_pay_plugin_init (plugin))
return FALSE;

357
gst/rtp/gstrtph263depay.c Normal file
View file

@ -0,0 +1,357 @@
/* GStreamer
*
* Copyright 2007 Nokia Corporation
* Copyright 2007 Collabora Ltd,
* @author: Philippe Kalaf <philippe.kalaf@collabora.co.uk>
*
* 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.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <string.h>
#include <gst/rtp/gstrtpbuffer.h>
#include "gstrtph263depay.h"
/* elementfactory information */
static const GstElementDetails gst_rtp_h263depay_details =
GST_ELEMENT_DETAILS ("RTP H263 packet depayloader",
"Codec/Depayloader/Network",
"Extracts H263 video from RTP packets (RFC 2190)",
"Philippe Kalaf <philippe.kalaf@collabora.co.uk>");
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0
};
#define GST_RFC2190A_HEADER_LEN 4
#define GST_RFC2190B_HEADER_LEN 8
#define GST_RFC2190C_HEADER_LEN 12
static GstStaticPadTemplate gst_rtp_h263_depay_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-h263, "
"variant = (string) \"itu\", " "h263version = (string) \"h263\"")
);
static GstStaticPadTemplate gst_rtp_h263_depay_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp, "
"media = (string) \"video\", "
"payload = (int) " GST_RTP_PAYLOAD_H263_STRING ", "
"clock-rate = (int) 90000, " "encoding-name = (string) \"H263\"; "
"application/x-rtp, "
"media = (string) \"video\", "
"payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", "
"clock-rate = (int) 90000, " "encoding-name = (string) \"H263\"")
);
GST_BOILERPLATE (GstRtpH263Depay, gst_rtp_h263_depay, GstBaseRTPDepayload,
GST_TYPE_BASE_RTP_DEPAYLOAD);
static void gst_rtp_h263_depay_finalize (GObject * object);
static void gst_rtp_h263_depay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_rtp_h263_depay_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstStateChangeReturn gst_rtp_h263_depay_change_state (GstElement *
element, GstStateChange transition);
static GstBuffer *gst_rtp_h263_depay_process (GstBaseRTPDepayload * depayload,
GstBuffer * buf);
gboolean gst_rtp_h263_depay_setcaps (GstBaseRTPDepayload * filter,
GstCaps * caps);
static void
gst_rtp_h263_depay_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtp_h263_depay_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtp_h263_depay_sink_template));
gst_element_class_set_details (element_class, &gst_rtp_h263depay_details);
}
static void
gst_rtp_h263_depay_class_init (GstRtpH263DepayClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseRTPDepayloadClass *gstbasertpdepayload_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gstbasertpdepayload_class = (GstBaseRTPDepayloadClass *) klass;
parent_class = g_type_class_peek_parent (klass);
gstbasertpdepayload_class->process = gst_rtp_h263_depay_process;
gstbasertpdepayload_class->set_caps = gst_rtp_h263_depay_setcaps;
gobject_class->finalize = gst_rtp_h263_depay_finalize;
gobject_class->set_property = gst_rtp_h263_depay_set_property;
gobject_class->get_property = gst_rtp_h263_depay_get_property;
gstelement_class->change_state = gst_rtp_h263_depay_change_state;
}
static void
gst_rtp_h263_depay_init (GstRtpH263Depay * rtph263depay,
GstRtpH263DepayClass * klass)
{
rtph263depay->adapter = gst_adapter_new ();
}
static void
gst_rtp_h263_depay_finalize (GObject * object)
{
GstRtpH263Depay *rtph263depay;
rtph263depay = GST_RTP_H263_DEPAY (object);
g_object_unref (rtph263depay->adapter);
rtph263depay->adapter = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
gboolean
gst_rtp_h263_depay_setcaps (GstBaseRTPDepayload * filter, GstCaps * caps)
{
GstCaps *srccaps;
GstStructure *structure = gst_caps_get_structure (caps, 0);
gint clock_rate = 90000; /* default */
gst_structure_get_int (structure, "clock-rate", &clock_rate);
filter->clock_rate = clock_rate;
srccaps = gst_caps_new_simple ("video/x-h263",
"variant", G_TYPE_STRING, "itu",
"h263version", G_TYPE_STRING, "h263", NULL);
gst_pad_set_caps (GST_BASE_RTP_DEPAYLOAD_SRCPAD (filter), srccaps);
gst_caps_unref (srccaps);
return TRUE;
}
static GstBuffer *
gst_rtp_h263_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
{
GstRtpH263Depay *rtph263depay;
GstBuffer *outbuf;
rtph263depay = GST_RTP_H263_DEPAY (depayload);
if (!gst_rtp_buffer_validate (buf))
goto bad_packet;
{
gint payload_len;
guint8 *payload;
guint32 timestamp;
guint header_len;
gboolean F, P, M;
payload_len = gst_rtp_buffer_get_payload_len (buf);
payload = gst_rtp_buffer_get_payload (buf);
M = gst_rtp_buffer_get_marker (buf);
/* Let's see what mode we are using */
F = (payload[0] & 0x01) == 0x01;
P = (payload[0] & 0x02) == 0x02;
if (F == 0) {
/* F == 0 and P == 0 or 1
* mode A */
header_len = GST_RFC2190A_HEADER_LEN;
/* 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
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* |F|P|SBIT |EBIT | SRC |I|U|S|A|R |DBQ| TRB | TR |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
} else if (P == 0) {
/* F == 1 and P == 0
* mode B */
header_len = GST_RFC2190B_HEADER_LEN;
/* 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
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* |F|P|SBIT |EBIT | SRC | QUANT | GOBN | MBA |R |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* |I|U|S|A| HMV1 | VMV1 | HMV2 | VMV2 |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
} else {
/* F == 1 and P == 1
* mode C */
header_len = GST_RFC2190C_HEADER_LEN;
/* 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
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* |F|P|SBIT |EBIT | SRC | QUANT | GOBN | MBA |R |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* |I|U|S|A| HMV1 | VMV1 | HMV2 | VMV2 |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | RR |DBQ| TRB | TR |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
}
payload += header_len;
payload_len -= header_len;
timestamp = gst_rtp_buffer_get_timestamp (buf);
/* FIXME at this point, we just drop the header and don't check for any missing
* buffers, proper behaviour is to recreate the appropriate information in the
* bitstream if it has been lost */
if (M) {
/* frame is completed: append to previous, push it out */
guint len, padlen;
guint avail;
avail = gst_adapter_available (rtph263depay->adapter);
len = avail + payload_len;
padlen = (len % 4) + 4;
outbuf = gst_buffer_new_and_alloc (len + padlen);
memset (GST_BUFFER_DATA (outbuf) + len, 0, padlen);
GST_BUFFER_SIZE (outbuf) = len;
/* prepend previous data */
if (avail > 0) {
gst_adapter_copy (rtph263depay->adapter, GST_BUFFER_DATA (outbuf), 0,
avail);
gst_adapter_flush (rtph263depay->adapter, avail);
}
memcpy (GST_BUFFER_DATA (outbuf) + avail, payload, payload_len);
return outbuf;
} else {
/* frame not completed: store in adapter */
outbuf = gst_buffer_new_and_alloc (payload_len);
memcpy (GST_BUFFER_DATA (outbuf), payload, payload_len);
gst_adapter_push (rtph263depay->adapter, outbuf);
}
}
return NULL;
bad_packet:
{
GST_ELEMENT_WARNING (rtph263depay, STREAM, DECODE,
("Packet did not validate"), (NULL));
return NULL;
}
}
static void
gst_rtp_h263_depay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRtpH263Depay *rtph263depay;
rtph263depay = GST_RTP_H263_DEPAY (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_rtp_h263_depay_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstRtpH263Depay *rtph263depay;
rtph263depay = GST_RTP_H263_DEPAY (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
gst_rtp_h263_depay_change_state (GstElement * element,
GstStateChange transition)
{
GstRtpH263Depay *rtph263depay;
GstStateChangeReturn ret;
rtph263depay = GST_RTP_H263_DEPAY (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_adapter_clear (rtph263depay->adapter);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
gboolean
gst_rtp_h263_depay_plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rtph263depay",
GST_RANK_MARGINAL, GST_TYPE_RTP_H263_DEPAY);
}

60
gst/rtp/gstrtph263depay.h Normal file
View file

@ -0,0 +1,60 @@
/* 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_RTP_H263_DEPAY_H__
#define __GST_RTP_H263_DEPAY_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
#include <gst/rtp/gstbasertpdepayload.h>
G_BEGIN_DECLS
#define GST_TYPE_RTP_H263_DEPAY \
(gst_rtp_h263_depay_get_type())
#define GST_RTP_H263_DEPAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_H263_DEPAY,GstRtpH263Depay))
#define GST_RTP_H263_DEPAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_H263_DEPAY,GstRtpH263DepayClass))
#define GST_IS_RTP_H263_DEPAY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_H263_DEPAY))
#define GST_IS_RTP_H263_DEPAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_H263_DEPAY))
typedef struct _GstRtpH263Depay GstRtpH263Depay;
typedef struct _GstRtpH263DepayClass GstRtpH263DepayClass;
struct _GstRtpH263Depay
{
GstBaseRTPDepayload depayload;
GstAdapter *adapter;
};
struct _GstRtpH263DepayClass
{
GstBaseRTPDepayloadClass parent_class;
};
gboolean gst_rtp_h263_depay_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_RTP_H263_DEPAY_H__ */

123
gst/rtp/gstrtph263pdepay.c
View file

@ -30,7 +30,7 @@
static const GstElementDetails gst_rtp_h263pdepay_details =
GST_ELEMENT_DETAILS ("RTP packet depayloader",
"Codec/Depayloader/Network",
"Extracts H263+ video from RTP packets (RFC 2429)",
"Extracts H263/+/++ video from RTP packets (RFC 4629)",
"Wim Taymans <wim@fluendo.com>");
/* RtpH263PDepay signals and args */
@ -50,18 +50,50 @@ static GstStaticPadTemplate gst_rtp_h263p_depay_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-h263, "
"variant = (string) \"itu\", " "h263version = (string) \"h263p\"")
GST_STATIC_CAPS ("video/x-h263, " "variant = (string) \"itu\" ")
);
static GstStaticPadTemplate gst_rtp_h263p_depay_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp, "
"media = (string) \"video\", "
"payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", "
"clock-rate = (int) 90000, " "encoding-name = (string) \"H263-1998\"")
"clock-rate = (int) 90000, " "encoding-name = (string) \"H263-1998\"; "
/* optional params */
/* NOTE all optional SDP params must be strings in the caps */
/*
"sqcif = (string) [1, 32], "
"qcif = (string) [1, 32], "
"cif = (string) [1, 32], "
"cif4 = (string) [1, 32], "
"cif16 = (string) [1, 32], "
"custom = (string) ANY, "
"f = (string) {0, 1},"
"i = (string) {0, 1},"
"j = (string) {0, 1},"
"t = (string) {0, 1},"
"k = (string) {1, 2, 3, 4},"
"n = (string) {1, 2, 3, 4},"
"p = (string) ANY,"
"par = (string) ANY, "
"cpcf = (string) ANY, "
"bpp = (string) [0, 65536], "
"hrd = (string) {0, 1}; "
*/
"application/x-rtp, "
"media = (string) \"video\", "
"payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", "
"clock-rate = (int) 90000, " "encoding-name = (string) \"H263-2000\" "
/* optional params */
/* NOTE all optional SDP params must be strings in the caps */
/*
"profile = (string) [0, 10], "
"level = (string) {10, 20, 30, 40, 45, 50, 60, 70}, "
"interlace = (string) {0, 1};"
*/
)
);
GST_BOILERPLATE (GstRtpH263PDepay, gst_rtp_h263p_depay, GstBaseRTPDepayload,
@ -142,20 +174,84 @@ gst_rtp_h263p_depay_finalize (GObject * object)
gboolean
gst_rtp_h263p_depay_setcaps (GstBaseRTPDepayload * filter, GstCaps * caps)
{
GstCaps *srccaps;
GstCaps *srccaps = NULL;
GstStructure *structure = gst_caps_get_structure (caps, 0);
gint clock_rate = 90000; /* default */
const gchar *encoding_name = NULL;
gst_structure_get_int (structure, "clock-rate", &clock_rate);
filter->clock_rate = clock_rate;
srccaps = gst_caps_new_simple ("video/x-h263",
"variant", G_TYPE_STRING, "itu",
"h263version", G_TYPE_STRING, "h263p", NULL);
encoding_name = gst_structure_get_string (structure, "encoding-name");
if (encoding_name == NULL)
goto no_encoding_name;
if (g_ascii_strcasecmp (encoding_name, "H263-2000") == 0) {
/* always h263++ */
srccaps = gst_caps_new_simple ("video/x-h263",
"variant", G_TYPE_STRING, "itu",
"h263version", G_TYPE_STRING, "h263pp", NULL);
} else if (g_ascii_strcasecmp (encoding_name, "H263-1998") == 0) {
/* this can be H263 or H263+ depending on defined appendixes in the optional
* SDP params */
const gchar *F, *I, *J, *T, *K, *N, *P;
gboolean is_h263p = FALSE;
F = gst_structure_get_string (structure, "f");
if (F)
if (g_strcasecmp (F, "1") == 0)
is_h263p = TRUE;
I = gst_structure_get_string (structure, "i");
if (I)
if (g_strcasecmp (I, "1") == 0)
is_h263p = TRUE;
J = gst_structure_get_string (structure, "j");
if (J)
if (g_strcasecmp (J, "1") == 0)
is_h263p = TRUE;
T = gst_structure_get_string (structure, "t");
if (T)
if (g_strcasecmp (T, "1") == 0)
is_h263p = TRUE;
K = gst_structure_get_string (structure, "k");
if (K)
is_h263p = TRUE;
N = gst_structure_get_string (structure, "n");
if (N)
is_h263p = TRUE;
P = gst_structure_get_string (structure, "p");
if (P)
is_h263p = TRUE;
if (is_h263p) {
srccaps = gst_caps_new_simple ("video/x-h263",
"variant", G_TYPE_STRING, "itu",
"h263version", G_TYPE_STRING, "h263p", NULL);
} else {
srccaps = gst_caps_new_simple ("video/x-h263",
"variant", G_TYPE_STRING, "itu",
"h263version", G_TYPE_STRING, "h263", NULL);
}
}
if (!srccaps)
goto no_caps;
gst_pad_set_caps (GST_BASE_RTP_DEPAYLOAD_SRCPAD (filter), srccaps);
gst_caps_unref (srccaps);
return TRUE;
/* ERRORS */
no_encoding_name:
{
GST_ERROR_OBJECT (filter, "no encoding-name");
return FALSE;
}
no_caps:
{
GST_ERROR_OBJECT (filter, "invalid encoding-name");
return FALSE;
}
}
static GstBuffer *
@ -220,7 +316,8 @@ gst_rtp_h263p_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
goto waiting_start;
/* FIXME do not ignore the VRC header (See RFC 2429 section 4.2) */
/* strip off header */
/* FIXME actually use the RTP picture header when it is lost in the network */
/* for now strip off header */
payload += header_len;
payload_len -= header_len;
@ -247,12 +344,6 @@ gst_rtp_h263p_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
}
memcpy (GST_BUFFER_DATA (outbuf) + avail, payload, payload_len);
GST_BUFFER_TIMESTAMP (outbuf) =
timestamp * GST_SECOND / depayload->clock_rate;
gst_buffer_set_caps (outbuf,
(GstCaps *) gst_pad_get_pad_template_caps (depayload->srcpad));
return outbuf;
} else {

24
gst/rtp/gstrtph263ppay.c
View file

@ -61,25 +61,28 @@ GST_DEBUG_CATEGORY_STATIC (rtph263ppay_debug);
static const GstElementDetails gst_rtp_h263ppay_details =
GST_ELEMENT_DETAILS ("RTP packet payloader",
"Codec/Payloader/Network",
"Payload-encodes H263+ video in RTP packets (RFC 2429)",
"Payload-encodes H263/+/++ video in RTP packets (RFC 4629)",
"Wim Taymans <wim@fluendo.com>");
static GstStaticPadTemplate gst_rtp_h263p_pay_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-h263, "
"variant = (string) \"itu\", " "h263version = (string) \"h263p\"")
GST_STATIC_CAPS ("video/x-h263, " "variant = (string) \"itu\" ")
);
static GstStaticPadTemplate gst_rtp_h263p_pay_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp, "
"media = (string) \"video\", "
"payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", "
"clock-rate = (int) 90000, " "encoding-name = (string) \"H263-1998\"")
"clock-rate = (int) 90000, " "encoding-name = (string) \"H263-1998\"; "
"application/x-rtp, "
"media = (string) \"video\", "
"payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", "
"clock-rate = (int) 90000, " "encoding-name = (string) \"H263-2000\"")
);
static void gst_rtp_h263p_pay_class_init (GstRtpH263PPayClass * klass);
@ -165,7 +168,7 @@ gst_rtp_h263p_pay_class_init (GstRtpH263PPayClass * klass)
DEFAULT_FRAGMENTATION_MODE, G_PARAM_READWRITE));
GST_DEBUG_CATEGORY_INIT (rtph263ppay_debug, "rtph263ppay",
0, "rtph263ppay (RFC 2429)");
0, "rtph263ppay (RFC 4629)");
}
@ -250,16 +253,16 @@ gst_rtp_h263p_pay_flush (GstRtpH263PPay * rtph263ppay)
return GST_FLOW_OK;
fragmented = FALSE;
/* This algorithm assumes the H263+ encoder sends complete frames in each
/* This algorithm assumes the H263/+/++ encoder sends complete frames in each
* buffer */
/* With Fragmentation Mode at GST_FRAGMENTATION_MODE_NORMAL:
* This algorithm implements the Follow-on packets method for packetization.
* This assumes low packet loss network.
* With Fragmentation Mode at GST_FRAGMENTATION_MODE_SYNC:
* This algorithm separates large frames at synchronisation points (Segments)
* (See RFC 2429 section 6). It would be interesting to have a property such as network
* (See RFC 4629 section 6). It would be interesting to have a property such as network
* quality to select between both packetization methods */
/* TODO Add VRC supprt (See RFC 2429 section 4.2) */
/* TODO Add VRC supprt (See RFC 4629 section 5.2) */
while (avail > 0) {
guint towrite;
@ -278,12 +281,15 @@ gst_rtp_h263p_pay_flush (GstRtpH263PPay * rtph263ppay)
parse_data = gst_adapter_peek (rtph263ppay->adapter, avail);
/* Check if we have a gob or eos , eossbs */
/* FIXME EOS and EOSSBS packets should never contain any gobs and vice-versa */
if (avail >= 3 && *parse_data == 0 && *(parse_data + 1) == 0
&& *(parse_data + 2) >= 0x80) {
GST_DEBUG_OBJECT (rtph263ppay, " Found GOB header");
found_gob = TRUE;
}
/* Find next and cut the packet accordingly */
/* TODO we should get as many gobs as possible until MTU is reached, this
* code seems to just get one GOB per packet */
while (parsed_len + 2 < avail) {
if (parse_data[parsed_len] == 0 && parse_data[parsed_len + 1] == 0
&& parse_data[parsed_len + 2] >= 0x80) {