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gst/rtp/: Added experimental SVQ3 depayloader.

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Original commit message from CVS:
* gst/rtp/Makefile.am:
* gst/rtp/gstrtp.c: (plugin_init):
* gst/rtp/gstrtpsv3vdepay.c: (gst_rtp_sv3v_depay_base_init),
(gst_rtp_sv3v_depay_class_init), (gst_rtp_sv3v_depay_init),
(gst_rtp_sv3v_depay_finalize), (gst_rtp_sv3v_depay_setcaps),
(gst_rtp_sv3v_depay_process), (gst_rtp_sv3v_depay_set_property),
(gst_rtp_sv3v_depay_get_property),
(gst_rtp_sv3v_depay_change_state),
(gst_rtp_sv3v_depay_plugin_init):
* gst/rtp/gstrtpsv3vdepay.h:
Added experimental SVQ3 depayloader.
This commit is contained in:
Wim Taymans 2006-08-18 16:52:21 +00:00
parent ab9b853b84
commit b04309946b
5 changed files with 433 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
ChangeLog
View file

@ -1,3 +1,17 @@
2006-08-18 Wim Taymans <wim@fluendo.com>
* gst/rtp/Makefile.am:
* gst/rtp/gstrtp.c: (plugin_init):
* gst/rtp/gstrtpsv3vdepay.c: (gst_rtp_sv3v_depay_base_init),
(gst_rtp_sv3v_depay_class_init), (gst_rtp_sv3v_depay_init),
(gst_rtp_sv3v_depay_finalize), (gst_rtp_sv3v_depay_setcaps),
(gst_rtp_sv3v_depay_process), (gst_rtp_sv3v_depay_set_property),
(gst_rtp_sv3v_depay_get_property),
(gst_rtp_sv3v_depay_change_state),
(gst_rtp_sv3v_depay_plugin_init):
* gst/rtp/gstrtpsv3vdepay.h:
Added experimental SVQ3 depayloader.
2006-08-18 Edward Hervey <edward@fluendo.com>
* ext/dv/gstdvdemux.c: (gst_dvdemux_handle_pull_seek),

6
gst/rtp/Makefile.am
View file

@ -24,7 +24,8 @@ libgstrtp_la_SOURCES = \
gstrtpmp4gdepay.c \
gstrtpmp4gpay.c \
gstrtpspeexdepay.c \
gstrtpspeexpay.c
gstrtpspeexpay.c \
gstrtpsv3vdepay.c
#gstrtpL16pay.c gstrtpL16depay.c
@ -64,4 +65,5 @@ noinst_HEADERS = \
gstrtpdepay.h \
gstasteriskh263.h \
gstrtpspeexdepay.h \
gstrtpspeexpay.h
gstrtpspeexpay.h \
gstrtpsv3vdepay.c

4
gst/rtp/gstrtp.c
View file

@ -44,6 +44,7 @@
#include "gstrtpmp4gpay.h"
#include "gstrtpspeexpay.h"
#include "gstrtpspeexdepay.h"
#include "gstrtpsv3vdepay.h"
static gboolean
plugin_init (GstPlugin * plugin)
@ -117,6 +118,9 @@ plugin_init (GstPlugin * plugin)
if (!gst_rtp_speex_depay_plugin_init (plugin))
return FALSE;
if (!gst_rtp_sv3v_depay_plugin_init (plugin))
return FALSE;
return TRUE;
}

348
gst/rtp/gstrtpsv3vdepay.c Normal file
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@ -0,0 +1,348 @@
/* 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.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <string.h>
#include <gst/rtp/gstrtpbuffer.h>
#include "gstrtpsv3vdepay.h"
/* elementfactory information */
static const GstElementDetails gst_rtp_sv3vdepay_details =
GST_ELEMENT_DETAILS ("RTP packet parser",
"Codec/Depayr/Network",
"Extracts SVQ3 video from RTP packets (no RFC)",
"Wim Taymans <wim@fluendo.com>");
/* RtpSV3VDepay signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0,
ARG_FREQUENCY
};
static GstStaticPadTemplate gst_rtp_sv3v_depay_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-svq, " "svqversion = (int) 3")
);
static GstStaticPadTemplate gst_rtp_sv3v_depay_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp, "
"media = (string) \"video\", "
"clock-rate = (int) 90000, " "encoding-name = (string) \"X-SV3V-ES\"")
);
GST_BOILERPLATE (GstRtpSV3VDepay, gst_rtp_sv3v_depay, GstBaseRTPDepayload,
GST_TYPE_BASE_RTP_DEPAYLOAD);
static void gst_rtp_sv3v_depay_finalize (GObject * object);
static void gst_rtp_sv3v_depay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_rtp_sv3v_depay_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstStateChangeReturn gst_rtp_sv3v_depay_change_state (GstElement *
element, GstStateChange transition);
static GstBuffer *gst_rtp_sv3v_depay_process (GstBaseRTPDepayload * depayload,
GstBuffer * buf);
gboolean gst_rtp_sv3v_depay_setcaps (GstBaseRTPDepayload * filter,
GstCaps * caps);
static void
gst_rtp_sv3v_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_sv3v_depay_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtp_sv3v_depay_sink_template));
gst_element_class_set_details (element_class, &gst_rtp_sv3vdepay_details);
}
static void
gst_rtp_sv3v_depay_class_init (GstRtpSV3VDepayClass * 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_sv3v_depay_process;
gstbasertpdepayload_class->set_caps = gst_rtp_sv3v_depay_setcaps;
gobject_class->finalize = gst_rtp_sv3v_depay_finalize;
gobject_class->set_property = gst_rtp_sv3v_depay_set_property;
gobject_class->get_property = gst_rtp_sv3v_depay_get_property;
gstelement_class->change_state = gst_rtp_sv3v_depay_change_state;
}
static void
gst_rtp_sv3v_depay_init (GstRtpSV3VDepay * rtpsv3vdepay,
GstRtpSV3VDepayClass * klass)
{
rtpsv3vdepay->adapter = gst_adapter_new ();
}
static void
gst_rtp_sv3v_depay_finalize (GObject * object)
{
GstRtpSV3VDepay *rtpsv3vdepay;
rtpsv3vdepay = GST_RTP_SV3V_DEPAY (object);
g_object_unref (rtpsv3vdepay->adapter);
rtpsv3vdepay->adapter = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
// only on the sink
gboolean
gst_rtp_sv3v_depay_setcaps (GstBaseRTPDepayload * filter, GstCaps * caps)
{
GstStructure *structure = gst_caps_get_structure (caps, 0);
gint clock_rate = 90000; // default
if (gst_structure_has_field (structure, "clock-rate"))
gst_structure_get_int (structure, "clock-rate", &clock_rate);
filter->clock_rate = clock_rate;
return TRUE;
}
static GstBuffer *
gst_rtp_sv3v_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
{
GstRtpSV3VDepay *rtpsv3vdepay;
GstBuffer *outbuf;
guint16 seq;
rtpsv3vdepay = GST_RTP_SV3V_DEPAY (depayload);
if (!gst_rtp_buffer_validate (buf))
goto bad_packet;
/* flush on sequence number gaps */
seq = gst_rtp_buffer_get_seq (buf);
if (seq != rtpsv3vdepay->nextseq) {
gst_adapter_clear (rtpsv3vdepay->adapter);
}
rtpsv3vdepay->nextseq = seq + 1;
{
gint payload_len;
guint8 *payload;
gboolean M;
gboolean C, S, E;
payload_len = gst_rtp_buffer_get_payload_len (buf);
if (payload_len < 3)
goto bad_packet;
payload = gst_rtp_buffer_get_payload (buf);
M = gst_rtp_buffer_get_marker (buf);
/* This is all a guess:
* 1 1 1 1 1 1
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* |0|C|S|E|0|0|0|0|0|0|0|0|0|0|0|0|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*
* C: config, packet contains config info
* S: start, packet contains start of frame
* E: end, packet contains end of frame
*/
/* this seems to indicate a packet with a config string sent before each
* keyframe */
C = (payload[0] & 0x40) == 0x40;
/* redundant with the RTP marker bit */
S = (payload[0] & 0x20) == 0x20;
E = (payload[0] & 0x10) == 0x10;
if (C) {
GstCaps *caps;
GstBuffer *codec_data;
GValue value = { 0 };
/* if we already have caps, we don't need to do anything. FIXME, check if
* something changed. */
if (GST_PAD_CAPS (GST_BASE_RTP_DEPAYLOAD_SRCPAD (depayload)))
return NULL;
/* No idea... These are the two examples I found.. */
if (payload[2] == 0x1d) {
rtpsv3vdepay->width = 160;
rtpsv3vdepay->height = 128;
} else if (payload[2] == 0xdd) {
rtpsv3vdepay->width = 320;
rtpsv3vdepay->height = 240;
}
/* we need a dummy empty codec data */
g_value_init (&value, GST_TYPE_BUFFER);
gst_value_deserialize (&value, "");
codec_data = gst_value_get_buffer (&value);
caps = gst_caps_new_simple ("video/x-svq",
"svqversion", G_TYPE_INT, 3,
"width", G_TYPE_INT, rtpsv3vdepay->width,
"height", G_TYPE_INT, rtpsv3vdepay->height,
"codec_data", GST_TYPE_BUFFER, codec_data, NULL);
gst_pad_set_caps (GST_BASE_RTP_DEPAYLOAD_SRCPAD (depayload), caps);
gst_caps_unref (caps);
g_value_unset (&value);
return NULL;
}
/* store data in adapter, stip off 2 bytes header */
outbuf = gst_rtp_buffer_get_payload_subbuffer (buf, 2, -1);
gst_adapter_push (rtpsv3vdepay->adapter, outbuf);
if (M) {
/* frame is completed: push contents of adapter */
guint avail;
guint8 *data;
guint32 timestamp;
avail = gst_adapter_available (rtpsv3vdepay->adapter);
data = gst_adapter_take (rtpsv3vdepay->adapter, avail);
/* create buffer with data */
outbuf = gst_rtp_buffer_new_take_data (data, avail);
/* timestamp for complete buffer is that of last buffer as well */
timestamp = gst_rtp_buffer_get_timestamp (buf);
GST_BUFFER_TIMESTAMP (outbuf) =
gst_util_uint64_scale_int (timestamp, GST_SECOND,
depayload->clock_rate);
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (depayload->srcpad));
return outbuf;
}
}
return NULL;
/* ERRORS */
bad_packet:
{
GST_ELEMENT_WARNING (rtpsv3vdepay, STREAM, DECODE,
("Packet did not validate"), (NULL));
return NULL;
}
}
static void
gst_rtp_sv3v_depay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRtpSV3VDepay *rtpsv3vdepay;
rtpsv3vdepay = GST_RTP_SV3V_DEPAY (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_rtp_sv3v_depay_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstRtpSV3VDepay *rtpsv3vdepay;
rtpsv3vdepay = GST_RTP_SV3V_DEPAY (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
gst_rtp_sv3v_depay_change_state (GstElement * element,
GstStateChange transition)
{
GstRtpSV3VDepay *rtpsv3vdepay;
GstStateChangeReturn ret;
rtpsv3vdepay = GST_RTP_SV3V_DEPAY (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_adapter_clear (rtpsv3vdepay->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_sv3v_depay_plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rtpsv3vdepay",
GST_RANK_NONE, GST_TYPE_RTP_SV3V_DEPAY);
}

63
gst/rtp/gstrtpsv3vdepay.h Normal file
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@ -0,0 +1,63 @@
/* 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_SV3V_DEPAY_H__
#define __GST_RTP_SV3V_DEPAY_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
#include <gst/rtp/gstbasertpdepayload.h>
G_BEGIN_DECLS
#define GST_TYPE_RTP_SV3V_DEPAY \
(gst_rtp_sv3v_depay_get_type())
#define GST_RTP_SV3V_DEPAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_SV3V_DEPAY,GstRtpSV3VDepay))
#define GST_RTP_SV3V_DEPAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_SV3V_DEPAY,GstRtpSV3VDepayClass))
#define GST_IS_RTP_SV3V_DEPAY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_SV3V_DEPAY))
#define GST_IS_RTP_SV3V_DEPAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_SV3V_DEPAY))
typedef struct _GstRtpSV3VDepay GstRtpSV3VDepay;
typedef struct _GstRtpSV3VDepayClass GstRtpSV3VDepayClass;
struct _GstRtpSV3VDepay
{
GstBaseRTPDepayload depayload;
GstAdapter *adapter;
guint16 nextseq;
guint width;
guint height;
};
struct _GstRtpSV3VDepayClass
{
GstBaseRTPDepayloadClass parent_class;
};
gboolean gst_rtp_sv3v_depay_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_RTP_SV3V_DEPAY_H__ */