Commit ffed349b authored by Wim Taymans's avatar Wim Taymans

gst/rtp/: Caps extra properties must be defined as strings for depayloaders...

gst/rtp/: Caps extra properties must be defined as strings for depayloaders because they are generated from an SDP.

Original commit message from CVS:
* gst/rtp/gstrtpamrdepay.c:
* gst/rtp/gstrtpmp4gdepay.c:
Caps extra properties must be defined as strings for
depayloaders because they are generated from an SDP.
* gst/rtp/Makefile.am:
* gst/rtp/gstrtp.c: (plugin_init):
* gst/rtp/gstrtph264depay.c: (gst_rtp_h264_depay_base_init),
(gst_rtp_h264_depay_class_init), (gst_rtp_h264_depay_init),
(gst_rtp_h264_depay_finalize), (decode_base64),
(gst_rtp_h264_depay_setcaps), (gst_rtp_h264_depay_process),
(gst_rtp_h264_depay_set_property),
(gst_rtp_h264_depay_get_property),
(gst_rtp_h264_depay_change_state),
(gst_rtp_h264_depay_plugin_init):
* gst/rtp/gstrtph264depay.h:
Added basic, not completely functional RFC 3984 H264 depayloader.
parent 6eedcfbc
2006-08-16 Wim Taymans <wim@fluendo.com>
* gst/rtp/gstrtpamrdepay.c:
* gst/rtp/gstrtpmp4gdepay.c:
Caps extra properties must be defined as strings for
depayloaders because they are generated from an SDP.
* gst/rtp/Makefile.am:
* gst/rtp/gstrtp.c: (plugin_init):
* gst/rtp/gstrtph264depay.c: (gst_rtp_h264_depay_base_init),
(gst_rtp_h264_depay_class_init), (gst_rtp_h264_depay_init),
(gst_rtp_h264_depay_finalize), (decode_base64),
(gst_rtp_h264_depay_setcaps), (gst_rtp_h264_depay_process),
(gst_rtp_h264_depay_set_property),
(gst_rtp_h264_depay_get_property),
(gst_rtp_h264_depay_change_state),
(gst_rtp_h264_depay_plugin_init):
* gst/rtp/gstrtph264depay.h:
Added basic, not completely functional RFC 3984 H264 depayloader.
2006-08-16 Wim Taymans <wim@fluendo.com>
* gst/rtsp/gstrtpdec.c: (gst_rtpdec_init), (gst_rtpdec_getcaps):
......
......@@ -16,6 +16,7 @@ libgstrtp_la_SOURCES = \
gstrtph263pdepay.c \
gstrtph263ppay.c \
gstrtph263pay.c \
gstrtph264depay.c \
gstasteriskh263.c \
gstrtpmp2tdepay.c \
gstrtpmp4vdepay.c \
......@@ -54,6 +55,7 @@ noinst_HEADERS = \
gstrtph263pdepay.h \
gstrtph263ppay.h \
gstrtph263pay.h \
gstrtph264depay.h \
gstrtpmp2tdepay.h \
gstrtpmp4vdepay.h \
gstrtpmp4vpay.h \
......
......@@ -35,6 +35,7 @@
#include "gstrtph263pdepay.h"
#include "gstrtph263ppay.h"
#include "gstrtph263pay.h"
#include "gstrtph264depay.h"
#include "gstasteriskh263.h"
#include "gstrtpmp2tdepay.h"
#include "gstrtpmp4vdepay.h"
......@@ -89,6 +90,9 @@ plugin_init (GstPlugin * plugin)
if (!gst_rtp_h263_pay_plugin_init (plugin))
return FALSE;
if (!gst_rtp_h264_depay_plugin_init (plugin))
return FALSE;
if (!gst_asteriskh263_plugin_init (plugin))
return FALSE;
......
......@@ -65,6 +65,8 @@ GST_STATIC_PAD_TEMPLATE ("sink",
"clock-rate = (int) 8000, "
"encoding-name = (string) \"AMR\", "
"encoding-params = (string) \"1\", "
/* NOTE that all values must be strings in orde to be able to do SDP <->
* GstCaps mapping. */
"octet-align = (string) \"1\", "
"crc = (string) { \"0\", \"1\" }, "
"robust-sorting = (string) \"0\", " "interleaving = (string) \"0\""
......
/* GStreamer
* Copyright (C) <2006> 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 "gstrtph264depay.h"
/* elementfactory information */
static const GstElementDetails gst_rtp_h264depay_details =
GST_ELEMENT_DETAILS ("RTP packet parser",
"Codec/Depayr/Network",
"Extracts H264 video from RTP packets (RFC 3984)",
"Wim Taymans <wim@fluendo.com>");
/* RtpH264Depay signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0,
ARG_FREQUENCY
};
static GstStaticPadTemplate gst_rtp_h264_depay_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-h264")
);
static GstStaticPadTemplate gst_rtp_h264_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) \"H264\"")
/** optional parameters **/
/* "profile-level-id = (string) ANY, " */
/* "max-mbps = (string) ANY, " */
/* "max-fs = (string) ANY, " */
/* "max-cpb = (string) ANY, " */
/* "max-dpb = (string) ANY, " */
/* "max-br = (string) ANY, " */
/* "redundant-pic-cap = (string) { \"0\", \"1\" }, " */
/* "sprop-parameter-sets = (string) ANY, " */
/* "parameter-add = (string) { \"0\", \"1\" }, " */
/* "packetization-mode = (string) { \"0\", \"1\", \"2\" }, " */
/* "sprop-interleaving-depth = (string) ANY, " */
/* "sprop-deint-buf-req = (string) ANY, " */
/* "deint-buf-cap = (string) ANY, " */
/* "sprop-init-buf-time = (string) ANY, " */
/* "sprop-max-don-diff = (string) ANY, " */
/* "max-rcmd-nalu-size = (string) ANY " */
);
GST_BOILERPLATE (GstRtpH264Depay, gst_rtp_h264_depay, GstBaseRTPDepayload,
GST_TYPE_BASE_RTP_DEPAYLOAD);
static void gst_rtp_h264_depay_finalize (GObject * object);
static void gst_rtp_h264_depay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_rtp_h264_depay_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstStateChangeReturn gst_rtp_h264_depay_change_state (GstElement *
element, GstStateChange transition);
static GstBuffer *gst_rtp_h264_depay_process (GstBaseRTPDepayload * depayload,
GstBuffer * buf);
static gboolean gst_rtp_h264_depay_setcaps (GstBaseRTPDepayload * filter,
GstCaps * caps);
static void
gst_rtp_h264_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_h264_depay_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtp_h264_depay_sink_template));
gst_element_class_set_details (element_class, &gst_rtp_h264depay_details);
}
static void
gst_rtp_h264_depay_class_init (GstRtpH264DepayClass * 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_h264_depay_process;
gstbasertpdepayload_class->set_caps = gst_rtp_h264_depay_setcaps;
gobject_class->finalize = gst_rtp_h264_depay_finalize;
gobject_class->set_property = gst_rtp_h264_depay_set_property;
gobject_class->get_property = gst_rtp_h264_depay_get_property;
gstelement_class->change_state = gst_rtp_h264_depay_change_state;
}
static void
gst_rtp_h264_depay_init (GstRtpH264Depay * rtph264depay,
GstRtpH264DepayClass * klass)
{
rtph264depay->adapter = gst_adapter_new ();
}
static void
gst_rtp_h264_depay_finalize (GObject * object)
{
GstRtpH264Depay *rtph264depay;
rtph264depay = GST_RTP_H264_DEPAY (object);
g_object_unref (rtph264depay->adapter);
rtph264depay->adapter = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static const guint8 a2bin[256] = {
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 62, 64, 64, 64, 63,
52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 64, 64, 64, 64, 64, 64,
64, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 64, 64, 64, 64, 64,
64, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 64, 64, 64, 64, 64,
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64
};
static guint
decode_base64 (gchar * in, guint8 * out)
{
guint8 v1, v2;
guint len = 0;
v1 = a2bin[(gint) * in];
while (v1 < 63) {
/* read 4 bytes, write 3 bytes, invalid base64 are zeroes */
v2 = a2bin[(gint) * ++in];
*out++ = (v1 << 2) | ((v2 & 0x3f) >> 4);
v1 = (v2 > 63 ? 64 : a2bin[(gint) * ++in]);
*out++ = (v2 << 4) | ((v1 & 0x3f) >> 2);
v2 = (v1 > 63 ? 64 : a2bin[(gint) * ++in]);
*out++ = (v1 << 6) | (v2 & 0x3f);
v1 = (v2 > 63 ? 64 : a2bin[(gint) * ++in]);
len += 3;
}
/* move to '\0' */
while (*in != '\0')
in++;
/* subtract padding */
while (len > 0 && *--in == '=')
len--;
return len;
}
static gboolean
gst_rtp_h264_depay_setcaps (GstBaseRTPDepayload * filter, GstCaps * caps)
{
GstCaps *srccaps = NULL;
gint clock_rate = 90000;
GstStructure *structure = gst_caps_get_structure (caps, 0);
if (gst_structure_has_field (structure, "clock-rate")) {
gst_structure_get_int (structure, "clock-rate", &clock_rate);
}
srccaps = gst_caps_new_simple ("video/x-h264", NULL);
if (gst_structure_has_field (structure, "sprop-parameter-sets")) {
const gchar *ps;
gchar **params;
guint len, total;
gint i;
GstBuffer *codec_data;
guint8 *b64;
/* Base64 encoded, comma separated config NALs */
ps = gst_structure_get_string (structure, "sprop-parameter-sets");
params = g_strsplit (ps, ",", 0);
/* count total number of bytes in base64 */
len = 0;
for (i = 0; params[i]; i++) {
len += strlen (params[i]);
}
/* we seriously overshoot the length, but it's fine. */
codec_data = gst_buffer_new_and_alloc (len);
b64 = GST_BUFFER_DATA (codec_data);
total = 0;
for (i = 0; params[i]; i++) {
*b64++ = 0;
*b64++ = 0;
*b64++ = 1;
len = decode_base64 (params[i], b64);
total += (len + 3);
b64 += len;
}
GST_BUFFER_SIZE (codec_data) = total;
gst_caps_set_simple (srccaps,
"codec_data", GST_TYPE_BUFFER, codec_data, NULL);
}
filter->clock_rate = clock_rate;
gst_pad_set_caps (filter->srcpad, srccaps);
gst_caps_unref (srccaps);
return TRUE;
}
static GstBuffer *
gst_rtp_h264_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
{
GstRtpH264Depay *rtph264depay;
GstBuffer *outbuf;
rtph264depay = GST_RTP_H264_DEPAY (depayload);
if (!gst_rtp_buffer_validate (buf))
goto bad_packet;
{
gint payload_len;
guint8 *payload;
guint header_len;
guint8 nal_ref_idc, nal_unit_type;
payload_len = gst_rtp_buffer_get_payload_len (buf);
payload = gst_rtp_buffer_get_payload (buf);
/* +---------------+
* |0|1|2|3|4|5|6|7|
* +-+-+-+-+-+-+-+-+
* |F|NRI| Type |
* +---------------+
*
* F must be 0.
*/
nal_ref_idc = (payload[0] & 0x60) >> 5;
nal_unit_type = payload[0] & 0x1f;
GST_DEBUG_OBJECT (rtph264depay, "NRI %d, Type %d", nal_ref_idc,
nal_unit_type);
switch (nal_unit_type) {
case 0:
case 30:
case 31:
/* undefined */
goto undefined_type;
case 24:
/* STAP-A Single-time aggregation packet 5.7.1 */
header_len = 1;
break;
case 25:
/* STAP-B Single-time aggregation packet 5.7.1 */
case 26:
/* MTAP16 Multi-time aggregation packet 5.7.2 */
case 27:
/* MTAP24 Multi-time aggregation packet 5.7.2 */
header_len = 3;
break;
case 28:
case 29:
{
/* FU-A Fragmentation unit 5.8 */
/* FU-B Fragmentation unit 5.8 */
gboolean S, E;
/* +---------------+
* |0|1|2|3|4|5|6|7|
* +-+-+-+-+-+-+-+-+
* |S|E|R| Type |
* +---------------+
*
* R is reserved and always 0
*/
S = (payload[1] & 0x80) == 0x80;
E = (payload[1] & 0x40) == 0x40;
GST_DEBUG_OBJECT (rtph264depay, "S %d, E %d", S, E);
if (S) {
/* NAL unit starts here */
guint8 *outdata;
guint outsize;
outsize = payload_len - 1;
outbuf = gst_buffer_new_and_alloc (outsize + 3);
outdata = GST_BUFFER_DATA (outbuf);
memcpy (outdata + 3, payload + 1, outsize);
/* reconstruct NAL header */
outdata[0] = 0x00;
outdata[1] = 0x00;
outdata[2] = 0x01;
outdata[3] = (payload[0] & 0xe0) | (payload[1] & 0x1f);
/* and assemble in the adapter */
gst_adapter_push (rtph264depay->adapter, outbuf);
} else {
/* NAL unit data */
guint outsize;
guint8 *outdata;
/* strip off 2 header bytes */
outsize = payload_len - 2;
outbuf = gst_buffer_new_and_alloc (outsize);
outdata = GST_BUFFER_DATA (outbuf);
memcpy (outdata, payload + 2, outsize);
/* and assemble in the adapter */
gst_adapter_push (rtph264depay->adapter, outbuf);
}
/* if NAL unit ends, flush the adapter */
if (E) {
guint outsize;
guint8 *outdata;
outsize = gst_adapter_available (rtph264depay->adapter);
outdata = gst_adapter_take (rtph264depay->adapter, outsize);
outbuf = gst_buffer_new ();
GST_BUFFER_SIZE (outbuf) = outsize;
GST_BUFFER_DATA (outbuf) = outdata;
GST_BUFFER_MALLOCDATA (outbuf) = outdata;
gst_buffer_set_caps (outbuf,
(GstCaps *) gst_pad_get_pad_template_caps (depayload->srcpad));
GST_DEBUG_OBJECT (rtph264depay, "output %d bytes", outsize);
return outbuf;
}
break;
}
default:
{
guint outsize;
guint8 *outdata;
/* 1-23 NAL unit Single NAL unit packet per H.264 5.6 */
/* the entire payload is the output buffer */
outsize = payload_len + 3;
outbuf = gst_buffer_new_and_alloc (outsize);
outdata = GST_BUFFER_DATA (outbuf);
outdata[0] = 0;
outdata[1] = 0;
outdata[2] = 1;
memcpy (&outdata[3], payload, payload_len);
gst_buffer_set_caps (outbuf,
(GstCaps *) gst_pad_get_pad_template_caps (depayload->srcpad));
return outbuf;
}
}
}
return NULL;
/* ERRORS */
bad_packet:
{
GST_ELEMENT_WARNING (rtph264depay, STREAM, DECODE,
("Packet did not validate"), (NULL));
return NULL;
}
undefined_type:
{
GST_ELEMENT_WARNING (rtph264depay, STREAM, DECODE,
("Undefined packet type"), (NULL));
return NULL;
}
}
static void
gst_rtp_h264_depay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRtpH264Depay *rtph264depay;
rtph264depay = GST_RTP_H264_DEPAY (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_rtp_h264_depay_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstRtpH264Depay *rtph264depay;
rtph264depay = GST_RTP_H264_DEPAY (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
gst_rtp_h264_depay_change_state (GstElement * element,
GstStateChange transition)
{
GstRtpH264Depay *rtph264depay;
GstStateChangeReturn ret;
rtph264depay = GST_RTP_H264_DEPAY (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_adapter_clear (rtph264depay->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_h264_depay_plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rtph264depay",
GST_RANK_NONE, GST_TYPE_RTP_H264_DEPAY);
}
/* GStreamer
* Copyright (C) <2006> 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_H264_DEPAY_H__
#define __GST_RTP_H264_DEPAY_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
#include <gst/rtp/gstbasertpdepayload.h>
G_BEGIN_DECLS
#define GST_TYPE_RTP_H264_DEPAY \
(gst_rtp_h264_depay_get_type())
#define GST_RTP_H264_DEPAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_H264_DEPAY,GstRtpH264Depay))
#define GST_RTP_H264_DEPAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_H264_DEPAY,GstRtpH264DepayClass))
#define GST_IS_RTP_H264_DEPAY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_H264_DEPAY))
#define GST_IS_RTP_H264_DEPAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_H264_DEPAY))
typedef struct _GstRtpH264Depay GstRtpH264Depay;
typedef struct _GstRtpH264DepayClass GstRtpH264DepayClass;
struct _GstRtpH264Depay
{
GstBaseRTPDepayload depayload;
GstAdapter *adapter;
guint frequency;
};
struct _GstRtpH264DepayClass
{
GstBaseRTPDepayloadClass parent_class;
};
gboolean gst_rtp_h264_depay_plugin_init (GstPlugin * plugin);
G_END_DECLS