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gst/rtp/: Port and enable raw audio payloader/depayloader. Needs a bit more work on the payloader side.

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Original commit message from CVS:
* gst/rtp/Makefile.am:
* gst/rtp/gstrtp.c: (plugin_init):
* gst/rtp/gstrtpL16depay.c: (gst_rtp_L16_depay_base_init),
(gst_rtp_L16_depay_class_init), (gst_rtp_L16_depay_init),
(gst_rtp_L16_depay_parse_int), (gst_rtp_L16_depay_setcaps),
(gst_rtp_L16_depay_process), (gst_rtp_L16_depay_set_property),
(gst_rtp_L16_depay_get_property), (gst_rtp_L16_depay_change_state),
(gst_rtp_L16_depay_plugin_init):
* gst/rtp/gstrtpL16depay.h:
* gst/rtp/gstrtpL16pay.c: (gst_rtp_L16_pay_get_type),
(gst_rtp_L16_pay_base_init), (gst_rtp_L16_pay_class_init),
(gst_rtp_L16_pay_init), (gst_rtp_L16_pay_finalize),
(gst_rtp_L16_pay_setcaps), (gst_rtp_L16_pay_handle_buffer),
(gst_rtp_L16_pay_plugin_init):
* gst/rtp/gstrtpL16pay.h:
Port and enable raw audio payloader/depayloader. Needs a bit more work
on the payloader side.
This commit is contained in:
Wim Taymans 2007-01-24 18:20:14 +00:00
parent a6a9207c42
commit 85420195b2
7 changed files with 329 additions and 460 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
ChangeLog
View file

@ -1,3 +1,23 @@
2007-01-24 Wim Taymans <wim@fluendo.com>
* gst/rtp/Makefile.am:
* gst/rtp/gstrtp.c: (plugin_init):
* gst/rtp/gstrtpL16depay.c: (gst_rtp_L16_depay_base_init),
(gst_rtp_L16_depay_class_init), (gst_rtp_L16_depay_init),
(gst_rtp_L16_depay_parse_int), (gst_rtp_L16_depay_setcaps),
(gst_rtp_L16_depay_process), (gst_rtp_L16_depay_set_property),
(gst_rtp_L16_depay_get_property), (gst_rtp_L16_depay_change_state),
(gst_rtp_L16_depay_plugin_init):
* gst/rtp/gstrtpL16depay.h:
* gst/rtp/gstrtpL16pay.c: (gst_rtp_L16_pay_get_type),
(gst_rtp_L16_pay_base_init), (gst_rtp_L16_pay_class_init),
(gst_rtp_L16_pay_init), (gst_rtp_L16_pay_finalize),
(gst_rtp_L16_pay_setcaps), (gst_rtp_L16_pay_handle_buffer),
(gst_rtp_L16_pay_plugin_init):
* gst/rtp/gstrtpL16pay.h:
Port and enable raw audio payloader/depayloader. Needs a bit more work
on the payloader side.
2007-01-24 Wim Taymans <wim@fluendo.com>
* gst/rtsp/gstrtspsrc.c: (pad_blocked),

3
gst/rtp/Makefile.am
View file

@ -21,6 +21,8 @@ libgstrtp_la_SOURCES = \
gstrtph263ppay.c \
gstrtph263pay.c \
gstrtph264depay.c \
gstrtpL16depay.c \
gstrtpL16pay.c \
gstasteriskh263.c \
gstrtpmp2tdepay.c \
gstrtpmp4vdepay.c \
@ -35,7 +37,6 @@ libgstrtp_la_SOURCES = \
gstrtpvorbisdepay.c \
gstrtpvorbispay.c
#gstrtpL16pay.c gstrtpL16depay.c
if HAVE_WINSOCK2_H
WINSOCK2_LIBS = -lws2_32

8
gst/rtp/gstrtp.c
View file

@ -40,6 +40,8 @@
#include "gstrtph263ppay.h"
#include "gstrtph263pay.h"
#include "gstrtph264depay.h"
#include "gstrtpL16depay.h"
#include "gstrtpL16pay.h"
#include "gstasteriskh263.h"
#include "gstrtpmp2tdepay.h"
#include "gstrtpmp4vdepay.h"
@ -114,6 +116,12 @@ plugin_init (GstPlugin * plugin)
if (!gst_rtp_h264_depay_plugin_init (plugin))
return FALSE;
if (!gst_rtp_L16_pay_plugin_init (plugin))
return FALSE;
if (!gst_rtp_L16_depay_plugin_init (plugin))
return FALSE;
if (!gst_asteriskh263_plugin_init (plugin))
return FALSE;

321
gst/rtp/gstrtpL16depay.c
View file

@ -1,5 +1,5 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2007> Wim Taymans <wim@fluendo.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@ -21,293 +21,258 @@
#include "config.h"
#endif
#include <string.h>
#include "gstrtpL16depay.h"
#include "gstrtp-common.h"
GST_DEBUG_CATEGORY_STATIC (rtpL16depay_debug);
#define GST_CAT_DEFAULT (rtpL16depay_debug)
/* elementfactory information */
static const GstElementDetails gst_rtp_L16depay_details =
static const GstElementDetails gst_rtp_L16_depay_details =
GST_ELEMENT_DETAILS ("RTP packet depayloader",
"Codec/Depayloader/Network",
"Extracts raw audio from RTP packets",
"Zeeshan Ali <zak147@yahoo.com>");
"Zeeshan Ali <zak147@yahoo.com>," "Wim Taymans <wim@fluendo.com>");
/* RtpL16Depay signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0,
ARG_FREQUENCY,
ARG_PAYLOAD_TYPE
};
static GstStaticPadTemplate gst_rtp_L16depay_src_template =
static GstStaticPadTemplate gst_rtp_L16_depay_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"endianness = (int) BYTE_ORDER, "
"endianness = (int) BIG_ENDIAN, "
"signed = (boolean) true, "
"width = (int) 16, "
"depth = (int) 16, "
"rate = (int) [ 1000, 48000 ], " "channels = (int) [ 1, 2 ]")
"rate = (int) [ 1, MAX ], " "channels = (int) [ 1, MAX ]")
);
static GstStaticPadTemplate gst_rtp_L16depay_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
static GstStaticPadTemplate gst_rtp_L16_depay_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp")
GST_STATIC_CAPS ("application/x-rtp, "
"media = (string) \"audio\", "
"payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", "
"clock-rate = (int) [ 1, MAX ], "
/* "channels = (int) [1, MAX]" */
/* "emphasis = (string) ANY" */
/* "channel-order = (string) ANY" */
"encoding-name = (string) \"L16\";"
"application/x-rtp, "
"media = (string) \"audio\", "
"payload = (int) { " GST_RTP_PAYLOAD_L16_STEREO_STRING ", "
GST_RTP_PAYLOAD_L16_MONO_STRING " }," "clock-rate = (int) [ 1, MAX ]"
/* "channels = (int) [1, MAX]" */
/* "emphasis = (string) ANY" */
/* "channel-order = (string) ANY" */
)
);
static void gst_rtp_L16depay_class_init (GstRtpL16DepayClass * klass);
static void gst_rtp_L16depay_base_init (GstRtpL16DepayClass * klass);
static void gst_rtp_L16depay_init (GstRtpL16Depay * rtpL16depay);
GST_BOILERPLATE (GstRtpL16Depay, gst_rtp_L16_depay, GstBaseRTPDepayload,
GST_TYPE_BASE_RTP_DEPAYLOAD);
static void gst_rtp_L16depay_chain (GstPad * pad, GstData * _data);
static gboolean gst_rtp_L16_depay_setcaps (GstBaseRTPDepayload * depayload,
GstCaps * caps);
static GstBuffer *gst_rtp_L16_depay_process (GstBaseRTPDepayload * depayload,
GstBuffer * buf);
static void gst_rtp_L16depay_set_property (GObject * object, guint prop_id,
static void gst_rtp_L16_depay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_rtp_L16depay_get_property (GObject * object, guint prop_id,
static void gst_rtp_L16_depay_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstStateChangeReturn gst_rtp_L16depay_change_state (GstElement *
element);
static GstElementClass *parent_class = NULL;
static GType
gst_rtp_L16depay_get_type (void)
{
static GType rtpL16depay_type = 0;
if (!rtpL16depay_type) {
static const GTypeInfo rtpL16depay_info = {
sizeof (GstRtpL16DepayClass),
(GBaseInitFunc) gst_rtp_L16depay_base_init,
NULL,
(GClassInitFunc) gst_rtp_L16depay_class_init,
NULL,
NULL,
sizeof (GstRtpL16Depay),
0,
(GInstanceInitFunc) gst_rtp_L16depay_init,
};
rtpL16depay_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstRtpL16Depay",
&rtpL16depay_info, 0);
}
return rtpL16depay_type;
}
static GstStateChangeReturn gst_rtp_L16_depay_change_state (GstElement *
element, GstStateChange transition);
static void
gst_rtp_L16depay_base_init (GstRtpL16DepayClass * klass)
gst_rtp_L16_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_L16depay_src_template));
gst_static_pad_template_get (&gst_rtp_L16_depay_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtp_L16depay_sink_template));
gst_element_class_set_details (element_class, &gst_rtp_L16depay_details);
gst_static_pad_template_get (&gst_rtp_L16_depay_sink_template));
gst_element_class_set_details (element_class, &gst_rtp_L16_depay_details);
}
static void
gst_rtp_L16depay_class_init (GstRtpL16DepayClass * klass)
gst_rtp_L16_depay_class_init (GstRtpL16DepayClass * 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);
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_PAYLOAD_TYPE,
g_param_spec_int ("payload_type", "payload_type", "payload type",
G_MININT, G_MAXINT, PAYLOAD_L16_STEREO, G_PARAM_READABLE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FREQUENCY,
g_param_spec_int ("frequency", "frequency", "frequency",
G_MININT, G_MAXINT, 44100, G_PARAM_READWRITE));
gobject_class->set_property = gst_rtp_L16_depay_set_property;
gobject_class->get_property = gst_rtp_L16_depay_get_property;
gobject_class->set_property = gst_rtp_L16depay_set_property;
gobject_class->get_property = gst_rtp_L16depay_get_property;
gstelement_class->change_state = gst_rtp_L16_depay_change_state;
gstelement_class->change_state = gst_rtp_L16depay_change_state;
gstbasertpdepayload_class->set_caps = gst_rtp_L16_depay_setcaps;
gstbasertpdepayload_class->process = gst_rtp_L16_depay_process;
GST_DEBUG_CATEGORY_INIT (rtpL16depay_debug, "rtpL16depay", 0,
"Raw Audio RTP Depayloader");
}
static void
gst_rtp_L16depay_init (GstRtpL16Depay * rtpL16depay)
gst_rtp_L16_depay_init (GstRtpL16Depay * rtpL16depay,
GstRtpL16DepayClass * klass)
{
rtpL16depay->srcpad =
gst_pad_new_from_static_template (&gst_rtp_L16depay_src_template, "src");
rtpL16depay->sinkpad =
gst_pad_new_from_static_template (&gst_rtp_L16depay_sink_template,
"sink");
gst_element_add_pad (GST_ELEMENT (rtpL16depay), rtpL16depay->srcpad);
gst_element_add_pad (GST_ELEMENT (rtpL16depay), rtpL16depay->sinkpad);
gst_pad_set_chain_function (rtpL16depay->sinkpad, gst_rtp_L16depay_chain);
rtpL16depay->frequency = 44100;
rtpL16depay->channels = 2;
rtpL16depay->payload_type = PAYLOAD_L16_STEREO;
}
void
gst_rtp_L16depay_ntohs (GstBuffer * buf)
static gint
gst_rtp_L16_depay_parse_int (GstStructure * structure, const gchar * field,
gint def)
{
gint16 *i, *len;
const gchar *str;
gint res;
/* FIXME: is this code correct or even sane at all? */
i = (gint16 *) GST_BUFFER_DATA (buf);
len = i + GST_BUFFER_SIZE (buf) / sizeof (gint16 *);
if ((str = gst_structure_get_string (structure, field)))
return atoi (str);
for (; i < len; i++) {
*i = g_ntohs (*i);
}
if (gst_structure_get_int (structure, field, &res))
return res;
return def;
}
void
gst_rtp_L16_caps_nego (GstRtpL16Depay * rtpL16depay)
static gboolean
gst_rtp_L16_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
{
GstCaps *caps;
GstStructure *structure;
GstRtpL16Depay *rtpL16depay;
gint clock_rate, payload;
gint channels;
GstCaps *srccaps;
caps =
gst_caps_copy (gst_static_caps_get (&gst_rtp_L16depay_src_template.
static_caps));
rtpL16depay = GST_RTP_L16_DEPAY (depayload);
gst_caps_set_simple (caps,
"rate", G_TYPE_INT, rtpL16depay->frequency,
"channel", G_TYPE_INT, rtpL16depay->channels, NULL);
structure = gst_caps_get_structure (caps, 0);
gst_pad_try_set_caps (rtpL16depay->srcpad, caps);
}
void
gst_rtp_L16depay_payloadtype_change (GstRtpL16Depay * rtpL16depay,
rtp_payload_t pt)
{
rtpL16depay->payload_type = pt;
switch (pt) {
case PAYLOAD_L16_MONO:
rtpL16depay->channels = 1;
payload = 96;
gst_structure_get_int (structure, "payload", &payload);
switch (payload) {
case GST_RTP_PAYLOAD_L16_STEREO:
channels = 2;
clock_rate = 44100;
break;
case PAYLOAD_L16_STEREO:
rtpL16depay->channels = 2;
case GST_RTP_PAYLOAD_L16_MONO:
channels = 1;
clock_rate = 44100;
break;
default:
g_warning ("unknown payload_t %d\n", pt);
channels = 0;
clock_rate = 0;
break;
}
gst_rtp_L16_caps_nego (rtpL16depay);
/* caps can overwrite defaults */
clock_rate =
gst_rtp_L16_depay_parse_int (structure, "clock-rate", clock_rate);
channels = gst_rtp_L16_depay_parse_int (structure, "channels", channels);
depayload->clock_rate = clock_rate;
rtpL16depay->rate = clock_rate;
rtpL16depay->channels = channels;
srccaps = gst_caps_new_simple ("audio/x-raw-int",
"endianness", G_TYPE_INT, G_BIG_ENDIAN,
"signed", G_TYPE_BOOLEAN, TRUE,
"width", G_TYPE_INT, 16,
"depth", G_TYPE_INT, 16,
"rate", G_TYPE_INT, clock_rate, "channels", G_TYPE_INT, channels, NULL);
gst_pad_set_caps (depayload->srcpad, srccaps);
gst_caps_unref (srccaps);
return TRUE;
}
static void
gst_rtp_L16depay_chain (GstPad * pad, GstData * _data)
static GstBuffer *
gst_rtp_L16_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
{
GstBuffer *buf = GST_BUFFER (_data);
GstRtpL16Depay *rtpL16depay;
GstBuffer *outbuf;
Rtp_Packet packet;
rtp_payload_t pt;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
rtpL16depay = GST_RTP_L16_DEPAY (depayload);
rtpL16depay = GST_RTP_L16_DEPAY (GST_OBJECT_PARENT (pad));
if (!gst_rtp_buffer_validate (buf))
goto bad_packet;
g_return_if_fail (rtpL16depay != NULL);
g_return_if_fail (GST_IS_RTP_L16_DEPAY (rtpL16depay));
{
gint payload_len;
guint8 *payload;
if (GST_IS_EVENT (buf)) {
GstEvent *event = GST_EVENT (buf);
payload_len = gst_rtp_buffer_get_payload_len (buf);
payload = gst_rtp_buffer_get_payload (buf);
gst_pad_event_default (pad, event);
if (payload_len <= 0)
goto empty_packet;
return;
GST_DEBUG_OBJECT (rtpL16depay, "got payload of %d bytes", payload_len);
outbuf = gst_rtp_buffer_get_payload_buffer (buf);
return outbuf;
}
return NULL;
if (GST_PAD_CAPS (rtpL16depay->srcpad) == NULL) {
gst_rtp_L16_caps_nego (rtpL16depay);
bad_packet:
{
GST_ELEMENT_WARNING (rtpL16depay, STREAM, DECODE,
("Packet did not validate."), (NULL));
return NULL;
}
packet =
rtp_packet_new_copy_data (GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
pt = rtp_packet_get_payload_type (packet);
if (pt != rtpL16depay->payload_type) {
gst_rtp_L16depay_payloadtype_change (rtpL16depay, pt);
empty_packet:
{
GST_ELEMENT_WARNING (rtpL16depay, STREAM, DECODE,
("Empty Payload."), (NULL));
return NULL;
}
outbuf = gst_buffer_new ();
GST_BUFFER_SIZE (outbuf) = rtp_packet_get_payload_len (packet);
GST_BUFFER_DATA (outbuf) = g_malloc (GST_BUFFER_SIZE (outbuf));
GST_BUFFER_TIMESTAMP (outbuf) =
g_ntohl (rtp_packet_get_timestamp (packet)) * GST_SECOND;
memcpy (GST_BUFFER_DATA (outbuf), rtp_packet_get_payload (packet),
GST_BUFFER_SIZE (outbuf));
GST_DEBUG ("gst_rtp_L16depay_chain: pushing buffer of size %d",
GST_BUFFER_SIZE (outbuf));
/* FIXME: According to RFC 1890, this is required, right? */
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
gst_rtp_L16depay_ntohs (outbuf);
#endif
gst_pad_push (rtpL16depay->srcpad, GST_DATA (outbuf));
rtp_packet_free (packet);
gst_buffer_unref (buf);
}
static void
gst_rtp_L16depay_set_property (GObject * object, guint prop_id,
gst_rtp_L16_depay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRtpL16Depay *rtpL16depay;
g_return_if_fail (GST_IS_RTP_L16_DEPAY (object));
rtpL16depay = GST_RTP_L16_DEPAY (object);
switch (prop_id) {
case ARG_PAYLOAD_TYPE:
gst_rtp_L16depay_payloadtype_change (rtpL16depay,
g_value_get_int (value));
break;
case ARG_FREQUENCY:
rtpL16depay->frequency = g_value_get_int (value);
break;
default:
break;
}
}
static void
gst_rtp_L16depay_get_property (GObject * object, guint prop_id, GValue * value,
gst_rtp_L16_depay_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstRtpL16Depay *rtpL16depay;
g_return_if_fail (GST_IS_RTP_L16_DEPAY (object));
rtpL16depay = GST_RTP_L16_DEPAY (object);
switch (prop_id) {
case ARG_PAYLOAD_TYPE:
g_value_set_int (value, rtpL16depay->payload_type);
break;
case ARG_FREQUENCY:
g_value_set_int (value, rtpL16depay->frequency);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -315,23 +280,20 @@ gst_rtp_L16depay_get_property (GObject * object, guint prop_id, GValue * value,
}
static GstStateChangeReturn
gst_rtp_L16depay_change_state (GstElement * element, GstStateChange transition)
gst_rtp_L16_depay_change_state (GstElement * element, GstStateChange transition)
{
GstRtpL16Depay *rtpL16depay;
GstStateChangeReturn ret;
rtpL16depay = GST_RTP_L16_DEPAY (element);
GST_DEBUG ("state pending %d\n", GST_STATE_PENDING (element));
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
default:
break;
}
/* if we haven't failed already, give the parent class a chance to ;-) */
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
@ -340,12 +302,11 @@ gst_rtp_L16depay_change_state (GstElement * element, GstStateChange transition)
default:
break;
}
return ret;
}
gboolean
gst_rtp_L16depay_plugin_init (GstPlugin * plugin)
gst_rtp_L16_depay_plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rtpL16depay",
GST_RANK_MARGINAL, GST_TYPE_RTP_L16_DEPAY);

20
gst/rtp/gstrtpL16depay.h
View file

@ -1,5 +1,5 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2007> Wim Taymans <wim@fluendo.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@ -21,14 +21,13 @@
#define __GST_RTP_L16_DEPAY_H__
#include <gst/gst.h>
#include "rtp-packet.h"
#include "gstrtp-common.h"
#include <gst/rtp/gstbasertpdepayload.h>
G_BEGIN_DECLS
/* Standard macros for defining types for this element. */
#define GST_TYPE_RTP_L16_DEPAY \
(gst_rtp_L16depay_get_type())
(gst_rtp_L16_depay_get_type())
#define GST_RTP_L16_DEPAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_L16_DEPAY,GstRtpL16Depay))
#define GST_RTP_L16_DEPAY_CLASS(klass) \
@ -44,24 +43,19 @@ typedef struct _GstRtpL16DepayClass GstRtpL16DepayClass;
/* Definition of structure storing data for this element. */
struct _GstRtpL16Depay
{
GstElement element;
GstBaseRTPDepayload depayload;
GstPad *sinkpad;
GstPad *srcpad;
guint frequency;
guint rate;
guint channels;
rtp_payload_t payload_type;
};
/* Standard definition defining a class for this element. */
struct _GstRtpL16DepayClass
{
GstElementClass parent_class;
GstBaseRTPDepayloadClass parent_class;
};
gboolean gst_rtp_L16depay_plugin_init (GstPlugin * plugin);
gboolean gst_rtp_L16_depay_plugin_init (GstPlugin * plugin);
G_END_DECLS

359
gst/rtp/gstrtpL16pay.c
View file

@ -1,5 +1,5 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2007> Wim Taymans <wim@fluendo.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@ -18,329 +18,224 @@
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
# include "config.h"
#endif
#include <string.h>
#include <stdlib.h>
#include <gst/rtp/gstrtpbuffer.h>
#include "gstrtpL16pay.h"
GST_DEBUG_CATEGORY_STATIC (rtpL16pay_debug);
#define GST_CAT_DEFAULT (rtpL16pay_debug)
/* elementfactory information */
static const GstElementDetails gst_rtpL16pay_details =
GST_ELEMENT_DETAILS ("RTP RAW audio payloader",
static const GstElementDetails gst_rtp_L16_pay_details =
GST_ELEMENT_DETAILS ("RTP packet payloader",
"Codec/Payloader/Network",
"Payload-encodes Raw Audio into a RTP packet",
"Zeeshan Ali <zak147@yahoo.com>");
"Payload-encode Raw audio into RTP packets (RFC 3551)",
"Wim Taymans <wim@fluendo.com>");
/* RtpL16Pay signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
/* FILL ME */
ARG_0
};
static GstStaticPadTemplate gst_rtpL16pay_sink_template =
static GstStaticPadTemplate gst_rtp_L16_pay_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"endianness = (int) BYTE_ORDER, "
"endianness = (int) BIG_ENDIAN, "
"signed = (boolean) true, "
"width = (int) 16, "
"depth = (int) 16, "
"rate = (int) [ 1000, 48000 ], " "channels = (int) [ 1, 2 ]")
"rate = (int) [ 1, MAX ], " "channels = (int) [ 1, MAX ]")
);
static GstStaticPadTemplate gst_rtpL16pay_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
static GstStaticPadTemplate gst_rtp_L16_pay_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp")
GST_STATIC_CAPS ("application/x-rtp, "
"media = (string) \"audio\", "
"payload = (int) [ 96, 127 ], "
"clock-rate = (int) [ 1, MAX ], "
"encoding-name = (string) \"L16\", "
"channels = (int) [ 1, MAX ], "
"rate = (int) [ 1, MAX ];"
"application/x-rtp, "
"media = (string) \"audio\", "
"payload = (int) { " GST_RTP_PAYLOAD_L16_STEREO_STRING ", "
GST_RTP_PAYLOAD_L16_MONO_STRING " }," "clock-rate = (int) 44100")
);
static void gst_rtpL16pay_class_init (GstRtpL16PayClass * klass);
static void gst_rtpL16pay_base_init (GstRtpL16PayClass * klass);
static void gst_rtpL16pay_init (GstRtpL16Pay * rtpL16enc);
static void gst_rtpL16pay_chain (GstPad * pad, GstData * _data);
static void gst_rtpL16pay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_rtpL16pay_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstPadLinkReturn gst_rtpL16pay_sinkconnect (GstPad * pad,
const GstCaps * caps);
static GstStateChangeReturn gst_rtpL16pay_change_state (GstElement * element,
GstStateChange transition);
static void gst_rtp_L16_pay_class_init (GstRtpL16PayClass * klass);
static void gst_rtp_L16_pay_base_init (GstRtpL16PayClass * klass);
static void gst_rtp_L16_pay_init (GstRtpL16Pay * rtpL16pay);
static void gst_rtp_L16_pay_finalize (GObject * object);
static GstElementClass *parent_class = NULL;
static gboolean gst_rtp_L16_pay_setcaps (GstBaseRTPPayload * basepayload,
GstCaps * caps);
static GstFlowReturn gst_rtp_L16_pay_handle_buffer (GstBaseRTPPayload * pad,
GstBuffer * buffer);
static GstBaseRTPPayloadClass *parent_class = NULL;
static GType
gst_rtpL16pay_get_type (void)
gst_rtp_L16_pay_get_type (void)
{
static GType rtpL16pay_type = 0;
if (!rtpL16pay_type) {
static const GTypeInfo rtpL16pay_info = {
sizeof (GstRtpL16PayClass),
(GBaseInitFunc) gst_rtpL16pay_base_init,
(GBaseInitFunc) gst_rtp_L16_pay_base_init,
NULL,
(GClassInitFunc) gst_rtpL16pay_class_init,
(GClassInitFunc) gst_rtp_L16_pay_class_init,
NULL,
NULL,
sizeof (GstRtpL16Pay),
0,
(GInstanceInitFunc) gst_rtpL16pay_init,
(GInstanceInitFunc) gst_rtp_L16_pay_init,
};
rtpL16pay_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstRtpL16Pay",
g_type_register_static (GST_TYPE_BASE_RTP_PAYLOAD, "GstRtpL16Pay",
&rtpL16pay_info, 0);
}
return rtpL16pay_type;
}
static void
gst_rtpL16pay_base_init (GstRtpL16PayClass * klass)
gst_rtp_L16_pay_base_init (GstRtpL16PayClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpL16pay_sink_template));
gst_static_pad_template_get (&gst_rtp_L16_pay_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpL16pay_src_template));
gst_element_class_set_details (element_class, &gst_rtpL16pay_details);
gst_static_pad_template_get (&gst_rtp_L16_pay_sink_template));
gst_element_class_set_details (element_class, &gst_rtp_L16_pay_details);
}
static void
gst_rtpL16pay_class_init (GstRtpL16PayClass * klass)
gst_rtp_L16_pay_class_init (GstRtpL16PayClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseRTPPayloadClass *gstbasertppayload_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gstbasertppayload_class = (GstBaseRTPPayloadClass *) klass;
parent_class = g_type_class_peek_parent (klass);
gobject_class->set_property = gst_rtpL16pay_set_property;
gobject_class->get_property = gst_rtpL16pay_get_property;
gobject_class->finalize = gst_rtp_L16_pay_finalize;
gstelement_class->change_state = gst_rtpL16pay_change_state;
gstbasertppayload_class->set_caps = gst_rtp_L16_pay_setcaps;
gstbasertppayload_class->handle_buffer = gst_rtp_L16_pay_handle_buffer;
GST_DEBUG_CATEGORY_INIT (rtpL16pay_debug, "rtpL16pay", 0,
"L16 RTP Payloader");
}
static void
gst_rtpL16pay_init (GstRtpL16Pay * rtpL16enc)
gst_rtp_L16_pay_init (GstRtpL16Pay * rtpL16pay)
{
rtpL16enc->sinkpad =
gst_pad_new_from_static_template (&gst_rtpL16pay_sink_template, "sink");
rtpL16enc->srcpad =
gst_pad_new_from_static_template (&gst_rtpL16pay_src_template, "src");
gst_element_add_pad (GST_ELEMENT (rtpL16enc), rtpL16enc->sinkpad);
gst_element_add_pad (GST_ELEMENT (rtpL16enc), rtpL16enc->srcpad);
gst_pad_set_chain_function (rtpL16enc->sinkpad, gst_rtpL16pay_chain);
gst_pad_set_link_function (rtpL16enc->sinkpad, gst_rtpL16pay_sinkconnect);
rtpL16enc->frequency = 44100;
rtpL16enc->channels = 2;
rtpL16enc->next_time = 0;
rtpL16enc->time_interval = 0;
rtpL16enc->seq = 0;
rtpL16enc->ssrc = random ();
rtpL16pay->adapter = gst_adapter_new ();
}
static GstPadLinkReturn
gst_rtpL16pay_sinkconnect (GstPad * pad, const GstCaps * caps)
static void
gst_rtp_L16_pay_finalize (GObject * object)
{
GstRtpL16Pay *rtpL16enc;
GstStructure *structure;
gboolean ret;
GstRtpL16Pay *rtpL16pay;
rtpL16enc = GST_RTP_L16_PAY (gst_pad_get_parent (pad));
rtpL16pay = GST_RTP_L16_PAY (object);
g_object_unref (rtpL16pay->adapter);
rtpL16pay->adapter = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
gst_rtp_L16_pay_setcaps (GstBaseRTPPayload * basepayload, GstCaps * caps)
{
GstRtpL16Pay *rtpL16pay;
GstStructure *structure;
gint channels, rate;
rtpL16pay = GST_RTP_L16_PAY (basepayload);
structure = gst_caps_get_structure (caps, 0);
ret = gst_structure_get_int (structure, "rate", &rtpL16enc->frequency);
ret &= gst_structure_get_int (structure, "channels", &rtpL16enc->channels);
/* first parse input caps */
if (!gst_structure_get_int (structure, "rate", &rate))
goto no_rate;
if (!ret) {
gst_object_unref (rtpL16enc);
return GST_PAD_LINK_REFUSED;
if (!gst_structure_get_int (structure, "channels", &channels))
goto no_channels;
gst_basertppayload_set_options (basepayload, "audio", TRUE, "L16", rate);
gst_basertppayload_set_outcaps (basepayload,
"channels", G_TYPE_INT, channels, "rate", G_TYPE_INT, rate, NULL);
return TRUE;
/* ERRORS */
no_rate:
{
GST_DEBUG_OBJECT (rtpL16pay, "no rate given");
return FALSE;
}
/* Pre-calculate what we can */
rtpL16enc->time_interval =
GST_SECOND / (2 * rtpL16enc->channels * rtpL16enc->frequency);
gst_object_unref (rtpL16enc);
return GST_PAD_LINK_OK;
}
void
gst_rtpL16pay_htons (GstBuffer * buf)
{
gint16 *i, *len;
/* FIXME: is this code correct or even sane at all? */
i = (gint16 *) GST_BUFFER_DATA (buf);
len = i + GST_BUFFER_SIZE (buf) / sizeof (gint16 *);
for (; i < len; i++) {
*i = g_htons (*i);
no_channels:
{
GST_DEBUG_OBJECT (rtpL16pay, "no channels given");
return FALSE;
}
}
static void
gst_rtpL16pay_chain (GstPad * pad, GstData * _data)
static GstFlowReturn
gst_rtp_L16_pay_handle_buffer (GstBaseRTPPayload * basepayload,
GstBuffer * buffer)
{
GstBuffer *buf = GST_BUFFER (_data);
GstRtpL16Pay *rtpL16enc;
GstRtpL16Pay *rtpL16pay;
GstFlowReturn ret;
guint size, payload_len;
GstBuffer *outbuf;
Rtp_Packet packet;
guint8 *payload, *data;
GstClockTime timestamp;
guint packet_len, mtu;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
rtpL16pay = GST_RTP_L16_PAY (basepayload);
mtu = GST_BASE_RTP_PAYLOAD_MTU (rtpL16pay);
rtpL16enc = GST_RTP_L16_PAY (GST_OBJECT_PARENT (pad));
size = GST_BUFFER_SIZE (buffer);
data = GST_BUFFER_DATA (buffer);
timestamp = GST_BUFFER_TIMESTAMP (buffer);
g_return_if_fail (rtpL16enc != NULL);
g_return_if_fail (GST_IS_RTP_L16_PAY (rtpL16enc));
GST_DEBUG_OBJECT (basepayload, "got %d bytes", size);
if (GST_IS_EVENT (buf)) {
GstEvent *event = GST_EVENT (buf);
payload_len = size;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_DISCONTINUOUS:
GST_DEBUG ("discont");
rtpL16enc->next_time = 0;
gst_pad_event_default (pad, event);
return;
default:
gst_pad_event_default (pad, event);
return;
}
}
/* get packet len to check against MTU */
packet_len = gst_rtp_buffer_calc_packet_len (payload_len, 0, 0);
/* We only need the header */
packet = rtp_packet_new_allocate (0, 0, 0);
/* now alloc output buffer */
outbuf = gst_rtp_buffer_new_allocate (payload_len, 0, 0);
rtp_packet_set_csrc_count (packet, 0);
rtp_packet_set_extension (packet, 0);
rtp_packet_set_padding (packet, 0);
rtp_packet_set_version (packet, RTP_VERSION);
rtp_packet_set_marker (packet, 0);
rtp_packet_set_ssrc (packet, g_htonl (rtpL16enc->ssrc));
rtp_packet_set_seq (packet, g_htons (rtpL16enc->seq));
rtp_packet_set_timestamp (packet,
g_htonl ((guint32) rtpL16enc->next_time / GST_SECOND));
/* get payload, this is now writable */
payload = gst_rtp_buffer_get_payload (outbuf);
if (rtpL16enc->channels == 1) {
rtp_packet_set_payload_type (packet, (guint8) PAYLOAD_L16_MONO);
}
gst_buffer_unref (buffer);
else {
rtp_packet_set_payload_type (packet, (guint8) PAYLOAD_L16_STEREO);
}
ret = gst_basertppayload_push (basepayload, outbuf);
/* FIXME: According to RFC 1890, this is required, right? */
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
gst_rtpL16pay_htons (buf);
#endif
outbuf = gst_buffer_new ();
GST_BUFFER_SIZE (outbuf) =
rtp_packet_get_packet_len (packet) + GST_BUFFER_SIZE (buf);
GST_BUFFER_DATA (outbuf) = g_malloc (GST_BUFFER_SIZE (outbuf));
GST_BUFFER_TIMESTAMP (outbuf) = rtpL16enc->next_time;
memcpy (GST_BUFFER_DATA (outbuf), packet->data,
rtp_packet_get_packet_len (packet));
memcpy (GST_BUFFER_DATA (outbuf) + rtp_packet_get_packet_len (packet),
GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
GST_DEBUG ("gst_rtpL16pay_chain: pushing buffer of size %d",
GST_BUFFER_SIZE (outbuf));
gst_pad_push (rtpL16enc->srcpad, GST_DATA (outbuf));
++rtpL16enc->seq;
rtpL16enc->next_time += rtpL16enc->time_interval * GST_BUFFER_SIZE (buf);
rtp_packet_free (packet);
gst_buffer_unref (buf);
}
static void
gst_rtpL16pay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRtpL16Pay *rtpL16enc;
g_return_if_fail (GST_IS_RTP_L16_PAY (object));
rtpL16enc = GST_RTP_L16_PAY (object);
switch (prop_id) {
default:
break;
}
}
static void
gst_rtpL16pay_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstRtpL16Pay *rtpL16enc;
g_return_if_fail (GST_IS_RTP_L16_PAY (object));
rtpL16enc = GST_RTP_L16_PAY (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
gst_rtpL16pay_change_state (GstElement * element, GstStateChange transition)
{
GstRtpL16Pay *rtpL16enc;
g_return_val_if_fail (GST_IS_RTP_L16_PAY (element), GST_STATE_CHANGE_FAILURE);
rtpL16enc = GST_RTP_L16_PAY (element);
GST_DEBUG ("state pending %d\n", GST_STATE_PENDING (element));
/* if going down into NULL state, close the file if it's open */
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
/* if we haven't failed already, give the parent class a chance to ;-) */
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
return GST_STATE_CHANGE_SUCCESS;
return ret;
}
gboolean
gst_rtpL16pay_plugin_init (GstPlugin * plugin)
gst_rtp_L16_pay_plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rtpL16enc",
return gst_element_register (plugin, "rtpL16pay",
GST_RANK_NONE, GST_TYPE_RTP_L16_PAY);
}

58
gst/rtp/gstrtpL16pay.h
View file

@ -1,5 +1,5 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* 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
@ -17,45 +17,17 @@
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_RTP_L16_PAY_H__
#define __GST_RTP_L16_PAY_H__
#include <gst/gst.h>
#include <gst/rtp/gstbasertppayload.h>
#include <gst/base/gstadapter.h>
G_BEGIN_DECLS
/* Definition of structure storing data for this element. */
typedef struct _GstRtpL16Pay GstRtpL16Pay;
struct _GstRtpL16Pay
{
GstElement element;
GstPad *sinkpad;
GstPad *srcpad;
guint frequency;
guint channels;
/* the timestamp of the next frame */
guint64 next_time;
/* the interval between frames */
guint64 time_interval;
guint32 ssrc;
guint16 seq;
};
/* Standard definition defining a class for this element. */
typedef struct _GstRtpL16PayClass GstRtpL16PayClass;
struct _GstRtpL16PayClass
{
GstElementClass parent_class;
};
/* Standard macros for defining types for this element. */
#define GST_TYPE_RTP_L16_PAY \
(gst_rtpL16pay_get_type())
(gst_rtp_L16_pay_get_type())
#define GST_RTP_L16_PAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_L16_PAY,GstRtpL16Pay))
#define GST_RTP_L16_PAY_CLASS(klass) \
@ -65,8 +37,26 @@ struct _GstRtpL16PayClass
#define GST_IS_RTP_L16_PAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_L16_PAY))
gboolean gst_rtpL16pay_plugin_init (GstPlugin * plugin);
typedef struct _GstRtpL16Pay GstRtpL16Pay;
typedef struct _GstRtpL16PayClass GstRtpL16PayClass;
struct _GstRtpL16Pay
{
GstBaseRTPPayload payload;
GstAdapter *adapter;
gint rate;
gint channels;
};
struct _GstRtpL16PayClass
{
GstBaseRTPPayloadClass parent_class;
};
gboolean gst_rtp_L16_pay_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_RTP_L16_PAY_H__ */
#endif /* __GST_RTP_L16_PAY_H__ */