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G711 payloader and depayloader created by Edgard Lima (it supports mulaw and alaw (dec)encoders)

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Original commit message from CVS:
G711 payloader and depayloader created by Edgard Lima (it supports
mulaw and alaw (dec)encoders)
This commit is contained in:
Flavio Oliveira 2005-10-25 19:19:38 +00:00
parent cfea44dba3
commit c12772c616
11 changed files with 1247 additions and 0 deletions
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11
ChangeLog
View file

@ -1,3 +1,14 @@
2005-10-25 Edgard Lima <edgard.lima@indt.org.br>
* gst/rtp/Makefile.am
* gst/rtp/gstrtp.c
* gst/rtp/gstrtpg711enc.c
* gst/rtp/gstrtpg711enc.h
* gst/rtp/gstrtpg711dec.c
* gst/rtp/gstrtpg711dec.h
Created G711 payloader and depayloader (it supports mulaw and alaw
(dec)encoders)
2005-10-25 Julien MOUTTE <julien@moutte.net>
* gst/videobox/gstvideobox.c: (gst_video_box_class_init),

4
gst/rtp/Makefile.am
View file

@ -4,6 +4,8 @@ libgstrtp_la_SOURCES = gstrtp.c \
gstrtpdec.c \
gstrtpmpadec.c \
gstrtpmpaenc.c \
gstrtpg711enc.c \
gstrtpg711dec.c \
gstrtpgsmenc.c \
gstrtpgsmparse.c \
gstrtpamrdec.c \
@ -26,6 +28,8 @@ noinst_HEADERS = gstrtpL16enc.h \
gstrtpL16parse.h \
gstrtpamrdec.h \
gstrtpamrenc.h \
gstrtpg711enc.h \
gstrtpg711dec.h \
gstrtpgsmenc.h \
gstrtpgsmparse.h \
gstrtpmpadec.h \

8
gst/rtp/gstrtp.c
View file

@ -22,6 +22,8 @@
#endif
#include "gstrtpdec.h"
#include "gstrtpg711enc.h"
#include "gstrtpg711dec.h"
#include "gstrtpgsmenc.h"
#include "gstrtpgsmparse.h"
#include "gstrtpamrenc.h"
@ -53,6 +55,12 @@ plugin_init (GstPlugin * plugin)
if (!gst_rtpamrenc_plugin_init (plugin))
return FALSE;
if (!gst_rtpg711dec_plugin_init (plugin))
return FALSE;
if (!gst_rtpg711enc_plugin_init (plugin))
return FALSE;
if (!gst_rtpmpadec_plugin_init (plugin))
return FALSE;

307
gst/rtp/gstrtpg711dec.c Normal file
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@ -0,0 +1,307 @@
/* GStreamer
* Copyright (C) <2005> Edgard Lima <edgard.lima@indt.org.br>
*
* 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 "gstrtpg711dec.h"
/* elementfactory information */
static GstElementDetails gst_rtp_g711dec_details = {
"RTP packet parser",
"Codec/Parser/Network",
"Extracts PCMU/PCMA audio from RTP packets",
"Edgard Lima <edgard.lima@indt.org.br>"
};
/* RtpG711Dec signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0
};
static GstStaticPadTemplate gst_rtpg711dec_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp, "
"media = (string) \"audio\", "
"payload = (int) 0, "
"clock-rate = (int) 8000, "
"encoding-name = (string) \"PCMU\"; "
"application/x-rtp, "
"media = (string) \"audio\", "
"payload = (int) 8, "
"clock-rate = (int) 8000, " "encoding-name = (string) \"PCMA\"")
);
static GstStaticPadTemplate gst_rtpg711dec_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-mulaw, channels = (int) 1; "
"audio/x-alaw, channels = (int) 1")
);
static void gst_rtpg711dec_class_init (GstRtpG711DecClass * klass);
static void gst_rtpg711dec_base_init (GstRtpG711DecClass * klass);
static void gst_rtpg711dec_init (GstRtpG711Dec * rtpg711dec);
static gboolean gst_rtpg711dec_sink_setcaps (GstPad * pad, GstCaps * caps);
static GstFlowReturn gst_rtpg711dec_chain (GstPad * pad, GstBuffer * buffer);
static void gst_rtpg711dec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_rtpg711dec_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstStateChangeReturn gst_rtpg711dec_change_state (GstElement * element,
GstStateChange transition);
static GstElementClass *parent_class = NULL;
static GType
gst_rtpg711dec_get_type (void)
{
static GType rtpg711dec_type = 0;
if (!rtpg711dec_type) {
static const GTypeInfo rtpg711dec_info = {
sizeof (GstRtpG711DecClass),
(GBaseInitFunc) gst_rtpg711dec_base_init,
NULL,
(GClassInitFunc) gst_rtpg711dec_class_init,
NULL,
NULL,
sizeof (GstRtpG711Dec),
0,
(GInstanceInitFunc) gst_rtpg711dec_init,
};
rtpg711dec_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstRtpG711Dec",
&rtpg711dec_info, 0);
}
return rtpg711dec_type;
}
static void
gst_rtpg711dec_base_init (GstRtpG711DecClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpg711dec_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpg711dec_sink_template));
gst_element_class_set_details (element_class, &gst_rtp_g711dec_details);
}
static void
gst_rtpg711dec_class_init (GstRtpG711DecClass * 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_rtpg711dec_set_property;
gobject_class->get_property = gst_rtpg711dec_get_property;
gstelement_class->change_state = gst_rtpg711dec_change_state;
}
static void
gst_rtpg711dec_init (GstRtpG711Dec * rtpg711dec)
{
rtpg711dec->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpg711dec_src_template), "src");
rtpg711dec->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpg711dec_sink_template), "sink");
gst_element_add_pad (GST_ELEMENT (rtpg711dec), rtpg711dec->srcpad);
gst_pad_set_setcaps_function (rtpg711dec->sinkpad,
gst_rtpg711dec_sink_setcaps);
gst_element_add_pad (GST_ELEMENT (rtpg711dec), rtpg711dec->sinkpad);
gst_pad_set_chain_function (rtpg711dec->sinkpad, gst_rtpg711dec_chain);
}
static gboolean
gst_rtpg711dec_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstCaps *srccaps;
GstRtpG711Dec *rtpg711dec;
const gchar *enc_name;
GstStructure *structure;
structure = gst_caps_get_structure (caps, 0);
enc_name = gst_structure_get_name (structure);
enc_name = gst_structure_get_string (structure, "encoding-name");
if (NULL == enc_name) {
return FALSE;
}
if (0 == strcmp ("PCMU", enc_name)) {
srccaps = gst_caps_new_simple ("audio/x-mulaw",
"channels", G_TYPE_INT, 1, "rate", G_TYPE_INT, 8000, NULL);
} else if (0 == strcmp ("PCMA", enc_name)) {
srccaps = gst_caps_new_simple ("audio/x-alaw",
"channels", G_TYPE_INT, 1, "rate", G_TYPE_INT, 8000, NULL);
} else {
return FALSE;
}
rtpg711dec = GST_RTP_G711_DEC (GST_OBJECT_PARENT (pad));
srccaps = gst_caps_new_simple ("audio/x-mulaw",
"channels", G_TYPE_INT, 1, "rate", G_TYPE_INT, 8000, NULL);
gst_pad_set_caps (rtpg711dec->srcpad, srccaps);
gst_caps_unref (srccaps);
return TRUE;
}
static GstFlowReturn
gst_rtpg711dec_chain (GstPad * pad, GstBuffer * buf)
{
GstRtpG711Dec *rtpg711dec;
GstBuffer *outbuf;
GstFlowReturn ret;
rtpg711dec = GST_RTP_G711_DEC (gst_pad_get_parent (pad));
if (!gst_rtpbuffer_validate (buf))
goto bad_packet;
{
gint payload_len;
guint8 *payload;
guint32 timestamp;
static guint32 firstTS = -1;
payload_len = gst_rtpbuffer_get_payload_len (buf);
payload = gst_rtpbuffer_get_payload (buf);
timestamp = gst_rtpbuffer_get_timestamp (buf);
if (firstTS == -1) {
firstTS = gst_rtpbuffer_get_timestamp (buf);
}
timestamp = gst_rtpbuffer_get_timestamp (buf) - firstTS;
outbuf = gst_buffer_new_and_alloc (payload_len);
GST_BUFFER_TIMESTAMP (outbuf) = timestamp * GST_SECOND / 8000;
memcpy (GST_BUFFER_DATA (outbuf), payload, payload_len);
GST_DEBUG ("pushing buffer of size %d", GST_BUFFER_SIZE (outbuf));
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (rtpg711dec->srcpad));
gst_buffer_unref (buf);
ret = gst_pad_push (rtpg711dec->srcpad, outbuf);
}
return ret;
bad_packet:
{
GST_DEBUG ("Packet did not validate");
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
}
static void
gst_rtpg711dec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRtpG711Dec *rtpg711dec;
rtpg711dec = GST_RTP_G711_DEC (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_rtpg711dec_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstRtpG711Dec *rtpg711dec;
rtpg711dec = GST_RTP_G711_DEC (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
gst_rtpg711dec_change_state (GstElement * element, GstStateChange transition)
{
GstRtpG711Dec *rtpg711dec;
GstStateChangeReturn ret;
rtpg711dec = GST_RTP_G711_DEC (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
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_rtpg711dec_plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rtpg711dec",
GST_RANK_NONE, GST_TYPE_RTP_G711_DEC);
}

53
gst/rtp/gstrtpg711dec.h Normal file
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@ -0,0 +1,53 @@
/* GStreamer
* Copyright (C) <2005> Edgard Lima <edgard.lima@indt.org.br>
*
* 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
*/
#ifndef __GST_RTP_G711_DEC_H__
#define __GST_RTP_G711_DEC_H__
#include <gst/gst.h>
G_BEGIN_DECLS
typedef struct _GstRtpG711Dec GstRtpG711Dec;
typedef struct _GstRtpG711DecClass GstRtpG711DecClass;
#define GST_TYPE_RTP_G711_DEC \
(gst_rtpg711dec_get_type())
#define GST_RTP_G711_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_G711_DEC,GstRtpG711Dec))
#define GST_RTP_G711_DEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_G711_DEC,GstRtpG711Dec))
#define GST_IS_RTP_G711_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_G711_DEC))
#define GST_IS_RTP_G711_DEC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_G711_DEC))
struct _GstRtpG711Dec
{
GstElement element;
GstPad *sinkpad;
GstPad *srcpad;
};
struct _GstRtpG711DecClass
{
GstElementClass parent_class;
};
gboolean gst_rtpg711dec_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_RTP_G711_DEC_H__ */

307
gst/rtp/gstrtpg711depay.c Normal file
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@ -0,0 +1,307 @@
/* GStreamer
* Copyright (C) <2005> Edgard Lima <edgard.lima@indt.org.br>
*
* 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 "gstrtpg711dec.h"
/* elementfactory information */
static GstElementDetails gst_rtp_g711dec_details = {
"RTP packet parser",
"Codec/Parser/Network",
"Extracts PCMU/PCMA audio from RTP packets",
"Edgard Lima <edgard.lima@indt.org.br>"
};
/* RtpG711Dec signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0
};
static GstStaticPadTemplate gst_rtpg711dec_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp, "
"media = (string) \"audio\", "
"payload = (int) 0, "
"clock-rate = (int) 8000, "
"encoding-name = (string) \"PCMU\"; "
"application/x-rtp, "
"media = (string) \"audio\", "
"payload = (int) 8, "
"clock-rate = (int) 8000, " "encoding-name = (string) \"PCMA\"")
);
static GstStaticPadTemplate gst_rtpg711dec_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-mulaw, channels = (int) 1; "
"audio/x-alaw, channels = (int) 1")
);
static void gst_rtpg711dec_class_init (GstRtpG711DecClass * klass);
static void gst_rtpg711dec_base_init (GstRtpG711DecClass * klass);
static void gst_rtpg711dec_init (GstRtpG711Dec * rtpg711dec);
static gboolean gst_rtpg711dec_sink_setcaps (GstPad * pad, GstCaps * caps);
static GstFlowReturn gst_rtpg711dec_chain (GstPad * pad, GstBuffer * buffer);
static void gst_rtpg711dec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_rtpg711dec_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstStateChangeReturn gst_rtpg711dec_change_state (GstElement * element,
GstStateChange transition);
static GstElementClass *parent_class = NULL;
static GType
gst_rtpg711dec_get_type (void)
{
static GType rtpg711dec_type = 0;
if (!rtpg711dec_type) {
static const GTypeInfo rtpg711dec_info = {
sizeof (GstRtpG711DecClass),
(GBaseInitFunc) gst_rtpg711dec_base_init,
NULL,
(GClassInitFunc) gst_rtpg711dec_class_init,
NULL,
NULL,
sizeof (GstRtpG711Dec),
0,
(GInstanceInitFunc) gst_rtpg711dec_init,
};
rtpg711dec_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstRtpG711Dec",
&rtpg711dec_info, 0);
}
return rtpg711dec_type;
}
static void
gst_rtpg711dec_base_init (GstRtpG711DecClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpg711dec_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpg711dec_sink_template));
gst_element_class_set_details (element_class, &gst_rtp_g711dec_details);
}
static void
gst_rtpg711dec_class_init (GstRtpG711DecClass * 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_rtpg711dec_set_property;
gobject_class->get_property = gst_rtpg711dec_get_property;
gstelement_class->change_state = gst_rtpg711dec_change_state;
}
static void
gst_rtpg711dec_init (GstRtpG711Dec * rtpg711dec)
{
rtpg711dec->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpg711dec_src_template), "src");
rtpg711dec->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rtpg711dec_sink_template), "sink");
gst_element_add_pad (GST_ELEMENT (rtpg711dec), rtpg711dec->srcpad);
gst_pad_set_setcaps_function (rtpg711dec->sinkpad,
gst_rtpg711dec_sink_setcaps);
gst_element_add_pad (GST_ELEMENT (rtpg711dec), rtpg711dec->sinkpad);
gst_pad_set_chain_function (rtpg711dec->sinkpad, gst_rtpg711dec_chain);
}
static gboolean
gst_rtpg711dec_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstCaps *srccaps;
GstRtpG711Dec *rtpg711dec;
const gchar *enc_name;
GstStructure *structure;
structure = gst_caps_get_structure (caps, 0);
enc_name = gst_structure_get_name (structure);
enc_name = gst_structure_get_string (structure, "encoding-name");
if (NULL == enc_name) {
return FALSE;
}
if (0 == strcmp ("PCMU", enc_name)) {
srccaps = gst_caps_new_simple ("audio/x-mulaw",
"channels", G_TYPE_INT, 1, "rate", G_TYPE_INT, 8000, NULL);
} else if (0 == strcmp ("PCMA", enc_name)) {
srccaps = gst_caps_new_simple ("audio/x-alaw",
"channels", G_TYPE_INT, 1, "rate", G_TYPE_INT, 8000, NULL);
} else {
return FALSE;
}
rtpg711dec = GST_RTP_G711_DEC (GST_OBJECT_PARENT (pad));
srccaps = gst_caps_new_simple ("audio/x-mulaw",
"channels", G_TYPE_INT, 1, "rate", G_TYPE_INT, 8000, NULL);
gst_pad_set_caps (rtpg711dec->srcpad, srccaps);
gst_caps_unref (srccaps);
return TRUE;
}
static GstFlowReturn
gst_rtpg711dec_chain (GstPad * pad, GstBuffer * buf)
{
GstRtpG711Dec *rtpg711dec;
GstBuffer *outbuf;
GstFlowReturn ret;
rtpg711dec = GST_RTP_G711_DEC (gst_pad_get_parent (pad));
if (!gst_rtpbuffer_validate (buf))
goto bad_packet;
{
gint payload_len;
guint8 *payload;
guint32 timestamp;
static guint32 firstTS = -1;
payload_len = gst_rtpbuffer_get_payload_len (buf);
payload = gst_rtpbuffer_get_payload (buf);
timestamp = gst_rtpbuffer_get_timestamp (buf);
if (firstTS == -1) {
firstTS = gst_rtpbuffer_get_timestamp (buf);
}
timestamp = gst_rtpbuffer_get_timestamp (buf) - firstTS;
outbuf = gst_buffer_new_and_alloc (payload_len);
GST_BUFFER_TIMESTAMP (outbuf) = timestamp * GST_SECOND / 8000;
memcpy (GST_BUFFER_DATA (outbuf), payload, payload_len);
GST_DEBUG ("pushing buffer of size %d", GST_BUFFER_SIZE (outbuf));
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (rtpg711dec->srcpad));
gst_buffer_unref (buf);
ret = gst_pad_push (rtpg711dec->srcpad, outbuf);
}
return ret;
bad_packet:
{
GST_DEBUG ("Packet did not validate");
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
}
static void
gst_rtpg711dec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstRtpG711Dec *rtpg711dec;
rtpg711dec = GST_RTP_G711_DEC (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_rtpg711dec_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstRtpG711Dec *rtpg711dec;
rtpg711dec = GST_RTP_G711_DEC (object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
gst_rtpg711dec_change_state (GstElement * element, GstStateChange transition)
{
GstRtpG711Dec *rtpg711dec;
GstStateChangeReturn ret;
rtpg711dec = GST_RTP_G711_DEC (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
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_rtpg711dec_plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rtpg711dec",
GST_RANK_NONE, GST_TYPE_RTP_G711_DEC);
}

53
gst/rtp/gstrtpg711depay.h Normal file
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@ -0,0 +1,53 @@
/* GStreamer
* Copyright (C) <2005> Edgard Lima <edgard.lima@indt.org.br>
*
* 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
*/
#ifndef __GST_RTP_G711_DEC_H__
#define __GST_RTP_G711_DEC_H__
#include <gst/gst.h>
G_BEGIN_DECLS
typedef struct _GstRtpG711Dec GstRtpG711Dec;
typedef struct _GstRtpG711DecClass GstRtpG711DecClass;
#define GST_TYPE_RTP_G711_DEC \
(gst_rtpg711dec_get_type())
#define GST_RTP_G711_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_G711_DEC,GstRtpG711Dec))
#define GST_RTP_G711_DEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_G711_DEC,GstRtpG711Dec))
#define GST_IS_RTP_G711_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_G711_DEC))
#define GST_IS_RTP_G711_DEC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_G711_DEC))
struct _GstRtpG711Dec
{
GstElement element;
GstPad *sinkpad;
GstPad *srcpad;
};
struct _GstRtpG711DecClass
{
GstElementClass parent_class;
};
gboolean gst_rtpg711dec_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_RTP_G711_DEC_H__ */

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/* GStreamer
* Copyright (C) <2005> Edgard Lima <edgard.lima@indt.org.br>
*
* 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 <stdlib.h>
#include <string.h>
#include <gst/rtp/gstrtpbuffer.h>
#include "gstrtpg711enc.h"
/* elementfactory information */
static GstElementDetails gst_rtpg711enc_details = {
"RTP packet parser",
"Codec/Encoder/Network",
"Encodes PCMU/PCMA audio into a RTP packet",
"Edgard Lima <edgard.lima@indt.org.br>"
};
static GstStaticPadTemplate gst_rtpg711enc_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-mulaw, channels=(int)1, rate=(int)8000 ;"
"audio/x-alaw, channels=(int)1, rate=(int)8000")
);
static GstStaticPadTemplate gst_rtpg711enc_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp, "
"media = (string) \"audio\", "
"payload = (int) 0, "
"clock-rate = (int) 8000, "
"encoding-name = (string) \"PCMU\"; "
"application/x-rtp, "
"media = (string) \"audio\", "
"payload = (int) 8, "
"clock-rate = (int) 8000, " "encoding-name = (string) \"PCMA\"")
);
static void gst_rtpg711enc_class_init (GstRtpG711EncClass * klass);
static void gst_rtpg711enc_base_init (GstRtpG711EncClass * klass);
static void gst_rtpg711enc_init (GstRtpG711Enc * rtpg711enc);
static gboolean gst_rtpg711enc_setcaps (GstBaseRTPPayload * payload,
GstCaps * caps);
static GstFlowReturn gst_rtpg711enc_handle_buffer (GstBaseRTPPayload * payload,
GstBuffer * buffer);
static GstBaseRTPPayloadClass *parent_class = NULL;
static GType
gst_rtpg711enc_get_type (void)
{
static GType rtpg711enc_type = 0;
if (!rtpg711enc_type) {
static const GTypeInfo rtpg711enc_info = {
sizeof (GstRtpG711EncClass),
(GBaseInitFunc) gst_rtpg711enc_base_init,
NULL,
(GClassInitFunc) gst_rtpg711enc_class_init,
NULL,
NULL,
sizeof (GstRtpG711Enc),
0,
(GInstanceInitFunc) gst_rtpg711enc_init,
};
rtpg711enc_type =
g_type_register_static (GST_TYPE_BASE_RTP_PAYLOAD, "GstRtpG711Enc",
&rtpg711enc_info, 0);
}
return rtpg711enc_type;
}
static void
gst_rtpg711enc_base_init (GstRtpG711EncClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpg711enc_sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpg711enc_src_template));
gst_element_class_set_details (element_class, &gst_rtpg711enc_details);
}
static void
gst_rtpg711enc_class_init (GstRtpG711EncClass * 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_ref (GST_TYPE_BASE_RTP_PAYLOAD);
gstbasertppayload_class->set_caps = gst_rtpg711enc_setcaps;
gstbasertppayload_class->handle_buffer = gst_rtpg711enc_handle_buffer;
}
static void
gst_rtpg711enc_init (GstRtpG711Enc * rtpg711enc)
{
}
static gboolean
gst_rtpg711enc_setcaps (GstBaseRTPPayload * payload, GstCaps * caps)
{
const char *stname;
GstStructure *structure;
structure = gst_caps_get_structure (caps, 0);
stname = gst_structure_get_name (structure);
if (0 == strcmp ("audio/x-mulaw", stname)) {
gst_basertppayload_set_options (payload, "audio", TRUE, "PCMU", 8000);
} else if (0 == strcmp ("audio/x-alaw", stname)) {
gst_basertppayload_set_options (payload, "audio", TRUE, "PCMA", 8000);
} else {
return FALSE;
}
gst_basertppayload_set_outcaps (payload, NULL);
return TRUE;
}
static GstFlowReturn
gst_rtpg711enc_handle_buffer (GstBaseRTPPayload * basepayload,
GstBuffer * buffer)
{
GstRtpG711Enc *rtpg711enc;
guint size, payload_len;
GstBuffer *outbuf;
guint8 *payload, *data;
GstClockTime timestamp;
GstFlowReturn ret;
rtpg711enc = GST_RTP_G711_ENC (basepayload);
size = GST_BUFFER_SIZE (buffer);
timestamp = GST_BUFFER_TIMESTAMP (buffer);
/* FIXME, only one G711 frame per RTP packet for now */
payload_len = size;
outbuf = gst_rtpbuffer_new_allocate (payload_len, 0, 0);
/* FIXME, assert for now */
g_assert (GST_BUFFER_SIZE (outbuf) < GST_BASE_RTP_PAYLOAD_MTU (rtpg711enc));
gst_rtpbuffer_set_timestamp (outbuf, timestamp * 8000 / GST_SECOND);
/* copy timestamp */
GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
/* get payload */
payload = gst_rtpbuffer_get_payload (outbuf);
data = GST_BUFFER_DATA (buffer);
/* copy data in payload */
memcpy (&payload[0], data, size);
gst_buffer_unref (buffer);
ret = gst_basertppayload_push (basepayload, outbuf);
return ret;
}
gboolean
gst_rtpg711enc_plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rtpg711enc",
GST_RANK_NONE, GST_TYPE_RTP_G711_ENC);
}

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/* GStreamer
* Copyright (C) <2005> Edgard Lima <edgard.lima@indt.org.br>
*
* 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
*/
#ifndef __GST_RTP_G711_ENC_H__
#define __GST_RTP_G711_ENC_H__
#include <gst/gst.h>
#include <gst/rtp/gstbasertppayload.h>
G_BEGIN_DECLS
typedef struct _GstRtpG711Enc GstRtpG711Enc;
typedef struct _GstRtpG711EncClass GstRtpG711EncClass;
#define GST_TYPE_RTP_G711_ENC \
(gst_rtpg711enc_get_type())
#define GST_RTP_G711_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_G711_ENC,GstRtpG711Enc))
#define GST_RTP_G711_ENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_G711_ENC,GstRtpG711Enc))
#define GST_IS_RTP_G711_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_G711_ENC))
#define GST_IS_RTP_G711_ENC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_G711_ENC))
struct _GstRtpG711Enc
{
GstBaseRTPPayload payload;
gint frequency;
};
struct _GstRtpG711EncClass
{
GstBaseRTPPayloadClass parent_class;
};
gboolean gst_rtpg711enc_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_RTP_G711_ENC_H__ */

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/* GStreamer
* Copyright (C) <2005> Edgard Lima <edgard.lima@indt.org.br>
*
* 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 <stdlib.h>
#include <string.h>
#include <gst/rtp/gstrtpbuffer.h>
#include "gstrtpg711enc.h"
/* elementfactory information */
static GstElementDetails gst_rtpg711enc_details = {
"RTP packet parser",
"Codec/Encoder/Network",
"Encodes PCMU/PCMA audio into a RTP packet",
"Edgard Lima <edgard.lima@indt.org.br>"
};
static GstStaticPadTemplate gst_rtpg711enc_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-mulaw, channels=(int)1, rate=(int)8000 ;"
"audio/x-alaw, channels=(int)1, rate=(int)8000")
);
static GstStaticPadTemplate gst_rtpg711enc_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp, "
"media = (string) \"audio\", "
"payload = (int) 0, "
"clock-rate = (int) 8000, "
"encoding-name = (string) \"PCMU\"; "
"application/x-rtp, "
"media = (string) \"audio\", "
"payload = (int) 8, "
"clock-rate = (int) 8000, " "encoding-name = (string) \"PCMA\"")
);
static void gst_rtpg711enc_class_init (GstRtpG711EncClass * klass);
static void gst_rtpg711enc_base_init (GstRtpG711EncClass * klass);
static void gst_rtpg711enc_init (GstRtpG711Enc * rtpg711enc);
static gboolean gst_rtpg711enc_setcaps (GstBaseRTPPayload * payload,
GstCaps * caps);
static GstFlowReturn gst_rtpg711enc_handle_buffer (GstBaseRTPPayload * payload,
GstBuffer * buffer);
static GstBaseRTPPayloadClass *parent_class = NULL;
static GType
gst_rtpg711enc_get_type (void)
{
static GType rtpg711enc_type = 0;
if (!rtpg711enc_type) {
static const GTypeInfo rtpg711enc_info = {
sizeof (GstRtpG711EncClass),
(GBaseInitFunc) gst_rtpg711enc_base_init,
NULL,
(GClassInitFunc) gst_rtpg711enc_class_init,
NULL,
NULL,
sizeof (GstRtpG711Enc),
0,
(GInstanceInitFunc) gst_rtpg711enc_init,
};
rtpg711enc_type =
g_type_register_static (GST_TYPE_BASE_RTP_PAYLOAD, "GstRtpG711Enc",
&rtpg711enc_info, 0);
}
return rtpg711enc_type;
}
static void
gst_rtpg711enc_base_init (GstRtpG711EncClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpg711enc_sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtpg711enc_src_template));
gst_element_class_set_details (element_class, &gst_rtpg711enc_details);
}
static void
gst_rtpg711enc_class_init (GstRtpG711EncClass * 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_ref (GST_TYPE_BASE_RTP_PAYLOAD);
gstbasertppayload_class->set_caps = gst_rtpg711enc_setcaps;
gstbasertppayload_class->handle_buffer = gst_rtpg711enc_handle_buffer;
}
static void
gst_rtpg711enc_init (GstRtpG711Enc * rtpg711enc)
{
}
static gboolean
gst_rtpg711enc_setcaps (GstBaseRTPPayload * payload, GstCaps * caps)
{
const char *stname;
GstStructure *structure;
structure = gst_caps_get_structure (caps, 0);
stname = gst_structure_get_name (structure);
if (0 == strcmp ("audio/x-mulaw", stname)) {
gst_basertppayload_set_options (payload, "audio", TRUE, "PCMU", 8000);
} else if (0 == strcmp ("audio/x-alaw", stname)) {
gst_basertppayload_set_options (payload, "audio", TRUE, "PCMA", 8000);
} else {
return FALSE;
}
gst_basertppayload_set_outcaps (payload, NULL);
return TRUE;
}
static GstFlowReturn
gst_rtpg711enc_handle_buffer (GstBaseRTPPayload * basepayload,
GstBuffer * buffer)
{
GstRtpG711Enc *rtpg711enc;
guint size, payload_len;
GstBuffer *outbuf;
guint8 *payload, *data;
GstClockTime timestamp;
GstFlowReturn ret;
rtpg711enc = GST_RTP_G711_ENC (basepayload);
size = GST_BUFFER_SIZE (buffer);
timestamp = GST_BUFFER_TIMESTAMP (buffer);
/* FIXME, only one G711 frame per RTP packet for now */
payload_len = size;
outbuf = gst_rtpbuffer_new_allocate (payload_len, 0, 0);
/* FIXME, assert for now */
g_assert (GST_BUFFER_SIZE (outbuf) < GST_BASE_RTP_PAYLOAD_MTU (rtpg711enc));
gst_rtpbuffer_set_timestamp (outbuf, timestamp * 8000 / GST_SECOND);
/* copy timestamp */
GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
/* get payload */
payload = gst_rtpbuffer_get_payload (outbuf);
data = GST_BUFFER_DATA (buffer);
/* copy data in payload */
memcpy (&payload[0], data, size);
gst_buffer_unref (buffer);
ret = gst_basertppayload_push (basepayload, outbuf);
return ret;
}
gboolean
gst_rtpg711enc_plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rtpg711enc",
GST_RANK_NONE, GST_TYPE_RTP_G711_ENC);
}

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/* GStreamer
* Copyright (C) <2005> Edgard Lima <edgard.lima@indt.org.br>
*
* 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
*/
#ifndef __GST_RTP_G711_ENC_H__
#define __GST_RTP_G711_ENC_H__
#include <gst/gst.h>
#include <gst/rtp/gstbasertppayload.h>
G_BEGIN_DECLS
typedef struct _GstRtpG711Enc GstRtpG711Enc;
typedef struct _GstRtpG711EncClass GstRtpG711EncClass;
#define GST_TYPE_RTP_G711_ENC \
(gst_rtpg711enc_get_type())
#define GST_RTP_G711_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_G711_ENC,GstRtpG711Enc))
#define GST_RTP_G711_ENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_G711_ENC,GstRtpG711Enc))
#define GST_IS_RTP_G711_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_G711_ENC))
#define GST_IS_RTP_G711_ENC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_G711_ENC))
struct _GstRtpG711Enc
{
GstBaseRTPPayload payload;
gint frequency;
};
struct _GstRtpG711EncClass
{
GstBaseRTPPayloadClass parent_class;
};
gboolean gst_rtpg711enc_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_RTP_G711_ENC_H__ */