Adding opus RTP payloader/depayloader element

Adding OPUS RTP module based on the current draft:
http://tools.ietf.org/id/draft-spittka-payload-rtp-opus-00.txt

https://bugzilla.gnome.org/show_bug.cgi?id=664817
This commit is contained in:
Danilo Cesar Lemes de Paula 2011-12-07 15:13:11 -02:00 committed by Vincent Penquerc'h
parent 554c64ae95
commit d5bf38d8bf
6 changed files with 392 additions and 2 deletions

View file

@ -1,6 +1,6 @@
plugin_LTLIBRARIES = libgstopus.la
libgstopus_la_SOURCES = gstopus.c gstopusdec.c gstopusenc.c gstopusparse.c gstopusheader.c gstopuscommon.c
libgstopus_la_SOURCES = gstopus.c gstopusdec.c gstopusenc.c gstopusparse.c gstopusheader.c gstopuscommon.c gstrtpopuspay.c gstrtpopusdepay.c
libgstopus_la_CFLAGS = \
-DGST_USE_UNSTABLE_API \
$(GST_PLUGINS_BASE_CFLAGS) \
@ -9,10 +9,11 @@ libgstopus_la_CFLAGS = \
libgstopus_la_LIBADD = \
-lgstaudio-$(GST_MAJORMINOR) \
$(GST_PLUGINS_BASE_LIBS) -lgsttag-$(GST_MAJORMINOR) \
-lgstrtp-@GST_MAJORMINOR@ \
$(GST_BASE_LIBS) \
$(GST_LIBS) \
$(OPUS_LIBS)
libgstopus_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) $(LIBM)
libgstopus_la_LIBTOOLFLAGS = --tag=disable-static
noinst_HEADERS = gstopusenc.h gstopusdec.h gstopusparse.h gstopusheader.h gstopuscommon.h
noinst_HEADERS = gstopusenc.h gstopusdec.h gstopusparse.h gstopusheader.h gstopuscommon.h gstrtpopuspay.h gstrtpopusdepay.h

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@ -25,6 +25,9 @@
#include "gstopusenc.h"
#include "gstopusparse.h"
#include "gstrtpopuspay.h"
#include "gstrtpopusdepay.h"
#include <gst/tag/tag.h>
static gboolean
@ -43,6 +46,14 @@ plugin_init (GstPlugin * plugin)
GST_TYPE_OPUS_PARSE))
return FALSE;
if (!gst_element_register (plugin, "rtpopusdepay", GST_RANK_NONE,
GST_TYPE_RTP_OPUS_DEPAY))
return FALSE;
if (!gst_element_register (plugin, "rtpopuspay", GST_RANK_NONE,
GST_TYPE_RTP_OPUS_PAY))
return FALSE;
gst_tag_register_musicbrainz_tags ();
return TRUE;

123
ext/opus/gstrtpopusdepay.c Normal file
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@ -0,0 +1,123 @@
/*
* Opus Depayloader Gst Element
*
* @author: Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk>
*
* 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 <stdlib.h>
#include <gst/rtp/gstrtpbuffer.h>
#include "gstrtpopusdepay.h"
GST_DEBUG_CATEGORY_STATIC (rtpopusdepay_debug);
#define GST_CAT_DEFAULT (rtpopusdepay_debug)
static GstStaticPadTemplate gst_rtp_opus_depay_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp, "
"media = (string) \"audio\", "
"payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ","
"clock-rate = (int) 48000, "
"encoding-name = (string) \"X-GST-OPUS-DRAFT-SPITTKA-00\"")
);
static GstStaticPadTemplate gst_rtp_opus_depay_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-opus")
);
static GstBuffer *gst_rtp_opus_depay_process (GstBaseRTPDepayload * depayload,
GstBuffer * buf);
static gboolean gst_rtp_opus_depay_setcaps (GstBaseRTPDepayload * depayload,
GstCaps * caps);
GST_BOILERPLATE (GstRTPOpusDepay, gst_rtp_opus_depay, GstBaseRTPDepayload,
GST_TYPE_BASE_RTP_DEPAYLOAD);
static void
gst_rtp_opus_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_opus_depay_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtp_opus_depay_sink_template));
gst_element_class_set_details_simple (element_class,
"RTP Opus packet depayloader", "Codec/Depayloader/Network/RTP",
"Extracts Opus audio from RTP packets",
"Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk>");
}
static void
gst_rtp_opus_depay_class_init (GstRTPOpusDepayClass * klass)
{
GstBaseRTPDepayloadClass *gstbasertpdepayload_class;
gstbasertpdepayload_class = (GstBaseRTPDepayloadClass *) klass;
gstbasertpdepayload_class->process = gst_rtp_opus_depay_process;
gstbasertpdepayload_class->set_caps = gst_rtp_opus_depay_setcaps;
GST_DEBUG_CATEGORY_INIT (rtpopusdepay_debug, "rtpopusdepay", 0,
"Opus RTP Depayloader");
}
static void
gst_rtp_opus_depay_init (GstRTPOpusDepay * rtpopusdepay,
GstRTPOpusDepayClass * klass)
{
}
static gboolean
gst_rtp_opus_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
{
GstCaps *srccaps;
gboolean ret;
srccaps = gst_caps_new_simple ("audio/x-opus", NULL);
ret = gst_pad_set_caps (GST_BASE_RTP_DEPAYLOAD_SRCPAD (depayload), srccaps);
GST_DEBUG_OBJECT (depayload,
"set caps on source: %" GST_PTR_FORMAT " (ret=%d)", srccaps, ret);
gst_caps_unref (srccaps);
depayload->clock_rate = 48000;
return ret;
}
static GstBuffer *
gst_rtp_opus_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
{
GstBuffer *outbuf;
outbuf = gst_rtp_buffer_get_payload_buffer (buf);
return outbuf;
}

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@ -0,0 +1,57 @@
/*
* Opus Depayloader Gst Element
*
* @author: Danilo Cesar Lemes de Paula <danilo.eu@gmail.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_OPUS_DEPAY_H__
#define __GST_RTP_OPUS_DEPAY_H__
#include <gst/gst.h>
#include <gst/rtp/gstbasertpdepayload.h>
G_BEGIN_DECLS typedef struct _GstRTPOpusDepay GstRTPOpusDepay;
typedef struct _GstRTPOpusDepayClass GstRTPOpusDepayClass;
#define GST_TYPE_RTP_OPUS_DEPAY \
(gst_rtp_opus_depay_get_type())
#define GST_RTP_OPUS_DEPAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_OPUS_DEPAY,GstRTPOpusDepay))
#define GST_RTP_OPUS_DEPAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_OPUS_DEPAY,GstRTPOpusDepayClass))
#define GST_IS_RTP_OPUS_DEPAY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_OPUS_DEPAY))
#define GST_IS_RTP_OPUS_DEPAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_OPUS_DEPAY))
struct _GstRTPOpusDepay
{
GstBaseRTPDepayload depayload;
};
struct _GstRTPOpusDepayClass
{
GstBaseRTPDepayloadClass parent_class;
};
GType gst_rtp_opus_depay_get_type (void);
G_END_DECLS
#endif /* __GST_RTP_OPUS_DEPAY_H__ */

140
ext/opus/gstrtpopuspay.c Normal file
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@ -0,0 +1,140 @@
/*
* Opus Payloader Gst Element
*
* @author: Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk>
*
* 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 "gstrtpopuspay.h"
GST_DEBUG_CATEGORY_STATIC (rtpopuspay_debug);
#define GST_CAT_DEFAULT (rtpopuspay_debug)
static GstStaticPadTemplate gst_rtp_opus_pay_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-opus")
);
static GstStaticPadTemplate gst_rtp_opus_pay_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp, "
"media = (string) \"audio\", "
"payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", "
"clock-rate = (int) 48000, "
"encoding-name = (string) \"X-GST-OPUS-DRAFT-SPITTKA-00\"")
);
static gboolean gst_rtp_opus_pay_setcaps (GstBaseRTPPayload * payload,
GstCaps * caps);
static GstFlowReturn gst_rtp_opus_pay_handle_buffer (GstBaseRTPPayload *
payload, GstBuffer * buffer);
GST_BOILERPLATE (GstRtpOPUSPay, gst_rtp_opus_pay, GstBaseRTPPayload,
GST_TYPE_BASE_RTP_PAYLOAD);
static void
gst_rtp_opus_pay_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_opus_pay_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtp_opus_pay_sink_template));
gst_element_class_set_details_simple (element_class,
"RTP Opus payloader",
"Codec/Payloader/Network/RTP",
"Puts Opus audio in RTP packets",
"Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk>");
}
static void
gst_rtp_opus_pay_class_init (GstRtpOPUSPayClass * klass)
{
GstBaseRTPPayloadClass *gstbasertppayload_class;
gstbasertppayload_class = (GstBaseRTPPayloadClass *) klass;
gstbasertppayload_class->set_caps = gst_rtp_opus_pay_setcaps;
gstbasertppayload_class->handle_buffer = gst_rtp_opus_pay_handle_buffer;
GST_DEBUG_CATEGORY_INIT (rtpopuspay_debug, "rtpopuspay", 0,
"Opus RTP Payloader");
}
static void
gst_rtp_opus_pay_init (GstRtpOPUSPay * rtpopuspay, GstRtpOPUSPayClass * klass)
{
}
static gboolean
gst_rtp_opus_pay_setcaps (GstBaseRTPPayload * payload, GstCaps * caps)
{
gboolean res;
gchar *capsstr;
capsstr = gst_caps_to_string (caps);
gst_basertppayload_set_options (payload, "audio", FALSE,
"X-GST-OPUS-DRAFT-SPITTKA-00", 48000);
res =
gst_basertppayload_set_outcaps (payload, "caps", G_TYPE_STRING, capsstr,
NULL);
g_free (capsstr);
return res;
}
static GstFlowReturn
gst_rtp_opus_pay_handle_buffer (GstBaseRTPPayload * basepayload,
GstBuffer * buffer)
{
GstBuffer *outbuf;
GstClockTime timestamp;
guint size;
guint8 *data;
guint8 *payload;
size = GST_BUFFER_SIZE (buffer);
data = GST_BUFFER_DATA (buffer);
timestamp = GST_BUFFER_TIMESTAMP (buffer);
outbuf = gst_rtp_buffer_new_allocate (size, 0, 0);
payload = gst_rtp_buffer_get_payload (outbuf);
memcpy (payload, data, size);
gst_rtp_buffer_set_marker (outbuf, FALSE);
GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
return gst_basertppayload_push (basepayload, outbuf);
}

58
ext/opus/gstrtpopuspay.h Normal file
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@ -0,0 +1,58 @@
/*
* Opus Payloader Gst Element
*
* @author: Danilo Cesar Lemes de Paula <danilo.eu@gmail.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_OPUS_PAY_H__
#define __GST_RTP_OPUS_PAY_H__
#include <gst/gst.h>
#include <gst/rtp/gstbasertppayload.h>
G_BEGIN_DECLS
#define GST_TYPE_RTP_OPUS_PAY \
(gst_rtp_opus_pay_get_type())
#define GST_RTP_OPUS_PAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_OPUS_PAY,GstRtpOPUSPay))
#define GST_RTP_OPUS_PAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_OPUS_PAY,GstRtpOPUSPayClass))
#define GST_IS_RTP_OPUS_PAY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_OPUS_PAY))
#define GST_IS_RTP_OPUS_PAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_OPUS_PAY))
typedef struct _GstRtpOPUSPay GstRtpOPUSPay;
typedef struct _GstRtpOPUSPayClass GstRtpOPUSPayClass;
struct _GstRtpOPUSPay
{
GstBaseRTPPayload payload;
};
struct _GstRtpOPUSPayClass
{
GstBaseRTPPayloadClass parent_class;
};
GType gst_rtp_opus_pay_get_type (void);
G_END_DECLS
#endif /* __GST_RTP_OPUS_PAY_H__ */