Commit d39c057e authored by Edward Hervey's avatar Edward Hervey

rtp: New QDM2 rtp depayloader.

Reverse-engineered by comparing:
* A rtp hinted file provided by DarwinStreamingServer
* The output procued by DSS for that same file

Also used various streaming sources available on the internet to fine-tune
the code.

The header/codec_data extraction methods are from FFMpeg (LGPL).
parent e2b3665a
......@@ -50,6 +50,7 @@ libgstrtp_la_SOURCES = \
gstrtpmp4gpay.c \
gstrtpmp4adepay.c \
gstrtpmp4apay.c \
gstrtpqdmdepay.c \
gstrtpsirenpay.c \
gstrtpsirendepay.c \
gstrtpspeexdepay.c \
......@@ -127,6 +128,7 @@ noinst_HEADERS = \
gstrtpmp4apay.h \
gstrtpdepay.h \
gstasteriskh263.h \
gstrtpqdmdepay.h \
gstrtpsirenpay.h \
gstrtpsirendepay.h \
gstrtpspeexdepay.h \
......
......@@ -67,6 +67,7 @@
#include "gstrtpmp4apay.h"
#include "gstrtpmp4gdepay.h"
#include "gstrtpmp4gpay.h"
#include "gstrtpqdmdepay.h"
#include "gstrtpsirenpay.h"
#include "gstrtpsirendepay.h"
#include "gstrtpspeexpay.h"
......@@ -220,6 +221,9 @@ plugin_init (GstPlugin * plugin)
if (!gst_rtp_mp4g_pay_plugin_init (plugin))
return FALSE;
if (!gst_rtp_qdm2_depay_plugin_init (plugin))
return FALSE;
if (!gst_rtp_siren_pay_plugin_init (plugin))
return FALSE;
......
This diff is collapsed.
/* GStreamer
* Copyright (C) <2009> Edward Hervey <bilboed@bilboed.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_QDM2_DEPAY_H__
#define __GST_RTP_QDM2_DEPAY_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
#include <gst/rtp/gstbasertpdepayload.h>
G_BEGIN_DECLS
#define GST_TYPE_RTP_QDM2_DEPAY \
(gst_rtp_qdm2_depay_get_type())
#define GST_RTP_QDM2_DEPAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_QDM2_DEPAY,GstRtpQDM2Depay))
#define GST_RTP_QDM2_DEPAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_QDM2_DEPAY,GstRtpQDM2DepayClass))
#define GST_IS_RTP_QDM2_DEPAY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_QDM2_DEPAY))
#define GST_IS_RTP_QDM2_DEPAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_QDM2_DEPAY))
typedef struct _GstRtpQDM2Depay GstRtpQDM2Depay;
typedef struct _GstRtpQDM2DepayClass GstRtpQDM2DepayClass;
typedef struct _QDM2Packet {
guint8* data;
guint offs; /* Starts at 4 to give room for the prefix */
} QDM2Packet;
#define MAX_SCRAMBLED_PACKETS 64
struct _GstRtpQDM2Depay
{
GstBaseRTPDepayload depayload;
GstAdapter *adapter;
gboolean configured;
GstClockTime timestamp; /* Timestamp of current incoming data */
GstClockTime ptimestamp; /* Timestamp of data stored in the adapter */
guint32 channs;
guint32 samplerate;
guint32 bitrate;
guint32 blocksize;
guint32 framesize;
guint32 packetsize;
guint nbpackets; /* Number of packets to unscramble */
QDM2Packet *packets[MAX_SCRAMBLED_PACKETS];
};
struct _GstRtpQDM2DepayClass
{
GstBaseRTPDepayloadClass parent_class;
};
gboolean gst_rtp_qdm2_depay_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_RTP_QDM2_DEPAY_H__ */
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