mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-03 13:16:04 +00:00
rtp: add BroadcomVoice depayloader
This commit is contained in:
Wim Taymans
parent
039d225a78
commit
8c3b03de26
|
|
@ -6,6 +6,7 @@ libgstrtp_la_SOURCES = \
|
|||
gstrtpchannels.c \
|
||||
gstrtpdepay.c \
|
||||
gstrtpac3depay.c \
|
||||
gstrtpbvdepay.c \
|
||||
gstrtpbvpay.c \
|
||||
gstrtpceltdepay.c \
|
||||
gstrtpceltpay.c \
|
||||
|
|
@ -86,6 +87,7 @@ noinst_HEADERS = \
|
|||
gstrtpL16depay.h \
|
||||
gstrtpL16pay.h \
|
||||
gstrtpac3depay.h \
|
||||
gstrtpbvdepay.h \
|
||||
gstrtpbvpay.h \
|
||||
gstrtpceltpay.h \
|
||||
gstrtpceltdepay.h \
|
||||
|
|
|
|||
|
|
@ -23,6 +23,7 @@
|
|||
|
||||
#include "gstrtpdepay.h"
|
||||
#include "gstrtpac3depay.h"
|
||||
#include "gstrtpbvdepay.h"
|
||||
#include "gstrtpbvpay.h"
|
||||
#include "gstrtpceltdepay.h"
|
||||
#include "gstrtpceltpay.h"
|
||||
|
|
@ -90,6 +91,9 @@ plugin_init (GstPlugin * plugin)
|
|||
if (!gst_rtp_ac3_depay_plugin_init (plugin))
|
||||
return FALSE;
|
||||
|
||||
if (!gst_rtp_bv_depay_plugin_init (plugin))
|
||||
return FALSE;
|
||||
|
||||
if (!gst_rtp_bv_pay_plugin_init (plugin))
|
||||
return FALSE;
|
||||
|
||||
|
|
|
|||
187
gst/rtp/gstrtpbvdepay.c
Normal file
187
gst/rtp/gstrtpbvdepay.c
Normal file
|
|
@ -0,0 +1,187 @@
|
|||
/* GStreamer
|
||||
* Copyright (C) <2009> Wim Taymans <wim.taymans@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.
|
||||
*/
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
# include "config.h"
|
||||
#endif
|
||||
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#include <gst/rtp/gstrtpbuffer.h>
|
||||
#include "gstrtpbvdepay.h"
|
||||
|
||||
/* elementfactory information */
|
||||
static const GstElementDetails gst_rtp_bv_depay_details =
|
||||
GST_ELEMENT_DETAILS ("RTP BroadcomVoice depayloader",
|
||||
"Codec/Depayloader/Network",
|
||||
"Extracts BroadcomVoice audio from RTP packets (RFC 4298)",
|
||||
"Wim Taymans <wim.taymans@collabora.co.uk>");
|
||||
|
||||
static GstStaticPadTemplate gst_rtp_bv_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) 8000, "
|
||||
"encoding-name = (string) \"BV16\"; "
|
||||
"application/x-rtp, "
|
||||
"media = (string) \"audio\", "
|
||||
"payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", "
|
||||
"clock-rate = (int) 16000, " "encoding-name = (string) \"BV32\"")
|
||||
);
|
||||
|
||||
static GstStaticPadTemplate gst_rtp_bv_depay_src_template =
|
||||
GST_STATIC_PAD_TEMPLATE ("src",
|
||||
GST_PAD_SRC,
|
||||
GST_PAD_ALWAYS,
|
||||
GST_STATIC_CAPS ("audio/x-bv, " "mode = (int) { 16, 32 }")
|
||||
);
|
||||
|
||||
static GstBuffer *gst_rtp_bv_depay_process (GstBaseRTPDepayload * depayload,
|
||||
GstBuffer * buf);
|
||||
static gboolean gst_rtp_bv_depay_setcaps (GstBaseRTPDepayload * depayload,
|
||||
GstCaps * caps);
|
||||
|
||||
GST_BOILERPLATE (GstRTPBVDepay, gst_rtp_bv_depay, GstBaseRTPDepayload,
|
||||
GST_TYPE_BASE_RTP_DEPAYLOAD);
|
||||
|
||||
static void
|
||||
gst_rtp_bv_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_bv_depay_src_template));
|
||||
gst_element_class_add_pad_template (element_class,
|
||||
gst_static_pad_template_get (&gst_rtp_bv_depay_sink_template));
|
||||
gst_element_class_set_details (element_class, &gst_rtp_bv_depay_details);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_rtp_bv_depay_class_init (GstRTPBVDepayClass * klass)
|
||||
{
|
||||
GObjectClass *gobject_class;
|
||||
GstBaseRTPDepayloadClass *gstbasertpdepayload_class;
|
||||
|
||||
gobject_class = (GObjectClass *) klass;
|
||||
gstbasertpdepayload_class = (GstBaseRTPDepayloadClass *) klass;
|
||||
|
||||
gstbasertpdepayload_class->process = gst_rtp_bv_depay_process;
|
||||
gstbasertpdepayload_class->set_caps = gst_rtp_bv_depay_setcaps;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_rtp_bv_depay_init (GstRTPBVDepay * rtpbvdepay, GstRTPBVDepayClass * klass)
|
||||
{
|
||||
rtpbvdepay->mode = -1;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_rtp_bv_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
|
||||
{
|
||||
GstRTPBVDepay *rtpbvdepay = GST_RTP_BV_DEPAY (depayload);
|
||||
GstCaps *srccaps;
|
||||
GstStructure *structure;
|
||||
const gchar *mode_str = NULL;
|
||||
gint mode, clock_rate, expected_rate;
|
||||
gboolean ret;
|
||||
|
||||
structure = gst_caps_get_structure (caps, 0);
|
||||
|
||||
mode_str = gst_structure_get_string (structure, "encoding-name");
|
||||
if (!mode_str)
|
||||
goto no_mode;
|
||||
|
||||
if (!strcmp (mode_str, "BV16")) {
|
||||
mode = 16;
|
||||
expected_rate = 8000;
|
||||
} else if (!strcmp (mode_str, "BV32")) {
|
||||
mode = 32;
|
||||
expected_rate = 16000;
|
||||
} else
|
||||
goto invalid_mode;
|
||||
|
||||
if (!gst_structure_get_int (structure, "clock-rate", &clock_rate))
|
||||
clock_rate = expected_rate;
|
||||
else if (clock_rate != expected_rate)
|
||||
goto wrong_rate;
|
||||
|
||||
depayload->clock_rate = clock_rate;
|
||||
rtpbvdepay->mode = mode;
|
||||
|
||||
srccaps = gst_caps_new_simple ("audio/x-bv",
|
||||
"mode", G_TYPE_INT, rtpbvdepay->mode, NULL);
|
||||
ret = gst_pad_set_caps (GST_BASE_RTP_DEPAYLOAD_SRCPAD (depayload), srccaps);
|
||||
|
||||
GST_DEBUG ("set caps on source: %" GST_PTR_FORMAT " (ret=%d)", srccaps, ret);
|
||||
gst_caps_unref (srccaps);
|
||||
|
||||
return ret;
|
||||
|
||||
/* ERRORS */
|
||||
no_mode:
|
||||
{
|
||||
GST_ERROR_OBJECT (rtpbvdepay, "did not receive an encoding-name");
|
||||
return FALSE;
|
||||
}
|
||||
invalid_mode:
|
||||
{
|
||||
GST_ERROR_OBJECT (rtpbvdepay,
|
||||
"invalid encoding-name, expected BV16 or BV32, got %s", mode_str);
|
||||
return FALSE;
|
||||
}
|
||||
wrong_rate:
|
||||
{
|
||||
GST_ERROR_OBJECT (rtpbvdepay, "invalid clock-rate, expected %d, got %d",
|
||||
expected_rate, clock_rate);
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
static GstBuffer *
|
||||
gst_rtp_bv_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
|
||||
{
|
||||
GstBuffer *outbuf;
|
||||
gboolean marker;
|
||||
|
||||
marker = gst_rtp_buffer_get_marker (buf);
|
||||
|
||||
GST_DEBUG ("process : got %d bytes, mark %d ts %u seqn %d",
|
||||
GST_BUFFER_SIZE (buf), marker,
|
||||
gst_rtp_buffer_get_timestamp (buf), gst_rtp_buffer_get_seq (buf));
|
||||
|
||||
outbuf = gst_rtp_buffer_get_payload_buffer (buf);
|
||||
|
||||
if (marker) {
|
||||
/* mark start of talkspurt with DISCONT */
|
||||
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
|
||||
}
|
||||
|
||||
return outbuf;
|
||||
}
|
||||
|
||||
gboolean
|
||||
gst_rtp_bv_depay_plugin_init (GstPlugin * plugin)
|
||||
{
|
||||
return gst_element_register (plugin, "rtpbvdepay",
|
||||
GST_RANK_MARGINAL, GST_TYPE_RTP_BV_DEPAY);
|
||||
}
|
||||
58
gst/rtp/gstrtpbvdepay.h
Normal file
58
gst/rtp/gstrtpbvdepay.h
Normal file
|
|
@ -0,0 +1,58 @@
|
|||
/* GStreamer
|
||||
* Copyright (C) <2009> Wim Taymans <wim.taymans@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_BV_DEPAY_H__
|
||||
#define __GST_RTP_BV_DEPAY_H__
|
||||
|
||||
#include <gst/gst.h>
|
||||
#include <gst/rtp/gstbasertpdepayload.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
typedef struct _GstRTPBVDepay GstRTPBVDepay;
|
||||
typedef struct _GstRTPBVDepayClass GstRTPBVDepayClass;
|
||||
|
||||
#define GST_TYPE_RTP_BV_DEPAY \
|
||||
(gst_rtp_bv_depay_get_type())
|
||||
#define GST_RTP_BV_DEPAY(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_BV_DEPAY,GstRTPBVDepay))
|
||||
#define GST_RTP_BV_DEPAY_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_BV_DEPAY,GstRTPBVDepayClass))
|
||||
#define GST_IS_RTP_BV_DEPAY(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_BV_DEPAY))
|
||||
#define GST_IS_RTP_BV_DEPAY_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_BV_DEPAY))
|
||||
|
||||
struct _GstRTPBVDepay
|
||||
{
|
||||
GstBaseRTPDepayload depayload;
|
||||
|
||||
gint mode;
|
||||
};
|
||||
|
||||
struct _GstRTPBVDepayClass
|
||||
{
|
||||
GstBaseRTPDepayloadClass parent_class;
|
||||
};
|
||||
|
||||
gboolean gst_rtp_bv_depay_plugin_init (GstPlugin * plugin);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_RTP_BV_DEPAY_H__ */
|
||||
Loading…
Reference in a new issue