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Added new plugin amrwb parse.

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Original commit message from CVS:
Patch by: Renato Araujo Oliveira Filho <renatox at gmail dot com>
* configure.ac:
* ext/Makefile.am:
* ext/amrwb/Makefile.am:
* ext/amrwb/README:
* ext/amrwb/amrwb-code/Makefile.am:
* ext/amrwb/amrwb-code/run.sh:
* ext/amrwb/gstamrwb.c: (plugin_init):
* ext/amrwb/gstamrwbdec.c: (gst_amrwbdec_base_init),
(gst_amrwbdec_class_init), (gst_amrwbdec_init),
(gst_amrwbdec_setcaps), (gst_amrwbdec_event), (gst_amrwbdec_chain),
(gst_amrwbdec_state_change):
* ext/amrwb/gstamrwbdec.h:
* ext/amrwb/gstamrwbenc.c: (gst_amrwbenc_base_init),
(gst_amrwbenc_class_init), (gst_amrwbenc_init),
(gst_amrwbenc_finalize), (gst_amrwbenc_setcaps),
(gst_amrwbenc_chain), (gst_amrwbenc_state_change):
* ext/amrwb/gstamrwbenc.h:
* ext/amrwb/gstamrwbparse.c: (gst_amrwbparse_base_init),
(gst_amrwbparse_class_init), (gst_amrwbparse_init),
(gst_amrwbparse_querytypes), (gst_amrwbparse_query),
(gst_amrwbparse_chain), (gst_amrwbparse_read_header),
(gst_amrwbparse_loop), (gst_amrwbparse_sink_activate),
(gst_amrwbparse_sink_activate_pull), (gst_amrwbparse_state_change):
* ext/amrwb/gstamrwbparse.h:
Added new plugin amrwb parse.
Renamed audio/AMR to audio/AMR-WB as per spec.
Fixes #333307
This commit is contained in:
Renato Araujo Oliveira Filho 2006-03-29 16:50:08 +00:00 committed by Wim Taymans
parent 882324f2ae
commit 599af07ac7
14 changed files with 1404 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

32
ChangeLog
View file

@ -1,3 +1,35 @@
2006-03-29 Wim Taymans <wim@fluendo.com>
Patch by: Renato Araujo Oliveira Filho <renatox at gmail dot com>
* configure.ac:
* ext/Makefile.am:
* ext/amrwb/Makefile.am:
* ext/amrwb/README:
* ext/amrwb/amrwb-code/Makefile.am:
* ext/amrwb/amrwb-code/run.sh:
* ext/amrwb/gstamrwb.c: (plugin_init):
* ext/amrwb/gstamrwbdec.c: (gst_amrwbdec_base_init),
(gst_amrwbdec_class_init), (gst_amrwbdec_init),
(gst_amrwbdec_setcaps), (gst_amrwbdec_event), (gst_amrwbdec_chain),
(gst_amrwbdec_state_change):
* ext/amrwb/gstamrwbdec.h:
* ext/amrwb/gstamrwbenc.c: (gst_amrwbenc_base_init),
(gst_amrwbenc_class_init), (gst_amrwbenc_init),
(gst_amrwbenc_finalize), (gst_amrwbenc_setcaps),
(gst_amrwbenc_chain), (gst_amrwbenc_state_change):
* ext/amrwb/gstamrwbenc.h:
* ext/amrwb/gstamrwbparse.c: (gst_amrwbparse_base_init),
(gst_amrwbparse_class_init), (gst_amrwbparse_init),
(gst_amrwbparse_querytypes), (gst_amrwbparse_query),
(gst_amrwbparse_chain), (gst_amrwbparse_read_header),
(gst_amrwbparse_loop), (gst_amrwbparse_sink_activate),
(gst_amrwbparse_sink_activate_pull), (gst_amrwbparse_state_change):
* ext/amrwb/gstamrwbparse.h:
Added new plugin amrwb parse.
Renamed audio/AMR to audio/AMR-WB as per spec.
Fixes #333307
2006-03-27 Edgard Lima <edgard.lima@indt.org.br>
* gst-plugins-bad/sys/v4l2/v4l2src_calls.c: (gst_v4l2src_capture_init):

15
configure.ac
View file

@ -433,6 +433,19 @@ GST_CHECK_FEATURE(XSHM, [X Shared Memory extension], [ximagesrc w/ xshm], [
AC_SUBST(XSHM_LIBS)
] )
dnl *** amrwb ***
translit(dnm, m, l) AM_CONDITIONAL(USE_AMRWB, true)
GST_CHECK_FEATURE(AMRWB, [amrwb code], amrwb, [
if test -f "ext/amrwb/amrwb-code/readme.txt"; then
HAVE_AMRWB="yes"
else
AC_MSG_WARN(Not amrwb code found. See README at ext/amrwb/)
HAVE_AMRWB="no"
fi
AC_SUBST(HAVE_AMRWB)
])
dnl *** BZ2 ***
translit(dnm, m, l) AM_CONDITIONAL(USE_BZ2, true)
GST_CHECK_FEATURE(BZ2, [bz2 library], bz2, [
@ -822,6 +835,8 @@ sys/v4l2/Makefile
examples/Makefile
examples/directfb/Makefile
ext/Makefile
ext/amrwb/Makefile
ext/amrwb/amrwb-code/Makefile
ext/bz2/Makefile
ext/directfb/Makefile
ext/faac/Makefile

9
ext/Makefile.am
View file

@ -1,3 +1,10 @@
if USE_AMRWB
AMRWB_DIR = amrwb
else
AMRWB_DIR =
endif
# if USE_ARTS
# ARTS_DIR=arts
# else
@ -221,6 +228,7 @@ XVID_DIR=
endif
SUBDIRS=\
$(AMRWB_DIR) \
$(ARTS_DIR) \
$(ARTSC_DIR) \
$(AUDIOFILE_DIR) \
@ -260,6 +268,7 @@ SUBDIRS=\
$(XVID_DIR)
DIST_SUBDIRS= \
amrwb \
bz2 \
directfb \
faac \

18
ext/amrwb/Makefile.am Normal file
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@ -0,0 +1,18 @@
SUBDIRS = amrwb-code
plugin_LTLIBRARIES = libgstamrwb.la
libgstamrwb_la_SOURCES = \
gstamrwb.c \
gstamrwbdec.c \
gstamrwbenc.c \
gstamrwbparse.c
libgstamrwb_la_CFLAGS = $(GST_CFLAGS) $(AMRWB_CFLAGS) -Iamrwb-code/
libgstamrwb_la_LIBADD = $(GST_BASE_LIBS) $(AMRWB_LIBS) amrwb-code/libamrwb.la
libgstamrwb_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = \
gstamrwbdec.h \
gstamrwbenc.h \
gstamrwbparse.h

12
ext/amrwb/README Normal file
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@ -0,0 +1,12 @@
Compiling AMRWB codec:
======================
To compile the amrwb codec, you need to download the source code from
"http://www.3gpp.org/ftp/Specs/html-info/26204.htm" and uncompress the
files inside an amrwb-code directory;
or execute this commands:
$cd amrwb-code
$sh ./run.sh
and run the "autogen" script again.

44
ext/amrwb/amrwb-code/Makefile.am Normal file
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@ -0,0 +1,44 @@
noinst_LTLIBRARIES = libamrwb.la
libamrwb_la_SOURCES = \
enc_acelp.c \
enc_dtx.c \
enc_gain.c \
enc_if.c \
enc_lpc.c \
enc_main.c \
enc_rom.c \
enc_util.c \
if_rom.c \
dec_acelp.c \
dec_dtx.c \
dec_gain.c \
dec_if.c \
dec_lpc.c \
dec_main.c \
dec_rom.c \
dec_util.c
libamrwb_la_CFLAGS = -I./amrwb-code/c-code
libamrwb_la_LIBADD = $(GST_BASE_LIBS) $(AMRWB_LIBS)
libamrwb_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = \
dec_acelp.h \
dec_dtx.h \
dec_gain.h \
dec.h \
dec_if.h \
dec_lpc.h \
dec_main.h \
dec_util.h \
enc_acelp.h \
enc_dtx.h \
enc_gain.h \
enc.h \
enc_if.h \
enc_lpc.h \
enc_main.h \
enc_util.h \
if_rom.h \
typedef.h

6
ext/amrwb/amrwb-code/run.sh Normal file
View file

@ -0,0 +1,6 @@
wget http://www.3gpp.org/ftp/Specs/archive/26_series/26.204/26204-600.zip
unzip 26204-600.zip
unzip 26204-600_ANSI-C_source_code.zip
mv c-code/* .
rm -rf c-code/ 26204-600.zip 26204-600_ANSI-C_source_code.zip
echo "" >> typedef.h # to remove compilation warning (no newline at end of file)

44
ext/amrwb/gstamrwb.c Normal file
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@ -0,0 +1,44 @@
/* GStreamer Adaptive Multi-Rate Wide-Band (AMR-WB) plugin
* Copyright (C) 2006 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 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 "gstamrwbdec.h"
#include "gstamrwbenc.h"
#include "gstamrwbparse.h"
static gboolean
plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "amrwbdec",
GST_RANK_PRIMARY, GST_TYPE_AMRWBDEC) &&
gst_element_register (plugin, "amrwbparse",
GST_RANK_PRIMARY, GST_TYPE_AMRWBPARSE) &&
gst_element_register (plugin, "amrwbenc",
GST_RANK_NONE, GST_TYPE_AMRWBENC);
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"amrwb",
"Adaptive Multi-Rate Wide-Band",
plugin_init, VERSION, GST_LICENSE_UNKNOWN, GST_PACKAGE, GST_ORIGIN);

297
ext/amrwb/gstamrwbdec.c Normal file
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@ -0,0 +1,297 @@
/* GStreamer Adaptive Multi-Rate Narrow-Band (AMR-NB) plugin
* Copyright (C) 2004 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* 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 "gstamrwbdec.h"
static GstElementDetails gst_amrwbdec_details = {
"AMR-WB decoder",
"Codec/Decoder/Audio",
"Adaptive Multi-Rate Wideband audio decoder",
"Renato Araujo <renato.filho@indt.org.br>"
};
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/AMR-WB, "
"rate = (int) 16000, " "channels = (int) 1")
);
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"width = (int) 16, "
"depth = (int) 16, "
"signed = (boolean) TRUE, "
"endianness = (int) BYTE_ORDER, "
"rate = (int) 16000, " "channels = (int) 1")
);
extern const UWord8 block_size[];
static void gst_amrwbdec_base_init (gpointer klass);
static void gst_amrwbdec_class_init (GstAmrwbDecClass * klass);
static void gst_amrwbdec_init (GstAmrwbDec * amrwbdec,
GstAmrwbDecClass * klass);
static gboolean gst_amrwbdec_event (GstPad * pad, GstEvent * event);
static GstFlowReturn gst_amrwbdec_chain (GstPad * pad, GstBuffer * buffer);
static gboolean gst_amrwbdec_setcaps (GstPad * pad, GstCaps * caps);
static GstStateChangeReturn gst_amrwbdec_state_change (GstElement * element,
GstStateChange transition);
GST_BOILERPLATE (GstAmrwbDec, gst_amrwbdec, GstElement, GST_TYPE_ELEMENT)
static void gst_amrwbdec_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template));
gst_element_class_set_details (element_class, &gst_amrwbdec_details);
}
static void
gst_amrwbdec_class_init (GstAmrwbDecClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
element_class->change_state = gst_amrwbdec_state_change;
}
static void
gst_amrwbdec_init (GstAmrwbDec * amrwbdec, GstAmrwbDecClass * klass)
{
/* create the sink pad */
amrwbdec->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get (&sink_template),
"sink");
gst_pad_set_setcaps_function (amrwbdec->sinkpad, gst_amrwbdec_setcaps);
gst_pad_set_event_function (amrwbdec->sinkpad, gst_amrwbdec_event);
gst_pad_set_chain_function (amrwbdec->sinkpad, gst_amrwbdec_chain);
gst_element_add_pad (GST_ELEMENT (amrwbdec), amrwbdec->sinkpad);
/* create the src pad */
amrwbdec->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get (&src_template),
"src");
gst_pad_use_fixed_caps (amrwbdec->srcpad);
gst_element_add_pad (GST_ELEMENT (amrwbdec), amrwbdec->srcpad);
amrwbdec->adapter = gst_adapter_new ();
/* init rest */
amrwbdec->handle = NULL;
amrwbdec->channels = 0;
amrwbdec->rate = 0;
amrwbdec->duration = 0;
amrwbdec->ts = -1;
}
static gboolean
gst_amrwbdec_setcaps (GstPad * pad, GstCaps * caps)
{
GstStructure *structure;
GstAmrwbDec *amrwbdec;
GstCaps *copy;
amrwbdec = GST_AMRWBDEC (gst_pad_get_parent (pad));
structure = gst_caps_get_structure (caps, 0);
/* get channel count */
gst_structure_get_int (structure, "channels", &amrwbdec->channels);
gst_structure_get_int (structure, "rate", &amrwbdec->rate);
/* create reverse caps */
copy = gst_caps_new_simple ("audio/x-raw-int",
"channels", G_TYPE_INT, amrwbdec->channels,
"width", G_TYPE_INT, 16,
"depth", G_TYPE_INT, 16,
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"rate", G_TYPE_INT, amrwbdec->rate, "signed", G_TYPE_BOOLEAN, TRUE, NULL);
amrwbdec->duration = gst_util_uint64_scale_int (GST_SECOND, L_FRAME16k,
amrwbdec->rate * amrwbdec->channels);
gst_pad_set_caps (amrwbdec->srcpad, copy);
gst_caps_unref (copy);
gst_object_unref (amrwbdec);
return TRUE;
}
static gboolean
gst_amrwbdec_event (GstPad * pad, GstEvent * event)
{
GstAmrwbDec *amrwbdec;
gboolean ret = TRUE;
amrwbdec = GST_AMRWBDEC (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_START:
ret = gst_pad_push_event (amrwbdec->srcpad, event);
break;
case GST_EVENT_FLUSH_STOP:
ret = gst_pad_push_event (amrwbdec->srcpad, event);
gst_adapter_clear (amrwbdec->adapter);
amrwbdec->ts = -1;
break;
case GST_EVENT_EOS:
gst_adapter_clear (amrwbdec->adapter);
ret = gst_pad_push_event (amrwbdec->srcpad, event);
break;
default:
ret = gst_pad_push_event (amrwbdec->srcpad, event);
break;
}
gst_object_unref (amrwbdec);
return ret;
}
static GstFlowReturn
gst_amrwbdec_chain (GstPad * pad, GstBuffer * buffer)
{
GstAmrwbDec *amrwbdec;
GstFlowReturn ret = GST_FLOW_OK;
amrwbdec = GST_AMRWBDEC (gst_pad_get_parent (pad));
if (amrwbdec->rate == 0 || amrwbdec->channels == 0) {
GST_ELEMENT_ERROR (amrwbdec, STREAM, TYPE_NOT_FOUND, (NULL),
("Decoder is not initialized"));
ret = GST_FLOW_NOT_NEGOTIATED;
goto done;
}
if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer))
amrwbdec->ts = GST_BUFFER_TIMESTAMP (buffer);
gst_adapter_push (amrwbdec->adapter, buffer);
while (TRUE) {
GstBuffer *out;
UWord8 *data;
Word16 block, mode;
if (gst_adapter_available (amrwbdec->adapter) < 1)
break;
data = (UWord8 *) gst_adapter_peek (amrwbdec->adapter, 1);
/* get size */
mode = (Word16) (data[0] >> 3) & 0x0F;
block = block_size[mode];
if (gst_adapter_available (amrwbdec->adapter) < block) {
break;
}
/* the library seems to write into the source data, hence
* the copy. */
data = (UWord8 *) gst_adapter_take (amrwbdec->adapter, block);
/* get output */
out = gst_buffer_new_and_alloc (sizeof (Word16) * L_FRAME16k);
GST_BUFFER_DURATION (out) = amrwbdec->duration;
GST_BUFFER_TIMESTAMP (out) = amrwbdec->ts;
if (amrwbdec->ts != -1)
amrwbdec->ts += GST_BUFFER_DURATION (out);
gst_buffer_set_caps (out, GST_PAD_CAPS (amrwbdec->srcpad));
/* decode */
D_IF_decode (amrwbdec->handle, data,
(Word16 *) GST_BUFFER_DATA (out), _good_frame);
g_free (data);
/* play */
ret = gst_pad_push (amrwbdec->srcpad, out);
}
done:
gst_object_unref (amrwbdec);
return ret;
}
static GstStateChangeReturn
gst_amrwbdec_state_change (GstElement * element, GstStateChange transition)
{
GstAmrwbDec *amrwbdec;
GstStateChangeReturn ret;
amrwbdec = GST_AMRWBDEC (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (!(amrwbdec->handle = D_IF_init ()))
goto init_failed;
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_adapter_clear (amrwbdec->adapter);
amrwbdec->rate = 0;
amrwbdec->channels = 0;
amrwbdec->ts = -1;
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
D_IF_exit (amrwbdec->handle);
break;
default:
break;
}
return ret;
/* ERRORS */
init_failed:
{
GST_ELEMENT_ERROR (amrwbdec, LIBRARY, INIT, (NULL),
("Failed to open AMR Decoder"));
return GST_STATE_CHANGE_FAILURE;
}
}

69
ext/amrwb/gstamrwbdec.h Normal file
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@ -0,0 +1,69 @@
/* GStreamer Adaptive Multi-Rate Wide-Band (AMR-WB) plugin
* Copyright (C) 2006 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 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_AMRWBDEC_H__
#define __GST_AMRWBDEC_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
#include "typedef.h"
#include "dec_if.h"
G_BEGIN_DECLS
#define GST_TYPE_AMRWBDEC \
(gst_amrwbdec_get_type())
#define GST_AMRWBDEC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_AMRWBDEC, GstAmrwbDec))
#define GST_AMRWBDEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_AMRWBDEC, GstAmrwbDec))
#define GST_IS_AMRWBDEC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_AMRWBDEC))
#define GST_IS_AMRWBDEC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_AMRWBDEC))
typedef struct _GstAmrwbDec GstAmrwbDec;
typedef struct _GstAmrwbDecClass GstAmrwbDecClass;
struct _GstAmrwbDec {
GstElement element;
/* pads */
GstPad *sinkpad, *srcpad;
guint64 ts;
GstAdapter *adapter;
/* library handle */
void *handle;
/* output settings */
gint channels, rate;
gint duration;
};
struct _GstAmrwbDecClass {
GstElementClass parent_class;
};
GType gst_amrwbdec_get_type (void);
G_END_DECLS
#endif /* __GST_AMRWBDEC_H__ */

251
ext/amrwb/gstamrwbenc.c Normal file
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@ -0,0 +1,251 @@
/* GStreamer Adaptive Multi-Rate Wide-Band (AMR-WB) plugin
* Copyright (C) 2006 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 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 "gstamrwbenc.h"
static GstElementDetails gst_amrwbenc_details = {
"AMR-WB encoder",
"Codec/Encoder/Audio",
"Adaptive Multi-Rate Wideband audio encoder",
"Renato Araujo <renato.filho@indt.org.br>"
};
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"width = (int) 16, "
"depth = (int) 16, "
"signed = (boolean) TRUE, "
"endianness = (int) BYTE_ORDER, "
"rate = (int) 16000, " "channels = (int) 1")
);
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/AMR-WB, "
"rate = (int) 16000, " "channels = (int) 1")
);
static void gst_amrwbenc_base_init (gpointer klass);
static void gst_amrwbenc_class_init (GstAmrwbEncClass * klass);
static void gst_amrwbenc_init (GstAmrwbEnc * amrwbenc,
GstAmrwbEncClass * klass);
static void gst_amrwbenc_finalize (GObject * object);
static GstFlowReturn gst_amrwbenc_chain (GstPad * pad, GstBuffer * buffer);
static gboolean gst_amrwbenc_setcaps (GstPad * pad, GstCaps * caps);
static GstStateChangeReturn gst_amrwbenc_state_change (GstElement * element,
GstStateChange transition);
GST_BOILERPLATE (GstAmrwbEnc, gst_amrwbenc, GstElement, GST_TYPE_ELEMENT)
static void gst_amrwbenc_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template));
gst_element_class_set_details (element_class, &gst_amrwbenc_details);
}
static void
gst_amrwbenc_class_init (GstAmrwbEncClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
object_class->finalize = gst_amrwbenc_finalize;
element_class->change_state = gst_amrwbenc_state_change;
}
static void
gst_amrwbenc_init (GstAmrwbEnc * amrwbenc, GstAmrwbEncClass * klass)
{
/* create the sink pad */
amrwbenc->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get (&sink_template),
"sink");
gst_pad_set_setcaps_function (amrwbenc->sinkpad, gst_amrwbenc_setcaps);
gst_pad_set_chain_function (amrwbenc->sinkpad, gst_amrwbenc_chain);
gst_element_add_pad (GST_ELEMENT (amrwbenc), amrwbenc->sinkpad);
/* create the src pad */
amrwbenc->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get (&src_template),
"src");
gst_pad_use_fixed_caps (amrwbenc->srcpad);
gst_element_add_pad (GST_ELEMENT (amrwbenc), amrwbenc->srcpad);
amrwbenc->adapter = gst_adapter_new ();
/* init rest */
amrwbenc->handle = NULL;
amrwbenc->channels = 0;
amrwbenc->rate = 0;
amrwbenc->ts = 0;
}
static void
gst_amrwbenc_finalize (GObject * object)
{
GstAmrwbEnc *amrwbenc;
amrwbenc = GST_AMRWBENC (object);
g_object_unref (G_OBJECT (amrwbenc->adapter));
amrwbenc->adapter = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
gst_amrwbenc_setcaps (GstPad * pad, GstCaps * caps)
{
GstStructure *structure;
GstAmrwbEnc *amrwbenc;
GstCaps *copy;
amrwbenc = GST_AMRWBENC (GST_PAD_PARENT (pad));
structure = gst_caps_get_structure (caps, 0);
/* get channel count */
gst_structure_get_int (structure, "channels", &amrwbenc->channels);
gst_structure_get_int (structure, "rate", &amrwbenc->rate);
/* this is not wrong but will sound bad */
if (amrwbenc->channels != 1) {
GST_WARNING ("amrwbdec is only optimized for mono channels");
}
if (amrwbenc->rate != 16000) {
GST_WARNING ("amrwbdec is only optimized for 16000 Hz samplerate");
}
/* create reverse caps */
copy = gst_caps_new_simple ("audio/AMR-WB",
"channels", G_TYPE_INT, amrwbenc->channels,
"rate", G_TYPE_INT, amrwbenc->rate, NULL);
gst_pad_set_caps (amrwbenc->srcpad, copy);
gst_caps_unref (copy);
return TRUE;
}
static GstFlowReturn
gst_amrwbenc_chain (GstPad * pad, GstBuffer * buffer)
{
GstAmrwbEnc *amrwbenc;
GstFlowReturn ret = GST_FLOW_OK;
const int buffer_size = sizeof (Word16) * L_FRAME16k;
amrwbenc = GST_AMRWBENC (gst_pad_get_parent (pad));
g_return_val_if_fail (amrwbenc->handle, GST_FLOW_WRONG_STATE);
if (amrwbenc->rate == 0 || amrwbenc->channels == 0) {
ret = GST_FLOW_NOT_NEGOTIATED;
goto done;
}
if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer))
amrwbenc->ts = GST_BUFFER_TIMESTAMP (buffer);
ret = GST_FLOW_OK;
gst_adapter_push (amrwbenc->adapter, buffer);
/* Collect samples until we have enough for an output frame */
while (gst_adapter_available (amrwbenc->adapter) >= buffer_size) {
GstBuffer *out;
guint8 *data;
gint outsize;
out = gst_buffer_new_and_alloc (buffer_size);
GST_BUFFER_DURATION (out) = GST_SECOND * L_FRAME16k /
(amrwbenc->rate * amrwbenc->channels);
GST_BUFFER_TIMESTAMP (out) = amrwbenc->ts;
amrwbenc->ts += GST_BUFFER_DURATION (out);
gst_buffer_set_caps (out, gst_pad_get_caps (amrwbenc->srcpad));
data = (guint8 *) gst_adapter_peek (amrwbenc->adapter, buffer_size);
/* encode */
outsize = E_IF_encode (amrwbenc->handle, 0, (Word16 *) data,
(UWord8 *) GST_BUFFER_DATA (out), 0);
gst_adapter_flush (amrwbenc->adapter, buffer_size);
GST_BUFFER_SIZE (out) = outsize;
ret = gst_pad_push (amrwbenc->srcpad, out);
}
done:
gst_object_unref (amrwbenc);
return ret;
}
static GstStateChangeReturn
gst_amrwbenc_state_change (GstElement * element, GstStateChange transition)
{
GstAmrwbEnc *amrwbenc;
GstStateChangeReturn ret;
amrwbenc = GST_AMRWBENC (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (!(amrwbenc->handle = E_IF_init ()))
return GST_STATE_CHANGE_FAILURE;
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
amrwbenc->ts = 0;
gst_adapter_clear (amrwbenc->adapter);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
E_IF_exit (amrwbenc->handle);
break;
default:
break;
}
return ret;
}

69
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/* GStreamer Adaptive Multi-Rate Wide-Band (AMR-WB) plugin
* Copyright (C) 2006 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 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_AMRWBENC_H__
#define __GST_AMRWBENC_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
#include "enc_if.h"
#include "typedef.h"
G_BEGIN_DECLS
#define GST_TYPE_AMRWBENC \
(gst_amrwbenc_get_type())
#define GST_AMRWBENC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_AMRWBENC, GstAmrwbEnc))
#define GST_AMRWBENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_AMRWBENC, GstAmrwbEnc))
#define GST_IS_AMRWBENC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_AMRWBENC))
#define GST_IS_AMRWBENC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_AMRWBENC))
typedef struct _GstAmrwbEnc GstAmrwbEnc;
typedef struct _GstAmrwbEncClass GstAmrwbEncClass;
struct _GstAmrwbEnc {
GstElement element;
/* pads */
GstPad *sinkpad, *srcpad;
guint64 ts;
GstAdapter *adapter;
/* library handle */
void *handle;
/* input settings */
gint channels, rate;
};
struct _GstAmrwbEncClass {
GstElementClass parent_class;
};
GType gst_amrwbenc_get_type (void);
G_END_DECLS
#endif /* __GST_AMRWBENC_H__ */

473
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/* GStreamer Adaptive Multi-Rate Wide-Band (AMR-WB) plugin
* Copyright (C) 2006 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 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 "typedef.h"
#include "gstamrwbparse.h"
#include "dec_if.h"
GST_DEBUG_CATEGORY_STATIC (amrwbparse_debug);
#define GST_CAT_DEFAULT amrwbparse_debug
static GstElementDetails gst_amrwbparse_details = {
"AMR-WB parser",
"Codec/Parser/Audio",
"Adaptive Multi-Rate WideBand audio parser",
"Renato Filho <renato.filho@indt.org.br>"
};
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/AMR-WB, "
"rate = (int) 16000, " "channels = (int) 1")
);
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-amr-wb-sh")
);
extern const UWord8 block_size[];
static void gst_amrwbparse_base_init (gpointer klass);
static void gst_amrwbparse_class_init (GstAmrwbParseClass * klass);
static void gst_amrwbparse_init (GstAmrwbParse * amrwbparse,
GstAmrwbParseClass * klass);
static const GstQueryType *gst_amrwbparse_querytypes (GstPad * pad);
static gboolean gst_amrwbparse_query (GstPad * pad, GstQuery * query);
static GstFlowReturn gst_amrwbparse_chain (GstPad * pad, GstBuffer * buffer);
static void gst_amrwbparse_loop (GstPad * pad);
static gboolean gst_amrwbparse_sink_activate (GstPad * sinkpad);
static gboolean gst_amrwbparse_sink_activate_pull (GstPad * sinkpad,
gboolean active);
static GstStateChangeReturn gst_amrwbparse_state_change (GstElement * element,
GstStateChange transition);
GST_BOILERPLATE (GstAmrwbParse, gst_amrwbparse, GstElement, GST_TYPE_ELEMENT);
static void
gst_amrwbparse_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_set_details (element_class, &gst_amrwbparse_details);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template));
}
static void
gst_amrwbparse_class_init (GstAmrwbParseClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
element_class->change_state = gst_amrwbparse_state_change;
GST_DEBUG_CATEGORY_INIT (amrwbparse_debug,
"amrwbparse", 0, "AMR-WB stream parsing");
}
static void
gst_amrwbparse_init (GstAmrwbParse * amrwbparse, GstAmrwbParseClass * klass)
{
/* create the sink pad */
amrwbparse->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get (&sink_template),
"sink");
gst_pad_set_chain_function (amrwbparse->sinkpad,
GST_DEBUG_FUNCPTR (gst_amrwbparse_chain));
gst_pad_set_activate_function (amrwbparse->sinkpad,
gst_amrwbparse_sink_activate);
gst_pad_set_activatepull_function (amrwbparse->sinkpad,
gst_amrwbparse_sink_activate_pull);
gst_element_add_pad (GST_ELEMENT (amrwbparse), amrwbparse->sinkpad);
/* create the src pad */
amrwbparse->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get (&src_template),
"src");
gst_pad_set_query_function (amrwbparse->srcpad,
GST_DEBUG_FUNCPTR (gst_amrwbparse_query));
gst_pad_set_query_type_function (amrwbparse->srcpad,
GST_DEBUG_FUNCPTR (gst_amrwbparse_querytypes));
gst_element_add_pad (GST_ELEMENT (amrwbparse), amrwbparse->srcpad);
amrwbparse->adapter = gst_adapter_new ();
/* init rest */
amrwbparse->ts = 0;
}
static const GstQueryType *
gst_amrwbparse_querytypes (GstPad * pad)
{
static const GstQueryType list[] = {
GST_QUERY_POSITION,
0
};
return list;
}
static gboolean
gst_amrwbparse_query (GstPad * pad, GstQuery * query)
{
GstAmrwbParse *amrwbparse;
gboolean res = TRUE;
amrwbparse = GST_AMRWBPARSE (GST_PAD_PARENT (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
{
GstFormat format;
gint64 cur;
gst_query_parse_position (query, &format, NULL);
if (format != GST_FORMAT_TIME) {
res = FALSE;
break;
}
cur = amrwbparse->ts;
gst_query_set_position (query, GST_FORMAT_TIME, cur);
res = TRUE;
break;
}
case GST_QUERY_DURATION:
{
GstFormat format;
gint64 tot;
GstPad *peer;
gst_query_parse_duration (query, &format, NULL);
if (format != GST_FORMAT_TIME) {
res = FALSE;
break;
}
tot = -1;
peer = gst_pad_get_peer (amrwbparse->sinkpad);
if (peer) {
GstFormat pformat;
gint64 pcur, ptot;
pformat = GST_FORMAT_BYTES;
res = gst_pad_query_position (peer, &pformat, &pcur);
res = gst_pad_query_duration (peer, &pformat, &ptot);
gst_object_unref (GST_OBJECT (peer));
if (res) {
tot = amrwbparse->ts * ((gdouble) ptot / pcur);
}
}
gst_query_set_duration (query, GST_FORMAT_TIME, tot);
res = TRUE;
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (amrwbparse);
return res;
}
/*
* Data reading.
*/
/* streaming mode */
static GstFlowReturn
gst_amrwbparse_chain (GstPad * pad, GstBuffer * buffer)
{
GstAmrwbParse *amrwbparse;
GstFlowReturn res = GST_FLOW_OK;
gint block, mode;
const guint8 *data;
GstBuffer *out;
amrwbparse = GST_AMRWBPARSE (gst_pad_get_parent (pad));
gst_adapter_push (amrwbparse->adapter, buffer);
/* init */
if (amrwbparse->need_header) {
if (gst_adapter_available (amrwbparse->adapter) < 9)
goto done;
data = gst_adapter_peek (amrwbparse->adapter, 9);
if (memcmp (data, "#!AMR-WB\n", 9) != 0)
goto done;
gst_adapter_flush (amrwbparse->adapter, 9);
amrwbparse->need_header = FALSE;
}
while (TRUE) {
if (gst_adapter_available (amrwbparse->adapter) < 1)
break;
data = gst_adapter_peek (amrwbparse->adapter, 1);
/* get size */
mode = (data[0] >> 3) & 0x0F;
block = block_size[mode] + 1; /* add one for the mode */
if (gst_adapter_available (amrwbparse->adapter) < block)
break;
out = gst_buffer_new_and_alloc (block);
data = gst_adapter_peek (amrwbparse->adapter, block);
memcpy (GST_BUFFER_DATA (out), data, block);
/* output */
GST_BUFFER_DURATION (out) = GST_SECOND * L_FRAME16k / 16000;
GST_BUFFER_TIMESTAMP (out) = amrwbparse->ts;
amrwbparse->ts += GST_BUFFER_DURATION (out);
gst_buffer_set_caps (out,
(GstCaps *) gst_pad_get_pad_template_caps (amrwbparse->srcpad));
res = gst_pad_push (amrwbparse->srcpad, out);
gst_adapter_flush (amrwbparse->adapter, block);
}
done:
gst_object_unref (amrwbparse);
return res;
}
static gboolean
gst_amrwbparse_read_header (GstAmrwbParse * amrwbparse)
{
GstBuffer *buffer;
gboolean ret = TRUE;
guint8 *data;
gint size;
const guint8 magic_number_size = 9; /* sizeof("#!AMR-WB\n")-1 */
if (GST_FLOW_OK != gst_pad_pull_range (amrwbparse->sinkpad,
amrwbparse->offset, magic_number_size, &buffer)) {
ret = FALSE;
goto done;
}
data = GST_BUFFER_DATA (buffer);
size = GST_BUFFER_SIZE (buffer);
if (size < magic_number_size) {
/* not enough */
ret = FALSE;
goto done;
}
if (memcmp (data, "#!AMR-WB\n", magic_number_size)) {
/* no header */
ret = FALSE;
goto done;
}
amrwbparse->offset += magic_number_size;
done:
gst_buffer_unref (buffer);
return ret;
}
/* random access mode, could just read a fixed size buffer and push it to
* the chain function but we don't... */
static void
gst_amrwbparse_loop (GstPad * pad)
{
GstAmrwbParse *amrwbparse;
GstBuffer *buffer;
guint8 *data;
gint size;
gint block, mode;
GstFlowReturn ret = GST_FLOW_OK;
amrwbparse = GST_AMRWBPARSE (gst_pad_get_parent (pad));
/* init */
if (amrwbparse->need_header) {
gboolean got_header;
got_header = gst_amrwbparse_read_header (amrwbparse);
if (!got_header) {
GST_LOG_OBJECT (amrwbparse, "could not read header");
goto need_pause;
}
amrwbparse->need_header = FALSE;
}
ret = gst_pad_pull_range (amrwbparse->sinkpad,
amrwbparse->offset, 1, &buffer);
if (ret != GST_FLOW_OK)
goto eos;
data = GST_BUFFER_DATA (buffer);
size = GST_BUFFER_SIZE (buffer);
/* get size */
mode = (data[0] >> 3) & 0x0F;
block = block_size[mode]; /* add one for the mode */
gst_buffer_unref (buffer);
ret = gst_pad_pull_range (amrwbparse->sinkpad,
amrwbparse->offset, block, &buffer);
if (ret != GST_FLOW_OK)
goto need_pause;
amrwbparse->offset += block;
/* output */
GST_BUFFER_DURATION (buffer) = GST_SECOND * L_FRAME16k / 16000;
GST_BUFFER_TIMESTAMP (buffer) = amrwbparse->ts;
amrwbparse->ts += GST_BUFFER_DURATION (buffer);
gst_buffer_set_caps (buffer,
(GstCaps *) gst_pad_get_pad_template_caps (amrwbparse->srcpad));
ret = gst_pad_push (amrwbparse->srcpad, buffer);
if (ret != GST_FLOW_OK)
goto need_pause;
goto done;
eos:
if (ret == GST_FLOW_UNEXPECTED) {
gst_pad_push_event (amrwbparse->srcpad, gst_event_new_eos ());
gst_pad_pause_task (pad);
goto done;
} else {
GST_LOG_OBJECT (amrwbparse, "pausing task %d", ret);
gst_pad_pause_task (pad);
goto done;
}
need_pause:
GST_LOG_OBJECT (amrwbparse, "pausing task");
gst_pad_pause_task (pad);
goto done;
done:
gst_object_unref (amrwbparse);
}
static gboolean
gst_amrwbparse_sink_activate (GstPad * sinkpad)
{
GstAmrwbParse *amrwbparse;
amrwbparse = GST_AMRWBPARSE (GST_PAD_PARENT (sinkpad));
if (gst_pad_check_pull_range (sinkpad)) {
return gst_pad_activate_pull (sinkpad, TRUE);
} else {
amrwbparse->seekable = FALSE;
return gst_pad_activate_push (sinkpad, TRUE);
}
}
static gboolean
gst_amrwbparse_sink_activate_pull (GstPad * sinkpad, gboolean active)
{
gboolean result;
GstAmrwbParse *amrwbparse;
amrwbparse = GST_AMRWBPARSE (GST_PAD_PARENT (sinkpad));
if (active) {
amrwbparse->need_header = TRUE;
amrwbparse->seekable = TRUE;
amrwbparse->ts = 0;
/* if we have a scheduler we can start the task */
result = gst_pad_start_task (sinkpad,
(GstTaskFunction) gst_amrwbparse_loop, sinkpad);
} else {
result = gst_pad_stop_task (sinkpad);
}
return result;
}
static GstStateChangeReturn
gst_amrwbparse_state_change (GstElement * element, GstStateChange transition)
{
GstAmrwbParse *amrwbparse;
GstStateChangeReturn ret;
amrwbparse = GST_AMRWBPARSE (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_PAUSED_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}

65
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/* GStreamer Adaptive Multi-Rate Wide-Band (AMR-WB) plugin
* Copyright (C) 2006 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 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_AMRWBPARSE_H__
#define __GST_AMRWBPARSE_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
G_BEGIN_DECLS
#define GST_TYPE_AMRWBPARSE \
(gst_amrwbparse_get_type())
#define GST_AMRWBPARSE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_AMRWBPARSE, GstAmrwbParse))
#define GST_AMRWBPARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_AMRWBPARSE, GstAmrwbParse))
#define GST_IS_AMRWBPARSE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_AMRWBPARSE))
#define GST_IS_AMRWBPARSE_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_AMRWBPARSE))
typedef struct _GstAmrwbParse GstAmrwbParse;
typedef struct _GstAmrwbParseClass GstAmrwbParseClass;
struct _GstAmrwbParse {
GstElement element;
/* pads */
GstPad *sinkpad, *srcpad;
GstAdapter *adapter;
gboolean seekable;
gboolean need_header;
gint64 offset;
guint64 ts;
};
struct _GstAmrwbParseClass {
GstElementClass parent_class;
};
GType gst_amrwbparse_get_type (void);
G_END_DECLS
#endif /* __GST_AMRWBPARSE_H__ */