mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-01 20:30:41 +00:00
gst/audiofxgood/: resubmit with the desired name *again*
Original commit message from CVS: * gst/audiofxgood/.cvsignore: * gst/audiofxgood/Makefile.am: * gst/audiofxgood/audiofx.c: (plugin_init): * gst/audiofxgood/audiopanorama.c: (gst_audio_panorama_base_init), (gst_audio_panorama_class_init), (gst_audio_panorama_init), (gst_audio_panorama_set_property), (gst_audio_panorama_get_property), (gst_audio_panorama_get_unit_size), (gst_audio_panorama_transform_caps), (gst_audio_panorama_set_caps), (gst_audio_panorama_transform_m2s), (gst_audio_panorama_transform_s2s), (gst_audio_panorama_transform): * gst/audiofxgood/audiopanorama.h: resubmit with the desired name *again*
This commit is contained in:
Stefan Kost
parent
f9dd03ca3b
commit
1f46af88e2
16
ChangeLog
16
ChangeLog
|
|
@ -1,3 +1,19 @@
|
|||
2006-08-21 Stefan Kost <ensonic@users.sf.net>
|
||||
|
||||
* gst/audiofxgood/.cvsignore:
|
||||
* gst/audiofxgood/Makefile.am:
|
||||
* gst/audiofxgood/audiofx.c: (plugin_init):
|
||||
* gst/audiofxgood/audiopanorama.c: (gst_audio_panorama_base_init),
|
||||
(gst_audio_panorama_class_init), (gst_audio_panorama_init),
|
||||
(gst_audio_panorama_set_property),
|
||||
(gst_audio_panorama_get_property),
|
||||
(gst_audio_panorama_get_unit_size),
|
||||
(gst_audio_panorama_transform_caps), (gst_audio_panorama_set_caps),
|
||||
(gst_audio_panorama_transform_m2s),
|
||||
(gst_audio_panorama_transform_s2s), (gst_audio_panorama_transform):
|
||||
* gst/audiofxgood/audiopanorama.h:
|
||||
resubmit with the desired name *again*
|
||||
|
||||
2006-08-20 Stefan Kost <ensonic@users.sf.net>
|
||||
|
||||
* ext/gdk_pixbuf/pixbufscale.c: (gst_pixbufscale_get_unit_size):
|
||||
|
|
|
|||
6
gst/audiofx/.gitignore
vendored
Normal file
6
gst/audiofx/.gitignore
vendored
Normal file
|
|
@ -0,0 +1,6 @@
|
|||
.deps
|
||||
.libs
|
||||
*.lo
|
||||
*.la
|
||||
Makefile
|
||||
Makefile.in
|
||||
19
gst/audiofx/Makefile.am
Normal file
19
gst/audiofx/Makefile.am
Normal file
|
|
@ -0,0 +1,19 @@
|
|||
# plugindir is set in configure
|
||||
|
||||
plugin_LTLIBRARIES = libgstaudiofxgood.la
|
||||
|
||||
# sources used to compile this plug-in
|
||||
libgstaudiofxgood_la_SOURCES = audiofx.c\
|
||||
audiopanorama.c
|
||||
|
||||
# flags used to compile this plugin
|
||||
libgstaudiofxgood_la_CFLAGS = $(GST_CFLAGS) \
|
||||
$(GST_BASE_CFLAGS) \
|
||||
$(GST_CONTROLLER_CFLAGS)
|
||||
libgstaudiofxgood_la_LIBADD = $(GST_LIBS) \
|
||||
$(GST_BASE_LIBS) \
|
||||
$(GST_CONTROLLER_LIBS)
|
||||
libgstaudiofxgood_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
|
||||
|
||||
# headers we need but don't want installed
|
||||
noinst_HEADERS = audiopanorama.h
|
||||
49
gst/audiofx/audiofx.c
Normal file
49
gst/audiofx/audiofx.c
Normal file
|
|
@ -0,0 +1,49 @@
|
|||
/*
|
||||
* GStreamer
|
||||
* Copyright (C) 2006 Stefan Kost <ensonic@users.sf.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 <gst/gst.h>
|
||||
#include <gst/controller/gstcontroller.h>
|
||||
|
||||
#include "audiopanorama.h"
|
||||
|
||||
/* entry point to initialize the plug-in
|
||||
* initialize the plug-in itself
|
||||
* register the element factories and pad templates
|
||||
* register the features
|
||||
*/
|
||||
static gboolean
|
||||
plugin_init (GstPlugin * plugin)
|
||||
{
|
||||
/* initialize gst controller library */
|
||||
gst_controller_init (NULL, NULL);
|
||||
|
||||
return gst_element_register (plugin, "audiopanorama", GST_RANK_NONE,
|
||||
GST_TYPE_AUDIO_PANORAMA);
|
||||
}
|
||||
|
||||
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
||||
GST_VERSION_MINOR,
|
||||
"audiofxgood",
|
||||
"Audio effects plugin",
|
||||
plugin_init, VERSION, "LGPL", "GStreamer", "http://gstreamer.net/")
|
||||
365
gst/audiofx/audiopanorama.c
Normal file
365
gst/audiofx/audiopanorama.c
Normal file
|
|
@ -0,0 +1,365 @@
|
|||
/*
|
||||
* GStreamer
|
||||
* Copyright (C) 2006 Stefan Kost <ensonic@users.sf.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.
|
||||
*/
|
||||
|
||||
/**
|
||||
* SECTION:gstaudiopanorama
|
||||
* @short_description: audio strereo pan effect
|
||||
*
|
||||
* <refsect2>
|
||||
* Echo effect with controllable effect-ratio, delay-time and feedback.
|
||||
* <title>Example launch line</title>
|
||||
* <para>
|
||||
* <programlisting>
|
||||
* gst-launch audiotestsrc wave=saw ! audiopanorama panorama=-100 ! alsasink
|
||||
* gst-launch filesrc location="melo1.ogg" ! oggdemux ! vorbisdec ! audioconvert ! audiopanorama panorama=-100 ! alsasink
|
||||
* </programlisting>
|
||||
* In the latter example the echo is applied to the input signal of the
|
||||
* soundcard (like a microphone).
|
||||
* </para>
|
||||
* </refsect2>
|
||||
*/
|
||||
|
||||
/* FIXME: also support 32/64 bit float audio, and maybe 8/24 bit integer */
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include "config.h"
|
||||
#endif
|
||||
|
||||
#include <gst/gst.h>
|
||||
#include <gst/base/gstbasetransform.h>
|
||||
#include <gst/controller/gstcontroller.h>
|
||||
|
||||
#include "audiopanorama.h"
|
||||
|
||||
#define GST_CAT_DEFAULT gst_audio_panorama_debug
|
||||
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
|
||||
|
||||
static const GstElementDetails element_details =
|
||||
GST_ELEMENT_DETAILS ("AudioPanorama",
|
||||
"Filter/Effect/Audio",
|
||||
"Positions audio streams in the stereo panorama",
|
||||
"Stefan Kost <ensonic@users.sf.net>");
|
||||
|
||||
/* Filter signals and args */
|
||||
enum
|
||||
{
|
||||
/* FILL ME */
|
||||
LAST_SIGNAL
|
||||
};
|
||||
|
||||
enum
|
||||
{
|
||||
PROP_0,
|
||||
PROP_PANORAMA
|
||||
};
|
||||
|
||||
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
|
||||
GST_PAD_SINK,
|
||||
GST_PAD_ALWAYS,
|
||||
GST_STATIC_CAPS ("audio/x-raw-int, "
|
||||
"rate = (int) [ 1, MAX ], "
|
||||
"channels = (int) [ 1, 2 ], "
|
||||
"endianness = (int) BYTE_ORDER, "
|
||||
"width = (int) 16, " "depth = (int) 16, " "signed = (boolean) true")
|
||||
);
|
||||
|
||||
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
|
||||
GST_PAD_SRC,
|
||||
GST_PAD_ALWAYS,
|
||||
GST_STATIC_CAPS ("audio/x-raw-int, "
|
||||
"rate = (int) [ 1, MAX ], "
|
||||
"channels = (int) 2, "
|
||||
"endianness = (int) BYTE_ORDER, "
|
||||
"width = (int) 16, " "depth = (int) 16, " "signed = (boolean) true")
|
||||
);
|
||||
|
||||
#define DEBUG_INIT(bla) \
|
||||
GST_DEBUG_CATEGORY_INIT (gst_audio_panorama_debug, "audiopanorama", 0, "audiopanorama plugin");
|
||||
|
||||
GST_BOILERPLATE_FULL (GstAudioPanorama, gst_audio_panorama, GstBaseTransform,
|
||||
GST_TYPE_BASE_TRANSFORM, DEBUG_INIT);
|
||||
|
||||
static void gst_audio_panorama_set_property (GObject * object, guint prop_id,
|
||||
const GValue * value, GParamSpec * pspec);
|
||||
static void gst_audio_panorama_get_property (GObject * object, guint prop_id,
|
||||
GValue * value, GParamSpec * pspec);
|
||||
|
||||
static gboolean gst_audio_panorama_get_unit_size (GstBaseTransform * base,
|
||||
GstCaps * caps, guint * size);
|
||||
static GstCaps *gst_audio_panorama_transform_caps (GstBaseTransform * base,
|
||||
GstPadDirection direction, GstCaps * caps);
|
||||
static gboolean gst_audio_panorama_set_caps (GstBaseTransform * base,
|
||||
GstCaps * incaps, GstCaps * outcaps);
|
||||
|
||||
static void gst_audio_panorama_transform_m2s (GstAudioPanorama * filter,
|
||||
gint16 * idata, gint16 * odata, guint num_samples);
|
||||
static void gst_audio_panorama_transform_s2s (GstAudioPanorama * filter,
|
||||
gint16 * idata, gint16 * odata, guint num_samples);
|
||||
|
||||
static GstFlowReturn gst_audio_panorama_transform (GstBaseTransform * base,
|
||||
GstBuffer * inbuf, GstBuffer * outbuf);
|
||||
|
||||
/* GObject vmethod implementations */
|
||||
|
||||
static void
|
||||
gst_audio_panorama_base_init (gpointer klass)
|
||||
{
|
||||
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
|
||||
|
||||
gst_element_class_add_pad_template (element_class,
|
||||
gst_static_pad_template_get (&src_template));
|
||||
gst_element_class_add_pad_template (element_class,
|
||||
gst_static_pad_template_get (&sink_template));
|
||||
gst_element_class_set_details (element_class, &element_details);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audio_panorama_class_init (GstAudioPanoramaClass * klass)
|
||||
{
|
||||
GObjectClass *gobject_class;
|
||||
|
||||
gobject_class = (GObjectClass *) klass;
|
||||
gobject_class->set_property = gst_audio_panorama_set_property;
|
||||
gobject_class->get_property = gst_audio_panorama_get_property;
|
||||
|
||||
g_object_class_install_property (gobject_class, PROP_PANORAMA,
|
||||
g_param_spec_int ("panorama", "Panorama",
|
||||
"Position in stereo panorama (-100 left -> 100 right)", -100, 100, 0,
|
||||
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
|
||||
|
||||
GST_BASE_TRANSFORM_CLASS (klass)->get_unit_size =
|
||||
GST_DEBUG_FUNCPTR (gst_audio_panorama_get_unit_size);
|
||||
GST_BASE_TRANSFORM_CLASS (klass)->transform_caps =
|
||||
GST_DEBUG_FUNCPTR (gst_audio_panorama_transform_caps);
|
||||
GST_BASE_TRANSFORM_CLASS (klass)->set_caps =
|
||||
GST_DEBUG_FUNCPTR (gst_audio_panorama_set_caps);
|
||||
GST_BASE_TRANSFORM_CLASS (klass)->transform =
|
||||
GST_DEBUG_FUNCPTR (gst_audio_panorama_transform);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audio_panorama_init (GstAudioPanorama * filter,
|
||||
GstAudioPanoramaClass * klass)
|
||||
{
|
||||
filter->panorama = 0;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audio_panorama_set_property (GObject * object, guint prop_id,
|
||||
const GValue * value, GParamSpec * pspec)
|
||||
{
|
||||
GstAudioPanorama *filter = GST_AUDIO_PANORAMA (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case PROP_PANORAMA:
|
||||
filter->panorama = g_value_get_int (value);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audio_panorama_get_property (GObject * object, guint prop_id,
|
||||
GValue * value, GParamSpec * pspec)
|
||||
{
|
||||
GstAudioPanorama *filter = GST_AUDIO_PANORAMA (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case PROP_PANORAMA:
|
||||
g_value_set_int (value, filter->panorama);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* GstBaseTransform vmethod implementations */
|
||||
|
||||
static gboolean
|
||||
gst_audio_panorama_get_unit_size (GstBaseTransform * base, GstCaps * caps,
|
||||
guint * size)
|
||||
{
|
||||
gint width, channels;
|
||||
GstStructure *structure;
|
||||
gboolean ret;
|
||||
|
||||
g_assert (size);
|
||||
|
||||
/* this works for both float and int */
|
||||
structure = gst_caps_get_structure (caps, 0);
|
||||
ret = gst_structure_get_int (structure, "width", &width);
|
||||
ret &= gst_structure_get_int (structure, "channels", &channels);
|
||||
|
||||
*size = width * channels / 8;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static GstCaps *
|
||||
gst_audio_panorama_transform_caps (GstBaseTransform * base,
|
||||
GstPadDirection direction, GstCaps * caps)
|
||||
{
|
||||
GstCaps *res;
|
||||
GstStructure *structure;
|
||||
|
||||
/* transform caps gives one single caps so we can just replace
|
||||
* the channel property with our range. */
|
||||
res = gst_caps_copy (caps);
|
||||
structure = gst_caps_get_structure (res, 0);
|
||||
if (direction == GST_PAD_SRC) {
|
||||
GST_INFO ("allow 1-2 channels");
|
||||
gst_structure_set (structure, "channels", GST_TYPE_INT_RANGE, 1, 2, NULL);
|
||||
} else {
|
||||
GST_INFO ("allow 2 channels");
|
||||
gst_structure_set (structure, "channels", G_TYPE_INT, 2, NULL);
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_audio_panorama_set_caps (GstBaseTransform * base, GstCaps * incaps,
|
||||
GstCaps * outcaps)
|
||||
{
|
||||
GstAudioPanorama *filter = GST_AUDIO_PANORAMA (base);
|
||||
const GstStructure *structure;
|
||||
gboolean ret;
|
||||
gint channels;
|
||||
|
||||
/*GST_INFO ("incaps are %" GST_PTR_FORMAT, incaps); */
|
||||
|
||||
structure = gst_caps_get_structure (incaps, 0);
|
||||
ret = gst_structure_get_int (structure, "channels", &channels);
|
||||
if (!ret)
|
||||
goto no_channels;
|
||||
/* FIXME: also check width and gst_structure_get_name()?int/float */
|
||||
|
||||
GST_DEBUG ("try to process input with %d channels", channels);
|
||||
|
||||
/* set processing function */
|
||||
switch (channels) {
|
||||
case 1:
|
||||
filter->process = gst_audio_panorama_transform_m2s;
|
||||
ret = TRUE;
|
||||
break;
|
||||
case 2:
|
||||
filter->process = gst_audio_panorama_transform_s2s;
|
||||
ret = TRUE;
|
||||
break;
|
||||
default:
|
||||
filter->process = NULL;
|
||||
ret = FALSE;
|
||||
GST_WARNING ("can't process input with %d channels", channels);
|
||||
}
|
||||
|
||||
no_channels:
|
||||
GST_DEBUG ("no channels in caps");
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audio_panorama_transform_m2s (GstAudioPanorama * filter, gint16 * idata,
|
||||
gint16 * odata, guint num_samples)
|
||||
{
|
||||
guint i;
|
||||
gdouble val;
|
||||
glong lval, rval;
|
||||
gdouble rpan, lpan;
|
||||
|
||||
/* pan: -100 0 100
|
||||
* lpan: 1.0 0.5 0.0
|
||||
* rpan: 0.0 0.5 1.0
|
||||
*/
|
||||
rpan = (gdouble) (filter->panorama + 100) / 200.0;
|
||||
lpan = 1.0 - rpan;
|
||||
|
||||
for (i = 0; i < num_samples; i++) {
|
||||
val = (gdouble) * idata++;
|
||||
|
||||
lval = (glong) (val * lpan);
|
||||
rval = (glong) (val * rpan);
|
||||
|
||||
*odata++ = (gint16) CLAMP (lval, G_MININT16, G_MAXINT16);
|
||||
*odata++ = (gint16) CLAMP (rval, G_MININT16, G_MAXINT16);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audio_panorama_transform_s2s (GstAudioPanorama * filter, gint16 * idata,
|
||||
gint16 * odata, guint num_samples)
|
||||
{
|
||||
guint i;
|
||||
glong lval, rval;
|
||||
gdouble lival, rival;
|
||||
gdouble lrpan, llpan, rrpan, rlpan;
|
||||
|
||||
/* pan: -100 0 100
|
||||
* llpan: 1.0 1.0 0.0
|
||||
* lrpan: 1.0 0.0 0.0
|
||||
* rrpan: 0.0 1.0 1.0
|
||||
* rlpan: 0.0 0.0 1.0
|
||||
*/
|
||||
if (filter->panorama > 0) {
|
||||
rlpan = (gdouble) filter->panorama / 100.0;
|
||||
llpan = 1.0 - rlpan;
|
||||
lrpan = 0.0;
|
||||
rrpan = 1.0;
|
||||
} else {
|
||||
rrpan = (gdouble) (100 + filter->panorama) / 100.0;
|
||||
lrpan = 1.0 - rrpan;
|
||||
rlpan = 0.0;
|
||||
llpan = 1.0;
|
||||
}
|
||||
|
||||
for (i = 0; i < num_samples; i++) {
|
||||
lival = (gdouble) * idata++;
|
||||
rival = (gdouble) * idata++;
|
||||
|
||||
lval = lival * llpan + rival * lrpan;
|
||||
rval = lival * rlpan + rival * rrpan;
|
||||
|
||||
*odata++ = (gint16) CLAMP (lval, G_MININT16, G_MAXINT16);
|
||||
*odata++ = (gint16) CLAMP (rval, G_MININT16, G_MAXINT16);
|
||||
}
|
||||
}
|
||||
|
||||
/* this function does the actual processing
|
||||
*/
|
||||
static GstFlowReturn
|
||||
gst_audio_panorama_transform (GstBaseTransform * base, GstBuffer * inbuf,
|
||||
GstBuffer * outbuf)
|
||||
{
|
||||
GstAudioPanorama *filter = GST_AUDIO_PANORAMA (base);
|
||||
guint num_samples = GST_BUFFER_SIZE (outbuf) / (2 * sizeof (gint16));
|
||||
|
||||
if (!gst_buffer_is_writable (outbuf))
|
||||
return GST_FLOW_OK;
|
||||
|
||||
if (GST_CLOCK_TIME_IS_VALID (GST_BUFFER_TIMESTAMP (outbuf)))
|
||||
gst_object_sync_values (G_OBJECT (filter), GST_BUFFER_TIMESTAMP (outbuf));
|
||||
|
||||
filter->process (filter, (gint16 *) GST_BUFFER_DATA (inbuf),
|
||||
(gint16 *) GST_BUFFER_DATA (outbuf), num_samples);
|
||||
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
56
gst/audiofx/audiopanorama.h
Normal file
56
gst/audiofx/audiopanorama.h
Normal file
|
|
@ -0,0 +1,56 @@
|
|||
/*
|
||||
* GStreamer
|
||||
* Copyright (C) 2006 Stefan Kost <ensonic@users.sf.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.
|
||||
*/
|
||||
|
||||
#ifndef __GST_AUDIO_PANORAMA_H__
|
||||
#define __GST_AUDIO_PANORAMA_H__
|
||||
|
||||
#include <gst/gst.h>
|
||||
#include <gst/base/gstbasetransform.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GST_TYPE_AUDIO_PANORAMA (gst_audio_panorama_get_type())
|
||||
#define GST_AUDIO_PANORAMA(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_PANORAMA,GstAudioPanorama))
|
||||
#define GST_IS_AUDIO_PANORAMA(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_PANORAMA))
|
||||
#define GST_AUDIO_PANORAMA_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_PANORAMA,GstAudioPanoramaClass))
|
||||
#define GST_IS_AUDIO_PANORAMA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_PANORAMA))
|
||||
#define GST_AUDIO_PANORAMA_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_PANORAMA,GstAudioPanoramaClass))
|
||||
|
||||
typedef struct _GstAudioPanorama GstAudioPanorama;
|
||||
typedef struct _GstAudioPanoramaClass GstAudioPanoramaClass;
|
||||
|
||||
struct _GstAudioPanorama {
|
||||
GstBaseTransform element;
|
||||
|
||||
gint panorama;
|
||||
|
||||
/* < private > */
|
||||
void (*process)(GstAudioPanorama*, gint16*, gint16*, guint);
|
||||
};
|
||||
|
||||
struct _GstAudioPanoramaClass {
|
||||
GstBaseTransformClass parent_class;
|
||||
};
|
||||
|
||||
GType gst_audio_panorama_get_type (void);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_AUDIO_PANORAMA_H__ */
|
||||
6
gst/audiofxgood/.gitignore
vendored
Normal file
6
gst/audiofxgood/.gitignore
vendored
Normal file
|
|
@ -0,0 +1,6 @@
|
|||
.deps
|
||||
.libs
|
||||
*.lo
|
||||
*.la
|
||||
Makefile
|
||||
Makefile.in
|
||||
19
gst/audiofxgood/Makefile.am
Normal file
19
gst/audiofxgood/Makefile.am
Normal file
|
|
@ -0,0 +1,19 @@
|
|||
# plugindir is set in configure
|
||||
|
||||
plugin_LTLIBRARIES = libgstaudiofxgood.la
|
||||
|
||||
# sources used to compile this plug-in
|
||||
libgstaudiofxgood_la_SOURCES = audiofx.c\
|
||||
audiopanorama.c
|
||||
|
||||
# flags used to compile this plugin
|
||||
libgstaudiofxgood_la_CFLAGS = $(GST_CFLAGS) \
|
||||
$(GST_BASE_CFLAGS) \
|
||||
$(GST_CONTROLLER_CFLAGS)
|
||||
libgstaudiofxgood_la_LIBADD = $(GST_LIBS) \
|
||||
$(GST_BASE_LIBS) \
|
||||
$(GST_CONTROLLER_LIBS)
|
||||
libgstaudiofxgood_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
|
||||
|
||||
# headers we need but don't want installed
|
||||
noinst_HEADERS = audiopanorama.h
|
||||
49
gst/audiofxgood/audiofx.c
Normal file
49
gst/audiofxgood/audiofx.c
Normal file
|
|
@ -0,0 +1,49 @@
|
|||
/*
|
||||
* GStreamer
|
||||
* Copyright (C) 2006 Stefan Kost <ensonic@users.sf.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 <gst/gst.h>
|
||||
#include <gst/controller/gstcontroller.h>
|
||||
|
||||
#include "audiopanorama.h"
|
||||
|
||||
/* entry point to initialize the plug-in
|
||||
* initialize the plug-in itself
|
||||
* register the element factories and pad templates
|
||||
* register the features
|
||||
*/
|
||||
static gboolean
|
||||
plugin_init (GstPlugin * plugin)
|
||||
{
|
||||
/* initialize gst controller library */
|
||||
gst_controller_init (NULL, NULL);
|
||||
|
||||
return gst_element_register (plugin, "audiopanorama", GST_RANK_NONE,
|
||||
GST_TYPE_AUDIO_PANORAMA);
|
||||
}
|
||||
|
||||
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
||||
GST_VERSION_MINOR,
|
||||
"audiofxgood",
|
||||
"Audio effects plugin",
|
||||
plugin_init, VERSION, "LGPL", "GStreamer", "http://gstreamer.net/")
|
||||
365
gst/audiofxgood/audiopanorama.c
Normal file
365
gst/audiofxgood/audiopanorama.c
Normal file
|
|
@ -0,0 +1,365 @@
|
|||
/*
|
||||
* GStreamer
|
||||
* Copyright (C) 2006 Stefan Kost <ensonic@users.sf.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.
|
||||
*/
|
||||
|
||||
/**
|
||||
* SECTION:gstaudiopanorama
|
||||
* @short_description: audio strereo pan effect
|
||||
*
|
||||
* <refsect2>
|
||||
* Echo effect with controllable effect-ratio, delay-time and feedback.
|
||||
* <title>Example launch line</title>
|
||||
* <para>
|
||||
* <programlisting>
|
||||
* gst-launch audiotestsrc wave=saw ! audiopanorama panorama=-100 ! alsasink
|
||||
* gst-launch filesrc location="melo1.ogg" ! oggdemux ! vorbisdec ! audioconvert ! audiopanorama panorama=-100 ! alsasink
|
||||
* </programlisting>
|
||||
* In the latter example the echo is applied to the input signal of the
|
||||
* soundcard (like a microphone).
|
||||
* </para>
|
||||
* </refsect2>
|
||||
*/
|
||||
|
||||
/* FIXME: also support 32/64 bit float audio, and maybe 8/24 bit integer */
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include "config.h"
|
||||
#endif
|
||||
|
||||
#include <gst/gst.h>
|
||||
#include <gst/base/gstbasetransform.h>
|
||||
#include <gst/controller/gstcontroller.h>
|
||||
|
||||
#include "audiopanorama.h"
|
||||
|
||||
#define GST_CAT_DEFAULT gst_audio_panorama_debug
|
||||
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
|
||||
|
||||
static const GstElementDetails element_details =
|
||||
GST_ELEMENT_DETAILS ("AudioPanorama",
|
||||
"Filter/Effect/Audio",
|
||||
"Positions audio streams in the stereo panorama",
|
||||
"Stefan Kost <ensonic@users.sf.net>");
|
||||
|
||||
/* Filter signals and args */
|
||||
enum
|
||||
{
|
||||
/* FILL ME */
|
||||
LAST_SIGNAL
|
||||
};
|
||||
|
||||
enum
|
||||
{
|
||||
PROP_0,
|
||||
PROP_PANORAMA
|
||||
};
|
||||
|
||||
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
|
||||
GST_PAD_SINK,
|
||||
GST_PAD_ALWAYS,
|
||||
GST_STATIC_CAPS ("audio/x-raw-int, "
|
||||
"rate = (int) [ 1, MAX ], "
|
||||
"channels = (int) [ 1, 2 ], "
|
||||
"endianness = (int) BYTE_ORDER, "
|
||||
"width = (int) 16, " "depth = (int) 16, " "signed = (boolean) true")
|
||||
);
|
||||
|
||||
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
|
||||
GST_PAD_SRC,
|
||||
GST_PAD_ALWAYS,
|
||||
GST_STATIC_CAPS ("audio/x-raw-int, "
|
||||
"rate = (int) [ 1, MAX ], "
|
||||
"channels = (int) 2, "
|
||||
"endianness = (int) BYTE_ORDER, "
|
||||
"width = (int) 16, " "depth = (int) 16, " "signed = (boolean) true")
|
||||
);
|
||||
|
||||
#define DEBUG_INIT(bla) \
|
||||
GST_DEBUG_CATEGORY_INIT (gst_audio_panorama_debug, "audiopanorama", 0, "audiopanorama plugin");
|
||||
|
||||
GST_BOILERPLATE_FULL (GstAudioPanorama, gst_audio_panorama, GstBaseTransform,
|
||||
GST_TYPE_BASE_TRANSFORM, DEBUG_INIT);
|
||||
|
||||
static void gst_audio_panorama_set_property (GObject * object, guint prop_id,
|
||||
const GValue * value, GParamSpec * pspec);
|
||||
static void gst_audio_panorama_get_property (GObject * object, guint prop_id,
|
||||
GValue * value, GParamSpec * pspec);
|
||||
|
||||
static gboolean gst_audio_panorama_get_unit_size (GstBaseTransform * base,
|
||||
GstCaps * caps, guint * size);
|
||||
static GstCaps *gst_audio_panorama_transform_caps (GstBaseTransform * base,
|
||||
GstPadDirection direction, GstCaps * caps);
|
||||
static gboolean gst_audio_panorama_set_caps (GstBaseTransform * base,
|
||||
GstCaps * incaps, GstCaps * outcaps);
|
||||
|
||||
static void gst_audio_panorama_transform_m2s (GstAudioPanorama * filter,
|
||||
gint16 * idata, gint16 * odata, guint num_samples);
|
||||
static void gst_audio_panorama_transform_s2s (GstAudioPanorama * filter,
|
||||
gint16 * idata, gint16 * odata, guint num_samples);
|
||||
|
||||
static GstFlowReturn gst_audio_panorama_transform (GstBaseTransform * base,
|
||||
GstBuffer * inbuf, GstBuffer * outbuf);
|
||||
|
||||
/* GObject vmethod implementations */
|
||||
|
||||
static void
|
||||
gst_audio_panorama_base_init (gpointer klass)
|
||||
{
|
||||
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
|
||||
|
||||
gst_element_class_add_pad_template (element_class,
|
||||
gst_static_pad_template_get (&src_template));
|
||||
gst_element_class_add_pad_template (element_class,
|
||||
gst_static_pad_template_get (&sink_template));
|
||||
gst_element_class_set_details (element_class, &element_details);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audio_panorama_class_init (GstAudioPanoramaClass * klass)
|
||||
{
|
||||
GObjectClass *gobject_class;
|
||||
|
||||
gobject_class = (GObjectClass *) klass;
|
||||
gobject_class->set_property = gst_audio_panorama_set_property;
|
||||
gobject_class->get_property = gst_audio_panorama_get_property;
|
||||
|
||||
g_object_class_install_property (gobject_class, PROP_PANORAMA,
|
||||
g_param_spec_int ("panorama", "Panorama",
|
||||
"Position in stereo panorama (-100 left -> 100 right)", -100, 100, 0,
|
||||
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
|
||||
|
||||
GST_BASE_TRANSFORM_CLASS (klass)->get_unit_size =
|
||||
GST_DEBUG_FUNCPTR (gst_audio_panorama_get_unit_size);
|
||||
GST_BASE_TRANSFORM_CLASS (klass)->transform_caps =
|
||||
GST_DEBUG_FUNCPTR (gst_audio_panorama_transform_caps);
|
||||
GST_BASE_TRANSFORM_CLASS (klass)->set_caps =
|
||||
GST_DEBUG_FUNCPTR (gst_audio_panorama_set_caps);
|
||||
GST_BASE_TRANSFORM_CLASS (klass)->transform =
|
||||
GST_DEBUG_FUNCPTR (gst_audio_panorama_transform);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audio_panorama_init (GstAudioPanorama * filter,
|
||||
GstAudioPanoramaClass * klass)
|
||||
{
|
||||
filter->panorama = 0;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audio_panorama_set_property (GObject * object, guint prop_id,
|
||||
const GValue * value, GParamSpec * pspec)
|
||||
{
|
||||
GstAudioPanorama *filter = GST_AUDIO_PANORAMA (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case PROP_PANORAMA:
|
||||
filter->panorama = g_value_get_int (value);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audio_panorama_get_property (GObject * object, guint prop_id,
|
||||
GValue * value, GParamSpec * pspec)
|
||||
{
|
||||
GstAudioPanorama *filter = GST_AUDIO_PANORAMA (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case PROP_PANORAMA:
|
||||
g_value_set_int (value, filter->panorama);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* GstBaseTransform vmethod implementations */
|
||||
|
||||
static gboolean
|
||||
gst_audio_panorama_get_unit_size (GstBaseTransform * base, GstCaps * caps,
|
||||
guint * size)
|
||||
{
|
||||
gint width, channels;
|
||||
GstStructure *structure;
|
||||
gboolean ret;
|
||||
|
||||
g_assert (size);
|
||||
|
||||
/* this works for both float and int */
|
||||
structure = gst_caps_get_structure (caps, 0);
|
||||
ret = gst_structure_get_int (structure, "width", &width);
|
||||
ret &= gst_structure_get_int (structure, "channels", &channels);
|
||||
|
||||
*size = width * channels / 8;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static GstCaps *
|
||||
gst_audio_panorama_transform_caps (GstBaseTransform * base,
|
||||
GstPadDirection direction, GstCaps * caps)
|
||||
{
|
||||
GstCaps *res;
|
||||
GstStructure *structure;
|
||||
|
||||
/* transform caps gives one single caps so we can just replace
|
||||
* the channel property with our range. */
|
||||
res = gst_caps_copy (caps);
|
||||
structure = gst_caps_get_structure (res, 0);
|
||||
if (direction == GST_PAD_SRC) {
|
||||
GST_INFO ("allow 1-2 channels");
|
||||
gst_structure_set (structure, "channels", GST_TYPE_INT_RANGE, 1, 2, NULL);
|
||||
} else {
|
||||
GST_INFO ("allow 2 channels");
|
||||
gst_structure_set (structure, "channels", G_TYPE_INT, 2, NULL);
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_audio_panorama_set_caps (GstBaseTransform * base, GstCaps * incaps,
|
||||
GstCaps * outcaps)
|
||||
{
|
||||
GstAudioPanorama *filter = GST_AUDIO_PANORAMA (base);
|
||||
const GstStructure *structure;
|
||||
gboolean ret;
|
||||
gint channels;
|
||||
|
||||
/*GST_INFO ("incaps are %" GST_PTR_FORMAT, incaps); */
|
||||
|
||||
structure = gst_caps_get_structure (incaps, 0);
|
||||
ret = gst_structure_get_int (structure, "channels", &channels);
|
||||
if (!ret)
|
||||
goto no_channels;
|
||||
/* FIXME: also check width and gst_structure_get_name()?int/float */
|
||||
|
||||
GST_DEBUG ("try to process input with %d channels", channels);
|
||||
|
||||
/* set processing function */
|
||||
switch (channels) {
|
||||
case 1:
|
||||
filter->process = gst_audio_panorama_transform_m2s;
|
||||
ret = TRUE;
|
||||
break;
|
||||
case 2:
|
||||
filter->process = gst_audio_panorama_transform_s2s;
|
||||
ret = TRUE;
|
||||
break;
|
||||
default:
|
||||
filter->process = NULL;
|
||||
ret = FALSE;
|
||||
GST_WARNING ("can't process input with %d channels", channels);
|
||||
}
|
||||
|
||||
no_channels:
|
||||
GST_DEBUG ("no channels in caps");
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audio_panorama_transform_m2s (GstAudioPanorama * filter, gint16 * idata,
|
||||
gint16 * odata, guint num_samples)
|
||||
{
|
||||
guint i;
|
||||
gdouble val;
|
||||
glong lval, rval;
|
||||
gdouble rpan, lpan;
|
||||
|
||||
/* pan: -100 0 100
|
||||
* lpan: 1.0 0.5 0.0
|
||||
* rpan: 0.0 0.5 1.0
|
||||
*/
|
||||
rpan = (gdouble) (filter->panorama + 100) / 200.0;
|
||||
lpan = 1.0 - rpan;
|
||||
|
||||
for (i = 0; i < num_samples; i++) {
|
||||
val = (gdouble) * idata++;
|
||||
|
||||
lval = (glong) (val * lpan);
|
||||
rval = (glong) (val * rpan);
|
||||
|
||||
*odata++ = (gint16) CLAMP (lval, G_MININT16, G_MAXINT16);
|
||||
*odata++ = (gint16) CLAMP (rval, G_MININT16, G_MAXINT16);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audio_panorama_transform_s2s (GstAudioPanorama * filter, gint16 * idata,
|
||||
gint16 * odata, guint num_samples)
|
||||
{
|
||||
guint i;
|
||||
glong lval, rval;
|
||||
gdouble lival, rival;
|
||||
gdouble lrpan, llpan, rrpan, rlpan;
|
||||
|
||||
/* pan: -100 0 100
|
||||
* llpan: 1.0 1.0 0.0
|
||||
* lrpan: 1.0 0.0 0.0
|
||||
* rrpan: 0.0 1.0 1.0
|
||||
* rlpan: 0.0 0.0 1.0
|
||||
*/
|
||||
if (filter->panorama > 0) {
|
||||
rlpan = (gdouble) filter->panorama / 100.0;
|
||||
llpan = 1.0 - rlpan;
|
||||
lrpan = 0.0;
|
||||
rrpan = 1.0;
|
||||
} else {
|
||||
rrpan = (gdouble) (100 + filter->panorama) / 100.0;
|
||||
lrpan = 1.0 - rrpan;
|
||||
rlpan = 0.0;
|
||||
llpan = 1.0;
|
||||
}
|
||||
|
||||
for (i = 0; i < num_samples; i++) {
|
||||
lival = (gdouble) * idata++;
|
||||
rival = (gdouble) * idata++;
|
||||
|
||||
lval = lival * llpan + rival * lrpan;
|
||||
rval = lival * rlpan + rival * rrpan;
|
||||
|
||||
*odata++ = (gint16) CLAMP (lval, G_MININT16, G_MAXINT16);
|
||||
*odata++ = (gint16) CLAMP (rval, G_MININT16, G_MAXINT16);
|
||||
}
|
||||
}
|
||||
|
||||
/* this function does the actual processing
|
||||
*/
|
||||
static GstFlowReturn
|
||||
gst_audio_panorama_transform (GstBaseTransform * base, GstBuffer * inbuf,
|
||||
GstBuffer * outbuf)
|
||||
{
|
||||
GstAudioPanorama *filter = GST_AUDIO_PANORAMA (base);
|
||||
guint num_samples = GST_BUFFER_SIZE (outbuf) / (2 * sizeof (gint16));
|
||||
|
||||
if (!gst_buffer_is_writable (outbuf))
|
||||
return GST_FLOW_OK;
|
||||
|
||||
if (GST_CLOCK_TIME_IS_VALID (GST_BUFFER_TIMESTAMP (outbuf)))
|
||||
gst_object_sync_values (G_OBJECT (filter), GST_BUFFER_TIMESTAMP (outbuf));
|
||||
|
||||
filter->process (filter, (gint16 *) GST_BUFFER_DATA (inbuf),
|
||||
(gint16 *) GST_BUFFER_DATA (outbuf), num_samples);
|
||||
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
56
gst/audiofxgood/audiopanorama.h
Normal file
56
gst/audiofxgood/audiopanorama.h
Normal file
|
|
@ -0,0 +1,56 @@
|
|||
/*
|
||||
* GStreamer
|
||||
* Copyright (C) 2006 Stefan Kost <ensonic@users.sf.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.
|
||||
*/
|
||||
|
||||
#ifndef __GST_AUDIO_PANORAMA_H__
|
||||
#define __GST_AUDIO_PANORAMA_H__
|
||||
|
||||
#include <gst/gst.h>
|
||||
#include <gst/base/gstbasetransform.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GST_TYPE_AUDIO_PANORAMA (gst_audio_panorama_get_type())
|
||||
#define GST_AUDIO_PANORAMA(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_PANORAMA,GstAudioPanorama))
|
||||
#define GST_IS_AUDIO_PANORAMA(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_PANORAMA))
|
||||
#define GST_AUDIO_PANORAMA_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_PANORAMA,GstAudioPanoramaClass))
|
||||
#define GST_IS_AUDIO_PANORAMA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_PANORAMA))
|
||||
#define GST_AUDIO_PANORAMA_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_PANORAMA,GstAudioPanoramaClass))
|
||||
|
||||
typedef struct _GstAudioPanorama GstAudioPanorama;
|
||||
typedef struct _GstAudioPanoramaClass GstAudioPanoramaClass;
|
||||
|
||||
struct _GstAudioPanorama {
|
||||
GstBaseTransform element;
|
||||
|
||||
gint panorama;
|
||||
|
||||
/* < private > */
|
||||
void (*process)(GstAudioPanorama*, gint16*, gint16*, guint);
|
||||
};
|
||||
|
||||
struct _GstAudioPanoramaClass {
|
||||
GstBaseTransformClass parent_class;
|
||||
};
|
||||
|
||||
GType gst_audio_panorama_get_type (void);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_AUDIO_PANORAMA_H__ */
|
||||
Loading…
Reference in a new issue