mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-09 05:38:58 +00:00
535 lines
16 KiB
C
535 lines
16 KiB
C
/*
|
|
* GStreamer
|
|
* Copyright (C) 2006 Stefan Kost <ensonic@users.sf.net>
|
|
* Copyright (C) 2006 Sebastian Dröge <slomo@circular-chaos.org>
|
|
*
|
|
* 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., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
/**
|
|
* SECTION:element-audiopanorama
|
|
* @title: audiopanorama
|
|
*
|
|
* Stereo panorama effect with controllable pan position. One can choose between the default psychoacoustic panning method,
|
|
* which keeps the same perceived loudness, and a simple panning method that just controls the volume on one channel.
|
|
*
|
|
* ## Example launch line
|
|
* |[
|
|
* gst-launch-1.0 audiotestsrc wave=saw ! audiopanorama panorama=-1.00 ! alsasink
|
|
* gst-launch-1.0 filesrc location="melo1.ogg" ! oggdemux ! vorbisdec ! audioconvert ! audiopanorama panorama=-1.00 ! alsasink
|
|
* gst-launch-1.0 audiotestsrc wave=saw ! audioconvert ! audiopanorama panorama=-1.00 ! audioconvert ! alsasink
|
|
* gst-launch-1.0 audiotestsrc wave=saw ! audioconvert ! audiopanorama method=simple panorama=-0.50 ! audioconvert ! alsasink
|
|
* ]|
|
|
*
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <string.h>
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/base/gstbasetransform.h>
|
|
|
|
#ifdef HAVE_ORC
|
|
#include <orc/orcfunctions.h>
|
|
#else
|
|
#define orc_memset memset
|
|
#endif
|
|
|
|
#include "audiopanorama.h"
|
|
#include "audiopanoramaorc.h"
|
|
|
|
#define GST_CAT_DEFAULT gst_audio_panorama_debug
|
|
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
|
|
|
|
/* Filter signals and args */
|
|
enum
|
|
{
|
|
PROP_0,
|
|
PROP_PANORAMA,
|
|
PROP_METHOD
|
|
};
|
|
|
|
#define GST_TYPE_AUDIO_PANORAMA_METHOD (gst_audio_panorama_method_get_type ())
|
|
static GType
|
|
gst_audio_panorama_method_get_type (void)
|
|
{
|
|
static GType gtype = 0;
|
|
|
|
if (gtype == 0) {
|
|
static const GEnumValue values[] = {
|
|
{METHOD_PSYCHOACOUSTIC, "Psychoacoustic Panning (default)",
|
|
"psychoacoustic"},
|
|
{METHOD_SIMPLE, "Simple Panning", "simple"},
|
|
{0, NULL, NULL}
|
|
};
|
|
|
|
gtype = g_enum_register_static ("GstAudioPanoramaMethod", values);
|
|
}
|
|
return gtype;
|
|
}
|
|
|
|
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
|
|
GST_PAD_SINK,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS ("audio/x-raw, "
|
|
"format = (string) { " GST_AUDIO_NE (F32) ", " GST_AUDIO_NE (S16) "}, "
|
|
"rate = (int) [ 1, MAX ], " "channels = (int) [ 1, 2 ], "
|
|
"layout = (string) interleaved")
|
|
);
|
|
|
|
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
|
|
GST_PAD_SRC,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS ("audio/x-raw, "
|
|
"format = (string) { " GST_AUDIO_NE (F32) ", " GST_AUDIO_NE (S16) "}, "
|
|
"rate = (int) [ 1, MAX ], " "channels = (int) 2, "
|
|
"layout = (string) interleaved")
|
|
);
|
|
|
|
G_DEFINE_TYPE (GstAudioPanorama, gst_audio_panorama, GST_TYPE_BASE_TRANSFORM);
|
|
|
|
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, gsize * size);
|
|
static GstCaps *gst_audio_panorama_transform_caps (GstBaseTransform * base,
|
|
GstPadDirection direction, GstCaps * caps, GstCaps * filter);
|
|
static gboolean gst_audio_panorama_set_caps (GstBaseTransform * base,
|
|
GstCaps * incaps, GstCaps * outcaps);
|
|
|
|
static void gst_audio_panorama_m2s_int (gfloat pan,
|
|
gint16 * idata, gint16 * odata, guint num_samples);
|
|
static void gst_audio_panorama_s2s_int (gfloat pan,
|
|
gint16 * idata, gint16 * odata, guint num_samples);
|
|
static void gst_audio_panorama_m2s_float (gfloat pan,
|
|
gfloat * idata, gfloat * odata, guint num_samples);
|
|
static void gst_audio_panorama_s2s_float (gfloat pan,
|
|
gfloat * idata, gfloat * odata, guint num_samples);
|
|
|
|
static void gst_audio_panorama_m2s_int_simple (gfloat pan,
|
|
gint16 * idata, gint16 * odata, guint num_samples);
|
|
static void gst_audio_panorama_s2s_int_simple (gfloat pan,
|
|
gint16 * idata, gint16 * odata, guint num_samples);
|
|
static void gst_audio_panorama_m2s_float_simple (gfloat pan,
|
|
gfloat * idata, gfloat * odata, guint num_samples);
|
|
static void gst_audio_panorama_s2s_float_simple (gfloat pan,
|
|
gfloat * idata, gfloat * odata, guint num_samples);
|
|
|
|
static GstFlowReturn gst_audio_panorama_transform (GstBaseTransform * base,
|
|
GstBuffer * inbuf, GstBuffer * outbuf);
|
|
|
|
|
|
/* Table with processing functions: [channels][format][method] */
|
|
static const GstAudioPanoramaProcessFunc panorama_process_functions[2][2][2] = {
|
|
{
|
|
{
|
|
(GstAudioPanoramaProcessFunc) gst_audio_panorama_m2s_int,
|
|
(GstAudioPanoramaProcessFunc) gst_audio_panorama_m2s_int_simple},
|
|
{
|
|
(GstAudioPanoramaProcessFunc) gst_audio_panorama_m2s_float,
|
|
(GstAudioPanoramaProcessFunc) gst_audio_panorama_m2s_float_simple}
|
|
},
|
|
{
|
|
{
|
|
(GstAudioPanoramaProcessFunc) gst_audio_panorama_s2s_int,
|
|
(GstAudioPanoramaProcessFunc) gst_audio_panorama_s2s_int_simple},
|
|
{
|
|
(GstAudioPanoramaProcessFunc) gst_audio_panorama_s2s_float,
|
|
(GstAudioPanoramaProcessFunc) gst_audio_panorama_s2s_float_simple}
|
|
}
|
|
};
|
|
|
|
/* GObject vmethod implementations */
|
|
|
|
static void
|
|
gst_audio_panorama_class_init (GstAudioPanoramaClass * klass)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstElementClass *gstelement_class;
|
|
|
|
GST_DEBUG_CATEGORY_INIT (gst_audio_panorama_debug, "audiopanorama", 0,
|
|
"audiopanorama element");
|
|
|
|
gobject_class = (GObjectClass *) klass;
|
|
gstelement_class = (GstElementClass *) 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_float ("panorama", "Panorama",
|
|
"Position in stereo panorama (-1.0 left -> 1.0 right)", -1.0, 1.0,
|
|
0.0,
|
|
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
|
|
/**
|
|
* GstAudioPanorama:method:
|
|
*
|
|
* Panning method: psychoacoustic mode keeps the same perceived loudness,
|
|
* while simple mode just controls the volume of one channel. It's merely
|
|
* a matter of taste which method should be chosen.
|
|
*/
|
|
g_object_class_install_property (gobject_class, PROP_METHOD,
|
|
g_param_spec_enum ("method", "Panning method",
|
|
"Psychoacoustic mode keeps same perceived loudness, "
|
|
"simple mode just controls volume of one channel.",
|
|
GST_TYPE_AUDIO_PANORAMA_METHOD, METHOD_PSYCHOACOUSTIC,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
gst_element_class_set_static_metadata (gstelement_class, "Stereo positioning",
|
|
"Filter/Effect/Audio",
|
|
"Positions audio streams in the stereo panorama",
|
|
"Stefan Kost <ensonic@users.sf.net>");
|
|
|
|
gst_element_class_add_static_pad_template (gstelement_class, &src_template);
|
|
gst_element_class_add_static_pad_template (gstelement_class, &sink_template);
|
|
|
|
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);
|
|
|
|
gst_type_mark_as_plugin_api (GST_TYPE_AUDIO_PANORAMA_METHOD, 0);
|
|
}
|
|
|
|
static void
|
|
gst_audio_panorama_init (GstAudioPanorama * filter)
|
|
{
|
|
|
|
filter->panorama = 0;
|
|
filter->method = METHOD_PSYCHOACOUSTIC;
|
|
gst_audio_info_init (&filter->info);
|
|
filter->process = NULL;
|
|
|
|
gst_base_transform_set_gap_aware (GST_BASE_TRANSFORM (filter), TRUE);
|
|
}
|
|
|
|
static gboolean
|
|
gst_audio_panorama_set_process_function (GstAudioPanorama * filter,
|
|
GstAudioInfo * info)
|
|
{
|
|
gint channel_index, format_index, method_index;
|
|
const GstAudioFormatInfo *finfo = info->finfo;
|
|
|
|
/* set processing function */
|
|
channel_index = GST_AUDIO_INFO_CHANNELS (info) - 1;
|
|
if (channel_index > 1 || channel_index < 0) {
|
|
filter->process = NULL;
|
|
return FALSE;
|
|
}
|
|
|
|
format_index = GST_AUDIO_FORMAT_INFO_IS_FLOAT (finfo) ? 1 : 0;
|
|
method_index = filter->method;
|
|
|
|
filter->process =
|
|
panorama_process_functions[channel_index][format_index][method_index];
|
|
return TRUE;
|
|
}
|
|
|
|
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_float (value);
|
|
break;
|
|
case PROP_METHOD:
|
|
filter->method = g_value_get_enum (value);
|
|
gst_audio_panorama_set_process_function (filter, &filter->info);
|
|
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_float (value, filter->panorama);
|
|
break;
|
|
case PROP_METHOD:
|
|
g_value_set_enum (value, filter->method);
|
|
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,
|
|
gsize * size)
|
|
{
|
|
GstAudioInfo info;
|
|
|
|
g_assert (size);
|
|
|
|
if (!gst_audio_info_from_caps (&info, caps))
|
|
return FALSE;
|
|
|
|
*size = GST_AUDIO_INFO_BPF (&info);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstCaps *
|
|
gst_audio_panorama_transform_caps (GstBaseTransform * base,
|
|
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
|
|
{
|
|
GstCaps *res;
|
|
GstStructure *structure;
|
|
gint i;
|
|
|
|
/* replace the channel property with our range. */
|
|
res = gst_caps_copy (caps);
|
|
for (i = 0; i < gst_caps_get_size (res); i++) {
|
|
structure = gst_caps_get_structure (res, i);
|
|
if (direction == GST_PAD_SRC) {
|
|
GST_INFO_OBJECT (base, "[%d] allow 1-2 channels", i);
|
|
gst_structure_set (structure, "channels", GST_TYPE_INT_RANGE, 1, 2, NULL);
|
|
} else {
|
|
GST_INFO_OBJECT (base, "[%d] allow 2 channels", i);
|
|
gst_structure_set (structure, "channels", G_TYPE_INT, 2, NULL);
|
|
}
|
|
gst_structure_remove_field (structure, "channel-mask");
|
|
}
|
|
GST_DEBUG_OBJECT (base, "transformed %" GST_PTR_FORMAT, res);
|
|
|
|
if (filter) {
|
|
GstCaps *intersection;
|
|
|
|
GST_DEBUG_OBJECT (base, "Using filter caps %" GST_PTR_FORMAT, filter);
|
|
intersection =
|
|
gst_caps_intersect_full (filter, res, GST_CAPS_INTERSECT_FIRST);
|
|
gst_caps_unref (res);
|
|
res = intersection;
|
|
GST_DEBUG_OBJECT (base, "Intersection %" GST_PTR_FORMAT, res);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static gboolean
|
|
gst_audio_panorama_set_caps (GstBaseTransform * base, GstCaps * incaps,
|
|
GstCaps * outcaps)
|
|
{
|
|
GstAudioPanorama *filter = GST_AUDIO_PANORAMA (base);
|
|
GstAudioInfo info;
|
|
|
|
/*GST_INFO ("incaps are %" GST_PTR_FORMAT, incaps); */
|
|
if (!gst_audio_info_from_caps (&info, incaps))
|
|
goto no_format;
|
|
|
|
GST_DEBUG ("try to process %d input with %d channels",
|
|
GST_AUDIO_INFO_FORMAT (&info), GST_AUDIO_INFO_CHANNELS (&info));
|
|
|
|
if (!gst_audio_panorama_set_process_function (filter, &info))
|
|
goto no_format;
|
|
|
|
filter->info = info;
|
|
|
|
return TRUE;
|
|
|
|
no_format:
|
|
{
|
|
GST_DEBUG ("invalid caps");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* psychoacoustic processing functions */
|
|
|
|
/* mono to stereo panning
|
|
* pan: -1.0 0.0 1.0
|
|
* l: 1.0 0.5 0.0
|
|
* r: 0.0 0.5 1.0
|
|
*
|
|
* FIXME: we should use -3db (1/sqtr(2)) for 50:50
|
|
*/
|
|
static void
|
|
gst_audio_panorama_m2s_int (gfloat pan, gint16 * idata, gint16 * odata, guint n)
|
|
{
|
|
gfloat r = (pan + 1.0) / 2.0;
|
|
audiopanoramam_orc_process_s16_ch1_psy (odata, idata, 1.0 - r, r, n);
|
|
}
|
|
|
|
static void
|
|
gst_audio_panorama_m2s_float (gfloat pan, gfloat * idata,
|
|
gfloat * odata, guint n)
|
|
{
|
|
gfloat r = (pan + 1.0) / 2.0;
|
|
audiopanoramam_orc_process_f32_ch1_psy (odata, idata, 1.0 - r, r, n);
|
|
}
|
|
|
|
/* stereo balance
|
|
* pan: -1.0 0.0 1.0
|
|
* ll: 1.0 1.0 0.0
|
|
* lr: 1.0 0.0 0.0
|
|
* rr: 0.0 1.0 1.0
|
|
* rl: 0.0 0.0 1.0
|
|
*/
|
|
static void
|
|
gst_audio_panorama_s2s_int (gfloat pan, gint16 * idata, gint16 * odata, guint n)
|
|
{
|
|
if (pan == 0.0) {
|
|
audiopanoramam_orc_process_s16_ch2_none (odata, idata, n);
|
|
} else if (pan > 0.0) {
|
|
gfloat rl = pan;
|
|
gfloat ll = 1.0 - rl;
|
|
audiopanoramam_orc_process_s16_ch2_psy_right (odata, idata, ll, rl, n);
|
|
} else {
|
|
gfloat rr = 1.0 + pan;
|
|
gfloat lr = 1.0 - rr;
|
|
audiopanoramam_orc_process_s16_ch2_psy_left (odata, idata, lr, rr, n);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_audio_panorama_s2s_float (gfloat pan, gfloat * idata,
|
|
gfloat * odata, guint n)
|
|
{
|
|
if (pan == 0.0) {
|
|
audiopanoramam_orc_process_f32_ch2_none (odata, idata, n);
|
|
} else if (pan > 0.0) {
|
|
gfloat rl = pan;
|
|
gfloat ll = 1.0 - rl;
|
|
audiopanoramam_orc_process_f32_ch2_psy_right (odata, idata, ll, rl, n);
|
|
} else {
|
|
gfloat rr = 1.0 + pan;
|
|
gfloat lr = 1.0 - rr;
|
|
audiopanoramam_orc_process_f32_ch2_psy_left (odata, idata, lr, rr, n);
|
|
}
|
|
}
|
|
|
|
/* simple processing functions */
|
|
|
|
static void
|
|
gst_audio_panorama_m2s_int_simple (gfloat pan, gint16 * idata,
|
|
gint16 * odata, guint n)
|
|
{
|
|
if (pan == 0.0) {
|
|
audiopanoramam_orc_process_s16_ch1_none (odata, idata, n);
|
|
} else if (pan > 0.0) {
|
|
gfloat lpan = 1.0 - pan;
|
|
audiopanoramam_orc_process_s16_ch1_sim_left (odata, idata, lpan, n);
|
|
} else {
|
|
gfloat rpan = 1.0 + pan;
|
|
audiopanoramam_orc_process_s16_ch1_sim_right (odata, idata, rpan, n);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_audio_panorama_s2s_int_simple (gfloat pan, gint16 * idata,
|
|
gint16 * odata, guint n)
|
|
{
|
|
if (pan == 0.0) {
|
|
audiopanoramam_orc_process_s16_ch2_none (odata, idata, n);
|
|
} else if (pan > 0.0) {
|
|
gfloat lpan = 1.0 - pan;
|
|
audiopanoramam_orc_process_s16_ch2_sim_left (odata, idata, lpan, n);
|
|
} else {
|
|
gfloat rpan = 1.0 + pan;
|
|
audiopanoramam_orc_process_s16_ch2_sim_right (odata, idata, rpan, n);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_audio_panorama_m2s_float_simple (gfloat pan, gfloat * idata,
|
|
gfloat * odata, guint n)
|
|
{
|
|
if (pan == 0.0) {
|
|
audiopanoramam_orc_process_f32_ch1_none (odata, idata, n);
|
|
} else if (pan > 0.0) {
|
|
gfloat lpan = 1.0 - pan;
|
|
audiopanoramam_orc_process_f32_ch1_sim_left (odata, idata, lpan, n);
|
|
} else {
|
|
gfloat rpan = 1.0 + pan;
|
|
audiopanoramam_orc_process_f32_ch1_sim_right (odata, idata, rpan, n);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_audio_panorama_s2s_float_simple (gfloat pan, gfloat * idata,
|
|
gfloat * odata, guint n)
|
|
{
|
|
if (pan == 0.0) {
|
|
audiopanoramam_orc_process_f32_ch2_none (odata, idata, n);
|
|
} else if (pan > 0.0) {
|
|
gfloat lpan = 1.0 - pan;
|
|
audiopanoramam_orc_process_f32_ch2_sim_left (odata, idata, lpan, n);
|
|
} else {
|
|
gfloat rpan = 1.0 + pan;
|
|
audiopanoramam_orc_process_f32_ch2_sim_right (odata, idata, rpan, n);
|
|
}
|
|
}
|
|
|
|
/* this function does the actual processing
|
|
*/
|
|
static GstFlowReturn
|
|
gst_audio_panorama_transform (GstBaseTransform * base, GstBuffer * inbuf,
|
|
GstBuffer * outbuf)
|
|
{
|
|
GstAudioPanorama *filter = GST_AUDIO_PANORAMA (base);
|
|
GstClockTime ts;
|
|
GstMapInfo inmap, outmap;
|
|
|
|
ts = gst_segment_to_stream_time (&base->segment, GST_FORMAT_TIME,
|
|
GST_BUFFER_TIMESTAMP (inbuf));
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (ts)) {
|
|
GST_DEBUG_OBJECT (filter, "sync to %" GST_TIME_FORMAT, GST_TIME_ARGS (ts));
|
|
gst_object_sync_values (GST_OBJECT (filter), ts);
|
|
}
|
|
|
|
gst_buffer_map (outbuf, &outmap, GST_MAP_WRITE);
|
|
|
|
if (G_UNLIKELY (GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_GAP))) {
|
|
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_GAP);
|
|
orc_memset (outmap.data, 0, outmap.size);
|
|
} else {
|
|
/* output is always stereo, input is mono or stereo,
|
|
* and info describes input format */
|
|
guint num_samples = outmap.size / (2 * GST_AUDIO_INFO_BPS (&filter->info));
|
|
|
|
gst_buffer_map (inbuf, &inmap, GST_MAP_READ);
|
|
filter->process (filter->panorama, inmap.data, outmap.data, num_samples);
|
|
gst_buffer_unmap (inbuf, &inmap);
|
|
}
|
|
|
|
gst_buffer_unmap (outbuf, &outmap);
|
|
|
|
return GST_FLOW_OK;
|
|
}
|