mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-08 13:18:52 +00:00
432 lines
12 KiB
C
432 lines
12 KiB
C
/* GStreamer
|
|
* Copyright (C) 2010 David Schleef <ds@schleef.org>
|
|
* Copyright (C) 2005 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/base/gstbasesrc.h>
|
|
#include <gst/base/gstadapter.h>
|
|
#include <gst/audio/multichannel.h>
|
|
|
|
#include <flite/flite.h>
|
|
|
|
#define GST_TYPE_FLITE_TEST_SRC \
|
|
(gst_flite_test_src_get_type())
|
|
#define GST_FLITE_TEST_SRC(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FLITE_TEST_SRC,GstFliteTestSrc))
|
|
#define GST_FLITE_TEST_SRC_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FLITE_TEST_SRC,GstFliteTestSrcClass))
|
|
#define GST_IS_FLITE_TEST_SRC(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FLITE_TEST_SRC))
|
|
#define GST_IS_FLITE_TEST_SRC_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FLITE_TEST_SRC))
|
|
|
|
typedef struct _GstFliteTestSrc GstFliteTestSrc;
|
|
typedef struct _GstFliteTestSrcClass GstFliteTestSrcClass;
|
|
|
|
struct _GstFliteTestSrc
|
|
{
|
|
GstBaseSrc parent;
|
|
|
|
GstAdapter *adapter;
|
|
|
|
int samplerate;
|
|
int n_channels;
|
|
GstAudioChannelPosition *layout;
|
|
|
|
int samples_per_buffer;
|
|
|
|
int channel;
|
|
|
|
cst_voice *voice;
|
|
};
|
|
|
|
struct _GstFliteTestSrcClass
|
|
{
|
|
GstBaseSrcClass parent_class;
|
|
};
|
|
|
|
GType gst_flite_test_src_get_type (void);
|
|
|
|
|
|
|
|
GST_DEBUG_CATEGORY_STATIC (flite_test_src_debug);
|
|
#define GST_CAT_DEFAULT flite_test_src_debug
|
|
|
|
#define DEFAULT_SAMPLES_PER_BUFFER 1024
|
|
|
|
enum
|
|
{
|
|
PROP_0,
|
|
PROP_SAMPLES_PER_BUFFER,
|
|
PROP_LAST
|
|
};
|
|
|
|
|
|
static GstStaticPadTemplate gst_flite_test_src_src_template =
|
|
GST_STATIC_PAD_TEMPLATE ("src",
|
|
GST_PAD_SRC,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS ("audio/x-raw-int, "
|
|
"endianness = (int) BYTE_ORDER, "
|
|
"signed = (boolean) true, "
|
|
"width = (int) 16, "
|
|
"depth = (int) 16, " "rate = (int) 48000, " "channels = (int) [1,8]")
|
|
);
|
|
|
|
|
|
GST_BOILERPLATE (GstFliteTestSrc, gst_flite_test_src, GstBaseSrc,
|
|
GST_TYPE_BASE_SRC);
|
|
|
|
static void gst_flite_test_src_set_property (GObject * object,
|
|
guint prop_id, const GValue * value, GParamSpec * pspec);
|
|
static void gst_flite_test_src_get_property (GObject * object,
|
|
guint prop_id, GValue * value, GParamSpec * pspec);
|
|
|
|
static gboolean gst_flite_test_src_start (GstBaseSrc * basesrc);
|
|
static gboolean gst_flite_test_src_stop (GstBaseSrc * basesrc);
|
|
static GstFlowReturn gst_flite_test_src_create (GstBaseSrc * basesrc,
|
|
guint64 offset, guint length, GstBuffer ** buffer);
|
|
static gboolean
|
|
gst_flite_test_src_set_caps (GstBaseSrc * basesrc, GstCaps * caps);
|
|
|
|
|
|
static void
|
|
gst_flite_test_src_base_init (gpointer g_class)
|
|
{
|
|
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
|
|
|
|
GST_DEBUG_CATEGORY_INIT (flite_test_src_debug, "flitetestsrc", 0,
|
|
"Flite Audio Test Source");
|
|
|
|
gst_element_class_add_pad_template (element_class,
|
|
gst_static_pad_template_get (&gst_flite_test_src_src_template));
|
|
gst_element_class_set_details_simple (element_class,
|
|
"Flite speech test source", "Source/Audio",
|
|
"Creates audio test signals identifying channels",
|
|
"David Schleef <ds@schleef.org>");
|
|
}
|
|
|
|
static void
|
|
gst_flite_test_src_class_init (GstFliteTestSrcClass * klass)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstBaseSrcClass *gstbasesrc_class;
|
|
|
|
gobject_class = (GObjectClass *) klass;
|
|
gstbasesrc_class = (GstBaseSrcClass *) klass;
|
|
|
|
gobject_class->set_property = gst_flite_test_src_set_property;
|
|
gobject_class->get_property = gst_flite_test_src_get_property;
|
|
|
|
gstbasesrc_class->start = GST_DEBUG_FUNCPTR (gst_flite_test_src_start);
|
|
gstbasesrc_class->stop = GST_DEBUG_FUNCPTR (gst_flite_test_src_stop);
|
|
gstbasesrc_class->create = GST_DEBUG_FUNCPTR (gst_flite_test_src_create);
|
|
gstbasesrc_class->set_caps = GST_DEBUG_FUNCPTR (gst_flite_test_src_set_caps);
|
|
|
|
g_object_class_install_property (gobject_class, PROP_SAMPLES_PER_BUFFER,
|
|
g_param_spec_int ("samplesperbuffer", "Samples per buffer",
|
|
"Number of samples in each outgoing buffer",
|
|
1, G_MAXINT, DEFAULT_SAMPLES_PER_BUFFER,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
}
|
|
|
|
static void
|
|
gst_flite_test_src_init (GstFliteTestSrc * src, GstFliteTestSrcClass * g_class)
|
|
{
|
|
#if 0
|
|
GstPad *pad = GST_BASE_SRC_PAD (src);
|
|
#endif
|
|
|
|
src->samplerate = 48000;
|
|
src->samples_per_buffer = DEFAULT_SAMPLES_PER_BUFFER;
|
|
|
|
/* we operate in time */
|
|
gst_base_src_set_format (GST_BASE_SRC (src), GST_FORMAT_TIME);
|
|
|
|
gst_base_src_set_blocksize (GST_BASE_SRC (src), -1);
|
|
}
|
|
|
|
static gboolean
|
|
gst_flite_test_src_set_caps (GstBaseSrc * basesrc, GstCaps * caps)
|
|
{
|
|
GstFliteTestSrc *src = GST_FLITE_TEST_SRC (basesrc);
|
|
GstStructure *structure;
|
|
gboolean ret;
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
|
|
ret = gst_structure_get_int (structure, "channels", &src->n_channels);
|
|
|
|
g_free (src->layout);
|
|
|
|
if (src->n_channels < 3) {
|
|
src->layout = g_malloc (sizeof (GstAudioChannelPosition) * 2);
|
|
if (src->n_channels == 1) {
|
|
src->layout[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_MONO;
|
|
} else {
|
|
src->layout[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
|
|
src->layout[1] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
|
|
}
|
|
} else {
|
|
src->layout = gst_audio_get_channel_positions (structure);
|
|
if (src->layout == NULL) {
|
|
/* thanks, libgstaudio, for returning us NULL instead of
|
|
* doing this yourself. */
|
|
int i;
|
|
src->layout =
|
|
g_malloc (sizeof (GstAudioChannelPosition) * src->n_channels);
|
|
for (i = 0; i < src->n_channels; i++) {
|
|
src->layout[i] = GST_AUDIO_CHANNEL_POSITION_NONE;
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#if 0
|
|
static gboolean
|
|
gst_flite_test_src_query (GstBaseSrc * basesrc, GstQuery * query)
|
|
{
|
|
GstFliteTestSrc *src = GST_FLITE_TEST_SRC (basesrc);
|
|
gboolean res = FALSE;
|
|
|
|
switch (GST_QUERY_TYPE (query)) {
|
|
case GST_QUERY_CONVERT:
|
|
{
|
|
GstFormat src_fmt, dest_fmt;
|
|
gint64 src_val, dest_val;
|
|
|
|
gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
|
|
if (src_fmt == dest_fmt) {
|
|
dest_val = src_val;
|
|
goto done;
|
|
}
|
|
|
|
switch (src_fmt) {
|
|
case GST_FORMAT_DEFAULT:
|
|
switch (dest_fmt) {
|
|
case GST_FORMAT_TIME:
|
|
/* samples to time */
|
|
dest_val =
|
|
gst_util_uint64_scale_int (src_val, GST_SECOND,
|
|
src->samplerate);
|
|
break;
|
|
default:
|
|
goto error;
|
|
}
|
|
break;
|
|
case GST_FORMAT_TIME:
|
|
switch (dest_fmt) {
|
|
case GST_FORMAT_DEFAULT:
|
|
/* time to samples */
|
|
dest_val =
|
|
gst_util_uint64_scale_int (src_val, src->samplerate,
|
|
GST_SECOND);
|
|
break;
|
|
default:
|
|
goto error;
|
|
}
|
|
break;
|
|
default:
|
|
goto error;
|
|
}
|
|
done:
|
|
gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
|
|
res = TRUE;
|
|
break;
|
|
}
|
|
default:
|
|
res = GST_BASE_SRC_CLASS (parent_class)->query (basesrc, query);
|
|
break;
|
|
}
|
|
|
|
return res;
|
|
/* ERROR */
|
|
error:
|
|
{
|
|
GST_DEBUG_OBJECT (src, "query failed");
|
|
return FALSE;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
|
|
#if 0
|
|
static void
|
|
gst_flite_test_src_get_times (GstBaseSrc * basesrc, GstBuffer * buffer,
|
|
GstClockTime * start, GstClockTime * end)
|
|
{
|
|
/* for live sources, sync on the timestamp of the buffer */
|
|
if (gst_base_src_is_live (basesrc)) {
|
|
GstClockTime timestamp = GST_BUFFER_TIMESTAMP (buffer);
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
|
|
/* get duration to calculate end time */
|
|
GstClockTime duration = GST_BUFFER_DURATION (buffer);
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (duration)) {
|
|
*end = timestamp + duration;
|
|
}
|
|
*start = timestamp;
|
|
}
|
|
} else {
|
|
*start = -1;
|
|
*end = -1;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
cst_voice *register_cmu_us_kal ();
|
|
|
|
|
|
|
|
static gboolean
|
|
gst_flite_test_src_start (GstBaseSrc * basesrc)
|
|
{
|
|
GstFliteTestSrc *src = GST_FLITE_TEST_SRC (basesrc);
|
|
|
|
src->adapter = gst_adapter_new ();
|
|
|
|
src->voice = register_cmu_us_kal ();
|
|
src->n_channels = 2;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_flite_test_src_stop (GstBaseSrc * basesrc)
|
|
{
|
|
GstFliteTestSrc *src = GST_FLITE_TEST_SRC (basesrc);
|
|
|
|
g_object_unref (src->adapter);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static char *
|
|
get_channel_name (GstFliteTestSrc * src, int channel)
|
|
{
|
|
const char *numbers[10] = {
|
|
"zero", "one", "two", "three", "four", "five", "six", "seven", "eight",
|
|
"nine"
|
|
};
|
|
const char *names[GST_AUDIO_CHANNEL_POSITION_NUM] = {
|
|
"mono", "front left", "front right", "rear center",
|
|
"rear left", "rear right", "low frequency effects",
|
|
"front center", "front left center", "front right center",
|
|
"side left", "side right",
|
|
"none"
|
|
};
|
|
const char *name;
|
|
|
|
if (src->layout[channel] == GST_AUDIO_CHANNEL_POSITION_INVALID) {
|
|
name = "invalid";
|
|
} else {
|
|
name = names[src->layout[channel]];
|
|
}
|
|
|
|
return g_strdup_printf ("%s, %s", numbers[channel], name);
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_flite_test_src_create (GstBaseSrc * basesrc, guint64 offset,
|
|
guint length, GstBuffer ** buffer)
|
|
{
|
|
GstFliteTestSrc *src;
|
|
int n_bytes;
|
|
|
|
src = GST_FLITE_TEST_SRC (basesrc);
|
|
|
|
n_bytes = src->n_channels * sizeof (gint16) * src->samples_per_buffer;
|
|
|
|
while (gst_adapter_available (src->adapter) < n_bytes) {
|
|
GstBuffer *buf;
|
|
char *text;
|
|
int i;
|
|
gint16 *data;
|
|
cst_wave *wave;
|
|
|
|
text = get_channel_name (src, src->channel);
|
|
|
|
wave = flite_text_to_wave (text, src->voice);
|
|
g_free (text);
|
|
cst_wave_resample (wave, 48000);
|
|
|
|
GST_DEBUG ("type %s, sample_rate %d, num_samples %d, num_channels %d",
|
|
wave->type, wave->sample_rate, wave->num_samples, wave->num_channels);
|
|
|
|
buf = gst_buffer_new_and_alloc (src->n_channels * sizeof (gint16) *
|
|
wave->num_samples);
|
|
|
|
data = (void *) GST_BUFFER_DATA (buf);
|
|
memset (data, 0, src->n_channels * sizeof (gint16) * wave->num_samples);
|
|
for (i = 0; i < wave->num_samples; i++) {
|
|
data[i * src->n_channels + src->channel] = wave->samples[i];
|
|
}
|
|
|
|
src->channel++;
|
|
if (src->channel == src->n_channels) {
|
|
src->channel = 0;
|
|
}
|
|
|
|
gst_adapter_push (src->adapter, buf);
|
|
}
|
|
|
|
*buffer = gst_adapter_take_buffer (src->adapter, n_bytes);
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static void
|
|
gst_flite_test_src_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstFliteTestSrc *src = GST_FLITE_TEST_SRC (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_SAMPLES_PER_BUFFER:
|
|
src->samples_per_buffer = g_value_get_int (value);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_flite_test_src_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstFliteTestSrc *src = GST_FLITE_TEST_SRC (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_SAMPLES_PER_BUFFER:
|
|
g_value_set_int (value, src->samples_per_buffer);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|