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/* GStreamer
* Copyright (C) 2016 Iskratel d.o.o.
* Author: Okrslar Ales <okrslar@iskratel.si>
* Copyright (C) 2016 Sebastian Dröge <sebastian@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_TONE_GENERATE_SRC_H__
#define __GST_TONE_GENERATE_SRC_H__
#include <gst/gst.h>
#include <gst/base/gstbasesrc.h>
#include <gst/audio/audio.h>
#include <spandsp.h>
G_BEGIN_DECLS
#define GST_TYPE_TONE_GENERATE_SRC \
(gst_tone_generate_src_get_type())
#define GST_TONE_GENERATE_SRC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_TONE_GENERATE_SRC,GstToneGenerateSrc))
#define GST_TONE_GENERATE_SRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_TONE_GENERATE_SRC,GstToneGenerateSrcClass))
#define GST_IS_TONE_GENERATE_SRC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_TONE_GENERATE_SRC))
#define GST_IS_TONE_GENERATE_SRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_TONE_GENERATE_SRC))
typedef struct _GstToneGenerateSrc GstToneGenerateSrc;
typedef struct _GstToneGenerateSrcClass GstToneGenerateSrcClass;
/**
* GstToneGenerateSrc:
*
* tonegeneratesrc object structure.
*/
struct _GstToneGenerateSrc {
GstPushSrc parent;
/* parameters */
gint volume; /* The level of the first frequency, in dBm0 */
gint volume2; /* The level of the second frequency, in dBm0, or the percentage modulation depth for an AM modulated tone. */
gint freq; /* The first frequency, in Hz */
gint freq2; /* 0 for no second frequency, a positive number for the second frequency, in Hz, or a negative number for an AM modulation frequency, in Hz */
gint on_time; /* On time for the first presence of tone signal. */
gint off_time; /* Off time between first and second presence of tone signal. */
gint on_time2; /* On time for the second presence of tone signal. */
gint off_time2; /* Off time after the second presence of tone signal. */
gboolean repeat; /* 0/1 if the tone repeates itself or not. */
/* audio parameters */
gint samples_per_buffer;
/*< private >*/
GstClockTime next_time; /* next timestamp */
gint64 next_sample; /* next sample to send */
/* SpanDSP */
tone_gen_state_t *tone_state;
tone_gen_descriptor_t *tone_desc;
gboolean properties_changed;
};
struct _GstToneGenerateSrcClass {
GstPushSrcClass parent_class;
};
GType gst_tone_generate_src_get_type (void);
gboolean gst_tone_generate_src_plugin_init (GstPlugin *plugin);
G_END_DECLS
#endif /* __GST_TONE_GENERATE_SRC_H__ */
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