mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-09 10:59:39 +00:00
97 lines
3.1 KiB
C
97 lines
3.1 KiB
C
|
/* GStreamer
|
||
|
|
* Copyright (C) 2005 Sebastien Moutte <sebastien@moutte.net>
|
||
|
|
*
|
||
|
|
* gstwaveformsink.h:
|
||
|
|
*
|
||
|
|
* 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_WAVEFORMSINK_H__
|
||
|
|
#define __GST_WAVEFORMSINK_H__
|
||
|
|
|
||
|
|
#include <gst/gst.h>
|
||
|
|
#include <gst/audio/gstaudiosink.h>
|
||
|
|
|
||
|
|
#include <windows.h>
|
||
|
|
#include <mmsystem.h>
|
||
|
|
|
||
|
|
#define WAVE_FORMAT_96M08 0x00001000 /* 96 kHz, Mono, 8-bit */
|
||
|
|
#define WAVE_FORMAT_96S08 0x00002000 /* 96 kHz, Stereo, 8-bit */
|
||
|
|
#define WAVE_FORMAT_96M16 0x00004000 /* 96 kHz, Mono, 16-bit */
|
||
|
|
#define WAVE_FORMAT_96S16 0x00008000 /* 96 kHz, Stereo, 16-bit */
|
||
|
|
|
||
|
|
#define ERROR_LENGTH MAXERRORLENGTH+50
|
||
|
|
#define BUFFER_COUNT 20
|
||
|
|
#define BUFFER_SIZE 8192
|
||
|
|
|
||
|
|
G_BEGIN_DECLS
|
||
|
|
#define GST_TYPE_WAVEFORM_SINK (gst_waveform_sink_get_type())
|
||
|
|
#define GST_WAVEFORM_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WAVEFORM_SINK,GstWaveFormSink))
|
||
|
|
#define GST_WAVEFORM_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_WAVEFORM_SINK,GstWaveFormSinkClass))
|
||
|
|
#define GST_IS_WAVEFORM_SINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_WAVEFORM_SINK))
|
||
|
|
#define GST_IS_WAVEFORM_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_WAVEFORM_SINK))
|
||
|
|
typedef struct _GstWaveFormSink GstWaveFormSink;
|
||
|
|
typedef struct _GstWaveFormSinkClass GstWaveFormSinkClass;
|
||
|
|
|
||
|
|
struct _GstWaveFormSink
|
||
|
|
{
|
||
|
|
/* parent object */
|
||
|
|
GstAudioSink sink;
|
||
|
|
|
||
|
|
/* supported caps */
|
||
|
|
GstCaps *cached_caps;
|
||
|
|
|
||
|
|
/* handle to the waveform-audio output device */
|
||
|
|
HWAVEOUT hwaveout;
|
||
|
|
|
||
|
|
/* table of buffer headers */
|
||
|
|
WAVEHDR *wave_buffers;
|
||
|
|
|
||
|
|
/* critical section protecting access to the number of free buffers */
|
||
|
|
CRITICAL_SECTION critic_wave;
|
||
|
|
|
||
|
|
/* number of free buffers available */
|
||
|
|
guint free_buffers_count;
|
||
|
|
|
||
|
|
/* current free buffer where you have to write incoming data */
|
||
|
|
guint write_buffer;
|
||
|
|
|
||
|
|
/* size of buffers streamed to the device */
|
||
|
|
guint buffer_size;
|
||
|
|
|
||
|
|
/* number of buffers streamed to the device */
|
||
|
|
guint buffer_count;
|
||
|
|
|
||
|
|
/* total of bytes in queue before they are written to the device */
|
||
|
|
guint bytes_in_queue;
|
||
|
|
|
||
|
|
/* bytes per sample from setcaps used to evaluate the number samples returned by delay */
|
||
|
|
guint bytes_per_sample;
|
||
|
|
|
||
|
|
/* wave form error string */
|
||
|
|
gchar error_string[ERROR_LENGTH];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct _GstWaveFormSinkClass
|
||
|
|
{
|
||
|
|
GstAudioSinkClass parent_class;
|
||
|
|
};
|
||
|
|
|
||
|
|
GType gst_waveform_sink_get_type (void);
|
||
|
|
|
||
|
|
G_END_DECLS
|
||
|
|
#endif /* __GST_WAVEFORMSINK_H__ */
|