/usr/include/ags/audio/ags_fifoout.h is in libags-audio-dev 1.4.24-1ubuntu2.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 | /* GSequencer - Advanced GTK Sequencer
* Copyright (C) 2005-2015 Joël Krähemann
*
* This file is part of GSequencer.
*
* GSequencer is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GSequencer 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GSequencer. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __AGS_FIFOOUT_H__
#define __AGS_FIFOOUT_H__
#include <glib.h>
#include <glib-object.h>
#include <ags/lib/ags_time.h>
#include <sys/types.h>
#include <pthread.h>
#define AGS_TYPE_FIFOOUT (ags_fifoout_get_type())
#define AGS_FIFOOUT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), AGS_TYPE_FIFOOUT, AgsFifoout))
#define AGS_FIFOOUT_CLASS(class) (G_TYPE_CHECK_CLASS_CAST(class, AGS_TYPE_FIFOOUT, AgsFifoout))
#define AGS_IS_FIFOOUT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), AGS_TYPE_FIFOOUT))
#define AGS_IS_FIFOOUT_CLASS(class) (G_TYPE_CHECK_CLASS_TYPE ((class), AGS_TYPE_FIFOOUT))
#define AGS_FIFOOUT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS(obj, AGS_TYPE_FIFOOUT, AgsFifooutClass))
#define AGS_FIFOOUT_DEFAULT_ALSA_DEVICE "hw:0,0\0"
#define AGS_FIFOOUT_DEFAULT_OSS_DEVICE "/dev/dsp\0"
typedef struct _AgsFifoout AgsFifoout;
typedef struct _AgsFifooutClass AgsFifooutClass;
/**
* AgsFifooutFlags:
* @AGS_FIFOOUT_BUFFER0: ring-buffer 0
* @AGS_FIFOOUT_BUFFER1: ring-buffer 1
* @AGS_FIFOOUT_BUFFER2: ring-buffer 2
* @AGS_FIFOOUT_BUFFER3: ring-buffer 3
* @AGS_FIFOOUT_ATTACK_FIRST: use first attack, instead of second one
* @AGS_FIFOOUT_PLAY: use first attack, instead of second one
* @AGS_FIFOOUT_SHUTDOWN: stop playback
* @AGS_FIFOOUT_START_PLAY: playback starting
* @AGS_FIFOOUT_NONBLOCKING: do non-blocking calls
* @AGS_FIFOOUT_INITIALIZED: the soundcard was initialized
*
* Enum values to control the behavior or indicate internal state of #AgsFifoout by
* enable/disable as flags.
*/
typedef enum
{
AGS_FIFOOUT_BUFFER0 = 1,
AGS_FIFOOUT_BUFFER1 = 1 << 1,
AGS_FIFOOUT_BUFFER2 = 1 << 2,
AGS_FIFOOUT_BUFFER3 = 1 << 3,
AGS_FIFOOUT_ATTACK_FIRST = 1 << 4,
AGS_FIFOOUT_PLAY = 1 << 5,
AGS_FIFOOUT_SHUTDOWN = 1 << 6,
AGS_FIFOOUT_START_PLAY = 1 << 7,
AGS_FIFOOUT_NONBLOCKING = 1 << 8,
AGS_FIFOOUT_INITIALIZED = 1 << 9,
}AgsFifooutFlags;
#define AGS_FIFOOUT_ERROR (ags_fifoout_error_quark())
typedef enum{
AGS_FIFOOUT_ERROR_LOCKED_SOUNDCARD,
}AgsFifooutError;
struct _AgsFifoout
{
GObject object;
guint flags;
guint dsp_channels;
guint pcm_channels;
guint format;
guint buffer_size;
guint samplerate; // sample_rate
void** buffer;
unsigned char **ring_buffer;
double bpm; // beats per minute
gdouble delay_factor;
gdouble *delay; // count of tics within buffer size
guint *attack; // where currently tic resides in the stream's offset, measured in 1/64 of bpm
gdouble tact_counter;
gdouble delay_counter; // next time attack changeing when delay_counter == delay
guint tic_counter; // in the range of default period
guint note_offset;
guint loop_left;
guint loop_right;
gboolean do_loop;
guint loop_offset;
gchar *device;
int fifo_fd;
GObject *application_context;
pthread_mutex_t *application_mutex;
GList *poll_fd;
GList *audio;
};
struct _AgsFifooutClass
{
GObjectClass object;
};
GType ags_fifoout_get_type();
GQuark ags_fifoout_error_quark();
void ags_fifoout_adjust_delay_and_attack(AgsFifoout *fifoout);
void ags_fifoout_realloc_buffer(AgsFifoout *fifoout);
AgsFifoout* ags_fifoout_new(GObject *application_context);
#endif /*__AGS_FIFOOUT_H__*/
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