/usr/include/ags/audio/ags_devout.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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 | /* GSequencer - Advanced GTK Sequencer
* Copyright (C) 2005-2017 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_DEVOUT_H__
#define __AGS_DEVOUT_H__
#include <glib.h>
#include <glib-object.h>
#include <ags/lib/ags_time.h>
#include <sys/types.h>
#include <pthread.h>
#include <ags/config.h>
#ifdef AGS_WITH_ALSA
#include <alsa/asoundlib.h>
#endif
#define AGS_TYPE_DEVOUT (ags_devout_get_type())
#define AGS_DEVOUT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), AGS_TYPE_DEVOUT, AgsDevout))
#define AGS_DEVOUT_CLASS(class) (G_TYPE_CHECK_CLASS_CAST(class, AGS_TYPE_DEVOUT, AgsDevout))
#define AGS_IS_DEVOUT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), AGS_TYPE_DEVOUT))
#define AGS_IS_DEVOUT_CLASS(class) (G_TYPE_CHECK_CLASS_TYPE ((class), AGS_TYPE_DEVOUT))
#define AGS_DEVOUT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS(obj, AGS_TYPE_DEVOUT, AgsDevoutClass))
#define AGS_DEVOUT_DEFAULT_ALSA_DEVICE "hw:0,0\0"
#define AGS_DEVOUT_DEFAULT_OSS_DEVICE "/dev/dsp\0"
#define AGS_DEVOUT_DEFAULT_RING_BUFFER_SIZE (8)
typedef struct _AgsDevout AgsDevout;
typedef struct _AgsDevoutClass AgsDevoutClass;
/**
* AgsDevoutFlags:
* @AGS_DEVOUT_BUFFER0: ring-buffer 0
* @AGS_DEVOUT_BUFFER1: ring-buffer 1
* @AGS_DEVOUT_BUFFER2: ring-buffer 2
* @AGS_DEVOUT_BUFFER3: ring-buffer 3
* @AGS_DEVOUT_ATTACK_FIRST: use first attack, instead of second one
* @AGS_DEVOUT_PLAY: devout is running
* @AGS_DEVOUT_OSS: use OSS4 backend
* @AGS_DEVOUT_ALSA: use ALSA backend
* @AGS_DEVOUT_SHUTDOWN: stop playback
* @AGS_DEVOUT_START_PLAY: playback starting
* @AGS_DEVOUT_NONBLOCKING: do non-blocking calls
* @AGS_DEVOUT_INITIALIZED: the soundcard was initialized
*
* Enum values to control the behavior or indicate internal state of #AgsDevout by
* enable/disable as flags.
*/
typedef enum
{
AGS_DEVOUT_BUFFER0 = 1,
AGS_DEVOUT_BUFFER1 = 1 << 1,
AGS_DEVOUT_BUFFER2 = 1 << 2,
AGS_DEVOUT_BUFFER3 = 1 << 3,
AGS_DEVOUT_ATTACK_FIRST = 1 << 4,
AGS_DEVOUT_PLAY = 1 << 5,
AGS_DEVOUT_OSS = 1 << 6,
AGS_DEVOUT_ALSA = 1 << 7,
AGS_DEVOUT_SHUTDOWN = 1 << 8,
AGS_DEVOUT_START_PLAY = 1 << 9,
AGS_DEVOUT_NONBLOCKING = 1 << 10,
AGS_DEVOUT_INITIALIZED = 1 << 11,
}AgsDevoutFlags;
#define AGS_DEVOUT_ERROR (ags_devout_error_quark())
typedef enum{
AGS_DEVOUT_ERROR_LOCKED_SOUNDCARD,
AGS_DEVOUT_ERROR_BROKEN_CONFIGURATION,
AGS_DEVOUT_ERROR_ACCESS_TYPE_NOT_AVAILABLE,
AGS_DEVOUT_ERROR_SAMPLE_FORMAT_NOT_AVAILABLE,
AGS_DEVOUT_ERROR_CHANNELS_NOT_AVAILABLE,
AGS_DEVOUT_ERROR_SAMPLERATE_NOT_AVAILABLE,
AGS_DEVOUT_ERROR_BUFFER_SIZE_NOT_AVAILABLE,
AGS_DEVOUT_ERROR_HW_PARAMETERS_NOT_AVAILABLE,
}AgsDevoutError;
struct _AgsDevout
{
GObject object;
guint flags;
pthread_mutex_t *mutex;
pthread_mutexattr_t *mutexattr;
guint dsp_channels;
guint pcm_channels;
guint format;
guint buffer_size;
guint samplerate; // sample_rate
void** buffer;
volatile gboolean available;
guint ring_buffer_size;
guint nth_ring_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 note_offset_absolute;
guint loop_left;
guint loop_right;
gboolean do_loop;
guint loop_offset;
union{
struct _AgsOssOut{
int device_fd;
char *device;
}oss;
#ifdef AGS_WITH_ALSA
struct _AgsAlsaOut{
char *device;
int rc;
snd_pcm_t *handle;
snd_async_handler_t *ahandler;
snd_pcm_hw_params_t *params;
}alsa;
#else
struct _AgsAlsaDummyOut{
char *device;
int rc;
void *handle;
void *ahandler;
void *params;
}alsa;
#endif
}out;
GObject *application_context;
pthread_mutex_t *application_mutex;
GList *poll_fd;
GObject *notify_soundcard;
GList *audio;
};
struct _AgsDevoutClass
{
GObjectClass object;
};
GType ags_devout_get_type();
GQuark ags_devout_error_quark();
void ags_devout_switch_buffer_flag(AgsDevout *devout);
void ags_devout_adjust_delay_and_attack(AgsDevout *devout);
void ags_devout_realloc_buffer(AgsDevout *devout);
AgsDevout* ags_devout_new(GObject *application_context);
#endif /*__AGS_DEVOUT_H__*/
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