mirror of
https://github.com/gnif/LookingGlass.git
synced 2024-11-25 14:57:20 +00:00
90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
/**
|
|
* Looking Glass
|
|
* Copyright © 2017-2023 The Looking Glass Authors
|
|
* https://looking-glass.io
|
|
*
|
|
* This program 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 2 of the License, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program 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 this program; if not, write to the Free Software Foundation, Inc., 59
|
|
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef _H_I_AUDIODEV_
|
|
#define _H_I_AUDIODEV_
|
|
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
|
|
typedef int (*LG_AudioPullFn)(uint8_t * dst, int frames);
|
|
typedef void (*LG_AudioPushFn)(uint8_t * src, int frames);
|
|
|
|
struct LG_AudioDevOps
|
|
{
|
|
/* internal name of the audio for debugging */
|
|
const char * name;
|
|
|
|
/* called very early to allow for option registration, optional */
|
|
void (*earlyInit)(void);
|
|
|
|
/* called to initialize the audio backend */
|
|
bool (*init)(void);
|
|
|
|
/* final free */
|
|
void (*free)(void);
|
|
|
|
struct
|
|
{
|
|
/* setup the stream for playback but don't start it yet
|
|
* Note: the pull function returns f32 samples
|
|
*/
|
|
void (*setup)(int channels, int sampleRate, int requestedPeriodFrames,
|
|
int * maxPeriodFrames, int * startFrames, LG_AudioPullFn pullFn);
|
|
|
|
/* called when there is data available to start playback */
|
|
void (*start)(void);
|
|
|
|
/* called when SPICE reports the audio stream has stopped */
|
|
void (*stop)(void);
|
|
|
|
/* [optional] called to set the volume of the channels */
|
|
void (*volume)(int channels, const uint16_t volume[]);
|
|
|
|
/* [optional] called to set muting of the output */
|
|
void (*mute)(bool mute);
|
|
|
|
/* return the current total playback latency in microseconds */
|
|
uint64_t (*latency)(void);
|
|
}
|
|
playback;
|
|
|
|
struct
|
|
{
|
|
/* start the record stream
|
|
* Note: currently SPICE only supports S16 samples so always assume so
|
|
*/
|
|
void (*start)(int channels, int sampleRate, LG_AudioPushFn pushFn);
|
|
|
|
/* called when SPICE reports the audio stream has stopped */
|
|
void (*stop)(void);
|
|
|
|
/* [optional] called to set the volume of the channels */
|
|
void (*volume)(int channels, const uint16_t volume[]);
|
|
|
|
/* [optional] called to set muting of the input */
|
|
void (*mute)(bool mute);
|
|
}
|
|
record;
|
|
};
|
|
|
|
#endif
|