mirror of
https://github.com/mpv-player/mpv
synced 2025-03-19 18:05:21 +00:00
c8b3088c18
Move the buffer storing audio data ready to be fed to the audio output driver from the audio decoder object to the AO object. This will help encoding code deal with end of input, and may also be useful to improve other general gapless audio behavior (as AOs which do not accept chunks smaller than a certain size may keep them in the buffer while the decoder changes). Less data may be dropped now when changing audio filters or switching timeline parts.
132 lines
3.8 KiB
C
132 lines
3.8 KiB
C
/*
|
|
* This file is part of MPlayer.
|
|
*
|
|
* MPlayer 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.
|
|
*
|
|
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#ifndef MPLAYER_AUDIO_OUT_H
|
|
#define MPLAYER_AUDIO_OUT_H
|
|
|
|
#include <stdbool.h>
|
|
|
|
#include "bstr.h"
|
|
|
|
typedef struct ao_info {
|
|
/* driver name ("Matrox Millennium G200/G400" */
|
|
const char *name;
|
|
/* short name (for config strings) ("mga") */
|
|
const char *short_name;
|
|
/* author ("Aaron Holtzman <aholtzma@ess.engr.uvic.ca>") */
|
|
const char *author;
|
|
/* any additional comments */
|
|
const char *comment;
|
|
} ao_info_t;
|
|
|
|
/* interface towards mplayer and */
|
|
typedef struct ao_old_functions {
|
|
int (*control)(int cmd, void *arg);
|
|
int (*init)(int rate, int channels, int format, int flags);
|
|
void (*uninit)(int immed);
|
|
void (*reset)(void);
|
|
int (*get_space)(void);
|
|
int (*play)(void *data, int len, int flags);
|
|
float (*get_delay)(void);
|
|
void (*pause)(void);
|
|
void (*resume)(void);
|
|
} ao_functions_t;
|
|
|
|
struct ao;
|
|
|
|
struct ao_driver {
|
|
bool is_new;
|
|
const struct ao_info *info;
|
|
const struct ao_old_functions *old_functions;
|
|
int (*control)(struct ao *ao, int cmd, void *arg);
|
|
int (*init)(struct ao *ao, char *params);
|
|
void (*uninit)(struct ao *ao, bool cut_audio);
|
|
void (*reset)(struct ao*ao);
|
|
int (*get_space)(struct ao *ao);
|
|
int (*play)(struct ao *ao, void *data, int len, int flags);
|
|
float (*get_delay)(struct ao *ao);
|
|
void (*pause)(struct ao *ao);
|
|
void (*resume)(struct ao *ao);
|
|
};
|
|
|
|
/* global data used by mplayer and plugins */
|
|
struct ao {
|
|
int samplerate;
|
|
int channels;
|
|
int format;
|
|
int bps;
|
|
int outburst;
|
|
int buffersize;
|
|
int pts;
|
|
struct bstr buffer;
|
|
int buffer_playable_size;
|
|
bool initialized;
|
|
bool untimed;
|
|
const struct ao_driver *driver;
|
|
void *priv;
|
|
};
|
|
|
|
extern char *ao_subdevice;
|
|
|
|
void list_audio_out(void);
|
|
|
|
#define CONTROL_OK 1
|
|
#define CONTROL_TRUE 1
|
|
#define CONTROL_FALSE 0
|
|
#define CONTROL_UNKNOWN -1
|
|
#define CONTROL_ERROR -2
|
|
#define CONTROL_NA -3
|
|
|
|
#define AOCONTROL_SET_DEVICE 1
|
|
#define AOCONTROL_GET_DEVICE 2
|
|
#define AOCONTROL_QUERY_FORMAT 3 /* test for availabilty of a format */
|
|
#define AOCONTROL_GET_VOLUME 4
|
|
#define AOCONTROL_SET_VOLUME 5
|
|
#define AOCONTROL_SET_PLUGIN_DRIVER 6
|
|
#define AOCONTROL_SET_PLUGIN_LIST 7
|
|
|
|
#define AOPLAY_FINAL_CHUNK 1
|
|
|
|
typedef struct ao_control_vol {
|
|
float left;
|
|
float right;
|
|
} ao_control_vol_t;
|
|
|
|
struct ao *ao_create(void);
|
|
void ao_init(struct ao *ao, char **ao_list);
|
|
void ao_uninit(struct ao *ao, bool cut_audio);
|
|
int ao_play(struct ao *ao, void *data, int len, int flags);
|
|
int ao_control(struct ao *ao, int cmd, void *arg);
|
|
double ao_get_delay(struct ao *ao);
|
|
int ao_get_space(struct ao *ao);
|
|
void ao_reset(struct ao *ao);
|
|
void ao_pause(struct ao *ao);
|
|
void ao_resume(struct ao *ao);
|
|
|
|
int old_ao_control(struct ao *ao, int cmd, void *arg);
|
|
int old_ao_init(struct ao *ao, char *params);
|
|
void old_ao_uninit(struct ao *ao, bool cut_audio);
|
|
void old_ao_reset(struct ao*ao);
|
|
int old_ao_get_space(struct ao *ao);
|
|
int old_ao_play(struct ao *ao, void *data, int len, int flags);
|
|
float old_ao_get_delay(struct ao *ao);
|
|
void old_ao_pause(struct ao *ao);
|
|
void old_ao_resume(struct ao *ao);
|
|
|
|
#endif /* MPLAYER_AUDIO_OUT_H */
|