libao2/audio_out.h

   1
   2 #ifndef __AUDIO_OUT_H
   3 #define __AUDIO_OUT_H
   4
   5 typedef struct ao_info_s
   6 {
   7         /* driver name ("Matrox Millennium G200/G400" */
   8         const char *name;
   9         /* short name (for config strings) ("mga") */
  10         const char *short_name;
  11         /* author ("Aaron Holtzman <aholtzma@ess.engr.uvic.ca>") */
  12         const char *author;
  13         /* any additional comments */
  14         const char *comment;
  15 } ao_info_t;
  16
  17 /* interface towards mplayer and */
  18 typedef struct ao_functions_s
  19 {
  20         ao_info_t *info;
  21         int (*control)(int cmd,void *arg);
  22         int (*init)(int rate,int channels,int format,int flags);
  23         void (*uninit)(int immed);
  24         void (*reset)(void);
  25         int (*get_space)(void);
  26         int (*play)(void* data,int len,int flags);
  27         float (*get_delay)(void);
  28         void (*pause)(void);
  29         void (*resume)(void);
  30 } ao_functions_t;
  31
  32 /* global data used by mplayer and plugins */
  33 typedef struct ao_data_s
  34 {
  35   int samplerate;
  36   int channels;
  37   int format;
  38   int bps;
  39   int outburst;
  40   int buffersize;
  41   int pts;
  42 } ao_data_t;
  43
  44 extern char *ao_subdevice;
  45 extern ao_data_t ao_data;
  46
  47 void list_audio_out(void);
  48 ao_functions_t* init_best_audio_out(char** ao_list,int use_plugin,int rate,int channels,int format,int flags);
  49
  50 // NULL terminated array of all drivers
  51 extern ao_functions_t* audio_out_drivers[];
  52
  53 #define CONTROL_OK 1
  54 #define CONTROL_TRUE 1
  55 #define CONTROL_FALSE 0
  56 #define CONTROL_UNKNOWN -1
  57 #define CONTROL_ERROR -2
  58 #define CONTROL_NA -3
  59
  60 #define AOCONTROL_SET_DEVICE 1
  61 #define AOCONTROL_GET_DEVICE 2
  62 #define AOCONTROL_QUERY_FORMAT 3 /* test for availabilty of a format */
  63 #define AOCONTROL_GET_VOLUME 4
  64 #define AOCONTROL_SET_VOLUME 5
  65 #define AOCONTROL_SET_PLUGIN_DRIVER 6
  66 #define AOCONTROL_SET_PLUGIN_LIST 7
  67
  68 #define AOPLAY_FINAL_CHUNK 1
  69
  70 typedef struct ao_control_vol_s {
  71         float left;
  72         float right;
  73 } ao_control_vol_t;
  74
  75 #endif