libao2/audio_out.h

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