libmpcodecs/ad.h

   1
   2 #include "mpc_info.h"
   3 typedef mp_codec_info_t ad_info_t;
   4
   5 /* interface of video decoder drivers */
   6 typedef struct ad_functions_s
   7 {
   8         ad_info_t *info;
   9         int (*preinit)(sh_audio_t *sh);
  10         int (*init)(sh_audio_t *sh);
  11         void (*uninit)(sh_audio_t *sh);
  12         int (*control)(sh_audio_t *sh,int cmd,void* arg, ...);
  13         int (*decode_audio)(sh_audio_t *sh,unsigned char* buffer,int minlen,int maxlen);
  14 } ad_functions_t;
  15
  16 // NULL terminated array of all drivers
  17 extern ad_functions_t* mpcodecs_ad_drivers[];
  18
  19 // fallback if ADCTRL_RESYNC not implemented: sh_audio->a_in_buffer_len=0;
  20 #define ADCTRL_RESYNC_STREAM 1       /* resync, called after seeking! */
  21
  22 // fallback if ADCTRL_SKIP not implemented: ds_fill_buffer(sh_audio->ds);
  23 #define ADCTRL_SKIP_FRAME 2         /* skip block/frame, called while seeking! */
  24
  25 // fallback if ADCTRL_QUERY_FORMAT not implemented: sh_audio->sample_format
  26 #define ADCTRL_QUERY_FORMAT 3 /* test for availabilty of a format */
  27
  28 // fallback: use hw mixer in libao
  29 #define ADCTRL_SET_VOLUME 4 /* set volume (used for mp3lib and liba52) */
  30