src/pcm_reader.h

   1 #ifndef PCM_READER_H
   2 #define PCM_READER_H
   3
   4 #include "lpcm.h"
   5
   6 typedef struct pcm_reader_t pcm_reader_t;
   7
   8 typedef struct pcm_reader_vtbl_t {
   9     const pcm_sample_description_t *(*get_format)(pcm_reader_t *);
  10     int64_t (*get_length)(pcm_reader_t *);
  11     int64_t (*get_position)(pcm_reader_t *);
  12     int (*read_frames)(pcm_reader_t *, void *, unsigned);
  13     void (*teardown)(pcm_reader_t **);
  14 } pcm_reader_vtbl_t;
  15
  16 struct pcm_reader_t {
  17     pcm_reader_vtbl_t *vtbl;
  18 };
  19
  20 static inline
  21 const pcm_sample_description_t *pcm_get_format(pcm_reader_t *r)
  22 {
  23     return r->vtbl->get_format(r);
  24 }
  25
  26 static inline
  27 int64_t pcm_get_length(pcm_reader_t *r)
  28 {
  29     return r->vtbl->get_length(r);
  30 }
  31
  32 static inline
  33 int64_t pcm_get_position(pcm_reader_t *r)
  34 {
  35     return r->vtbl->get_position(r);
  36 }
  37
  38 static inline
  39 int64_t pcm_read_frames(pcm_reader_t *r, void *data, unsigned nframes)
  40 {
  41     return r->vtbl->read_frames(r, data, nframes);
  42 }
  43
  44 static inline
  45 void pcm_teardown(pcm_reader_t **r)
  46 {
  47     (*r)->vtbl->teardown(r);
  48 }
  49
  50 pcm_reader_t *pcm_open_sint16_converter(pcm_reader_t *reader);
  51
  52 #endif