vorbis-tools/oggenc/flac.h

   1
   2 #ifndef __FLAC_H
   3 #define __FLAC_H
   4
   5 #include "encode.h"
   6 #include "audio.h"
   7 #include <stdio.h>
   8 #include <FLAC/stream_decoder.h>
   9 #if !defined(FLAC_API_VERSION_CURRENT) || (FLAC_API_VERSION_CURRENT < 8)
  10 #define NEED_EASYFLAC 1
  11 #endif
  12 #if NEED_EASYFLAC
  13 #include <OggFLAC/stream_decoder.h>
  14 #include "easyflac.h"
  15 #endif
  16
  17 typedef struct {
  18 #if NEED_EASYFLAC
  19     EasyFLAC__StreamDecoder *decoder;
  20 #else
  21     FLAC__StreamDecoder *decoder;
  22 #endif
  23     short channels;
  24     int rate;
  25     long totalsamples; /* per channel, of course */
  26
  27     FLAC__StreamMetadata *comments;
  28
  29     FILE *in;  /* Cache the FILE pointer so the FLAC read callback can use it */
  30     int eos;  /* End of stream read */
  31
  32
  33     /* Buffer for decoded audio */
  34     float **buf;  /* channels by buf_len array */
  35     int buf_len;
  36     int buf_start; /* Offset to start of audio data */
  37     int buf_fill; /* Number of bytes of audio data in buffer */
  38
  39     /* Buffer for input data we already read in the id phase */
  40     unsigned char *oldbuf;
  41     int oldbuf_len;
  42     int oldbuf_start;
  43 } flacfile;
  44
  45
  46 int flac_id(unsigned char *buf, int len);
  47 int oggflac_id(unsigned char *buf, int len);
  48 int flac_open(FILE *in, oe_enc_opt *opt, unsigned char *buf, int buflen);
  49 void flac_close(void *);
  50
  51 long flac_read(void *, float **buffer, int samples);
  52
  53 #endif /* __FLAC_H */
  54