apps/codecs/libasf/asf.h

   1 #ifndef _ASF_H
   2 #define _ASF_H
   3
   4 #include <inttypes.h>
   5
   6 /* ASF codec IDs */
   7 #define ASF_CODEC_ID_WMAV1      0x160
   8 #define ASF_CODEC_ID_WMAV2      0x161
   9 #define ASF_CODEC_ID_WMAPRO     0x162
  10 #define ASF_CODEC_ID_WMAVOICE   0x00A
  11
  12 enum asf_error_e {
  13     ASF_ERROR_INTERNAL       = -1,  /* incorrect input to API calls */
  14     ASF_ERROR_OUTOFMEM       = -2,  /* some malloc inside program failed */
  15     ASF_ERROR_EOF            = -3,  /* unexpected end of file */
  16     ASF_ERROR_IO             = -4,  /* error reading or writing to file */
  17     ASF_ERROR_INVALID_LENGTH = -5,  /* length value conflict in input data */
  18     ASF_ERROR_INVALID_VALUE  = -6,  /* other value conflict in input data */
  19     ASF_ERROR_INVALID_OBJECT = -7,  /* ASF object missing or in wrong place */
  20     ASF_ERROR_OBJECT_SIZE    = -8,  /* invalid ASF object size (too small) */
  21     ASF_ERROR_SEEKABLE       = -9,  /* file not seekable */
  22     ASF_ERROR_SEEK           = -10,  /* file is seekable but seeking failed */
  23     ASF_ERROR_ENCRYPTED      = -11  /* file is encrypted */
  24 };
  25
  26 struct asf_waveformatex_s {
  27     uint32_t packet_size;
  28     int audiostream;
  29     uint16_t codec_id;
  30     uint16_t channels;
  31     uint32_t rate;
  32     uint32_t bitrate;
  33     uint16_t blockalign;
  34     uint16_t bitspersample;
  35     uint16_t datalen;
  36     uint16_t numpackets;
  37     uint8_t data[46];
  38 };
  39 typedef struct asf_waveformatex_s asf_waveformatex_t;
  40
  41 int asf_read_packet(uint8_t** audiobuf, int* audiobufsize, int* packetlength,
  42                     asf_waveformatex_t* wfx);
  43
  44 int asf_get_timestamp(int *duration);
  45
  46 int asf_seek(int ms, asf_waveformatex_t* wfx);
  47
  48
  49 #endif /* _ASF_H */