core/storage_formats.h

   1 #ifndef CORE_STORAGE_FORMATS_H
   2 #define CORE_STORAGE_FORMATS_H
   3
   4 using uint = unsigned int;
   5
   6 /* Storable formats */
   7 enum FmtType : unsigned char {
   8     FmtUByte,
   9     FmtShort,
  10     FmtInt,
  11     FmtFloat,
  12     FmtDouble,
  13     FmtMulaw,
  14     FmtAlaw,
  15     FmtIMA4,
  16     FmtMSADPCM,
  17 };
  18 enum FmtChannels : unsigned char {
  19     FmtMono,
  20     FmtStereo,
  21     FmtRear,
  22     FmtQuad,
  23     FmtX51, /* (WFX order) */
  24     FmtX61, /* (WFX order) */
  25     FmtX71, /* (WFX order) */
  26     FmtBFormat2D,
  27     FmtBFormat3D,
  28     FmtUHJ2, /* 2-channel UHJ, aka "BHJ", stereo-compatible */
  29     FmtUHJ3, /* 3-channel UHJ, aka "THJ" */
  30     FmtUHJ4, /* 4-channel UHJ, aka "PHJ" */
  31     FmtSuperStereo, /* Stereo processed with Super Stereo. */
  32     FmtMonoDup, /* Mono duplicated for left/right separation */
  33 };
  34
  35 enum class AmbiLayout : unsigned char {
  36     FuMa,
  37     ACN,
  38 };
  39 enum class AmbiScaling : unsigned char {
  40     FuMa,
  41     SN3D,
  42     N3D,
  43     UHJ,
  44 };
  45
  46 const char *NameFromFormat(FmtType type) noexcept;
  47 const char *NameFromFormat(FmtChannels channels) noexcept;
  48
  49 uint BytesFromFmt(FmtType type) noexcept;
  50 uint ChannelsFromFmt(FmtChannels chans, uint ambiorder) noexcept;
  51 inline uint FrameSizeFromFmt(FmtChannels chans, FmtType type, uint ambiorder) noexcept
  52 { return ChannelsFromFmt(chans, ambiorder) * BytesFromFmt(type); }
  53
  54 #endif /* CORE_STORAGE_FORMATS_H */