diff options
Diffstat (limited to 'libaf/af_format.h')
| -rw-r--r-- | libaf/af_format.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/libaf/af_format.h b/libaf/af_format.h new file mode 100644 index 0000000000..77ad43f676 --- /dev/null +++ b/libaf/af_format.h @@ -0,0 +1,32 @@ +/* The sample format system used lin libaf is based on bitmasks. The + format definition only refers to the storage format not the + resolution. */ + +// Endianess +#define AF_FORMAT_BE (0<<0) // Big Endian +#define AF_FORMAT_LE (1<<0) // Little Endian +#define AF_FORMAT_END_MASK (1<<0) + +#if WORDS_BIGENDIAN // Native endian of cpu +#define AF_FORMAT_NE AF_FORMAT_BE +#else +#define AF_FORMAT_NE AF_FORMAT_LE +#endif + +// Signed/unsigned +#define AF_FORMAT_SI (0<<1) // SIgned +#define AF_FORMAT_US (1<<1) // Un Signed +#define AF_FORMAT_SIGN_MASK (1<<1) + +// Fixed of floating point +#define AF_FORMAT_I (0<<2) // Int +#define AF_FORMAT_F (1<<2) // Foating point +#define AF_FORMAT_POINT_MASK (1<<2) + +// Special flags refering to non pcm data +#define AF_FORMAT_MU_LAW (1<<3) // +#define AF_FORMAT_A_LAW (2<<3) // +#define AF_FORMAT_MPEG2 (3<<3) // MPEG(2) audio +#define AF_FORMAT_AC3 (4<<3) // Dolby Digital AC3 +#define AF_FORMAT_IMA_ADPCM AF_FORMAT_LE|AF_FORMAT_SI // Same as 16 bit signed int +#define AF_FORMAT_SPECIAL_MASK (7<<3) |