libaf/af_format.h

   1 /* The sample format system used lin libaf is based on bitmasks. The
   2    format definition only refers to the storage format not the
   3    resolution. */
   4 #ifndef __af_format_h__
   5 #define __af_format_h__
   6
   7 #ifndef MPLAYER_CONFIG_H
   8 #error af_format.h needs config.h
   9 #endif
  10
  11 // Endianness
  12 #define AF_FORMAT_BE            (0<<0) // Big Endian
  13 #define AF_FORMAT_LE            (1<<0) // Little Endian
  14 #define AF_FORMAT_END_MASK      (1<<0)
  15
  16 #if WORDS_BIGENDIAN             // Native endian of cpu
  17 #define AF_FORMAT_NE            AF_FORMAT_BE
  18 #else
  19 #define AF_FORMAT_NE            AF_FORMAT_LE
  20 #endif
  21
  22 // Signed/unsigned
  23 #define AF_FORMAT_SI            (0<<1) // Signed
  24 #define AF_FORMAT_US            (1<<1) // Unsigned
  25 #define AF_FORMAT_SIGN_MASK     (1<<1)
  26
  27 // Fixed or floating point
  28 #define AF_FORMAT_I             (0<<2) // Int
  29 #define AF_FORMAT_F             (1<<2) // Foating point
  30 #define AF_FORMAT_POINT_MASK    (1<<2)
  31
  32 // Bits used
  33 #define AF_FORMAT_8BIT          (0<<3)
  34 #define AF_FORMAT_16BIT         (1<<3)
  35 #define AF_FORMAT_24BIT         (2<<3)
  36 #define AF_FORMAT_32BIT         (3<<3)
  37 #define AF_FORMAT_40BIT         (4<<3)
  38 #define AF_FORMAT_48BIT         (5<<3)
  39 #define AF_FORMAT_BITS_MASK     (7<<3)
  40
  41 // Special flags refering to non pcm data
  42 #define AF_FORMAT_MU_LAW        (1<<6)
  43 #define AF_FORMAT_A_LAW         (2<<6)
  44 #define AF_FORMAT_MPEG2         (3<<6) // MPEG(2) audio
  45 #define AF_FORMAT_AC3           (4<<6) // Dolby Digital AC3
  46 #define AF_FORMAT_IMA_ADPCM     (5<<6)
  47 #define AF_FORMAT_SPECIAL_MASK  (7<<6)
  48
  49 // PREDEFINED formats
  50
  51 #define AF_FORMAT_U8            (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_8BIT|AF_FORMAT_NE)
  52 #define AF_FORMAT_S8            (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_8BIT|AF_FORMAT_NE)
  53 #define AF_FORMAT_U16_LE        (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_16BIT|AF_FORMAT_LE)
  54 #define AF_FORMAT_U16_BE        (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_16BIT|AF_FORMAT_BE)
  55 #define AF_FORMAT_S16_LE        (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_16BIT|AF_FORMAT_LE)
  56 #define AF_FORMAT_S16_BE        (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_16BIT|AF_FORMAT_BE)
  57 #define AF_FORMAT_U24_LE        (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_24BIT|AF_FORMAT_LE)
  58 #define AF_FORMAT_U24_BE        (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_24BIT|AF_FORMAT_BE)
  59 #define AF_FORMAT_S24_LE        (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_24BIT|AF_FORMAT_LE)
  60 #define AF_FORMAT_S24_BE        (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_24BIT|AF_FORMAT_BE)
  61 #define AF_FORMAT_U32_LE        (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_32BIT|AF_FORMAT_LE)
  62 #define AF_FORMAT_U32_BE        (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_32BIT|AF_FORMAT_BE)
  63 #define AF_FORMAT_S32_LE        (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_32BIT|AF_FORMAT_LE)
  64 #define AF_FORMAT_S32_BE        (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_32BIT|AF_FORMAT_BE)
  65
  66 #define AF_FORMAT_FLOAT_LE      (AF_FORMAT_F|AF_FORMAT_32BIT|AF_FORMAT_LE)
  67 #define AF_FORMAT_FLOAT_BE      (AF_FORMAT_F|AF_FORMAT_32BIT|AF_FORMAT_BE)
  68
  69 #ifdef WORDS_BIGENDIAN
  70 #define AF_FORMAT_U16_NE AF_FORMAT_U16_BE
  71 #define AF_FORMAT_S16_NE AF_FORMAT_S16_BE
  72 #define AF_FORMAT_U24_NE AF_FORMAT_U24_BE
  73 #define AF_FORMAT_S24_NE AF_FORMAT_S24_BE
  74 #define AF_FORMAT_U32_NE AF_FORMAT_U32_BE
  75 #define AF_FORMAT_S32_NE AF_FORMAT_S32_BE
  76 #define AF_FORMAT_FLOAT_NE AF_FORMAT_FLOAT_BE
  77 #else
  78 #define AF_FORMAT_U16_NE AF_FORMAT_U16_LE
  79 #define AF_FORMAT_S16_NE AF_FORMAT_S16_LE
  80 #define AF_FORMAT_U24_NE AF_FORMAT_U24_LE
  81 #define AF_FORMAT_S24_NE AF_FORMAT_S24_LE
  82 #define AF_FORMAT_U32_NE AF_FORMAT_U32_LE
  83 #define AF_FORMAT_S32_NE AF_FORMAT_S32_LE
  84 #define AF_FORMAT_FLOAT_NE AF_FORMAT_FLOAT_LE
  85 #endif
  86
  87 #define AF_FORMAT_UNKNOWN (-1)
  88
  89 extern int af_str2fmt(const char *str);
  90 extern int af_str2fmt_short(const char *str);
  91 extern int af_fmt2bits(int format);
  92 extern int af_bits2fmt(int bits);
  93 extern char* af_fmt2str(int format, char* str, int size);
  94 extern const char* af_fmt2str_short(int format);
  95
  96 #endif /* __af_format_h__ */