libaf/af_format.h

   1 /*
   2  * The sample format system used lin libaf is based on bitmasks.
   3  * The format definition only refers to the storage format,
   4  * not the resolution.
   5  *
   6  * This file is part of MPlayer.
   7  *
   8  * MPlayer is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * MPlayer is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22
  23 #ifndef MPLAYER_AF_FORMAT_H
  24 #define MPLAYER_AF_FORMAT_H
  25
  26 #include "config.h"
  27
  28 // Endianness
  29 #define AF_FORMAT_BE            (0<<0) // Big Endian
  30 #define AF_FORMAT_LE            (1<<0) // Little Endian
  31 #define AF_FORMAT_END_MASK      (1<<0)
  32
  33 #if HAVE_BIGENDIAN              // Native endian of cpu
  34 #define AF_FORMAT_NE            AF_FORMAT_BE
  35 #else
  36 #define AF_FORMAT_NE            AF_FORMAT_LE
  37 #endif
  38
  39 // Signed/unsigned
  40 #define AF_FORMAT_SI            (0<<1) // Signed
  41 #define AF_FORMAT_US            (1<<1) // Unsigned
  42 #define AF_FORMAT_SIGN_MASK     (1<<1)
  43
  44 // Fixed or floating point
  45 #define AF_FORMAT_I             (0<<2) // Int
  46 #define AF_FORMAT_F             (1<<2) // Foating point
  47 #define AF_FORMAT_POINT_MASK    (1<<2)
  48
  49 // Bits used
  50 #define AF_FORMAT_8BIT          (0<<3)
  51 #define AF_FORMAT_16BIT         (1<<3)
  52 #define AF_FORMAT_24BIT         (2<<3)
  53 #define AF_FORMAT_32BIT         (3<<3)
  54 #define AF_FORMAT_40BIT         (4<<3)
  55 #define AF_FORMAT_48BIT         (5<<3)
  56 #define AF_FORMAT_BITS_MASK     (7<<3)
  57
  58 // Special flags refering to non pcm data
  59 #define AF_FORMAT_MU_LAW        (1<<6)
  60 #define AF_FORMAT_A_LAW         (2<<6)
  61 #define AF_FORMAT_MPEG2         (3<<6) // MPEG(2) audio
  62 #define AF_FORMAT_AC3           (4<<6) // Dolby Digital AC3
  63 #define AF_FORMAT_IMA_ADPCM     (5<<6)
  64 #define AF_FORMAT_SPECIAL_MASK  (7<<6)
  65
  66 // PREDEFINED formats
  67
  68 #define AF_FORMAT_U8            (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_8BIT|AF_FORMAT_NE)
  69 #define AF_FORMAT_S8            (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_8BIT|AF_FORMAT_NE)
  70 #define AF_FORMAT_U16_LE        (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_16BIT|AF_FORMAT_LE)
  71 #define AF_FORMAT_U16_BE        (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_16BIT|AF_FORMAT_BE)
  72 #define AF_FORMAT_S16_LE        (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_16BIT|AF_FORMAT_LE)
  73 #define AF_FORMAT_S16_BE        (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_16BIT|AF_FORMAT_BE)
  74 #define AF_FORMAT_U24_LE        (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_24BIT|AF_FORMAT_LE)
  75 #define AF_FORMAT_U24_BE        (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_24BIT|AF_FORMAT_BE)
  76 #define AF_FORMAT_S24_LE        (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_24BIT|AF_FORMAT_LE)
  77 #define AF_FORMAT_S24_BE        (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_24BIT|AF_FORMAT_BE)
  78 #define AF_FORMAT_U32_LE        (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_32BIT|AF_FORMAT_LE)
  79 #define AF_FORMAT_U32_BE        (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_32BIT|AF_FORMAT_BE)
  80 #define AF_FORMAT_S32_LE        (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_32BIT|AF_FORMAT_LE)
  81 #define AF_FORMAT_S32_BE        (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_32BIT|AF_FORMAT_BE)
  82
  83 #define AF_FORMAT_FLOAT_LE      (AF_FORMAT_F|AF_FORMAT_32BIT|AF_FORMAT_LE)
  84 #define AF_FORMAT_FLOAT_BE      (AF_FORMAT_F|AF_FORMAT_32BIT|AF_FORMAT_BE)
  85
  86 #define AF_FORMAT_AC3_LE        (AF_FORMAT_AC3|AF_FORMAT_16BIT|AF_FORMAT_LE)
  87 #define AF_FORMAT_AC3_BE        (AF_FORMAT_AC3|AF_FORMAT_16BIT|AF_FORMAT_BE)
  88
  89 #if HAVE_BIGENDIAN
  90 #define AF_FORMAT_U16_NE AF_FORMAT_U16_BE
  91 #define AF_FORMAT_S16_NE AF_FORMAT_S16_BE
  92 #define AF_FORMAT_U24_NE AF_FORMAT_U24_BE
  93 #define AF_FORMAT_S24_NE AF_FORMAT_S24_BE
  94 #define AF_FORMAT_U32_NE AF_FORMAT_U32_BE
  95 #define AF_FORMAT_S32_NE AF_FORMAT_S32_BE
  96 #define AF_FORMAT_FLOAT_NE AF_FORMAT_FLOAT_BE
  97 #define AF_FORMAT_AC3_NE AF_FORMAT_AC3_BE
  98 #else
  99 #define AF_FORMAT_U16_NE AF_FORMAT_U16_LE
 100 #define AF_FORMAT_S16_NE AF_FORMAT_S16_LE
 101 #define AF_FORMAT_U24_NE AF_FORMAT_U24_LE
 102 #define AF_FORMAT_S24_NE AF_FORMAT_S24_LE
 103 #define AF_FORMAT_U32_NE AF_FORMAT_U32_LE
 104 #define AF_FORMAT_S32_NE AF_FORMAT_S32_LE
 105 #define AF_FORMAT_FLOAT_NE AF_FORMAT_FLOAT_LE
 106 #define AF_FORMAT_AC3_NE AF_FORMAT_AC3_LE
 107 #endif
 108
 109 #define AF_FORMAT_UNKNOWN (-1)
 110
 111 #define AF_FORMAT_IS_AC3(fmt) (((fmt) & AF_FORMAT_SPECIAL_MASK) == AF_FORMAT_AC3)
 112
 113 int af_str2fmt(const char *str);
 114 int af_str2fmt_short(const char *str);
 115 int af_fmt2bits(int format);
 116 int af_bits2fmt(int bits);
 117 char* af_fmt2str(int format, char* str, int size);
 118 const char* af_fmt2str_short(int format);
 119
 120 #endif /* MPLAYER_AF_FORMAT_H */