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Diffstat (limited to 'src/libdts/huffman_tables.h')
-rw-r--r-- | src/libdts/huffman_tables.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/libdts/huffman_tables.h b/src/libdts/huffman_tables.h new file mode 100644 index 000000000..044cd8473 --- /dev/null +++ b/src/libdts/huffman_tables.h @@ -0,0 +1,59 @@ +/* + * Copyright (C) 2000-2003 the xine project + * + * This file is part of xine, a unix video player. + * + * xine is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * xine is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * + * $Id: huffman_tables.h,v 1.1 2003/08/05 11:30:56 jcdutton Exp $ + * + * 04-08-2003 DTS software decode (C) James Courtier-Dutton + * + */ + +static int HuffA3[][2] = { + {+2, 0} , + {-2, 2} , + {-1, -3} +}; + +static int32_t HuffA4[][2] = { + {+4, 0}, /* Add +4 to all neg values below to get result. */ + {-4, 2}, /* 0 -> 0 */ + {-3, 3}, /* 10 -> 1 */ + {-2, -1} /* 110 -> 2, 111 -> 3 */ +}; + +static int32_t HuffB4[][2] = { + {+4, 0}, /* Add +4 to all neg values below to get result. */ + {-1, 2}, /* 0 -> 3 */ + {-4, 3}, /* 10 -> 0 */ + {-3, -2} /* 110 -> 1, 111 -> 2 */ +}; + +static int32_t HuffC4[][2] = { + {+4, 0}, /* Add +4 to all neg values below to get result. */ + {-2, 2}, /* 0 -> 2 */ + {-1, 3}, /* 10 -> 3 */ + {-4, -3} /* 110 -> 0, 111 -> 1 */ +}; + +static int32_t HuffD4[][2] = { + {+4, 0}, /* Add +4 to all neg values below to get result. */ + {2, 3}, + {-4, -3}, /* 00 -> 0 , 01 -> 1 */ + {-2, -1} /* 10 -> 2, 11 -> 3 */ +}; + |