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author | Guenter Bartsch <guenter@users.sourceforge.net> | 2001-07-10 21:50:31 +0000 |
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committer | Guenter Bartsch <guenter@users.sourceforge.net> | 2001-07-10 21:50:31 +0000 |
commit | d8b2a2e6ab69169bab5ca40b69bfa5dac893bd0e (patch) | |
tree | 6d2879e005ef8db84801c81e52450ee8736c6454 /src/libac3/dither.h | |
parent | 4cc9fd313df701f722a81ad4bb551155415ce5cc (diff) | |
download | xine-lib-d8b2a2e6ab69169bab5ca40b69bfa5dac893bd0e.tar.gz xine-lib-d8b2a2e6ab69169bab5ca40b69bfa5dac893bd0e.tar.bz2 |
latest libac3 from walken
CVS patchset: 265
CVS date: 2001/07/10 21:50:31
Diffstat (limited to 'src/libac3/dither.h')
-rw-r--r-- | src/libac3/dither.h | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/src/libac3/dither.h b/src/libac3/dither.h deleted file mode 100644 index 1a605ee14..000000000 --- a/src/libac3/dither.h +++ /dev/null @@ -1,37 +0,0 @@ -/* - * dither.h - * - * Copyright (C) Aaron Holtzman - May 1999 - * - * This file is part of ac3dec, a free Dolby AC-3 stream decoder. - * - * ac3dec 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, or (at your option) - * any later version. - * - * ac3dec 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 GNU Make; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - - -extern uint16_t lfsr_state; -extern const uint16_t dither_lut[256]; - -static inline uint16_t dither_gen(void) -{ - int16_t state; - - state = dither_lut[lfsr_state >> 8] ^ (lfsr_state << 8); - - lfsr_state = (uint16_t) state; - - return ((state * (int32_t) (0.707106 * 256.0))>>8); -} |