From 715ed57ab1650cac0c6279d9cd60b2c63d32539c Mon Sep 17 00:00:00 2001 From: Klaus Schmidinger Date: Sun, 24 Feb 2002 14:07:21 +0100 Subject: Removed DVD support from the core VDR source --- ac3dec/rematrix.c | 91 ------------------------------------------------------- 1 file changed, 91 deletions(-) delete mode 100644 ac3dec/rematrix.c (limited to 'ac3dec/rematrix.c') diff --git a/ac3dec/rematrix.c b/ac3dec/rematrix.c deleted file mode 100644 index f1df19b1..00000000 --- a/ac3dec/rematrix.c +++ /dev/null @@ -1,91 +0,0 @@ -/* - * rematrix.c - * - * Copyright (C) Aaron Holtzman - July 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. - * - * - */ - -#include -#include -#include "ac3.h" -#include "ac3_internal.h" - - -#include "rematrix.h" - - -struct rematrix_band_s -{ - uint32_t start; - uint32_t end; -} rematrix_band[] = { - {13, 24}, - {25, 36}, - {37, 60}, - {61, 252} -}; - - -/** - * - **/ - -inline uint32_t min (uint32_t a, uint32_t b) -{ - return (a < b) ? a : b; -} - - -/** - * This routine simply does stereo remartixing for the 2 channel - * stereo mode - **/ - -void rematrix (audblk_t *audblk, stream_samples_t samples) -{ - uint32_t num_bands; - uint32_t start; - uint32_t end; - int i,j; - - if (!audblk->cplinu || audblk->cplbegf > 2) - num_bands = 4; - else if (audblk->cplbegf > 0) - num_bands = 3; - else - num_bands = 2; - - for (i=0; i < num_bands; i++) { - if (!audblk->rematflg[i]) - continue; - - start = rematrix_band[i].start; - end = min (rematrix_band[i].end ,12 * audblk->cplbegf + 36); - - for (j=start;j < end; j++) { - float left,right; - - left = samples[0][j] + samples[1][j]; - right = samples[0][j] - samples[1][j]; - samples[0][j] = left; - samples[1][j] = right; - } - } -} -- cgit v1.2.3