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authorGuenter Bartsch <guenter@users.sourceforge.net>2001-07-10 21:50:31 +0000
committerGuenter Bartsch <guenter@users.sourceforge.net>2001-07-10 21:50:31 +0000
commitd8b2a2e6ab69169bab5ca40b69bfa5dac893bd0e (patch)
tree6d2879e005ef8db84801c81e52450ee8736c6454 /src/libac3/rematrix.c
parent4cc9fd313df701f722a81ad4bb551155415ce5cc (diff)
downloadxine-lib-d8b2a2e6ab69169bab5ca40b69bfa5dac893bd0e.tar.gz
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latest libac3 from walken
CVS patchset: 265 CVS date: 2001/07/10 21:50:31
Diffstat (limited to 'src/libac3/rematrix.c')
-rw-r--r--src/libac3/rematrix.c81
1 files changed, 0 insertions, 81 deletions
diff --git a/src/libac3/rematrix.c b/src/libac3/rematrix.c
deleted file mode 100644
index 7098f0526..000000000
--- a/src/libac3/rematrix.c
+++ /dev/null
@@ -1,81 +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 <stdlib.h>
-#include <stdio.h>
-#include "ac3.h"
-#include "ac3_internal.h"
-
-
-#include "decode.h"
-#include "rematrix.h"
-
-struct rematrix_band_s
-{
- uint32_t start;
- uint32_t end;
-};
-
-struct rematrix_band_s rematrix_band[] = { {13,24}, {25,36}, {37 ,60}, {61,252}};
-
-static inline uint32_t min(uint32_t a,uint32_t b);
-
-static inline uint32_t
-min(uint32_t a,uint32_t b)
-{
- return (a < b ? a : b);
-}
-
-/* This routine simply does stereo rematixing 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;
- uint32_t i,j;
- float left,right;
-
- 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++) {
- left = samples[0][j] + samples[1][j];
- right = samples[0][j] - samples[1][j];
- samples[0][j] = left;
- samples[1][j] = right;
- }
- }
-}