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FFmpeg/libavcodec/dcaenc.h
2012-05-18 23:34:11 +02:00

547 lines
7.7 KiB
C

/*
* DCA encoder tables
* Copyright (C) 2008 Alexander E. Patrakov
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_DCAENC_H
#define AVCODEC_DCAENC_H
#include <stdint.h>
/* This is a scaled version of the response of the reference decoder to
this vector of subband samples: ( 1.0 0.0 0.0 ... 0.0 )
*/
static const int32_t UnQMF[512] = {
7,
4,
-961,
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-8024,
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42,
108,
188,
250,
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35762,
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137808404,
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120243281,
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12261189,
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9418799,
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7780776,
7303680,
6353499,
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4457895,
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15172,
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65624,
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71075,
55128,
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6921,
1449,
420,
785,
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110272,
103914,
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81606,
68041,
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-42988,
-35272,
-63735,
-33501,
-12671,
-4038,
-1232,
5,
7
};
#endif /* AVCODEC_DCAENC_H */