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47 lines
1.4 KiB
47 lines
1.4 KiB
/* |
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* The simplest AC-3 encoder |
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* Copyright (c) 2000 Fabrice Bellard |
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* Copyright (c) 2006-2010 Justin Ruggles <justin.ruggles@gmail.com> |
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* Copyright (c) 2006-2010 Prakash Punnoor <prakash@punnoor.de> |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/** |
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* @file |
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* floating-point AC-3 encoder header. |
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*/ |
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#ifndef AVCODEC_AC3ENC_FLOAT_H |
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#define AVCODEC_AC3ENC_FLOAT_H |
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#include "fft.h" |
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typedef float SampleType; |
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typedef float CoefType; |
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typedef float CoefSumType; |
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#define MAC_COEF(d,a,b) ((d)+=(a)*(b)) |
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typedef struct AC3MDCTContext { |
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const float *window; ///< MDCT window function |
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FFTContext fft; ///< FFT context for MDCT calculation |
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} AC3MDCTContext; |
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#endif /* AVCODEC_AC3ENC_FLOAT_H */
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