mirror of https://github.com/FFmpeg/FFmpeg.git
These windows do not really belong in fft/mdct files and were easily confused with the similarly named tables used by rdft. Signed-off-by: Mans Rullgard <mans@mansr.com>oldabi
Mans Rullgard
14 years ago
parent
a45fbda994
commit
4538729afe
19 changed files with 112 additions and 46 deletions
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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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#include "sinewin.h" |
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#include "sinewin_tablegen.h" |
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/*
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* Copyright (c) 2008 Robert Swain |
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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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#ifndef AVCODEC_SINEWIN_H |
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#define AVCODEC_SINEWIN_H |
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#include "config.h" |
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#include "libavutil/mem.h" |
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#if CONFIG_HARDCODED_TABLES |
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# define SINETABLE_CONST const |
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#else |
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# define SINETABLE_CONST |
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#endif |
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#define SINETABLE(size) \ |
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SINETABLE_CONST DECLARE_ALIGNED(16, float, ff_sine_##size)[size] |
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/**
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* Generate a sine window. |
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* @param window pointer to half window |
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* @param n size of half window |
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*/ |
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void ff_sine_window_init(float *window, int n); |
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/**
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* initialize the specified entry of ff_sine_windows |
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*/ |
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void ff_init_ff_sine_windows(int index); |
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extern SINETABLE( 32); |
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extern SINETABLE( 64); |
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extern SINETABLE( 128); |
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extern SINETABLE( 256); |
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extern SINETABLE( 512); |
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extern SINETABLE(1024); |
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extern SINETABLE(2048); |
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extern SINETABLE(4096); |
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extern SINETABLE_CONST float * const ff_sine_windows[13]; |
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#endif |
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