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https://git.ffmpeg.org/ffmpeg.git
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Kacper Michajłow
24914d60df
It only wrapped math.h and mathematics.h since the fallbacks went away. Include math.h and mathematics.h directly where needed. internal.h keeps both so that the many translation units relying on them transitively keep building. Signed-off-by: Kacper Michajłow <kasper93@gmail.com>
76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/*
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* Header file for hardcoded sine windows
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*
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* Copyright (c) 2009 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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_FIXED_TABLEGEN_H
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#define AVCODEC_SINEWIN_FIXED_TABLEGEN_H
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#ifdef BUILD_TABLES
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#undef DECLARE_ALIGNED
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#define DECLARE_ALIGNED(align, type, name) type name
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#else
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#include "libavutil/mem_internal.h"
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#endif
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#define SINETABLE(size) \
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static SINETABLE_CONST DECLARE_ALIGNED(32, int, sine_##size##_fixed)[size]
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#if CONFIG_HARDCODED_TABLES
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#define init_sine_windows_fixed()
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#define SINETABLE_CONST const
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#include "libavcodec/sinewin_fixed_tables.h"
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#else
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#include <math.h>
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#include "libavutil/attributes.h"
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#define SINETABLE_CONST
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SINETABLE( 96);
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SINETABLE( 120);
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SINETABLE( 128);
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SINETABLE( 480);
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SINETABLE( 512);
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SINETABLE( 768);
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SINETABLE( 960);
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SINETABLE(1024);
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#define SIN_FIX(a) (int)floor((a) * 0x80000000 + 0.5)
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// Generate a sine window.
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static av_cold void sine_window_init_fixed(int *window, int n)
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{
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for (int i = 0; i < n; i++)
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window[i] = SIN_FIX(sinf((i + 0.5) * (M_PI / (2.0 * n))));
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}
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static av_cold void init_sine_windows_fixed(void)
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{
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sine_window_init_fixed(sine_96_fixed, 96);
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sine_window_init_fixed(sine_120_fixed, 120);
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sine_window_init_fixed(sine_128_fixed, 128);
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sine_window_init_fixed(sine_480_fixed, 480);
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sine_window_init_fixed(sine_512_fixed, 512);
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sine_window_init_fixed(sine_768_fixed, 768);
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sine_window_init_fixed(sine_960_fixed, 960);
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sine_window_init_fixed(sine_1024_fixed, 1024);
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}
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#endif /* CONFIG_HARDCODED_TABLES */
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#endif /* AVCODEC_SINEWIN_FIXED_TABLEGEN_H */
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