chromium/third_party/ffmpeg/libavcodec/mpegaudio_tablegen.h

/*
 * Header file for hardcoded mpegaudiodec tables
 *
 * Copyright (c) 2009 Reimar Döffinger <[email protected]>
 *
 * 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_MPEGAUDIO_TABLEGEN_H
#define AVCODEC_MPEGAUDIO_TABLEGEN_H

#include <stdint.h>
#include <math.h>
#include "libavutil/attributes.h"

#if CONFIG_HARDCODED_TABLES
#define mpegaudio_tableinit …
#include "libavcodec/mpegaudio_tables.h"
#else
#if defined(BUILD_TABLES) || !USE_FLOATS
#define FIXED_TABLE
static uint32_t exp_table_fixed[512];
static uint32_t expval_table_fixed[512][16];
#endif

#if defined(BUILD_TABLES) || USE_FLOATS
#define FLOAT_TABLE
static float exp_table_float[512];
static float expval_table_float[512][16];
#endif

#define IMDCT_SCALAR …

static av_cold void mpegaudio_tableinit(void)
{ … }
#undef FLOAT_TABLE
#undef FIXED_TABLE
#endif /* CONFIG_HARDCODED_TABLES */

#endif /* AVCODEC_MPEGAUDIO_TABLEGEN_H */