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/*
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 * Format Conversion Utils
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 * Copyright (c) 2000, 2001 Fabrice Bellard
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 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
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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_FMTCONVERT_H
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#define AVCODEC_FMTCONVERT_H
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#include "avcodec.h"
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typedef struct FmtConvertContext {
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    /**
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     * Convert an array of int32_t to float and multiply by a float value.
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     * @param dst destination array of float.
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     *            constraints: 16-byte aligned
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     * @param src source array of int32_t.
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     *            constraints: 16-byte aligned
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     * @param len number of elements to convert.
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     *            constraints: multiple of 8
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     */
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    void (*int32_to_float_fmul_scalar)(float *dst, const int *src, float mul, int len);
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    /**
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     * Convert an array of float to an array of int16_t.
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     *
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     * Convert floats from in the range [-32768.0,32767.0] to ints
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     * without rescaling
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     *
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     * @param dst destination array of int16_t.
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     *            constraints: 16-byte aligned
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     * @param src source array of float.
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     *            constraints: 16-byte aligned
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     * @param len number of elements to convert.
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     *            constraints: multiple of 8
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     */
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    void (*float_to_int16)(int16_t *dst, const float *src, long len);
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    /**
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     * Convert multiple arrays of float to an interleaved array of int16_t.
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     *
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     * Convert floats from in the range [-32768.0,32767.0] to ints
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     * without rescaling
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     *
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     * @param dst destination array of interleaved int16_t.
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     *            constraints: 16-byte aligned
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     * @param src source array of float arrays, one for each channel.
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     *            constraints: 16-byte aligned
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     * @param len number of elements to convert.
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     *            constraints: multiple of 8
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     * @param channels number of channels
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     */
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    void (*float_to_int16_interleave)(int16_t *dst, const float **src,
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                                      long len, int channels);
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} FmtConvertContext;
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void ff_fmt_convert_init(FmtConvertContext *c, AVCodecContext *avctx);
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void ff_fmt_convert_init_arm(FmtConvertContext *c, AVCodecContext *avctx);
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void ff_fmt_convert_init_ppc(FmtConvertContext *c, AVCodecContext *avctx);
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void ff_fmt_convert_init_x86(FmtConvertContext *c, AVCodecContext *avctx);
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#endif /* AVCODEC_FMTCONVERT_H */