Built SDL2_image and _mixer static
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92
libsdl2_mixer/external/opus-1.0.3/celt/tests/test_unit_laplace.c
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libsdl2_mixer/external/opus-1.0.3/celt/tests/test_unit_laplace.c
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/* Copyright (c) 2008-2011 Xiph.Org Foundation, Mozilla Corporation
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Written by Jean-Marc Valin and Timothy B. Terriberry */
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/*
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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- Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include "laplace.h"
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#define CELT_C
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#include "stack_alloc.h"
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#include "entenc.c"
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#include "entdec.c"
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#include "entcode.c"
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#include "laplace.c"
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#define DATA_SIZE 40000
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int ec_laplace_get_start_freq(int decay)
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{
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opus_uint32 ft = 32768 - LAPLACE_MINP*(2*LAPLACE_NMIN+1);
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int fs = (ft*(16384-decay))/(16384+decay);
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return fs+LAPLACE_MINP;
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}
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int main(void)
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{
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int i;
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int ret = 0;
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ec_enc enc;
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ec_dec dec;
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unsigned char *ptr;
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int val[10000], decay[10000];
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ALLOC_STACK;
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ptr = (unsigned char *)malloc(DATA_SIZE);
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ec_enc_init(&enc,ptr,DATA_SIZE);
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val[0] = 3; decay[0] = 6000;
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val[1] = 0; decay[1] = 5800;
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val[2] = -1; decay[2] = 5600;
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for (i=3;i<10000;i++)
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{
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val[i] = rand()%15-7;
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decay[i] = rand()%11000+5000;
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}
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for (i=0;i<10000;i++)
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ec_laplace_encode(&enc, &val[i],
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ec_laplace_get_start_freq(decay[i]), decay[i]);
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ec_enc_done(&enc);
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ec_dec_init(&dec,ec_get_buffer(&enc),ec_range_bytes(&enc));
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for (i=0;i<10000;i++)
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{
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int d = ec_laplace_decode(&dec,
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ec_laplace_get_start_freq(decay[i]), decay[i]);
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if (d != val[i])
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{
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fprintf (stderr, "Got %d instead of %d\n", d, val[i]);
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ret = 1;
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}
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}
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return ret;
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}
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