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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU 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.
*/
#include "libavutil/mem_internal.h"
#include "libavcodec/opus/dsp.h"
#include "libavcodec/opus/tab.h"
#include "checkasm.h"
#define randomize_float(buf, len) \
do { \
for (int i = 0; i < len; i++) { \
float f = (float)rnd() / (UINT_MAX >> 5) - 16.0f; \
buf[i] = f; \
} \
} while (0)
#define EPS 0.005
#define MAX_SIZE (960)
/* period is between 15 and 1022, inclusive */
static void test_postfilter(int period)
{
LOCAL_ALIGNED(16, float, data0, [MAX_SIZE + 1024]);
LOCAL_ALIGNED(16, float, data1, [MAX_SIZE + 1024]);
/* This filter can explode very easily, so use a tapset from the codec.
* In the codec these are usually multiplied by at least 0.09375f,
* so its outside the largest filter value, but the filter is still stable
* so use it. */
float gains[3] = { 0.3066406250f, 0.2170410156f, 0.1296386719f };
/* The codec will always call with an offset which is aligned once
* (period + 2) is subtracted, but here we have to align it outselves. */
int offset = FFALIGN(period + 2, 4);
declare_func(void, float *data, int period, float *gains, int len);
randomize_float(data0, MAX_SIZE + 1024);
memcpy(data1, data0, (MAX_SIZE + 1024)*sizeof(float));
call_ref(data0 + offset, period, gains, MAX_SIZE);
call_new(data1 + offset, period, gains, MAX_SIZE);
if (!float_near_abs_eps_array(data0 + offset, data1 + offset, EPS, MAX_SIZE))
fail();
bench_new(data1 + offset, period, gains, MAX_SIZE);
}
static void test_deemphasis(void)
{
LOCAL_ALIGNED(16, float, src, [FFALIGN(MAX_SIZE, 4)]);
LOCAL_ALIGNED(16, float, dst0, [FFALIGN(MAX_SIZE, 4)]);
LOCAL_ALIGNED(16, float, dst1, [FFALIGN(MAX_SIZE, 4)]);
float coeff0 = (float)rnd() / (UINT_MAX >> 5) - 16.0f, coeff1 = coeff0;
declare_func_float(float, float *out, float *in, float coeff, const float *weights, int len);
randomize_float(src, MAX_SIZE);
coeff0 = call_ref(dst0, src, coeff0, ff_opus_deemph_weights, MAX_SIZE);
coeff1 = call_new(dst1, src, coeff1, ff_opus_deemph_weights, MAX_SIZE);
if (!float_near_abs_eps(coeff0, coeff1, EPS) ||
!float_near_abs_eps_array(dst0, dst1, EPS, MAX_SIZE))
fail();
bench_new(dst1, src, coeff1, ff_opus_deemph_weights, MAX_SIZE);
}
void checkasm_check_opusdsp(void)
{
OpusDSP ctx;
ff_opus_dsp_init(&ctx);
if (check_func(ctx.postfilter, "postfilter_15"))
test_postfilter(15);
report("postfilter_15");
if (check_func(ctx.postfilter, "postfilter_512"))
test_postfilter(512);
report("postfilter_512");
if (check_func(ctx.postfilter, "postfilter_1022"))
test_postfilter(1022);
report("postfilter_1022");
if (check_func(ctx.deemphasis, "deemphasis"))
test_deemphasis();
report("deemphasis");
}
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