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/*
* Copyright (c) 2015 Janne Grunau
*
* 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 <math.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "libavutil/internal.h"
#include "libavutil/intfloat.h"
#include "libavutil/mem_internal.h"
#include "libavutil/tx.h"
#include "libavcodec/dcadata.h"
#include "libavcodec/synth_filter.h"
#include "checkasm.h"
#define BUF_SIZE 32
#define randomize_input() \
do { \
int i; \
for (i = 0; i < BUF_SIZE; i++) { \
float f = (float)rnd() / (UINT_MAX >> 5) - 16.0f; \
in[i] = f; \
} \
} while (0)
void checkasm_check_synth_filter(void)
{
float scale = 1.0;
AVTXContext *imdct;
av_tx_fn imdct_fn;
SynthFilterContext synth;
av_tx_init(&imdct, &imdct_fn, AV_TX_FLOAT_MDCT, 0, 16, &scale, 0);
ff_synth_filter_init(&synth);
if (check_func(synth.synth_filter_float, "synth_filter_float")) {
LOCAL_ALIGNED(32, float, out0, [BUF_SIZE]);
LOCAL_ALIGNED(32, float, out1, [BUF_SIZE]);
LOCAL_ALIGNED(32, float, out_b, [BUF_SIZE]);
LOCAL_ALIGNED(32, float, in, [BUF_SIZE]);
LOCAL_ALIGNED(32, float, buf2_0, [BUF_SIZE]);
LOCAL_ALIGNED(32, float, buf2_1, [BUF_SIZE]);
LOCAL_ALIGNED(32, float, buf2_b, [BUF_SIZE]);
LOCAL_ALIGNED(32, float, buf0, [512]);
LOCAL_ALIGNED(32, float, buf1, [512]);
LOCAL_ALIGNED(32, float, buf_b, [512]);
float scale = 1.0f;
int i, offset0 = 0, offset1 = 0, offset_b = 0;
declare_func(void, AVTXContext *, float *, int *,
float[32], const float[512], float[32], float[32], float, av_tx_fn);
memset(buf2_0, 0, sizeof(*buf2_0) * BUF_SIZE);
memset(buf2_1, 0, sizeof(*buf2_1) * BUF_SIZE);
memset(buf2_b, 0, sizeof(*buf2_b) * BUF_SIZE);
memset(buf0, 0, sizeof(*buf2_0) * 512);
memset(buf1, 0, sizeof(*buf2_1) * 512);
memset(buf_b, 0, sizeof(*buf2_b) * 512);
/* more than 1 synth_buf_offset wrap-around */
for (i = 0; i < 20; i++) {
int j;
const float * window = (i & 1) ? ff_dca_fir_32bands_perfect : ff_dca_fir_32bands_nonperfect;
memset(out0, 0, sizeof(*out0) * BUF_SIZE);
memset(out1, 0, sizeof(*out1) * BUF_SIZE);
memset(out_b, 0, sizeof(*out_b) * BUF_SIZE);
randomize_input();
call_ref(imdct, buf0, &offset0, buf2_0, window,
out0, in, scale, imdct_fn);
call_new(imdct, buf1, &offset1, buf2_1, window,
out1, in, scale, imdct_fn);
if (offset0 != offset1) {
fail();
fprintf(stderr, "offsets do not match: %d, %d", offset0, offset1);
break;
}
for (j = 0; j < BUF_SIZE; j++) {
if (!float_near_abs_eps_ulp(out0[j], out1[j], 7.0e-7, 16) ||
!float_near_abs_eps_ulp(buf2_0[j], buf2_1[j], 7.0e-7, 16)) {
union av_intfloat32 o0, o1, b0, b1;
fail();
o0.f = out0[j]; o1.f = out1[j];
b0.f = buf2_0[j], b1.f = buf2_1[j];
fprintf(stderr, "out: %11g (0x%08x); %11g (0x%08x); abs diff %11g\n",
o0.f, o0.i, o1.f, o1.i, fabsf(o0.f - o1.f));
fprintf(stderr, "buf2: %11g (0x%08x); %11g (0x%08x); abs diff %11g\n",
b0.f, b0.i, b1.f, b1.i, fabsf(b0.f - b1.f));
break;
}
}
bench_new(imdct, buf_b, &offset_b, buf2_b, window,
out_b, in, scale, imdct_fn);
}
}
av_tx_uninit(&imdct);
report("synth_filter");
}
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