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/*
* Copyright (c) 2015 James Almer
*
* 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 <string.h>
#include "checkasm.h"
#include "libavcodec/flacdsp.h"
#include "libavcodec/mathops.h"
#include "libavutil/common.h"
#include "libavutil/internal.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mem_internal.h"
#define BUF_SIZE 256
#define MAX_CHANNELS 8
#define randomize_buffers() \
do { \
int i, j; \
for (i = 0; i < BUF_SIZE; i += 4) { \
for (j = 0; j < channels; j++) { \
uint32_t r = rnd() & (1 << (bits - 2)) - 1; \
AV_WN32A(ref_src[j] + i, r); \
AV_WN32A(new_src[j] + i, r); \
} \
} \
} while (0)
static void check_decorrelate(uint8_t **ref_dst, uint8_t **ref_src, uint8_t **new_dst, uint8_t **new_src,
int channels, int bits) {
declare_func(void, uint8_t **out, int32_t **in, int channels, int len, int shift);
randomize_buffers();
call_ref(ref_dst, (int32_t **)ref_src, channels, BUF_SIZE / sizeof(int32_t), 8);
call_new(new_dst, (int32_t **)new_src, channels, BUF_SIZE / sizeof(int32_t), 8);
if (memcmp(*ref_dst, *new_dst, bits == 16 ? BUF_SIZE * (channels/2) : BUF_SIZE * channels) ||
memcmp(*ref_src, *new_src, BUF_SIZE * channels))
fail();
bench_new(new_dst, (int32_t **)new_src, channels, BUF_SIZE / sizeof(int32_t), 8);
}
static void check_lpc(int pred_order, int bps)
{
int qlevel = rnd() % 16;
int coeff_prec = (rnd() % 15) + 1;
LOCAL_ALIGNED_16(int32_t, coeffs, [32]);
LOCAL_ALIGNED_16(int32_t, dst, [BUF_SIZE]);
LOCAL_ALIGNED_16(int32_t, dst0, [BUF_SIZE]);
LOCAL_ALIGNED_16(int32_t, dst1, [BUF_SIZE]);
declare_func(void, int32_t *, const int[32], int, int, int);
if (bps <= 16)
coeff_prec = av_clip(coeff_prec, 0, 32 - bps - av_log2(pred_order));
for (int i = 0; i < 32; i++)
coeffs[i] = sign_extend(rnd(), coeff_prec);
for (int i = 0; i < BUF_SIZE; i++)
dst[i] = sign_extend(rnd(), bps);
memcpy(dst0, dst, BUF_SIZE * sizeof (int32_t));
memcpy(dst1, dst, BUF_SIZE * sizeof (int32_t));
call_ref(dst0, coeffs, pred_order, qlevel, BUF_SIZE);
call_new(dst1, coeffs, pred_order, qlevel, BUF_SIZE);
if (memcmp(dst0, dst1, BUF_SIZE * sizeof (int32_t)) != 0)
fail();
bench_new(dst, coeffs, pred_order, qlevel, BUF_SIZE);
}
void checkasm_check_flacdsp(void)
{
LOCAL_ALIGNED_16(uint8_t, ref_dst, [BUF_SIZE*MAX_CHANNELS]);
LOCAL_ALIGNED_16(uint8_t, ref_buf, [BUF_SIZE*MAX_CHANNELS]);
LOCAL_ALIGNED_16(uint8_t, new_dst, [BUF_SIZE*MAX_CHANNELS]);
LOCAL_ALIGNED_16(uint8_t, new_buf, [BUF_SIZE*MAX_CHANNELS]);
uint8_t *ref_src[] = { &ref_buf[BUF_SIZE*0], &ref_buf[BUF_SIZE*1], &ref_buf[BUF_SIZE*2], &ref_buf[BUF_SIZE*3],
&ref_buf[BUF_SIZE*4], &ref_buf[BUF_SIZE*5], &ref_buf[BUF_SIZE*6], &ref_buf[BUF_SIZE*7] };
uint8_t *new_src[] = { &new_buf[BUF_SIZE*0], &new_buf[BUF_SIZE*1], &new_buf[BUF_SIZE*2], &new_buf[BUF_SIZE*3],
&new_buf[BUF_SIZE*4], &new_buf[BUF_SIZE*5], &new_buf[BUF_SIZE*6], &new_buf[BUF_SIZE*7] };
static const char * const names[3] = { "ls", "rs", "ms" };
static const struct {
enum AVSampleFormat fmt;
int bits;
} fmts[] = {
{ AV_SAMPLE_FMT_S16, 16 },
{ AV_SAMPLE_FMT_S32, 32 },
};
static const signed char pred_orders[] = { 13, 16, 29, 32 };
FLACDSPContext h;
int i, j;
for (i = 0; i < 2; i++) {
ff_flacdsp_init(&h, fmts[i].fmt, 2);
for (j = 0; j < 3; j++)
if (check_func(h.decorrelate[j + 1], "flac_decorrelate_%s_%d", names[j], fmts[i].bits))
check_decorrelate(&ref_dst, ref_src, &new_dst, new_src, 2, fmts[i].bits);
for (j = 2; j <= MAX_CHANNELS; j += 2) {
ff_flacdsp_init(&h, fmts[i].fmt, j);
if (check_func(h.decorrelate[0], "flac_decorrelate_indep%d_%d", j, fmts[i].bits))
check_decorrelate(&ref_dst, ref_src, &new_dst, new_src, j, fmts[i].bits);
}
}
report("decorrelate");
for (i = 0; i < FF_ARRAY_ELEMS(pred_orders); i++)
if (check_func(h.lpc16, "flac_lpc_16_%d", pred_orders[i]))
check_lpc(pred_orders[i], 16);
for (i = 0; i < FF_ARRAY_ELEMS(pred_orders); i++)
if (check_func(h.lpc32, "flac_lpc_32_%d", pred_orders[i]))
check_lpc(pred_orders[i], 32);
report("lpc");
}
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