mirror of https://git.ffmpeg.org/ffmpeg.git
151 lines
4.3 KiB
C
151 lines
4.3 KiB
C
/*
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* Copyright (c) 2023 Institue of Software Chinese Academy of Sciences (ISCAS).
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* Copyright (c) 2024 Geoff Hill <geoff@geoffhill.org>
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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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with FFmpeg; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdint.h>
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#include <string.h>
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#include "libavutil/mem.h"
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#include "libavutil/mem_internal.h"
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#include "libavcodec/ac3dsp.h"
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#include "checkasm.h"
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#define randomize_exp(buf, len) \
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do { \
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int i; \
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for (i = 0; i < len; i++) { \
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buf[i] = (uint8_t)rnd(); \
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} \
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} while (0)
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#define randomize_i24(buf, len) \
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do { \
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int i; \
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for (i = 0; i < len; i++) { \
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int32_t v = (int32_t)rnd(); \
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int32_t u = (v & 0xFFFFFF); \
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buf[i] = (v < 0) ? -u : u; \
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} \
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} while (0)
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#define randomize_float(buf, len) \
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do { \
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int i; \
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for (i = 0; i < len; i++) { \
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float f = (float)rnd() / (UINT_MAX >> 5) - 16.0f; \
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buf[i] = f; \
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} \
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} while (0)
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static void check_ac3_exponent_min(AC3DSPContext *c) {
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#define MAX_COEFS 256
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#define MAX_CTXT 6
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#define EXP_SIZE (MAX_CTXT * MAX_COEFS)
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LOCAL_ALIGNED_16(uint8_t, src, [EXP_SIZE]);
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LOCAL_ALIGNED_16(uint8_t, v1, [EXP_SIZE]);
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LOCAL_ALIGNED_16(uint8_t, v2, [EXP_SIZE]);
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int n;
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declare_func(void, uint8_t *, int, int);
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for (n = 0; n < MAX_CTXT; ++n) {
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if (check_func(c->ac3_exponent_min, "ac3_exponent_min_reuse%d", n)) {
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randomize_exp(src, EXP_SIZE);
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memcpy(v1, src, EXP_SIZE);
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memcpy(v2, src, EXP_SIZE);
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call_ref(v1, n, MAX_COEFS);
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call_new(v2, n, MAX_COEFS);
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if (memcmp(v1, v2, EXP_SIZE) != 0)
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fail();
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bench_new(v2, n, MAX_COEFS);
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}
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}
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report("ac3_exponent_min");
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}
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static void check_ac3_extract_exponents(AC3DSPContext *c) {
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#define MAX_EXPS 3072
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LOCAL_ALIGNED_16(int32_t, src, [MAX_EXPS]);
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LOCAL_ALIGNED_16(uint8_t, v1, [MAX_EXPS]);
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LOCAL_ALIGNED_16(uint8_t, v2, [MAX_EXPS]);
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int n;
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declare_func(void, uint8_t *, int32_t *, int);
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for (n = 512; n <= MAX_EXPS; n += 256) {
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if (check_func(c->extract_exponents, "ac3_extract_exponents_n%d", n)) {
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randomize_i24(src, n);
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call_ref(v1, src, n);
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call_new(v2, src, n);
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if (memcmp(v1, v2, n) != 0)
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fail();
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bench_new(v1, src, n);
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}
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}
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report("ac3_extract_exponents");
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}
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static void check_float_to_fixed24(AC3DSPContext *c) {
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#define BUF_SIZE 1024
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LOCAL_ALIGNED_32(float, src, [BUF_SIZE]);
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declare_func(void, int32_t *, const float *, size_t);
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randomize_float(src, BUF_SIZE);
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if (check_func(c->float_to_fixed24, "float_to_fixed24")) {
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LOCAL_ALIGNED_32(int32_t, dst, [BUF_SIZE]);
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LOCAL_ALIGNED_32(int32_t, dst2, [BUF_SIZE]);
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call_ref(dst, src, BUF_SIZE);
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call_new(dst2, src, BUF_SIZE);
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if (memcmp(dst, dst2, BUF_SIZE) != 0)
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fail();
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bench_new(dst, src, BUF_SIZE);
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}
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report("float_to_fixed24");
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}
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void checkasm_check_ac3dsp(void)
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{
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AC3DSPContext c;
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ff_ac3dsp_init(&c);
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check_ac3_exponent_min(&c);
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check_ac3_extract_exponents(&c);
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check_float_to_fixed24(&c);
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}
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