mirror of
https://github.com/FFmpeg/FFmpeg.git
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1978b143eb
This sadly required making changes to the code itself, due to the same context needing to be reused for both versions. The lookup table had to be duplicated for both versions.
109 lines
5.7 KiB
C
109 lines
5.7 KiB
C
/*
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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 "libavutil/mem_internal.h"
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#include "libavutil/tx.h"
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#include "libavutil/error.h"
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#include "checkasm.h"
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#define EPS 0.00005
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#define SCALE_NOOP(x) (x)
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#define SCALE_INT20(x) (av_clip64(lrintf((x) * 2147483648.0), INT32_MIN, INT32_MAX) >> 12)
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#define randomize_complex(BUF, LEN, TYPE, SCALE) \
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do { \
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TYPE *buf = (TYPE *)BUF; \
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for (int i = 0; i < LEN; i++) { \
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double fre = (double)rnd() / UINT_MAX; \
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double fim = (double)rnd() / UINT_MAX; \
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buf[i] = (TYPE){ SCALE(fre), SCALE(fim) }; \
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} \
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} while (0)
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static const int check_lens[] = {
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2, 4, 8, 16, 32, 64, 1024, 16384,
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};
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#define CHECK_TEMPLATE(PREFIX, TYPE, DATA_TYPE, SCALE, LENGTHS, CHECK_EXPRESSION) \
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do { \
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int err; \
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AVTXContext *tx; \
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av_tx_fn fn; \
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int num_checks = 0; \
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int last_check = 0; \
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const void *scale = &SCALE; \
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\
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for (int i = 0; i < FF_ARRAY_ELEMS(LENGTHS); i++) { \
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int len = LENGTHS[i]; \
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\
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if ((err = av_tx_init(&tx, &fn, TYPE, 0, len, &scale, 0x0)) < 0) { \
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fprintf(stderr, "av_tx: %s\n", av_err2str(err)); \
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return; \
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} \
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\
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if (check_func(fn, PREFIX "_%i", len)) { \
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num_checks++; \
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last_check = len; \
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call_ref(tx, out_ref, in, sizeof(DATA_TYPE)); \
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call_new(tx, out_new, in, sizeof(DATA_TYPE)); \
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if (CHECK_EXPRESSION) { \
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fail(); \
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break; \
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} \
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bench_new(tx, out_new, in, sizeof(DATA_TYPE)); \
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} \
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\
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av_tx_uninit(&tx); \
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fn = NULL; \
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} \
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\
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av_tx_uninit(&tx); \
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fn = NULL; \
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\
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if (num_checks == 1) \
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report(PREFIX "_%i", last_check); \
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else if (num_checks) \
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report(PREFIX); \
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} while (0)
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void checkasm_check_av_tx(void)
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{
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const float scale_float = 1.0f;
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const double scale_double = 1.0f;
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declare_func(void, AVTXContext *tx, void *out, void *in, ptrdiff_t stride);
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void *in = av_malloc(16384*2*8);
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void *out_ref = av_malloc(16384*2*8);
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void *out_new = av_malloc(16384*2*8);
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randomize_complex(in, 16384, AVComplexFloat, SCALE_NOOP);
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CHECK_TEMPLATE("float_fft", AV_TX_FLOAT_FFT, AVComplexFloat, scale_float, check_lens,
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!float_near_abs_eps_array(out_ref, out_new, EPS, len*2));
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randomize_complex(in, 16384, AVComplexDouble, SCALE_NOOP);
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CHECK_TEMPLATE("double_fft", AV_TX_DOUBLE_FFT, AVComplexDouble, scale_double, check_lens,
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!double_near_abs_eps_array(out_ref, out_new, EPS, len*2));
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av_free(in);
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av_free(out_ref);
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av_free(out_new);
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}
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