tests/checkasm/dcadsp.c

   1 /*
   2  * This file is part of FFmpeg.
   3  *
   4  * FFmpeg is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * FFmpeg is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include <stdint.h>
  20 #include <string.h>
  21
  22 #include "libavcodec/dcadata.h"
  23 #include "libavcodec/dcadsp.h"
  24 #include "libavutil/common.h"
  25 #include "libavutil/mem_internal.h"
  26
  27 #include "checkasm.h"
  28
  29 #define N 32
  30 #define BLOCKSIZE 128
  31 #define BUF_SIZE (N * BLOCKSIZE)
  32 #define LFE_HISTORY 8
  33 #define LFE_SIZE (N + LFE_HISTORY + 1)
  34
  35 /* sign_extend(rnd(), 23) would be the correct approach here,
  36  * but it results in differences that would require a much
  37  * bigger EPS value, thus we use 16 (simplified as a cast). */
  38 #define randomize(buf, len) do {   \
  39     for (int i = 0; i < len; i++)  \
  40         (buf)[i] = (int16_t)rnd(); \
  41 } while (0)
  42
  43 #define EPS 0.0005f
  44
  45 static void test_lfe_fir_float(const DCADSPContext *dca)
  46 {
  47     LOCAL_ALIGNED_16(float, dst0,  [BUF_SIZE]);
  48     LOCAL_ALIGNED_16(float, dst1,  [BUF_SIZE]);
  49     LOCAL_ALIGNED_16(int32_t, lfe, [LFE_SIZE]);
  50
  51     declare_func(void, float *pcm_samples, const int32_t *lfe_samples,
  52                        const float *filter_coeff, ptrdiff_t npcmblocks);
  53
  54     for (int i = 0; i < 2; i++) {
  55         const float *coeffs = i ? ff_dca_lfe_fir_128 : ff_dca_lfe_fir_64;
  56         if (check_func(dca->lfe_fir_float[i], "lfe_fir%d_float", i)) {
  57             memset(dst0, 0, BUF_SIZE * sizeof(float));
  58             memset(dst1, 0, BUF_SIZE * sizeof(float));
  59             randomize(lfe, LFE_SIZE);
  60             call_ref(dst0, lfe + LFE_HISTORY, coeffs, N);
  61             call_new(dst1, lfe + LFE_HISTORY, coeffs, N);
  62             if (!float_near_abs_eps_array(dst0, dst1, EPS, BUF_SIZE))
  63                 fail();
  64             bench_new(dst1, lfe + LFE_HISTORY, coeffs, N);
  65         }
  66     }
  67 }
  68
  69 static void test_lfe_fir_fixed(void)
  70 {
  71     LOCAL_ALIGNED_16(int32_t, dst0, [BUF_SIZE]);
  72     LOCAL_ALIGNED_16(int32_t, dst1, [BUF_SIZE]);
  73     LOCAL_ALIGNED_16(int32_t, lfe,  [LFE_SIZE]);
  74     const int32_t *coeffs = ff_dca_lfe_fir_64_fixed;
  75
  76     declare_func(void, int32_t *pcm_samples, const int32_t *lfe_samples,
  77                        const int32_t *filter_coeff, ptrdiff_t npcmblocks);
  78
  79     memset(dst0, 0, BUF_SIZE * sizeof(int32_t));
  80     memset(dst1, 0, BUF_SIZE * sizeof(int32_t));
  81     randomize(lfe, LFE_SIZE);
  82     call_ref(dst0, lfe + LFE_HISTORY, coeffs, N);
  83     call_new(dst1, lfe + LFE_HISTORY, coeffs, N);
  84     if (memcmp(dst0, dst1, BUF_SIZE * sizeof(int32_t)))
  85         fail();
  86     bench_new(dst1, lfe + LFE_HISTORY, coeffs, N);
  87 }
  88
  89 void checkasm_check_dcadsp(void)
  90 {
  91     DCADSPContext dca;
  92
  93     ff_dcadsp_init(&dca);
  94
  95     test_lfe_fir_float(&dca);
  96     report("lfe_fir_float");
  97
  98     if (check_func(dca.lfe_fir_fixed, "lfe_fir_fixed"))
  99         test_lfe_fir_fixed();
 100     report("lfe_fir_fixed");
 101 }