tests/checkasm/vorbisdsp.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 <float.h>
  20
  21 #include "libavutil/mem_internal.h"
  22
  23 #include "libavcodec/vorbisdsp.h"
  24
  25 #include "checkasm.h"
  26
  27 #define LEN 512
  28
  29 #define randomize_buffer(buf)                 \
  30 do {                                          \
  31     double bmg[2], stddev = 10.0, mean = 0.0; \
  32                                               \
  33     for (int i = 0; i < LEN; i += 2) {        \
  34         av_bmg_get(&checkasm_lfg, bmg);       \
  35         buf[i]     = bmg[0] * stddev + mean;  \
  36         buf[i + 1] = bmg[1] * stddev + mean;  \
  37     }                                         \
  38 } while(0);
  39
  40 static void test_inverse_coupling(void)
  41 {
  42     LOCAL_ALIGNED_16(float, src0,  [LEN]);
  43     LOCAL_ALIGNED_16(float, src1,  [LEN]);
  44     LOCAL_ALIGNED_16(float, cdst,  [LEN]);
  45     LOCAL_ALIGNED_16(float, odst,  [LEN]);
  46     LOCAL_ALIGNED_16(float, cdst1, [LEN]);
  47     LOCAL_ALIGNED_16(float, odst1, [LEN]);
  48
  49     declare_func(void, float *restrict mag, float *restrict ang,
  50                  ptrdiff_t blocksize);
  51
  52     randomize_buffer(src0);
  53     randomize_buffer(src1);
  54
  55     memcpy(cdst,  src0, LEN * sizeof(*src0));
  56     memcpy(cdst1, src1, LEN * sizeof(*src1));
  57     memcpy(odst,  src0, LEN * sizeof(*src0));
  58     memcpy(odst1, src1, LEN * sizeof(*src1));
  59
  60     call_ref(cdst, cdst1, LEN);
  61     call_new(odst, odst1, LEN);
  62     for (int i = 0; i < LEN; i++) {
  63         if (!float_near_abs_eps(cdst[i],  odst[i],  FLT_EPSILON) ||
  64             !float_near_abs_eps(cdst1[i], odst1[i], FLT_EPSILON)) {
  65             fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
  66                     i, cdst[i], odst[i], cdst[i] - odst[i]);
  67             fprintf(stderr, "%d: %- .12f - %- .12f = % .12g\n",
  68                     i, cdst1[i], odst1[i], cdst1[i] - odst1[i]);
  69             fail();
  70             break;
  71         }
  72     }
  73     bench_new(src0, src1, LEN);
  74 }
  75
  76 void checkasm_check_vorbisdsp(void)
  77 {
  78     VorbisDSPContext dsp;
  79
  80     ff_vorbisdsp_init(&dsp);
  81
  82     if (check_func(dsp.vorbis_inverse_coupling, "inverse_coupling"))
  83         test_inverse_coupling();
  84     report("inverse_coupling");
  85 }