tests/checkasm/opusdsp.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 "libavutil/mem_internal.h"
  20
  21 #include "libavcodec/opus/dsp.h"
  22 #include "libavcodec/opus/tab.h"
  23
  24 #include "checkasm.h"
  25
  26 #define randomize_float(buf, len)                               \
  27     do {                                                        \
  28         for (int i = 0; i < len; i++) {                         \
  29             float f = (float)rnd() / (UINT_MAX >> 5) - 16.0f;   \
  30             buf[i] = f;                                         \
  31         }                                                       \
  32     } while (0)
  33
  34 #define EPS 0.005
  35 #define MAX_SIZE (960)
  36
  37 /* period is between 15 and 1022, inclusive */
  38 static void test_postfilter(int period)
  39 {
  40     LOCAL_ALIGNED(16, float, data0, [MAX_SIZE + 1024]);
  41     LOCAL_ALIGNED(16, float, data1, [MAX_SIZE + 1024]);
  42
  43     /* This filter can explode very easily, so use a tapset from the codec.
  44      * In the codec these are usually multiplied by at least 0.09375f,
  45      * so its outside the largest filter value, but the filter is still stable
  46      * so use it. */
  47     float gains[3] = { 0.3066406250f, 0.2170410156f, 0.1296386719f };
  48
  49     /* The codec will always call with an offset which is aligned once
  50      * (period + 2) is subtracted, but here we have to align it ourselves. */
  51     int offset = FFALIGN(period + 2, 4);
  52
  53     declare_func(void, float *data, int period, float *gains, int len);
  54
  55     randomize_float(data0, MAX_SIZE + 1024);
  56     memcpy(data1, data0, (MAX_SIZE + 1024)*sizeof(float));
  57
  58     call_ref(data0 + offset, period, gains, MAX_SIZE);
  59     call_new(data1 + offset, period, gains, MAX_SIZE);
  60
  61     if (!float_near_abs_eps_array(data0 + offset, data1 + offset, EPS, MAX_SIZE))
  62         fail();
  63     bench_new(data1 + offset, period, gains, MAX_SIZE);
  64 }
  65
  66 static void test_deemphasis(void)
  67 {
  68     LOCAL_ALIGNED(16, float, src, [FFALIGN(MAX_SIZE, 4)]);
  69     LOCAL_ALIGNED(16, float, dst0, [FFALIGN(MAX_SIZE, 4)]);
  70     LOCAL_ALIGNED(16, float, dst1, [FFALIGN(MAX_SIZE, 4)]);
  71     float coeff0 = (float)rnd() / (UINT_MAX >> 5) - 16.0f, coeff1 = coeff0;
  72
  73     declare_func_float(float, float *out, float *in, float coeff, const float *weights, int len);
  74
  75     randomize_float(src, MAX_SIZE);
  76
  77     coeff0 = call_ref(dst0, src, coeff0, ff_opus_deemph_weights, MAX_SIZE);
  78     coeff1 = call_new(dst1, src, coeff1, ff_opus_deemph_weights, MAX_SIZE);
  79
  80     if (!float_near_abs_eps(coeff0, coeff1, EPS) ||
  81         !float_near_abs_eps_array(dst0, dst1, EPS, MAX_SIZE))
  82         fail();
  83     bench_new(dst1, src, coeff1, ff_opus_deemph_weights, MAX_SIZE);
  84 }
  85
  86 void checkasm_check_opusdsp(void)
  87 {
  88     OpusDSP ctx;
  89     ff_opus_dsp_init(&ctx);
  90
  91     if (check_func(ctx.postfilter, "postfilter_15"))
  92         test_postfilter(15);
  93     report("postfilter_15");
  94
  95     if (check_func(ctx.postfilter, "postfilter_512"))
  96         test_postfilter(512);
  97     report("postfilter_512");
  98
  99     if (check_func(ctx.postfilter, "postfilter_1022"))
 100         test_postfilter(1022);
 101     report("postfilter_1022");
 102
 103     if (check_func(ctx.deemphasis, "deemphasis"))
 104         test_deemphasis();
 105     report("deemphasis");
 106 }