LCOV - code coverage report
Current view: top level - src/tests/checkasm - synth_filter.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 39 50 78.0 %
Date: 2017-01-19 23:52:33 Functions: 1 1 100.0 %

          Line data    Source code
       1             : /*
       2             :  * Copyright (c) 2015 Janne Grunau
       3             :  *
       4             :  * This file is part of FFmpeg.
       5             :  *
       6             :  * FFmpeg is free software; you can redistribute it and/or modify
       7             :  * it under the terms of the GNU General Public License as published by
       8             :  * the Free Software Foundation; either version 2 of the License, or
       9             :  * (at your option) any later version.
      10             :  *
      11             :  * FFmpeg is distributed in the hope that it will be useful,
      12             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      13             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      14             :  * GNU General Public License for more details.
      15             :  *
      16             :  * You should have received a copy of the GNU General Public License along
      17             :  * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
      18             :  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
      19             :  */
      20             : 
      21             : #include <math.h>
      22             : #include <string.h>
      23             : #include <stdio.h>
      24             : #include <stdlib.h>
      25             : 
      26             : #include "libavutil/internal.h"
      27             : #include "libavutil/intfloat.h"
      28             : #include "libavcodec/dcadata.h"
      29             : #include "libavcodec/synth_filter.h"
      30             : 
      31             : #include "checkasm.h"
      32             : 
      33             : #define BUF_SIZE 32
      34             : 
      35             : #define randomize_input()                                       \
      36             :     do {                                                        \
      37             :         int i;                                                  \
      38             :         for (i = 0; i < BUF_SIZE; i++) {                        \
      39             :             float f = (float)rnd() / (UINT_MAX >> 5) - 16.0f;   \
      40             :             in[i] = f;                                          \
      41             :         }                                                       \
      42             :     } while (0)
      43             : 
      44          11 : void checkasm_check_synth_filter(void)
      45             : {
      46             :     FFTContext imdct;
      47             :     SynthFilterContext synth;
      48             : 
      49          11 :     ff_mdct_init(&imdct, 6, 1, 1.0);
      50          11 :     ff_synth_filter_init(&synth);
      51             : 
      52          11 :     if (check_func(synth.synth_filter_float, "synth_filter_float")) {
      53           3 :         LOCAL_ALIGNED(32, float,   out0,   [BUF_SIZE]);
      54           3 :         LOCAL_ALIGNED(32, float,   out1,   [BUF_SIZE]);
      55           3 :         LOCAL_ALIGNED(32, float,   out_b,  [BUF_SIZE]);
      56           3 :         LOCAL_ALIGNED(32, float,   in,     [BUF_SIZE]);
      57           3 :         LOCAL_ALIGNED(32, float,   buf2_0, [BUF_SIZE]);
      58           3 :         LOCAL_ALIGNED(32, float,   buf2_1, [BUF_SIZE]);
      59           3 :         LOCAL_ALIGNED(32, float,   buf2_b, [BUF_SIZE]);
      60           3 :         LOCAL_ALIGNED(32, float,   buf0,   [512]);
      61           3 :         LOCAL_ALIGNED(32, float,   buf1,   [512]);
      62           3 :         LOCAL_ALIGNED(32, float,   buf_b,  [512]);
      63           3 :         float scale = 1.0f;
      64           3 :         int i, offset0 = 0, offset1 = 0, offset_b = 0;
      65             : 
      66           3 :         declare_func(void, FFTContext *, float *, int *, float[32], const float[512],
      67             :                      float[32], float[32], float);
      68             : 
      69           3 :         memset(buf2_0, 0, sizeof(*buf2_0) * BUF_SIZE);
      70           3 :         memset(buf2_1, 0, sizeof(*buf2_1) * BUF_SIZE);
      71           3 :         memset(buf2_b, 0, sizeof(*buf2_b) * BUF_SIZE);
      72           3 :         memset(buf0, 0, sizeof(*buf2_0) * 512);
      73           3 :         memset(buf1, 0, sizeof(*buf2_1) * 512);
      74           3 :         memset(buf_b, 0, sizeof(*buf2_b) * 512);
      75             : 
      76             :         /* more than 1 synth_buf_offset wrap-around */
      77          63 :         for (i = 0; i < 20; i++) {
      78             :             int j;
      79          60 :             const float * window = (i & 1) ? ff_dca_fir_32bands_perfect : ff_dca_fir_32bands_nonperfect;
      80             : 
      81          60 :             memset(out0, 0, sizeof(*out0) * BUF_SIZE);
      82          60 :             memset(out1, 0, sizeof(*out1) * BUF_SIZE);
      83          60 :             memset(out_b, 0, sizeof(*out_b) * BUF_SIZE);
      84             : 
      85          60 :             randomize_input();
      86             : 
      87          60 :             call_ref(&imdct, buf0, &offset0, buf2_0, window,
      88             :                      out0, in, scale);
      89          60 :             call_new(&imdct, buf1, &offset1, buf2_1, window,
      90             :                      out1, in, scale);
      91             : 
      92          60 :             if (offset0 != offset1) {
      93           0 :                 fail();
      94           0 :                 fprintf(stderr, "offsets do not match: %d, %d", offset0, offset1);
      95           0 :                 break;
      96             :             }
      97             : 
      98        1980 :             for (j = 0; j < BUF_SIZE; j++) {
      99        3840 :                 if (!float_near_abs_eps_ulp(out0[j],   out1[j],   7.0e-7, 16) ||
     100        1920 :                     !float_near_abs_eps_ulp(buf2_0[j], buf2_1[j], 7.0e-7, 16)) {
     101             :                     union av_intfloat32 o0, o1, b0, b1;
     102             : 
     103           0 :                     fail();
     104           0 :                     o0.f = out0[j];   o1.f = out1[j];
     105           0 :                     b0.f = buf2_0[j], b1.f = buf2_1[j];
     106           0 :                     fprintf(stderr, "out:  %11g (0x%08x); %11g (0x%08x); abs diff %11g\n",
     107           0 :                             o0.f, o0.i, o1.f, o1.i, fabsf(o0.f - o1.f));
     108           0 :                     fprintf(stderr, "buf2: %11g (0x%08x); %11g (0x%08x); abs diff %11g\n",
     109           0 :                             b0.f, b0.i, b1.f, b1.i, fabsf(b0.f - b1.f));
     110           0 :                     break;
     111             :                 }
     112             :             }
     113             : 
     114          60 :             bench_new(&imdct, buf_b, &offset_b, buf2_b, window,
     115             :                       out_b, in, scale);
     116             :         }
     117             :     }
     118          11 :     ff_mdct_end(&imdct);
     119             : 
     120          11 :     report("synth_filter");
     121          11 : }

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