LCOV - code coverage report
Current view: top level - tests/checkasm - alacdsp.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 43 45 95.6 %
Date: 2017-10-18 21:45:51 Functions: 3 3 100.0 %

          Line data    Source code
       1             : /*
       2             :  * Copyright (c) 2015 James Almer
       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 <string.h>
      22             : #include "checkasm.h"
      23             : #include "libavcodec/alacdsp.h"
      24             : #include "libavcodec/mathops.h"
      25             : #include "libavutil/common.h"
      26             : #include "libavutil/internal.h"
      27             : 
      28             : #define BUF_SIZE 256
      29             : #define MAX_CHANNELS 2
      30             : 
      31             : #define randomize_buffers()                           \
      32             :     do {                                              \
      33             :         int i;                                        \
      34             :         for (i = 0; i < BUF_SIZE*MAX_CHANNELS; i++) { \
      35             :             int32_t r = sign_extend(rnd(), 24);       \
      36             :             ref_buf[i] = r;                           \
      37             :             new_buf[i] = r;                           \
      38             :         }                                             \
      39             :     } while (0)
      40             : 
      41          13 : static void check_decorrelate_stereo(void)
      42             : {
      43          13 :     LOCAL_ALIGNED_16(int32_t, ref_buf, [BUF_SIZE*MAX_CHANNELS]);
      44          13 :     LOCAL_ALIGNED_16(int32_t, new_buf, [BUF_SIZE*MAX_CHANNELS]);
      45          13 :     int32_t *ref[2] = { &ref_buf[BUF_SIZE*0], &ref_buf[BUF_SIZE*1] };
      46          13 :     int32_t *new[2] = { &new_buf[BUF_SIZE*0], &new_buf[BUF_SIZE*1] };
      47             :     ALACDSPContext c;
      48             : 
      49          13 :     ff_alacdsp_init(&c);
      50          13 :     if (check_func(c.decorrelate_stereo, "alac_decorrelate_stereo")) {
      51           2 :         int len    = (rnd() & 0xFF) + 1;
      52           2 :         int shift  =  rnd() & 0x1F;
      53           2 :         int weight =  rnd() & 0xFF;
      54           2 :         declare_func(void, int32_t *buf[2], int len, int shift, int weight);
      55             : 
      56           2 :         randomize_buffers();
      57           2 :         call_ref(ref, len, shift, weight);
      58           2 :         call_new(new, len, shift, weight);
      59           4 :         if (memcmp(ref[0], new[0], len * sizeof(int32_t)) ||
      60           2 :             memcmp(ref[1], new[1], len * sizeof(int32_t)))
      61           0 :             fail();
      62           2 :         bench_new(new, BUF_SIZE, shift, weight);
      63             :     }
      64             : 
      65          13 :     report("decorrelate_stereo");
      66          13 : }
      67             : 
      68             : #undef randomize_buffers
      69             : #define randomize_buffers()                           \
      70             :     do {                                              \
      71             :         int i, j;                                     \
      72             :         for (i = 0; i < BUF_SIZE; i++) {              \
      73             :             for (j = 0; j < ch; j++) {                \
      74             :                 int32_t r = sign_extend(rnd(), 24);   \
      75             :                 ref[j][i] = r;                        \
      76             :                 new[j][i] = r;                        \
      77             :                 r = rnd() & 0xFF;                     \
      78             :                 ref_ebb[j][i] = r;                    \
      79             :                 new_ebb[j][i] = r;                    \
      80             :             }                                         \
      81             :         }                                             \
      82             :     } while (0)
      83             : 
      84          13 : static void check_append_extra_bits(void)
      85             : {
      86          13 :     LOCAL_ALIGNED_16(int32_t, ref_buf, [BUF_SIZE*MAX_CHANNELS*2]);
      87          13 :     LOCAL_ALIGNED_16(int32_t, new_buf, [BUF_SIZE*MAX_CHANNELS*2]);
      88          13 :     int32_t *ref[2]     = { &ref_buf[BUF_SIZE*0], &ref_buf[BUF_SIZE*1] };
      89          13 :     int32_t *new[2]     = { &new_buf[BUF_SIZE*0], &new_buf[BUF_SIZE*1] };
      90          13 :     int32_t *ref_ebb[2] = { &ref_buf[BUF_SIZE*2], &ref_buf[BUF_SIZE*3] };
      91          13 :     int32_t *new_ebb[2] = { &new_buf[BUF_SIZE*2], &new_buf[BUF_SIZE*3] };
      92             :     ALACDSPContext c;
      93             :     static const char * const channels[2] = { "mono", "stereo" };
      94             :     int ch;
      95             : 
      96          13 :     ff_alacdsp_init(&c);
      97          39 :     for (ch = 1; ch <= 2; ch++) {
      98          26 :         if (check_func(c.append_extra_bits[ch-1], "alac_append_extra_bits_%s", channels[ch-1])) {
      99           4 :             int len    = (rnd() & 0xFF) + 1;
     100           4 :             declare_func(void, int32_t *buf[2], int32_t *ebb[2], int ebits, int ch, int len);
     101             : 
     102           4 :             randomize_buffers();
     103           4 :             call_ref(ref, ref_ebb, 8, ch, len);
     104           4 :             call_new(new, new_ebb, 8, ch, len);
     105           4 :             if (            memcmp(ref[0], new[0], len * sizeof(int32_t)) ||
     106           2 :                 (ch == 2 && memcmp(ref[1], new[1], len * sizeof(int32_t))))
     107           0 :                 fail();
     108           4 :             bench_new(new, new_ebb, 8, ch, BUF_SIZE);
     109             :         }
     110             :     }
     111             : 
     112          13 :     report("append_extra_bits");
     113          13 : }
     114             : 
     115          13 : void checkasm_check_alacdsp(void)
     116             : {
     117          13 :     check_decorrelate_stereo();
     118          13 :     check_append_extra_bits();
     119          13 : }

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