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  1. /*
  2.  * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
  3.  *
  4.  * This file is part of FFmpeg.
  5.  *
  6.  * FFmpeg is free software; you can redistribute it and/or
  7.  * modify it under the terms of the GNU Lesser General Public
  8.  * License as published by the Free Software Foundation; either
  9.  * version 2.1 of the License, or (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 GNU
  14.  * Lesser General Public License for more details.
  15.  *
  16.  * You should have received a copy of the GNU Lesser General Public
  17.  * License along with FFmpeg; if not, write to the Free Software
  18.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19.  */
  20.  
  21. #include <stdint.h>
  22. #include <stdio.h>
  23.  
  24. #include "libavutil/mem.h"
  25.  
  26. #include "get_bits.h"
  27. #include "golomb.h"
  28. #include "put_bits.h"
  29.  
  30. #define COUNT 8191
  31. #define SIZE (COUNT * 4)
  32.  
  33. int main(void)
  34. {
  35.     int i, ret = 0;
  36.     uint8_t *temp;
  37.     PutBitContext pb;
  38.     GetBitContext gb;
  39.  
  40.     temp = av_malloc(SIZE);
  41.     if (!temp)
  42.         return 2;
  43.  
  44.     init_put_bits(&pb, temp, SIZE);
  45.     for (i = 0; i < COUNT; i++)
  46.         set_ue_golomb(&pb, i);
  47.     flush_put_bits(&pb);
  48.  
  49.     init_get_bits(&gb, temp, 8 * SIZE);
  50.     for (i = 0; i < COUNT; i++) {
  51.         int j, s = show_bits(&gb, 25);
  52.  
  53.         j = get_ue_golomb(&gb);
  54.         if (j != i) {
  55.             fprintf(stderr, "get_ue_golomb: expected %d, got %d. bits: %7x\n",
  56.                     i, j, s);
  57.             ret = 1;
  58.         }
  59.     }
  60.  
  61. #define EXTEND(i) (i << 3 | i & 7)
  62.     init_put_bits(&pb, temp, SIZE);
  63.     for (i = 0; i < COUNT; i++)
  64.         set_ue_golomb(&pb, EXTEND(i));
  65.     flush_put_bits(&pb);
  66.  
  67.     init_get_bits(&gb, temp, 8 * SIZE);
  68.     for (i = 0; i < COUNT; i++) {
  69.         int j, s = show_bits_long(&gb, 32);
  70.  
  71.         j = get_ue_golomb_long(&gb);
  72.         if (j != EXTEND(i)) {
  73.             fprintf(stderr, "get_ue_golomb_long: expected %d, got %d. "
  74.                     "bits: %8x\n", EXTEND(i), j, s);
  75.             ret = 1;
  76.         }
  77.     }
  78.  
  79.     init_put_bits(&pb, temp, SIZE);
  80.     for (i = 0; i < COUNT; i++)
  81.         set_se_golomb(&pb, i - COUNT / 2);
  82.     flush_put_bits(&pb);
  83.  
  84.     init_get_bits(&gb, temp, 8 * SIZE);
  85.     for (i = 0; i < COUNT; i++) {
  86.         int j, s = show_bits(&gb, 25);
  87.  
  88.         j = get_se_golomb(&gb);
  89.         if (j != i - COUNT / 2) {
  90.             fprintf(stderr, "get_se_golomb: expected %d, got %d. bits: %7x\n",
  91.                     i - COUNT / 2, j, s);
  92.             ret = 1;
  93.         }
  94.     }
  95.  
  96.     av_free(temp);
  97.  
  98.     return ret;
  99. }
  100.