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revision 1748, Wed Nov 1 10:00:55 2006 UTC revision 1749, Wed Nov 1 10:01:23 2006 UTC
# Line 19  Line 19 
19   *  along with this program; if not, write to the Free Software   *  along with this program; if not, write to the Free Software
20   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
21   *   *
22   * $Id: xvid_bench.c,v 1.27 2005-11-03 05:44:07 Skal Exp $   * $Id: xvid_bench.c,v 1.27.2.1 2006-11-01 10:01:23 Isibaar Exp $
23   *   *
24   ****************************************************************************/   ****************************************************************************/
25    
# Line 58  Line 58 
58  #include "utils/timer.h"  #include "utils/timer.h"
59  #include "quant/quant_matrix.c"  #include "quant/quant_matrix.c"
60  #include "bitstream/cbp.h"  #include "bitstream/cbp.h"
61    #include "bitstream/bitstream.h"
62    
63  #include <math.h>  #include <math.h>
64    
# Line 1867  Line 1868 
1868  }  }
1869    
1870  /*********************************************************************  /*********************************************************************
1871     * test bitstream functions
1872     *********************************************************************/
1873    
1874    #define BIT_BUF_SIZE 2000
1875    
1876    static void test_bits()
1877    {
1878      const int nb_tests = 50*speed_ref;
1879      int tst;
1880      uint32_t Crc;
1881      uint8_t Buf[BIT_BUF_SIZE];
1882      uint32_t Extracted[BIT_BUF_SIZE*8]; /* worst case: bits read 1 by 1 */
1883      int Lens[BIT_BUF_SIZE*8];
1884      double t1;
1885    
1886    
1887      printf( "\n ===  test bitstream ===\n" );
1888      ieee_reseed(1);
1889      Crc = 0;
1890    
1891      t1 = gettime_usec();
1892      for(tst=0; tst<nb_tests; ++tst) {
1893            Bitstream bs;
1894            int m, m2, l, l2;
1895    
1896            for(l=0; l<BIT_BUF_SIZE; ++l)
1897                    Buf[l] = (uint8_t)ieee_rand(0,255);
1898    
1899            l = BIT_BUF_SIZE - ieee_rand(1,BIT_BUF_SIZE/10);
1900            BitstreamInit(&bs, (void*)(Buf+BIT_BUF_SIZE-l), l);
1901    
1902    
1903            BitstreamReset(&bs);
1904            for(l2=l*8, m=0; l2>0; m++) {
1905                    const int b = ieee_rand(1,32);
1906                    Lens[m] = b;
1907                    l2 -= b;
1908                    if (l2<0) break;
1909                    Extracted[m] = BitstreamShowBits(&bs, b);
1910                    BitstreamSkip(&bs, b);
1911    //              printf( "<= %d: %d 0x%x\n", m, b, Extracted[m]);
1912            }
1913    
1914            BitstreamReset(&bs);
1915            for(m2=0; m2<m; ++m2) {
1916                    const int b = Lens[m2];
1917                    const uint32_t v = BitstreamGetBits(&bs, b);
1918                    Crc |= (v!=Extracted[m2]);
1919    //              printf( "=> %d: %d 0x%x %c\n", m2, b, v, " *"[Crc]);
1920            }
1921      }
1922      t1 = (gettime_usec() - t1) / nb_tests;
1923      printf(" test_bits   %.3f usec   %s\n", t1, (Crc!=0)?"| ERROR": "" );
1924    }
1925    
1926    /*********************************************************************
1927   * main   * main
1928   *********************************************************************/   *********************************************************************/
1929    
# Line 1935  Line 1992 
1992          if (what==0 || what==11) test_log2bin();          if (what==0 || what==11) test_log2bin();
1993          if (what==0 || what==12) test_gcd();          if (what==0 || what==12) test_gcd();
1994          if (what==0 || what==13) test_compiler();          if (what==0 || what==13) test_compiler();
1995            if (what==0 || what==17) test_bits();
1996    
1997    
1998          if (what==7) {          if (what==7) {

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