C++ (Cpp) init_ac_vlc Examples

Example #1

File: intrax8.c Project: 248668342/ffmpeg-windows

static void x8_vlc_init(){
    int i;

#define  init_ac_vlc(dst,src) \
       init_vlc(&dst, \
              AC_VLC_BITS,77, \
              &src[1],4,2, \
              &src[0],4,2, \
              1)
//set ac tables
    for(i=0;i<8;i++){
        init_ac_vlc( j_ac_vlc[0][0][i], x8_ac0_highquant_table[i][0] );
        init_ac_vlc( j_ac_vlc[0][1][i], x8_ac1_highquant_table[i][0] );
        init_ac_vlc( j_ac_vlc[1][0][i], x8_ac0_lowquant_table [i][0] );
        init_ac_vlc( j_ac_vlc[1][1][i], x8_ac1_lowquant_table [i][0] );
    }
#undef init_ac_vlc

//set dc tables
#define init_dc_vlc(dst,src) \
        init_vlc(&dst, \
        DC_VLC_BITS,34, \
        &src[1],4,2, \
        &src[0],4,2, \
        1);
    for(i=0;i<8;i++){
        init_dc_vlc( j_dc_vlc[0][i], x8_dc_highquant_table[i][0]);
        init_dc_vlc( j_dc_vlc[1][i], x8_dc_lowquant_table [i][0]);
    }
#undef init_dc_vlc

//set orient tables
#define init_or_vlc(dst,src) \
    init_vlc(&dst, \
    OR_VLC_BITS,12, \
    &src[1],4,2, \
    &src[0],4,2, \
    1);
    for(i=0;i<2;i++){
        init_or_vlc( j_orient_vlc[0][i], x8_orient_highquant_table[i][0]);
    }
    for(i=0;i<4;i++){
        init_or_vlc( j_orient_vlc[1][i], x8_orient_lowquant_table [i][0])
    }
}

Example #2

File: intrax8.c Project: coffeez/libav

static av_cold void x8_vlc_init(void){
    int i;
    int offset = 0;
    int sizeidx = 0;
    static const uint16_t sizes[8*4 + 8*2 + 2 + 4] = {
        576, 548, 582, 618, 546, 616, 560, 642,
        584, 582, 704, 664, 512, 544, 656, 640,
        512, 648, 582, 566, 532, 614, 596, 648,
        586, 552, 584, 590, 544, 578, 584, 624,

        528, 528, 526, 528, 536, 528, 526, 544,
        544, 512, 512, 528, 528, 544, 512, 544,

        128, 128, 128, 128, 128, 128};

    static VLC_TYPE table[28150][2];

#define  init_ac_vlc(dst,src) \
    dst.table = &table[offset]; \
    dst.table_allocated = sizes[sizeidx]; \
    offset += sizes[sizeidx++]; \
       init_vlc(&dst, \
              AC_VLC_BITS,77, \
              &src[1],4,2, \
              &src[0],4,2, \
              INIT_VLC_USE_NEW_STATIC)
//set ac tables
    for(i=0;i<8;i++){
        init_ac_vlc( j_ac_vlc[0][0][i], x8_ac0_highquant_table[i][0] );
        init_ac_vlc( j_ac_vlc[0][1][i], x8_ac1_highquant_table[i][0] );
        init_ac_vlc( j_ac_vlc[1][0][i], x8_ac0_lowquant_table [i][0] );
        init_ac_vlc( j_ac_vlc[1][1][i], x8_ac1_lowquant_table [i][0] );
    }
#undef init_ac_vlc

//set dc tables
#define init_dc_vlc(dst,src) \
    dst.table = &table[offset]; \
    dst.table_allocated = sizes[sizeidx]; \
    offset += sizes[sizeidx++]; \
        init_vlc(&dst, \
        DC_VLC_BITS,34, \
        &src[1],4,2, \
        &src[0],4,2, \
        INIT_VLC_USE_NEW_STATIC);
    for(i=0;i<8;i++){
        init_dc_vlc( j_dc_vlc[0][i], x8_dc_highquant_table[i][0]);
        init_dc_vlc( j_dc_vlc[1][i], x8_dc_lowquant_table [i][0]);
    }
#undef init_dc_vlc

//set orient tables
#define init_or_vlc(dst,src) \
    dst.table = &table[offset]; \
    dst.table_allocated = sizes[sizeidx]; \
    offset += sizes[sizeidx++]; \
    init_vlc(&dst, \
    OR_VLC_BITS,12, \
    &src[1],4,2, \
    &src[0],4,2, \
    INIT_VLC_USE_NEW_STATIC);
    for(i=0;i<2;i++){
        init_or_vlc( j_orient_vlc[0][i], x8_orient_highquant_table[i][0]);
    }
    for(i=0;i<4;i++){
        init_or_vlc( j_orient_vlc[1][i], x8_orient_lowquant_table [i][0])
    }
    if (offset != sizeof(table)/sizeof(VLC_TYPE)/2)
        av_log(NULL, AV_LOG_ERROR, "table size %i does not match needed %i\n", (int)(sizeof(table)/sizeof(VLC_TYPE)/2), offset);
}