/*****************************************************************************

 * vlc.c : vlc tables

 *****************************************************************************

 * Copyright (C) 2003-2025 x264 project

 *

 * Authors: Laurent Aimar <fenrir@via.ecp.fr>

 *          Fiona Glaser <fiona@x264.com>

 *          Henrik Gramner <henrik@gramner.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.

 *

 * This program is also available under a commercial proprietary license.

 * For more information, contact us at licensing@x264.com.

 *****************************************************************************/

#include "common.h"

vlc_large_t x264_level_token[7][LEVEL_TABLE_SIZE];

uint32_t x264_run_before[1<<16];

void x264_cavlc_init( x264_t *h )

{

    for( int i_suffix = 0; i_suffix < 7; i_suffix++ )

        for( int16_t level = -LEVEL_TABLE_SIZE/2; level < LEVEL_TABLE_SIZE/2; level++ )

        {

            int mask = level >> 15;

            int abs_level = (level^mask)-mask;

            int i_level_code = abs_level ? abs_level*2-mask-2 : 0;

            int i_next = i_suffix;

            vlc_large_t *vlc = &x264_level_token[i_suffix][level+LEVEL_TABLE_SIZE/2];

            if( ( i_level_code >> i_suffix ) < 14 )

            {

                vlc->i_size = (i_level_code >> i_suffix) + 1 + i_suffix;

                vlc->i_bits = (1<<i_suffix) + (i_level_code & ((1<<i_suffix)-1));

            }

            else if( i_suffix == 0 && i_level_code < 30 )

            {

                vlc->i_size = 19;

                vlc->i_bits = (1<<4) + (i_level_code - 14);

            }

            else if( i_suffix > 0 && ( i_level_code >> i_suffix ) == 14 )

            {

                vlc->i_size = 15 + i_suffix;

                vlc->i_bits = (1<<i_suffix) + (i_level_code & ((1<<i_suffix)-1));

            }

            else

            {

                i_level_code -= 15 << i_suffix;

                if( i_suffix == 0 )

                    i_level_code -= 15;

                vlc->i_size = 28;

                vlc->i_bits = (1<<12) + i_level_code;

            }

            if( i_next == 0 )

                i_next++;

            if( abs_level > (3 << (i_next-1)) && i_next < 6 )

                i_next++;

            vlc->i_next = i_next;

        }

    x264_run_before[0] = 0;

    x264_run_before[1] = 0;

    for( uint32_t i = 2; i < (1<<16); i++ )

    {

        x264_run_level_t runlevel;

        ALIGNED_ARRAY_16( dctcoef, dct, [16] );

        int size = 0;

        int bits = 0;

        for( int j = 0; j < 16; j++ )

            dct[j] = i&(1<<j);

        int total = h->quantf.coeff_level_run[DCT_LUMA_4x4]( dct, &runlevel );

        int zeros = runlevel.last + 1 - total;

        uint32_t mask = i << (x264_clz( i ) + 1);

        for( int j = 0; j < total-1 && zeros > 0; j++ )

        {

            int idx = X264_MIN(zeros, 7) - 1;

            int run = x264_clz( mask );

            int len = x264_run_before_init[idx][run].i_size;

            size += len;

            bits <<= len;

            bits |= x264_run_before_init[idx][run].i_bits;

            zeros -= run;

            mask <<= run + 1;

        }

        x264_run_before[i] = (bits << 5) + size;

    }

}

Unexecuted instantiation: x264_8_cavlc_init

Unexecuted instantiation: x264_10_cavlc_init