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PHP lookup_type函数代码示例

本文整理汇总了PHP中lookup_type函数的典型用法代码示例。如果您正苦于以下问题:PHP lookup_type函数的具体用法?PHP lookup_type怎么用?PHP lookup_type使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了lookup_type函数的9个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的PHP代码示例。

示例1: parseOlympus

function parseOlympus($block, &$result, $seek, $globalOffset)
{
    if ($result['Endien'] == "Intel") {
        $intel = 1;
    } else {
        $intel = 0;
    }
    $model = $result['IFD0']['Model'];
    $place = 8;
    //current place
    $offset = 8;
    //Get number of tags (2 bytes)
    $num = bin2hex(substr($block, $place, 2));
    $place += 2;
    if ($intel == 1) {
        $num = intel2Moto($num);
    }
    $result['SubIFD']['MakerNote']['MakerNoteNumTags'] = hexdec($num);
    //loop thru all tags  Each field is 12 bytes
    for ($i = 0; $i < hexdec($num); $i++) {
        //2 byte tag
        $tag = bin2hex(substr($block, $place, 2));
        $place += 2;
        if ($intel == 1) {
            $tag = intel2Moto($tag);
        }
        $tag_name = lookup_Olympus_tag($tag);
        //2 byte type
        $type = bin2hex(substr($block, $place, 2));
        $place += 2;
        if ($intel == 1) {
            $type = intel2Moto($type);
        }
        lookup_type($type, $size);
        //4 byte count of number of data units
        $count = bin2hex(substr($block, $place, 4));
        $place += 4;
        if ($intel == 1) {
            $count = intel2Moto($count);
        }
        $bytesofdata = $size * hexdec($count);
        //4 byte value of data or pointer to data
        $value = substr($block, $place, 4);
        $place += 4;
        if ($bytesofdata <= 4) {
            $data = $value;
        } else {
            $value = bin2hex($value);
            if ($intel == 1) {
                $value = intel2Moto($value);
            }
            $v = fseek($seek, $globalOffset + hexdec($value));
            //offsets are from TIFF header which is 12 bytes from the start of the file
            if ($v == 0) {
                $data = fread($seek, $bytesofdata);
            } else {
                if ($v == -1) {
                    $result['Errors'] = $result['Errors']++;
                }
            }
        }
        $formated_data = formatOlympusData($type, $tag, $intel, $data);
        if ($result['VerboseOutput'] == 1) {
            $result['SubIFD']['MakerNote'][$tag_name] = $formated_data;
            if ($type == "URATIONAL" || $type == "SRATIONAL" || $type == "USHORT" || $type == "SSHORT" || $type == "ULONG" || $type == "SLONG" || $type == "FLOAT" || $type == "DOUBLE") {
                $data = bin2hex($data);
                if ($intel == 1) {
                    $data = intel2Moto($data);
                }
            }
            $result['SubIFD']['MakerNote'][$tag_name . "_Verbose"]['RawData'] = $data;
            $result['SubIFD']['MakerNote'][$tag_name . "_Verbose"]['Type'] = $type;
            $result['SubIFD']['MakerNote'][$tag_name . "_Verbose"]['Bytes'] = $bytesofdata;
        } else {
            $result['SubIFD']['MakerNote'][$tag_name] = $formated_data;
        }
    }
}
开发者ID:BackupTheBerlios,项目名称:ydframework-svn,代码行数:78,代码来源:olympus.php

示例2: read_entry

function read_entry(&$result, $in, $seek, $intel, $ifd_name, $globalOffset)
{
    if (feof($in)) {
        // test to make sure we can still read.
        $result['Errors'] = $result['Errors'] + 1;
        return;
    }
    // 2 byte tag
    $tag = bin2hex(fread($in, 2));
    if ($intel == 1) {
        $tag = intel2Moto($tag);
    }
    $tag_name = lookup_tag($tag);
    // 2 byte datatype
    $type = bin2hex(fread($in, 2));
    if ($intel == 1) {
        $type = intel2Moto($type);
    }
    lookup_type($type, $size);
    if (strpos($tag_name, 'unknown:') !== false && strpos($type, 'error:') !== false) {
        // we have an error
        $result['Errors'] = $result['Errors'] + 1;
        return;
    }
    // 4 byte number of elements
    $count = bin2hex(fread($in, 4));
    if ($intel == 1) {
        $count = intel2Moto($count);
    }
    $bytesofdata = $size * hexdec($count);
    // 4 byte value or pointer to value if larger than 4 bytes
    $value = fread($in, 4);
    if ($bytesofdata <= 4) {
        // if datatype is 4 bytes or less, its the value
        $data = $value;
    } else {
        if ($bytesofdata < 100000) {
            // otherwise its a pointer to the value, so lets go get it
            $value = bin2hex($value);
            if ($intel == 1) {
                $value = intel2Moto($value);
            }
            $v = fseek($seek, $globalOffset + hexdec($value));
            // offsets are from TIFF header which is 12 bytes from the start of the file
            if ($v == 0) {
                $data = fread($seek, $bytesofdata);
            } else {
                if ($v == -1) {
                    $result['Errors'] = $result['Errors'] + 1;
                }
            }
        } else {
            // bytesofdata was too big, so the exif had an error
            $result['Errors'] = $result['Errors'] + 1;
            return;
        }
    }
    if ($tag_name == 'MakerNote') {
        // if its a maker tag, we need to parse this specially
        $make = $result['IFD0']['Make'];
        if ($result['VerboseOutput'] == 1) {
            $result[$ifd_name]['MakerNote']['RawData'] = $data;
        }
        if (preg_match('/NIKON/i', $make)) {
            require_once dirname(__FILE__) . '/makers/nikon.php';
            parseNikon($data, $result);
            $result[$ifd_name]['KnownMaker'] = 1;
        } else {
            if (preg_match('/OLYMPUS/i', $make)) {
                require_once dirname(__FILE__) . '/makers/olympus.php';
                parseOlympus($data, $result, $seek, $globalOffset);
                $result[$ifd_name]['KnownMaker'] = 1;
            } else {
                if (preg_match('/Canon/i', $make)) {
                    require_once dirname(__FILE__) . '/makers/canon.php';
                    parseCanon($data, $result, $seek, $globalOffset);
                    $result[$ifd_name]['KnownMaker'] = 1;
                } else {
                    if (preg_match('/FUJIFILM/i', $make)) {
                        require_once dirname(__FILE__) . '/makers/fujifilm.php';
                        parseFujifilm($data, $result);
                        $result[$ifd_name]['KnownMaker'] = 1;
                    } else {
                        if (preg_match('/SANYO/i', $make)) {
                            require_once dirname(__FILE__) . '/makers/sanyo.php';
                            parseSanyo($data, $result, $seek, $globalOffset);
                            $result[$ifd_name]['KnownMaker'] = 1;
                        } else {
                            if (preg_match('/Panasonic/i', $make)) {
                                require_once dirname(__FILE__) . '/makers/panasonic.php';
                                parsePanasonic($data, $result, $seek, $globalOffset);
                                $result[$ifd_name]['KnownMaker'] = 1;
                            } else {
                                $result[$ifd_name]['KnownMaker'] = 0;
                            }
                        }
                    }
                }
            }
        }
//.........这里部分代码省略.........
开发者ID:anqh,项目名称:core,代码行数:101,代码来源:exif.php

示例3: parseFujifilm

function parseFujifilm($block, &$result)
{
    //if($result['Endien']=="Intel") $intel=1;
    //else $intel=0;
    $intel = 1;
    $model = $result['IFD0']['Model'];
    $place = 8;
    //current place
    $offset = 8;
    $num = bin2hex(substr($block, $place, 4));
    $place += 4;
    if ($intel == 1) {
        $num = intel2Moto($num);
    }
    $result['SubIFD']['MakerNote']['Offset'] = hexdec($num);
    //Get number of tags (2 bytes)
    $num = bin2hex(substr($block, $place, 2));
    $place += 2;
    if ($intel == 1) {
        $num = intel2Moto($num);
    }
    $result['SubIFD']['MakerNote']['MakerNoteNumTags'] = hexdec($num);
    //loop thru all tags  Each field is 12 bytes
    for ($i = 0; $i < hexdec($num); $i++) {
        //2 byte tag
        $tag = bin2hex(substr($block, $place, 2));
        $place += 2;
        if ($intel == 1) {
            $tag = intel2Moto($tag);
        }
        $tag_name = lookup_Fujifilm_tag($tag);
        //2 byte type
        $type = bin2hex(substr($block, $place, 2));
        $place += 2;
        if ($intel == 1) {
            $type = intel2Moto($type);
        }
        lookup_type($type, $size);
        //4 byte count of number of data units
        $count = bin2hex(substr($block, $place, 4));
        $place += 4;
        if ($intel == 1) {
            $count = intel2Moto($count);
        }
        $bytesofdata = $size * hexdec($count);
        //4 byte value of data or pointer to data
        $value = substr($block, $place, 4);
        $place += 4;
        if ($bytesofdata <= 4) {
            $data = $value;
        } else {
            $value = bin2hex($value);
            if ($intel == 1) {
                $value = intel2Moto($value);
            }
            $data = substr($block, hexdec($value) - $offset, $bytesofdata * 2);
        }
        $formated_data = formatFujifilmData($type, $tag, $intel, $data);
        if ($result['VerboseOutput'] == 1) {
            $result['SubIFD']['MakerNote'][$tag_name] = $formated_data;
            if ($type == "URATIONAL" || $type == "SRATIONAL" || $type == "USHORT" || $type == "SSHORT" || $type == "ULONG" || $type == "SLONG" || $type == "FLOAT" || $type == "DOUBLE") {
                $data = bin2hex($data);
                if ($intel == 1) {
                    $data = intel2Moto($data);
                }
            }
            $result['SubIFD']['MakerNote'][$tag_name . "_Verbose"]['RawData'] = $data;
            $result['SubIFD']['MakerNote'][$tag_name . "_Verbose"]['Type'] = $type;
            $result['SubIFD']['MakerNote'][$tag_name . "_Verbose"]['Bytes'] = $bytesofdata;
        } else {
            $result['SubIFD']['MakerNote'][$tag_name] = $formated_data;
        }
    }
}
开发者ID:CatBerg-TestOrg,项目名称:coppermine_1.6.x,代码行数:74,代码来源:fujifilm.php

示例4: parseGPS

function parseGPS($block, &$result, $offset, $seek, $globalOffset)
{
    if ($result['Endien'] == "Intel") {
        $intel = 1;
    } else {
        $intel = 0;
    }
    $v = fseek($seek, $globalOffset + $offset);
    //offsets are from TIFF header which is 12 bytes from the start of the file
    if ($v == -1) {
        $result['Errors'] = $result['Errors']++;
    }
    $num = bin2hex(fread($seek, 2));
    if ($intel == 1) {
        $num = intel2Moto($num);
    }
    $num = hexdec($num);
    $result['GPS']['NumTags'] = $num;
    if ($num == 0) {
        return;
    }
    $block = fread($seek, $num * 12);
    $place = 0;
    //loop thru all tags  Each field is 12 bytes
    for ($i = 0; $i < $num; $i++) {
        //2 byte tag
        $tag = bin2hex(substr($block, $place, 2));
        $place += 2;
        if ($intel == 1) {
            $tag = intel2Moto($tag);
        }
        $tag_name = lookup_GPS_tag($tag);
        //2 byte datatype
        $type = bin2hex(substr($block, $place, 2));
        $place += 2;
        if ($intel == 1) {
            $type = intel2Moto($type);
        }
        lookup_type($type, $size);
        //4 byte number of elements
        $count = bin2hex(substr($block, $place, 4));
        $place += 4;
        if ($intel == 1) {
            $count = intel2Moto($count);
        }
        $bytesofdata = $size * hexdec($count);
        //4 byte value or pointer to value if larger than 4 bytes
        $value = substr($block, $place, 4);
        $place += 4;
        if ($bytesofdata <= 4) {
            $data = $value;
        } else {
            if (strpos('unknown', $tag_name) !== false || $bytesofdata > 1024) {
                $result['Errors'] = $result['Errors']++;
                $data = '';
                $type = 'ASCII';
            } else {
                $value = bin2hex($value);
                if ($intel == 1) {
                    $value = intel2Moto($value);
                }
                $v = fseek($seek, $globalOffset + hexdec($value));
                //offsets are from TIFF header which is 12 bytes from the start of the file
                if ($v == 0) {
                    $data = fread($seek, $bytesofdata);
                } else {
                    $result['Errors'] = $result['Errors']++;
                    $data = '';
                    $type = 'ASCII';
                }
            }
        }
        if ($result['VerboseOutput'] == 1) {
            $result['GPS'][$tag_name] = formatGPSData($type, $tag, $intel, $data);
            $result['GPS'][$tag_name . "_Verbose"]['RawData'] = bin2hex($data);
            $result['GPS'][$tag_name . "_Verbose"]['Type'] = $type;
            $result['GPS'][$tag_name . "_Verbose"]['Bytes'] = $bytesofdata;
        } else {
            $result['GPS'][$tag_name] = formatGPSData($type, $tag, $intel, $data);
        }
    }
}
开发者ID:CatBerg-TestOrg,项目名称:coppermine_1.6.x,代码行数:82,代码来源:gps.php

示例5: parseCanon

function parseCanon($block, &$result, $seek, $globalOffset)
{
    $place = 0;
    //current place
    if ($result['Endien'] == "Intel") {
        $intel = 1;
    } else {
        $intel = 0;
    }
    $model = $result['IFD0']['Model'];
    //Get number of tags (2 bytes)
    $num = bin2hex(substr($block, $place, 2));
    $place += 2;
    if ($intel == 1) {
        $num = intel2Moto($num);
    }
    $result['SubIFD']['MakerNote']['MakerNoteNumTags'] = hexdec($num);
    //loop thru all tags  Each field is 12 bytes
    for ($i = 0; $i < hexdec($num); $i++) {
        //2 byte tag
        $tag = bin2hex(substr($block, $place, 2));
        $place += 2;
        if ($intel == 1) {
            $tag = intel2Moto($tag);
        }
        $tag_name = lookup_Canon_tag($tag);
        //2 byte type
        $type = bin2hex(substr($block, $place, 2));
        $place += 2;
        if ($intel == 1) {
            $type = intel2Moto($type);
        }
        lookup_type($type, $size);
        //4 byte count of number of data units
        $count = bin2hex(substr($block, $place, 4));
        $place += 4;
        if ($intel == 1) {
            $count = intel2Moto($count);
        }
        $bytesofdata = $size * hexdec($count);
        if ($bytesofdata <= 0) {
            return;
            //if this value is 0 or less then we have read all the tags we can
        }
        //4 byte value of data or pointer to data
        $value = substr($block, $place, 4);
        $place += 4;
        if ($bytesofdata <= 4) {
            $data = $value;
        } else {
            $value = bin2hex($value);
            if ($intel == 1) {
                $value = intel2Moto($value);
            }
            $v = fseek($seek, $globalOffset + hexdec($value));
            //offsets are from TIFF header which is 12 bytes from the start of the file
            if (isset($GLOBALS['exiferFileSize'])) {
                $exiferFileSize = $GLOBALS['exiferFileSize'];
            } else {
                $exiferFileSize = 0;
            }
            if ($v == 0 && $bytesofdata < $exiferFileSize) {
                $data = fread($seek, $bytesofdata);
            } else {
                if ($v == -1) {
                    $result['Errors'] = $result['Errors']++;
                    $data = '';
                } else {
                    $data = '';
                }
            }
        }
        $result['SubIFD']['MakerNote'][$tag_name] = '';
        // insure the index exists
        $formated_data = formatCanonData($type, $tag, $intel, $data, $result, $result['SubIFD']['MakerNote'][$tag_name]);
        if ($result['VerboseOutput'] == 1) {
            //$result['SubIFD']['MakerNote'][$tag_name] = $formated_data;
            if ($type == "URATIONAL" || $type == "SRATIONAL" || $type == "USHORT" || $type == "SSHORT" || $type == "ULONG" || $type == "SLONG" || $type == "FLOAT" || $type == "DOUBLE") {
                $data = bin2hex($data);
                if ($intel == 1) {
                    $data = intel2Moto($data);
                }
            }
            $result['SubIFD']['MakerNote'][$tag_name . "_Verbose"]['RawData'] = $data;
            $result['SubIFD']['MakerNote'][$tag_name . "_Verbose"]['Type'] = $type;
            $result['SubIFD']['MakerNote'][$tag_name . "_Verbose"]['Bytes'] = $bytesofdata;
        } else {
            //$result['SubIFD']['MakerNote'][$tag_name] = $formated_data;
        }
    }
}
开发者ID:anqh,项目名称:core,代码行数:91,代码来源:canon.php

示例6: parseNikon

function parseNikon($block, &$result)
{
    if ($result['Endien'] == "Intel") {
        $intel = 1;
    } else {
        $intel = 0;
    }
    $model = $result['IFD0']['Model'];
    //these 6 models start with "Nikon".  Other models dont.
    if ($model == "E700" || $model == "E800" || $model == "E900" || $model == "E900S" || $model == "E910" || $model == "E950") {
        $place = 8;
        //current place
        $model = 0;
        //Get number of tags (2 bytes)
        $num = bin2hex(substr($block, $place, 2));
        $place += 2;
        if ($intel == 1) {
            $num = intel2Moto($num);
        }
        $result['SubIFD']['MakerNote']['MakerNoteNumTags'] = hexdec($num);
        //loop thru all tags  Each field is 12 bytes
        for ($i = 0; $i < hexdec($num); $i++) {
            //2 byte tag
            $tag = bin2hex(substr($block, $place, 2));
            $place += 2;
            if ($intel == 1) {
                $tag = intel2Moto($tag);
            }
            $tag_name = lookup_Nikon_tag($tag, $model);
            //2 byte type
            $type = bin2hex(substr($block, $place, 2));
            $place += 2;
            if ($intel == 1) {
                $type = intel2Moto($type);
            }
            lookup_type($type, $size);
            //4 byte count of number of data units
            $count = bin2hex(substr($block, $place, 4));
            $place += 4;
            if ($intel == 1) {
                $count = intel2Moto($count);
            }
            $bytesofdata = $size * hexdec($count);
            //4 byte value of data or pointer to data
            $value = substr($block, $place, 4);
            $place += 4;
            //if tag is 0002 then its the ASCII value which we know is at 140 so calc offset
            //THIS HACK ONLY WORKS WITH EARLY NIKON MODELS
            if ($tag == "0002") {
                $offset = hexdec($value) - 140;
            }
            if ($bytesofdata <= 4) {
                $data = $value;
            } else {
                $value = bin2hex($value);
                if ($intel == 1) {
                    $value = intel2Moto($value);
                }
                $data = substr($block, hexdec($value) - $offset, $bytesofdata * 2);
            }
            $formated_data = formatNikonData($type, $tag, $intel, $model, $data);
            if ($result['VerboseOutput'] == 1) {
                $result['SubIFD']['MakerNote'][$tag_name] = $formated_data;
                $result['SubIFD']['MakerNote'][$tag_name . "_Verbose"]['RawData'] = $data;
                $result['SubIFD']['MakerNote'][$tag_name . "_Verbose"]['Type'] = $type;
                $result['SubIFD']['MakerNote'][$tag_name . "_Verbose"]['Bytes'] = $bytesofdata;
            } else {
                $result['SubIFD']['MakerNote'][$tag_name] = $formated_data;
            }
        }
    } else {
        $place = 0;
        //current place
        $model = 1;
        $nikon = substr($block, $place, 8);
        $place += 8;
        $endien = substr($block, $place, 4);
        $place += 4;
        //2 bytes of 0x002a
        $tag = bin2hex(substr($block, $place, 2));
        $place += 2;
        //Then 4 bytes of offset to IFD0 (usually 8 which includes all 8 bytes of TIFF header)
        $offset = bin2hex(substr($block, $place, 4));
        $place += 4;
        if ($intel == 1) {
            $offset = intel2Moto($offset);
        }
        if (hexdec($offset) > 8) {
            $place += $offset - 8;
        }
        //Get number of tags (2 bytes)
        $num = bin2hex(substr($block, $place, 2));
        $place += 2;
        if ($intel == 1) {
            $num = intel2Moto($num);
        }
        //loop thru all tags  Each field is 12 bytes
        for ($i = 0; $i < hexdec($num); $i++) {
            //2 byte tag
            $tag = bin2hex(substr($block, $place, 2));
//.........这里部分代码省略.........
开发者ID:stephenjschaefer,项目名称:APlusPhotography,代码行数:101,代码来源:nikon.php

示例7: parseOlympus

function parseOlympus($block, &$result, $seek, $globalOffset)
{
    if ($result['Endien'] == "Intel") {
        $intel = 1;
    } else {
        $intel = 0;
    }
    $model = $result['IFD0']['Model'];
    // New header for new DSLRs - Check for it because the
    // number of bytes that count the IFD fields differ in each case.
    // Fixed by Zenphoto 2/24/08
    $new = false;
    if (substr($block, 0, 8) == "OLYMPUS") {
        $new = true;
    } else {
        if (substr($block, 0, 7) == "OLYMP" || substr($block, 0, 7) == "OLYMP") {
            $new = false;
        } else {
            // Header does not match known Olympus headers.
            // This is not a valid OLYMPUS Makernote.
            return false;
        }
    }
    // Offset of IFD entry after Olympus header.
    $place = 8;
    $offset = 8;
    // Get number of tags (1 or 2 bytes, depending on New or Old makernote)
    $countfieldbits = $new ? 1 : 2;
    // New makernote repeats 1-byte value twice, so increment $place by 2 in either case.
    $num = bin2hex(substr($block, $place, $countfieldbits));
    $place += 2;
    if ($intel == 1) {
        $num = intel2Moto($num);
    }
    $ntags = hexdec($num);
    $result['SubIFD']['MakerNote']['MakerNoteNumTags'] = $ntags;
    //loop thru all tags  Each field is 12 bytes
    for ($i = 0; $i < $ntags; $i++) {
        //2 byte tag
        $tag = bin2hex(substr($block, $place, 2));
        $place += 2;
        if ($intel == 1) {
            $tag = intel2Moto($tag);
        }
        $tag_name = lookup_Olympus_tag($tag);
        //2 byte type
        $type = bin2hex(substr($block, $place, 2));
        $place += 2;
        if ($intel == 1) {
            $type = intel2Moto($type);
        }
        lookup_type($type, $size);
        //4 byte count of number of data units
        $count = bin2hex(substr($block, $place, 4));
        $place += 4;
        if ($intel == 1) {
            $count = intel2Moto($count);
        }
        $bytesofdata = $size * hexdec($count);
        //4 byte value of data or pointer to data
        $value = substr($block, $place, 4);
        $place += 4;
        if ($bytesofdata <= 4) {
            $data = $value;
        } else {
            $value = bin2hex($value);
            if ($intel == 1) {
                $value = intel2Moto($value);
            }
            $v = fseek($seek, $globalOffset + hexdec($value));
            //offsets are from TIFF header which is 12 bytes from the start of the file
            if (isset($GLOBALS['exiferFileSize']) && $v == 0 && $bytesofdata < $GLOBALS['exiferFileSize']) {
                $data = fread($seek, $bytesofdata);
            } else {
                $result['Errors'] = $result['Errors']++;
                $data = '';
            }
        }
        $formated_data = formatOlympusData($type, $tag, $intel, $data);
        if ($result['VerboseOutput'] == 1) {
            $result['SubIFD']['MakerNote'][$tag_name] = $formated_data;
            if ($type == "URATIONAL" || $type == "SRATIONAL" || $type == "USHORT" || $type == "SSHORT" || $type == "ULONG" || $type == "SLONG" || $type == "FLOAT" || $type == "DOUBLE") {
                $data = bin2hex($data);
                if ($intel == 1) {
                    $data = intel2Moto($data);
                }
            }
            $result['SubIFD']['MakerNote'][$tag_name . "_Verbose"]['RawData'] = $data;
            $result['SubIFD']['MakerNote'][$tag_name . "_Verbose"]['Type'] = $type;
            $result['SubIFD']['MakerNote'][$tag_name . "_Verbose"]['Bytes'] = $bytesofdata;
        } else {
            $result['SubIFD']['MakerNote'][$tag_name] = $formated_data;
        }
    }
}
开发者ID:brocki,项目名称:gallery3,代码行数:95,代码来源:olympus.php

示例8: read_entry

function read_entry(&$result, $in, $seek, $intel, $ifd_name, $globalOffset)
{
    if (feof($in)) {
        //test to make sure we can still read.
        $result['Errors'] = $result['Errors'] + 1;
        return;
    }
    //2 byte tag
    $tag = bin2hex(fread($in, 2));
    if ($intel == 1) {
        $tag = intel2Moto($tag);
    }
    $tag_name = lookup_tag($tag);
    //2 byte datatype
    $type = bin2hex(fread($in, 2));
    if ($intel == 1) {
        $type = intel2Moto($type);
    }
    lookup_type($type, $size);
    //4 byte number of elements
    $count = bin2hex(fread($in, 4));
    if ($intel == 1) {
        $count = intel2Moto($count);
    }
    $bytesofdata = $size * hexdec($count);
    //4 byte value or pointer to value if larger than 4 bytes
    $value = fread($in, 4);
    if ($bytesofdata <= 4) {
        //if datatype is 4 bytes or less, its the value
        $data = $value;
    } else {
        if ($bytesofdata < 100000) {
            //otherwise its a pointer to the value, so lets go get it
            $value = bin2hex($value);
            if ($intel == 1) {
                $value = intel2Moto($value);
            }
            $v = fseek($seek, $globalOffset + hexdec($value));
            //offsets are from TIFF header which is 12 bytes from the start of the file
            if ($v == 0) {
                $data = fread($seek, $bytesofdata);
            } else {
                if ($v == -1) {
                    $result['Errors'] = $result['Errors'] + 1;
                }
            }
        } else {
            //bytesofdata was too big, so the exif had an error
            $result['Errors'] = $result['Errors'] + 1;
            return;
        }
    }
    if ($tag_name == "MakerNote") {
        //if its a maker tag, we need to parse this specially
        $make = $result['IFD0']['Make'];
        if ($result['VerboseOutput'] == 1) {
            $result[$ifd_name]['MakerNote']['RawData'] = $data;
        }
        if (eregi("NIKON", $make)) {
            require_once 'makers/nikon.php';
            parseNikon($data, $result);
            $result[$ifd_name]['KnownMaker'] = 1;
        } else {
            if (eregi("OLYMPUS", $make)) {
                require_once 'makers/olympus.php';
                parseOlympus($data, $result, $seek, $globalOffset);
                $result[$ifd_name]['KnownMaker'] = 1;
            } else {
                if (eregi("Canon", $make)) {
                    require_once 'makers/canon.php';
                    parseCanon($data, $result, $seek, $globalOffset);
                    $result[$ifd_name]['KnownMaker'] = 1;
                } else {
                    if (eregi("FUJIFILM", $make)) {
                        require_once 'makers/fujifilm.php';
                        parseFujifilm($data, $result);
                        $result[$ifd_name]['KnownMaker'] = 1;
                    } else {
                        if (eregi("SANYO", $make)) {
                            require_once 'makers/sanyo.php';
                            parseSanyo($data, $result, $seek, $globalOffset);
                            $result[$ifd_name]['KnownMaker'] = 1;
                        } else {
                            $result[$ifd_name]['KnownMaker'] = 0;
                        }
                    }
                }
            }
        }
    } else {
        if ($tag_name == "GPSInfoOffset") {
            require_once 'makers/gps.php';
            $formated_data = formatData($type, $tag, $intel, $data);
            $result[$ifd_name]['GPSInfo'] = $formated_data;
            parseGPS($data, $result, $formated_data, $seek, $globalOffset);
        } else {
            //Format the data depending on the type and tag
            $formated_data = formatData($type, $tag, $intel, $data);
            $result[$ifd_name][$tag_name] = $formated_data;
            if ($result['VerboseOutput'] == 1) {
//.........这里部分代码省略.........
开发者ID:alanhaggai,项目名称:plogger,代码行数:101,代码来源:exif.php

示例9: parseCanon

function parseCanon($block, &$result, $seek, $globalOffset)
{
    global $exiferFileSize;
    //Manuel: this makes canon maker notes work
    $place = 0;
    //current place
    if ($result['Endien'] == "Intel") {
        $intel = 1;
    } else {
        $intel = 0;
    }
    /* Manuel: start determine a possible makernote offset given in the makernote trailer */
    $offsetDelta = 0;
    //currentOffset of MakerNote starting after TIFF header
    $blockLenBytes = strlen(bin2hex($block)) / 2;
    $currentOffset = ftell($seek) - $blockLenBytes - $globalOffset;
    //get potential trailer 8bytes from end of MakerNote
    //first 4 bytes are trailer signature corresponding to TIFF header
    $trailerId = bin2hex(substr($block, -8, 4));
    if ($intel) {
        $tiffHeader = bin2hex('II');
        //Intel
        // 2 bytes of 0x002a
        $tiffHeader .= intel2Moto('002a');
    } else {
        $tiffHeader = bin2hex('MM');
        //Motorola
        $tiffHeader .= '002a';
    }
    if ($trailerId == $tiffHeader) {
        //is it the trailer?
        //next 4 bytes contain offset value
        $mnOffset = bin2hex(substr($block, -4));
        if ($intel == 1) {
            $mnOffset = intel2Moto($mnOffset);
        }
        //calculate the delta
        $offsetDelta = $currentOffset - hexdec($mnOffset);
    }
    /* Manuel: end determine makernote offset */
    $model = $result['IFD0']['Model'];
    //Get number of tags (2 bytes)
    $num = bin2hex(substr($block, $place, 2));
    $place += 2;
    if ($intel == 1) {
        $num = intel2Moto($num);
    }
    $result['SubIFD']['MakerNote']['MakerNoteNumTags'] = hexdec($num);
    //loop thru all tags  Each field is 12 bytes
    for ($i = 0; $i < hexdec($num); $i++) {
        //2 byte tag
        $tag = bin2hex(substr($block, $place, 2));
        $place += 2;
        if ($intel == 1) {
            $tag = intel2Moto($tag);
        }
        $tag_name = lookup_Canon_tag($tag);
        //2 byte type
        $type = bin2hex(substr($block, $place, 2));
        $place += 2;
        if ($intel == 1) {
            $type = intel2Moto($type);
        }
        lookup_type($type, $size);
        //4 byte count of number of data units
        $count = bin2hex(substr($block, $place, 4));
        $place += 4;
        if ($intel == 1) {
            $count = intel2Moto($count);
        }
        $bytesofdata = $size * hexdec($count);
        if ($bytesofdata <= 0) {
            return;
            //if this value is 0 or less then we have read all the tags we can
        }
        //4 byte value of data or pointer to data
        $value = substr($block, $place, 4);
        $place += 4;
        if ($bytesofdata <= 4) {
            $data = $value;
        } else {
            $value = bin2hex($value);
            if ($intel == 1) {
                $value = intel2Moto($value);
            }
            //offsets are from TIFF header which is 12 bytes from the start of the file
            //Manuel: also account for $offsetDelta given by the makernote offset in TIFF trailer
            $v = fseek($seek, $globalOffset + hexdec($value) + $offsetDelta);
            if ($v == 0 && $bytesofdata < $exiferFileSize) {
                //Manuel: this makes canon maker notes work
                $data = fread($seek, $bytesofdata);
            } else {
                if ($v == -1) {
                    $result['Errors'] = $result['Errors']++;
                }
            }
        }
        $formated_data = formatCanonData($type, $tag, $intel, $data, $result, $result['SubIFD']['MakerNote'][$tag_name]);
        if ($result['VerboseOutput'] == 1) {
            //$result['SubIFD']['MakerNote'][$tag_name] = $formated_data;
//.........这里部分代码省略.........
开发者ID:alx,项目名称:rosaveloso,代码行数:101,代码来源:canon.php


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