PHP PelJpeg::getExif方法代码示例

 /**
  * Loads the EXIF data from the given file and returns it
  *
  * @param $filename Filename of the file to load the exif data from
  * @return The EXIF data as array
  */
 public function load($filename)
 {
     if (!file_exists($filename)) {
         throw new Exception('File "' . $filename . '" not found!');
     }
     $jpeg = new PelJpeg($filename);
     $exif = array(PelIfd::IFD0 => $jpeg->getExif()->getTiff()->getIfd(), PelIfd::IFD1 => $jpeg->getExif()->getTiff()->getIfd()->getNextIfd(), PelIfd::EXIF => $jpeg->getExif()->getTiff()->getIfd()->getSubIfd(PelIfd::EXIF), PelIfd::GPS => $jpeg->getExif()->getTiff()->getIfd()->getSubIfd(PelIfd::GPS));
     $result = array('id' => $this->getDescriptionPart($exif, 'id'), 'Model' => str_replace('\\0', '', $this->getValue($exif[PelIfd::IFD0]->getEntry(PelTag::MODEL))), 'Flash' => $this->getValue($exif[PelIfd::EXIF]->getEntry(PelTag::FLASH)), 'LensID' => $this->parseXmpData($filename, 'aux:LensID') != '' ? $this->parseXmpData($filename, 'aux:LensID') : '0', 'Lens' => $this->parseXmpData($filename, 'aux:Lens'), 'ExposureProgram' => $this->getValue($exif[PelIfd::EXIF]->getEntry(PelTag::EXPOSURE_PROGRAM)), 'MeteringMode' => $this->getValue($exif[PelIfd::EXIF]->getEntry(PelTag::METERING_MODE)), 'Title' => $this->getDescriptionPart($exif, 'Title'), 'Description' => $this->getDescriptionPart($exif, 'Description'), 'Category' => $this->getDescriptionPart($exif, 'Category'), 'Tags' => explode(',', $this->getDescriptionPart($exif, 'Tags')), 'DateCreated' => date('Y-m-d H:i:s', $this->getValue($exif[PelIfd::EXIF]->getEntry(PelTag::DATE_TIME_ORIGINAL)) != "" ? $this->getValue($exif[PelIfd::EXIF]->getEntry(PelTag::DATE_TIME_ORIGINAL)) : $this->getValue($exif[PelIfd::EXIF]->getEntry(PelTag::DATE_TIME_DIGITIZED))), 'FocalLength' => $this->getFocalLength($exif), 'FNumber' => $this->getFNumber($exif), 'ExposureTime' => $this->getExposureTime($exif), 'ISO' => $this->getValue($exif[PelIfd::EXIF]->getEntry(PelTag::ISO_SPEED_RATINGS)), 'GpsLatitudeRef' => isset($exif[PelIfd::GPS]) ? $this->getValue($exif[PelIfd::GPS]->getEntry(PelTag::GPS_LATITUDE_REF)) : '', 'GpsLatitude' => isset($exif[PelIfd::GPS]) ? $this->gpsExtract($exif[PelIfd::GPS]->getEntry(PelTag::GPS_LATITUDE)->getValue()) : '', 'GpsLongitudeRef' => isset($exif[PelIfd::GPS]) ? $this->getValue($exif[PelIfd::GPS]->getEntry(PelTag::GPS_LONGITUDE_REF)) : '', 'GpsLongitude' => isset($exif[PelIfd::GPS]) ? $this->gpsExtract($exif[PelIfd::GPS]->getEntry(PelTag::GPS_LONGITUDE)->getValue()) : '');
     return $result;
 }

 function testThisDoesNotWorkAsExpected()
 {
     $subject = "Превед, медвед!";
     $data = new PelDataWindow(file_get_contents($this->file));
     if (PelJpeg::isValid($data)) {
         $jpeg = new PelJpeg();
         $jpeg->load($data);
         $exif = $jpeg->getExif();
         if (null == $exif) {
             $exif = new PelExif();
             $jpeg->setExif($exif);
             $tiff = new PelTiff();
             $exif->setTiff($tiff);
         }
         $tiff = $exif->getTiff();
         $ifd0 = $tiff->getIfd();
         if (null == $ifd0) {
             $ifd0 = new PelIfd(PelIfd::IFD0);
             $tiff->setIfd($ifd0);
         }
     }
     $ifd0->addEntry(new PelEntryWindowsString(PelTag::XP_SUBJECT, $subject));
     file_put_contents($this->file, $jpeg->getBytes());
     $jpeg = new PelJpeg($this->file);
     $exif = $jpeg->getExif();
     $tiff = $exif->getTiff();
     $ifd0 = $tiff->getIfd();
     $written_subject = $ifd0->getEntry(PelTag::XP_SUBJECT);
     $this->assertEqual($subject, $written_subject->getValue());
 }

 function testRead()
 {
     Pel::clearExceptions();
     Pel::setStrictParsing(false);
     $jpeg = new PelJpeg(dirname(__FILE__) . '/no-exif.jpg');
     $exif = $jpeg->getExif();
     $this->assertNull($exif);
     $this->assertTrue(count(Pel::getExceptions()) == 0);
 }

function addGPSdata($infile, $outfile, $GPS_lat, $GPS_lon, $GPS_alt)
{
    try {
        $image = new PelJpeg($infile);
    } catch (Exception $exc) {
        return -1;
    }
    if ($image instanceof PelJpeg) {
        if ($image->isValid(new PelDataWindow($image->getBytes()))) {
            $exif = $image->getExif();
            if ($exif == null) {
                $exif = new PelExif();
                $image->setExif($exif);
                $exif->setTiff(new PelTiff());
            }
            $tiff = $exif->getTiff();
            $ifd0 = $tiff->getIfd();
            if ($ifd0 == null) {
                $ifd0 = new PelIFD(PelIfd::IFD0);
                $tiff->setIfd($ifd0);
            }
            /* Tags erzeugen */
            $subifd = new PelIfd(PelIfd::GPS);
            $GPS_latref = $GPS_lat < 0 ? "S" : "N";
            $GPS_lonref = $GPS_lon < 0 ? "W" : "E";
            $GPS_altref = $GPS_alt < 0 ? 1 : 0;
            list($degrees, $minutes, $milliseconds) = dec2dms(abs($GPS_lat));
            $gpslat = new PelEntryRational(PelTag::GPS_LATITUDE, array($degrees, 1), array($minutes, 1), array($milliseconds, 1000));
            list($degrees, $minutes, $milliseconds) = dec2dms(abs($GPS_lon));
            $gpslon = new PelEntryRational(PelTag::GPS_LONGITUDE, array($degrees, 1), array($minutes, 1), array($milliseconds, 1000));
            echo $GPS_alt * 1000;
            $gpsalt = new PelEntryRational(PelTag::GPS_ALTITUDE, array(abs($GPS_alt * 1000), 1000));
            $gpslatref = new PelEntryAscii(PelTag::GPS_LATITUDE_REF, $GPS_latref);
            $gpslonref = new PelEntryAscii(PelTag::GPS_LONGITUDE_REF, $GPS_lonref);
            $gpsaltref = new PelEntryByte(PelTag::GPS_ALTITUDE_REF, $GPS_altref);
            $gpsversion = new PelEntryByte(PelTag::GPS_VERSION_ID, 2, 2, 0, 0);
            /* Daten eintragen.*/
            $subifd->addEntry($gpsversion);
            $subifd->addEntry($gpslat);
            $subifd->addEntry($gpslon);
            $subifd->addEntry($gpsalt);
            $subifd->addEntry($gpslatref);
            $subifd->addEntry($gpslonref);
            $subifd->addEntry($gpsaltref);
            $ifd0->addSubIfd($subifd);
            file_put_contents($outfile, $image->getBytes());
            return 0;
        }
    }
    return -1;
}

 function testThisDoesNotWorkAsExpected()
 {
     $tmpfile = dirname(__FILE__) . '/images/bug1730993_tmp.jpg';
     $bigfile = dirname(__FILE__) . '/images/bug1730993_large.jpg';
     try {
         $jpeg = new PelJpeg($tmpfile);
         // the error occurs here
         $exif = $jpeg->getExif();
         if ($exif != null) {
             $jpeg1 = new PelJpeg($bigfile);
             $jpeg1->setExif($exif);
             file_put_contents($bigfile, $jpeg1->getBytes());
         }
     } catch (Exception $e) {
         $this->fail('Test should not throw an exception');
     }
 }

 function testThisDoesNotWorkAsExpected()
 {
     $scale = 0.75;
     $input_jpeg = new PelJpeg($this->file);
     $original = ImageCreateFromString($input_jpeg->getBytes());
     $original_w = ImagesX($original);
     $original_h = ImagesY($original);
     $scaled_w = $original_w * $scale;
     $scaled_h = $original_h * $scale;
     $scaled = ImageCreateTrueColor($scaled_w, $scaled_h);
     ImageCopyResampled($scaled, $original, 0, 0, 0, 0, $scaled_w, $scaled_h, $original_w, $original_h);
     $output_jpeg = new PelJpeg($scaled);
     $exif = $input_jpeg->getExif();
     if ($exif != null) {
         $output_jpeg->setExif($exif);
     }
     file_put_contents($this->file, $output_jpeg->getBytes());
     $jpeg = new PelJpeg($this->file);
     $exifin = $jpeg->getExif();
     $this->assertEqual($exif, $exifin);
 }

 function testWriteRead()
 {
     Pel::setStrictParsing(true);
     $ifd = new PelIfd(PelIfd::IFD0);
     $this->assertTrue($ifd->isLastIfd());
     foreach ($this->entries as $entry) {
         $ifd->addEntry($entry);
     }
     $tiff = new PelTiff();
     $this->assertNull($tiff->getIfd());
     $tiff->setIfd($ifd);
     $this->assertNotNull($tiff->getIfd());
     $exif = new PelExif();
     $this->assertNull($exif->getTiff());
     $exif->setTiff($tiff);
     $this->assertNotNull($exif->getTiff());
     $jpeg = new PelJpeg(dirname(__FILE__) . '/no-exif.jpg');
     $this->assertNull($jpeg->getExif());
     $jpeg->setExif($exif);
     $this->assertNotNull($jpeg->getExif());
     $jpeg->saveFile('test-output.jpg');
     $this->assertTrue(file_exists('test-output.jpg'));
     $this->assertTrue(filesize('test-output.jpg') > 0);
     /* Now read the file and see if the entries are still there. */
     $jpeg = new PelJpeg('test-output.jpg');
     $exif = $jpeg->getExif();
     $this->assertIsA($exif, 'PelExif');
     $tiff = $exif->getTiff();
     $this->assertIsA($tiff, 'PelTiff');
     $ifd = $tiff->getIfd();
     $this->assertIsA($ifd, 'PelIfd');
     $this->assertEqual($ifd->getType(), PelIfd::IFD0);
     $this->assertTrue($ifd->isLastIfd());
     foreach ($this->entries as $entry) {
         $this->assertEqual($ifd->getEntry($entry->getTag())->getValue(), $entry->getValue());
     }
     unlink('test-output.jpg');
 }

 private function _addExif($filename)
 {
     //if ($_SERVER['SERVER_NAME'] == 'test.psychomorph') return true;
     try {
         $jpeg = new PelJpeg($filename);
         if (!($exif = $jpeg->getExif())) {
             // Create and add empty Exif data to the image (this throws away any old Exif data in the image).
             $exif = new PelExif();
             $jpeg->setExif($exif);
         }
         if (!($tiff = $exif->getTiff())) {
             // Create and add TIFF data to the Exif data (Exif data is actually stored in a TIFF format).
             $tiff = new PelTiff();
             $exif->setTiff($tiff);
         }
         if (!($ifd0 = $tiff->getIfd())) {
             // Create first Image File Directory and associate it with the TIFF data.
             $ifd0 = new PelIfd(PelIfd::IFD0);
             $tiff->setIfd($ifd0);
         }
         if (!($exif_ifd = $ifd0->getSubIfd(PelIfd::EXIF))) {
             // Create exif Image File Directory and associate it with the TIFF data.
             $exif_ifd = new PelIfd(PelIfd::EXIF);
             $ifd0->addSubIfd($exif_ifd);
         }
         if (!($ifd1 = $ifd0->getNextIfd())) {
             // thumbnail does not exist
             $ifd1 = new PelIfd(1);
             $ifd0->setNextIfd($ifd1);
             //$original = ImageCreateFromString($jpeg->getBytes()); # create image resource of original
             //$thumb = makeThumb($original);
             $thumb = $this->_makeThumb($this->getImage());
             // start writing output to buffer
             ob_start();
             // outputs thumb resource contents to buffer
             ImageJpeg($thumb);
             // create PelDataWindow from buffer thumb contents (and end output to buffer)
             $window = new PelDataWindow(ob_get_clean());
             if ($window) {
                 $ifd1->setThumbnail($window);
                 # set window data as thumbnail in ifd1
             }
             //imagedestroy($original);
             imagedestroy($thumb);
         }
         $exifdata = array(PelTag::IMAGE_DESCRIPTION => $this->getDescription(), PelTag::COPYRIGHT => "webmorph.org: " . $_SESSION['user_id'] . ': IMG_ID: ', PelTag::USER_COMMENT => $this->_embeddedTem);
         foreach ($exifdata as $PelTag => $val) {
             if ($PelTag == PelTag::USER_COMMENT) {
                 if (!($entry = $exif_ifd->getEntry($PelTag))) {
                     $exif_ifd->addEntry(new PelEntryUserComment($val));
                 } else {
                     $entry->setValue($val);
                 }
             } else {
                 if (!($entry = $ifd0->getEntry($PelTag))) {
                     $ifd0->addEntry(new PelEntryAscii($PelTag, $val));
                 } else {
                     $entry->setValue($val);
                 }
             }
         }
         $jpeg->saveFile($filename);
         return true;
     } catch (Exception $e) {
         // Handle exception
         echo $e;
     }
 }

    function testRead()
    {
        Pel::clearExceptions();
        Pel::setStrictParsing(false);
        $jpeg = new PelJpeg(dirname(__FILE__) . '/olympus-c50z.jpg');
        $exif = $jpeg->getExif();
        $this->assertIsA($exif, 'PelExif');
        $tiff = $exif->getTiff();
        $this->assertIsA($tiff, 'PelTiff');
        /* The first IFD. */
        $ifd0 = $tiff->getIfd();
        $this->assertIsA($ifd0, 'PelIfd');
        /* Start of IDF $ifd0. */
        $this->assertEqual(count($ifd0->getEntries()), 11);
        $entry = $ifd0->getEntry(270);
        // ImageDescription
        $this->assertIsA($entry, 'PelEntryAscii');
        $this->assertEqual($entry->getValue(), 'OLYMPUS DIGITAL CAMERA         ');
        $this->assertEqual($entry->getText(), 'OLYMPUS DIGITAL CAMERA         ');
        $entry = $ifd0->getEntry(271);
        // Make
        $this->assertIsA($entry, 'PelEntryAscii');
        $this->assertEqual($entry->getValue(), 'OLYMPUS OPTICAL CO.,LTD');
        $this->assertEqual($entry->getText(), 'OLYMPUS OPTICAL CO.,LTD');
        $entry = $ifd0->getEntry(272);
        // Model
        $this->assertIsA($entry, 'PelEntryAscii');
        $this->assertEqual($entry->getValue(), 'X-2,C-50Z       ');
        $this->assertEqual($entry->getText(), 'X-2,C-50Z       ');
        $entry = $ifd0->getEntry(274);
        // Orientation
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 1);
        $this->assertEqual($entry->getText(), 'top - left');
        $entry = $ifd0->getEntry(282);
        // XResolution
        $this->assertIsA($entry, 'PelEntryRational');
        $this->assertEqual($entry->getValue(), array(0 => 144, 1 => 1));
        $this->assertEqual($entry->getText(), '144/1');
        $entry = $ifd0->getEntry(283);
        // YResolution
        $this->assertIsA($entry, 'PelEntryRational');
        $this->assertEqual($entry->getValue(), array(0 => 144, 1 => 1));
        $this->assertEqual($entry->getText(), '144/1');
        $entry = $ifd0->getEntry(296);
        // ResolutionUnit
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 2);
        $this->assertEqual($entry->getText(), 'Inch');
        $entry = $ifd0->getEntry(305);
        // Software
        $this->assertIsA($entry, 'PelEntryAscii');
        $this->assertEqual($entry->getValue(), '28-1012                        ');
        $this->assertEqual($entry->getText(), '28-1012                        ');
        $entry = $ifd0->getEntry(306);
        // DateTime
        $this->assertIsA($entry, 'PelEntryTime');
        $this->assertEqual($entry->getValue(), false);
        $this->assertEqual($entry->getText(), '0000:00:00 00:00:00');
        $entry = $ifd0->getEntry(531);
        // YCbCrPositioning
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 2);
        $this->assertEqual($entry->getText(), 'co-sited');
        $entry = $ifd0->getEntry(50341);
        // PrintIM
        $this->assertIsA($entry, 'PelEntryUndefined');
        $this->assertEqual($entry->getValue(), 'PrintIM0250ˆ	
Ð
èÿ€€€€€€€€€	\'\'—\'°\'\'^\'‹\'Ë\'å\'');
        $this->assertEqual($entry->getText(), '(undefined)');
        /* Sub IFDs of $ifd0. */
        $this->assertEqual(count($ifd0->getSubIfds()), 1);
        $ifd0_0 = $ifd0->getSubIfd(2);
        // IFD Exif
        $this->assertIsA($ifd0_0, 'PelIfd');
        /* Start of IDF $ifd0_0. */
        $this->assertEqual(count($ifd0_0->getEntries()), 30);
        $entry = $ifd0_0->getEntry(33434);
        // ExposureTime
        $this->assertIsA($entry, 'PelEntryRational');
        $this->assertEqual($entry->getValue(), array(0 => 1, 1 => 80));
        $this->assertEqual($entry->getText(), '1/80 sec.');
        $entry = $ifd0_0->getEntry(33437);
        // FNumber
        $this->assertIsA($entry, 'PelEntryRational');
        $this->assertEqual($entry->getValue(), array(0 => 45, 1 => 10));
        $this->assertEqual($entry->getText(), 'f/4.5');
        $entry = $ifd0_0->getEntry(34850);
        // ExposureProgram
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 5);
        $this->assertEqual($entry->getText(), 'Creative program (biased toward depth of field)');
        $entry = $ifd0_0->getEntry(34855);
        // ISOSpeedRatings
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 80);
        $this->assertEqual($entry->getText(), '80');
        $entry = $ifd0_0->getEntry(36864);
        // ExifVersion
//.........这里部分代码省略.........

    function testRead()
    {
        Pel::clearExceptions();
        Pel::setStrictParsing(false);
        $jpeg = new PelJpeg(dirname(__FILE__) . '/sony-dsc-v1.jpg');
        $exif = $jpeg->getExif();
        $this->assertIsA($exif, 'PelExif');
        $tiff = $exif->getTiff();
        $this->assertIsA($tiff, 'PelTiff');
        /* The first IFD. */
        $ifd0 = $tiff->getIfd();
        $this->assertIsA($ifd0, 'PelIfd');
        /* Start of IDF $ifd0. */
        $this->assertEqual(count($ifd0->getEntries()), 10);
        $entry = $ifd0->getEntry(270);
        // ImageDescription
        $this->assertIsA($entry, 'PelEntryAscii');
        $this->assertEqual($entry->getValue(), '                               ');
        $this->assertEqual($entry->getText(), '                               ');
        $entry = $ifd0->getEntry(271);
        // Make
        $this->assertIsA($entry, 'PelEntryAscii');
        $this->assertEqual($entry->getValue(), 'SONY');
        $this->assertEqual($entry->getText(), 'SONY');
        $entry = $ifd0->getEntry(272);
        // Model
        $this->assertIsA($entry, 'PelEntryAscii');
        $this->assertEqual($entry->getValue(), 'DSC-V1');
        $this->assertEqual($entry->getText(), 'DSC-V1');
        $entry = $ifd0->getEntry(274);
        // Orientation
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 6);
        $this->assertEqual($entry->getText(), 'right - top');
        $entry = $ifd0->getEntry(282);
        // XResolution
        $this->assertIsA($entry, 'PelEntryRational');
        $this->assertEqual($entry->getValue(), array(0 => 72, 1 => 1));
        $this->assertEqual($entry->getText(), '72/1');
        $entry = $ifd0->getEntry(283);
        // YResolution
        $this->assertIsA($entry, 'PelEntryRational');
        $this->assertEqual($entry->getValue(), array(0 => 72, 1 => 1));
        $this->assertEqual($entry->getText(), '72/1');
        $entry = $ifd0->getEntry(296);
        // ResolutionUnit
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 2);
        $this->assertEqual($entry->getText(), 'Inch');
        $entry = $ifd0->getEntry(306);
        // DateTime
        $this->assertIsA($entry, 'PelEntryTime');
        $this->assertEqual($entry->getValue(), 1089482993);
        $this->assertEqual($entry->getText(), '2004:07:10 18:09:53');
        $entry = $ifd0->getEntry(531);
        // YCbCrPositioning
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 2);
        $this->assertEqual($entry->getText(), 'co-sited');
        $entry = $ifd0->getEntry(50341);
        // PrintIM
        $this->assertIsA($entry, 'PelEntryUndefined');
        $this->assertEqual($entry->getValue(), 'PrintIM' . "" . '0250' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '');
        $this->assertEqual($entry->getText(), '(undefined)');
        /* Sub IFDs of $ifd0. */
        $this->assertEqual(count($ifd0->getSubIfds()), 1);
        $ifd0_0 = $ifd0->getSubIfd(2);
        // IFD Exif
        $this->assertIsA($ifd0_0, 'PelIfd');
        /* Start of IDF $ifd0_0. */
        $this->assertEqual(count($ifd0_0->getEntries()), 26);
        $entry = $ifd0_0->getEntry(33434);
        // ExposureTime
        $this->assertIsA($entry, 'PelEntryRational');
        $this->assertEqual($entry->getValue(), array(0 => 10, 1 => 600));
        $this->assertEqual($entry->getText(), '1/60 sec.');
        $entry = $ifd0_0->getEntry(33437);
        // FNumber
        $this->assertIsA($entry, 'PelEntryRational');
        $this->assertEqual($entry->getValue(), array(0 => 32, 1 => 10));
        $this->assertEqual($entry->getText(), 'f/3.2');
        $entry = $ifd0_0->getEntry(34850);
        // ExposureProgram
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 2);
        $this->assertEqual($entry->getText(), 'Normal program');
        $entry = $ifd0_0->getEntry(34855);
        // ISOSpeedRatings
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 100);
        $this->assertEqual($entry->getText(), '100');
        $entry = $ifd0_0->getEntry(36864);
        // ExifVersion
        $this->assertIsA($entry, 'PelEntryVersion');
        $this->assertEqual($entry->getValue(), 2.2);
        $this->assertEqual($entry->getText(), 'Exif Version 2.2');
        $entry = $ifd0_0->getEntry(36867);
        // DateTimeOriginal
        $this->assertIsA($entry, 'PelEntryTime');
        $this->assertEqual($entry->getValue(), 1089482993);
//.........这里部分代码省略.........

function addExif($filename, $exifdata)
{
    try {
        $jpeg = new PelJpeg($filename);
        if (!($exif = $jpeg->getExif())) {
            // Create and add empty Exif data to the image (this throws away any old Exif data in the image).
            $exif = new PelExif();
            $jpeg->setExif($exif);
        }
        if (!($tiff = $exif->getTiff())) {
            // Create and add TIFF data to the Exif data (Exif data is actually stored in a TIFF format).
            $tiff = new PelTiff();
            $exif->setTiff($tiff);
        }
        if (!($ifd0 = $tiff->getIfd())) {
            // Create first Image File Directory and associate it with the TIFF data.
            $ifd0 = new PelIfd(PelIfd::IFD0);
            $tiff->setIfd($ifd0);
        }
        if (!($exif_ifd = $ifd0->getSubIfd(PelIfd::EXIF))) {
            // Create first Image File Directory and associate it with the TIFF data.
            $exif_ifd = new PelIfd(PelIfd::EXIF);
            $ifd0->addSubIfd($exif_ifd);
        }
        if (!($ifd1 = $ifd0->getNextIfd())) {
            // thumbnail does not exist
            $ifd1 = new PelIfd(1);
            $ifd0->setNextIfd($ifd1);
            $original = ImageCreateFromString($jpeg->getBytes());
            # create image resource of original
            $thumb = makeThumb($original);
            // start writing output to buffer
            ob_start();
            // outputs thumb resource contents to buffer
            ImageJpeg($thumb);
            // create PelDataWindow from buffer thumb contents (and end output to buffer)
            $window = new PelDataWindow(ob_get_clean());
            if ($window) {
                $ifd1->setThumbnail($window);
                # set window data as thumbnail in ifd1
            }
            imagedestroy($original);
            imagedestroy($thumb);
        }
        foreach ($exifdata as $PelTag => $val) {
            if ($PelTag == PelTag::USER_COMMENT) {
                if (!($entry = $exif_ifd->getEntry($PelTag))) {
                    $exif_ifd->addEntry(new PelEntryUserComment($val));
                } else {
                    $entry->setValue($val);
                }
            } else {
                if (!($entry = $ifd0->getEntry($PelTag))) {
                    $ifd0->addEntry(new PelEntryAscii($PelTag, $val));
                } else {
                    $entry->setValue($val);
                }
            }
        }
        $jpeg->saveFile($filename);
        return true;
    } catch (Exception $e) {
        // Handle exception
        echo $e;
    }
}

    function testRead()
    {
        Pel::clearExceptions();
        Pel::setStrictParsing(false);
        $jpeg = new PelJpeg(dirname(__FILE__) . '/olympus-c765uz.jpg');
        $exif = $jpeg->getExif();
        $this->assertIsA($exif, 'PelExif');
        $tiff = $exif->getTiff();
        $this->assertIsA($tiff, 'PelTiff');
        /* The first IFD. */
        $ifd0 = $tiff->getIfd();
        $this->assertIsA($ifd0, 'PelIfd');
        /* Start of IDF $ifd0. */
        $this->assertEqual(count($ifd0->getEntries()), 11);
        $entry = $ifd0->getEntry(270);
        // ImageDescription
        $this->assertIsA($entry, 'PelEntryAscii');
        $this->assertEqual($entry->getValue(), 'OLYMPUS DIGITAL CAMERA         ');
        $this->assertEqual($entry->getText(), 'OLYMPUS DIGITAL CAMERA         ');
        $entry = $ifd0->getEntry(271);
        // Make
        $this->assertIsA($entry, 'PelEntryAscii');
        $this->assertEqual($entry->getValue(), 'OLYMPUS CORPORATION');
        $this->assertEqual($entry->getText(), 'OLYMPUS CORPORATION');
        $entry = $ifd0->getEntry(272);
        // Model
        $this->assertIsA($entry, 'PelEntryAscii');
        $this->assertEqual($entry->getValue(), 'C765UZ');
        $this->assertEqual($entry->getText(), 'C765UZ');
        $entry = $ifd0->getEntry(274);
        // Orientation
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 1);
        $this->assertEqual($entry->getText(), 'top - left');
        $entry = $ifd0->getEntry(282);
        // XResolution
        $this->assertIsA($entry, 'PelEntryRational');
        $this->assertEqual($entry->getValue(), array(0 => 72, 1 => 1));
        $this->assertEqual($entry->getText(), '72/1');
        $entry = $ifd0->getEntry(283);
        // YResolution
        $this->assertIsA($entry, 'PelEntryRational');
        $this->assertEqual($entry->getValue(), array(0 => 72, 1 => 1));
        $this->assertEqual($entry->getText(), '72/1');
        $entry = $ifd0->getEntry(296);
        // ResolutionUnit
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 2);
        $this->assertEqual($entry->getText(), 'Inch');
        $entry = $ifd0->getEntry(305);
        // Software
        $this->assertIsA($entry, 'PelEntryAscii');
        $this->assertEqual($entry->getValue(), 'v777-76');
        $this->assertEqual($entry->getText(), 'v777-76');
        $entry = $ifd0->getEntry(306);
        // DateTime
        $this->assertIsA($entry, 'PelEntryTime');
        $this->assertEqual($entry->getValue(), 1090073972);
        $this->assertEqual($entry->getText(), '2004:07:17 14:19:32');
        $entry = $ifd0->getEntry(531);
        // YCbCrPositioning
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 2);
        $this->assertEqual($entry->getText(), 'co-sited');
        $entry = $ifd0->getEntry(50341);
        // PrintIM
        $this->assertIsA($entry, 'PelEntryUndefined');
        $this->assertEqual($entry->getValue(), 'PrintIM' . "" . '0250' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . 'ˆ' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '	' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '
' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . 'а' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '
' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . 'ш' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . 'џ' . "" . '' . "" . '' . "" . '€' . "" . '' . "" . '' . "" . '€' . "" . '' . "" . '' . "" . '€' . "" . '' . "" . '' . "" . '€' . "" . '' . "" . '' . "" . '€' . "" . '' . "" . '' . "" . '€€€' . "" . '€' . "" . '' . "" . '' . "" . '	' . "" . '' . "" . '\'' . "" . '' . "" . '' . "" . '' . "" . '\'' . "" . '' . "" . '—' . "" . '' . "" . '\'' . "" . '' . "" . 'А' . "" . '' . "" . '\'' . "" . '' . "" . '' . "" . '' . "" . '\'' . "" . '' . "" . '^' . "" . '' . "" . '\'' . "" . '' . "" . '‹' . "" . '' . "" . '' . "" . '\'' . "" . '' . "" . 'Ы' . "" . '' . "" . '\'' . "" . '' . "" . 'х' . "" . '' . "" . '\'' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '' . "" . '!' . "" . 'š‚' . "" . '' . "" . '' . "" . '' . "" . 'И' . "" . '' . "" . '‚');
        $this->assertEqual($entry->getText(), '(undefined)');
        /* Sub IFDs of $ifd0. */
        $this->assertEqual(count($ifd0->getSubIfds()), 1);
        $ifd0_0 = $ifd0->getSubIfd(2);
        // IFD Exif
        $this->assertIsA($ifd0_0, 'PelIfd');
        /* Start of IDF $ifd0_0. */
        $this->assertEqual(count($ifd0_0->getEntries()), 32);
        $entry = $ifd0_0->getEntry(33434);
        // ExposureTime
        $this->assertIsA($entry, 'PelEntryRational');
        $this->assertEqual($entry->getValue(), array(0 => 10, 1 => 2000));
        $this->assertEqual($entry->getText(), '1/200 sec.');
        $entry = $ifd0_0->getEntry(33437);
        // FNumber
        $this->assertIsA($entry, 'PelEntryRational');
        $this->assertEqual($entry->getValue(), array(0 => 32, 1 => 10));
        $this->assertEqual($entry->getText(), 'f/3.2');
        $entry = $ifd0_0->getEntry(34850);
        // ExposureProgram
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 5);
        $this->assertEqual($entry->getText(), 'Creative program (biased toward depth of field)');
        $entry = $ifd0_0->getEntry(34855);
        // ISOSpeedRatings
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 64);
        $this->assertEqual($entry->getText(), '64');
        $entry = $ifd0_0->getEntry(36864);
        // ExifVersion
//.........这里部分代码省略.........

    function testRead()
    {
        Pel::clearExceptions();
        Pel::setStrictParsing(false);
        $jpeg = new PelJpeg(dirname(__FILE__) . '/leica-d-lux.jpg');
        $exif = $jpeg->getExif();
        $this->assertIsA($exif, 'PelExif');
        $tiff = $exif->getTiff();
        $this->assertIsA($tiff, 'PelTiff');
        /* The first IFD. */
        $ifd0 = $tiff->getIfd();
        $this->assertIsA($ifd0, 'PelIfd');
        /* Start of IDF $ifd0. */
        $this->assertEqual(count($ifd0->getEntries()), 10);
        $entry = $ifd0->getEntry(271);
        // Make
        $this->assertIsA($entry, 'PelEntryAscii');
        $this->assertEqual($entry->getValue(), 'LEICA');
        $this->assertEqual($entry->getText(), 'LEICA');
        $entry = $ifd0->getEntry(272);
        // Model
        $this->assertIsA($entry, 'PelEntryAscii');
        $this->assertEqual($entry->getValue(), 'D-LUX');
        $this->assertEqual($entry->getText(), 'D-LUX');
        $entry = $ifd0->getEntry(274);
        // Orientation
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 1);
        $this->assertEqual($entry->getText(), 'top - left');
        $entry = $ifd0->getEntry(282);
        // XResolution
        $this->assertIsA($entry, 'PelEntryRational');
        $this->assertEqual($entry->getValue(), array(0 => 72, 1 => 1));
        $this->assertEqual($entry->getText(), '72/1');
        $entry = $ifd0->getEntry(283);
        // YResolution
        $this->assertIsA($entry, 'PelEntryRational');
        $this->assertEqual($entry->getValue(), array(0 => 72, 1 => 1));
        $this->assertEqual($entry->getText(), '72/1');
        $entry = $ifd0->getEntry(296);
        // ResolutionUnit
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 2);
        $this->assertEqual($entry->getText(), 'Inch');
        $entry = $ifd0->getEntry(305);
        // Software
        $this->assertIsA($entry, 'PelEntryAscii');
        $this->assertEqual($entry->getValue(), 'Ver1.06');
        $this->assertEqual($entry->getText(), 'Ver1.06');
        $entry = $ifd0->getEntry(306);
        // DateTime
        $this->assertIsA($entry, 'PelEntryTime');
        $this->assertEqual($entry->getValue(), 1099994128);
        $this->assertEqual($entry->getText(), '2004:11:09 09:55:28');
        $entry = $ifd0->getEntry(531);
        // YCbCrPositioning
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 2);
        $this->assertEqual($entry->getText(), 'co-sited');
        $entry = $ifd0->getEntry(50341);
        // PrintIM
        $this->assertIsA($entry, 'PelEntryUndefined');
        $this->assertEqual($entry->getValue(), 'PrintIM0250d	
¬
Ä€	\'\'7\'°\'\'^\'‹\'Ë\'å\'');
        $this->assertEqual($entry->getText(), '(undefined)');
        /* Sub IFDs of $ifd0. */
        $this->assertEqual(count($ifd0->getSubIfds()), 1);
        $ifd0_0 = $ifd0->getSubIfd(2);
        // IFD Exif
        $this->assertIsA($ifd0_0, 'PelIfd');
        /* Start of IDF $ifd0_0. */
        $this->assertEqual(count($ifd0_0->getEntries()), 37);
        $entry = $ifd0_0->getEntry(33434);
        // ExposureTime
        $this->assertIsA($entry, 'PelEntryRational');
        $this->assertEqual($entry->getValue(), array(0 => 10, 1 => 1000));
        $this->assertEqual($entry->getText(), '1/100 sec.');
        $entry = $ifd0_0->getEntry(33437);
        // FNumber
        $this->assertIsA($entry, 'PelEntryRational');
        $this->assertEqual($entry->getValue(), array(0 => 97, 1 => 10));
        $this->assertEqual($entry->getText(), 'f/9.7');
        $entry = $ifd0_0->getEntry(34850);
        // ExposureProgram
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 2);
        $this->assertEqual($entry->getText(), 'Normal program');
        $entry = $ifd0_0->getEntry(34855);
        // ISOSpeedRatings
        $this->assertIsA($entry, 'PelEntryShort');
        $this->assertEqual($entry->getValue(), 100);
        $this->assertEqual($entry->getText(), '100');
        $entry = $ifd0_0->getEntry(36864);
        // ExifVersion
        $this->assertIsA($entry, 'PelEntryVersion');
        $this->assertEqual($entry->getValue(), 2.2);
        $this->assertEqual($entry->getText(), 'Exif Version 2.2');
        $entry = $ifd0_0->getEntry(36867);
        // DateTimeOriginal
//.........这里部分代码省略.........

 public function saveEdit($file, $name, $options = array(), $quality = 100)
 {
     // Check for request forgeries
     WFToken::checkToken() or die('Access to this resource is restricted');
     // check for image editor access
     if ($this->checkAccess('image_editor', 1) === false) {
         JError::raiseError(403, 'Access to this resource is restricted');
     }
     $browser = $this->getBrowser();
     $filesystem = $browser->getFileSystem();
     // check file
     self::validateImagePath($file);
     // clean temp
     $this->cleanEditorTmp($file, false);
     // check new name
     self::validateImagePath($name);
     $upload = JRequest::getVar('file', '', 'files', 'array');
     // create a filesystem result object
     $result = new WFFileSystemResult();
     if (isset($upload) && isset($upload['tmp_name']) && is_uploaded_file($upload['tmp_name'])) {
         $tmp = $upload['tmp_name'];
         self::validateImageFile($tmp);
         $exif = null;
         // get exif data from orignal file
         if (preg_match('#\\.jp(eg|g)$#i', basename($file)) && basename($file) == basename($name)) {
             // load exif classes
             require_once dirname(__FILE__) . '/pel/PelJpeg.php';
             $src = WFUtility::makePath($filesystem->getBaseDir(), $file);
             $jpeg = new PelJpeg($src);
             $exif = $jpeg->getExif();
         }
         $result = $filesystem->upload('multipart', trim($tmp), dirname($file), basename($name));
         if ($result->state === true && $exif) {
             $pel = new PelDataWindow($result->path);
             if (PelJpeg::isValid($pel)) {
                 $jpeg = new PelJpeg();
                 $jpeg->load($pel);
                 $jpeg->setExif($exif);
                 //$jpeg->saveFile($result->path);
                 // write to file
                 JFile::write($result->path, $jpeg->getBytes());
             }
         }
         @unlink($tmp);
     } else {
         // set upload as false - JSON request
         $upload = false;
         $file = WFUtility::makePath($filesystem->getBaseDir(), $file);
         $dest = dirname($file) . '/' . basename($name);
         // get extension
         $ext = WFUtility::getExtension($dest);
         // load image class
         require_once dirname(__FILE__) . '/image/image.php';
         // create image
         $image = new WFImage($file, $this->getParam('prefer_imagick', true));
         foreach ($options as $filter) {
             if (isset($filter->task)) {
                 $args = isset($filter->args) ? (array) $filter->args : array();
                 switch ($filter->task) {
                     case 'resize':
                         $w = $args[0];
                         $h = $args[1];
                         $image->resize($w, $h);
                         break;
                     case 'crop':
                         $w = $args[0];
                         $h = $args[1];
                         $x = $args[2];
                         $y = $args[3];
                         $image->crop($w, $h, $x, $y);
                         break;
                     case 'rotate':
                         $image->rotate(array_shift($args));
                         break;
                     case 'flip':
                         $image->flip(array_shift($args));
                         break;
                     default:
                         $image->filter($filter->task, $args);
                         break;
                 }
             }
         }
         // get image data
         $data = $image->toString($ext);
         // write to file
         if ($data) {
             $result->state = (bool) @JFile::write($dest, $data);
         }
         // set path
         $result->path = $dest;
     }
     if ($result->state === true) {
         // check if its a valid image
         if (@getimagesize($result->path) === false) {
             JFile::delete($result->path);
             throw new InvalidArgumentException('Invalid image file');
         } else {
             $result->path = str_replace(WFUtility::cleanPath(JPATH_SITE), '', $result->path);
             $browser->setResult(WFUtility::cleanPath($result->path, '/'), 'files');
//.........这里部分代码省略.........

function jpegToTest($name, PelJpeg $jpeg)
{
    $exif = $jpeg->getExif();
    println('$exif = %s->getExif();', $name);
    if ($exif == null) {
        println('$this->assertNull($exif);');
    } else {
        jpegContentToTest('$exif', $exif);
    }
}