Hi all,
First, I wanna say thank you to the founders of this very nice open source PEL.
Second, I have a problem regarding setThumbnail img and need your helps. Here
is my code:
//-------------------------------------------------------------------------------------------------
//create thumbnail img
$img = imagecreatefromjpeg("./I1.JPG");
$thumb = create_thumbnail_image($img, 0.1); //create a thumbnail image with
size = 10% of its org
//insert new thumbnail to img
$jpeg = new PelJpeg();
$jpeg->loadFile("./I1.JPG");
$exif = $jpeg->getExif();
$tiff = $exif->getTiff();
$ifd0 = $tiff->getIfd();
$ifd0->setThumbnail(new PelDataWindow($thumb));
$jpeg->setExif($exif);
//write to file
file_put_contents("./out.jpg",$jpeg->getBytes());
//-------------------------------------------------------------------------------------------------
Running above code, I got this exception:
//-------------------------------------------------------------------------------------------------
Fatal error: Uncaught exception 'PelDataWindowOffsetException' with message
'Offset -1 not within [0, 14]' in
D:\Projects\MIP\WIP\Source\MIP-Server\lib\pel\PelDataWindow.php:243 Stack
trace: #0 D:\Projects\MIP\WIP\Source\MIP-Server\lib\pel\PelDataWindow.php(303):
PelDataWindow->validateOffset(-1) #1
D:\Projects\MIP\WIP\Source\MIP-Server\lib\pel\PelIfd.php(549):
PelDataWindow->getByte(-1) #2
D:\Projects\MIP\WIP\Source\MIP-Server\web\thumb.php(17):
PelIfd->setThumbnail(Object(PelDataWindow)) #3 {main} thrown in
D:\Projects\MIP\WIP\Source\MIP-Server\lib\pel\PelDataWindow.php on line 243
//-------------------------------------------------------------------------------------------------
This is due to a incorrect $thumb data is set to the PelDataWindow constructor.
What kind of thumbnail data will I need to set to the PelDataWindow
constructor? Any idea will be much appreciated. Thank you.
VanPH
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