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New function to resize an image to not exceed a given file size

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This commit is contained in:
Michael 2023-08-10 21:12:35 +00:00
parent 41bc148040
commit 794378ed29
1 changed files with 32 additions and 51 deletions
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81
src/Model/Photo.php
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@ -989,6 +989,35 @@ class Photo
return DBA::exists('photo', ['resource-id' => $guid]);
}
/**
* Resize to a given maximum file size
*
* @param Image $image
* @param integer $maximagesize
* @return Image
*/
public static function resizeToFileSize(Image $image, int $maximagesize): Image
{
$filesize = strlen($image->asString());
$width = $image->getWidth();
$height = $image->getHeight();
if ($maximagesize && ($filesize > $maximagesize)) {
// Scale down to multiples of 640 until the maximum size isn't exceeded anymore
foreach ([5120, 2560, 1280, 640, 320] as $pixels) {
if (($filesize > $maximagesize) && (max($width, $height) > $pixels)) {
Logger::info('Resize', ['size' => $filesize, 'width' => $width, 'height' => $height, 'max' => $maximagesize, 'pixels' => $pixels]);
$image->scaleDown($pixels);
$filesize = strlen($image->asString());
$width = $image->getWidth();
$height = $image->getHeight();
}
}
}
return $image;
}
/**
* Tries to resize image to wanted maximum size
*
@ -1003,30 +1032,7 @@ class Photo
Logger::info('File upload: Scaling picture to new size', ['max-length' => $max_length]);
}
$filesize = strlen($image->asString());
$width = $image->getWidth();
$height = $image->getHeight();
$maximagesize = Strings::getBytesFromShorthand(DI::config()->get('system', 'maximagesize'));
if ($maximagesize && ($filesize > $maximagesize)) {
// Scale down to multiples of 640 until the maximum size isn't exceeded anymore
foreach ([5120, 2560, 1280, 640] as $pixels) {
if (($filesize > $maximagesize) && (max($width, $height) > $pixels)) {
Logger::info('Resize', ['size' => $filesize, 'width' => $width, 'height' => $height, 'max' => $maximagesize, 'pixels' => $pixels]);
$image->scaleDown($pixels);
$filesize = strlen($image->asString());
$width = $image->getWidth();
$height = $image->getHeight();
}
}
if ($filesize > $maximagesize) {
Logger::notice('Image size is too big', ['size' => $filesize, 'max' => $maximagesize]);
return null;
}
}
return $image;
return self::resizeToFileSize($image, Strings::getBytesFromShorthand(DI::config()->get('system', 'maximagesize')));
}
/**
@ -1237,32 +1243,7 @@ class Photo
*/
public static function storeWithPreview(Image $image, int $uid, string $resource_id, string $filename, int $filesize, string $album, string $description, string $allow_cid, string $allow_gid, string $deny_cid, string $deny_gid): int
{
if ($filesize == 0) {
$filesize = strlen($image->asString());
}
$width = $image->getWidth();
$height = $image->getHeight();
$maximagesize = Strings::getBytesFromShorthand(DI::config()->get('system', 'maximagesize'));
if ($maximagesize && $filesize > $maximagesize) {
// Scale down to multiples of 640 until the maximum size isn't exceeded anymore
foreach ([5120, 2560, 1280, 640, 320] as $pixels) {
if ($filesize > $maximagesize && max($width, $height) > $pixels) {
DI::logger()->info('Resize', ['size' => $filesize, 'width' => $width, 'height' => $height, 'max' => $maximagesize, 'pixels' => $pixels]);
$image->scaleDown($pixels);
$filesize = strlen($image->asString());
$width = $image->getWidth();
$height = $image->getHeight();
}
}
if ($filesize > $maximagesize) {
DI::logger()->notice('Image size is too big', ['size' => $filesize, 'max' => $maximagesize]);
return -1;
}
}
$image = self::resizeToFileSize($image, Strings::getBytesFromShorthand(DI::config()->get('system', 'maximagesize')));
$width = $image->getWidth();
$height = $image->getHeight();