raw support

[slanla]

I has modify the gallery's code (thumbnail.php and image.php) to allow the browser display raw files.
The environment of os need to install exiftool.
For ubuntu, you should be use "sudo apt-get install exiftool" to install exiftool.
Applying the modify code, the browser would be display raw file correctly,
However, for ios app, the ownCloud app could not display raw file correct.
It is need to modify of app by owncloud's authorities.

//---------------------------------------------------------------------------------
in gallery/lib/thumbnail.php: line 52
//---------------------------------------------------------------------------------
if(in_array(strtolower($extension),array("nef","orf")))
{
　$this->path = $galleryDir . $image . '.jpg';
　$jpgfile = $galleryDir . $image . '_o.jpg';　　　　
　$img=$this->view->getLocalFile($imagePath);
　if (!file_exists($this->path))　
　{
　　//raw file to jpg
　　$cmd="exiftool -b -JpgFromRaw "{$img}" > "{$jpgfile}"";　 //need exiftool
　　system("$cmd");
　　//jpg to thumbnail
　　$this->image = new \OC_Image($jpgfile);
　　if ($this->image->valid()) {
　　　$this->image->fixOrientation();
　　　if ($square) {
　　　　$this->image->centerCrop(200);
　　　} else {
　　　　$this->image->fitIn(400, 200);
　　　}
　　　$this->image->save($this->path);
　　}
　}
}
else
　$this->path = $galleryDir . $image . '.' . $extension; //original line number 52

//---------------------------------------------------------------------------------
in gallery/ajax/image.php: line 30
//---------------------------------------------------------------------------------
$extension=strtolower(pathinfo($img,PATHINFO_EXTENSION));
if(in_array($extension,array("nef","orf")))
{
　$main_filename=pathinfo($img,PATHINFO_FILENAME);
　$galleryDir = \OC_User::getHome($owner) . '/gallery/' . $owner . '/';
　$img_path=dirname($img);
　$jpg="{$galleryDir}/{$img_path}/{$main_filename}_o.jpg";　
　if(file_exists($jpg))
　{　　
　　header('Content-Type: image/jpeg');
readfile($jpg);
　　exit;
　}
}
//---------------------------------------------------------------------------------

[DeepDiver1975]

please submit a pull request - thanks a lot for your contribution!

[mmattel]

Suggestion: check if exiftool is present/accessible and decide if raw conversion is possible. A big feature would be, that conversion time would change something in the browser showing the user conversion is in progress.

You can easily add additional raw formats to the array, please see the list added:

From: http://en.wikipedia.org/wiki/Raw_image_format
And: http://en.wikipedia.org/wiki/ExifTool
(And: http://www.sno.phy.queensu.ca/~phil/exiftool/exiftool_pod.html)

Adobe Digital Negative DNG *.dng
Canon photo RAW CRW *.crw
Canon photo RAW CR2 *.cr2
CREO Photo RAW *.mos
FUJI photo RAW *.raf
Mamiya photo RAW *.mef
Minolta photo RAW *.mrw
Nikon Electronic format *.nef
Olympus Raw File *.orf
Panasonic photo RAW *.raw
Pentax photo RAW *.pef
Samsung photo RAW *.tiff, *.pef
Sony RAW file *.srf, *.sr2, *.arw

One question, hopefully not stupid, but does this also work when the source folder containing the picture is read only?. I ask because of the statement: $this->image->save($this->path)

[oparoz]

Implementation via ImageMagick
owncloud/core#13652

[AddoSolutions]

Can this be closed then?