[VideoEncoder] Port plugin to v3 properly
This commit is contained in:
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@ -22,7 +22,8 @@
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* @package GNUsocial
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* @package GNUsocial
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*
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*
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* @author Bruno Casteleiro <up201505347@fc.up.pt>
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* @author Bruno Casteleiro <up201505347@fc.up.pt>
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* @copyright 2020 Free Software Foundation, Inc http://www.fsf.org
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* @author Diogo Peralta Cordeiro <mail@diogo.site>
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* @copyright 2020-2021 Free Software Foundation, Inc http://www.fsf.org
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* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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*
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*
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* @see http://www.gnu.org/software/social/
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* @see http://www.gnu.org/software/social/
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@ -31,42 +32,123 @@
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namespace Plugin\VideoEncoder;
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namespace Plugin\VideoEncoder;
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use App\Core\Event;
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use App\Core\Event;
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use App\Core\GSFile;
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use function App\Core\I18n\_m;
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use App\Core\Log;
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use App\Core\Modules\Plugin;
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use App\Core\Modules\Plugin;
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use App\Util\Exception\ServerException;
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use App\Util\Exception\TemporaryFileException;
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use App\Util\Formatting;
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use App\Util\Formatting;
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use App\Util\TemporaryFile;
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use Exception;
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use FFMpeg\FFMpeg as ffmpeg;
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use FFMpeg\FFProbe as ffprobe;
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use SplFileInfo;
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class VideoEncoder extends Plugin
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class VideoEncoder extends Plugin
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{
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{
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const PLUGIN_VERSION = '0.1.0';
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/**
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/**
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* Handle resizing GIF files
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* @return string
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*/
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*/
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public function onStartResizeImageFile(
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public function version(): string
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ImageValidate $imagefile,
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{
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string $outpath,
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return '1.0.0';
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array $box
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): bool {
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switch ($imagefile->mimetype) {
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case 'image/gif':
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// resize only if an animated GIF
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if ($imagefile->animated) {
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return !$this->resizeImageFileAnimatedGif($imagefile, $outpath, $box);
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}
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break;
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}
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return true;
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}
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}
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/**
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/**
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* @param array $event_map
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* @param array $event_map
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* @param string $mimetype
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*
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*
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* @return bool
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* @return bool
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*/
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*/
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public function onResizerAvailable(array &$event_map): bool
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public function onFileSanitizerAvailable(array &$event_map, string $mimetype): bool
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{
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{
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//$event_map['video'] = 'ResizeVideoPath';
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if (GSFile::mimetypeMajor($mimetype) !== 'video' && $mimetype !== 'image/gif') {
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return Event::next;
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return Event::next;
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}
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}
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$event_map['video'][] = [$this, 'fileSanitize'];
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$event_map['image/gif'][] = [$this, 'fileSanitize'];
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return Event::next;
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}
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/**
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* @param array $event_map
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* @param string $mimetype
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*
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* @return bool
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*/
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public function onFileResizerAvailable(array &$event_map, string $mimetype): bool
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{
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if (GSFile::mimetypeMajor($mimetype) !== 'video' && $mimetype !== 'image/gif') {
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return Event::next;
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}
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$event_map['video'][] = [$this, 'resizeVideoPath'];
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$event_map['image/gif'][] = [$this, 'resizeVideoPath'];
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return Event::next;
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}
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/**
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* Adds width and height metadata to gifs
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*
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* @param SplFileInfo $file
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* @param null|string $mimetype in/out
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* @param null|int $width out
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* @param null|int $height out
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*
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* @return bool true if sanitized
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*/
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public function fileSanitize(SplFileInfo &$file, ?string &$mimetype, ?int &$width, ?int &$height): bool
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{
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if (//GSFile::mimetypeMajor($mimetype) !== 'video' &&
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$mimetype !== 'image/gif') {
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return false;
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}
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// Create FFProbe instance
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// Need to explicitly tell the drivers' location, or it won't find them
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$ffprobe = ffprobe::create([
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'ffmpeg.binaries' => exec('which ffmpeg'),
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'ffprobe.binaries' => exec('which ffprobe'),
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]);
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$metadata = $ffprobe->streams($file->getRealPath()) // extracts streams informations
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->videos() // filters video streams
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->first(); // returns the first video stream
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$width = $metadata->get('width');
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$height = $metadata->get('height');
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// Only one plugin can handle sanitization
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$mimetype = 'image/gif';
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return true;
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}
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/**
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* Resizes GIF files.
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*
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* @param string $source
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* @param null|TemporaryFile $destination
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* @param int $width
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* @param int $height
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* @param bool $smart_crop
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* @param null|string $mimetype
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*
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* @throws TemporaryFileException
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*
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* @return bool
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*
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*/
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public function resizeVideoPath(string $source, ?TemporaryFile &$destination, int &$width, int &$height, bool $smart_crop, ?string &$mimetype): bool
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{
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switch ($mimetype) {
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case 'image/gif':
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// resize only if an animated GIF
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if ($this->isAnimatedGif($source)) {
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return $this->resizeImageFileAnimatedGif($source, $destination, $width, $height, $smart_crop, $mimetype);
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}
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break;
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}
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return false;
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}
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/**
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/**
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* Generates the view for attachments of type Video
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* Generates the view for attachments of type Video
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@ -86,39 +168,91 @@ class VideoEncoder extends Plugin
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return Event::stop;
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return Event::stop;
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}
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}
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/**
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* Animated GIF test, courtesy of frank at huddler dot com et al:
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* http://php.net/manual/en/function.imagecreatefromgif.php#104473
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* Modified so avoid landing inside of a header (and thus not matching our regexp).
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*
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* @param string $filepath
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*
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* @return bool
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*/
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public function isAnimatedGif(string $filepath)
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{
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if (!($fh = @fopen($filepath, 'rb'))) {
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return false;
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}
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$count = 0;
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//an animated gif contains multiple "frames", with each frame having a
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//header made up of:
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// * a static 4-byte sequence (\x00\x21\xF9\x04)
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// * 4 variable bytes
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// * a static 2-byte sequence (\x00\x2C)
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// In total the header is maximum 10 bytes.
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// We read through the file til we reach the end of the file, or we've found
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// at least 2 frame headers
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while (!feof($fh) && $count < 2) {
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$chunk = fread($fh, 1024 * 100); //read 100kb at a time
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$count += preg_match_all('#\x00\x21\xF9\x04.{4}\x00\x2C#s', $chunk, $matches);
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// rewind in case we ended up in the middle of the header, but avoid
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// infinite loop (i.e. don't rewind if we're already in the end).
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if (!feof($fh) && ftell($fh) >= 9) {
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fseek($fh, -9, SEEK_CUR);
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}
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}
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fclose($fh);
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return $count >= 1; // number of animated frames apart from the original image
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}
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/**
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/**
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* High quality GIF conversion.
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* High quality GIF conversion.
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*
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*
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* @see http://blog.pkh.me/p/21-high-quality-gif-with-ffmpeg.html
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* @see http://blog.pkh.me/p/21-high-quality-gif-with-ffmpeg.html
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* @see https://github.com/PHP-FFMpeg/PHP-FFMpeg/pull/592
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* @see https://github.com/PHP-FFMpeg/PHP-FFMpeg/pull/592
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*
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* @param string $source
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* @param null|TemporaryFile $destination
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* @param int $width
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* @param int $height
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* @param bool $smart_crop
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* @param null|string $mimetype
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*
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* @throws TemporaryFileException
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*
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* @return bool
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*/
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*/
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public function resizeImageFileAnimatedGif(ImageValidate $imagefile, string $outpath, array $box): bool
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public function resizeImageFileAnimatedGif(string $source, ?TemporaryFile &$destination, int &$width, int &$height, bool $smart_crop, ?string &$mimetype): bool
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{
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{
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// Create FFMpeg instance
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// Create FFMpeg instance
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// Need to explictly tell the drivers location or it won't find them
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// Need to explicitly tell the drivers' location, or it won't find them
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$ffmpeg = FFMpeg\FFMpeg::create([
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$ffmpeg = ffmpeg::create([
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'ffmpeg.binaries' => exec('which ffmpeg'),
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'ffmpeg.binaries' => exec('which ffmpeg'),
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'ffprobe.binaries' => exec('which ffprobe'),
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'ffprobe.binaries' => exec('which ffprobe'),
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]);
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]);
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// FFmpeg can't edit existing files in place,
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// FFmpeg can't edit existing files in place,
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// generate temporary output file to avoid that
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// generate temporary output file to avoid that
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$tempfile = new TemporaryFile(['prefix' => 'video']);
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$destination = $destination ?? new TemporaryFile(['prefix' => 'video']);
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// Generate palette file. FFmpeg explictly needs to be told the
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// Generate palette file. FFmpeg explicitly needs to be told the
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// extension for PNG files outputs
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// extension for PNG files outputs
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$palette = $this->tempnam_sfx(sys_get_temp_dir(), '.png');
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$palette = $this->tempnam_sfx(sys_get_temp_dir(), '.png');
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// Build filters
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// Build filters
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$filters = 'fps=30';
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$filters = 'fps=30';
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$filters .= ",crop={$box['w']}:{$box['h']}:{$box['x']}:{$box['y']}";
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// if ($crop) {
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$filters .= ",scale={$box['width']}:{$box['height']}:flags=lanczos";
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// $filters .= ",crop={$width}:{$height}:{$x}:{$y}";
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// }
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$filters .= ",scale={$width}:{$height}:flags=lanczos";
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// Assemble commands for palette generation
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// Assemble commands for palette generation
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$commands[] = $commands_2[] = '-f';
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$commands[] = $commands_2[] = '-f';
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$commands[] = $commands_2[] = 'gif';
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$commands[] = $commands_2[] = 'gif';
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$commands[] = $commands_2[] = '-i';
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$commands[] = $commands_2[] = '-i';
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$commands[] = $commands_2[] = $imagefile->filepath;
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$commands[] = $commands_2[] = $source;
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$commands[] = '-vf';
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$commands[] = '-vf';
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$commands[] = $filters . ',palettegen';
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$commands[] = $filters . ',palettegen';
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$commands[] = '-y';
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$commands[] = '-y';
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@ -132,7 +266,7 @@ class VideoEncoder extends Plugin
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$commands_2[] = '-f';
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$commands_2[] = '-f';
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$commands_2[] = 'gif';
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$commands_2[] = 'gif';
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$commands_2[] = '-y';
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$commands_2[] = '-y';
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$commands_2[] = $tempfile->getRealPath();
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$commands_2[] = $destination->getRealPath();
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$success = true;
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$success = true;
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@ -140,7 +274,7 @@ class VideoEncoder extends Plugin
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try {
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try {
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$ffmpeg->getFFMpegDriver()->command($commands);
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$ffmpeg->getFFMpegDriver()->command($commands);
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} catch (Exception $e) {
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} catch (Exception $e) {
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$this->log(LOG_ERR, 'Unable to generate the palette image');
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Log::error('Unable to generate the palette image');
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$success = false;
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$success = false;
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}
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}
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@ -150,21 +284,13 @@ class VideoEncoder extends Plugin
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$ffmpeg->getFFMpegDriver()->command($commands_2);
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$ffmpeg->getFFMpegDriver()->command($commands_2);
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}
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}
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} catch (Exception $e) {
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} catch (Exception $e) {
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$this->log(LOG_ERR, 'Unable to generate the GIF image');
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Log::error('Unable to generate the GIF image');
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$success = false;
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$success = false;
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}
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}
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if ($success) {
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try {
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$tempfile->commit($outpath);
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} catch (TemporaryFileException $e) {
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$this->log(LOG_ERR, 'Unable to save the GIF image');
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$success = false;
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}
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}
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@unlink($palette);
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@unlink($palette);
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$mimetype = 'image/gif';
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return $success;
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return $success;
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}
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}
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@ -173,6 +299,11 @@ class VideoEncoder extends Plugin
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* Courtesy of tomas at slax dot org:
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* Courtesy of tomas at slax dot org:
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*
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*
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* @see https://www.php.net/manual/en/function.tempnam.php#98232
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* @see https://www.php.net/manual/en/function.tempnam.php#98232
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*
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* @param string $dir
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* @param string $suffix
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*
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* @return string
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*/
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*/
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private function tempnam_sfx(string $dir, string $suffix): string
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private function tempnam_sfx(string $dir, string $suffix): string
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{
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{
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@ -185,14 +316,22 @@ class VideoEncoder extends Plugin
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return $file;
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return $file;
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}
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}
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/**
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* @param array $versions
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*
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* @throws ServerException
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*
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* @return bool
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*/
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public function onPluginVersion(array &$versions): bool
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public function onPluginVersion(array &$versions): bool
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{
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{
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$versions[] = ['name' => 'FFmpeg',
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$versions[] = ['name' => 'FFmpeg',
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'version' => self::PLUGIN_VERSION,
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'version' => self::version(),
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'author' => 'Bruno Casteleiro',
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'author' => 'Bruno Casteleiro, Diogo Peralta Cordeiro',
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'homepage' => 'https://notabug.org/diogo/gnu-social/src/nightly/plugins/FFmpeg',
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'homepage' => 'https://notabug.org/diogo/gnu-social/src/nightly/plugins/FFmpeg',
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'rawdescription' => // TRANS: Plugin description.
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'rawdescription' => // TRANS: Plugin description.
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_m('Use PHP-FFMpeg for resizing animated GIFs'), ];
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_m('Use PHP-FFMpeg for some more video support.'),
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return true;
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];
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return Event::next;
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}
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}
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}
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}
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