208 lines
6.3 KiB
PHP
208 lines
6.3 KiB
PHP
<?php
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/*
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* Name: Handle Video
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* Author: velocity37 <velocity37@gmail.com>
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* Modified By: Shish <webmaster@shishnet.org>, jgen <jeffgenovy@gmail.com>, im-mi <im.mi.mail.mi@gmail.com>
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* License: GPLv2
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* Description: Handle FLV, MP4, OGV and WEBM video files.
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* Documentation:
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* Based heavily on "Handle MP3" by Shish.<br><br>
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* FLV: Flash player<br>
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* MP4: HTML5 with Flash fallback<br>
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* OGV, WEBM: HTML5<br>
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* MP4's flash fallback is forced with a bit of Javascript as some browsers won't fallback if they can't play H.264.
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* In the future, it may be necessary to change the user agent checks to reflect the current state of H.264 support.<br><br>
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* Made possible by:<br>
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* <a href='http://getid3.sourceforge.net/'>getID3()</a> - Gets media information with PHP (no bulky FFMPEG API required).<br>
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*/
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class VideoFileHandler extends DataHandlerExtension {
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public function onInitExt(InitExtEvent $event) {
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global $config;
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if($config->get_int("ext_handle_video_version") < 1) {
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if($ffmpeg = shell_exec((PHP_OS == 'WINNT' ? 'where' : 'which') . ' ffmpeg')) {
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//ffmpeg exists in PATH, check if it's executable, and if so, default to it instead of static
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if(is_executable(strtok($ffmpeg, PHP_EOL))) {
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$config->set_default_string('video_thumb_engine', 'ffmpeg');
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$config->set_default_string('thumb_ffmpeg_path', 'ffmpeg');
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}
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} else {
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$config->set_default_string('video_thumb_engine', 'static');
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$config->set_default_string('thumb_ffmpeg_path', '');
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}
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// By default we generate thumbnails ignoring the aspect ratio of the video file.
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//
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// Why? - This allows Shimmie to work with older versions of FFmpeg by default,
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// rather than completely failing out of the box. If people complain that their
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// thumbnails are distorted, then they can turn this feature on manually later.
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$config->set_default_bool('video_thumb_ignore_aspect_ratio', TRUE);
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$config->set_int("ext_handle_video_version", 1);
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log_info("pools", "extension installed");
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}
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$config->set_default_bool('video_playback_autoplay', TRUE);
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$config->set_default_bool('video_playback_loop', TRUE);
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}
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public function onSetupBuilding(SetupBuildingEvent $event) {
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//global $config;
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$thumbers = array(
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'None' => 'static',
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'ffmpeg' => 'ffmpeg'
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);
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$sb = new SetupBlock("Video Thumbnail Options");
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$sb->add_choice_option("video_thumb_engine", $thumbers, "Engine: ");
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//if($config->get_string("video_thumb_engine") == "ffmpeg") {
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$sb->add_label("<br>Path to ffmpeg: ");
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$sb->add_text_option("thumb_ffmpeg_path");
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//}
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// Some older versions of ffmpeg have trouble with the automatic aspect ratio scaling.
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// This adds an option in the Board Config to disable the aspect ratio scaling.
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$sb->add_label("<br>");
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$sb->add_bool_option("video_thumb_ignore_aspect_ratio", "Ignore aspect ratio when creating thumbnails: ");
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$event->panel->add_block($sb);
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$sb = new SetupBlock("Video Playback Options");
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$sb->add_bool_option("video_playback_autoplay", "Autoplay: ");
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$sb->add_label("<br>");
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$sb->add_bool_option("video_playback_loop", "Loop: ");
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$event->panel->add_block($sb);
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}
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/**
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* Generate the Thumbnail image for particular file.
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*
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* @param string $hash
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* @return bool Returns true on successful thumbnail creation.
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*/
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protected function create_thumb($hash) {
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global $config;
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$ok = false;
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switch($config->get_string("video_thumb_engine"))
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{
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default:
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case 'static':
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$outname = warehouse_path("thumbs", $hash);
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copy("ext/handle_video/thumb.jpg", $outname);
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$ok = true;
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break;
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case 'ffmpeg':
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$ffmpeg = escapeshellcmd($config->get_string("thumb_ffmpeg_path"));
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$w = (int)$config->get_int("thumb_width");
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$h = (int)$config->get_int("thumb_height");
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$inname = escapeshellarg(warehouse_path("images", $hash));
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$outname = escapeshellarg(warehouse_path("thumbs", $hash));
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if ($config->get_bool("video_thumb_ignore_aspect_ratio") == true)
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{
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$cmd = escapeshellcmd("{$ffmpeg} -y -i {$inname} -ss 00:00:00.0 -f image2 -vframes 1 {$outname}");
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}
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else
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{
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$scale = 'scale="' . escapeshellarg("if(gt(a,{$w}/{$h}),{$w},-1)") . ':' . escapeshellarg("if(gt(a,{$w}/{$h}),-1,{$h})") . '"';
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$cmd = "{$ffmpeg} -y -i {$inname} -vf {$scale} -ss 00:00:00.0 -f image2 -vframes 1 {$outname}";
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}
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exec($cmd, $output, $returnValue);
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if ((int)$returnValue == (int)1)
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{
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$ok = true;
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}
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log_debug('handle_video', "Generating thumbnail with command `$cmd`, returns $returnValue");
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break;
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}
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return $ok;
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}
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/**
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* @param string $ext
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* @return bool
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*/
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protected function supported_ext($ext) {
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$exts = array("flv", "mp4", "m4v", "ogv", "webm");
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return in_array(strtolower($ext), $exts);
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}
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/**
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* @param string $filename
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* @param mixed[] $metadata
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* @return Image
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*/
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protected function create_image_from_data($filename, $metadata) {
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$image = new Image();
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require_once('lib/getid3/getid3/getid3.php');
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$getID3 = new getID3;
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$ThisFileInfo = $getID3->analyze($filename);
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if (isset($ThisFileInfo['video']['resolution_x']) && isset($ThisFileInfo['video']['resolution_y'])) {
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$image->width = $ThisFileInfo['video']['resolution_x'];
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$image->height = $ThisFileInfo['video']['resolution_y'];
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} else {
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$image->width = 0;
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$image->height = 0;
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}
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switch ($ThisFileInfo['mime_type']) {
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case "video/webm":
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$image->ext = "webm";
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break;
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case "video/quicktime":
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$image->ext = "mp4";
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break;
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case "application/ogg":
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$image->ext = "ogv";
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break;
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case "video/x-flv":
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$image->ext = "flv";
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break;
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}
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$image->filesize = $metadata['size'];
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$image->hash = $metadata['hash'];
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$image->filename = $metadata['filename'];
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$image->tag_array = $metadata['tags'];
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$image->source = $metadata['source'];
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return $image;
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}
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/**
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* @param string $file
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* @return bool
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*/
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protected function check_contents($file) {
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if (file_exists($file)) {
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require_once('lib/getid3/getid3/getid3.php');
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$getID3 = new getID3;
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$ThisFileInfo = $getID3->analyze($file);
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if (isset($ThisFileInfo['mime_type']) && (
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$ThisFileInfo['mime_type'] == "video/webm" ||
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$ThisFileInfo['mime_type'] == "video/quicktime" ||
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$ThisFileInfo['mime_type'] == "application/ogg" ||
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$ThisFileInfo['mime_type'] == 'video/x-flv')
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) {
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return TRUE;
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}
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}
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return FALSE;
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}
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}
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