"matroska", VideoContainers::WEBM => "webm", VideoContainers::OGG => "ogg", VideoContainers::MP4 => "mp4", ]; /** * Needs to be after upload, but before the processing extensions */ public function get_priority(): int { return 45; } public function onInitExt(InitExtEvent $event): void { global $config; $config->set_default_bool(TranscodeVideoConfig::ENABLED, true); $config->set_default_bool(TranscodeVideoConfig::UPLOAD, false); $config->set_default_bool(TranscodeVideoConfig::UPLOAD_TO_NATIVE_CONTAINER, false); } public function onImageAdminBlockBuilding(ImageAdminBlockBuildingEvent $event): void { global $user; if ($event->image->video === true && $user->can(Permissions::EDIT_FILES)) { $options = self::get_output_options($event->image->get_mime(), $event->image->video_codec); if (!empty($options) && sizeof($options) > 1) { $event->add_part($this->theme->get_transcode_html($event->image, $options)); } } } public function onSetupBuilding(SetupBuildingEvent $event): void { $sb = $event->panel->create_new_block("Video Transcode"); $sb->start_table(); $sb->add_bool_option(TranscodeVideoConfig::ENABLED, "Allow transcoding images: ", true); $sb->add_bool_option(TranscodeVideoConfig::UPLOAD_TO_NATIVE_CONTAINER, "Convert videos using MPEG-4 or WEBM to their native containers:", true); $sb->end_table(); } /* public function onDataUpload(DataUploadEvent $event): void { global $config; if ($config->get_bool(TranscodeVideoConfig::UPLOAD) == true) { $ext = strtolower($event->type); $ext = Media::normalize_format($ext); if ($event->type=="gif"&&Media::is_animated_gif($event->tmpname)) { return; } if (in_array($ext, array_values(self::INPUT_FORMATS))) { $target_format = $config->get_string(TranscodeVideoConfig::UPLOAD_PREFIX.$ext); if (empty($target_format)) { return; } try { $new_image = $this->transcode_image($event->tmpname, $ext, $target_format); $event->set_tmpname($new_image, Media::determine_ext($target_format)); } catch (Exception $e) { log_error("transcode_video", "Error while performing upload transcode: ".$e->getMessage()); // We don't want to interfere with the upload process, // so if something goes wrong the untranscoded image jsut continues } } } } */ public function onPageRequest(PageRequestEvent $event): void { global $page, $user; if ($event->page_matches("transcode_video/{image_id}", method: "POST", permission: Permissions::EDIT_FILES)) { $image_id = $event->get_iarg('image_id'); $image_obj = Image::by_id($image_id); if (is_null($image_obj)) { $this->theme->display_error(404, "Post not found", "No post in the database has the ID #$image_id"); } else { try { $this->transcode_and_replace_video($image_obj, $event->req_POST('transcode_format')); $page->set_mode(PageMode::REDIRECT); $page->set_redirect(make_link("post/view/".$image_id)); } catch (VideoTranscodeException $e) { $this->theme->display_transcode_error($page, "Error Transcoding", $e->getMessage()); } } } } public function onBulkActionBlockBuilding(BulkActionBlockBuildingEvent $event): void { global $user; if ($user->can(Permissions::EDIT_FILES)) { $event->add_action( self::ACTION_BULK_TRANSCODE, "Transcode Video", null, "", $this->theme->get_transcode_picker_html(self::get_output_options()) ); } } public function onBulkAction(BulkActionEvent $event): void { global $user, $database, $page; switch ($event->action) { case self::ACTION_BULK_TRANSCODE: if (!isset($event->params['transcode_format'])) { return; } if ($user->can(Permissions::EDIT_FILES)) { $format = $event->params['transcode_format']; $total = 0; foreach ($event->items as $image) { try { // If a subsequent transcode fails, the database needs to have everything about the previous // transcodes recorded already, otherwise the image entries will be stuck pointing to // missing image files $transcoded = $database->with_savepoint(function () use ($image, $format) { return $this->transcode_and_replace_video($image, $format); }); if ($transcoded) { $total++; } } catch (\Exception $e) { log_error("transcode_video", "Error while bulk transcode on item {$image->id} to $format: ".$e->getMessage()); } } $page->flash("Transcoded $total items"); } break; } } /** * @return array */ private static function get_output_options(?string $starting_container = null, ?string $starting_codec = null): array { $output = ["" => ""]; foreach (VideoContainers::ALL as $container) { if ($starting_container == $container) { continue; } if (!empty($starting_codec) && !VideoContainers::is_video_codec_supported($container, $starting_codec)) { continue; } $description = MimeMap::get_name_for_mime($container); $output[$description] = $container; } return $output; } private function transcode_and_replace_video(Image $image, string $target_mime): bool { if ($image->get_mime() == $target_mime) { return false; } if ($image->video == null || ($image->video === true && empty($image->video_codec))) { // If image predates the media system, or the video codec support, run a media check send_event(new MediaCheckPropertiesEvent($image)); $image->save_to_db(); } if (empty($image->video_codec)) { throw new VideoTranscodeException("Cannot transcode item $image->id because its video codec is not known"); } $original_file = warehouse_path(Image::IMAGE_DIR, $image->hash); $tmp_filename = shm_tempnam("transcode_video"); $tmp_filename = $this->transcode_video($original_file, $image->video_codec, $target_mime, $tmp_filename); send_event(new ImageReplaceEvent($image, $tmp_filename)); return true; } private function transcode_video(string $source_file, string $source_video_codec, string $target_mime, string $target_file): string { global $config; if (empty($source_video_codec)) { throw new VideoTranscodeException("Cannot transcode item because it's video codec is not known"); } $ffmpeg = $config->get_string(MediaConfig::FFMPEG_PATH); if (empty($ffmpeg)) { throw new VideoTranscodeException("ffmpeg path not configured"); } $command = new CommandBuilder($ffmpeg); $command->add_flag("-y"); // Bypass y/n prompts $command->add_flag("-i"); $command->add_escaped_arg($source_file); if (!VideoContainers::is_video_codec_supported($target_mime, $source_video_codec)) { throw new VideoTranscodeException("Cannot transcode item to $target_mime because it does not support the video codec $source_video_codec"); } // TODO: Implement transcoding the codec as well. This will be much more advanced than just picking a container. $command->add_flag("-c"); $command->add_flag("copy"); $command->add_flag("-map"); // Copies all streams $command->add_flag("0"); $command->add_flag("-f"); $format = self::FORMAT_NAMES[$target_mime]; $command->add_flag($format); $command->add_escaped_arg($target_file); $command->execute(true); return $target_file; } }