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<?php |
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/** |
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* This file is part of the PHP-FFmpeg-video-streaming package. |
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* |
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* (c) Amin Yazdanpanah <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Streaming; |
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use Streaming\Exception\InvalidArgumentException; |
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class Metadata |
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{ |
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/** |
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* @var Export |
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*/ |
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private $export; |
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/** |
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* Metadata constructor. |
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* @param Export $export |
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*/ |
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public function __construct(Export $export) |
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{ |
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$this->export = $export; |
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} |
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/** |
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* @return mixed |
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*/ |
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private function getVideoMetadata(): array |
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{ |
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$probe = $this->export->getMedia()->probe(); |
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$streams = $probe['streams']->all(); |
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$format = $probe['format']->all(); |
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foreach ($streams as $key => $stream) { |
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$streams[$key] = $stream->all(); |
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} |
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return [ |
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'format' => $format, |
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'streams' => $streams |
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]; |
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} |
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/** |
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* @return mixed |
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*/ |
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private function getStreamsMetadata(): array |
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{ |
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$stream_path = $this->export->getPathInfo(); |
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$filename = $stream_path["dirname"] . DIRECTORY_SEPARATOR . $stream_path["basename"]; |
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$export_class = explode("\\", get_class($this->export)); |
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$format_class = explode("\\", get_class($this->export->getFormat())); |
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$metadata = [ |
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"filename" => $filename, |
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"size_of_stream_dir" => File::directorySize($stream_path["dirname"]), |
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"created_at" => file_exists($filename) ? date("Y-m-d H:i:s", filemtime($filename)) : 'The file has been deleted', |
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"resolutions" => $this->getResolutions(), |
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"format" => end($format_class), |
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"streaming_technique" => end($export_class) |
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]; |
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if ($this->export instanceof DASH) { |
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$metadata = array_merge($metadata, ["seg_duration" => $this->export->getSegDuration()]); |
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} elseif ($this->export instanceof HLS) { |
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$metadata = array_merge( |
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$metadata, |
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[ |
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"hls_time" => $this->export->getHlsTime(), |
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"hls_cache" => (bool)$this->export->isHlsAllowCache(), |
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"encrypted_hls" => (bool)$this->export->getHlsKeyInfoFile(), |
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"ts_sub_directory" => $this->export->getTsSubDirectory(), |
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"base_url" => $this->export->getHlsBaseUrl() |
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] |
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); |
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} |
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return $metadata; |
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} |
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/** |
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* @return array |
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*/ |
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private function getResolutions(): array |
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{ |
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$resolutions = []; |
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if (!method_exists($this->export, 'getRepresentations')) { |
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return $resolutions; |
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} |
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foreach ($this->export->getRepresentations() as $representation) { |
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$resolutions[] = [ |
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"dimension" => strtoupper($representation->getResize()), |
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"video_kilo_bitrate" => $representation->getKiloBitrate(), |
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"audio_kilo_bitrate" => $representation->getAudioKiloBitrate() ?? "Not specified" |
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]; |
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} |
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return $resolutions; |
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} |
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/** |
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* @return array |
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*/ |
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public function getMetadata(): array |
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{ |
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return [ |
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"video" => $this->getVideoMetadata(), |
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"streams" => $this->getStreamsMetadata() |
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]; |
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} |
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/** |
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* @param string $filename |
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* @param int $opts |
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* @return string |
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*/ |
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public function saveAsJson(string $filename = null, int $opts = null): string |
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{ |
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if (is_null($filename)) { |
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if ($this->export->isTmpDir()) { |
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throw new InvalidArgumentException("It is a temp directory! It is not possible to save it"); |
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} |
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$name = uniqid(($this->export->getPathInfo()["filename"] ?? "meta") . "-") . ".json"; |
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$filename = $this->export->getPathInfo()["dirname"] . DIRECTORY_SEPARATOR . $name; |
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} |
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file_put_contents( |
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$filename, |
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json_encode($this->getMetadata(), $opts ?? JSON_PRETTY_PRINT) |
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); |
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return $filename; |
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} |
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/** |
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* @param string|null $save_to |
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* @param int|null $opts |
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* @return array |
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*/ |
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public function export(string $save_to = null, int $opts = null): array |
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{ |
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return array_merge($this->getMetadata(), ['filename' => $this->saveAsJson($save_to, $opts)]); |
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} |
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} |
aminyazdanpanah /
PHP-FFmpeg-video-streaming
