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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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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 = $export; |
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} |
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/** |
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* @return mixed |
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*/ |
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public function extract() |
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{ |
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$metadata["video"] = $this->getVideoMetadata(); |
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$metadata["streams"] = $this->getStreamsMetadata(); |
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$filename = 'It is not possible to save metadata to clouds.'; |
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if(!$this->export->isTmpDir()){ |
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$filename = $this->saveAsJson($metadata); |
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} |
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return [ |
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'filename' => $filename, |
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'metadata' => $metadata |
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]; |
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} |
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/** |
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* @return mixed |
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*/ |
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private function getVideoMetadata() |
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{ |
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$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' => $streams |
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]; |
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} |
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/** |
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* @return mixed |
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*/ |
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private function getStreamsMetadata() |
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{ |
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$stream_path = $this->export->getPathInfo(); |
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$metadata["filename"] = $stream_path["dirname"] . DIRECTORY_SEPARATOR . $stream_path["basename"]; |
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$metadata["size_of_stream_dir"] = FileManager::directorySize($stream_path["dirname"]); |
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$metadata["created_at"] = date("Y-m-d H:i:s"); |
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$metadata["resolutions"] = $this->getResolutions(); |
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$format_class = explode("\\", get_class($this->export->getFormat())); |
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$metadata["format"] = end($format_class); |
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$export_class = explode("\\", get_class($this->export)); |
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$metadata["streaming_technique"] = end($export_class); |
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if ($this->export instanceof DASH) { |
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$metadata["dash_adaption"] = $this->export->getAdaption(); |
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} elseif ($this->export instanceof HLS) { |
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$metadata["hls_time"] = $this->export->getHlsTime(); |
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$metadata["hls_cache"] = $this->export->isHlsAllowCache(); |
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$metadata["encrypted_hls"] = (bool)$this->export->getHlsKeyInfoFile(); |
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$metadata["ts_sub_directory"] = $this->export->getTsSubDirectory(); |
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$metadata["base_url"] = $this->export->getHlsBaseUrl(); |
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} |
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return $metadata; |
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} |
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/** |
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* @return array |
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*/ |
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private function getResolutions() |
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{ |
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$resolutions = []; |
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foreach ($this->export->getRepresentations() as $key => $representation) { |
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if ($representation instanceof Representation) { |
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$resolutions[$key]["dimension"] = strtoupper($representation->getResize()); |
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$resolutions[$key]["video_bitrate"] = $representation->getKiloBitrate() * 1024; |
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} |
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} |
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return $resolutions; |
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} |
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private function saveAsJson($metadata) |
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{ |
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$name = $this->export->getPathInfo()["filename"] . "-" . bin2hex(openssl_random_pseudo_bytes(6)) . ".json"; |
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$filename = $this->export->getPathInfo()["dirname"] . DIRECTORY_SEPARATOR . $name; |
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file_put_contents($filename, json_encode($metadata, JSON_PRETTY_PRINT)); |
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return $filename; |
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} |
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} |
aminyazdanpanah /
PHP-FFmpeg-video-streaming
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