mirror of
https://github.com/Poniverse/Pony.fm.git
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60 lines
1.9 KiB
PHP
60 lines
1.9 KiB
PHP
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<?php
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/**
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* FFmpegOutputProvider ffmpeg provider implementation
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*
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* @author char0n (Vladimír Gorej, gorej@codescale.net)
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* @package FFmpegPHP
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* @subpackage provider
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* @license New BSD
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* @version 2.6
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*/
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class FFmpegOutputProvider extends AbstractOutputProvider {
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protected static $EX_CODE_NO_FFMPEG = 334560;
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/**
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* Constructor
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*
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* @param string $ffmpegBinary path to ffmpeg executable
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* @param boolean $persistent persistent functionality on/off
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*/
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public function __construct($ffmpegBinary = 'ffmpeg', $persistent = false) {
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parent::__construct($ffmpegBinary, $persistent);
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}
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/**
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* Getting parsable output from ffmpeg binary
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*
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* @return string
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*/
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public function getOutput() {
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// Persistent opening
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if ($this->persistent == true && array_key_exists(get_class($this).$this->binary.$this->movieFile, self::$persistentBuffer)) {
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return self::$persistentBuffer[get_class($this).$this->binary.$this->movieFile];
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}
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// File doesn't exist
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if (!file_exists($this->movieFile)) {
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throw new Exception('Movie file not found', self::$EX_CODE_FILE_NOT_FOUND);
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}
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// Get information about file from ffmpeg
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$output = array();
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exec($this->binary.' -i '.escapeshellarg($this->movieFile).' 2>&1', $output, $retVar);
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$output = join(PHP_EOL, $output);
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// ffmpeg installed
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if (!preg_match('/FFmpeg version/i', $output)) {
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throw new Exception('FFmpeg is not installed on host server', self::$EX_CODE_NO_FFMPEG);
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}
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// Storing persistent opening
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if ($this->persistent == true) {
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self::$persistentBuffer[get_class($this).$this->binary.$this->movieFile] = $output;
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}
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return $output;
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}
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}
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