339 lines
9.5 KiB
PHP
339 lines
9.5 KiB
PHP
<?php
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/**
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* VideoDownload class.
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*/
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namespace Alltube;
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use Chain\Chain;
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use Symfony\Component\Process\ProcessBuilder;
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/**
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* Extract info about videos.
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*/
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class VideoDownload
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{
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/**
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* Config instance.
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*
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* @var Config
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*/
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private $config;
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/**
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* ProcessBuilder instance used to call Python.
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*
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* @var ProcessBuilder
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*/
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private $procBuilder;
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/**
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* VideoDownload constructor.
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*/
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public function __construct(Config $config = null)
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{
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if (isset($config)) {
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$this->config = $config;
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} else {
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$this->config = Config::getInstance();
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}
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$this->procBuilder = new ProcessBuilder();
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if (!is_file($this->config->youtubedl)) {
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throw new \Exception("Can't find youtube-dl at ".$this->config->youtubedl);
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} elseif (!is_file($this->config->python)) {
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throw new \Exception("Can't find Python at ".$this->config->python);
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}
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$this->procBuilder->setPrefix(
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array_merge(
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[$this->config->python, $this->config->youtubedl],
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$this->config->params
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)
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);
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}
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/**
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* List all extractors.
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*
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* @return string[] Extractors
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* */
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public function listExtractors()
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{
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return explode(PHP_EOL, trim($this->getProp(null, null, 'list-extractors')));
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}
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/**
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* Get a property from youtube-dl.
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*
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* @param string $url URL to parse
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* @param string $format Format
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* @param string $prop Property
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* @param string $password Video password
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*
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* @return string
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*/
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private function getProp($url, $format = null, $prop = 'dump-json', $password = null)
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{
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$this->procBuilder->setArguments(
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[
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'--'.$prop,
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$url,
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]
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);
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if (isset($format)) {
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$this->procBuilder->add('-f '.$format);
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}
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if (isset($password)) {
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$this->procBuilder->add('--video-password');
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$this->procBuilder->add($password);
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}
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$process = $this->procBuilder->getProcess();
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$process->run();
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if (!$process->isSuccessful()) {
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$errorOutput = trim($process->getErrorOutput());
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if ($errorOutput == 'ERROR: This video is protected by a password, use the --video-password option') {
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throw new PasswordException($errorOutput);
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} elseif (substr($errorOutput, 0, 21) == 'ERROR: Wrong password') {
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throw new \Exception('Wrong password');
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} else {
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throw new \Exception($errorOutput);
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}
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} else {
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return $process->getOutput();
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}
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}
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/**
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* Get all information about a video.
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*
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* @param string $url URL of page
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* @param string $format Format to use for the video
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* @param string $password Video password
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*
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* @return object Decoded JSON
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* */
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public function getJSON($url, $format = null, $password = null)
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{
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return json_decode($this->getProp($url, $format, 'dump-json', $password));
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}
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/**
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* Get URL of video from URL of page.
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*
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* @param string $url URL of page
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* @param string $format Format to use for the video
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* @param string $password Video password
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*
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* @return string URL of video
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* */
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public function getURL($url, $format = null, $password = null)
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{
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return $this->getProp($url, $format, 'get-url', $password);
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}
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/**
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* Get filename of video file from URL of page.
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*
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* @param string $url URL of page
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* @param string $format Format to use for the video
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* @param string $password Video password
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*
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* @return string Filename of extracted video
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* */
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public function getFilename($url, $format = null, $password = null)
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{
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return trim($this->getProp($url, $format, 'get-filename', $password));
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}
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/**
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* Get filename of audio from URL of page.
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*
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* @param string $url URL of page
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* @param string $format Format to use for the video
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* @param string $password Video password
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*
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* @return string Filename of converted audio file
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* */
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public function getAudioFilename($url, $format = null, $password = null)
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{
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return html_entity_decode(
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pathinfo(
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$this->getFilename($url, $format, $password),
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PATHINFO_FILENAME
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).'.mp3',
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ENT_COMPAT,
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'ISO-8859-1'
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);
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}
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/**
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* Add options to a process builder running rtmp.
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*
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* @param ProcessBuilder $builder Process builder
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* @param object $video Video object returned by youtube-dl
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*
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* @return ProcessBuilder
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*/
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private function addOptionsToRtmpProcess(ProcessBuilder $builder, $video)
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{
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foreach ([
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'url' => 'rtmp',
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'webpage_url' => 'pageUrl',
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'player_url' => 'swfVfy',
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'flash_version' => 'flashVer',
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'play_path' => 'playpath',
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'app' => 'app',
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] as $property => $option) {
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if (isset($video->{$property})) {
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$builder->add('--'.$option);
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$builder->add($video->{$property});
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}
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}
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return $builder;
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}
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/**
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* Get a process that runs rtmp in order to download a video.
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*
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* @param object $video Video object returned by youtube-dl
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*
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* @return \Symfony\Component\Process\Process Process
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*/
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private function getRtmpProcess($video)
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{
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if (!shell_exec('which '.$this->config->rtmpdump)) {
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throw(new \Exception('Can\'t find rtmpdump'));
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}
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$builder = new ProcessBuilder(
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[
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$this->config->rtmpdump,
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'-q',
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]
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);
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$builder = $this->addOptionsToRtmpProcess($builder, $video);
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if (isset($video->rtmp_conn)) {
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foreach ($video->rtmp_conn as $conn) {
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$builder->add('--conn');
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$builder->add($conn);
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}
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}
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return $builder->getProcess();
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}
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/**
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* Get a process that runs curl in order to download a video.
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*
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* @param object $video Video object returned by youtube-dl
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*
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* @return \Symfony\Component\Process\Process Process
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*/
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private function getCurlProcess($video)
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{
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if (!shell_exec('which '.$this->config->curl)) {
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throw(new \Exception('Can\'t find curl'));
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}
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$builder = ProcessBuilder::create(
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array_merge(
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[
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$this->config->curl,
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'--silent',
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'--location',
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'--user-agent', $video->http_headers->{'User-Agent'},
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$video->url,
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],
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$this->config->curl_params
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)
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);
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return $builder->getProcess();
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}
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/**
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* Get audio stream of converted video.
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*
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* @param string $url URL of page
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* @param string $format Format to use for the video
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* @param string $password Video password
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*
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* @return resource popen stream
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*/
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public function getAudioStream($url, $format, $password = null)
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{
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if (!shell_exec('which '.$this->config->avconv)) {
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throw(new \Exception('Can\'t find avconv or ffmpeg'));
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}
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$video = $this->getJSON($url, $format, $password);
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if (in_array($video->protocol, ['m3u8', 'm3u8_native'])) {
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throw(new \Exception('Conversion of M3U8 files is not supported.'));
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}
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//Vimeo needs a correct user-agent
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ini_set(
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'user_agent',
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$video->http_headers->{'User-Agent'}
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);
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$avconvProc = ProcessBuilder::create(
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[
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$this->config->avconv,
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'-v', 'quiet',
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'-i', '-',
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'-f', 'mp3',
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'-vn',
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'pipe:1',
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]
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);
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if (parse_url($video->url, PHP_URL_SCHEME) == 'rtmp') {
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$process = $this->getRtmpProcess($video);
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} else {
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$process = $this->getCurlProcess($video);
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}
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$chain = new Chain($process);
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$chain->add('|', $avconvProc);
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return popen($chain->getProcess()->getCommandLine(), 'r');
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}
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/**
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* Get video stream from an M3U playlist.
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*
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* @param \stdClass $video Video object returned by getJSON
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*
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* @return resource popen stream
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*/
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public function getM3uStream(\stdClass $video)
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{
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if (!shell_exec('which '.$this->config->avconv)) {
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throw(new \Exception('Can\'t find avconv or ffmpeg'));
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}
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$procBuilder = ProcessBuilder::create(
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[
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$this->config->avconv,
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'-v', 'quiet',
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'-i', $video->url,
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'-f', $video->ext,
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'-c', 'copy',
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'-bsf:a', 'aac_adtstoasc',
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'-movflags', 'frag_keyframe+empty_moov',
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'pipe:1',
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]
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);
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return popen($procBuilder->getProcess()->getCommandLine(), 'r');
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}
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/**
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* Get video stream from an RTMP video.
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*
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* @param \stdClass $video Video object returned by getJSON
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*
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* @return resource popen stream
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*/
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public function getRtmpStream(\stdClass $video)
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{
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return popen($this->getRtmpProcess($video)->getCommandLine(), 'r');
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}
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}
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