40 lines
1.1 KiB
PHP
40 lines
1.1 KiB
PHP
<?php
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/**
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* YoutubeStream class.
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*/
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namespace Alltube\Stream;
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use Alltube\Video;
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use GuzzleHttp\Psr7\AppendStream;
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/**
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* Stream that downloads a video in chunks.
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* This is required because Youtube throttles the download speed on chunks larger than 10M.
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*/
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class YoutubeStream extends AppendStream
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{
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/**
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* YoutubeStream constructor.
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*
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* @param Video $video Video to stream
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*/
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public function __construct(Video $video)
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{
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parent::__construct();
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$stream = $video->getHttpResponse();
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$contentLenghtHeader = $stream->getHeader('Content-Length');
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$rangeStart = 0;
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while ($rangeStart < $contentLenghtHeader[0]) {
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$rangeEnd = $rangeStart + $video->downloader_options->http_chunk_size;
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if ($rangeEnd >= $contentLenghtHeader[0]) {
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$rangeEnd = $contentLenghtHeader[0] - 1;
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}
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$response = $video->getHttpResponse(['Range' => 'bytes='.$rangeStart.'-'.$rangeEnd]);
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$this->addStream(new YoutubeChunkStream($response));
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$rangeStart = $rangeEnd + 1;
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}
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}
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}
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