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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 HLSPlaylist |
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{ |
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/** |
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* @param string $filename |
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* @param array $reps |
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* @param string $manifests |
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* @param array $stream_info |
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*/ |
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public static function save(string $filename, array $reps, string $manifests, array $stream_info = []): void |
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{ |
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file_put_contents($filename, static::contents($reps, $manifests, $stream_info)); |
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} |
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/** |
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* @param array $reps |
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* @param string $manifests |
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* @param array $stream_info |
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* @return string |
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*/ |
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private static function contents(array $reps, string $manifests, array $stream_info = []): string |
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{ |
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$content = ["#EXTM3U", "#EXT-X-VERSION:3"]; |
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foreach ($reps as $rep) { |
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$content[] = static::streamInfo($rep, $stream_info); |
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$content[] = $manifests . "_" . $rep->getHeight() . "p.m3u8"; |
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} |
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return implode(PHP_EOL, $content); |
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} |
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/** |
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* @param Representation $rep |
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* @param array $extra |
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* @return string |
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*/ |
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private static function streamInfo(Representation $rep, array $extra = []): string |
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{ |
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$ext_stream = '#EXT-X-STREAM-INF:'; |
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$params = [ |
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"BANDWIDTH=" . $rep->getKiloBitrate() * 1024, |
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"RESOLUTION=" . $rep->getResize(), |
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"NAME=\"" . $rep->getHeight() . "\"" |
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]; |
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return $ext_stream . implode(",", array_merge($params, $extra)); |
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} |
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} |