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<?php |
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/** |
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* Copyright 2019 Amin Yazdanpanah<http://www.aminyazdanpanah.com>. |
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* |
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* Licensed under the MIT License; |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* https://opensource.org/licenses/MIT |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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namespace AYazdanpanah\FFMpegStreaming; |
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class ExportHLSPlaylist |
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{ |
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/** |
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* @param $filename |
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* @param $representations |
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* @param $basename |
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*/ |
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public static function savePlayList($filename, $representations, $basename) |
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{ |
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file_put_contents($filename, static::generateContents($representations, $basename)); |
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} |
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/** |
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* @param $representations |
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* @param $basename |
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* @return string |
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*/ |
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private static function generateContents($representations, $basename) |
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{ |
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$content[] = "#EXTM3U"; |
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$content[] = "#EXT-X-VERSION:3"; |
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foreach ($representations as $representation) { |
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if ($representation instanceof Representation) { |
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$content[] = "#EXT-X-STREAM-INF:BANDWIDTH=" . $representation->getKiloBitrate() * 1024 . ",RESOLUTION=" . $representation->getResize(); |
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$content[] = $basename . "_" . $representation->getHeight() . "p.m3u8"; |
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} |
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} |
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return implode(PHP_EOL, $content); |
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} |
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} |