DynamicHLSPlaylist parseLines always return null

[sandyh90]

Hi,

I have a problem while starting to encode my video using this package because DynamicHLSPlaylist::parseLines() value always return null did i do something wrong?

and this is my code and debug output.

Code

$withoutFileExt = preg_replace('/\\.[^.\\s]{3,4}$/', '', $getVideoData->video_file);
                        $format = new X264('aac', 'libx264');
                        $format->setAdditionalParameters(['-c:v', 'h264_amf']);
                        $lowBitrate = ($format)->setKiloBitrate(250);
                        $midBitrate = ($format)->setKiloBitrate(500);
                        $highBitrate = ($format)->setKiloBitrate(1000);
                        FFMpeg::fromDisk('public')
                            ->open("video/{$getVideoData->folder_video}/{$getVideoData->video_file}")
                            ->exportForHLS()
                            ->addFormat($lowBitrate)
                            ->addFormat($midBitrate)
                            ->addFormat($highBitrate)
                            ->save("{$withoutFileExt}.m3u8");

Output

TypeError: ProtoneMedia\LaravelFFMpeg\Http\DynamicHLSPlaylist::parseLines(): Argument #1 ($lines) must be of type string, null given, called in D:\Server\VideoEncoder\vendor\pbmedia\laravel-ffmpeg\src\Exporters\HLSPlaylistGenerator.php on line 30 and defined in D:\Server\VideoEncoder\vendor\pbmedia\laravel-ffmpeg\src\Http\DynamicHLSPlaylist.php:157
Stack trace:
#0 D:\Server\VideoEncoder\vendor\pbmedia\laravel-ffmpeg\src\Exporters\HLSPlaylistGenerator.php(30): ProtoneMedia\LaravelFFMpeg\Http\DynamicHLSPlaylist::parseLines(NULL)
#1 D:\Server\VideoEncoder\vendor\pbmedia\laravel-ffmpeg\src\Exporters\HLSPlaylistGenerator.php(47): ProtoneMedia\LaravelFFMpeg\Exporters\HLSPlaylistGenerator->getStreamInfoLine(Object(ProtoneMedia\LaravelFFMpeg\Filesystem\Media), '0')
#2 [internal function]: ProtoneMedia\LaravelFFMpeg\Exporters\HLSPlaylistGenerator->ProtoneMedia\LaravelFFMpeg\Exporters\{closure}(Object(ProtoneMedia\LaravelFFMpeg\Filesystem\Media), 0)
#3 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Collections\Arr.php(560): array_map(Object(Closure), Array, Array)
#4 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Collections\Collection.php(719): Illuminate\Support\Arr::map(Array, Object(Closure))
#5 D:\Server\VideoEncoder\vendor\pbmedia\laravel-ffmpeg\src\Exporters\HLSPlaylistGenerator.php(57): Illuminate\Support\Collection->map(Object(Closure))
#6 D:\Server\VideoEncoder\vendor\pbmedia\laravel-ffmpeg\src\Exporters\HLSExporter.php(309): ProtoneMedia\LaravelFFMpeg\Exporters\HLSPlaylistGenerator->get(Array, Object(ProtoneMedia\LaravelFFMpeg\Drivers\PHPFFMpeg))
#7 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Collections\Traits\EnumeratesValues.php(715): ProtoneMedia\LaravelFFMpeg\Exporters\HLSExporter->ProtoneMedia\LaravelFFMpeg\Exporters\{closure}(Object(Illuminate\Support\Collection))
#8 D:\Server\VideoEncoder\vendor\pbmedia\laravel-ffmpeg\src\Exporters\HLSExporter.php(320): Illuminate\Support\Collection->pipe(Object(Closure))
#9 D:\Server\VideoEncoder\app\Jobs\TranscodingVideoData.php(67): ProtoneMedia\LaravelFFMpeg\Exporters\HLSExporter->save('mediaData/b6fea...')
#10 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Container\BoundMethod.php(36): App\Jobs\TranscodingVideoData->handle()
#11 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Container\Util.php(41): Illuminate\Container\BoundMethod::Illuminate\Container\{closure}()
#12 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Container\BoundMethod.php(93): Illuminate\Container\Util::unwrapIfClosure(Object(Closure))
#13 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Container\BoundMethod.php(37): Illuminate\Container\BoundMethod::callBoundMethod(Object(Illuminate\Foundation\Application), Array, Object(Closure))
#14 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Container\Container.php(651): Illuminate\Container\BoundMethod::call(Object(Illuminate\Foundation\Application), Array, Array, NULL)
#15 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Bus\Dispatcher.php(128): Illuminate\Container\Container->call(Array)
#16 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(141): Illuminate\Bus\Dispatcher->Illuminate\Bus\{closure}(Object(App\Jobs\TranscodingVideoData))
#17 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(116): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(App\Jobs\TranscodingVideoData))
#18 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Bus\Dispatcher.php(132): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#19 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Queue\CallQueuedHandler.php(124): Illuminate\Bus\Dispatcher->dispatchNow(Object(App\Jobs\TranscodingVideoData), false)
#20 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(141): Illuminate\Queue\CallQueuedHandler->Illuminate\Queue\{closure}(Object(App\Jobs\TranscodingVideoData))
#21 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(116): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(App\Jobs\TranscodingVideoData))
#22 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Queue\CallQueuedHandler.php(126): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#23 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Queue\CallQueuedHandler.php(70): Illuminate\Queue\CallQueuedHandler->dispatchThroughMiddleware(Object(Illuminate\Queue\Jobs\DatabaseJob), Object(App\Jobs\TranscodingVideoData))
#24 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Queue\Jobs\Job.php(98): Illuminate\Queue\CallQueuedHandler->call(Object(Illuminate\Queue\Jobs\DatabaseJob), Array)
#25 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Queue\Worker.php(425): Illuminate\Queue\Jobs\Job->fire()
#26 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Queue\Worker.php(375): Illuminate\Queue\Worker->process('database', Object(Illuminate\Queue\Jobs\DatabaseJob), Object(Illuminate\Queue\WorkerOptions))
#27 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Queue\Worker.php(173): Illuminate\Queue\Worker->runJob(Object(Illuminate\Queue\Jobs\DatabaseJob), 'database', Object(Illuminate\Queue\WorkerOptions))
#28 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Queue\Console\WorkCommand.php(150): Illuminate\Queue\Worker->daemon('database', 'transcode-video', Object(Illuminate\Queue\WorkerOptions))
#29 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Queue\Console\WorkCommand.php(134): Illuminate\Queue\Console\WorkCommand->runWorker('database', 'transcode-video')
#30 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Container\BoundMethod.php(36): Illuminate\Queue\Console\WorkCommand->handle()
#31 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Container\Util.php(41): Illuminate\Container\BoundMethod::Illuminate\Container\{closure}()
#32 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Container\BoundMethod.php(93): Illuminate\Container\Util::unwrapIfClosure(Object(Closure))
#33 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Container\BoundMethod.php(37): Illuminate\Container\BoundMethod::callBoundMethod(Object(Illuminate\Foundation\Application), Array, Object(Closure))
#34 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Container\Container.php(651): Illuminate\Container\BoundMethod::call(Object(Illuminate\Foundation\Application), Array, Array, NULL)
#35 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Console\Command.php(144): Illuminate\Container\Container->call(Array)
#36 D:\Server\VideoEncoder\vendor\symfony\console\Command\Command.php(291): Illuminate\Console\Command->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Illuminate\Console\OutputStyle))
#37 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Console\Command.php(126): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Illuminate\Console\OutputStyle))
#38 D:\Server\VideoEncoder\vendor\symfony\console\Application.php(1014): Illuminate\Console\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#39 D:\Server\VideoEncoder\vendor\symfony\console\Application.php(301): Symfony\Component\Console\Application->doRunCommand(Object(Illuminate\Queue\Console\WorkCommand), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#40 D:\Server\VideoEncoder\vendor\symfony\console\Application.php(171): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#41 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Console\Application.php(102): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#42 D:\Server\VideoEncoder\vendor\laravel\framework\src\Illuminate\Foundation\Console\Kernel.php(155): Illuminate\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#43 D:\Server\VideoEncoder\artisan(37): Illuminate\Foundation\Console\Kernel->handle(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#44 {main}

while i trace the error where caught in this method

private function getStreamInfoLine(Media $segmentPlaylistMedia, string $key): string
    {
        $segmentPlaylist = $segmentPlaylistMedia->getDisk()->get(
            $segmentPlaylistMedia->getDirectory() . HLSExporter::generateTemporarySegmentPlaylistFilename($key)
        );

        $lines = DynamicHLSPlaylist::parseLines($segmentPlaylist)->filter();

        return $lines->get($lines->search($segmentPlaylistMedia->getFilename()) - 1);
    }