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using System;
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using System.Threading;
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using System.Threading.Tasks;
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using MediaBrowser.Common.Net;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Model.Dto;
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using MediaBrowser.Model.IO;
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using Microsoft.Extensions.Logging;
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namespace Emby.Server.Implementations.LiveTv.EmbyTV
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{
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public class DirectRecorder : IRecorder
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{
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private readonly ILogger _logger;
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private readonly IHttpClient _httpClient;
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private readonly IFileSystem _fileSystem;
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private readonly IStreamHelper _streamHelper;
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public DirectRecorder(ILogger logger, IHttpClient httpClient, IFileSystem fileSystem, IStreamHelper streamHelper)
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{
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_logger = logger;
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_httpClient = httpClient;
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_fileSystem = fileSystem;
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_streamHelper = streamHelper;
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}
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public string GetOutputPath(MediaSourceInfo mediaSource, string targetFile)
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{
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return targetFile;
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}
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public Task Record(IDirectStreamProvider directStreamProvider, MediaSourceInfo mediaSource, string targetFile, TimeSpan duration, Action onStarted, CancellationToken cancellationToken)
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{
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if (directStreamProvider != null)
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{
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return RecordFromDirectStreamProvider(directStreamProvider, targetFile, duration, onStarted, cancellationToken);
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}
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return RecordFromMediaSource(mediaSource, targetFile, duration, onStarted, cancellationToken);
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}
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private async Task RecordFromDirectStreamProvider(IDirectStreamProvider directStreamProvider, string targetFile, TimeSpan duration, Action onStarted, CancellationToken cancellationToken)
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{
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_fileSystem.CreateDirectory(_fileSystem.GetDirectoryName(targetFile));
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using (var output = _fileSystem.GetFileStream(targetFile, FileOpenMode.Create, FileAccessMode.Write, FileShareMode.Read))
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{
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onStarted();
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_logger.LogInformation("Copying recording stream to file {0}", targetFile);
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// The media source is infinite so we need to handle stopping ourselves
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var durationToken = new CancellationTokenSource(duration);
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cancellationToken = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, durationToken.Token).Token;
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await directStreamProvider.CopyToAsync(output, cancellationToken).ConfigureAwait(false);
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}
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_logger.LogInformation("Recording completed to file {0}", targetFile);
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}
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private async Task RecordFromMediaSource(MediaSourceInfo mediaSource, string targetFile, TimeSpan duration, Action onStarted, CancellationToken cancellationToken)
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{
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var httpRequestOptions = new HttpRequestOptions
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{
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Url = mediaSource.Path,
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BufferContent = false,
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// Some remote urls will expect a user agent to be supplied
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UserAgent = "Emby/3.0",
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// Shouldn't matter but may cause issues
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EnableHttpCompression = false
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};
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using (var response = await _httpClient.SendAsync(httpRequestOptions, "GET").ConfigureAwait(false))
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{
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_logger.LogInformation("Opened recording stream from tuner provider");
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_fileSystem.CreateDirectory(_fileSystem.GetDirectoryName(targetFile));
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using (var output = _fileSystem.GetFileStream(targetFile, FileOpenMode.Create, FileAccessMode.Write, FileShareMode.Read))
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{
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onStarted();
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_logger.LogInformation("Copying recording stream to file {0}", targetFile);
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// The media source if infinite so we need to handle stopping ourselves
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var durationToken = new CancellationTokenSource(duration);
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cancellationToken = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, durationToken.Token).Token;
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await _streamHelper.CopyUntilCancelled(response.Content, output, 81920, cancellationToken).ConfigureAwait(false);
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}
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}
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_logger.LogInformation("Recording completed to file {0}", targetFile);
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}
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}
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}
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