jellyfin/Emby.Server.Implementations/LiveTv/EmbyTV/DirectRecorder.cs
2022-12-05 15:01:13 +01:00

104 lines
4.7 KiB
C#

#pragma warning disable CS1591
using System;
using System.IO;
using System.Net.Http;
using System.Threading;
using System.Threading.Tasks;
using Jellyfin.Api.Helpers;
using MediaBrowser.Common.Net;
using MediaBrowser.Controller.Library;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.IO;
using Microsoft.Extensions.Logging;
namespace Emby.Server.Implementations.LiveTv.EmbyTV
{
public class DirectRecorder : IRecorder
{
private readonly ILogger _logger;
private readonly IHttpClientFactory _httpClientFactory;
private readonly IStreamHelper _streamHelper;
public DirectRecorder(ILogger logger, IHttpClientFactory httpClientFactory, IStreamHelper streamHelper)
{
_logger = logger;
_httpClientFactory = httpClientFactory;
_streamHelper = streamHelper;
}
public string GetOutputPath(MediaSourceInfo mediaSource, string targetFile)
{
return targetFile;
}
public Task Record(IDirectStreamProvider? directStreamProvider, MediaSourceInfo mediaSource, string targetFile, TimeSpan duration, Action onStarted, CancellationToken cancellationToken)
{
if (directStreamProvider is not null)
{
return RecordFromDirectStreamProvider(directStreamProvider, targetFile, duration, onStarted, cancellationToken);
}
return RecordFromMediaSource(mediaSource, targetFile, duration, onStarted, cancellationToken);
}
private async Task RecordFromDirectStreamProvider(IDirectStreamProvider directStreamProvider, string targetFile, TimeSpan duration, Action onStarted, CancellationToken cancellationToken)
{
Directory.CreateDirectory(Path.GetDirectoryName(targetFile) ?? throw new ArgumentException("Path can't be a root directory.", nameof(targetFile)));
await using (var output = new FileStream(targetFile, FileMode.CreateNew, FileAccess.Write, FileShare.Read, IODefaults.FileStreamBufferSize, FileOptions.Asynchronous))
{
onStarted();
_logger.LogInformation("Copying recording to file {FilePath}", targetFile);
// The media source is infinite so we need to handle stopping ourselves
using var durationToken = new CancellationTokenSource(duration);
using var cancellationTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, durationToken.Token);
var linkedCancellationToken = cancellationTokenSource.Token;
var fileStream = new ProgressiveFileStream(directStreamProvider.GetStream());
await using (fileStream.ConfigureAwait(false))
{
await _streamHelper.CopyToAsync(
fileStream,
output,
IODefaults.CopyToBufferSize,
1000,
linkedCancellationToken).ConfigureAwait(false);
}
}
_logger.LogInformation("Recording completed: {FilePath}", targetFile);
}
private async Task RecordFromMediaSource(MediaSourceInfo mediaSource, string targetFile, TimeSpan duration, Action onStarted, CancellationToken cancellationToken)
{
using var response = await _httpClientFactory.CreateClient(NamedClient.Default)
.GetAsync(mediaSource.Path, HttpCompletionOption.ResponseHeadersRead, cancellationToken).ConfigureAwait(false);
_logger.LogInformation("Opened recording stream from tuner provider");
Directory.CreateDirectory(Path.GetDirectoryName(targetFile) ?? throw new ArgumentException("Path can't be a root directory.", nameof(targetFile)));
await using var output = new FileStream(targetFile, FileMode.CreateNew, FileAccess.Write, FileShare.Read, IODefaults.CopyToBufferSize, FileOptions.Asynchronous);
onStarted();
_logger.LogInformation("Copying recording stream to file {0}", targetFile);
// The media source if infinite so we need to handle stopping ourselves
using var durationToken = new CancellationTokenSource(duration);
using var linkedCancellationToken = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, durationToken.Token);
cancellationToken = linkedCancellationToken.Token;
await _streamHelper.CopyUntilCancelled(
await response.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false),
output,
IODefaults.CopyToBufferSize,
cancellationToken).ConfigureAwait(false);
_logger.LogInformation("Recording completed to file {0}", targetFile);
}
}
}