jellyfin-server/MediaBrowser.Api/Playback/StreamState.cs
2017-05-29 08:35:59 -04:00

502 lines
14 KiB
C#

using MediaBrowser.Controller.Library;
using MediaBrowser.Model.Dlna;
using MediaBrowser.Model.Drawing;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.Logging;
using MediaBrowser.Model.MediaInfo;
using MediaBrowser.Model.Net;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Threading;
using MediaBrowser.Controller.MediaEncoding;
namespace MediaBrowser.Api.Playback
{
public class StreamState : EncodingJobInfo, IDisposable
{
private readonly ILogger _logger;
private readonly IMediaSourceManager _mediaSourceManager;
public string RequestedUrl { get; set; }
public StreamRequest Request
{
get { return (StreamRequest)BaseRequest; }
set
{
BaseRequest = value;
IsVideoRequest = VideoRequest != null;
}
}
public TranscodingThrottler TranscodingThrottler { get; set; }
public VideoStreamRequest VideoRequest
{
get { return Request as VideoStreamRequest; }
}
/// <summary>
/// Gets or sets the log file stream.
/// </summary>
/// <value>The log file stream.</value>
public Stream LogFileStream { get; set; }
public IDirectStreamProvider DirectStreamProvider { get; set; }
public string WaitForPath { get; set; }
public bool IsOutputVideo
{
get { return Request is VideoStreamRequest; }
}
public int SegmentLength
{
get
{
if (Request.SegmentLength.HasValue)
{
return Request.SegmentLength.Value;
}
if (string.Equals(OutputVideoCodec, "copy", StringComparison.OrdinalIgnoreCase))
{
var userAgent = UserAgent ?? string.Empty;
if (userAgent.IndexOf("AppleTV", StringComparison.OrdinalIgnoreCase) != -1 ||
userAgent.IndexOf("cfnetwork", StringComparison.OrdinalIgnoreCase) != -1 ||
userAgent.IndexOf("ipad", StringComparison.OrdinalIgnoreCase) != -1 ||
userAgent.IndexOf("iphone", StringComparison.OrdinalIgnoreCase) != -1 ||
userAgent.IndexOf("ipod", StringComparison.OrdinalIgnoreCase) != -1)
{
if (IsSegmentedLiveStream)
{
return 6;
}
return 10;
}
if (IsSegmentedLiveStream)
{
return 3;
}
return 6;
}
return 3;
}
}
public int MinSegments
{
get
{
if (Request.MinSegments.HasValue)
{
return Request.MinSegments.Value;
}
return SegmentLength >= 10 ? 2 : 3;
}
}
public int HlsListSize
{
get
{
return 0;
}
}
public string UserAgent { get; set; }
public StreamState(IMediaSourceManager mediaSourceManager, ILogger logger, TranscodingJobType transcodingType)
: base(logger, transcodingType)
{
_mediaSourceManager = mediaSourceManager;
_logger = logger;
}
public string MimeType { get; set; }
public bool EstimateContentLength { get; set; }
public TranscodeSeekInfo TranscodeSeekInfo { get; set; }
public long? EncodingDurationTicks { get; set; }
public string GetMimeType(string outputPath)
{
if (!string.IsNullOrEmpty(MimeType))
{
return MimeType;
}
return MimeTypes.GetMimeType(outputPath);
}
public bool EnableDlnaHeaders { get; set; }
public void Dispose()
{
DisposeTranscodingThrottler();
DisposeLiveStream();
DisposeLogStream();
DisposeIsoMount();
TranscodingJob = null;
}
private void DisposeLogStream()
{
if (LogFileStream != null)
{
try
{
LogFileStream.Dispose();
}
catch (Exception ex)
{
_logger.ErrorException("Error disposing log stream", ex);
}
LogFileStream = null;
}
}
private void DisposeTranscodingThrottler()
{
if (TranscodingThrottler != null)
{
try
{
TranscodingThrottler.Dispose();
}
catch (Exception ex)
{
_logger.ErrorException("Error disposing TranscodingThrottler", ex);
}
TranscodingThrottler = null;
}
}
private async void DisposeLiveStream()
{
if (MediaSource.RequiresClosing && string.IsNullOrWhiteSpace(Request.LiveStreamId) && !string.IsNullOrWhiteSpace(MediaSource.LiveStreamId))
{
try
{
await _mediaSourceManager.CloseLiveStream(MediaSource.LiveStreamId).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.ErrorException("Error closing media source", ex);
}
}
}
public string OutputFilePath { get; set; }
public string ActualOutputVideoCodec
{
get
{
var codec = OutputVideoCodec;
if (string.Equals(codec, "copy", StringComparison.OrdinalIgnoreCase))
{
var stream = VideoStream;
if (stream != null)
{
return stream.Codec;
}
return null;
}
return codec;
}
}
public string ActualOutputAudioCodec
{
get
{
var codec = OutputAudioCodec;
if (string.Equals(codec, "copy", StringComparison.OrdinalIgnoreCase))
{
var stream = AudioStream;
if (stream != null)
{
return stream.Codec;
}
return null;
}
return codec;
}
}
public DeviceProfile DeviceProfile { get; set; }
public int? TotalOutputBitrate
{
get
{
return (OutputAudioBitrate ?? 0) + (OutputVideoBitrate ?? 0);
}
}
public int? OutputWidth
{
get
{
if (VideoStream != null && VideoStream.Width.HasValue && VideoStream.Height.HasValue)
{
var size = new ImageSize
{
Width = VideoStream.Width.Value,
Height = VideoStream.Height.Value
};
var newSize = DrawingUtils.Resize(size,
VideoRequest.Width,
VideoRequest.Height,
VideoRequest.MaxWidth,
VideoRequest.MaxHeight);
return Convert.ToInt32(newSize.Width);
}
if (VideoRequest == null)
{
return null;
}
return VideoRequest.MaxWidth ?? VideoRequest.Width;
}
}
public int? OutputHeight
{
get
{
if (VideoStream != null && VideoStream.Width.HasValue && VideoStream.Height.HasValue)
{
var size = new ImageSize
{
Width = VideoStream.Width.Value,
Height = VideoStream.Height.Value
};
var newSize = DrawingUtils.Resize(size,
VideoRequest.Width,
VideoRequest.Height,
VideoRequest.MaxWidth,
VideoRequest.MaxHeight);
return Convert.ToInt32(newSize.Height);
}
if (VideoRequest == null)
{
return null;
}
return VideoRequest.MaxHeight ?? VideoRequest.Height;
}
}
/// <summary>
/// Predicts the audio sample rate that will be in the output stream
/// </summary>
public int? TargetVideoBitDepth
{
get
{
var stream = VideoStream;
return stream == null || !Request.Static ? null : stream.BitDepth;
}
}
/// <summary>
/// Gets the target reference frames.
/// </summary>
/// <value>The target reference frames.</value>
public int? TargetRefFrames
{
get
{
var stream = VideoStream;
return stream == null || !Request.Static ? null : stream.RefFrames;
}
}
public int? TargetVideoStreamCount
{
get
{
if (Request.Static)
{
return GetMediaStreamCount(MediaStreamType.Video, int.MaxValue);
}
return GetMediaStreamCount(MediaStreamType.Video, 1);
}
}
public int? TargetAudioStreamCount
{
get
{
if (Request.Static)
{
return GetMediaStreamCount(MediaStreamType.Audio, int.MaxValue);
}
return GetMediaStreamCount(MediaStreamType.Audio, 1);
}
}
public bool? IsTargetAnamorphic
{
get
{
if (Request.Static)
{
return VideoStream == null ? null : VideoStream.IsAnamorphic;
}
return false;
}
}
public bool? IsTargetInterlaced
{
get
{
if (Request.Static)
{
return VideoStream == null ? (bool?)null : VideoStream.IsInterlaced;
}
if (DeInterlace)
{
return false;
}
return VideoStream == null ? (bool?)null : VideoStream.IsInterlaced;
}
}
private int? GetMediaStreamCount(MediaStreamType type, int limit)
{
var count = MediaSource.GetStreamCount(type);
if (count.HasValue)
{
count = Math.Min(count.Value, limit);
}
return count;
}
/// <summary>
/// Predicts the audio sample rate that will be in the output stream
/// </summary>
public float? TargetFramerate
{
get
{
var stream = VideoStream;
var requestedFramerate = VideoRequest.MaxFramerate ?? VideoRequest.Framerate;
return requestedFramerate.HasValue && !Request.Static
? requestedFramerate
: stream == null ? null : stream.AverageFrameRate ?? stream.RealFrameRate;
}
}
public TransportStreamTimestamp TargetTimestamp
{
get
{
var defaultValue = string.Equals(OutputContainer, "m2ts", StringComparison.OrdinalIgnoreCase) ?
TransportStreamTimestamp.Valid :
TransportStreamTimestamp.None;
return !Request.Static
? defaultValue
: InputTimestamp;
}
}
/// <summary>
/// Predicts the audio sample rate that will be in the output stream
/// </summary>
public int? TargetPacketLength
{
get
{
var stream = VideoStream;
return !Request.Static
? null
: stream == null ? null : stream.PacketLength;
}
}
/// <summary>
/// Predicts the audio sample rate that will be in the output stream
/// </summary>
public string TargetVideoProfile
{
get
{
var stream = VideoStream;
return !string.IsNullOrEmpty(VideoRequest.Profile) && !Request.Static
? VideoRequest.Profile
: stream == null ? null : stream.Profile;
}
}
public string TargetVideoCodecTag
{
get
{
var stream = VideoStream;
return !Request.Static
? null
: stream == null ? null : stream.CodecTag;
}
}
public bool? IsTargetAVC
{
get
{
if (Request.Static)
{
return VideoStream == null ? null : VideoStream.IsAVC;
}
return true;
}
}
public TranscodingJob TranscodingJob;
public override void ReportTranscodingProgress(TimeSpan? transcodingPosition, float? framerate, double? percentComplete, long? bytesTranscoded, int? bitRate)
{
ApiEntryPoint.Instance.ReportTranscodingProgress(TranscodingJob, this, transcodingPosition, framerate, percentComplete, bytesTranscoded, bitRate);
}
}
}