520 lines
17 KiB
C#
520 lines
17 KiB
C#
using MediaBrowser.Model.Drawing;
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using MediaBrowser.Model.Dto;
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using MediaBrowser.Model.Entities;
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using MediaBrowser.Model.Extensions;
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using MediaBrowser.Model.MediaInfo;
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using MediaBrowser.Model.Session;
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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namespace MediaBrowser.Model.Dlna
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{
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/// <summary>
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/// Class StreamInfo.
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/// </summary>
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public class StreamInfo
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{
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public string ItemId { get; set; }
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public PlayMethod PlayMethod { get; set; }
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public DlnaProfileType MediaType { get; set; }
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public string Container { get; set; }
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public string Protocol { get; set; }
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public long StartPositionTicks { get; set; }
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public string VideoCodec { get; set; }
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public string VideoProfile { get; set; }
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public string AudioCodec { get; set; }
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public int? AudioStreamIndex { get; set; }
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public int? SubtitleStreamIndex { get; set; }
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public int? MaxAudioChannels { get; set; }
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public int? AudioBitrate { get; set; }
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public int? VideoBitrate { get; set; }
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public int? VideoLevel { get; set; }
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public int? MaxWidth { get; set; }
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public int? MaxHeight { get; set; }
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public int? MaxVideoBitDepth { get; set; }
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public int? MaxRefFrames { get; set; }
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public float? MaxFramerate { get; set; }
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public string DeviceProfileId { get; set; }
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public string DeviceId { get; set; }
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public long? RunTimeTicks { get; set; }
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public TranscodeSeekInfo TranscodeSeekInfo { get; set; }
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public bool EstimateContentLength { get; set; }
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public MediaSourceInfo MediaSource { get; set; }
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public SubtitleDeliveryMethod SubtitleDeliveryMethod { get; set; }
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public string SubtitleFormat { get; set; }
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public string MediaSourceId
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{
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get
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{
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return MediaSource == null ? null : MediaSource.Id;
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}
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}
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public bool IsDirectStream
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{
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get {
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return PlayMethod == PlayMethod.DirectStream ||
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PlayMethod == PlayMethod.DirectPlay;
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}
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}
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public string ToUrl(string baseUrl)
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{
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return ToDlnaUrl(baseUrl);
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}
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public string ToDlnaUrl(string baseUrl)
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{
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if (PlayMethod == PlayMethod.DirectPlay)
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{
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return MediaSource.Path;
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}
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if (string.IsNullOrEmpty(baseUrl))
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{
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throw new ArgumentNullException(baseUrl);
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}
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string dlnaCommand = BuildDlnaParam(this);
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string extension = string.IsNullOrEmpty(Container) ? string.Empty : "." + Container;
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baseUrl = baseUrl.TrimEnd('/');
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if (MediaType == DlnaProfileType.Audio)
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{
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return string.Format("{0}/audio/{1}/stream{2}?{3}", baseUrl, ItemId, extension, dlnaCommand);
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}
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if (StringHelper.EqualsIgnoreCase(Protocol, "hls"))
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{
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return string.Format("{0}/videos/{1}/master.m3u8?{2}", baseUrl, ItemId, dlnaCommand);
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}
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return string.Format("{0}/videos/{1}/stream{2}?{3}", baseUrl, ItemId, extension, dlnaCommand);
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}
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private static string BuildDlnaParam(StreamInfo item)
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{
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List<string> list = new List<string>
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{
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item.DeviceProfileId ?? string.Empty,
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item.DeviceId ?? string.Empty,
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item.MediaSourceId ?? string.Empty,
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(item.IsDirectStream).ToString().ToLower(),
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item.VideoCodec ?? string.Empty,
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item.AudioCodec ?? string.Empty,
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item.AudioStreamIndex.HasValue ? StringHelper.ToStringCultureInvariant(item.AudioStreamIndex.Value) : string.Empty,
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item.SubtitleStreamIndex.HasValue && item.SubtitleDeliveryMethod != SubtitleDeliveryMethod.External ? StringHelper.ToStringCultureInvariant(item.SubtitleStreamIndex.Value) : string.Empty,
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item.VideoBitrate.HasValue ? StringHelper.ToStringCultureInvariant(item.VideoBitrate.Value) : string.Empty,
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item.AudioBitrate.HasValue ? StringHelper.ToStringCultureInvariant(item.AudioBitrate.Value) : string.Empty,
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item.MaxAudioChannels.HasValue ? StringHelper.ToStringCultureInvariant(item.MaxAudioChannels.Value) : string.Empty,
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item.MaxFramerate.HasValue ? StringHelper.ToStringCultureInvariant(item.MaxFramerate.Value) : string.Empty,
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item.MaxWidth.HasValue ? StringHelper.ToStringCultureInvariant(item.MaxWidth.Value) : string.Empty,
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item.MaxHeight.HasValue ? StringHelper.ToStringCultureInvariant(item.MaxHeight.Value) : string.Empty,
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StringHelper.ToStringCultureInvariant(item.StartPositionTicks),
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item.VideoLevel.HasValue ? StringHelper.ToStringCultureInvariant(item.VideoLevel.Value) : string.Empty
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};
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list.Add(item.IsDirectStream ? string.Empty : DateTime.UtcNow.Ticks.ToString(CultureInfo.InvariantCulture));
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list.Add(item.MaxRefFrames.HasValue ? StringHelper.ToStringCultureInvariant(item.MaxRefFrames.Value) : string.Empty);
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list.Add(item.MaxVideoBitDepth.HasValue ? StringHelper.ToStringCultureInvariant(item.MaxVideoBitDepth.Value) : string.Empty);
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list.Add(item.VideoProfile ?? string.Empty);
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return string.Format("Params={0}", string.Join(";", list.ToArray()));
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}
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public List<SubtitleStreamInfo> GetExternalSubtitles(string baseUrl)
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{
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if (string.IsNullOrEmpty(baseUrl))
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{
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throw new ArgumentNullException(baseUrl);
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}
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List<SubtitleStreamInfo> list = new List<SubtitleStreamInfo>();
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if (SubtitleDeliveryMethod != SubtitleDeliveryMethod.External)
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{
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return list;
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}
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if (!SubtitleStreamIndex.HasValue)
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{
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return list;
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}
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// HLS will preserve timestamps so we can just grab the full subtitle stream
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long startPositionTicks = StringHelper.EqualsIgnoreCase(Protocol, "hls")
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? 0
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: StartPositionTicks;
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string url = string.Format("{0}/Videos/{1}/{2}/Subtitles/{3}/{4}/Stream.{5}",
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baseUrl,
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ItemId,
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MediaSourceId,
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StringHelper.ToStringCultureInvariant(SubtitleStreamIndex.Value),
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StringHelper.ToStringCultureInvariant(startPositionTicks),
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SubtitleFormat);
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foreach (MediaStream stream in MediaSource.MediaStreams)
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{
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if (stream.Type == MediaStreamType.Subtitle && stream.Index == SubtitleStreamIndex.Value)
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{
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list.Add(new SubtitleStreamInfo
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{
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Url = url,
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IsForced = stream.IsForced,
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Language = stream.Language,
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Name = stream.Language ?? "Unknown",
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Format = SubtitleFormat
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});
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}
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}
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return list;
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}
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/// <summary>
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/// Returns the audio stream that will be used
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/// </summary>
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public MediaStream TargetAudioStream
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{
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get
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{
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if (MediaSource != null)
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{
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if (AudioStreamIndex.HasValue)
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{
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foreach (MediaStream i in MediaSource.MediaStreams)
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{
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if (i.Index == AudioStreamIndex.Value && i.Type == MediaStreamType.Audio)
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return i;
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}
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return null;
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}
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return MediaSource.DefaultAudioStream;
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}
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return null;
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}
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}
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/// <summary>
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/// Returns the video stream that will be used
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/// </summary>
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public MediaStream TargetVideoStream
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{
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get
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{
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if (MediaSource != null)
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{
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return MediaSource.VideoStream;
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}
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return null;
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}
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}
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/// <summary>
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/// Predicts the audio sample rate that will be in the output stream
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/// </summary>
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public int? TargetAudioSampleRate
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{
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get
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{
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MediaStream stream = TargetAudioStream;
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return stream == null ? null : stream.SampleRate;
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}
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}
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/// <summary>
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/// Predicts the audio sample rate that will be in the output stream
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/// </summary>
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public int? TargetVideoBitDepth
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{
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get
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{
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MediaStream stream = TargetVideoStream;
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return stream == null || !IsDirectStream ? null : stream.BitDepth;
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}
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}
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/// <summary>
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/// Gets the target reference frames.
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/// </summary>
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/// <value>The target reference frames.</value>
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public int? TargetRefFrames
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{
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get
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{
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MediaStream stream = TargetVideoStream;
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return stream == null || !IsDirectStream ? null : stream.RefFrames;
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}
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}
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/// <summary>
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/// Predicts the audio sample rate that will be in the output stream
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/// </summary>
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public float? TargetFramerate
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{
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get
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{
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MediaStream stream = TargetVideoStream;
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return MaxFramerate.HasValue && !IsDirectStream
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? MaxFramerate
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: stream == null ? null : stream.AverageFrameRate ?? stream.RealFrameRate;
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}
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}
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/// <summary>
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/// Predicts the audio sample rate that will be in the output stream
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/// </summary>
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public double? TargetVideoLevel
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{
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get
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{
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MediaStream stream = TargetVideoStream;
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return VideoLevel.HasValue && !IsDirectStream
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? VideoLevel
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: stream == null ? null : stream.Level;
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}
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}
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/// <summary>
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/// Predicts the audio sample rate that will be in the output stream
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/// </summary>
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public int? TargetPacketLength
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{
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get
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{
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MediaStream stream = TargetVideoStream;
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return !IsDirectStream
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? null
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: stream == null ? null : stream.PacketLength;
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}
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}
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/// <summary>
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/// Predicts the audio sample rate that will be in the output stream
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/// </summary>
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public string TargetVideoProfile
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{
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get
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{
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MediaStream stream = TargetVideoStream;
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return !string.IsNullOrEmpty(VideoProfile) && !IsDirectStream
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? VideoProfile
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: stream == null ? null : stream.Profile;
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}
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}
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/// <summary>
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/// Predicts the audio bitrate that will be in the output stream
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/// </summary>
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public int? TargetAudioBitrate
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{
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get
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{
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MediaStream stream = TargetAudioStream;
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return AudioBitrate.HasValue && !IsDirectStream
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? AudioBitrate
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: stream == null ? null : stream.BitRate;
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}
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}
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/// <summary>
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/// Predicts the audio channels that will be in the output stream
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/// </summary>
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public int? TargetAudioChannels
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{
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get
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{
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MediaStream stream = TargetAudioStream;
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int? streamChannels = stream == null ? null : stream.Channels;
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return MaxAudioChannels.HasValue && !IsDirectStream
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? (streamChannels.HasValue ? Math.Min(MaxAudioChannels.Value, streamChannels.Value) : MaxAudioChannels.Value)
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: streamChannels;
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}
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}
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/// <summary>
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/// Predicts the audio codec that will be in the output stream
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/// </summary>
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public string TargetAudioCodec
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{
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get
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{
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MediaStream stream = TargetAudioStream;
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return IsDirectStream
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? (stream == null ? null : stream.Codec)
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: AudioCodec;
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}
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}
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/// <summary>
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/// Predicts the audio channels that will be in the output stream
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/// </summary>
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public long? TargetSize
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{
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get
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{
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if (IsDirectStream)
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{
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return MediaSource.Size;
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}
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if (RunTimeTicks.HasValue)
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{
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int? totalBitrate = TargetTotalBitrate;
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double totalSeconds = RunTimeTicks.Value;
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// Convert to ms
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totalSeconds /= 10000;
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// Convert to seconds
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totalSeconds /= 1000;
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return totalBitrate.HasValue ?
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Convert.ToInt64(totalBitrate.Value * totalSeconds) :
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(long?)null;
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}
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return null;
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}
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}
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public int? TargetVideoBitrate
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{
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get
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{
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MediaStream stream = TargetVideoStream;
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return VideoBitrate.HasValue && !IsDirectStream
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? VideoBitrate
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: stream == null ? null : stream.BitRate;
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}
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}
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public TransportStreamTimestamp TargetTimestamp
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{
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get
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{
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TransportStreamTimestamp defaultValue = StringHelper.EqualsIgnoreCase(Container, "m2ts")
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? TransportStreamTimestamp.Valid
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: TransportStreamTimestamp.None;
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return !IsDirectStream
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? defaultValue
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: MediaSource == null ? defaultValue : MediaSource.Timestamp ?? TransportStreamTimestamp.None;
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}
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}
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public int? TargetTotalBitrate
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{
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get
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{
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return (TargetAudioBitrate ?? 0) + (TargetVideoBitrate ?? 0);
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}
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}
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public bool? IsTargetAnamorphic
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{
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get
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{
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if (IsDirectStream)
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{
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return TargetVideoStream == null ? null : TargetVideoStream.IsAnamorphic;
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}
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return false;
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}
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}
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public int? TargetWidth
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{
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get
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{
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MediaStream videoStream = TargetVideoStream;
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if (videoStream != null && videoStream.Width.HasValue && videoStream.Height.HasValue)
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{
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ImageSize size = new ImageSize
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{
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Width = videoStream.Width.Value,
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Height = videoStream.Height.Value
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};
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double? maxWidth = MaxWidth.HasValue ? (double)MaxWidth.Value : (double?)null;
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double? maxHeight = MaxHeight.HasValue ? (double)MaxHeight.Value : (double?)null;
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ImageSize newSize = DrawingUtils.Resize(size,
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null,
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null,
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maxWidth,
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maxHeight);
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return Convert.ToInt32(newSize.Width);
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}
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return MaxWidth;
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}
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}
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public int? TargetHeight
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{
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get
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{
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MediaStream videoStream = TargetVideoStream;
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if (videoStream != null && videoStream.Width.HasValue && videoStream.Height.HasValue)
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{
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ImageSize size = new ImageSize
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{
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Width = videoStream.Width.Value,
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Height = videoStream.Height.Value
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};
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double? maxWidth = MaxWidth.HasValue ? (double)MaxWidth.Value : (double?)null;
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double? maxHeight = MaxHeight.HasValue ? (double)MaxHeight.Value : (double?)null;
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ImageSize newSize = DrawingUtils.Resize(size,
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null,
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null,
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maxWidth,
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maxHeight);
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return Convert.ToInt32(newSize.Height);
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}
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return MaxHeight;
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}
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}
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}
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}
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