419 lines
13 KiB
C#
419 lines
13 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.MediaInfo;
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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 bool IsDirectStream { 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? 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 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 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 (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 (string.Equals(Protocol, "hls", StringComparison.OrdinalIgnoreCase))
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{
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return string.Format("{0}/videos/{1}/stream.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 readonly CultureInfo UsCulture = new CultureInfo("en-US");
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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 ? item.AudioStreamIndex.Value.ToString(UsCulture) : string.Empty,
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item.SubtitleStreamIndex.HasValue ? item.SubtitleStreamIndex.Value.ToString(UsCulture) : string.Empty,
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item.VideoBitrate.HasValue ? item.VideoBitrate.Value.ToString(UsCulture) : string.Empty,
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item.AudioBitrate.HasValue ? item.AudioBitrate.Value.ToString(UsCulture) : string.Empty,
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item.MaxAudioChannels.HasValue ? item.MaxAudioChannels.Value.ToString(UsCulture) : string.Empty,
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item.MaxFramerate.HasValue ? item.MaxFramerate.Value.ToString(UsCulture) : string.Empty,
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item.MaxWidth.HasValue ? item.MaxWidth.Value.ToString(UsCulture) : string.Empty,
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item.MaxHeight.HasValue ? item.MaxHeight.Value.ToString(UsCulture) : string.Empty,
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item.StartPositionTicks.ToString(UsCulture),
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item.VideoLevel.HasValue ? item.VideoLevel.Value.ToString(UsCulture) : string.Empty
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};
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return string.Format("Params={0}", string.Join(";", list.ToArray()));
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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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foreach (MediaStream stream in MediaSource.MediaStreams)
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{
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if (stream.Type == MediaStreamType.Audio)
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return stream;
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}
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return null;
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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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foreach (MediaStream i in MediaSource.MediaStreams)
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{
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if (i.Type == MediaStreamType.Video && (i.Codec ?? string.Empty).IndexOf("jpeg", StringComparison.OrdinalIgnoreCase) == -1)
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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 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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/// Predicts the audio sample rate that will be in the output stream
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/// </summary>
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public double? 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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: stream == null ? null : 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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return totalBitrate.HasValue ?
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Convert.ToInt64(totalBitrate.Value * TimeSpan.FromTicks(RunTimeTicks.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 = string.Equals(Container, "m2ts", StringComparison.OrdinalIgnoreCase)
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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 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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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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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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