2090 lines
77 KiB
C#
2090 lines
77 KiB
C#
using MediaBrowser.Api.Playback.Hls;
|
|
using MediaBrowser.Common.Extensions;
|
|
using MediaBrowser.Common.IO;
|
|
using MediaBrowser.Controller.Channels;
|
|
using MediaBrowser.Controller.Configuration;
|
|
using MediaBrowser.Controller.Dlna;
|
|
using MediaBrowser.Controller.Entities;
|
|
using MediaBrowser.Controller.Library;
|
|
using MediaBrowser.Controller.LiveTv;
|
|
using MediaBrowser.Controller.MediaEncoding;
|
|
using MediaBrowser.Model.Configuration;
|
|
using MediaBrowser.Model.Dlna;
|
|
using MediaBrowser.Model.Drawing;
|
|
using MediaBrowser.Model.Dto;
|
|
using MediaBrowser.Model.Entities;
|
|
using MediaBrowser.Model.IO;
|
|
using MediaBrowser.Model.LiveTv;
|
|
using MediaBrowser.Model.MediaInfo;
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Diagnostics;
|
|
using System.Globalization;
|
|
using System.IO;
|
|
using System.Linq;
|
|
using System.Text;
|
|
using System.Threading;
|
|
using System.Threading.Tasks;
|
|
|
|
namespace MediaBrowser.Api.Playback
|
|
{
|
|
/// <summary>
|
|
/// Class BaseStreamingService
|
|
/// </summary>
|
|
public abstract class BaseStreamingService : BaseApiService
|
|
{
|
|
/// <summary>
|
|
/// Gets or sets the application paths.
|
|
/// </summary>
|
|
/// <value>The application paths.</value>
|
|
protected IServerConfigurationManager ServerConfigurationManager { get; private set; }
|
|
|
|
/// <summary>
|
|
/// Gets or sets the user manager.
|
|
/// </summary>
|
|
/// <value>The user manager.</value>
|
|
protected IUserManager UserManager { get; private set; }
|
|
|
|
/// <summary>
|
|
/// Gets or sets the library manager.
|
|
/// </summary>
|
|
/// <value>The library manager.</value>
|
|
protected ILibraryManager LibraryManager { get; private set; }
|
|
|
|
/// <summary>
|
|
/// Gets or sets the iso manager.
|
|
/// </summary>
|
|
/// <value>The iso manager.</value>
|
|
protected IIsoManager IsoManager { get; private set; }
|
|
|
|
/// <summary>
|
|
/// Gets or sets the media encoder.
|
|
/// </summary>
|
|
/// <value>The media encoder.</value>
|
|
protected IMediaEncoder MediaEncoder { get; private set; }
|
|
|
|
protected IFileSystem FileSystem { get; private set; }
|
|
|
|
protected ILiveTvManager LiveTvManager { get; private set; }
|
|
protected IDlnaManager DlnaManager { get; private set; }
|
|
protected IChannelManager ChannelManager { get; private set; }
|
|
protected ISubtitleEncoder SubtitleEncoder { get; private set; }
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="BaseStreamingService" /> class.
|
|
/// </summary>
|
|
protected BaseStreamingService(IServerConfigurationManager serverConfig, IUserManager userManager, ILibraryManager libraryManager, IIsoManager isoManager, IMediaEncoder mediaEncoder, IFileSystem fileSystem, ILiveTvManager liveTvManager, IDlnaManager dlnaManager, IChannelManager channelManager, ISubtitleEncoder subtitleEncoder)
|
|
{
|
|
SubtitleEncoder = subtitleEncoder;
|
|
ChannelManager = channelManager;
|
|
DlnaManager = dlnaManager;
|
|
LiveTvManager = liveTvManager;
|
|
FileSystem = fileSystem;
|
|
ServerConfigurationManager = serverConfig;
|
|
UserManager = userManager;
|
|
LibraryManager = libraryManager;
|
|
IsoManager = isoManager;
|
|
MediaEncoder = mediaEncoder;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the command line arguments.
|
|
/// </summary>
|
|
/// <param name="outputPath">The output path.</param>
|
|
/// <param name="state">The state.</param>
|
|
/// <param name="isEncoding">if set to <c>true</c> [is encoding].</param>
|
|
/// <returns>System.String.</returns>
|
|
protected abstract string GetCommandLineArguments(string outputPath, StreamState state, bool isEncoding);
|
|
|
|
/// <summary>
|
|
/// Gets the type of the transcoding job.
|
|
/// </summary>
|
|
/// <value>The type of the transcoding job.</value>
|
|
protected abstract TranscodingJobType TranscodingJobType { get; }
|
|
|
|
/// <summary>
|
|
/// Gets the output file extension.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <returns>System.String.</returns>
|
|
protected virtual string GetOutputFileExtension(StreamState state)
|
|
{
|
|
return Path.GetExtension(state.RequestedUrl);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the output file path.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <returns>System.String.</returns>
|
|
private string GetOutputFilePath(StreamState state)
|
|
{
|
|
var folder = ServerConfigurationManager.ApplicationPaths.TranscodingTempPath;
|
|
|
|
var outputFileExtension = GetOutputFileExtension(state);
|
|
|
|
var data = GetCommandLineArguments("dummy\\dummy", state, false);
|
|
|
|
data += "-" + (state.Request.DeviceId ?? string.Empty);
|
|
|
|
return Path.Combine(folder, data.GetMD5().ToString("N") + (outputFileExtension ?? string.Empty).ToLower());
|
|
}
|
|
|
|
protected readonly CultureInfo UsCulture = new CultureInfo("en-US");
|
|
|
|
/// <summary>
|
|
/// Gets the fast seek command line parameter.
|
|
/// </summary>
|
|
/// <param name="request">The request.</param>
|
|
/// <returns>System.String.</returns>
|
|
/// <value>The fast seek command line parameter.</value>
|
|
protected string GetFastSeekCommandLineParameter(StreamRequest request)
|
|
{
|
|
var time = request.StartTimeTicks;
|
|
|
|
if (time.HasValue && time.Value > 0)
|
|
{
|
|
return string.Format("-ss {0}", MediaEncoder.GetTimeParameter(time.Value));
|
|
}
|
|
|
|
return string.Empty;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the map args.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <returns>System.String.</returns>
|
|
protected virtual string GetMapArgs(StreamState state)
|
|
{
|
|
// If we don't have known media info
|
|
// If input is video, use -sn to drop subtitles
|
|
// Otherwise just return empty
|
|
if (state.VideoStream == null && state.AudioStream == null)
|
|
{
|
|
return state.IsInputVideo ? "-sn" : string.Empty;
|
|
}
|
|
|
|
// We have media info, but we don't know the stream indexes
|
|
if (state.VideoStream != null && state.VideoStream.Index == -1)
|
|
{
|
|
return "-sn";
|
|
}
|
|
|
|
// We have media info, but we don't know the stream indexes
|
|
if (state.AudioStream != null && state.AudioStream.Index == -1)
|
|
{
|
|
return state.IsInputVideo ? "-sn" : string.Empty;
|
|
}
|
|
|
|
var args = string.Empty;
|
|
|
|
if (state.VideoStream != null)
|
|
{
|
|
args += string.Format("-map 0:{0}", state.VideoStream.Index);
|
|
}
|
|
else
|
|
{
|
|
args += "-map -0:v";
|
|
}
|
|
|
|
if (state.AudioStream != null)
|
|
{
|
|
args += string.Format(" -map 0:{0}", state.AudioStream.Index);
|
|
}
|
|
|
|
else
|
|
{
|
|
args += " -map -0:a";
|
|
}
|
|
|
|
if (state.SubtitleStream == null)
|
|
{
|
|
args += " -map -0:s";
|
|
}
|
|
|
|
return args;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Determines which stream will be used for playback
|
|
/// </summary>
|
|
/// <param name="allStream">All stream.</param>
|
|
/// <param name="desiredIndex">Index of the desired.</param>
|
|
/// <param name="type">The type.</param>
|
|
/// <param name="returnFirstIfNoIndex">if set to <c>true</c> [return first if no index].</param>
|
|
/// <returns>MediaStream.</returns>
|
|
private MediaStream GetMediaStream(IEnumerable<MediaStream> allStream, int? desiredIndex, MediaStreamType type, bool returnFirstIfNoIndex = true)
|
|
{
|
|
var streams = allStream.Where(s => s.Type == type).OrderBy(i => i.Index).ToList();
|
|
|
|
if (desiredIndex.HasValue)
|
|
{
|
|
var stream = streams.FirstOrDefault(s => s.Index == desiredIndex.Value);
|
|
|
|
if (stream != null)
|
|
{
|
|
return stream;
|
|
}
|
|
}
|
|
|
|
if (type == MediaStreamType.Video)
|
|
{
|
|
streams = streams.Where(i => !string.Equals(i.Codec, "mjpeg", StringComparison.OrdinalIgnoreCase)).ToList();
|
|
}
|
|
|
|
if (returnFirstIfNoIndex && type == MediaStreamType.Audio)
|
|
{
|
|
return streams.FirstOrDefault(i => i.Channels.HasValue && i.Channels.Value > 0) ??
|
|
streams.FirstOrDefault();
|
|
}
|
|
|
|
// Just return the first one
|
|
return returnFirstIfNoIndex ? streams.FirstOrDefault() : null;
|
|
}
|
|
|
|
protected EncodingQuality GetQualitySetting()
|
|
{
|
|
var quality = ServerConfigurationManager.Configuration.MediaEncodingQuality;
|
|
|
|
if (quality == EncodingQuality.Auto)
|
|
{
|
|
var cpuCount = Environment.ProcessorCount;
|
|
|
|
if (cpuCount >= 4)
|
|
{
|
|
//return EncodingQuality.HighQuality;
|
|
}
|
|
|
|
return EncodingQuality.HighSpeed;
|
|
}
|
|
|
|
return quality;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the number of threads.
|
|
/// </summary>
|
|
/// <returns>System.Int32.</returns>
|
|
/// <exception cref="System.Exception">Unrecognized MediaEncodingQuality value.</exception>
|
|
protected int GetNumberOfThreads(StreamState state, bool isWebm)
|
|
{
|
|
// Use more when this is true. -re will keep cpu usage under control
|
|
if (state.ReadInputAtNativeFramerate)
|
|
{
|
|
if (isWebm)
|
|
{
|
|
return Math.Max(Environment.ProcessorCount - 1, 2);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
// Webm: http://www.webmproject.org/docs/encoder-parameters/
|
|
// The decoder will usually automatically use an appropriate number of threads according to how many cores are available but it can only use multiple threads
|
|
// for the coefficient data if the encoder selected --token-parts > 0 at encode time.
|
|
|
|
switch (GetQualitySetting())
|
|
{
|
|
case EncodingQuality.HighSpeed:
|
|
return 2;
|
|
case EncodingQuality.HighQuality:
|
|
return 2;
|
|
case EncodingQuality.MaxQuality:
|
|
return isWebm ? Math.Max(Environment.ProcessorCount - 1, 2) : 0;
|
|
default:
|
|
throw new Exception("Unrecognized MediaEncodingQuality value.");
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the video bitrate to specify on the command line
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <param name="videoCodec">The video codec.</param>
|
|
/// <param name="isHls">if set to <c>true</c> [is HLS].</param>
|
|
/// <returns>System.String.</returns>
|
|
protected string GetVideoQualityParam(StreamState state, string videoCodec, bool isHls)
|
|
{
|
|
var param = string.Empty;
|
|
|
|
var isVc1 = state.VideoStream != null &&
|
|
string.Equals(state.VideoStream.Codec, "vc1", StringComparison.OrdinalIgnoreCase);
|
|
|
|
var qualitySetting = GetQualitySetting();
|
|
|
|
if (string.Equals(videoCodec, "libx264", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
switch (qualitySetting)
|
|
{
|
|
case EncodingQuality.HighSpeed:
|
|
param = "-preset superfast";
|
|
break;
|
|
case EncodingQuality.HighQuality:
|
|
param = "-preset superfast";
|
|
break;
|
|
case EncodingQuality.MaxQuality:
|
|
param = "-preset superfast";
|
|
break;
|
|
}
|
|
|
|
switch (qualitySetting)
|
|
{
|
|
case EncodingQuality.HighSpeed:
|
|
param += " -crf 23";
|
|
break;
|
|
case EncodingQuality.HighQuality:
|
|
param += " -crf 20";
|
|
break;
|
|
case EncodingQuality.MaxQuality:
|
|
param += " -crf 18";
|
|
break;
|
|
}
|
|
}
|
|
|
|
// webm
|
|
else if (string.Equals(videoCodec, "libvpx", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
// Values 0-3, 0 being highest quality but slower
|
|
var profileScore = 0;
|
|
|
|
string crf;
|
|
|
|
switch (qualitySetting)
|
|
{
|
|
case EncodingQuality.HighSpeed:
|
|
crf = "12";
|
|
profileScore = 2;
|
|
break;
|
|
case EncodingQuality.HighQuality:
|
|
crf = "8";
|
|
profileScore = 1;
|
|
break;
|
|
case EncodingQuality.MaxQuality:
|
|
crf = "4";
|
|
break;
|
|
default:
|
|
throw new ArgumentException("Unrecognized quality setting");
|
|
}
|
|
|
|
if (isVc1)
|
|
{
|
|
profileScore++;
|
|
// Max of 2
|
|
profileScore = Math.Min(profileScore, 2);
|
|
}
|
|
|
|
// http://www.webmproject.org/docs/encoder-parameters/
|
|
param = string.Format("-speed 16 -quality good -profile:v {0} -slices 8 -crf {1}",
|
|
profileScore.ToString(UsCulture),
|
|
crf);
|
|
}
|
|
|
|
else if (string.Equals(videoCodec, "mpeg4", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
param = "-mbd rd -flags +mv4+aic -trellis 2 -cmp 2 -subcmp 2 -bf 2";
|
|
}
|
|
|
|
// asf/wmv
|
|
else if (string.Equals(videoCodec, "wmv2", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
param = "-qmin 2";
|
|
}
|
|
|
|
else if (string.Equals(videoCodec, "msmpeg4", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
param = "-mbd 2";
|
|
}
|
|
|
|
param += GetVideoBitrateParam(state, videoCodec, isHls);
|
|
|
|
var framerate = GetFramerateParam(state);
|
|
if (framerate.HasValue)
|
|
{
|
|
param += string.Format(" -r {0}", framerate.Value.ToString(UsCulture));
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(state.OutputVideoSync))
|
|
{
|
|
param += " -vsync " + state.OutputVideoSync;
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(state.VideoRequest.Profile))
|
|
{
|
|
param += " -profile:v " + state.VideoRequest.Profile;
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(state.VideoRequest.Level))
|
|
{
|
|
param += " -level " + state.VideoRequest.Level;
|
|
}
|
|
|
|
return param;
|
|
}
|
|
|
|
protected string GetAudioFilterParam(StreamState state, bool isHls)
|
|
{
|
|
var volParam = string.Empty;
|
|
var audioSampleRate = string.Empty;
|
|
|
|
var channels = state.OutputAudioChannels;
|
|
|
|
// Boost volume to 200% when downsampling from 6ch to 2ch
|
|
if (channels.HasValue && channels.Value <= 2)
|
|
{
|
|
if (state.AudioStream != null && state.AudioStream.Channels.HasValue && state.AudioStream.Channels.Value > 5)
|
|
{
|
|
volParam = ",volume=" + ServerConfigurationManager.Configuration.DownMixAudioBoost.ToString(UsCulture);
|
|
}
|
|
}
|
|
|
|
if (state.OutputAudioSampleRate.HasValue)
|
|
{
|
|
audioSampleRate = state.OutputAudioSampleRate.Value + ":";
|
|
}
|
|
|
|
var adelay = isHls ? "adelay=1," : string.Empty;
|
|
|
|
var pts = string.Empty;
|
|
|
|
if (state.SubtitleStream != null && state.SubtitleStream.IsTextSubtitleStream)
|
|
{
|
|
var seconds = TimeSpan.FromTicks(state.Request.StartTimeTicks ?? 0).TotalSeconds;
|
|
|
|
pts = string.Format(",asetpts=PTS-{0}/TB", Math.Round(seconds).ToString(UsCulture));
|
|
}
|
|
|
|
return string.Format("-af \"{0}aresample={1}async={4}{2}{3}\"",
|
|
|
|
adelay,
|
|
audioSampleRate,
|
|
volParam,
|
|
pts,
|
|
state.OutputAudioSync);
|
|
}
|
|
|
|
/// <summary>
|
|
/// If we're going to put a fixed size on the command line, this will calculate it
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <param name="outputVideoCodec">The output video codec.</param>
|
|
/// <param name="allowTimeStampCopy">if set to <c>true</c> [allow time stamp copy].</param>
|
|
/// <param name="cancellationToken">The cancellation token.</param>
|
|
/// <returns>System.String.</returns>
|
|
protected string GetOutputSizeParam(StreamState state,
|
|
string outputVideoCodec,
|
|
CancellationToken cancellationToken,
|
|
bool allowTimeStampCopy = true)
|
|
{
|
|
// http://sonnati.wordpress.com/2012/10/19/ffmpeg-the-swiss-army-knife-of-internet-streaming-part-vi/
|
|
|
|
var request = state.VideoRequest;
|
|
|
|
var filters = new List<string>();
|
|
|
|
if (state.DeInterlace)
|
|
{
|
|
filters.Add("yadif=0:-1:0");
|
|
}
|
|
|
|
// If fixed dimensions were supplied
|
|
if (request.Width.HasValue && request.Height.HasValue)
|
|
{
|
|
var widthParam = request.Width.Value.ToString(UsCulture);
|
|
var heightParam = request.Height.Value.ToString(UsCulture);
|
|
|
|
filters.Add(string.Format("scale=trunc({0}/2)*2:trunc({1}/2)*2", widthParam, heightParam));
|
|
}
|
|
|
|
// If Max dimensions were supplied, for width selects lowest even number between input width and width req size and selects lowest even number from in width*display aspect and requested size
|
|
else if (request.MaxWidth.HasValue && request.MaxHeight.HasValue)
|
|
{
|
|
var maxWidthParam = request.MaxWidth.Value.ToString(UsCulture);
|
|
var maxHeightParam = request.MaxHeight.Value.ToString(UsCulture);
|
|
|
|
filters.Add(string.Format("scale=trunc(min(iw\\,{0})/2)*2:trunc(min((iw/dar)\\,{1})/2)*2", maxWidthParam, maxHeightParam));
|
|
}
|
|
|
|
// If a fixed width was requested
|
|
else if (request.Width.HasValue)
|
|
{
|
|
var widthParam = request.Width.Value.ToString(UsCulture);
|
|
|
|
filters.Add(string.Format("scale={0}:trunc(ow/a/2)*2", widthParam));
|
|
}
|
|
|
|
// If a fixed height was requested
|
|
else if (request.Height.HasValue)
|
|
{
|
|
var heightParam = request.Height.Value.ToString(UsCulture);
|
|
|
|
filters.Add(string.Format("scale=trunc(oh*a*2)/2:{0}", heightParam));
|
|
}
|
|
|
|
// If a max width was requested
|
|
else if (request.MaxWidth.HasValue && (!request.MaxHeight.HasValue || state.VideoStream == null))
|
|
{
|
|
var maxWidthParam = request.MaxWidth.Value.ToString(UsCulture);
|
|
|
|
filters.Add(string.Format("scale=min(iw\\,{0}):trunc(ow/dar/2)*2", maxWidthParam));
|
|
}
|
|
|
|
// If a max height was requested
|
|
else if (request.MaxHeight.HasValue && (!request.MaxWidth.HasValue || state.VideoStream == null))
|
|
{
|
|
var maxHeightParam = request.MaxHeight.Value.ToString(UsCulture);
|
|
|
|
filters.Add(string.Format("scale=trunc(oh*a*2)/2:min(ih\\,{0})", maxHeightParam));
|
|
}
|
|
|
|
else if (request.MaxWidth.HasValue ||
|
|
request.MaxHeight.HasValue ||
|
|
request.Width.HasValue ||
|
|
request.Height.HasValue)
|
|
{
|
|
if (state.VideoStream != null)
|
|
{
|
|
// Need to perform calculations manually
|
|
|
|
// Try to account for bad media info
|
|
var currentHeight = state.VideoStream.Height ?? request.MaxHeight ?? request.Height ?? 0;
|
|
var currentWidth = state.VideoStream.Width ?? request.MaxWidth ?? request.Width ?? 0;
|
|
|
|
var outputSize = DrawingUtils.Resize(currentWidth, currentHeight, request.Width, request.Height, request.MaxWidth, request.MaxHeight);
|
|
|
|
var manualWidthParam = outputSize.Width.ToString(UsCulture);
|
|
var manualHeightParam = outputSize.Height.ToString(UsCulture);
|
|
|
|
filters.Add(string.Format("scale=trunc({0}/2)*2:trunc({1}/2)*2", manualWidthParam, manualHeightParam));
|
|
}
|
|
}
|
|
|
|
var output = string.Empty;
|
|
|
|
if (state.SubtitleStream != null && state.SubtitleStream.IsTextSubtitleStream)
|
|
{
|
|
var subParam = GetTextSubtitleParam(state, cancellationToken);
|
|
|
|
filters.Add(subParam);
|
|
|
|
if (allowTimeStampCopy)
|
|
{
|
|
output += " -copyts";
|
|
}
|
|
}
|
|
|
|
if (filters.Count > 0)
|
|
{
|
|
output += string.Format(" -vf \"{0}\"", string.Join(",", filters.ToArray()));
|
|
}
|
|
|
|
return output;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the text subtitle param.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <param name="cancellationToken">The cancellation token.</param>
|
|
/// <returns>System.String.</returns>
|
|
protected string GetTextSubtitleParam(StreamState state,
|
|
CancellationToken cancellationToken)
|
|
{
|
|
var seconds = Math.Round(TimeSpan.FromTicks(state.Request.StartTimeTicks ?? 0).TotalSeconds);
|
|
|
|
if (state.SubtitleStream.IsExternal)
|
|
{
|
|
var subtitlePath = state.SubtitleStream.Path;
|
|
|
|
var charsetParam = string.Empty;
|
|
|
|
if (!string.IsNullOrEmpty(state.SubtitleStream.Language))
|
|
{
|
|
var charenc = SubtitleEncoder.GetSubtitleFileCharacterSet(subtitlePath, state.SubtitleStream.Language);
|
|
|
|
if (!string.IsNullOrEmpty(charenc))
|
|
{
|
|
charsetParam = ":charenc=" + charenc;
|
|
}
|
|
}
|
|
|
|
// TODO: Perhaps also use original_size=1920x800
|
|
return string.Format("subtitles=filename='{0}'{1},setpts=PTS -{2}/TB",
|
|
subtitlePath.Replace('\\', '/').Replace(":/", "\\:/"),
|
|
charsetParam,
|
|
seconds.ToString(UsCulture));
|
|
}
|
|
|
|
return string.Format("subtitles='{0}:si={1}',setpts=PTS -{2}/TB",
|
|
state.MediaPath.Replace('\\', '/').Replace(":/", "\\:/"),
|
|
state.InternalSubtitleStreamOffset.ToString(UsCulture),
|
|
seconds.ToString(UsCulture));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the internal graphical subtitle param.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <param name="outputVideoCodec">The output video codec.</param>
|
|
/// <returns>System.String.</returns>
|
|
protected string GetInternalGraphicalSubtitleParam(StreamState state, string outputVideoCodec)
|
|
{
|
|
var outputSizeParam = string.Empty;
|
|
|
|
var request = state.VideoRequest;
|
|
|
|
// Add resolution params, if specified
|
|
if (request.Width.HasValue || request.Height.HasValue || request.MaxHeight.HasValue || request.MaxWidth.HasValue)
|
|
{
|
|
outputSizeParam = GetOutputSizeParam(state, outputVideoCodec, CancellationToken.None).TrimEnd('"');
|
|
outputSizeParam = "," + outputSizeParam.Substring(outputSizeParam.IndexOf("scale", StringComparison.OrdinalIgnoreCase));
|
|
}
|
|
|
|
var videoSizeParam = string.Empty;
|
|
|
|
if (state.VideoStream != null && state.VideoStream.Width.HasValue && state.VideoStream.Height.HasValue)
|
|
{
|
|
videoSizeParam = string.Format(",scale={0}:{1}", state.VideoStream.Width.Value.ToString(UsCulture), state.VideoStream.Height.Value.ToString(UsCulture));
|
|
}
|
|
|
|
return string.Format(" -filter_complex \"[0:{0}]format=yuva444p{3},lut=u=128:v=128:y=gammaval(.3)[sub] ; [0:{1}] [sub] overlay{2}\"",
|
|
state.SubtitleStream.Index,
|
|
state.VideoStream.Index,
|
|
outputSizeParam,
|
|
videoSizeParam);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the probe size argument.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <returns>System.String.</returns>
|
|
private string GetProbeSizeArgument(StreamState state)
|
|
{
|
|
if (state.PlayableStreamFileNames.Count > 0)
|
|
{
|
|
return MediaEncoder.GetProbeSizeArgument(state.PlayableStreamFileNames.ToArray(), state.InputProtocol);
|
|
}
|
|
|
|
return MediaEncoder.GetProbeSizeArgument(new[] { state.MediaPath }, state.InputProtocol);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the number of audio channels to specify on the command line
|
|
/// </summary>
|
|
/// <param name="request">The request.</param>
|
|
/// <param name="audioStream">The audio stream.</param>
|
|
/// <param name="outputAudioCodec">The output audio codec.</param>
|
|
/// <returns>System.Nullable{System.Int32}.</returns>
|
|
private int? GetNumAudioChannelsParam(StreamRequest request, MediaStream audioStream, string outputAudioCodec)
|
|
{
|
|
if (audioStream != null)
|
|
{
|
|
var codec = outputAudioCodec ?? string.Empty;
|
|
|
|
if (audioStream.Channels > 2 && codec.IndexOf("wma", StringComparison.OrdinalIgnoreCase) != -1)
|
|
{
|
|
// wmav2 currently only supports two channel output
|
|
return 2;
|
|
}
|
|
}
|
|
|
|
if (request.MaxAudioChannels.HasValue)
|
|
{
|
|
if (audioStream != null && audioStream.Channels.HasValue)
|
|
{
|
|
return Math.Min(request.MaxAudioChannels.Value, audioStream.Channels.Value);
|
|
}
|
|
|
|
return request.MaxAudioChannels.Value;
|
|
}
|
|
|
|
return request.AudioChannels;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Determines whether the specified stream is H264.
|
|
/// </summary>
|
|
/// <param name="stream">The stream.</param>
|
|
/// <returns><c>true</c> if the specified stream is H264; otherwise, <c>false</c>.</returns>
|
|
protected bool IsH264(MediaStream stream)
|
|
{
|
|
return stream.Codec.IndexOf("264", StringComparison.OrdinalIgnoreCase) != -1 ||
|
|
stream.Codec.IndexOf("avc", StringComparison.OrdinalIgnoreCase) != -1;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the name of the output audio codec
|
|
/// </summary>
|
|
/// <param name="request">The request.</param>
|
|
/// <returns>System.String.</returns>
|
|
private string GetAudioCodec(StreamRequest request)
|
|
{
|
|
var codec = request.AudioCodec;
|
|
|
|
if (string.Equals(codec, "aac", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "aac -strict experimental";
|
|
}
|
|
if (string.Equals(codec, "mp3", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "libmp3lame";
|
|
}
|
|
if (string.Equals(codec, "vorbis", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "libvorbis";
|
|
}
|
|
if (string.Equals(codec, "wma", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "wmav2";
|
|
}
|
|
|
|
return codec.ToLower();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the name of the output video codec
|
|
/// </summary>
|
|
/// <param name="request">The request.</param>
|
|
/// <returns>System.String.</returns>
|
|
private string GetVideoCodec(VideoStreamRequest request)
|
|
{
|
|
var codec = request.VideoCodec;
|
|
|
|
if (!string.IsNullOrEmpty(codec))
|
|
{
|
|
if (string.Equals(codec, "h264", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "libx264";
|
|
}
|
|
if (string.Equals(codec, "vpx", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "libvpx";
|
|
}
|
|
if (string.Equals(codec, "wmv", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "wmv2";
|
|
}
|
|
if (string.Equals(codec, "theora", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "libtheora";
|
|
}
|
|
|
|
return codec.ToLower();
|
|
}
|
|
|
|
return "copy";
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the input argument.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <returns>System.String.</returns>
|
|
protected virtual string GetInputArgument(StreamState state)
|
|
{
|
|
var protocol = state.InputProtocol;
|
|
|
|
var inputPath = new[] { state.MediaPath };
|
|
|
|
if (state.IsInputVideo)
|
|
{
|
|
if (!(state.VideoType == VideoType.Iso && state.IsoMount == null))
|
|
{
|
|
inputPath = MediaEncoderHelpers.GetInputArgument(state.MediaPath, state.InputProtocol, state.IsoMount, state.PlayableStreamFileNames);
|
|
}
|
|
}
|
|
|
|
return MediaEncoder.GetInputArgument(inputPath, protocol);
|
|
}
|
|
|
|
private async Task AcquireResources(StreamState state, CancellationTokenSource cancellationTokenSource)
|
|
{
|
|
if (state.VideoType == VideoType.Iso && state.IsoType.HasValue && IsoManager.CanMount(state.MediaPath))
|
|
{
|
|
state.IsoMount = await IsoManager.Mount(state.MediaPath, cancellationTokenSource.Token).ConfigureAwait(false);
|
|
}
|
|
|
|
if (string.IsNullOrEmpty(state.MediaPath))
|
|
{
|
|
if (string.Equals(state.ItemType, typeof(LiveTvChannel).Name))
|
|
{
|
|
var streamInfo = await LiveTvManager.GetChannelStream(state.Request.Id, cancellationTokenSource.Token).ConfigureAwait(false);
|
|
|
|
state.LiveTvStreamId = streamInfo.Id;
|
|
|
|
if (!string.IsNullOrEmpty(streamInfo.Path))
|
|
{
|
|
state.MediaPath = streamInfo.Path;
|
|
state.InputProtocol = MediaProtocol.File;
|
|
|
|
await Task.Delay(1000, cancellationTokenSource.Token).ConfigureAwait(false);
|
|
}
|
|
else if (!string.IsNullOrEmpty(streamInfo.Url))
|
|
{
|
|
state.MediaPath = streamInfo.Url;
|
|
state.InputProtocol = MediaProtocol.Http;
|
|
}
|
|
}
|
|
|
|
else if (string.Equals(state.ItemType, typeof(LiveTvVideoRecording).Name) ||
|
|
string.Equals(state.ItemType, typeof(LiveTvAudioRecording).Name))
|
|
{
|
|
var streamInfo = await LiveTvManager.GetRecordingStream(state.Request.Id, cancellationTokenSource.Token).ConfigureAwait(false);
|
|
|
|
state.LiveTvStreamId = streamInfo.Id;
|
|
|
|
if (!string.IsNullOrEmpty(streamInfo.Path))
|
|
{
|
|
state.MediaPath = streamInfo.Path;
|
|
state.InputProtocol = MediaProtocol.File;
|
|
|
|
await Task.Delay(1000, cancellationTokenSource.Token).ConfigureAwait(false);
|
|
}
|
|
else if (!string.IsNullOrEmpty(streamInfo.Url))
|
|
{
|
|
state.MediaPath = streamInfo.Url;
|
|
state.InputProtocol = MediaProtocol.Http;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Starts the FFMPEG.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <param name="outputPath">The output path.</param>
|
|
/// <param name="cancellationTokenSource">The cancellation token source.</param>
|
|
/// <returns>Task.</returns>
|
|
/// <exception cref="System.InvalidOperationException">ffmpeg was not found at + MediaEncoder.EncoderPath</exception>
|
|
protected async Task StartFfMpeg(StreamState state, string outputPath, CancellationTokenSource cancellationTokenSource)
|
|
{
|
|
if (!File.Exists(MediaEncoder.EncoderPath))
|
|
{
|
|
throw new InvalidOperationException("ffmpeg was not found at " + MediaEncoder.EncoderPath);
|
|
}
|
|
|
|
Directory.CreateDirectory(Path.GetDirectoryName(outputPath));
|
|
|
|
await AcquireResources(state, cancellationTokenSource).ConfigureAwait(false);
|
|
|
|
var commandLineArgs = GetCommandLineArguments(outputPath, state, true);
|
|
|
|
if (ServerConfigurationManager.Configuration.EnableDebugEncodingLogging)
|
|
{
|
|
commandLineArgs = "-loglevel debug " + commandLineArgs;
|
|
}
|
|
|
|
var process = new Process
|
|
{
|
|
StartInfo = new ProcessStartInfo
|
|
{
|
|
CreateNoWindow = true,
|
|
UseShellExecute = false,
|
|
|
|
// Must consume both stdout and stderr or deadlocks may occur
|
|
RedirectStandardOutput = true,
|
|
RedirectStandardError = true,
|
|
RedirectStandardInput = true,
|
|
|
|
FileName = MediaEncoder.EncoderPath,
|
|
WorkingDirectory = Path.GetDirectoryName(MediaEncoder.EncoderPath),
|
|
Arguments = commandLineArgs,
|
|
|
|
WindowStyle = ProcessWindowStyle.Hidden,
|
|
ErrorDialog = false
|
|
},
|
|
|
|
EnableRaisingEvents = true
|
|
};
|
|
|
|
ApiEntryPoint.Instance.OnTranscodeBeginning(outputPath,
|
|
TranscodingJobType,
|
|
process,
|
|
state.Request.DeviceId,
|
|
state,
|
|
cancellationTokenSource);
|
|
|
|
var commandLineLogMessage = process.StartInfo.FileName + " " + process.StartInfo.Arguments;
|
|
Logger.Info(commandLineLogMessage);
|
|
|
|
var logFilePath = Path.Combine(ServerConfigurationManager.ApplicationPaths.LogDirectoryPath, "transcode-" + Guid.NewGuid() + ".txt");
|
|
Directory.CreateDirectory(Path.GetDirectoryName(logFilePath));
|
|
|
|
// FFMpeg writes debug/error info to stderr. This is useful when debugging so let's put it in the log directory.
|
|
state.LogFileStream = FileSystem.GetFileStream(logFilePath, FileMode.Create, FileAccess.Write, FileShare.Read, true);
|
|
|
|
var commandLineLogMessageBytes = Encoding.UTF8.GetBytes(commandLineLogMessage + Environment.NewLine + Environment.NewLine);
|
|
await state.LogFileStream.WriteAsync(commandLineLogMessageBytes, 0, commandLineLogMessageBytes.Length, cancellationTokenSource.Token).ConfigureAwait(false);
|
|
|
|
process.Exited += (sender, args) => OnFfMpegProcessExited(process, state, outputPath);
|
|
|
|
try
|
|
{
|
|
process.Start();
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
Logger.ErrorException("Error starting ffmpeg", ex);
|
|
|
|
ApiEntryPoint.Instance.OnTranscodeFailedToStart(outputPath, TranscodingJobType, state);
|
|
|
|
throw;
|
|
}
|
|
|
|
// MUST read both stdout and stderr asynchronously or a deadlock may occurr
|
|
process.BeginOutputReadLine();
|
|
|
|
// Important - don't await the log task or we won't be able to kill ffmpeg when the user stops playback
|
|
StartStreamingLog(state, process.StandardError.BaseStream, state.LogFileStream);
|
|
|
|
// Wait for the file to exist before proceeeding
|
|
while (!File.Exists(outputPath))
|
|
{
|
|
await Task.Delay(100, cancellationTokenSource.Token).ConfigureAwait(false);
|
|
}
|
|
|
|
// Allow a small amount of time to buffer a little
|
|
// But not with HLS because it already has it's own wait
|
|
if (state.IsInputVideo && TranscodingJobType != TranscodingJobType.Hls)
|
|
{
|
|
await Task.Delay(500, cancellationTokenSource.Token).ConfigureAwait(false);
|
|
}
|
|
|
|
// This is arbitrary, but add a little buffer time when internet streaming
|
|
if (state.InputProtocol != MediaProtocol.File)
|
|
{
|
|
await Task.Delay(2500, cancellationTokenSource.Token).ConfigureAwait(false);
|
|
}
|
|
}
|
|
|
|
private async void StartStreamingLog(StreamState state, Stream source, Stream target)
|
|
{
|
|
try
|
|
{
|
|
using (var reader = new StreamReader(source))
|
|
{
|
|
while (!reader.EndOfStream)
|
|
{
|
|
var line = await reader.ReadLineAsync().ConfigureAwait(false);
|
|
|
|
ParseLogLine(line, state);
|
|
|
|
var bytes = Encoding.UTF8.GetBytes(Environment.NewLine + line);
|
|
|
|
await target.WriteAsync(bytes, 0, bytes.Length).ConfigureAwait(false);
|
|
}
|
|
}
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
Logger.ErrorException("Error reading ffmpeg log", ex);
|
|
}
|
|
}
|
|
|
|
private void ParseLogLine(string line, StreamState state)
|
|
{
|
|
float? framerate = null;
|
|
double? percent = null;
|
|
|
|
var parts = line.Split(' ');
|
|
|
|
var totalMs = state.RunTimeTicks.HasValue
|
|
? TimeSpan.FromTicks(state.RunTimeTicks.Value).TotalMilliseconds
|
|
: 0;
|
|
|
|
var startMs = state.Request.StartTimeTicks.HasValue
|
|
? TimeSpan.FromTicks(state.Request.StartTimeTicks.Value).TotalMilliseconds
|
|
: 0;
|
|
|
|
for (var i = 0; i < parts.Length; i++)
|
|
{
|
|
var part = parts[i];
|
|
|
|
if (string.Equals(part, "fps=", StringComparison.OrdinalIgnoreCase) &&
|
|
(i + 1 < parts.Length))
|
|
{
|
|
var rate = parts[i + 1];
|
|
float val;
|
|
|
|
if (float.TryParse(rate, NumberStyles.Any, UsCulture, out val))
|
|
{
|
|
framerate = val;
|
|
}
|
|
}
|
|
else if (state.RunTimeTicks.HasValue &&
|
|
part.StartsWith("time=", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
var time = part.Split(new[] { '=' }, 2).Last();
|
|
TimeSpan val;
|
|
|
|
if (TimeSpan.TryParse(time, UsCulture, out val))
|
|
{
|
|
var currentMs = startMs + val.TotalMilliseconds;
|
|
|
|
var percentVal = currentMs / totalMs;
|
|
percent = 100 * percentVal;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (framerate.HasValue || percent.HasValue)
|
|
{
|
|
ApiEntryPoint.Instance.ReportTranscodingProgress(state, framerate, percent);
|
|
}
|
|
}
|
|
|
|
private int? GetVideoBitrateParamValue(VideoStreamRequest request, MediaStream videoStream)
|
|
{
|
|
var bitrate = request.VideoBitRate;
|
|
|
|
if (videoStream != null)
|
|
{
|
|
var isUpscaling = request.Height.HasValue && videoStream.Height.HasValue &&
|
|
request.Height.Value > videoStream.Height.Value;
|
|
|
|
if (request.Width.HasValue && videoStream.Width.HasValue &&
|
|
request.Width.Value > videoStream.Width.Value)
|
|
{
|
|
isUpscaling = true;
|
|
}
|
|
|
|
// Don't allow bitrate increases unless upscaling
|
|
if (!isUpscaling)
|
|
{
|
|
if (bitrate.HasValue && videoStream.BitRate.HasValue)
|
|
{
|
|
bitrate = Math.Min(bitrate.Value, videoStream.BitRate.Value);
|
|
}
|
|
}
|
|
}
|
|
|
|
return bitrate;
|
|
}
|
|
|
|
protected string GetVideoBitrateParam(StreamState state, string videoCodec, bool isHls)
|
|
{
|
|
var bitrate = state.OutputVideoBitrate;
|
|
|
|
if (bitrate.HasValue)
|
|
{
|
|
var hasFixedResolution = state.VideoRequest.HasFixedResolution;
|
|
|
|
if (string.Equals(videoCodec, "libvpx", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
if (hasFixedResolution)
|
|
{
|
|
return string.Format(" -minrate:v ({0}*.90) -maxrate:v ({0}*1.10) -bufsize:v {0} -b:v {0}", bitrate.Value.ToString(UsCulture));
|
|
}
|
|
|
|
// With vpx when crf is used, b:v becomes a max rate
|
|
// https://trac.ffmpeg.org/wiki/vpxEncodingGuide. But higher bitrate source files -b:v causes judder so limite the bitrate but dont allow it to "saturate" the bitrate. So dont contrain it down just up.
|
|
return string.Format(" -maxrate:v {0} -bufsize:v ({0}*2) -b:v {0}", bitrate.Value.ToString(UsCulture));
|
|
}
|
|
|
|
if (string.Equals(videoCodec, "msmpeg4", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return string.Format(" -b:v {0}", bitrate.Value.ToString(UsCulture));
|
|
}
|
|
|
|
// H264
|
|
if (hasFixedResolution)
|
|
{
|
|
if (isHls)
|
|
{
|
|
return string.Format(" -b:v {0} -maxrate ({0}*.80) -bufsize {0}", bitrate.Value.ToString(UsCulture));
|
|
}
|
|
|
|
return string.Format(" -b:v {0}", bitrate.Value.ToString(UsCulture));
|
|
}
|
|
|
|
return string.Format(" -maxrate {0} -bufsize {1}",
|
|
bitrate.Value.ToString(UsCulture),
|
|
(bitrate.Value * 2).ToString(UsCulture));
|
|
}
|
|
|
|
return string.Empty;
|
|
}
|
|
|
|
private int? GetAudioBitrateParam(StreamRequest request, MediaStream audioStream)
|
|
{
|
|
if (request.AudioBitRate.HasValue)
|
|
{
|
|
// Make sure we don't request a bitrate higher than the source
|
|
var currentBitrate = audioStream == null ? request.AudioBitRate.Value : audioStream.BitRate ?? request.AudioBitRate.Value;
|
|
|
|
return request.AudioBitRate.Value;
|
|
//return Math.Min(currentBitrate, request.AudioBitRate.Value);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the user agent param.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <returns>System.String.</returns>
|
|
private string GetUserAgentParam(StreamState state)
|
|
{
|
|
string useragent = null;
|
|
|
|
state.RemoteHttpHeaders.TryGetValue("User-Agent", out useragent);
|
|
|
|
if (!string.IsNullOrWhiteSpace(useragent))
|
|
{
|
|
return "-user-agent \"" + useragent + "\"";
|
|
}
|
|
|
|
return string.Empty;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Processes the exited.
|
|
/// </summary>
|
|
/// <param name="process">The process.</param>
|
|
/// <param name="state">The state.</param>
|
|
/// <param name="outputPath">The output path.</param>
|
|
private void OnFfMpegProcessExited(Process process, StreamState state, string outputPath)
|
|
{
|
|
var job = ApiEntryPoint.Instance.GetTranscodingJob(outputPath, TranscodingJobType);
|
|
|
|
if (job != null)
|
|
{
|
|
job.HasExited = true;
|
|
}
|
|
|
|
Logger.Debug("Disposing stream resources");
|
|
state.Dispose();
|
|
|
|
try
|
|
{
|
|
Logger.Info("FFMpeg exited with code {0}", process.ExitCode);
|
|
}
|
|
catch
|
|
{
|
|
Logger.Error("FFMpeg exited with an error.");
|
|
}
|
|
|
|
// This causes on exited to be called twice:
|
|
//try
|
|
//{
|
|
// // Dispose the process
|
|
// process.Dispose();
|
|
//}
|
|
//catch (Exception ex)
|
|
//{
|
|
// Logger.ErrorException("Error disposing ffmpeg.", ex);
|
|
//}
|
|
}
|
|
|
|
protected double? GetFramerateParam(StreamState state)
|
|
{
|
|
if (state.VideoRequest != null)
|
|
{
|
|
if (state.VideoRequest.Framerate.HasValue)
|
|
{
|
|
return state.VideoRequest.Framerate.Value;
|
|
}
|
|
|
|
var maxrate = state.VideoRequest.MaxFramerate ?? 23.97602;
|
|
|
|
if (state.VideoStream != null)
|
|
{
|
|
var contentRate = state.VideoStream.AverageFrameRate ?? state.VideoStream.RealFrameRate;
|
|
|
|
if (contentRate.HasValue && contentRate.Value > maxrate)
|
|
{
|
|
return maxrate;
|
|
}
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Parses the parameters.
|
|
/// </summary>
|
|
/// <param name="request">The request.</param>
|
|
private void ParseParams(StreamRequest request)
|
|
{
|
|
var vals = request.Params.Split(';');
|
|
|
|
var videoRequest = request as VideoStreamRequest;
|
|
|
|
for (var i = 0; i < vals.Length; i++)
|
|
{
|
|
var val = vals[i];
|
|
|
|
if (string.IsNullOrWhiteSpace(val))
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if (i == 0)
|
|
{
|
|
request.DeviceProfileId = val;
|
|
}
|
|
else if (i == 1)
|
|
{
|
|
request.DeviceId = val;
|
|
}
|
|
else if (i == 2)
|
|
{
|
|
request.MediaSourceId = val;
|
|
}
|
|
else if (i == 3)
|
|
{
|
|
request.Static = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
|
|
}
|
|
else if (i == 4)
|
|
{
|
|
if (videoRequest != null)
|
|
{
|
|
videoRequest.VideoCodec = val;
|
|
}
|
|
}
|
|
else if (i == 5)
|
|
{
|
|
request.AudioCodec = val;
|
|
}
|
|
else if (i == 6)
|
|
{
|
|
if (videoRequest != null)
|
|
{
|
|
videoRequest.AudioStreamIndex = int.Parse(val, UsCulture);
|
|
}
|
|
}
|
|
else if (i == 7)
|
|
{
|
|
if (videoRequest != null)
|
|
{
|
|
videoRequest.SubtitleStreamIndex = int.Parse(val, UsCulture);
|
|
}
|
|
}
|
|
else if (i == 8)
|
|
{
|
|
if (videoRequest != null)
|
|
{
|
|
videoRequest.VideoBitRate = int.Parse(val, UsCulture);
|
|
}
|
|
}
|
|
else if (i == 9)
|
|
{
|
|
request.AudioBitRate = int.Parse(val, UsCulture);
|
|
}
|
|
else if (i == 10)
|
|
{
|
|
request.MaxAudioChannels = int.Parse(val, UsCulture);
|
|
}
|
|
else if (i == 11)
|
|
{
|
|
if (videoRequest != null)
|
|
{
|
|
videoRequest.MaxFramerate = float.Parse(val, UsCulture);
|
|
}
|
|
}
|
|
else if (i == 12)
|
|
{
|
|
if (videoRequest != null)
|
|
{
|
|
videoRequest.MaxWidth = int.Parse(val, UsCulture);
|
|
}
|
|
}
|
|
else if (i == 13)
|
|
{
|
|
if (videoRequest != null)
|
|
{
|
|
videoRequest.MaxHeight = int.Parse(val, UsCulture);
|
|
}
|
|
}
|
|
else if (i == 14)
|
|
{
|
|
request.StartTimeTicks = long.Parse(val, UsCulture);
|
|
}
|
|
else if (i == 15)
|
|
{
|
|
if (videoRequest != null)
|
|
{
|
|
videoRequest.Level = val;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Parses the dlna headers.
|
|
/// </summary>
|
|
/// <param name="request">The request.</param>
|
|
private void ParseDlnaHeaders(StreamRequest request)
|
|
{
|
|
if (!request.StartTimeTicks.HasValue)
|
|
{
|
|
var timeSeek = GetHeader("TimeSeekRange.dlna.org");
|
|
|
|
request.StartTimeTicks = ParseTimeSeekHeader(timeSeek);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Parses the time seek header.
|
|
/// </summary>
|
|
private long? ParseTimeSeekHeader(string value)
|
|
{
|
|
if (string.IsNullOrWhiteSpace(value))
|
|
{
|
|
return null;
|
|
}
|
|
|
|
if (value.IndexOf("npt=", StringComparison.OrdinalIgnoreCase) != 0)
|
|
{
|
|
throw new ArgumentException("Invalid timeseek header");
|
|
}
|
|
value = value.Substring(4).Split(new[] { '-' }, 2)[0];
|
|
|
|
if (value.IndexOf(':') == -1)
|
|
{
|
|
// Parses npt times in the format of '417.33'
|
|
double seconds;
|
|
if (double.TryParse(value, NumberStyles.Any, UsCulture, out seconds))
|
|
{
|
|
return TimeSpan.FromSeconds(seconds).Ticks;
|
|
}
|
|
|
|
throw new ArgumentException("Invalid timeseek header");
|
|
}
|
|
|
|
// Parses npt times in the format of '10:19:25.7'
|
|
var tokens = value.Split(new[] { ':' }, 3);
|
|
double secondsSum = 0;
|
|
var timeFactor = 3600;
|
|
|
|
foreach (var time in tokens)
|
|
{
|
|
double digit;
|
|
if (double.TryParse(time, NumberStyles.Any, UsCulture, out digit))
|
|
{
|
|
secondsSum += (digit * timeFactor);
|
|
}
|
|
else
|
|
{
|
|
throw new ArgumentException("Invalid timeseek header");
|
|
}
|
|
timeFactor /= 60;
|
|
}
|
|
return TimeSpan.FromSeconds(secondsSum).Ticks;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the state.
|
|
/// </summary>
|
|
/// <param name="request">The request.</param>
|
|
/// <param name="cancellationToken">The cancellation token.</param>
|
|
/// <returns>StreamState.</returns>
|
|
protected async Task<StreamState> GetState(StreamRequest request, CancellationToken cancellationToken)
|
|
{
|
|
ParseDlnaHeaders(request);
|
|
|
|
if (!string.IsNullOrWhiteSpace(request.Params))
|
|
{
|
|
ParseParams(request);
|
|
}
|
|
|
|
var url = Request.PathInfo;
|
|
|
|
if (string.IsNullOrEmpty(request.AudioCodec))
|
|
{
|
|
request.AudioCodec = InferAudioCodec(url);
|
|
}
|
|
|
|
var state = new StreamState(LiveTvManager, Logger)
|
|
{
|
|
Request = request,
|
|
RequestedUrl = url
|
|
};
|
|
|
|
if (!string.IsNullOrWhiteSpace(request.AudioCodec))
|
|
{
|
|
state.SupportedAudioCodecs = request.AudioCodec.Split(',').Where(i => !string.IsNullOrWhiteSpace(i)).ToList();
|
|
state.Request.AudioCodec = state.SupportedAudioCodecs.FirstOrDefault();
|
|
}
|
|
|
|
var item = LibraryManager.GetItemById(request.Id);
|
|
|
|
List<MediaStream> mediaStreams = null;
|
|
|
|
state.ItemType = item.GetType().Name;
|
|
|
|
if (item is ILiveTvRecording)
|
|
{
|
|
var recording = await LiveTvManager.GetInternalRecording(request.Id, cancellationToken).ConfigureAwait(false);
|
|
|
|
state.VideoType = VideoType.VideoFile;
|
|
state.IsInputVideo = string.Equals(recording.MediaType, MediaType.Video, StringComparison.OrdinalIgnoreCase);
|
|
|
|
var path = recording.RecordingInfo.Path;
|
|
var mediaUrl = recording.RecordingInfo.Url;
|
|
|
|
var source = string.IsNullOrEmpty(request.MediaSourceId)
|
|
? recording.GetMediaSources(false).First()
|
|
: recording.GetMediaSources(false).First(i => string.Equals(i.Id, request.MediaSourceId));
|
|
|
|
mediaStreams = source.MediaStreams;
|
|
|
|
// Just to prevent this from being null and causing other methods to fail
|
|
state.MediaPath = string.Empty;
|
|
|
|
if (!string.IsNullOrEmpty(path))
|
|
{
|
|
state.MediaPath = path;
|
|
state.InputProtocol = MediaProtocol.File;
|
|
}
|
|
else if (!string.IsNullOrEmpty(mediaUrl))
|
|
{
|
|
state.MediaPath = mediaUrl;
|
|
state.InputProtocol = MediaProtocol.Http;
|
|
}
|
|
else
|
|
{
|
|
// No media info, so this is probably needed
|
|
state.DeInterlace = true;
|
|
}
|
|
|
|
if (recording.RecordingInfo.Status == RecordingStatus.InProgress)
|
|
{
|
|
state.ReadInputAtNativeFramerate = true;
|
|
}
|
|
|
|
state.RunTimeTicks = recording.RunTimeTicks;
|
|
|
|
if (recording.RecordingInfo.Status == RecordingStatus.InProgress)
|
|
{
|
|
await Task.Delay(1000, cancellationToken).ConfigureAwait(false);
|
|
}
|
|
|
|
state.OutputAudioSync = "1000";
|
|
state.InputVideoSync = "-1";
|
|
state.InputAudioSync = "1";
|
|
state.InputContainer = recording.Container;
|
|
}
|
|
else if (item is LiveTvChannel)
|
|
{
|
|
var channel = LiveTvManager.GetInternalChannel(request.Id);
|
|
|
|
state.VideoType = VideoType.VideoFile;
|
|
state.IsInputVideo = string.Equals(channel.MediaType, MediaType.Video, StringComparison.OrdinalIgnoreCase);
|
|
mediaStreams = new List<MediaStream>();
|
|
|
|
state.ReadInputAtNativeFramerate = true;
|
|
state.OutputAudioSync = "1000";
|
|
state.DeInterlace = true;
|
|
state.InputVideoSync = "-1";
|
|
state.InputAudioSync = "1";
|
|
|
|
// Just to prevent this from being null and causing other methods to fail
|
|
state.MediaPath = string.Empty;
|
|
}
|
|
else if (item is IChannelMediaItem)
|
|
{
|
|
var mediaSource = await GetChannelMediaInfo(request.Id, request.MediaSourceId, cancellationToken).ConfigureAwait(false);
|
|
state.IsInputVideo = string.Equals(item.MediaType, MediaType.Video, StringComparison.OrdinalIgnoreCase);
|
|
state.InputProtocol = mediaSource.Protocol;
|
|
state.MediaPath = mediaSource.Path;
|
|
state.RunTimeTicks = item.RunTimeTicks;
|
|
state.RemoteHttpHeaders = mediaSource.RequiredHttpHeaders;
|
|
mediaStreams = mediaSource.MediaStreams;
|
|
}
|
|
else
|
|
{
|
|
var hasMediaSources = (IHasMediaSources)item;
|
|
var mediaSource = string.IsNullOrEmpty(request.MediaSourceId)
|
|
? hasMediaSources.GetMediaSources(false).First()
|
|
: hasMediaSources.GetMediaSources(false).First(i => string.Equals(i.Id, request.MediaSourceId));
|
|
|
|
mediaStreams = mediaSource.MediaStreams;
|
|
|
|
state.MediaPath = mediaSource.Path;
|
|
state.InputProtocol = mediaSource.Protocol;
|
|
state.InputContainer = mediaSource.Container;
|
|
|
|
if (item is Video)
|
|
{
|
|
state.IsInputVideo = true;
|
|
|
|
if (mediaSource.VideoType.HasValue)
|
|
{
|
|
state.VideoType = mediaSource.VideoType.Value;
|
|
}
|
|
|
|
state.IsoType = mediaSource.IsoType;
|
|
|
|
state.PlayableStreamFileNames = mediaSource.PlayableStreamFileNames.ToList();
|
|
|
|
if (mediaSource.Timestamp.HasValue)
|
|
{
|
|
state.InputTimestamp = mediaSource.Timestamp.Value;
|
|
}
|
|
}
|
|
|
|
state.RunTimeTicks = mediaSource.RunTimeTicks;
|
|
}
|
|
|
|
// If it's a wtv and we don't have media info, we will probably need to deinterlace
|
|
if (string.Equals(state.InputContainer, "wtv", StringComparison.OrdinalIgnoreCase) &&
|
|
mediaStreams.Count == 0)
|
|
{
|
|
state.DeInterlace = true;
|
|
}
|
|
|
|
if (state.InputProtocol == MediaProtocol.Rtmp)
|
|
{
|
|
state.ReadInputAtNativeFramerate = true;
|
|
}
|
|
|
|
var videoRequest = request as VideoStreamRequest;
|
|
|
|
AttachMediaStreamInfo(state, mediaStreams, videoRequest, url);
|
|
|
|
state.SegmentLength = state.ReadInputAtNativeFramerate ? 5 : 7;
|
|
state.HlsListSize = state.ReadInputAtNativeFramerate ? 100 : 1440;
|
|
|
|
var container = Path.GetExtension(state.RequestedUrl);
|
|
|
|
if (string.IsNullOrEmpty(container))
|
|
{
|
|
container = request.Static ? state.InputContainer : Path.GetExtension(GetOutputFilePath(state));
|
|
}
|
|
|
|
state.OutputContainer = (container ?? string.Empty).TrimStart('.');
|
|
|
|
state.OutputAudioBitrate = GetAudioBitrateParam(state.Request, state.AudioStream);
|
|
state.OutputAudioSampleRate = request.AudioSampleRate;
|
|
|
|
state.OutputAudioCodec = GetAudioCodec(state.Request);
|
|
|
|
state.OutputAudioChannels = GetNumAudioChannelsParam(state.Request, state.AudioStream, state.OutputAudioCodec);
|
|
|
|
if (videoRequest != null)
|
|
{
|
|
state.OutputVideoCodec = GetVideoCodec(videoRequest);
|
|
state.OutputVideoBitrate = GetVideoBitrateParamValue(state.VideoRequest, state.VideoStream);
|
|
}
|
|
|
|
ApplyDeviceProfileSettings(state);
|
|
|
|
if (videoRequest != null)
|
|
{
|
|
if (state.VideoStream != null && CanStreamCopyVideo(videoRequest, state.VideoStream))
|
|
{
|
|
state.OutputVideoCodec = "copy";
|
|
}
|
|
|
|
if (state.AudioStream != null && CanStreamCopyAudio(request, state.AudioStream, state.SupportedAudioCodecs))
|
|
{
|
|
state.OutputAudioCodec = "copy";
|
|
}
|
|
}
|
|
|
|
state.OutputFilePath = GetOutputFilePath(state);
|
|
|
|
return state;
|
|
}
|
|
|
|
private void AttachMediaStreamInfo(StreamState state,
|
|
List<MediaStream> mediaStreams,
|
|
VideoStreamRequest videoRequest,
|
|
string requestedUrl)
|
|
{
|
|
if (videoRequest != null)
|
|
{
|
|
if (string.IsNullOrEmpty(videoRequest.VideoCodec))
|
|
{
|
|
videoRequest.VideoCodec = InferVideoCodec(requestedUrl);
|
|
}
|
|
|
|
state.VideoStream = GetMediaStream(mediaStreams, videoRequest.VideoStreamIndex, MediaStreamType.Video);
|
|
state.SubtitleStream = GetMediaStream(mediaStreams, videoRequest.SubtitleStreamIndex, MediaStreamType.Subtitle, false);
|
|
state.AudioStream = GetMediaStream(mediaStreams, videoRequest.AudioStreamIndex, MediaStreamType.Audio);
|
|
|
|
if (state.SubtitleStream != null && !state.SubtitleStream.IsExternal)
|
|
{
|
|
state.InternalSubtitleStreamOffset = mediaStreams.Where(i => i.Type == MediaStreamType.Subtitle && !i.IsExternal).ToList().IndexOf(state.SubtitleStream);
|
|
}
|
|
|
|
if (state.VideoStream != null && state.VideoStream.IsInterlaced)
|
|
{
|
|
state.DeInterlace = true;
|
|
}
|
|
|
|
EnforceResolutionLimit(state, videoRequest);
|
|
}
|
|
else
|
|
{
|
|
state.AudioStream = GetMediaStream(mediaStreams, null, MediaStreamType.Audio, true);
|
|
}
|
|
}
|
|
|
|
private async Task<MediaSourceInfo> GetChannelMediaInfo(string id,
|
|
string mediaSourceId,
|
|
CancellationToken cancellationToken)
|
|
{
|
|
var channelMediaSources = await ChannelManager.GetChannelItemMediaSources(id, cancellationToken)
|
|
.ConfigureAwait(false);
|
|
|
|
var list = channelMediaSources.ToList();
|
|
|
|
if (!string.IsNullOrWhiteSpace(mediaSourceId))
|
|
{
|
|
var source = list
|
|
.FirstOrDefault(i => string.Equals(mediaSourceId, i.Id));
|
|
|
|
if (source != null)
|
|
{
|
|
return source;
|
|
}
|
|
}
|
|
|
|
return list.First();
|
|
}
|
|
|
|
private bool CanStreamCopyVideo(VideoStreamRequest request, MediaStream videoStream)
|
|
{
|
|
if (videoStream.IsInterlaced)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Can't stream copy if we're burning in subtitles
|
|
if (request.SubtitleStreamIndex.HasValue)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Source and target codecs must match
|
|
if (!string.Equals(request.VideoCodec, videoStream.Codec, StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// If client is requesting a specific video profile, it must match the source
|
|
if (!string.IsNullOrEmpty(request.Profile) && !string.Equals(request.Profile, videoStream.Profile, StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Video width must fall within requested value
|
|
if (request.MaxWidth.HasValue)
|
|
{
|
|
if (!videoStream.Width.HasValue || videoStream.Width.Value > request.MaxWidth.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Video height must fall within requested value
|
|
if (request.MaxHeight.HasValue)
|
|
{
|
|
if (!videoStream.Height.HasValue || videoStream.Height.Value > request.MaxHeight.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Video framerate must fall within requested value
|
|
var requestedFramerate = request.MaxFramerate ?? request.Framerate;
|
|
if (requestedFramerate.HasValue)
|
|
{
|
|
var videoFrameRate = videoStream.AverageFrameRate ?? videoStream.RealFrameRate;
|
|
|
|
if (!videoFrameRate.HasValue || videoFrameRate.Value > requestedFramerate.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Video bitrate must fall within requested value
|
|
if (request.VideoBitRate.HasValue)
|
|
{
|
|
if (!videoStream.BitRate.HasValue || videoStream.BitRate.Value > request.VideoBitRate.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// If a specific level was requested, the source must match or be less than
|
|
if (!string.IsNullOrEmpty(request.Level))
|
|
{
|
|
double requestLevel;
|
|
|
|
if (double.TryParse(request.Level, NumberStyles.Any, UsCulture, out requestLevel))
|
|
{
|
|
if (!videoStream.Level.HasValue)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if (videoStream.Level.Value > requestLevel)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
return request.EnableAutoStreamCopy;
|
|
}
|
|
|
|
private bool CanStreamCopyAudio(StreamRequest request, MediaStream audioStream, List<string> supportedAudioCodecs)
|
|
{
|
|
// Source and target codecs must match
|
|
if (string.IsNullOrEmpty(audioStream.Codec) || !supportedAudioCodecs.Contains(audioStream.Codec, StringComparer.OrdinalIgnoreCase))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Video bitrate must fall within requested value
|
|
if (request.AudioBitRate.HasValue)
|
|
{
|
|
if (!audioStream.BitRate.HasValue || audioStream.BitRate.Value <= 0)
|
|
{
|
|
return false;
|
|
}
|
|
if (audioStream.BitRate.Value > request.AudioBitRate.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Channels must fall within requested value
|
|
var channels = request.AudioChannels ?? request.MaxAudioChannels;
|
|
if (channels.HasValue)
|
|
{
|
|
if (!audioStream.Channels.HasValue || audioStream.Channels.Value <= 0)
|
|
{
|
|
return false;
|
|
}
|
|
if (audioStream.Channels.Value > channels.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Sample rate must fall within requested value
|
|
if (request.AudioSampleRate.HasValue)
|
|
{
|
|
if (!audioStream.SampleRate.HasValue || audioStream.SampleRate.Value <= 0)
|
|
{
|
|
return false;
|
|
}
|
|
if (audioStream.SampleRate.Value > request.AudioSampleRate.Value)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
private void ApplyDeviceProfileSettings(StreamState state)
|
|
{
|
|
var headers = new Dictionary<string, string>();
|
|
foreach (var key in Request.Headers.AllKeys)
|
|
{
|
|
headers[key] = Request.Headers[key];
|
|
}
|
|
|
|
state.DeviceProfile = string.IsNullOrWhiteSpace(state.Request.DeviceProfileId) ?
|
|
DlnaManager.GetProfile(headers) :
|
|
DlnaManager.GetProfile(state.Request.DeviceProfileId);
|
|
|
|
var profile = state.DeviceProfile;
|
|
|
|
if (profile == null)
|
|
{
|
|
// Don't use settings from the default profile.
|
|
// Only use a specific profile if it was requested.
|
|
return;
|
|
}
|
|
|
|
var audioCodec = state.OutputAudioCodec;
|
|
|
|
if (string.Equals(audioCodec, "copy", StringComparison.OrdinalIgnoreCase) && state.AudioStream != null)
|
|
{
|
|
audioCodec = state.AudioStream.Codec;
|
|
}
|
|
|
|
var videoCodec = state.OutputVideoCodec;
|
|
|
|
if (string.Equals(videoCodec, "copy", StringComparison.OrdinalIgnoreCase) && state.VideoStream != null)
|
|
{
|
|
videoCodec = state.VideoStream.Codec;
|
|
}
|
|
|
|
var mediaProfile = state.VideoRequest == null ?
|
|
profile.GetAudioMediaProfile(state.OutputContainer, audioCodec, state.OutputAudioChannels, state.OutputAudioBitrate) :
|
|
profile.GetVideoMediaProfile(state.OutputContainer,
|
|
audioCodec,
|
|
videoCodec,
|
|
state.OutputAudioBitrate,
|
|
state.OutputAudioChannels,
|
|
state.OutputWidth,
|
|
state.OutputHeight,
|
|
state.TargetVideoBitDepth,
|
|
state.OutputVideoBitrate,
|
|
state.TargetVideoProfile,
|
|
state.TargetVideoLevel,
|
|
state.TargetFramerate,
|
|
state.TargetPacketLength,
|
|
state.TargetTimestamp,
|
|
state.IsTargetAnamorphic);
|
|
|
|
if (mediaProfile != null)
|
|
{
|
|
state.MimeType = mediaProfile.MimeType;
|
|
}
|
|
|
|
var transcodingProfile = state.VideoRequest == null ?
|
|
profile.GetAudioTranscodingProfile(state.OutputContainer, audioCodec) :
|
|
profile.GetVideoTranscodingProfile(state.OutputContainer, audioCodec, videoCodec);
|
|
|
|
if (transcodingProfile != null)
|
|
{
|
|
state.EstimateContentLength = transcodingProfile.EstimateContentLength;
|
|
state.EnableMpegtsM2TsMode = transcodingProfile.EnableMpegtsM2TsMode;
|
|
state.TranscodeSeekInfo = transcodingProfile.TranscodeSeekInfo;
|
|
|
|
if (state.VideoRequest != null && string.IsNullOrWhiteSpace(state.VideoRequest.Profile))
|
|
{
|
|
state.VideoRequest.Profile = transcodingProfile.VideoProfile;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Adds the dlna headers.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <param name="responseHeaders">The response headers.</param>
|
|
/// <param name="isStaticallyStreamed">if set to <c>true</c> [is statically streamed].</param>
|
|
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
|
|
protected void AddDlnaHeaders(StreamState state, IDictionary<string, string> responseHeaders, bool isStaticallyStreamed)
|
|
{
|
|
var profile = state.DeviceProfile;
|
|
|
|
var transferMode = GetHeader("transferMode.dlna.org");
|
|
responseHeaders["transferMode.dlna.org"] = string.IsNullOrEmpty(transferMode) ? "Streaming" : transferMode;
|
|
responseHeaders["realTimeInfo.dlna.org"] = "DLNA.ORG_TLAG=*";
|
|
|
|
if (state.RunTimeTicks.HasValue && !isStaticallyStreamed && profile != null)
|
|
{
|
|
AddTimeSeekResponseHeaders(state, responseHeaders);
|
|
}
|
|
|
|
if (profile == null)
|
|
{
|
|
profile = DlnaManager.GetDefaultProfile();
|
|
}
|
|
|
|
var audioCodec = state.OutputAudioCodec;
|
|
|
|
if (string.Equals(audioCodec, "copy", StringComparison.OrdinalIgnoreCase) && state.AudioStream != null)
|
|
{
|
|
audioCodec = state.AudioStream.Codec;
|
|
}
|
|
|
|
if (state.VideoRequest == null)
|
|
{
|
|
responseHeaders["contentFeatures.dlna.org"] = new ContentFeatureBuilder(profile)
|
|
.BuildAudioHeader(
|
|
state.OutputContainer,
|
|
audioCodec,
|
|
state.OutputAudioBitrate,
|
|
state.OutputAudioSampleRate,
|
|
state.OutputAudioChannels,
|
|
isStaticallyStreamed,
|
|
state.RunTimeTicks,
|
|
state.TranscodeSeekInfo
|
|
);
|
|
}
|
|
else
|
|
{
|
|
var videoCodec = state.OutputVideoCodec;
|
|
|
|
if (string.Equals(videoCodec, "copy", StringComparison.OrdinalIgnoreCase) && state.VideoStream != null)
|
|
{
|
|
videoCodec = state.VideoStream.Codec;
|
|
}
|
|
|
|
responseHeaders["contentFeatures.dlna.org"] = new ContentFeatureBuilder(profile)
|
|
.BuildVideoHeader(
|
|
state.OutputContainer,
|
|
videoCodec,
|
|
audioCodec,
|
|
state.OutputWidth,
|
|
state.OutputHeight,
|
|
state.TargetVideoBitDepth,
|
|
state.OutputVideoBitrate,
|
|
state.OutputAudioBitrate,
|
|
state.OutputAudioChannels,
|
|
state.TargetTimestamp,
|
|
isStaticallyStreamed,
|
|
state.RunTimeTicks,
|
|
state.TargetVideoProfile,
|
|
state.TargetVideoLevel,
|
|
state.TargetFramerate,
|
|
state.TargetPacketLength,
|
|
state.TranscodeSeekInfo,
|
|
state.IsTargetAnamorphic
|
|
);
|
|
}
|
|
|
|
foreach (var item in responseHeaders)
|
|
{
|
|
Request.Response.AddHeader(item.Key, item.Value);
|
|
}
|
|
}
|
|
|
|
private void AddTimeSeekResponseHeaders(StreamState state, IDictionary<string, string> responseHeaders)
|
|
{
|
|
var runtimeSeconds = TimeSpan.FromTicks(state.RunTimeTicks.Value).TotalSeconds.ToString(UsCulture);
|
|
var startSeconds = TimeSpan.FromTicks(state.Request.StartTimeTicks ?? 0).TotalSeconds.ToString(UsCulture);
|
|
|
|
responseHeaders["TimeSeekRange.dlna.org"] = string.Format("npt={0}-{1}/{1}", startSeconds, runtimeSeconds);
|
|
responseHeaders["X-AvailableSeekRange"] = string.Format("1 npt={0}-{1}", startSeconds, runtimeSeconds);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Enforces the resolution limit.
|
|
/// </summary>
|
|
/// <param name="state">The state.</param>
|
|
/// <param name="videoRequest">The video request.</param>
|
|
private void EnforceResolutionLimit(StreamState state, VideoStreamRequest videoRequest)
|
|
{
|
|
// Switch the incoming params to be ceilings rather than fixed values
|
|
videoRequest.MaxWidth = videoRequest.MaxWidth ?? videoRequest.Width;
|
|
videoRequest.MaxHeight = videoRequest.MaxHeight ?? videoRequest.Height;
|
|
|
|
videoRequest.Width = null;
|
|
videoRequest.Height = null;
|
|
}
|
|
|
|
protected string GetInputModifier(StreamState state, bool genPts = true)
|
|
{
|
|
var inputModifier = string.Empty;
|
|
|
|
var probeSize = GetProbeSizeArgument(state);
|
|
inputModifier += " " + probeSize;
|
|
inputModifier = inputModifier.Trim();
|
|
|
|
var userAgentParam = GetUserAgentParam(state);
|
|
|
|
if (!string.IsNullOrWhiteSpace(userAgentParam))
|
|
{
|
|
inputModifier += " " + userAgentParam;
|
|
}
|
|
|
|
inputModifier = inputModifier.Trim();
|
|
|
|
inputModifier += " " + GetFastSeekCommandLineParameter(state.Request);
|
|
inputModifier = inputModifier.Trim();
|
|
|
|
if (state.VideoRequest != null && genPts)
|
|
{
|
|
inputModifier += " -fflags +genpts";
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(state.InputAudioSync))
|
|
{
|
|
inputModifier += " -async " + state.InputAudioSync;
|
|
}
|
|
|
|
if (!string.IsNullOrEmpty(state.InputVideoSync))
|
|
{
|
|
inputModifier += " -vsync " + state.InputVideoSync;
|
|
}
|
|
|
|
if (state.ReadInputAtNativeFramerate)
|
|
{
|
|
inputModifier += " -re";
|
|
}
|
|
|
|
return inputModifier;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Infers the audio codec based on the url
|
|
/// </summary>
|
|
/// <param name="url">The URL.</param>
|
|
/// <returns>System.Nullable{AudioCodecs}.</returns>
|
|
private string InferAudioCodec(string url)
|
|
{
|
|
var ext = Path.GetExtension(url);
|
|
|
|
if (string.Equals(ext, ".mp3", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "mp3";
|
|
}
|
|
if (string.Equals(ext, ".aac", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "aac";
|
|
}
|
|
if (string.Equals(ext, ".wma", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "wma";
|
|
}
|
|
if (string.Equals(ext, ".ogg", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vorbis";
|
|
}
|
|
if (string.Equals(ext, ".oga", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vorbis";
|
|
}
|
|
if (string.Equals(ext, ".ogv", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vorbis";
|
|
}
|
|
if (string.Equals(ext, ".webm", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vorbis";
|
|
}
|
|
if (string.Equals(ext, ".webma", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vorbis";
|
|
}
|
|
|
|
return "copy";
|
|
}
|
|
|
|
/// <summary>
|
|
/// Infers the video codec.
|
|
/// </summary>
|
|
/// <param name="url">The URL.</param>
|
|
/// <returns>System.Nullable{VideoCodecs}.</returns>
|
|
private string InferVideoCodec(string url)
|
|
{
|
|
var ext = Path.GetExtension(url);
|
|
|
|
if (string.Equals(ext, ".asf", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "wmv";
|
|
}
|
|
if (string.Equals(ext, ".webm", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "vpx";
|
|
}
|
|
if (string.Equals(ext, ".ogg", StringComparison.OrdinalIgnoreCase) || string.Equals(ext, ".ogv", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "theora";
|
|
}
|
|
if (string.Equals(ext, ".m3u8", StringComparison.OrdinalIgnoreCase) || string.Equals(ext, ".ts", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "h264";
|
|
}
|
|
|
|
return "copy";
|
|
}
|
|
}
|
|
}
|