using MediaBrowser.Common.IO ;
using MediaBrowser.Controller.Configuration ;
using MediaBrowser.Controller.Devices ;
using MediaBrowser.Controller.Dlna ;
using MediaBrowser.Controller.Library ;
using MediaBrowser.Controller.MediaEncoding ;
using MediaBrowser.Model.IO ;
using MediaBrowser.Model.Serialization ;
using ServiceStack ;
using System ;
using CommonIO ;
namespace MediaBrowser.Api.Playback.Hls
{
[Route("/Videos/{Id}/live.m3u8", "GET")]
[Api(Description = "Gets a video stream using HTTP live streaming.")]
public class GetLiveHlsStream : VideoStreamRequest
{
}
/// <summary>
/// Class VideoHlsService
/// </summary>
public class VideoHlsService : BaseHlsService
{
public VideoHlsService ( IServerConfigurationManager serverConfig , IUserManager userManager , ILibraryManager libraryManager , IIsoManager isoManager , IMediaEncoder mediaEncoder , IFileSystem fileSystem , IDlnaManager dlnaManager , ISubtitleEncoder subtitleEncoder , IDeviceManager deviceManager , IMediaSourceManager mediaSourceManager , IZipClient zipClient , IJsonSerializer jsonSerializer ) : base ( serverConfig , userManager , libraryManager , isoManager , mediaEncoder , fileSystem , dlnaManager , subtitleEncoder , deviceManager , mediaSourceManager , zipClient , jsonSerializer )
{
}
/// <summary>
/// Gets the specified request.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>System.Object.</returns>
public object Get ( GetHlsVideoStreamLegacy request )
{
return ProcessRequest ( request , false ) ;
}
public object Get ( GetLiveHlsStream request )
{
return ProcessRequest ( request , true ) ;
}
/// <summary>
/// Gets the audio arguments.
/// </summary>
/// <param name="state">The state.</param>
/// <returns>System.String.</returns>
protected override string GetAudioArguments ( StreamState state )
{
var codec = GetAudioEncoder ( state ) ;
if ( string . Equals ( codec , "copy" , StringComparison . OrdinalIgnoreCase ) )
{
return "-codec:a:0 copy" ;
}
var args = "-codec:a:0 " + codec ;
var channels = state . OutputAudioChannels ;
if ( channels . HasValue )
{
args + = " -ac " + channels . Value ;
}
var bitrate = state . OutputAudioBitrate ;
if ( bitrate . HasValue )
{
args + = " -ab " + bitrate . Value . ToString ( UsCulture ) ;
}
args + = " " + GetAudioFilterParam ( state , true ) ;
return args ;
}
/// <summary>
/// Gets the video arguments.
/// </summary>
/// <param name="state">The state.</param>
/// <returns>System.String.</returns>
protected override string GetVideoArguments ( StreamState state )
{
var codec = GetVideoEncoder ( state ) ;
var args = "-codec:v:0 " + codec ;
if ( state . EnableMpegtsM2TsMode )
{
args + = " -mpegts_m2ts_mode 1" ;
}
// See if we can save come cpu cycles by avoiding encoding
if ( codec . Equals ( "copy" , StringComparison . OrdinalIgnoreCase ) )
{
return state . VideoStream ! = null & & IsH264 ( state . VideoStream ) ?
args + " -bsf:v h264_mp4toannexb" :
args ;
}
var keyFrameArg = string . Format ( " -force_key_frames \"expr:gte(t,n_forced*{0})\"" ,
state . SegmentLength . ToString ( UsCulture ) ) ;
var hasGraphicalSubs = state . SubtitleStream ! = null & & ! state . SubtitleStream . IsTextSubtitleStream ;
args + = " " + GetVideoQualityParam ( state , GetH264Encoder ( state ) ) + keyFrameArg ;
// Add resolution params, if specified
if ( ! hasGraphicalSubs )
{
args + = GetOutputSizeParam ( state , codec ) ;
}
// This is for internal graphical subs
if ( hasGraphicalSubs )
{
args + = GetGraphicalSubtitleParam ( state , codec ) ;
}
return args ;
}
/// <summary>
/// Gets the segment file extension.
/// </summary>
/// <param name="state">The state.</param>
/// <returns>System.String.</returns>
protected override string GetSegmentFileExtension ( StreamState state )
{
return ".ts" ;
}
}
}