1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
using System;
using System.Globalization;
using System.Threading.Tasks;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Devices;
using MediaBrowser.Controller.Dlna;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.MediaEncoding;
using MediaBrowser.Controller.Net;
using MediaBrowser.Model.Configuration;
using MediaBrowser.Model.Dlna;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.Serialization;
using MediaBrowser.Model.Services;
using Microsoft.Extensions.Logging;
namespace MediaBrowser.Api.Playback.Hls
{
[Route("/Videos/{Id}/live.m3u8", "GET")]
public class GetLiveHlsStream : VideoStreamRequest
{
}
/// <summary>
/// Class VideoHlsService
/// </summary>
[Authenticated]
public class VideoHlsService : BaseHlsService
{
public VideoHlsService(
ILogger<VideoHlsService> logger,
IServerConfigurationManager serverConfigurationManager,
IHttpResultFactory httpResultFactory,
IUserManager userManager,
ILibraryManager libraryManager,
IIsoManager isoManager,
IMediaEncoder mediaEncoder,
IFileSystem fileSystem,
IDlnaManager dlnaManager,
IDeviceManager deviceManager,
IMediaSourceManager mediaSourceManager,
IJsonSerializer jsonSerializer,
IAuthorizationContext authorizationContext,
EncodingHelper encodingHelper)
: base(
logger,
serverConfigurationManager,
httpResultFactory,
userManager,
libraryManager,
isoManager,
mediaEncoder,
fileSystem,
dlnaManager,
deviceManager,
mediaSourceManager,
jsonSerializer,
authorizationContext,
encodingHelper)
{
}
public Task<object> Get(GetLiveHlsStream request)
{
return ProcessRequestAsync(request, true);
}
/// <summary>
/// Gets the audio arguments.
/// </summary>
protected override string GetAudioArguments(StreamState state, EncodingOptions encodingOptions)
{
var codec = EncodingHelper.GetAudioEncoder(state);
if (EncodingHelper.IsCopyCodec(codec))
{
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(CultureInfo.InvariantCulture);
}
if (state.OutputAudioSampleRate.HasValue)
{
args += " -ar " + state.OutputAudioSampleRate.Value.ToString(CultureInfo.InvariantCulture);
}
args += " " + EncodingHelper.GetAudioFilterParam(state, encodingOptions, true);
return args;
}
/// <summary>
/// Gets the video arguments.
/// </summary>
protected override string GetVideoArguments(StreamState state, EncodingOptions encodingOptions)
{
if (!state.IsOutputVideo)
{
return string.Empty;
}
var codec = EncodingHelper.GetVideoEncoder(state, encodingOptions);
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))
{
// if h264_mp4toannexb is ever added, do not use it for live tv
if (state.VideoStream != null &&
!string.Equals(state.VideoStream.NalLengthSize, "0", StringComparison.OrdinalIgnoreCase))
{
string bitStreamArgs = EncodingHelper.GetBitStreamArgs(state.VideoStream);
if (!string.IsNullOrEmpty(bitStreamArgs))
{
args += " " + bitStreamArgs;
}
}
}
else
{
var keyFrameArg = string.Format(" -force_key_frames \"expr:gte(t,n_forced*{0})\"",
state.SegmentLength.ToString(CultureInfo.InvariantCulture));
var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode;
args += " " + EncodingHelper.GetVideoQualityParam(state, codec, encodingOptions, GetDefaultEncoderPreset()) + keyFrameArg;
// Add resolution params, if specified
if (!hasGraphicalSubs)
{
args += EncodingHelper.GetOutputSizeParam(state, encodingOptions, codec);
}
// This is for internal graphical subs
if (hasGraphicalSubs)
{
args += EncodingHelper.GetGraphicalSubtitleParam(state, encodingOptions, codec);
}
}
args += " -flags -global_header";
if (!string.IsNullOrEmpty(state.OutputVideoSync))
{
args += " -vsync " + state.OutputVideoSync;
}
args += EncodingHelper.GetOutputFFlags(state);
return args;
}
}
}
|
