lgladsden/jellyfin-server
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Move VideoHlsService to Jellyfin.Api

Browse Source
This commit is contained in:
David 2020-07-31 17:09:10 +02:00
parent 62fa72114c
commit 8a016e31f7
4 changed files with 598 additions and 167 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
Jellyfin.Api/Controllers/AudioController.cs
View File

@ -146,6 +146,7 @@ namespace Jellyfin.Api.Controllers
/// <param name="videoStreamIndex">Optional. The index of the video stream to use. If omitted the first video stream will be used.</param>
/// <param name="context">Optional. The <see cref="EncodingContext"/>.</param>
/// <param name="streamOptions">Optional. The streaming options.</param>
/// <response code="200">Audio file returned.</response>
/// <returns>A <see cref="FileResult"/> containing the audio file.</returns>
[HttpGet("{itemId}/{stream=stream}.{container?}")]
[HttpGet("{itemId}/stream")]

502
Jellyfin.Api/Controllers/VideoHlsController.cs Normal file
View File

@ -0,0 +1,502 @@
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
using Jellyfin.Api.Constants;
using Jellyfin.Api.Helpers;
using Jellyfin.Api.Models.PlaybackDtos;
using Jellyfin.Api.Models.StreamingDtos;
using MediaBrowser.Common.Configuration;
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.Net;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;
namespace Jellyfin.Api.Controllers
{
/// <summary>
/// The video hls controller.
/// </summary>
[Authorize(Policy = Policies.DefaultAuthorization)]
public class VideoHlsController : BaseJellyfinApiController
{
private const string DefaultEncoderPreset = "superfast";
private const TranscodingJobType TranscodingJobType = MediaBrowser.Controller.MediaEncoding.TranscodingJobType.Hls;
private readonly EncodingHelper _encodingHelper;
private readonly IDlnaManager _dlnaManager;
private readonly IAuthorizationContext _authContext;
private readonly IUserManager _userManager;
private readonly ILibraryManager _libraryManager;
private readonly IMediaSourceManager _mediaSourceManager;
private readonly IServerConfigurationManager _serverConfigurationManager;
private readonly IMediaEncoder _mediaEncoder;
private readonly IFileSystem _fileSystem;
private readonly ISubtitleEncoder _subtitleEncoder;
private readonly IConfiguration _configuration;
private readonly IDeviceManager _deviceManager;
private readonly TranscodingJobHelper _transcodingJobHelper;
private readonly ILogger _logger;
private readonly EncodingOptions _encodingOptions;
/// <summary>
/// Initializes a new instance of the <see cref="VideoHlsController"/> class.
/// </summary>
/// <param name="mediaEncoder">Instance of the <see cref="IMediaEncoder"/> interface.</param>
/// <param name="fileSystem">Instance of the <see cref="IFileSystem"/> interface.</param>
/// <param name="subtitleEncoder">Instance of the <see cref="ISubtitleEncoder"/> interface.</param>
/// <param name="configuration">Instance of the <see cref="IConfiguration"/> interface.</param>
/// <param name="dlnaManager">Instance of the <see cref="IDlnaManager"/> interface.</param>
/// <param name="userManger">Instance of the <see cref="IUserManager"/> interface.</param>
/// <param name="authorizationContext">Instance of the <see cref="IAuthorizationContext"/> interface.</param>
/// <param name="libraryManager">Instance of the <see cref="ILibraryManager"/> interface.</param>
/// <param name="mediaSourceManager">Instance of the <see cref="IMediaSourceManager"/> interface.</param>
/// <param name="serverConfigurationManager">Instance of the <see cref="IServerConfigurationManager"/> interface.</param>
/// <param name="deviceManager">Instance of the <see cref="IDeviceManager"/> interface.</param>
/// <param name="transcodingJobHelper">The <see cref="TranscodingJobHelper"/> singleton.</param>
/// <param name="logger">Instance of the <see cref="ILogger{VideoHlsController}"/>.</param>
public VideoHlsController(
IMediaEncoder mediaEncoder,
IFileSystem fileSystem,
ISubtitleEncoder subtitleEncoder,
IConfiguration configuration,
IDlnaManager dlnaManager,
IUserManager userManger,
IAuthorizationContext authorizationContext,
ILibraryManager libraryManager,
IMediaSourceManager mediaSourceManager,
IServerConfigurationManager serverConfigurationManager,
IDeviceManager deviceManager,
TranscodingJobHelper transcodingJobHelper,
ILogger<VideoHlsController> logger)
{
_encodingHelper = new EncodingHelper(mediaEncoder, fileSystem, subtitleEncoder, configuration);
_dlnaManager = dlnaManager;
_authContext = authorizationContext;
_userManager = userManger;
_libraryManager = libraryManager;
_mediaSourceManager = mediaSourceManager;
_serverConfigurationManager = serverConfigurationManager;
_mediaEncoder = mediaEncoder;
_fileSystem = fileSystem;
_subtitleEncoder = subtitleEncoder;
_configuration = configuration;
_deviceManager = deviceManager;
_transcodingJobHelper = transcodingJobHelper;
_logger = logger;
_encodingOptions = serverConfigurationManager.GetEncodingOptions();
}
/// <summary>
/// Gets a hls live stream.
/// </summary>
/// <param name="itemId">The item id.</param>
/// <param name="container">The audio container.</param>
/// <param name="static">Optional. If true, the original file will be streamed statically without any encoding. Use either no url extension or the original file extension. true/false.</param>
/// <param name="params">The streaming parameters.</param>
/// <param name="tag">The tag.</param>
/// <param name="deviceProfileId">Optional. The dlna device profile id to utilize.</param>
/// <param name="playSessionId">The play session id.</param>
/// <param name="segmentContainer">The segment container.</param>
/// <param name="segmentLength">The segment lenght.</param>
/// <param name="minSegments">The minimum number of segments.</param>
/// <param name="mediaSourceId">The media version id, if playing an alternate version.</param>
/// <param name="deviceId">The device id of the client requesting. Used to stop encoding processes when needed.</param>
/// <param name="audioCodec">Optional. Specify a audio codec to encode to, e.g. mp3. If omitted the server will auto-select using the url's extension. Options: aac, mp3, vorbis, wma.</param>
/// <param name="enableAutoStreamCopy">Whether or not to allow automatic stream copy if requested values match the original source. Defaults to true.</param>
/// <param name="allowVideoStreamCopy">Whether or not to allow copying of the video stream url.</param>
/// <param name="allowAudioStreamCopy">Whether or not to allow copying of the audio stream url.</param>
/// <param name="breakOnNonKeyFrames">Optional. Whether to break on non key frames.</param>
/// <param name="audioSampleRate">Optional. Specify a specific audio sample rate, e.g. 44100.</param>
/// <param name="maxAudioBitDepth">Optional. The maximum audio bit depth.</param>
/// <param name="audioBitRate">Optional. Specify an audio bitrate to encode to, e.g. 128000. If omitted this will be left to encoder defaults.</param>
/// <param name="audioChannels">Optional. Specify a specific number of audio channels to encode to, e.g. 2.</param>
/// <param name="maxAudioChannels">Optional. Specify a maximum number of audio channels to encode to, e.g. 2.</param>
/// <param name="profile">Optional. Specify a specific an encoder profile (varies by encoder), e.g. main, baseline, high.</param>
/// <param name="level">Optional. Specify a level for the encoder profile (varies by encoder), e.g. 3, 3.1.</param>
/// <param name="framerate">Optional. A specific video framerate to encode to, e.g. 23.976. Generally this should be omitted unless the device has specific requirements.</param>
/// <param name="maxFramerate">Optional. A specific maximum video framerate to encode to, e.g. 23.976. Generally this should be omitted unless the device has specific requirements.</param>
/// <param name="copyTimestamps">Whether or not to copy timestamps when transcoding with an offset. Defaults to false.</param>
/// <param name="startTimeTicks">Optional. Specify a starting offset, in ticks. 1 tick = 10000 ms.</param>
/// <param name="width">Optional. The fixed horizontal resolution of the encoded video.</param>
/// <param name="height">Optional. The fixed vertical resolution of the encoded video.</param>
/// <param name="videoBitRate">Optional. Specify a video bitrate to encode to, e.g. 500000. If omitted this will be left to encoder defaults.</param>
/// <param name="subtitleStreamIndex">Optional. The index of the subtitle stream to use. If omitted no subtitles will be used.</param>
/// <param name="subtitleMethod">Optional. Specify the subtitle delivery method.</param>
/// <param name="maxRefFrames">Optional.</param>
/// <param name="maxVideoBitDepth">Optional. The maximum video bit depth.</param>
/// <param name="requireAvc">Optional. Whether to require avc.</param>
/// <param name="deInterlace">Optional. Whether to deinterlace the video.</param>
/// <param name="requireNonAnamorphic">Optional. Whether to require a non anamporphic stream.</param>
/// <param name="transcodingMaxAudioChannels">Optional. The maximum number of audio channels to transcode.</param>
/// <param name="cpuCoreLimit">Optional. The limit of how many cpu cores to use.</param>
/// <param name="liveStreamId">The live stream id.</param>
/// <param name="enableMpegtsM2TsMode">Optional. Whether to enable the MpegtsM2Ts mode.</param>
/// <param name="videoCodec">Optional. Specify a video codec to encode to, e.g. h264. If omitted the server will auto-select using the url's extension. Options: h265, h264, mpeg4, theora, vpx, wmv.</param>
/// <param name="subtitleCodec">Optional. Specify a subtitle codec to encode to.</param>
/// <param name="transcodingReasons">Optional. The transcoding reason.</param>
/// <param name="audioStreamIndex">Optional. The index of the audio stream to use. If omitted the first audio stream will be used.</param>
/// <param name="videoStreamIndex">Optional. The index of the video stream to use. If omitted the first video stream will be used.</param>
/// <param name="context">Optional. The <see cref="EncodingContext"/>.</param>
/// <param name="streamOptions">Optional. The streaming options.</param>
/// <param name="maxWidth">Optional. The max width.</param>
/// <param name="maxHeight">Optional. The max height.</param>
/// <param name="enableSubtitlesInManifest">Optional. Whether to enable subtitles in the manifest.</param>
/// <response code="200">Hls live stream retreaved.</response>
/// <returns>A <see cref="FileResult"/> containing the hls file.</returns>
[HttpGet("/Videos/{itemId}/live.m3u8")]
[ProducesResponseType(StatusCodes.Status200OK)]
public async Task<ActionResult> GetLiveHlsStream(
[FromRoute] Guid itemId,
[FromQuery] string? container,
[FromQuery] bool? @static,
[FromQuery] string? @params,
[FromQuery] string? tag,
[FromQuery] string? deviceProfileId,
[FromQuery] string? playSessionId,
[FromQuery] string? segmentContainer,
[FromQuery] int? segmentLength,
[FromQuery] int? minSegments,
[FromQuery] string? mediaSourceId,
[FromQuery] string? deviceId,
[FromQuery] string? audioCodec,
[FromQuery] bool? enableAutoStreamCopy,
[FromQuery] bool? allowVideoStreamCopy,
[FromQuery] bool? allowAudioStreamCopy,
[FromQuery] bool? breakOnNonKeyFrames,
[FromQuery] int? audioSampleRate,
[FromQuery] int? maxAudioBitDepth,
[FromQuery] int? audioBitRate,
[FromQuery] int? audioChannels,
[FromQuery] int? maxAudioChannels,
[FromQuery] string? profile,
[FromQuery] string? level,
[FromQuery] float? framerate,
[FromQuery] float? maxFramerate,
[FromQuery] bool? copyTimestamps,
[FromQuery] long? startTimeTicks,
[FromQuery] int? width,
[FromQuery] int? height,
[FromQuery] int? videoBitRate,
[FromQuery] int? subtitleStreamIndex,
[FromQuery] SubtitleDeliveryMethod subtitleMethod,
[FromQuery] int? maxRefFrames,
[FromQuery] int? maxVideoBitDepth,
[FromQuery] bool? requireAvc,
[FromQuery] bool? deInterlace,
[FromQuery] bool? requireNonAnamorphic,
[FromQuery] int? transcodingMaxAudioChannels,
[FromQuery] int? cpuCoreLimit,
[FromQuery] string? liveStreamId,
[FromQuery] bool? enableMpegtsM2TsMode,
[FromQuery] string? videoCodec,
[FromQuery] string? subtitleCodec,
[FromQuery] string? transcodingReasons,
[FromQuery] int? audioStreamIndex,
[FromQuery] int? videoStreamIndex,
[FromQuery] EncodingContext context,
[FromQuery] Dictionary<string, string> streamOptions,
[FromQuery] int? maxWidth,
[FromQuery] int? maxHeight,
[FromQuery] bool? enableSubtitlesInManifest)
{
VideoRequestDto streamingRequest = new VideoRequestDto
{
Id = itemId,
Container = container,
Static = @static ?? true,
Params = @params,
Tag = tag,
DeviceProfileId = deviceProfileId,
PlaySessionId = playSessionId,
SegmentContainer = segmentContainer,
SegmentLength = segmentLength,
MinSegments = minSegments,
MediaSourceId = mediaSourceId,
DeviceId = deviceId,
AudioCodec = audioCodec,
EnableAutoStreamCopy = enableAutoStreamCopy ?? true,
AllowAudioStreamCopy = allowAudioStreamCopy ?? true,
AllowVideoStreamCopy = allowVideoStreamCopy ?? true,
BreakOnNonKeyFrames = breakOnNonKeyFrames ?? false,
AudioSampleRate = audioSampleRate,
MaxAudioChannels = maxAudioChannels,
AudioBitRate = audioBitRate,
MaxAudioBitDepth = maxAudioBitDepth,
AudioChannels = audioChannels,
Profile = profile,
Level = level,
Framerate = framerate,
MaxFramerate = maxFramerate,
CopyTimestamps = copyTimestamps ?? true,
StartTimeTicks = startTimeTicks,
Width = width,
Height = height,
VideoBitRate = videoBitRate,
SubtitleStreamIndex = subtitleStreamIndex,
SubtitleMethod = subtitleMethod,
MaxRefFrames = maxRefFrames,
MaxVideoBitDepth = maxVideoBitDepth,
RequireAvc = requireAvc ?? true,
DeInterlace = deInterlace ?? true,
RequireNonAnamorphic = requireNonAnamorphic ?? true,
TranscodingMaxAudioChannels = transcodingMaxAudioChannels,
CpuCoreLimit = cpuCoreLimit,
LiveStreamId = liveStreamId,
EnableMpegtsM2TsMode = enableMpegtsM2TsMode ?? true,
VideoCodec = videoCodec,
SubtitleCodec = subtitleCodec,
TranscodeReasons = transcodingReasons,
AudioStreamIndex = audioStreamIndex,
VideoStreamIndex = videoStreamIndex,
Context = context,
StreamOptions = streamOptions,
MaxHeight = maxHeight,
MaxWidth = maxWidth,
EnableSubtitlesInManifest = enableSubtitlesInManifest ?? true
};
var cancellationTokenSource = new CancellationTokenSource();
var state = await StreamingHelpers.GetStreamingState(
streamingRequest,
Request,
_authContext,
_mediaSourceManager,
_userManager,
_libraryManager,
_serverConfigurationManager,
_mediaEncoder,
_fileSystem,
_subtitleEncoder,
_configuration,
_dlnaManager,
_deviceManager,
_transcodingJobHelper,
TranscodingJobType,
cancellationTokenSource.Token)
.ConfigureAwait(false);
TranscodingJobDto? job = null;
var playlist = state.OutputFilePath;
if (!System.IO.File.Exists(playlist))
{
var transcodingLock = _transcodingJobHelper.GetTranscodingLock(playlist);
await transcodingLock.WaitAsync(cancellationTokenSource.Token).ConfigureAwait(false);
try
{
if (!System.IO.File.Exists(playlist))
{
// If the playlist doesn't already exist, startup ffmpeg
try
{
job = await _transcodingJobHelper.StartFfMpeg(
state,
playlist,
GetCommandLineArguments(playlist, state),
Request,
TranscodingJobType,
cancellationTokenSource)
.ConfigureAwait(false);
job.IsLiveOutput = true;
}
catch
{
state.Dispose();
throw;
}
minSegments = state.MinSegments;
if (minSegments > 0)
{
await HlsHelpers.WaitForMinimumSegmentCount(playlist, minSegments, _logger, cancellationTokenSource.Token).ConfigureAwait(false);
}
}
}
finally
{
transcodingLock.Release();
}
}
job ??= _transcodingJobHelper.OnTranscodeBeginRequest(playlist, TranscodingJobType);
if (job != null)
{
_transcodingJobHelper.OnTranscodeEndRequest(job);
}
var playlistText = HlsHelpers.GetLivePlaylistText(playlist, state.SegmentLength);
return Content(playlistText, MimeTypes.GetMimeType("playlist.m3u8"));
}
/// <summary>
/// Gets the command line arguments for ffmpeg.
/// </summary>
/// <param name="outputPath">The output path of the file.</param>
/// <param name="state">The <see cref="StreamState"/>.</param>
/// <returns>The command line arguments as a string.</returns>
private string GetCommandLineArguments(string outputPath, StreamState state)
{
var videoCodec = _encodingHelper.GetVideoEncoder(state, _encodingOptions);
var threads = _encodingHelper.GetNumberOfThreads(state, _encodingOptions, videoCodec);
var inputModifier = _encodingHelper.GetInputModifier(state, _encodingOptions);
var format = !string.IsNullOrWhiteSpace(state.Request.SegmentContainer) ? "." + state.Request.SegmentContainer : ".ts";
var outputTsArg = Path.Combine(Path.GetDirectoryName(outputPath), Path.GetFileNameWithoutExtension(outputPath)) + "%d" + format;
var segmentFormat = format.TrimStart('.');
if (string.Equals(segmentFormat, "ts", StringComparison.OrdinalIgnoreCase))
{
segmentFormat = "mpegts";
}
var baseUrlParam = string.Format(
CultureInfo.InvariantCulture,
"\"hls{0}\"",
Path.GetFileNameWithoutExtension(outputPath));
return string.Format(
CultureInfo.InvariantCulture,
"{0} {1} -map_metadata -1 -map_chapters -1 -threads {2} {3} {4} {5} -f segment -max_delay 5000000 -avoid_negative_ts disabled -start_at_zero -segment_time {6} {7} -individual_header_trailer 0 -segment_format {8} -segment_list_entry_prefix {9} -segment_list_type m3u8 -segment_start_number 0 -segment_list \"{10}\" -y \"{11}\"",
inputModifier,
_encodingHelper.GetInputArgument(state, _encodingOptions),
threads,
_encodingHelper.GetMapArgs(state),
GetVideoArguments(state),
GetAudioArguments(state),
state.SegmentLength.ToString(CultureInfo.InvariantCulture),
string.Empty,
segmentFormat,
baseUrlParam,
outputPath,
outputTsArg)
.Trim();
}
/// <summary>
/// Gets the audio arguments for transcoding.
/// </summary>
/// <param name="state">The <see cref="StreamState"/>.</param>
/// <returns>The command line arguments for audio transcoding.</returns>
private string GetAudioArguments(StreamState state)
{
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 for transcoding.
/// </summary>
/// <param name="state">The <see cref="StreamState"/>.</param>
/// <returns>The command line arguments for video transcoding.</returns>
private string GetVideoArguments(StreamState state)
{
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(
CultureInfo.InvariantCulture,
" -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, DefaultEncoderPreset) + 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;
}
}
}

95
Jellyfin.Api/Helpers/HlsHelpers.cs Normal file
View File

@ -0,0 +1,95 @@
using System;
using System.Globalization;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Model.IO;
using Microsoft.Extensions.Logging;
namespace Jellyfin.Api.Helpers
{
/// <summary>
/// The hls helpers.
/// </summary>
public static class HlsHelpers
{
/// <summary>
/// Waits for a minimum number of segments to be available.
/// </summary>
/// <param name="playlist">The playlist string.</param>
/// <param name="segmentCount">The segment count.</param>
/// <param name="logger">Instance of the <see cref="ILogger"/> interface.</param>
/// <param name="cancellationToken">The <see cref="CancellationToken"/>.</param>
/// <returns>A <see cref="Task"/> indicating the waiting process.</returns>
public static async Task WaitForMinimumSegmentCount(string playlist, int? segmentCount, ILogger logger, CancellationToken cancellationToken)
{
logger.LogDebug("Waiting for {0} segments in {1}", segmentCount, playlist);
while (!cancellationToken.IsCancellationRequested)
{
try
{
// Need to use FileShare.ReadWrite because we're reading the file at the same time it's being written
var fileStream = new FileStream(
playlist,
FileMode.Open,
FileAccess.Read,
FileShare.ReadWrite,
IODefaults.FileStreamBufferSize,
FileOptions.SequentialScan);
await using (fileStream.ConfigureAwait(false))
{
using var reader = new StreamReader(fileStream);
var count = 0;
while (!reader.EndOfStream)
{
var line = await reader.ReadLineAsync().ConfigureAwait(false);
if (line.IndexOf("#EXTINF:", StringComparison.OrdinalIgnoreCase) != -1)
{
count++;
if (count >= segmentCount)
{
logger.LogDebug("Finished waiting for {0} segments in {1}", segmentCount, playlist);
return;
}
}
}
}
await Task.Delay(100, cancellationToken).ConfigureAwait(false);
}
catch (IOException)
{
// May get an error if the file is locked
}
await Task.Delay(50, cancellationToken).ConfigureAwait(false);
}
}
/// <summary>
/// Gets the hls playlist text.
/// </summary>
/// <param name="path">The path to the playlist file.</param>
/// <param name="segmentLength">The segment length.</param>
/// <returns>The playlist text as a string.</returns>
public static string GetLivePlaylistText(string path, int segmentLength)
{
using var stream = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
using var reader = new StreamReader(stream);
var text = reader.ReadToEnd();
text = text.Replace("#EXTM3U", "#EXTM3U\n#EXT-X-PLAYLIST-TYPE:EVENT", StringComparison.InvariantCulture);
var newDuration = "#EXT-X-TARGETDURATION:" + segmentLength.ToString(CultureInfo.InvariantCulture);
text = text.Replace("#EXT-X-TARGETDURATION:" + (segmentLength - 1).ToString(CultureInfo.InvariantCulture), newDuration, StringComparison.OrdinalIgnoreCase);
// text = text.Replace("#EXT-X-TARGETDURATION:" + (segmentLength + 1).ToString(CultureInfo.InvariantCulture), newDuration, StringComparison.OrdinalIgnoreCase);
return text;
}
}
}

167
MediaBrowser.Api/Playback/Hls/VideoHlsService.cs
View File

@ -1,173 +1,6 @@
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;
}
}
}