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jellyfin/Jellyfin.Api/Controllers/DynamicHlsController.cs
crobibero 393666efcf fix merge conflicts
2020-08-04 20:30:45 -06:00

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using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
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.Common.Net;
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.Entities;
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;
using Microsoft.Net.Http.Headers;
namespace Jellyfin.Api.Controllers
{
/// <summary>
/// Dynamic hls controller.
/// </summary>
[Route("")]
[Authorize(Policy = Policies.DefaultAuthorization)]
public class DynamicHlsController : BaseJellyfinApiController
{
private readonly ILibraryManager _libraryManager;
private readonly IUserManager _userManager;
private readonly IDlnaManager _dlnaManager;
private readonly IAuthorizationContext _authContext;
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 INetworkManager _networkManager;
private readonly ILogger<DynamicHlsController> _logger;
private readonly EncodingHelper _encodingHelper;
private readonly TranscodingJobType _transcodingJobType = TranscodingJobType.Hls;
/// <summary>
/// Initializes a new instance of the <see cref="DynamicHlsController"/> class.
/// </summary>
/// <param name="libraryManager">Instance of the <see cref="ILibraryManager"/> interface.</param>
/// <param name="userManager">Instance of the <see cref="IUserManager"/> interface.</param>
/// <param name="dlnaManager">Instance of the <see cref="IDlnaManager"/> interface.</param>
/// <param name="authContext">Instance of the <see cref="IAuthorizationContext"/> 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="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="deviceManager">Instance of the <see cref="IDeviceManager"/> interface.</param>
/// <param name="transcodingJobHelper">Instance of the <see cref="TranscodingJobHelper"/> class.</param>
/// <param name="networkManager">Instance of the <see cref="INetworkManager"/> interface.</param>
/// <param name="logger">Instance of the <see cref="ILogger{DynamicHlsController}"/> interface.</param>
public DynamicHlsController(
ILibraryManager libraryManager,
IUserManager userManager,
IDlnaManager dlnaManager,
IAuthorizationContext authContext,
IMediaSourceManager mediaSourceManager,
IServerConfigurationManager serverConfigurationManager,
IMediaEncoder mediaEncoder,
IFileSystem fileSystem,
ISubtitleEncoder subtitleEncoder,
IConfiguration configuration,
IDeviceManager deviceManager,
TranscodingJobHelper transcodingJobHelper,
INetworkManager networkManager,
ILogger<DynamicHlsController> logger)
{
_libraryManager = libraryManager;
_userManager = userManager;
_dlnaManager = dlnaManager;
_authContext = authContext;
_mediaSourceManager = mediaSourceManager;
_serverConfigurationManager = serverConfigurationManager;
_mediaEncoder = mediaEncoder;
_fileSystem = fileSystem;
_subtitleEncoder = subtitleEncoder;
_configuration = configuration;
_deviceManager = deviceManager;
_transcodingJobHelper = transcodingJobHelper;
_networkManager = networkManager;
_logger = logger;
_encodingHelper = new EncodingHelper(_mediaEncoder, _fileSystem, _subtitleEncoder, _configuration);
}
/// <summary>
/// Gets a video hls playlist stream.
/// </summary>
/// <param name="itemId">The item id.</param>
/// <param name="container">The video container. Possible values are: ts, webm, asf, wmv, ogv, mp4, m4v, mkv, mpeg, mpg, avi, 3gp, wmv, wtv, m2ts, mov, iso, flv. </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="enableAdaptiveBitrateStreaming">Enable adaptive bitrate streaming.</param>
/// <response code="200">Video stream returned.</response>
/// <returns>A <see cref="FileResult"/> containing the playlist file.</returns>
[HttpGet("Videos/{itemId}/master.m3u8")]
[HttpHead("Videos/{itemId}/master.m3u8", Name = "HeadMasterHlsVideoPlaylist")]
[ProducesResponseType(StatusCodes.Status200OK)]
public async Task<ActionResult> GetMasterHlsVideoPlaylist(
[FromRoute] Guid itemId,
[FromRoute] 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, Required] 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] bool enableAdaptiveBitrateStreaming = true)
{
var isHeadRequest = Request.Method == System.Net.WebRequestMethods.Http.Head;
var cancellationTokenSource = new CancellationTokenSource();
var streamingRequest = new HlsVideoRequestDto
{
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,
EnableAdaptiveBitrateStreaming = enableAdaptiveBitrateStreaming
};
return await GetMasterPlaylistInternal(streamingRequest, isHeadRequest, enableAdaptiveBitrateStreaming, cancellationTokenSource)
.ConfigureAwait(false);
}
/// <summary>
/// Gets an audio hls playlist stream.
/// </summary>
/// <param name="itemId">The item id.</param>
/// <param name="container">The video container. Possible values are: ts, webm, asf, wmv, ogv, mp4, m4v, mkv, mpeg, mpg, avi, 3gp, wmv, wtv, m2ts, mov, iso, flv. </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="enableAdaptiveBitrateStreaming">Enable adaptive bitrate streaming.</param>
/// <response code="200">Audio stream returned.</response>
/// <returns>A <see cref="FileResult"/> containing the playlist file.</returns>
[HttpGet("Audio/{itemId}/master.m3u8")]
[HttpHead("Audio/{itemId}/master.m3u8", Name = "HeadMasterHlsAudioPlaylist")]
[ProducesResponseType(StatusCodes.Status200OK)]
public async Task<ActionResult> GetMasterHlsAudioPlaylist(
[FromRoute] Guid itemId,
[FromRoute] 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, Required] 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] bool enableAdaptiveBitrateStreaming = true)
{
var isHeadRequest = Request.Method == System.Net.WebRequestMethods.Http.Head;
var cancellationTokenSource = new CancellationTokenSource();
var streamingRequest = new HlsAudioRequestDto
{
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,
EnableAdaptiveBitrateStreaming = enableAdaptiveBitrateStreaming
};
return await GetMasterPlaylistInternal(streamingRequest, isHeadRequest, enableAdaptiveBitrateStreaming, cancellationTokenSource)
.ConfigureAwait(false);
}
/// <summary>
/// Gets a video stream using HTTP live streaming.
/// </summary>
/// <param name="itemId">The item id.</param>
/// <param name="container">The video container. Possible values are: ts, webm, asf, wmv, ogv, mp4, m4v, mkv, mpeg, mpg, avi, 3gp, wmv, wtv, m2ts, mov, iso, flv. </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>
/// <response code="200">Video stream returned.</response>
/// <returns>A <see cref="FileResult"/> containing the audio file.</returns>
[HttpGet("Videos/{itemId}/main.m3u8")]
[ProducesResponseType(StatusCodes.Status200OK)]
public async Task<ActionResult> GetVariantHlsVideoPlaylist(
[FromRoute] Guid itemId,
[FromRoute] 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)
{
var cancellationTokenSource = new CancellationTokenSource();
var 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
};
return await GetVariantPlaylistInternal(streamingRequest, "main", cancellationTokenSource)
.ConfigureAwait(false);
}
/// <summary>
/// Gets an audio stream using HTTP live streaming.
/// </summary>
/// <param name="itemId">The item id.</param>
/// <param name="container">The video container. Possible values are: ts, webm, asf, wmv, ogv, mp4, m4v, mkv, mpeg, mpg, avi, 3gp, wmv, wtv, m2ts, mov, iso, flv. </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>
/// <response code="200">Audio stream returned.</response>
/// <returns>A <see cref="FileResult"/> containing the audio file.</returns>
[HttpGet("Audio/{itemId}/main.m3u8")]
[ProducesResponseType(StatusCodes.Status200OK)]
public async Task<ActionResult> GetVariantHlsAudioPlaylist(
[FromRoute] Guid itemId,
[FromRoute] 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)
{
var cancellationTokenSource = new CancellationTokenSource();
var streamingRequest = new StreamingRequestDto
{
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
};
return await GetVariantPlaylistInternal(streamingRequest, "main", cancellationTokenSource)
.ConfigureAwait(false);
}
/// <summary>
/// Gets a video stream using HTTP live streaming.
/// </summary>
/// <param name="itemId">The item id.</param>
/// <param name="playlistId">The playlist id.</param>
/// <param name="segmentId">The segment id.</param>
/// <param name="container">The video container. Possible values are: ts, webm, asf, wmv, ogv, mp4, m4v, mkv, mpeg, mpg, avi, 3gp, wmv, wtv, m2ts, mov, iso, flv. </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>
/// <response code="200">Video stream returned.</response>
/// <returns>A <see cref="FileResult"/> containing the audio file.</returns>
[HttpGet("Videos/{itemId}/hls1/{playlistId}/{segmentId}.{container}")]
[ProducesResponseType(StatusCodes.Status200OK)]
[SuppressMessage("Microsoft.Performance", "CA1801:ReviewUnusedParameters", MessageId = "playlistId", Justification = "Imported from ServiceStack")]
public async Task<ActionResult> GetHlsVideoSegment(
[FromRoute] Guid itemId,
[FromRoute] string playlistId,
[FromRoute] int segmentId,
[FromRoute] 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)
{
var 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
};
return await GetDynamicSegment(streamingRequest, segmentId)
.ConfigureAwait(false);
}
/// <summary>
/// Gets a video stream using HTTP live streaming.
/// </summary>
/// <param name="itemId">The item id.</param>
/// <param name="playlistId">The playlist id.</param>
/// <param name="segmentId">The segment id.</param>
/// <param name="container">The video container. Possible values are: ts, webm, asf, wmv, ogv, mp4, m4v, mkv, mpeg, mpg, avi, 3gp, wmv, wtv, m2ts, mov, iso, flv. </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>
/// <response code="200">Video stream returned.</response>
/// <returns>A <see cref="FileResult"/> containing the audio file.</returns>
[HttpGet("Audio/{itemId}/hls1/{playlistId}/{segmentId}.{container}")]
[ProducesResponseType(StatusCodes.Status200OK)]
[SuppressMessage("Microsoft.Performance", "CA1801:ReviewUnusedParameters", MessageId = "playlistId", Justification = "Imported from ServiceStack")]
public async Task<ActionResult> GetHlsAudioSegment(
[FromRoute] Guid itemId,
[FromRoute] string playlistId,
[FromRoute] int segmentId,
[FromRoute] 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)
{
var streamingRequest = new StreamingRequestDto
{
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
};
return await GetDynamicSegment(streamingRequest, segmentId)
.ConfigureAwait(false);
}
private async Task<ActionResult> GetMasterPlaylistInternal(
StreamingRequestDto streamingRequest,
bool isHeadRequest,
bool enableAdaptiveBitrateStreaming,
CancellationTokenSource cancellationTokenSource)
{
using var state = await StreamingHelpers.GetStreamingState(
streamingRequest,
Request,
_authContext,
_mediaSourceManager,
_userManager,
_libraryManager,
_serverConfigurationManager,
_mediaEncoder,
_fileSystem,
_subtitleEncoder,
_configuration,
_dlnaManager,
_deviceManager,
_transcodingJobHelper,
_transcodingJobType,
cancellationTokenSource.Token)
.ConfigureAwait(false);
Response.Headers.Add(HeaderNames.Expires, "0");
if (isHeadRequest)
{
return new FileContentResult(Array.Empty<byte>(), MimeTypes.GetMimeType("playlist.m3u8"));
}
var totalBitrate = state.OutputAudioBitrate ?? 0 + state.OutputVideoBitrate ?? 0;
var builder = new StringBuilder();
builder.AppendLine("#EXTM3U");
var isLiveStream = state.IsSegmentedLiveStream;
var queryString = Request.QueryString.ToString();
// from universal audio service
if (queryString.IndexOf("SegmentContainer", StringComparison.OrdinalIgnoreCase) == -1 && !string.IsNullOrWhiteSpace(state.Request.SegmentContainer))
{
queryString += "&SegmentContainer=" + state.Request.SegmentContainer;
}
// from universal audio service
if (!string.IsNullOrWhiteSpace(state.Request.TranscodeReasons) && queryString.IndexOf("TranscodeReasons=", StringComparison.OrdinalIgnoreCase) == -1)
{
queryString += "&TranscodeReasons=" + state.Request.TranscodeReasons;
}
// Main stream
var playlistUrl = isLiveStream ? "live.m3u8" : "main.m3u8";
playlistUrl += queryString;
var subtitleStreams = state.MediaSource
.MediaStreams
.Where(i => i.IsTextSubtitleStream)
.ToList();
var subtitleGroup = subtitleStreams.Count > 0 && (state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Hls || state.VideoRequest!.EnableSubtitlesInManifest)
? "subs"
: null;
// If we're burning in subtitles then don't add additional subs to the manifest
if (state.SubtitleStream != null && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode)
{
subtitleGroup = null;
}
if (!string.IsNullOrWhiteSpace(subtitleGroup))
{
AddSubtitles(state, subtitleStreams, builder);
}
AppendPlaylist(builder, state, playlistUrl, totalBitrate, subtitleGroup);
if (EnableAdaptiveBitrateStreaming(state, isLiveStream, enableAdaptiveBitrateStreaming))
{
var requestedVideoBitrate = state.VideoRequest == null ? 0 : state.VideoRequest.VideoBitRate ?? 0;
// By default, vary by just 200k
var variation = GetBitrateVariation(totalBitrate);
var newBitrate = totalBitrate - variation;
var variantUrl = ReplaceBitrate(playlistUrl, requestedVideoBitrate, requestedVideoBitrate - variation);
AppendPlaylist(builder, state, variantUrl, newBitrate, subtitleGroup);
variation *= 2;
newBitrate = totalBitrate - variation;
variantUrl = ReplaceBitrate(playlistUrl, requestedVideoBitrate, requestedVideoBitrate - variation);
AppendPlaylist(builder, state, variantUrl, newBitrate, subtitleGroup);
}
return new FileContentResult(Encoding.UTF8.GetBytes(builder.ToString()), MimeTypes.GetMimeType("playlist.m3u8"));
}
private async Task<ActionResult> GetVariantPlaylistInternal(StreamingRequestDto streamingRequest, string name, CancellationTokenSource cancellationTokenSource)
{
using var state = await StreamingHelpers.GetStreamingState(
streamingRequest,
Request,
_authContext,
_mediaSourceManager,
_userManager,
_libraryManager,
_serverConfigurationManager,
_mediaEncoder,
_fileSystem,
_subtitleEncoder,
_configuration,
_dlnaManager,
_deviceManager,
_transcodingJobHelper,
_transcodingJobType,
cancellationTokenSource.Token)
.ConfigureAwait(false);
Response.Headers.Add(HeaderNames.Expires, "0");
var segmentLengths = GetSegmentLengths(state);
var builder = new StringBuilder();
builder.AppendLine("#EXTM3U");
builder.AppendLine("#EXT-X-PLAYLIST-TYPE:VOD");
builder.AppendLine("#EXT-X-VERSION:3");
builder.AppendLine("#EXT-X-TARGETDURATION:" + Math.Ceiling(segmentLengths.Length > 0 ? segmentLengths.Max() : state.SegmentLength).ToString(CultureInfo.InvariantCulture));
builder.AppendLine("#EXT-X-MEDIA-SEQUENCE:0");
var queryString = Request.QueryString;
var index = 0;
var segmentExtension = GetSegmentFileExtension(streamingRequest.SegmentContainer);
foreach (var length in segmentLengths)
{
builder.AppendLine("#EXTINF:" + length.ToString("0.0000", CultureInfo.InvariantCulture) + ", nodesc");
builder.AppendLine(
string.Format(
CultureInfo.InvariantCulture,
"hls1/{0}/{1}{2}{3}",
name,
index.ToString(CultureInfo.InvariantCulture),
segmentExtension,
queryString));
index++;
}
builder.AppendLine("#EXT-X-ENDLIST");
return new FileContentResult(Encoding.UTF8.GetBytes(builder.ToString()), MimeTypes.GetMimeType("playlist.m3u8"));
}
private async Task<ActionResult> GetDynamicSegment(StreamingRequestDto streamingRequest, int segmentId)
{
if ((streamingRequest.StartTimeTicks ?? 0) > 0)
{
throw new ArgumentException("StartTimeTicks is not allowed.");
}
var cancellationTokenSource = new CancellationTokenSource();
var cancellationToken = cancellationTokenSource.Token;
using var state = await StreamingHelpers.GetStreamingState(
streamingRequest,
Request,
_authContext,
_mediaSourceManager,
_userManager,
_libraryManager,
_serverConfigurationManager,
_mediaEncoder,
_fileSystem,
_subtitleEncoder,
_configuration,
_dlnaManager,
_deviceManager,
_transcodingJobHelper,
_transcodingJobType,
cancellationTokenSource.Token)
.ConfigureAwait(false);
var playlistPath = Path.ChangeExtension(state.OutputFilePath, ".m3u8");
var segmentPath = GetSegmentPath(state, playlistPath, segmentId);
var segmentExtension = GetSegmentFileExtension(state.Request.SegmentContainer);
TranscodingJobDto? job;
if (System.IO.File.Exists(segmentPath))
{
job = _transcodingJobHelper.OnTranscodeBeginRequest(playlistPath, _transcodingJobType);
_logger.LogDebug("returning {0} [it exists, try 1]", segmentPath);
return await GetSegmentResult(state, playlistPath, segmentPath, segmentExtension, segmentId, job, cancellationToken).ConfigureAwait(false);
}
var transcodingLock = _transcodingJobHelper.GetTranscodingLock(playlistPath);
await transcodingLock.WaitAsync(cancellationTokenSource.Token).ConfigureAwait(false);
var released = false;
var startTranscoding = false;
try
{
if (System.IO.File.Exists(segmentPath))
{
job = _transcodingJobHelper.OnTranscodeBeginRequest(playlistPath, _transcodingJobType);
transcodingLock.Release();
released = true;
_logger.LogDebug("returning {0} [it exists, try 2]", segmentPath);
return await GetSegmentResult(state, playlistPath, segmentPath, segmentExtension, segmentId, job, cancellationToken).ConfigureAwait(false);
}
else
{
var currentTranscodingIndex = GetCurrentTranscodingIndex(playlistPath, segmentExtension);
var segmentGapRequiringTranscodingChange = 24 / state.SegmentLength;
if (currentTranscodingIndex == null)
{
_logger.LogDebug("Starting transcoding because currentTranscodingIndex=null");
startTranscoding = true;
}
else if (segmentId < currentTranscodingIndex.Value)
{
_logger.LogDebug("Starting transcoding because requestedIndex={0} and currentTranscodingIndex={1}", segmentId, currentTranscodingIndex);
startTranscoding = true;
}
else if (segmentId - currentTranscodingIndex.Value > segmentGapRequiringTranscodingChange)
{
_logger.LogDebug("Starting transcoding because segmentGap is {0} and max allowed gap is {1}. requestedIndex={2}", segmentId - currentTranscodingIndex.Value, segmentGapRequiringTranscodingChange, segmentId);
startTranscoding = true;
}
if (startTranscoding)
{
// If the playlist doesn't already exist, startup ffmpeg
try
{
await _transcodingJobHelper.KillTranscodingJobs(streamingRequest.DeviceId, streamingRequest.PlaySessionId, p => false)
.ConfigureAwait(false);
if (currentTranscodingIndex.HasValue)
{
DeleteLastFile(playlistPath, segmentExtension, 0);
}
streamingRequest.StartTimeTicks = GetStartPositionTicks(state, segmentId);
state.WaitForPath = segmentPath;
var encodingOptions = _serverConfigurationManager.GetEncodingOptions();
job = await _transcodingJobHelper.StartFfMpeg(
state,
playlistPath,
GetCommandLineArguments(playlistPath, encodingOptions, state, true, segmentId),
Request,
_transcodingJobType,
cancellationTokenSource).ConfigureAwait(false);
}
catch
{
state.Dispose();
throw;
}
// await WaitForMinimumSegmentCount(playlistPath, 1, cancellationTokenSource.Token).ConfigureAwait(false);
}
else
{
job = _transcodingJobHelper.OnTranscodeBeginRequest(playlistPath, _transcodingJobType);
if (job?.TranscodingThrottler != null)
{
await job.TranscodingThrottler.UnpauseTranscoding().ConfigureAwait(false);
}
}
}
}
finally
{
if (!released)
{
transcodingLock.Release();
}
}
_logger.LogDebug("returning {0} [general case]", segmentPath);
job ??= _transcodingJobHelper.OnTranscodeBeginRequest(playlistPath, _transcodingJobType);
return await GetSegmentResult(state, playlistPath, segmentPath, segmentExtension, segmentId, job, cancellationToken).ConfigureAwait(false);
}
private void AddSubtitles(StreamState state, IEnumerable<MediaStream> subtitles, StringBuilder builder)
{
var selectedIndex = state.SubtitleStream == null || state.SubtitleDeliveryMethod != SubtitleDeliveryMethod.Hls ? (int?)null : state.SubtitleStream.Index;
const string Format = "#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID=\"subs\",NAME=\"{0}\",DEFAULT={1},FORCED={2},AUTOSELECT=YES,URI=\"{3}\",LANGUAGE=\"{4}\"";
foreach (var stream in subtitles)
{
var name = stream.DisplayTitle;
var isDefault = selectedIndex.HasValue && selectedIndex.Value == stream.Index;
var isForced = stream.IsForced;
var url = string.Format(
CultureInfo.InvariantCulture,
"{0}/Subtitles/{1}/subtitles.m3u8?SegmentLength={2}&api_key={3}",
state.Request.MediaSourceId,
stream.Index.ToString(CultureInfo.InvariantCulture),
30.ToString(CultureInfo.InvariantCulture),
ClaimHelpers.GetToken(Request.HttpContext.User));
var line = string.Format(
CultureInfo.InvariantCulture,
Format,
name,
isDefault ? "YES" : "NO",
isForced ? "YES" : "NO",
url,
stream.Language ?? "Unknown");
builder.AppendLine(line);
}
}
private void AppendPlaylist(StringBuilder builder, StreamState state, string url, int bitrate, string? subtitleGroup)
{
builder.Append("#EXT-X-STREAM-INF:BANDWIDTH=")
.Append(bitrate.ToString(CultureInfo.InvariantCulture))
.Append(",AVERAGE-BANDWIDTH=")
.Append(bitrate.ToString(CultureInfo.InvariantCulture));
AppendPlaylistCodecsField(builder, state);
AppendPlaylistResolutionField(builder, state);
AppendPlaylistFramerateField(builder, state);
if (!string.IsNullOrWhiteSpace(subtitleGroup))
{
builder.Append(",SUBTITLES=\"")
.Append(subtitleGroup)
.Append('"');
}
builder.Append(Environment.NewLine);
builder.AppendLine(url);
}
/// <summary>
/// Appends a CODECS field containing formatted strings of
/// the active streams output video and audio codecs.
/// </summary>
/// <seealso cref="AppendPlaylist(StringBuilder, StreamState, string, int, string)"/>
/// <seealso cref="GetPlaylistVideoCodecs(StreamState, string, int)"/>
/// <seealso cref="GetPlaylistAudioCodecs(StreamState)"/>
/// <param name="builder">StringBuilder to append the field to.</param>
/// <param name="state">StreamState of the current stream.</param>
private void AppendPlaylistCodecsField(StringBuilder builder, StreamState state)
{
// Video
string videoCodecs = string.Empty;
int? videoCodecLevel = GetOutputVideoCodecLevel(state);
if (!string.IsNullOrEmpty(state.ActualOutputVideoCodec) && videoCodecLevel.HasValue)
{
videoCodecs = GetPlaylistVideoCodecs(state, state.ActualOutputVideoCodec, videoCodecLevel.Value);
}
// Audio
string audioCodecs = string.Empty;
if (!string.IsNullOrEmpty(state.ActualOutputAudioCodec))
{
audioCodecs = GetPlaylistAudioCodecs(state);
}
StringBuilder codecs = new StringBuilder();
codecs.Append(videoCodecs)
.Append(',')
.Append(audioCodecs);
if (codecs.Length > 1)
{
builder.Append(",CODECS=\"")
.Append(codecs)
.Append('"');
}
}
/// <summary>
/// Appends a RESOLUTION field containing the resolution of the output stream.
/// </summary>
/// <seealso cref="AppendPlaylist(StringBuilder, StreamState, string, int, string)"/>
/// <param name="builder">StringBuilder to append the field to.</param>
/// <param name="state">StreamState of the current stream.</param>
private void AppendPlaylistResolutionField(StringBuilder builder, StreamState state)
{
if (state.OutputWidth.HasValue && state.OutputHeight.HasValue)
{
builder.Append(",RESOLUTION=")
.Append(state.OutputWidth.GetValueOrDefault())
.Append('x')
.Append(state.OutputHeight.GetValueOrDefault());
}
}
/// <summary>
/// Appends a FRAME-RATE field containing the framerate of the output stream.
/// </summary>
/// <seealso cref="AppendPlaylist(StringBuilder, StreamState, string, int, string)"/>
/// <param name="builder">StringBuilder to append the field to.</param>
/// <param name="state">StreamState of the current stream.</param>
private void AppendPlaylistFramerateField(StringBuilder builder, StreamState state)
{
double? framerate = null;
if (state.TargetFramerate.HasValue)
{
framerate = Math.Round(state.TargetFramerate.GetValueOrDefault(), 3);
}
else if (state.VideoStream?.RealFrameRate != null)
{
framerate = Math.Round(state.VideoStream.RealFrameRate.GetValueOrDefault(), 3);
}
if (framerate.HasValue)
{
builder.Append(",FRAME-RATE=")
.Append(framerate.Value);
}
}
private bool EnableAdaptiveBitrateStreaming(StreamState state, bool isLiveStream, bool enableAdaptiveBitrateStreaming)
{
// Within the local network this will likely do more harm than good.
var ip = RequestHelpers.NormalizeIp(Request.HttpContext.Connection.RemoteIpAddress).ToString();
if (_networkManager.IsInLocalNetwork(ip))
{
return false;
}
if (!enableAdaptiveBitrateStreaming)
{
return false;
}
if (isLiveStream || string.IsNullOrWhiteSpace(state.MediaPath))
{
// Opening live streams is so slow it's not even worth it
return false;
}
if (EncodingHelper.IsCopyCodec(state.OutputVideoCodec))
{
return false;
}
if (EncodingHelper.IsCopyCodec(state.OutputAudioCodec))
{
return false;
}
if (!state.IsOutputVideo)
{
return false;
}
// Having problems in android
return false;
// return state.VideoRequest.VideoBitRate.HasValue;
}
/// <summary>
/// Get the H.26X level of the output video stream.
/// </summary>
/// <param name="state">StreamState of the current stream.</param>
/// <returns>H.26X level of the output video stream.</returns>
private int? GetOutputVideoCodecLevel(StreamState state)
{
string? levelString;
if (EncodingHelper.IsCopyCodec(state.OutputVideoCodec)
&& state.VideoStream.Level.HasValue)
{
levelString = state.VideoStream?.Level.ToString();
}
else
{
levelString = state.GetRequestedLevel(state.ActualOutputVideoCodec);
}
if (int.TryParse(levelString, NumberStyles.Integer, CultureInfo.InvariantCulture, out var parsedLevel))
{
return parsedLevel;
}
return null;
}
/// <summary>
/// Gets a formatted string of the output audio codec, for use in the CODECS field.
/// </summary>
/// <seealso cref="AppendPlaylistCodecsField(StringBuilder, StreamState)"/>
/// <seealso cref="GetPlaylistVideoCodecs(StreamState, string, int)"/>
/// <param name="state">StreamState of the current stream.</param>
/// <returns>Formatted audio codec string.</returns>
private string GetPlaylistAudioCodecs(StreamState state)
{
if (string.Equals(state.ActualOutputAudioCodec, "aac", StringComparison.OrdinalIgnoreCase))
{
string? profile = state.GetRequestedProfiles("aac").FirstOrDefault();
return HlsCodecStringHelpers.GetAACString(profile);
}
if (string.Equals(state.ActualOutputAudioCodec, "mp3", StringComparison.OrdinalIgnoreCase))
{
return HlsCodecStringHelpers.GetMP3String();
}
if (string.Equals(state.ActualOutputAudioCodec, "ac3", StringComparison.OrdinalIgnoreCase))
{
return HlsCodecStringHelpers.GetAC3String();
}
if (string.Equals(state.ActualOutputAudioCodec, "eac3", StringComparison.OrdinalIgnoreCase))
{
return HlsCodecStringHelpers.GetEAC3String();
}
return string.Empty;
}
/// <summary>
/// Gets a formatted string of the output video codec, for use in the CODECS field.
/// </summary>
/// <seealso cref="AppendPlaylistCodecsField(StringBuilder, StreamState)"/>
/// <seealso cref="GetPlaylistAudioCodecs(StreamState)"/>
/// <param name="state">StreamState of the current stream.</param>
/// <param name="codec">Video codec.</param>
/// <param name="level">Video level.</param>
/// <returns>Formatted video codec string.</returns>
private string GetPlaylistVideoCodecs(StreamState state, string codec, int level)
{
if (level == 0)
{
// This is 0 when there's no requested H.26X level in the device profile
// and the source is not encoded in H.26X
_logger.LogError("Got invalid H.26X level when building CODECS field for HLS master playlist");
return string.Empty;
}
if (string.Equals(codec, "h264", StringComparison.OrdinalIgnoreCase))
{
string profile = state.GetRequestedProfiles("h264").FirstOrDefault();
return HlsCodecStringHelpers.GetH264String(profile, level);
}
if (string.Equals(codec, "h265", StringComparison.OrdinalIgnoreCase)
|| string.Equals(codec, "hevc", StringComparison.OrdinalIgnoreCase))
{
string profile = state.GetRequestedProfiles("h265").FirstOrDefault();
return HlsCodecStringHelpers.GetH265String(profile, level);
}
return string.Empty;
}
private int GetBitrateVariation(int bitrate)
{
// By default, vary by just 50k
var variation = 50000;
if (bitrate >= 10000000)
{
variation = 2000000;
}
else if (bitrate >= 5000000)
{
variation = 1500000;
}
else if (bitrate >= 3000000)
{
variation = 1000000;
}
else if (bitrate >= 2000000)
{
variation = 500000;
}
else if (bitrate >= 1000000)
{
variation = 300000;
}
else if (bitrate >= 600000)
{
variation = 200000;
}
else if (bitrate >= 400000)
{
variation = 100000;
}
return variation;
}
private string ReplaceBitrate(string url, int oldValue, int newValue)
{
return url.Replace(
"videobitrate=" + oldValue.ToString(CultureInfo.InvariantCulture),
"videobitrate=" + newValue.ToString(CultureInfo.InvariantCulture),
StringComparison.OrdinalIgnoreCase);
}
private double[] GetSegmentLengths(StreamState state)
{
var result = new List<double>();
var ticks = state.RunTimeTicks ?? 0;
var segmentLengthTicks = TimeSpan.FromSeconds(state.SegmentLength).Ticks;
while (ticks > 0)
{
var length = ticks >= segmentLengthTicks ? segmentLengthTicks : ticks;
result.Add(TimeSpan.FromTicks(length).TotalSeconds);
ticks -= length;
}
return result.ToArray();
}
private string GetCommandLineArguments(string outputPath, EncodingOptions encodingOptions, StreamState state, bool isEncoding, int startNumber)
{
var videoCodec = _encodingHelper.GetVideoEncoder(state, encodingOptions);
var threads = _encodingHelper.GetNumberOfThreads(state, encodingOptions, videoCodec);
if (state.BaseRequest.BreakOnNonKeyFrames)
{
// FIXME: this is actually a workaround, as ideally it really should be the client which decides whether non-keyframe
// breakpoints are supported; but current implementation always uses "ffmpeg input seeking" which is liable
// to produce a missing part of video stream before first keyframe is encountered, which may lead to
// awkward cases like a few starting HLS segments having no video whatsoever, which breaks hls.js
_logger.LogInformation("Current HLS implementation doesn't support non-keyframe breaks but one is requested, ignoring that request");
state.BaseRequest.BreakOnNonKeyFrames = false;
}
var inputModifier = _encodingHelper.GetInputModifier(state, encodingOptions);
// If isEncoding is true we're actually starting ffmpeg
var startNumberParam = isEncoding ? startNumber.ToString(CultureInfo.InvariantCulture) : "0";
var mapArgs = state.IsOutputVideo ? _encodingHelper.GetMapArgs(state) : string.Empty;
var outputTsArg = Path.Combine(Path.GetDirectoryName(outputPath), Path.GetFileNameWithoutExtension(outputPath)) + "%d" + GetSegmentFileExtension(state.Request.SegmentContainer);
var segmentFormat = GetSegmentFileExtension(state.Request.SegmentContainer).TrimStart('.');
if (string.Equals(segmentFormat, "ts", StringComparison.OrdinalIgnoreCase))
{
segmentFormat = "mpegts";
}
return string.Format(
CultureInfo.InvariantCulture,
"{0} {1} -map_metadata -1 -map_chapters -1 -threads {2} {3} {4} {5} -copyts -avoid_negative_ts disabled -f hls -max_delay 5000000 -hls_time {6} -individual_header_trailer 0 -hls_segment_type {7} -start_number {8} -hls_segment_filename \"{9}\" -hls_playlist_type vod -hls_list_size 0 -y \"{10}\"",
inputModifier,
_encodingHelper.GetInputArgument(state, encodingOptions),
threads,
mapArgs,
GetVideoArguments(state, encodingOptions, startNumber),
GetAudioArguments(state, encodingOptions),
state.SegmentLength.ToString(CultureInfo.InvariantCulture),
segmentFormat,
startNumberParam,
outputTsArg,
outputPath).Trim();
}
private string GetAudioArguments(StreamState state, EncodingOptions encodingOptions)
{
var audioCodec = _encodingHelper.GetAudioEncoder(state);
if (!state.IsOutputVideo)
{
if (EncodingHelper.IsCopyCodec(audioCodec))
{
return "-acodec copy";
}
var audioTranscodeParams = new List<string>();
audioTranscodeParams.Add("-acodec " + audioCodec);
if (state.OutputAudioBitrate.HasValue)
{
audioTranscodeParams.Add("-ab " + state.OutputAudioBitrate.Value.ToString(CultureInfo.InvariantCulture));
}
if (state.OutputAudioChannels.HasValue)
{
audioTranscodeParams.Add("-ac " + state.OutputAudioChannels.Value.ToString(CultureInfo.InvariantCulture));
}
if (state.OutputAudioSampleRate.HasValue)
{
audioTranscodeParams.Add("-ar " + state.OutputAudioSampleRate.Value.ToString(CultureInfo.InvariantCulture));
}
audioTranscodeParams.Add("-vn");
return string.Join(' ', audioTranscodeParams);
}
if (EncodingHelper.IsCopyCodec(audioCodec))
{
var videoCodec = _encodingHelper.GetVideoEncoder(state, encodingOptions);
if (EncodingHelper.IsCopyCodec(videoCodec) && state.EnableBreakOnNonKeyFrames(videoCodec))
{
return "-codec:a:0 copy -copypriorss:a:0 0";
}
return "-codec:a:0 copy";
}
var args = "-codec:a:0 " + audioCodec;
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;
}
private string GetVideoArguments(StreamState state, EncodingOptions encodingOptions, int startNumber)
{
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 (EncodingHelper.IsCopyCodec(codec))
{
if (state.VideoStream != null && !string.Equals(state.VideoStream.NalLengthSize, "0", StringComparison.OrdinalIgnoreCase))
{
string bitStreamArgs = _encodingHelper.GetBitStreamArgs(state.VideoStream);
if (!string.IsNullOrEmpty(bitStreamArgs))
{
args += " " + bitStreamArgs;
}
}
// args += " -flags -global_header";
}
else
{
var gopArg = string.Empty;
var keyFrameArg = string.Format(
CultureInfo.InvariantCulture,
" -force_key_frames:0 \"expr:gte(t,{0}+n_forced*{1})\"",
startNumber * state.SegmentLength,
state.SegmentLength);
var framerate = state.VideoStream?.RealFrameRate;
if (framerate.HasValue)
{
// This is to make sure keyframe interval is limited to our segment,
// as forcing keyframes is not enough.
// Example: we encoded half of desired length, then codec detected
// scene cut and inserted a keyframe; next forced keyframe would
// be created outside of segment, which breaks seeking
// -sc_threshold 0 is used to prevent the hardware encoder from post processing to break the set keyframe
gopArg = string.Format(
CultureInfo.InvariantCulture,
" -g {0} -keyint_min {0} -sc_threshold 0",
Math.Ceiling(state.SegmentLength * framerate.Value));
}
args += " " + _encodingHelper.GetVideoQualityParam(state, codec, encodingOptions, "veryfast");
// Unable to force key frames using these hw encoders, set key frames by GOP
if (string.Equals(codec, "h264_qsv", StringComparison.OrdinalIgnoreCase)
|| string.Equals(codec, "h264_nvenc", StringComparison.OrdinalIgnoreCase)
|| string.Equals(codec, "h264_amf", StringComparison.OrdinalIgnoreCase))
{
args += " " + gopArg;
}
else
{
args += " " + keyFrameArg + gopArg;
}
// args += " -mixed-refs 0 -refs 3 -x264opts b_pyramid=0:weightb=0:weightp=0";
var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode;
// This is for graphical subs
if (hasGraphicalSubs)
{
args += _encodingHelper.GetGraphicalSubtitleParam(state, encodingOptions, codec);
}
// Add resolution params, if specified
else
{
args += _encodingHelper.GetOutputSizeParam(state, encodingOptions, codec);
}
// -start_at_zero is necessary to use with -ss when seeking,
// otherwise the target position cannot be determined.
if (!(state.SubtitleStream != null && state.SubtitleStream.IsExternal && !state.SubtitleStream.IsTextSubtitleStream))
{
args += " -start_at_zero";
}
// args += " -flags -global_header";
}
if (!string.IsNullOrEmpty(state.OutputVideoSync))
{
args += " -vsync " + state.OutputVideoSync;
}
args += _encodingHelper.GetOutputFFlags(state);
return args;
}
private string GetSegmentFileExtension(string? segmentContainer)
{
if (!string.IsNullOrWhiteSpace(segmentContainer))
{
return "." + segmentContainer;
}
return ".ts";
}
private string GetSegmentPath(StreamState state, string playlist, int index)
{
var folder = Path.GetDirectoryName(playlist);
var filename = Path.GetFileNameWithoutExtension(playlist);
return Path.Combine(folder, filename + index.ToString(CultureInfo.InvariantCulture) + GetSegmentFileExtension(state.Request.SegmentContainer));
}
private async Task<ActionResult> GetSegmentResult(
StreamState state,
string playlistPath,
string segmentPath,
string segmentExtension,
int segmentIndex,
TranscodingJobDto? transcodingJob,
CancellationToken cancellationToken)
{
var segmentExists = System.IO.File.Exists(segmentPath);
if (segmentExists)
{
if (transcodingJob != null && transcodingJob.HasExited)
{
// Transcoding job is over, so assume all existing files are ready
_logger.LogDebug("serving up {0} as transcode is over", segmentPath);
return GetSegmentResult(state, segmentPath, segmentIndex, transcodingJob);
}
var currentTranscodingIndex = GetCurrentTranscodingIndex(playlistPath, segmentExtension);
// If requested segment is less than transcoding position, we can't transcode backwards, so assume it's ready
if (segmentIndex < currentTranscodingIndex)
{
_logger.LogDebug("serving up {0} as transcode index {1} is past requested point {2}", segmentPath, currentTranscodingIndex, segmentIndex);
return GetSegmentResult(state, segmentPath, segmentIndex, transcodingJob);
}
}
var nextSegmentPath = GetSegmentPath(state, playlistPath, segmentIndex + 1);
if (transcodingJob != null)
{
while (!cancellationToken.IsCancellationRequested && !transcodingJob.HasExited)
{
// To be considered ready, the segment file has to exist AND
// either the transcoding job should be done or next segment should also exist
if (segmentExists)
{
if (transcodingJob.HasExited || System.IO.File.Exists(nextSegmentPath))
{
_logger.LogDebug("serving up {0} as it deemed ready", segmentPath);
return GetSegmentResult(state, segmentPath, segmentIndex, transcodingJob);
}
}
else
{
segmentExists = System.IO.File.Exists(segmentPath);
if (segmentExists)
{
continue; // avoid unnecessary waiting if segment just became available
}
}
await Task.Delay(100, cancellationToken).ConfigureAwait(false);
}
if (!System.IO.File.Exists(segmentPath))
{
_logger.LogWarning("cannot serve {0} as transcoding quit before we got there", segmentPath);
}
else
{
_logger.LogDebug("serving {0} as it's on disk and transcoding stopped", segmentPath);
}
cancellationToken.ThrowIfCancellationRequested();
}
else
{
_logger.LogWarning("cannot serve {0} as it doesn't exist and no transcode is running", segmentPath);
}
return GetSegmentResult(state, segmentPath, segmentIndex, transcodingJob);
}
private ActionResult GetSegmentResult(StreamState state, string segmentPath, int index, TranscodingJobDto? transcodingJob)
{
var segmentEndingPositionTicks = GetEndPositionTicks(state, index);
Response.OnCompleted(() =>
{
_logger.LogDebug("finished serving {0}", segmentPath);
if (transcodingJob != null)
{
transcodingJob.DownloadPositionTicks = Math.Max(transcodingJob.DownloadPositionTicks ?? segmentEndingPositionTicks, segmentEndingPositionTicks);
_transcodingJobHelper.OnTranscodeEndRequest(transcodingJob);
}
return Task.CompletedTask;
});
return FileStreamResponseHelpers.GetStaticFileResult(segmentPath, MimeTypes.GetMimeType(segmentPath)!, false, this);
}
private long GetEndPositionTicks(StreamState state, int requestedIndex)
{
double startSeconds = 0;
var lengths = GetSegmentLengths(state);
if (requestedIndex >= lengths.Length)
{
var msg = string.Format(
CultureInfo.InvariantCulture,
"Invalid segment index requested: {0} - Segment count: {1}",
requestedIndex,
lengths.Length);
throw new ArgumentException(msg);
}
for (var i = 0; i <= requestedIndex; i++)
{
startSeconds += lengths[i];
}
return TimeSpan.FromSeconds(startSeconds).Ticks;
}
private int? GetCurrentTranscodingIndex(string playlist, string segmentExtension)
{
var job = _transcodingJobHelper.GetTranscodingJob(playlist, _transcodingJobType);
if (job == null || job.HasExited)
{
return null;
}
var file = GetLastTranscodingFile(playlist, segmentExtension, _fileSystem);
if (file == null)
{
return null;
}
var playlistFilename = Path.GetFileNameWithoutExtension(playlist);
var indexString = Path.GetFileNameWithoutExtension(file.Name).Substring(playlistFilename.Length);
return int.Parse(indexString, NumberStyles.Integer, CultureInfo.InvariantCulture);
}
private static FileSystemMetadata? GetLastTranscodingFile(string playlist, string segmentExtension, IFileSystem fileSystem)
{
var folder = Path.GetDirectoryName(playlist);
var filePrefix = Path.GetFileNameWithoutExtension(playlist) ?? string.Empty;
try
{
return fileSystem.GetFiles(folder, new[] { segmentExtension }, true, false)
.Where(i => Path.GetFileNameWithoutExtension(i.Name).StartsWith(filePrefix, StringComparison.OrdinalIgnoreCase))
.OrderByDescending(fileSystem.GetLastWriteTimeUtc)
.FirstOrDefault();
}
catch (IOException)
{
return null;
}
}
private void DeleteLastFile(string playlistPath, string segmentExtension, int retryCount)
{
var file = GetLastTranscodingFile(playlistPath, segmentExtension, _fileSystem);
if (file != null)
{
DeleteFile(file.FullName, retryCount);
}
}
private void DeleteFile(string path, int retryCount)
{
if (retryCount >= 5)
{
return;
}
_logger.LogDebug("Deleting partial HLS file {path}", path);
try
{
_fileSystem.DeleteFile(path);
}
catch (IOException ex)
{
_logger.LogError(ex, "Error deleting partial stream file(s) {path}", path);
var task = Task.Delay(100);
Task.WaitAll(task);
DeleteFile(path, retryCount + 1);
}
catch (Exception ex)
{
_logger.LogError(ex, "Error deleting partial stream file(s) {path}", path);
}
}
private long GetStartPositionTicks(StreamState state, int requestedIndex)
{
double startSeconds = 0;
var lengths = GetSegmentLengths(state);
if (requestedIndex >= lengths.Length)
{
var msg = string.Format(
CultureInfo.InvariantCulture,
"Invalid segment index requested: {0} - Segment count: {1}",
requestedIndex,
lengths.Length);
throw new ArgumentException(msg);
}
for (var i = 0; i < requestedIndex; i++)
{
startSeconds += lengths[i];
}
var position = TimeSpan.FromSeconds(startSeconds).Ticks;
return position;
}
}
}
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