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jellyfin/Jellyfin.Api/Controllers/DynamicHlsController.cs
nyanmisaka d7be6a5ab0 Tune x264/5 encoding params for realtime playback 
Some options that are too performance-intensive are disabled, while
others are left enabled to trade-off between real-time playback and quality.

Signed-off-by: nyanmisaka <nst799610810@gmail.com>
2024-08-30 00:57:00 +08:00

2077 lines
112 KiB
C#
Raw Blame History

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.Attributes;
using Jellyfin.Api.Extensions;
using Jellyfin.Api.Helpers;
using Jellyfin.Api.Models.StreamingDtos;
using Jellyfin.Data.Enums;
using Jellyfin.Extensions;
using Jellyfin.MediaEncoding.Hls.Playlist;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.MediaEncoding;
using MediaBrowser.Controller.Streaming;
using MediaBrowser.MediaEncoding.Encoder;
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.Logging;
namespace Jellyfin.Api.Controllers;
/// <summary>
/// Dynamic hls controller.
/// </summary>
[Route("")]
[Authorize]
public class DynamicHlsController : BaseJellyfinApiController
{
private const string DefaultVodEncoderPreset = "veryfast";
private const string DefaultEventEncoderPreset = "superfast";
private const TranscodingJobType TranscodingJobType = MediaBrowser.Controller.MediaEncoding.TranscodingJobType.Hls;
private readonly Version _minFFmpegFlacInMp4 = new Version(6, 0);
private readonly Version _minFFmpegX265BframeInFmp4 = new Version(7, 0, 1);
private readonly ILibraryManager _libraryManager;
private readonly IUserManager _userManager;
private readonly IMediaSourceManager _mediaSourceManager;
private readonly IServerConfigurationManager _serverConfigurationManager;
private readonly IMediaEncoder _mediaEncoder;
private readonly IFileSystem _fileSystem;
private readonly ITranscodeManager _transcodeManager;
private readonly ILogger<DynamicHlsController> _logger;
private readonly EncodingHelper _encodingHelper;
private readonly IDynamicHlsPlaylistGenerator _dynamicHlsPlaylistGenerator;
private readonly DynamicHlsHelper _dynamicHlsHelper;
private readonly EncodingOptions _encodingOptions;
/// <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="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="transcodeManager">Instance of the <see cref="ITranscodeManager"/> interface.</param>
/// <param name="logger">Instance of the <see cref="ILogger{DynamicHlsController}"/> interface.</param>
/// <param name="dynamicHlsHelper">Instance of <see cref="DynamicHlsHelper"/>.</param>
/// <param name="encodingHelper">Instance of <see cref="EncodingHelper"/>.</param>
/// <param name="dynamicHlsPlaylistGenerator">Instance of <see cref="IDynamicHlsPlaylistGenerator"/>.</param>
public DynamicHlsController(
ILibraryManager libraryManager,
IUserManager userManager,
IMediaSourceManager mediaSourceManager,
IServerConfigurationManager serverConfigurationManager,
IMediaEncoder mediaEncoder,
IFileSystem fileSystem,
ITranscodeManager transcodeManager,
ILogger<DynamicHlsController> logger,
DynamicHlsHelper dynamicHlsHelper,
EncodingHelper encodingHelper,
IDynamicHlsPlaylistGenerator dynamicHlsPlaylistGenerator)
{
_libraryManager = libraryManager;
_userManager = userManager;
_mediaSourceManager = mediaSourceManager;
_serverConfigurationManager = serverConfigurationManager;
_mediaEncoder = mediaEncoder;
_fileSystem = fileSystem;
_transcodeManager = transcodeManager;
_logger = logger;
_dynamicHlsHelper = dynamicHlsHelper;
_encodingHelper = encodingHelper;
_dynamicHlsPlaylistGenerator = dynamicHlsPlaylistGenerator;
_encodingOptions = serverConfigurationManager.GetEncodingOptions();
}
/// <summary>
/// Gets a hls live stream.
/// </summary>
/// <param name="itemId">The item id.</param>
/// <param name="container">The audio container.</param>
/// <param name="static">Optional. If true, the original file will be streamed statically without any encoding. Use either no url extension or the original file extension. true/false.</param>
/// <param name="params">The streaming parameters.</param>
/// <param name="tag">The tag.</param>
/// <param name="deviceProfileId">Optional. The dlna device profile id to utilize.</param>
/// <param name="playSessionId">The play session id.</param>
/// <param name="segmentContainer">The segment container.</param>
/// <param name="segmentLength">The segment length.</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 an audio codec to encode to, e.g. mp3.</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 anamorphic 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.</param>
/// <param name="subtitleCodec">Optional. Specify a subtitle codec to encode to.</param>
/// <param name="transcodeReasons">Optional. The transcoding reason.</param>
/// <param name="audioStreamIndex">Optional. The index of the audio stream to use. If omitted the first audio stream will be used.</param>
/// <param name="videoStreamIndex">Optional. The index of the video stream to use. If omitted the first video stream will be used.</param>
/// <param name="context">Optional. The <see cref="EncodingContext"/>.</param>
/// <param name="streamOptions">Optional. The streaming options.</param>
/// <param name="maxWidth">Optional. The max width.</param>
/// <param name="maxHeight">Optional. The max height.</param>
/// <param name="enableSubtitlesInManifest">Optional. Whether to enable subtitles in the manifest.</param>
/// <param name="enableAudioVbrEncoding">Optional. Whether to enable Audio Encoding.</param>
/// <response code="200">Hls live stream retrieved.</response>
/// <returns>A <see cref="FileResult"/> containing the hls file.</returns>
[HttpGet("Videos/{itemId}/live.m3u8")]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesPlaylistFile]
public async Task<ActionResult> GetLiveHlsStream(
[FromRoute, Required] Guid itemId,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? container,
[FromQuery] bool? @static,
[FromQuery] string? @params,
[FromQuery] string? tag,
[FromQuery, ParameterObsolete] string? deviceProfileId,
[FromQuery] string? playSessionId,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? segmentContainer,
[FromQuery] int? segmentLength,
[FromQuery] int? minSegments,
[FromQuery] string? mediaSourceId,
[FromQuery] string? deviceId,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] 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] [RegularExpression(EncodingHelper.ValidationRegex)] string? videoCodec,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? subtitleCodec,
[FromQuery] string? transcodeReasons,
[FromQuery] int? audioStreamIndex,
[FromQuery] int? videoStreamIndex,
[FromQuery] EncodingContext? context,
[FromQuery] Dictionary<string, string> streamOptions,
[FromQuery] int? maxWidth,
[FromQuery] int? maxHeight,
[FromQuery] bool? enableSubtitlesInManifest,
[FromQuery] bool enableAudioVbrEncoding = true)
{
VideoRequestDto streamingRequest = new VideoRequestDto
{
Id = itemId,
Container = container,
Static = @static ?? false,
Params = @params,
Tag = tag,
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 ?? false,
StartTimeTicks = startTimeTicks,
Width = width,
Height = height,
VideoBitRate = videoBitRate,
SubtitleStreamIndex = subtitleStreamIndex,
SubtitleMethod = subtitleMethod ?? SubtitleDeliveryMethod.Encode,
MaxRefFrames = maxRefFrames,
MaxVideoBitDepth = maxVideoBitDepth,
RequireAvc = requireAvc ?? false,
DeInterlace = deInterlace ?? false,
RequireNonAnamorphic = requireNonAnamorphic ?? false,
TranscodingMaxAudioChannels = transcodingMaxAudioChannels,
CpuCoreLimit = cpuCoreLimit,
LiveStreamId = liveStreamId,
EnableMpegtsM2TsMode = enableMpegtsM2TsMode ?? false,
VideoCodec = videoCodec,
SubtitleCodec = subtitleCodec,
TranscodeReasons = transcodeReasons,
AudioStreamIndex = audioStreamIndex,
VideoStreamIndex = videoStreamIndex,
Context = context ?? EncodingContext.Streaming,
StreamOptions = streamOptions,
MaxHeight = maxHeight,
MaxWidth = maxWidth,
EnableSubtitlesInManifest = enableSubtitlesInManifest ?? true,
EnableAudioVbrEncoding = enableAudioVbrEncoding
};
// CTS lifecycle is managed internally.
var cancellationTokenSource = new CancellationTokenSource();
// Due to CTS.Token calling ThrowIfDisposed (https://github.com/dotnet/runtime/issues/29970) we have to "cache" the token
// since it gets disposed when ffmpeg exits
var cancellationToken = cancellationTokenSource.Token;
var state = await StreamingHelpers.GetStreamingState(
streamingRequest,
HttpContext,
_mediaSourceManager,
_userManager,
_libraryManager,
_serverConfigurationManager,
_mediaEncoder,
_encodingHelper,
_transcodeManager,
TranscodingJobType,
cancellationToken)
.ConfigureAwait(false);
TranscodingJob? job = null;
var playlistPath = Path.ChangeExtension(state.OutputFilePath, ".m3u8");
if (!System.IO.File.Exists(playlistPath))
{
using (await _transcodeManager.LockAsync(playlistPath, cancellationToken).ConfigureAwait(false))
{
if (!System.IO.File.Exists(playlistPath))
{
// If the playlist doesn't already exist, startup ffmpeg
try
{
job = await _transcodeManager.StartFfMpeg(
state,
playlistPath,
GetCommandLineArguments(playlistPath, state, true, 0),
Request.HttpContext.User.GetUserId(),
TranscodingJobType,
cancellationTokenSource)
.ConfigureAwait(false);
job.IsLiveOutput = true;
}
catch
{
state.Dispose();
throw;
}
minSegments = state.MinSegments;
if (minSegments > 0)
{
await HlsHelpers.WaitForMinimumSegmentCount(playlistPath, minSegments, _logger, cancellationToken).ConfigureAwait(false);
}
}
}
}
job ??= _transcodeManager.OnTranscodeBeginRequest(playlistPath, TranscodingJobType);
if (job is not null)
{
_transcodeManager.OnTranscodeEndRequest(job);
}
var playlistText = HlsHelpers.GetLivePlaylistText(playlistPath, state);
return Content(playlistText, MimeTypes.GetMimeType("playlist.m3u8"));
}
/// <summary>
/// Gets a video hls playlist stream.
/// </summary>
/// <param name="itemId">The item id.</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 length.</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 an audio codec to encode to, e.g. mp3.</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="maxWidth">Optional. The maximum horizontal resolution of the encoded video.</param>
/// <param name="maxHeight">Optional. The maximum 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 anamorphic 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.</param>
/// <param name="subtitleCodec">Optional. Specify a subtitle codec to encode to.</param>
/// <param name="transcodeReasons">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>
/// <param name="enableTrickplay">Enable trickplay image playlists being added to master playlist.</param>
/// <param name="enableAudioVbrEncoding">Whether to enable Audio Encoding.</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)]
[ProducesPlaylistFile]
public async Task<ActionResult> GetMasterHlsVideoPlaylist(
[FromRoute, Required] Guid itemId,
[FromQuery] bool? @static,
[FromQuery] string? @params,
[FromQuery] string? tag,
[FromQuery, ParameterObsolete] string? deviceProfileId,
[FromQuery] string? playSessionId,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? segmentContainer,
[FromQuery] int? segmentLength,
[FromQuery] int? minSegments,
[FromQuery, Required] string mediaSourceId,
[FromQuery] string? deviceId,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] 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? maxWidth,
[FromQuery] int? maxHeight,
[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] [RegularExpression(EncodingHelper.ValidationRegex)] string? videoCodec,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? subtitleCodec,
[FromQuery] string? transcodeReasons,
[FromQuery] int? audioStreamIndex,
[FromQuery] int? videoStreamIndex,
[FromQuery] EncodingContext? context,
[FromQuery] Dictionary<string, string> streamOptions,
[FromQuery] bool enableAdaptiveBitrateStreaming = true,
[FromQuery] bool enableTrickplay = true,
[FromQuery] bool enableAudioVbrEncoding = true)
{
var streamingRequest = new HlsVideoRequestDto
{
Id = itemId,
Static = @static ?? false,
Params = @params,
Tag = tag,
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 ?? false,
StartTimeTicks = startTimeTicks,
Width = width,
Height = height,
MaxWidth = maxWidth,
MaxHeight = maxHeight,
VideoBitRate = videoBitRate,
SubtitleStreamIndex = subtitleStreamIndex,
SubtitleMethod = subtitleMethod ?? SubtitleDeliveryMethod.Encode,
MaxRefFrames = maxRefFrames,
MaxVideoBitDepth = maxVideoBitDepth,
RequireAvc = requireAvc ?? false,
DeInterlace = deInterlace ?? false,
RequireNonAnamorphic = requireNonAnamorphic ?? false,
TranscodingMaxAudioChannels = transcodingMaxAudioChannels,
CpuCoreLimit = cpuCoreLimit,
LiveStreamId = liveStreamId,
EnableMpegtsM2TsMode = enableMpegtsM2TsMode ?? false,
VideoCodec = videoCodec,
SubtitleCodec = subtitleCodec,
TranscodeReasons = transcodeReasons,
AudioStreamIndex = audioStreamIndex,
VideoStreamIndex = videoStreamIndex,
Context = context ?? EncodingContext.Streaming,
StreamOptions = streamOptions,
EnableAdaptiveBitrateStreaming = enableAdaptiveBitrateStreaming,
EnableTrickplay = enableTrickplay,
EnableAudioVbrEncoding = enableAudioVbrEncoding
};
return await _dynamicHlsHelper.GetMasterHlsPlaylist(TranscodingJobType, streamingRequest, enableAdaptiveBitrateStreaming).ConfigureAwait(false);
}
/// <summary>
/// Gets an audio hls playlist stream.
/// </summary>
/// <param name="itemId">The item id.</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 length.</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 an audio codec to encode to, e.g. mp3.</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="maxStreamingBitrate">Optional. The maximum streaming bitrate.</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 anamorphic 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.</param>
/// <param name="subtitleCodec">Optional. Specify a subtitle codec to encode to.</param>
/// <param name="transcodeReasons">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>
/// <param name="enableAudioVbrEncoding">Optional. Whether to enable Audio Encoding.</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)]
[ProducesPlaylistFile]
public async Task<ActionResult> GetMasterHlsAudioPlaylist(
[FromRoute, Required] Guid itemId,
[FromQuery] bool? @static,
[FromQuery] string? @params,
[FromQuery] string? tag,
[FromQuery, ParameterObsolete] string? deviceProfileId,
[FromQuery] string? playSessionId,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? segmentContainer,
[FromQuery] int? segmentLength,
[FromQuery] int? minSegments,
[FromQuery, Required] string mediaSourceId,
[FromQuery] string? deviceId,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? audioCodec,
[FromQuery] bool? enableAutoStreamCopy,
[FromQuery] bool? allowVideoStreamCopy,
[FromQuery] bool? allowAudioStreamCopy,
[FromQuery] bool? breakOnNonKeyFrames,
[FromQuery] int? audioSampleRate,
[FromQuery] int? maxAudioBitDepth,
[FromQuery] int? maxStreamingBitrate,
[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] [RegularExpression(EncodingHelper.ValidationRegex)] string? videoCodec,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? subtitleCodec,
[FromQuery] string? transcodeReasons,
[FromQuery] int? audioStreamIndex,
[FromQuery] int? videoStreamIndex,
[FromQuery] EncodingContext? context,
[FromQuery] Dictionary<string, string> streamOptions,
[FromQuery] bool enableAdaptiveBitrateStreaming = true,
[FromQuery] bool enableAudioVbrEncoding = true)
{
var streamingRequest = new HlsAudioRequestDto
{
Id = itemId,
Static = @static ?? false,
Params = @params,
Tag = tag,
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 ?? maxStreamingBitrate,
MaxAudioBitDepth = maxAudioBitDepth,
AudioChannels = audioChannels,
Profile = profile,
Level = level,
Framerate = framerate,
MaxFramerate = maxFramerate,
CopyTimestamps = copyTimestamps ?? false,
StartTimeTicks = startTimeTicks,
Width = width,
Height = height,
VideoBitRate = videoBitRate,
SubtitleStreamIndex = subtitleStreamIndex,
SubtitleMethod = subtitleMethod ?? SubtitleDeliveryMethod.Encode,
MaxRefFrames = maxRefFrames,
MaxVideoBitDepth = maxVideoBitDepth,
RequireAvc = requireAvc ?? false,
DeInterlace = deInterlace ?? false,
RequireNonAnamorphic = requireNonAnamorphic ?? false,
TranscodingMaxAudioChannels = transcodingMaxAudioChannels,
CpuCoreLimit = cpuCoreLimit,
LiveStreamId = liveStreamId,
EnableMpegtsM2TsMode = enableMpegtsM2TsMode ?? false,
VideoCodec = videoCodec,
SubtitleCodec = subtitleCodec,
TranscodeReasons = transcodeReasons,
AudioStreamIndex = audioStreamIndex,
VideoStreamIndex = videoStreamIndex,
Context = context ?? EncodingContext.Streaming,
StreamOptions = streamOptions,
EnableAdaptiveBitrateStreaming = enableAdaptiveBitrateStreaming,
EnableAudioVbrEncoding = enableAudioVbrEncoding
};
return await _dynamicHlsHelper.GetMasterHlsPlaylist(TranscodingJobType, streamingRequest, enableAdaptiveBitrateStreaming).ConfigureAwait(false);
}
/// <summary>
/// Gets a video stream using HTTP live streaming.
/// </summary>
/// <param name="itemId">The item id.</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 length.</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 an audio codec to encode to, e.g. mp3.</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="maxWidth">Optional. The maximum horizontal resolution of the encoded video.</param>
/// <param name="maxHeight">Optional. The maximum 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 anamorphic 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.</param>
/// <param name="subtitleCodec">Optional. Specify a subtitle codec to encode to.</param>
/// <param name="transcodeReasons">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="enableAudioVbrEncoding">Optional. Whether to enable Audio Encoding.</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)]
[ProducesPlaylistFile]
public async Task<ActionResult> GetVariantHlsVideoPlaylist(
[FromRoute, Required] Guid itemId,
[FromQuery] bool? @static,
[FromQuery] string? @params,
[FromQuery] string? tag,
[FromQuery, ParameterObsolete] string? deviceProfileId,
[FromQuery] string? playSessionId,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? segmentContainer,
[FromQuery] int? segmentLength,
[FromQuery] int? minSegments,
[FromQuery] string? mediaSourceId,
[FromQuery] string? deviceId,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] 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? maxWidth,
[FromQuery] int? maxHeight,
[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] [RegularExpression(EncodingHelper.ValidationRegex)] string? videoCodec,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? subtitleCodec,
[FromQuery] string? transcodeReasons,
[FromQuery] int? audioStreamIndex,
[FromQuery] int? videoStreamIndex,
[FromQuery] EncodingContext? context,
[FromQuery] Dictionary<string, string> streamOptions,
[FromQuery] bool enableAudioVbrEncoding = true)
{
using var cancellationTokenSource = new CancellationTokenSource();
var streamingRequest = new VideoRequestDto
{
Id = itemId,
Static = @static ?? false,
Params = @params,
Tag = tag,
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 ?? false,
StartTimeTicks = startTimeTicks,
Width = width,
Height = height,
MaxWidth = maxWidth,
MaxHeight = maxHeight,
VideoBitRate = videoBitRate,
SubtitleStreamIndex = subtitleStreamIndex,
SubtitleMethod = subtitleMethod ?? SubtitleDeliveryMethod.Encode,
MaxRefFrames = maxRefFrames,
MaxVideoBitDepth = maxVideoBitDepth,
RequireAvc = requireAvc ?? false,
DeInterlace = deInterlace ?? false,
RequireNonAnamorphic = requireNonAnamorphic ?? false,
TranscodingMaxAudioChannels = transcodingMaxAudioChannels,
CpuCoreLimit = cpuCoreLimit,
LiveStreamId = liveStreamId,
EnableMpegtsM2TsMode = enableMpegtsM2TsMode ?? false,
VideoCodec = videoCodec,
SubtitleCodec = subtitleCodec,
TranscodeReasons = transcodeReasons,
AudioStreamIndex = audioStreamIndex,
VideoStreamIndex = videoStreamIndex,
Context = context ?? EncodingContext.Streaming,
StreamOptions = streamOptions,
EnableAudioVbrEncoding = enableAudioVbrEncoding
};
return await GetVariantPlaylistInternal(streamingRequest, cancellationTokenSource)
.ConfigureAwait(false);
}
/// <summary>
/// Gets an audio stream using HTTP live streaming.
/// </summary>
/// <param name="itemId">The item id.</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 length.</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 an audio codec to encode to, e.g. mp3.</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="maxStreamingBitrate">Optional. The maximum streaming bitrate.</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 anamorphic 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.</param>
/// <param name="subtitleCodec">Optional. Specify a subtitle codec to encode to.</param>
/// <param name="transcodeReasons">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="enableAudioVbrEncoding">Optional. Whether to enable Audio Encoding.</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)]
[ProducesPlaylistFile]
public async Task<ActionResult> GetVariantHlsAudioPlaylist(
[FromRoute, Required] Guid itemId,
[FromQuery] bool? @static,
[FromQuery] string? @params,
[FromQuery] string? tag,
[FromQuery, ParameterObsolete] string? deviceProfileId,
[FromQuery] string? playSessionId,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? segmentContainer,
[FromQuery] int? segmentLength,
[FromQuery] int? minSegments,
[FromQuery] string? mediaSourceId,
[FromQuery] string? deviceId,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? audioCodec,
[FromQuery] bool? enableAutoStreamCopy,
[FromQuery] bool? allowVideoStreamCopy,
[FromQuery] bool? allowAudioStreamCopy,
[FromQuery] bool? breakOnNonKeyFrames,
[FromQuery] int? audioSampleRate,
[FromQuery] int? maxAudioBitDepth,
[FromQuery] int? maxStreamingBitrate,
[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] [RegularExpression(EncodingHelper.ValidationRegex)] string? videoCodec,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? subtitleCodec,
[FromQuery] string? transcodeReasons,
[FromQuery] int? audioStreamIndex,
[FromQuery] int? videoStreamIndex,
[FromQuery] EncodingContext? context,
[FromQuery] Dictionary<string, string> streamOptions,
[FromQuery] bool enableAudioVbrEncoding = true)
{
using var cancellationTokenSource = new CancellationTokenSource();
var streamingRequest = new StreamingRequestDto
{
Id = itemId,
Static = @static ?? false,
Params = @params,
Tag = tag,
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 ?? maxStreamingBitrate,
MaxAudioBitDepth = maxAudioBitDepth,
AudioChannels = audioChannels,
Profile = profile,
Level = level,
Framerate = framerate,
MaxFramerate = maxFramerate,
CopyTimestamps = copyTimestamps ?? false,
StartTimeTicks = startTimeTicks,
Width = width,
Height = height,
VideoBitRate = videoBitRate,
SubtitleStreamIndex = subtitleStreamIndex,
SubtitleMethod = subtitleMethod ?? SubtitleDeliveryMethod.Encode,
MaxRefFrames = maxRefFrames,
MaxVideoBitDepth = maxVideoBitDepth,
RequireAvc = requireAvc ?? false,
DeInterlace = deInterlace ?? false,
RequireNonAnamorphic = requireNonAnamorphic ?? false,
TranscodingMaxAudioChannels = transcodingMaxAudioChannels,
CpuCoreLimit = cpuCoreLimit,
LiveStreamId = liveStreamId,
EnableMpegtsM2TsMode = enableMpegtsM2TsMode ?? false,
VideoCodec = videoCodec,
SubtitleCodec = subtitleCodec,
TranscodeReasons = transcodeReasons,
AudioStreamIndex = audioStreamIndex,
VideoStreamIndex = videoStreamIndex,
Context = context ?? EncodingContext.Streaming,
StreamOptions = streamOptions,
EnableAudioVbrEncoding = enableAudioVbrEncoding
};
return await GetVariantPlaylistInternal(streamingRequest, 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="runtimeTicks">The position of the requested segment in ticks.</param>
/// <param name="actualSegmentLengthTicks">The length of the requested segment in ticks.</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 desired segment length.</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 an audio codec to encode to, e.g. mp3.</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="maxWidth">Optional. The maximum horizontal resolution of the encoded video.</param>
/// <param name="maxHeight">Optional. The maximum 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 anamorphic 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.</param>
/// <param name="subtitleCodec">Optional. Specify a subtitle codec to encode to.</param>
/// <param name="transcodeReasons">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="enableAudioVbrEncoding">Optional. Whether to enable Audio Encoding.</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)]
[ProducesVideoFile]
[SuppressMessage("Microsoft.Performance", "CA1801:ReviewUnusedParameters", MessageId = "playlistId", Justification = "Imported from ServiceStack")]
public async Task<ActionResult> GetHlsVideoSegment(
[FromRoute, Required] Guid itemId,
[FromRoute, Required] string playlistId,
[FromRoute, Required] int segmentId,
[FromRoute, Required] string container,
[FromQuery, Required] long runtimeTicks,
[FromQuery, Required] long actualSegmentLengthTicks,
[FromQuery] bool? @static,
[FromQuery] string? @params,
[FromQuery] string? tag,
[FromQuery, ParameterObsolete] string? deviceProfileId,
[FromQuery] string? playSessionId,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? segmentContainer,
[FromQuery] int? segmentLength,
[FromQuery] int? minSegments,
[FromQuery] string? mediaSourceId,
[FromQuery] string? deviceId,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] 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? maxWidth,
[FromQuery] int? maxHeight,
[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] [RegularExpression(EncodingHelper.ValidationRegex)] string? videoCodec,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? subtitleCodec,
[FromQuery] string? transcodeReasons,
[FromQuery] int? audioStreamIndex,
[FromQuery] int? videoStreamIndex,
[FromQuery] EncodingContext? context,
[FromQuery] Dictionary<string, string> streamOptions,
[FromQuery] bool enableAudioVbrEncoding = true)
{
var streamingRequest = new VideoRequestDto
{
Id = itemId,
CurrentRuntimeTicks = runtimeTicks,
ActualSegmentLengthTicks = actualSegmentLengthTicks,
Container = container,
Static = @static ?? false,
Params = @params,
Tag = tag,
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 ?? false,
StartTimeTicks = startTimeTicks,
Width = width,
Height = height,
MaxWidth = maxWidth,
MaxHeight = maxHeight,
VideoBitRate = videoBitRate,
SubtitleStreamIndex = subtitleStreamIndex,
SubtitleMethod = subtitleMethod ?? SubtitleDeliveryMethod.Encode,
MaxRefFrames = maxRefFrames,
MaxVideoBitDepth = maxVideoBitDepth,
RequireAvc = requireAvc ?? false,
DeInterlace = deInterlace ?? false,
RequireNonAnamorphic = requireNonAnamorphic ?? false,
TranscodingMaxAudioChannels = transcodingMaxAudioChannels,
CpuCoreLimit = cpuCoreLimit,
LiveStreamId = liveStreamId,
EnableMpegtsM2TsMode = enableMpegtsM2TsMode ?? false,
VideoCodec = videoCodec,
SubtitleCodec = subtitleCodec,
TranscodeReasons = transcodeReasons,
AudioStreamIndex = audioStreamIndex,
VideoStreamIndex = videoStreamIndex,
Context = context ?? EncodingContext.Streaming,
StreamOptions = streamOptions,
EnableAudioVbrEncoding = enableAudioVbrEncoding
};
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="runtimeTicks">The position of the requested segment in ticks.</param>
/// <param name="actualSegmentLengthTicks">The length of the requested segment in ticks.</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 length.</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 an audio codec to encode to, e.g. mp3.</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="maxStreamingBitrate">Optional. The maximum streaming bitrate.</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 anamorphic 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.</param>
/// <param name="subtitleCodec">Optional. Specify a subtitle codec to encode to.</param>
/// <param name="transcodeReasons">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="enableAudioVbrEncoding">Optional. Whether to enable Audio Encoding.</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)]
[ProducesAudioFile]
[SuppressMessage("Microsoft.Performance", "CA1801:ReviewUnusedParameters", MessageId = "playlistId", Justification = "Imported from ServiceStack")]
public async Task<ActionResult> GetHlsAudioSegment(
[FromRoute, Required] Guid itemId,
[FromRoute, Required] string playlistId,
[FromRoute, Required] int segmentId,
[FromRoute, Required] string container,
[FromQuery, Required] long runtimeTicks,
[FromQuery, Required] long actualSegmentLengthTicks,
[FromQuery] bool? @static,
[FromQuery] string? @params,
[FromQuery] string? tag,
[FromQuery, ParameterObsolete] string? deviceProfileId,
[FromQuery] string? playSessionId,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? segmentContainer,
[FromQuery] int? segmentLength,
[FromQuery] int? minSegments,
[FromQuery] string? mediaSourceId,
[FromQuery] string? deviceId,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? audioCodec,
[FromQuery] bool? enableAutoStreamCopy,
[FromQuery] bool? allowVideoStreamCopy,
[FromQuery] bool? allowAudioStreamCopy,
[FromQuery] bool? breakOnNonKeyFrames,
[FromQuery] int? audioSampleRate,
[FromQuery] int? maxAudioBitDepth,
[FromQuery] int? maxStreamingBitrate,
[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] [RegularExpression(EncodingHelper.ValidationRegex)] string? videoCodec,
[FromQuery] [RegularExpression(EncodingHelper.ValidationRegex)] string? subtitleCodec,
[FromQuery] string? transcodeReasons,
[FromQuery] int? audioStreamIndex,
[FromQuery] int? videoStreamIndex,
[FromQuery] EncodingContext? context,
[FromQuery] Dictionary<string, string> streamOptions,
[FromQuery] bool enableAudioVbrEncoding = true)
{
var streamingRequest = new StreamingRequestDto
{
Id = itemId,
Container = container,
CurrentRuntimeTicks = runtimeTicks,
ActualSegmentLengthTicks = actualSegmentLengthTicks,
Static = @static ?? false,
Params = @params,
Tag = tag,
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 ?? maxStreamingBitrate,
MaxAudioBitDepth = maxAudioBitDepth,
AudioChannels = audioChannels,
Profile = profile,
Level = level,
Framerate = framerate,
MaxFramerate = maxFramerate,
CopyTimestamps = copyTimestamps ?? false,
StartTimeTicks = startTimeTicks,
Width = width,
Height = height,
VideoBitRate = videoBitRate,
SubtitleStreamIndex = subtitleStreamIndex,
SubtitleMethod = subtitleMethod ?? SubtitleDeliveryMethod.Encode,
MaxRefFrames = maxRefFrames,
MaxVideoBitDepth = maxVideoBitDepth,
RequireAvc = requireAvc ?? false,
DeInterlace = deInterlace ?? false,
RequireNonAnamorphic = requireNonAnamorphic ?? false,
TranscodingMaxAudioChannels = transcodingMaxAudioChannels,
CpuCoreLimit = cpuCoreLimit,
LiveStreamId = liveStreamId,
EnableMpegtsM2TsMode = enableMpegtsM2TsMode ?? false,
VideoCodec = videoCodec,
SubtitleCodec = subtitleCodec,
TranscodeReasons = transcodeReasons,
AudioStreamIndex = audioStreamIndex,
VideoStreamIndex = videoStreamIndex,
Context = context ?? EncodingContext.Streaming,
StreamOptions = streamOptions,
EnableAudioVbrEncoding = enableAudioVbrEncoding
};
return await GetDynamicSegment(streamingRequest, segmentId)
.ConfigureAwait(false);
}
private async Task<ActionResult> GetVariantPlaylistInternal(StreamingRequestDto streamingRequest, CancellationTokenSource cancellationTokenSource)
{
using var state = await StreamingHelpers.GetStreamingState(
streamingRequest,
HttpContext,
_mediaSourceManager,
_userManager,
_libraryManager,
_serverConfigurationManager,
_mediaEncoder,
_encodingHelper,
_transcodeManager,
TranscodingJobType,
cancellationTokenSource.Token)
.ConfigureAwait(false);
var request = new CreateMainPlaylistRequest(
state.MediaPath,
state.SegmentLength * 1000,
state.RunTimeTicks ?? 0,
state.Request.SegmentContainer ?? string.Empty,
"hls1/main/",
Request.QueryString.ToString(),
EncodingHelper.IsCopyCodec(state.OutputVideoCodec));
var playlist = _dynamicHlsPlaylistGenerator.CreateMainPlaylist(request);
return new FileContentResult(Encoding.UTF8.GetBytes(playlist), 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.");
}
// CTS lifecycle is managed internally.
var cancellationTokenSource = new CancellationTokenSource();
var cancellationToken = cancellationTokenSource.Token;
var state = await StreamingHelpers.GetStreamingState(
streamingRequest,
HttpContext,
_mediaSourceManager,
_userManager,
_libraryManager,
_serverConfigurationManager,
_mediaEncoder,
_encodingHelper,
_transcodeManager,
TranscodingJobType,
cancellationToken)
.ConfigureAwait(false);
var playlistPath = Path.ChangeExtension(state.OutputFilePath, ".m3u8");
var segmentPath = GetSegmentPath(state, playlistPath, segmentId);
var segmentExtension = EncodingHelper.GetSegmentFileExtension(state.Request.SegmentContainer);
TranscodingJob? job;
if (System.IO.File.Exists(segmentPath))
{
job = _transcodeManager.OnTranscodeBeginRequest(playlistPath, TranscodingJobType);
_logger.LogDebug("returning {0} [it exists, try 1]", segmentPath);
return await GetSegmentResult(state, playlistPath, segmentPath, segmentExtension, segmentId, job, cancellationToken).ConfigureAwait(false);
}
using (await _transcodeManager.LockAsync(playlistPath, cancellationToken).ConfigureAwait(false))
{
var startTranscoding = false;
if (System.IO.File.Exists(segmentPath))
{
job = _transcodeManager.OnTranscodeBeginRequest(playlistPath, TranscodingJobType);
_logger.LogDebug("returning {0} [it exists, try 2]", segmentPath);
return await GetSegmentResult(state, playlistPath, segmentPath, segmentExtension, segmentId, job, cancellationToken).ConfigureAwait(false);
}
var currentTranscodingIndex = GetCurrentTranscodingIndex(playlistPath, segmentExtension);
var segmentGapRequiringTranscodingChange = 24 / state.SegmentLength;
if (segmentId == -1)
{
_logger.LogDebug("Starting transcoding because fmp4 init file is being requested");
startTranscoding = true;
segmentId = 0;
}
else if (currentTranscodingIndex is 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 _transcodeManager.KillTranscodingJobs(streamingRequest.DeviceId, streamingRequest.PlaySessionId, p => false)
.ConfigureAwait(false);
if (currentTranscodingIndex.HasValue)
{
await DeleteLastFile(playlistPath, segmentExtension, 0).ConfigureAwait(false);
}
streamingRequest.StartTimeTicks = streamingRequest.CurrentRuntimeTicks;
state.WaitForPath = segmentPath;
job = await _transcodeManager.StartFfMpeg(
state,
playlistPath,
GetCommandLineArguments(playlistPath, state, false, segmentId),
Request.HttpContext.User.GetUserId(),
TranscodingJobType,
cancellationTokenSource).ConfigureAwait(false);
}
catch
{
state.Dispose();
throw;
}
// await WaitForMinimumSegmentCount(playlistPath, 1, cancellationTokenSource.Token).ConfigureAwait(false);
}
else
{
job = _transcodeManager.OnTranscodeBeginRequest(playlistPath, TranscodingJobType);
if (job?.TranscodingThrottler is not null)
{
await job.TranscodingThrottler.UnpauseTranscoding().ConfigureAwait(false);
}
}
}
_logger.LogDebug("returning {0} [general case]", segmentPath);
job ??= _transcodeManager.OnTranscodeBeginRequest(playlistPath, TranscodingJobType);
return await GetSegmentResult(state, playlistPath, segmentPath, segmentExtension, segmentId, job, cancellationToken).ConfigureAwait(false);
}
private static double[] GetSegmentLengths(StreamState state)
=> GetSegmentLengthsInternal(state.RunTimeTicks ?? 0, state.SegmentLength);
internal static double[] GetSegmentLengthsInternal(long runtimeTicks, int segmentlength)
{
var segmentLengthTicks = TimeSpan.FromSeconds(segmentlength).Ticks;
var wholeSegments = runtimeTicks / segmentLengthTicks;
var remainingTicks = runtimeTicks % segmentLengthTicks;
var segmentsLen = wholeSegments + (remainingTicks == 0 ? 0 : 1);
var segments = new double[segmentsLen];
for (int i = 0; i < wholeSegments; i++)
{
segments[i] = segmentlength;
}
if (remainingTicks != 0)
{
segments[^1] = TimeSpan.FromTicks(remainingTicks).TotalSeconds;
}
return segments;
}
private string GetCommandLineArguments(string outputPath, StreamState state, bool isEventPlaylist, 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 mapArgs = state.IsOutputVideo ? _encodingHelper.GetMapArgs(state) : string.Empty;
var directory = Path.GetDirectoryName(outputPath) ?? throw new ArgumentException($"Provided path ({outputPath}) is not valid.", nameof(outputPath));
var outputFileNameWithoutExtension = Path.GetFileNameWithoutExtension(outputPath);
var outputPrefix = Path.Combine(directory, outputFileNameWithoutExtension);
var outputExtension = EncodingHelper.GetSegmentFileExtension(state.Request.SegmentContainer);
var outputTsArg = outputPrefix + "%d" + outputExtension;
var segmentFormat = string.Empty;
var segmentContainer = outputExtension.TrimStart('.');
var inputModifier = _encodingHelper.GetInputModifier(state, _encodingOptions, segmentContainer);
if (string.Equals(segmentContainer, "ts", StringComparison.OrdinalIgnoreCase))
{
segmentFormat = "mpegts";
}
else if (string.Equals(segmentContainer, "mp4", StringComparison.OrdinalIgnoreCase))
{
var outputFmp4HeaderArg = OperatingSystem.IsWindows() switch
{
// on Windows, the path of fmp4 header file needs to be configured
true => " -hls_fmp4_init_filename \"" + outputPrefix + "-1" + outputExtension + "\"",
// on Linux/Unix, ffmpeg generate fmp4 header file to m3u8 output folder
false => " -hls_fmp4_init_filename \"" + outputFileNameWithoutExtension + "-1" + outputExtension + "\""
};
segmentFormat = "fmp4" + outputFmp4HeaderArg;
}
else
{
_logger.LogError("Invalid HLS segment container: {SegmentContainer}, default to mpegts", segmentContainer);
segmentFormat = "mpegts";
}
var maxMuxingQueueSize = _encodingOptions.MaxMuxingQueueSize > 128
? _encodingOptions.MaxMuxingQueueSize.ToString(CultureInfo.InvariantCulture)
: "128";
var baseUrlParam = string.Empty;
if (isEventPlaylist)
{
baseUrlParam = string.Format(
CultureInfo.InvariantCulture,
" -hls_base_url \"hls/{0}/\"",
Path.GetFileNameWithoutExtension(outputPath));
}
var hlsArguments = $"-hls_playlist_type {(isEventPlaylist ? "event" : "vod")} -hls_list_size 0";
return string.Format(
CultureInfo.InvariantCulture,
"{0} {1} -map_metadata -1 -map_chapters -1 -threads {2} {3} {4} {5} -copyts -avoid_negative_ts disabled -max_muxing_queue_size {6} -f hls -max_delay 5000000 -hls_time {7} -hls_segment_type {8} -start_number {9}{10} -hls_segment_filename \"{11}\" {12} -y \"{13}\"",
inputModifier,
_encodingHelper.GetInputArgument(state, _encodingOptions, segmentContainer),
threads,
mapArgs,
GetVideoArguments(state, startNumber, isEventPlaylist, segmentContainer),
GetAudioArguments(state),
maxMuxingQueueSize,
state.SegmentLength.ToString(CultureInfo.InvariantCulture),
segmentFormat,
startNumber.ToString(CultureInfo.InvariantCulture),
baseUrlParam,
EncodingUtils.NormalizePath(outputTsArg),
hlsArguments,
EncodingUtils.NormalizePath(outputPath)).Trim();
}
/// <summary>
/// Gets the audio arguments for transcoding.
/// </summary>
/// <param name="state">The <see cref="StreamState"/>.</param>
/// <returns>The command line arguments for audio transcoding.</returns>
private string GetAudioArguments(StreamState state)
{
if (state.AudioStream is null)
{
return string.Empty;
}
var audioCodec = _encodingHelper.GetAudioEncoder(state);
var bitStreamArgs = EncodingHelper.GetAudioBitStreamArguments(state, state.Request.SegmentContainer, state.MediaSource.Container);
// opus, dts, truehd and flac (in FFmpeg 5 and older) are experimental in mp4 muxer
var strictArgs = string.Empty;
var actualOutputAudioCodec = state.ActualOutputAudioCodec;
if (string.Equals(actualOutputAudioCodec, "opus", StringComparison.OrdinalIgnoreCase)
|| string.Equals(actualOutputAudioCodec, "dts", StringComparison.OrdinalIgnoreCase)
|| string.Equals(actualOutputAudioCodec, "truehd", StringComparison.OrdinalIgnoreCase)
|| (string.Equals(actualOutputAudioCodec, "flac", StringComparison.OrdinalIgnoreCase)
&& _mediaEncoder.EncoderVersion < _minFFmpegFlacInMp4))
{
strictArgs = " -strict -2";
}
if (!state.IsOutputVideo)
{
var audioTranscodeParams = string.Empty;
// -vn to drop any video streams
audioTranscodeParams += "-vn";
if (EncodingHelper.IsCopyCodec(audioCodec))
{
return audioTranscodeParams + " -acodec copy" + bitStreamArgs + strictArgs;
}
audioTranscodeParams += " -acodec " + audioCodec + bitStreamArgs + strictArgs;
var audioBitrate = state.OutputAudioBitrate;
var audioChannels = state.OutputAudioChannels;
if (audioBitrate.HasValue && !EncodingHelper.LosslessAudioCodecs.Contains(state.ActualOutputAudioCodec, StringComparison.OrdinalIgnoreCase))
{
var vbrParam = _encodingHelper.GetAudioVbrModeParam(audioCodec, audioBitrate.Value, audioChannels ?? 2);
if (_encodingOptions.EnableAudioVbr && state.EnableAudioVbrEncoding && vbrParam is not null)
{
audioTranscodeParams += vbrParam;
}
else
{
audioTranscodeParams += " -ab " + audioBitrate.Value.ToString(CultureInfo.InvariantCulture);
}
}
if (audioChannels.HasValue)
{
audioTranscodeParams += " -ac " + audioChannels.Value.ToString(CultureInfo.InvariantCulture);
}
if (state.OutputAudioSampleRate.HasValue)
{
audioTranscodeParams += " -ar " + state.OutputAudioSampleRate.Value.ToString(CultureInfo.InvariantCulture);
}
return audioTranscodeParams;
}
if (EncodingHelper.IsCopyCodec(audioCodec))
{
var videoCodec = _encodingHelper.GetVideoEncoder(state, _encodingOptions);
var copyArgs = "-codec:a:0 copy" + bitStreamArgs + strictArgs;
if (EncodingHelper.IsCopyCodec(videoCodec) && state.EnableBreakOnNonKeyFrames(videoCodec))
{
return copyArgs + " -copypriorss:a:0 0";
}
return copyArgs;
}
var args = "-codec:a:0 " + audioCodec + bitStreamArgs + strictArgs;
var channels = state.OutputAudioChannels;
var useDownMixAlgorithm = DownMixAlgorithmsHelper.AlgorithmFilterStrings.ContainsKey((_encodingOptions.DownMixStereoAlgorithm, DownMixAlgorithmsHelper.InferChannelLayout(state.AudioStream)));
if (channels.HasValue
&& (channels.Value != 2
|| (state.AudioStream?.Channels != null && !useDownMixAlgorithm)))
{
args += " -ac " + channels.Value;
}
var bitrate = state.OutputAudioBitrate;
if (bitrate.HasValue && !EncodingHelper.LosslessAudioCodecs.Contains(actualOutputAudioCodec, StringComparison.OrdinalIgnoreCase))
{
var vbrParam = _encodingHelper.GetAudioVbrModeParam(audioCodec, bitrate.Value, channels ?? 2);
if (_encodingOptions.EnableAudioVbr && state.EnableAudioVbrEncoding && vbrParam is not null)
{
args += vbrParam;
}
else
{
args += " -ab " + bitrate.Value.ToString(CultureInfo.InvariantCulture);
}
}
if (state.OutputAudioSampleRate.HasValue)
{
args += " -ar " + state.OutputAudioSampleRate.Value.ToString(CultureInfo.InvariantCulture);
}
else if (state.AudioStream?.CodecTag is not null && state.AudioStream.CodecTag.Equals("ac-4", StringComparison.Ordinal))
{
// ac-4 audio tends to hava a super weird sample rate that will fail most encoders
// force resample it to 48KHz
args += " -ar 48000";
}
args += _encodingHelper.GetAudioFilterParam(state, _encodingOptions);
return args;
}
/// <summary>
/// Gets the video arguments for transcoding.
/// </summary>
/// <param name="state">The <see cref="StreamState"/>.</param>
/// <param name="startNumber">The first number in the hls sequence.</param>
/// <param name="isEventPlaylist">Whether the playlist is EVENT or VOD.</param>
/// <param name="segmentContainer">The segment container.</param>
/// <returns>The command line arguments for video transcoding.</returns>
private string GetVideoArguments(StreamState state, int startNumber, bool isEventPlaylist, string segmentContainer)
{
if (state.VideoStream is null)
{
return string.Empty;
}
if (!state.IsOutputVideo)
{
return string.Empty;
}
var codec = _encodingHelper.GetVideoEncoder(state, _encodingOptions);
var args = "-codec:v:0 " + codec;
if (string.Equals(state.ActualOutputVideoCodec, "h265", StringComparison.OrdinalIgnoreCase)
|| string.Equals(state.ActualOutputVideoCodec, "hevc", StringComparison.OrdinalIgnoreCase)
|| string.Equals(codec, "h265", StringComparison.OrdinalIgnoreCase)
|| string.Equals(codec, "hevc", StringComparison.OrdinalIgnoreCase))
{
var requestedRange = state.GetRequestedRangeTypes(state.ActualOutputVideoCodec);
var requestHasDOVI = requestedRange.Contains(VideoRangeType.DOVI.ToString(), StringComparison.OrdinalIgnoreCase);
var requestHasDOVIWithHDR10 = requestedRange.Contains(VideoRangeType.DOVIWithHDR10.ToString(), StringComparison.OrdinalIgnoreCase);
var requestHasDOVIWithHLG = requestedRange.Contains(VideoRangeType.DOVIWithHLG.ToString(), StringComparison.OrdinalIgnoreCase);
var requestHasDOVIWithSDR = requestedRange.Contains(VideoRangeType.DOVIWithSDR.ToString(), StringComparison.OrdinalIgnoreCase);
if (EncodingHelper.IsCopyCodec(codec)
&& ((state.VideoStream.VideoRangeType == VideoRangeType.DOVI && requestHasDOVI)
|| (state.VideoStream.VideoRangeType == VideoRangeType.DOVIWithHDR10 && requestHasDOVIWithHDR10)
|| (state.VideoStream.VideoRangeType == VideoRangeType.DOVIWithHLG && requestHasDOVIWithHLG)
|| (state.VideoStream.VideoRangeType == VideoRangeType.DOVIWithSDR && requestHasDOVIWithSDR)))
{
// Prefer dvh1 to dvhe
args += " -tag:v:0 dvh1 -strict -2";
}
else
{
// Prefer hvc1 to hev1
args += " -tag:v:0 hvc1";
}
}
// if (state.EnableMpegtsM2TsMode)
// {
// args += " -mpegts_m2ts_mode 1";
// }
// See if we can save come cpu cycles by avoiding encoding.
if (EncodingHelper.IsCopyCodec(codec))
{
// If h264_mp4toannexb is ever added, do not use it for live tv.
if (state.VideoStream is not null && !string.Equals(state.VideoStream.NalLengthSize, "0", StringComparison.OrdinalIgnoreCase))
{
string bitStreamArgs = EncodingHelper.GetBitStreamArgs(state.VideoStream);
if (!string.IsNullOrEmpty(bitStreamArgs))
{
args += " " + bitStreamArgs;
}
}
args += " -start_at_zero";
}
else
{
args += _encodingHelper.GetVideoQualityParam(state, codec, _encodingOptions, isEventPlaylist ? DefaultEventEncoderPreset : DefaultVodEncoderPreset);
// Set the key frame params for video encoding to match the hls segment time.
args += _encodingHelper.GetHlsVideoKeyFrameArguments(state, codec, state.SegmentLength, isEventPlaylist, startNumber);
// Currently b-frames in libx265 breaks the FMP4-HLS playback on iOS, disable it for now.
if (string.Equals(codec, "libx265", StringComparison.OrdinalIgnoreCase)
&& _mediaEncoder.EncoderVersion < _minFFmpegX265BframeInFmp4)
{
args += " -bf 0";
}
// video processing filters.
var videoProcessParam = _encodingHelper.GetVideoProcessingFilterParam(state, _encodingOptions, codec);
var negativeMapArgs = _encodingHelper.GetNegativeMapArgsByFilters(state, videoProcessParam);
args = negativeMapArgs + args + videoProcessParam;
// -start_at_zero is necessary to use with -ss when seeking,
// otherwise the target position cannot be determined.
if (state.SubtitleStream is not null)
{
// Disable start_at_zero for external graphical subs
if (!(state.SubtitleStream.IsExternal && !state.SubtitleStream.IsTextSubtitleStream))
{
args += " -start_at_zero";
}
}
}
// TODO why was this not enabled for VOD?
if (isEventPlaylist && string.Equals(segmentContainer, "ts", StringComparison.OrdinalIgnoreCase))
{
args += " -flags -global_header";
}
if (!string.IsNullOrEmpty(state.OutputVideoSync))
{
args += " -vsync " + state.OutputVideoSync;
}
args += _encodingHelper.GetOutputFFlags(state);
return args;
}
private string GetSegmentPath(StreamState state, string playlist, int index)
{
var folder = Path.GetDirectoryName(playlist) ?? throw new ArgumentException($"Provided path ({playlist}) is not valid.", nameof(playlist));
var filename = Path.GetFileNameWithoutExtension(playlist);
return Path.Combine(folder, filename + index.ToString(CultureInfo.InvariantCulture) + EncodingHelper.GetSegmentFileExtension(state.Request.SegmentContainer));
}
private async Task<ActionResult> GetSegmentResult(
StreamState state,
string playlistPath,
string segmentPath,
string segmentExtension,
int segmentIndex,
TranscodingJob? transcodingJob,
CancellationToken cancellationToken)
{
var segmentExists = System.IO.File.Exists(segmentPath);
if (segmentExists)
{
if (transcodingJob is not 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, 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, transcodingJob);
}
}
var nextSegmentPath = GetSegmentPath(state, playlistPath, segmentIndex + 1);
if (transcodingJob is not 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 {SegmentPath} as it deemed ready", segmentPath);
return GetSegmentResult(state, segmentPath, 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, transcodingJob);
}
private ActionResult GetSegmentResult(StreamState state, string segmentPath, TranscodingJob? transcodingJob)
{
var segmentEndingPositionTicks = state.Request.CurrentRuntimeTicks + state.Request.ActualSegmentLengthTicks;
Response.OnCompleted(() =>
{
_logger.LogDebug("Finished serving {SegmentPath}", segmentPath);
if (transcodingJob is not null)
{
transcodingJob.DownloadPositionTicks = Math.Max(transcodingJob.DownloadPositionTicks ?? segmentEndingPositionTicks, segmentEndingPositionTicks);
_transcodeManager.OnTranscodeEndRequest(transcodingJob);
}
return Task.CompletedTask;
});
return FileStreamResponseHelpers.GetStaticFileResult(segmentPath, MimeTypes.GetMimeType(segmentPath));
}
private int? GetCurrentTranscodingIndex(string playlist, string segmentExtension)
{
var job = _transcodeManager.GetTranscodingJob(playlist, TranscodingJobType);
if (job is null || job.HasExited)
{
return null;
}
var file = GetLastTranscodingFile(playlist, segmentExtension, _fileSystem);
if (file is null)
{
return null;
}
var playlistFilename = Path.GetFileNameWithoutExtension(playlist.AsSpan());
var indexString = Path.GetFileNameWithoutExtension(file.Name.AsSpan()).Slice(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) ?? throw new ArgumentException("Path can't be a root directory.", nameof(playlist));
var filePrefix = Path.GetFileNameWithoutExtension(playlist);
try
{
return fileSystem.GetFiles(folder, new[] { segmentExtension }, true, false)
.Where(i => Path.GetFileNameWithoutExtension(i.Name).StartsWith(filePrefix, StringComparison.OrdinalIgnoreCase))
.MaxBy(fileSystem.GetLastWriteTimeUtc);
}
catch (IOException)
{
return null;
}
}
private Task DeleteLastFile(string playlistPath, string segmentExtension, int retryCount)
{
var file = GetLastTranscodingFile(playlistPath, segmentExtension, _fileSystem);
if (file is null)
{
return Task.CompletedTask;
}
return DeleteFile(file.FullName, retryCount);
}
private async Task 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);
await Task.Delay(100).ConfigureAwait(false);
await DeleteFile(path, retryCount + 1).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.LogError(ex, "Error deleting partial stream file(s) {Path}", path);
}
}
}
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