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Diffstat (limited to 'Jellyfin.Api/Controllers/VideoHlsController.cs')
| -rw-r--r-- | Jellyfin.Api/Controllers/VideoHlsController.cs | 586 |
1 files changed, 0 insertions, 586 deletions
diff --git a/Jellyfin.Api/Controllers/VideoHlsController.cs b/Jellyfin.Api/Controllers/VideoHlsController.cs deleted file mode 100644 index 36643e464..000000000 --- a/Jellyfin.Api/Controllers/VideoHlsController.cs +++ /dev/null @@ -1,586 +0,0 @@ -using System; -using System.Collections.Generic; -using System.ComponentModel.DataAnnotations; -using System.Globalization; -using System.IO; -using System.Threading; -using System.Threading.Tasks; -using Jellyfin.Api.Attributes; -using Jellyfin.Api.Constants; -using Jellyfin.Api.Helpers; -using Jellyfin.Api.Models.PlaybackDtos; -using Jellyfin.Api.Models.StreamingDtos; -using MediaBrowser.Common.Configuration; -using MediaBrowser.Controller.Configuration; -using MediaBrowser.Controller.Devices; -using MediaBrowser.Controller.Dlna; -using MediaBrowser.Controller.Library; -using MediaBrowser.Controller.MediaEncoding; -using MediaBrowser.Controller.Net; -using MediaBrowser.Model.Configuration; -using MediaBrowser.Model.Dlna; -using MediaBrowser.Model.Net; -using Microsoft.AspNetCore.Authorization; -using Microsoft.AspNetCore.Http; -using Microsoft.AspNetCore.Mvc; -using Microsoft.Extensions.Logging; - -namespace Jellyfin.Api.Controllers -{ - /// <summary> - /// The video hls controller. - /// </summary> - [Route("")] - [Authorize(Policy = Policies.DefaultAuthorization)] - public class VideoHlsController : BaseJellyfinApiController - { - private const string DefaultEncoderPreset = "superfast"; - private const TranscodingJobType TranscodingJobType = MediaBrowser.Controller.MediaEncoding.TranscodingJobType.Hls; - - private readonly EncodingHelper _encodingHelper; - private readonly IDlnaManager _dlnaManager; - private readonly IAuthorizationContext _authContext; - private readonly IUserManager _userManager; - private readonly ILibraryManager _libraryManager; - private readonly IMediaSourceManager _mediaSourceManager; - private readonly IServerConfigurationManager _serverConfigurationManager; - private readonly IMediaEncoder _mediaEncoder; - private readonly IDeviceManager _deviceManager; - private readonly TranscodingJobHelper _transcodingJobHelper; - private readonly ILogger<VideoHlsController> _logger; - private readonly EncodingOptions _encodingOptions; - - /// <summary> - /// Initializes a new instance of the <see cref="VideoHlsController"/> class. - /// </summary> - /// <param name="mediaEncoder">Instance of the <see cref="IMediaEncoder"/> interface.</param> - /// <param name="dlnaManager">Instance of the <see cref="IDlnaManager"/> interface.</param> - /// <param name="userManger">Instance of the <see cref="IUserManager"/> interface.</param> - /// <param name="authorizationContext">Instance of the <see cref="IAuthorizationContext"/> interface.</param> - /// <param name="libraryManager">Instance of the <see cref="ILibraryManager"/> interface.</param> - /// <param name="mediaSourceManager">Instance of the <see cref="IMediaSourceManager"/> interface.</param> - /// <param name="serverConfigurationManager">Instance of the <see cref="IServerConfigurationManager"/> interface.</param> - /// <param name="deviceManager">Instance of the <see cref="IDeviceManager"/> interface.</param> - /// <param name="transcodingJobHelper">The <see cref="TranscodingJobHelper"/> singleton.</param> - /// <param name="logger">Instance of the <see cref="ILogger{VideoHlsController}"/>.</param> - /// <param name="encodingHelper">Instance of <see cref="EncodingHelper"/>.</param> - public VideoHlsController( - IMediaEncoder mediaEncoder, - IDlnaManager dlnaManager, - IUserManager userManger, - IAuthorizationContext authorizationContext, - ILibraryManager libraryManager, - IMediaSourceManager mediaSourceManager, - IServerConfigurationManager serverConfigurationManager, - IDeviceManager deviceManager, - TranscodingJobHelper transcodingJobHelper, - ILogger<VideoHlsController> logger, - EncodingHelper encodingHelper) - { - _dlnaManager = dlnaManager; - _authContext = authorizationContext; - _userManager = userManger; - _libraryManager = libraryManager; - _mediaSourceManager = mediaSourceManager; - _serverConfigurationManager = serverConfigurationManager; - _mediaEncoder = mediaEncoder; - _deviceManager = deviceManager; - _transcodingJobHelper = transcodingJobHelper; - _logger = logger; - _encodingHelper = encodingHelper; - - _encodingOptions = serverConfigurationManager.GetEncodingOptions(); - } - - /// <summary> - /// Gets a hls live stream. - /// </summary> - /// <param name="itemId">The item id.</param> - /// <param name="container">The audio container.</param> - /// <param name="static">Optional. If true, the original file will be streamed statically without any encoding. Use either no url extension or the original file extension. true/false.</param> - /// <param name="params">The streaming parameters.</param> - /// <param name="tag">The tag.</param> - /// <param name="deviceProfileId">Optional. The dlna device profile id to utilize.</param> - /// <param name="playSessionId">The play session id.</param> - /// <param name="segmentContainer">The segment container.</param> - /// <param name="segmentLength">The segment lenght.</param> - /// <param name="minSegments">The minimum number of segments.</param> - /// <param name="mediaSourceId">The media version id, if playing an alternate version.</param> - /// <param name="deviceId">The device id of the client requesting. Used to stop encoding processes when needed.</param> - /// <param name="audioCodec">Optional. Specify a audio codec to encode to, e.g. mp3. If omitted the server will auto-select using the url's extension. Options: aac, mp3, vorbis, wma.</param> - /// <param name="enableAutoStreamCopy">Whether or not to allow automatic stream copy if requested values match the original source. Defaults to true.</param> - /// <param name="allowVideoStreamCopy">Whether or not to allow copying of the video stream url.</param> - /// <param name="allowAudioStreamCopy">Whether or not to allow copying of the audio stream url.</param> - /// <param name="breakOnNonKeyFrames">Optional. Whether to break on non key frames.</param> - /// <param name="audioSampleRate">Optional. Specify a specific audio sample rate, e.g. 44100.</param> - /// <param name="maxAudioBitDepth">Optional. The maximum audio bit depth.</param> - /// <param name="audioBitRate">Optional. Specify an audio bitrate to encode to, e.g. 128000. If omitted this will be left to encoder defaults.</param> - /// <param name="audioChannels">Optional. Specify a specific number of audio channels to encode to, e.g. 2.</param> - /// <param name="maxAudioChannels">Optional. Specify a maximum number of audio channels to encode to, e.g. 2.</param> - /// <param name="profile">Optional. Specify a specific an encoder profile (varies by encoder), e.g. main, baseline, high.</param> - /// <param name="level">Optional. Specify a level for the encoder profile (varies by encoder), e.g. 3, 3.1.</param> - /// <param name="framerate">Optional. A specific video framerate to encode to, e.g. 23.976. Generally this should be omitted unless the device has specific requirements.</param> - /// <param name="maxFramerate">Optional. A specific maximum video framerate to encode to, e.g. 23.976. Generally this should be omitted unless the device has specific requirements.</param> - /// <param name="copyTimestamps">Whether or not to copy timestamps when transcoding with an offset. Defaults to false.</param> - /// <param name="startTimeTicks">Optional. Specify a starting offset, in ticks. 1 tick = 10000 ms.</param> - /// <param name="width">Optional. The fixed horizontal resolution of the encoded video.</param> - /// <param name="height">Optional. The fixed vertical resolution of the encoded video.</param> - /// <param name="videoBitRate">Optional. Specify a video bitrate to encode to, e.g. 500000. If omitted this will be left to encoder defaults.</param> - /// <param name="subtitleStreamIndex">Optional. The index of the subtitle stream to use. If omitted no subtitles will be used.</param> - /// <param name="subtitleMethod">Optional. Specify the subtitle delivery method.</param> - /// <param name="maxRefFrames">Optional.</param> - /// <param name="maxVideoBitDepth">Optional. The maximum video bit depth.</param> - /// <param name="requireAvc">Optional. Whether to require avc.</param> - /// <param name="deInterlace">Optional. Whether to deinterlace the video.</param> - /// <param name="requireNonAnamorphic">Optional. Whether to require a non 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. If omitted the server will auto-select using the url's extension. Options: h265, h264, mpeg4, theora, vp8, vp9, vpx (deprecated), wmv.</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> - /// <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] string? container, - [FromQuery] bool? @static, - [FromQuery] string? @params, - [FromQuery] string? tag, - [FromQuery] string? deviceProfileId, - [FromQuery] string? playSessionId, - [FromQuery] string? segmentContainer, - [FromQuery] int? segmentLength, - [FromQuery] int? minSegments, - [FromQuery] string? mediaSourceId, - [FromQuery] string? deviceId, - [FromQuery] string? audioCodec, - [FromQuery] bool? enableAutoStreamCopy, - [FromQuery] bool? allowVideoStreamCopy, - [FromQuery] bool? allowAudioStreamCopy, - [FromQuery] bool? breakOnNonKeyFrames, - [FromQuery] int? audioSampleRate, - [FromQuery] int? maxAudioBitDepth, - [FromQuery] int? audioBitRate, - [FromQuery] int? audioChannels, - [FromQuery] int? maxAudioChannels, - [FromQuery] string? profile, - [FromQuery] string? level, - [FromQuery] float? framerate, - [FromQuery] float? maxFramerate, - [FromQuery] bool? copyTimestamps, - [FromQuery] long? startTimeTicks, - [FromQuery] int? width, - [FromQuery] int? height, - [FromQuery] int? videoBitRate, - [FromQuery] int? subtitleStreamIndex, - [FromQuery] SubtitleDeliveryMethod? subtitleMethod, - [FromQuery] int? maxRefFrames, - [FromQuery] int? maxVideoBitDepth, - [FromQuery] bool? requireAvc, - [FromQuery] bool? deInterlace, - [FromQuery] bool? requireNonAnamorphic, - [FromQuery] int? transcodingMaxAudioChannels, - [FromQuery] int? cpuCoreLimit, - [FromQuery] string? liveStreamId, - [FromQuery] bool? enableMpegtsM2TsMode, - [FromQuery] string? videoCodec, - [FromQuery] string? subtitleCodec, - [FromQuery] string? transcodeReasons, - [FromQuery] int? audioStreamIndex, - [FromQuery] int? videoStreamIndex, - [FromQuery] EncodingContext? context, - [FromQuery] Dictionary<string, string> streamOptions, - [FromQuery] int? maxWidth, - [FromQuery] int? maxHeight, - [FromQuery] bool? enableSubtitlesInManifest) - { - VideoRequestDto streamingRequest = new VideoRequestDto - { - Id = itemId, - Container = container, - Static = @static ?? false, - Params = @params, - Tag = tag, - DeviceProfileId = deviceProfileId, - PlaySessionId = playSessionId, - SegmentContainer = segmentContainer, - SegmentLength = segmentLength, - MinSegments = minSegments, - MediaSourceId = mediaSourceId, - DeviceId = deviceId, - AudioCodec = audioCodec, - EnableAutoStreamCopy = enableAutoStreamCopy ?? true, - AllowAudioStreamCopy = allowAudioStreamCopy ?? true, - AllowVideoStreamCopy = allowVideoStreamCopy ?? true, - BreakOnNonKeyFrames = breakOnNonKeyFrames ?? false, - AudioSampleRate = audioSampleRate, - MaxAudioChannels = maxAudioChannels, - AudioBitRate = audioBitRate, - MaxAudioBitDepth = maxAudioBitDepth, - AudioChannels = audioChannels, - Profile = profile, - Level = level, - Framerate = framerate, - MaxFramerate = maxFramerate, - CopyTimestamps = copyTimestamps ?? 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 - }; - - // 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; - using var state = await StreamingHelpers.GetStreamingState( - streamingRequest, - Request, - _authContext, - _mediaSourceManager, - _userManager, - _libraryManager, - _serverConfigurationManager, - _mediaEncoder, - _encodingHelper, - _dlnaManager, - _deviceManager, - _transcodingJobHelper, - TranscodingJobType, - cancellationToken) - .ConfigureAwait(false); - - TranscodingJobDto? job = null; - var playlistPath = Path.ChangeExtension(state.OutputFilePath, ".m3u8"); - - if (!System.IO.File.Exists(playlistPath)) - { - var transcodingLock = _transcodingJobHelper.GetTranscodingLock(playlistPath); - await transcodingLock.WaitAsync(cancellationToken).ConfigureAwait(false); - try - { - if (!System.IO.File.Exists(playlistPath)) - { - // If the playlist doesn't already exist, startup ffmpeg - try - { - job = await _transcodingJobHelper.StartFfMpeg( - state, - playlistPath, - GetCommandLineArguments(playlistPath, state), - Request, - 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); - } - } - } - finally - { - transcodingLock.Release(); - } - } - - job ??= _transcodingJobHelper.OnTranscodeBeginRequest(playlistPath, TranscodingJobType); - - if (job != null) - { - _transcodingJobHelper.OnTranscodeEndRequest(job); - } - - var playlistText = HlsHelpers.GetLivePlaylistText(playlistPath, state); - - return Content(playlistText, MimeTypes.GetMimeType("playlist.m3u8")); - } - - /// <summary> - /// Gets the command line arguments for ffmpeg. - /// </summary> - /// <param name="outputPath">The output path of the file.</param> - /// <param name="state">The <see cref="StreamState"/>.</param> - /// <returns>The command line arguments as a string.</returns> - private string GetCommandLineArguments(string outputPath, StreamState state) - { - var videoCodec = _encodingHelper.GetVideoEncoder(state, _encodingOptions); - var threads = EncodingHelper.GetNumberOfThreads(state, _encodingOptions, videoCodec); // GetNumberOfThreads is static. - var inputModifier = _encodingHelper.GetInputModifier(state, _encodingOptions); - 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 = outputExtension.TrimStart('.'); - if (string.Equals(segmentFormat, "ts", StringComparison.OrdinalIgnoreCase)) - { - segmentFormat = "mpegts"; - } - else if (string.Equals(segmentFormat, "mp4", StringComparison.OrdinalIgnoreCase)) - { - string outputFmp4HeaderArg; - if (OperatingSystem.IsWindows()) - { - // on Windows, the path of fmp4 header file needs to be configured - outputFmp4HeaderArg = " -hls_fmp4_init_filename \"" + outputPrefix + "-1" + outputExtension + "\""; - } - else - { - // on Linux/Unix, ffmpeg generate fmp4 header file to m3u8 output folder - outputFmp4HeaderArg = " -hls_fmp4_init_filename \"" + outputFileNameWithoutExtension + "-1" + outputExtension + "\""; - } - - segmentFormat = "fmp4" + outputFmp4HeaderArg; - } - else - { - _logger.LogError("Invalid HLS segment container: {SegmentFormat}", segmentFormat); - } - - var maxMuxingQueueSize = _encodingOptions.MaxMuxingQueueSize > 128 - ? _encodingOptions.MaxMuxingQueueSize.ToString(CultureInfo.InvariantCulture) - : "128"; - - var baseUrlParam = string.Format( - CultureInfo.InvariantCulture, - "\"hls/{0}/\"", - Path.GetFileNameWithoutExtension(outputPath)); - - return string.Format( - CultureInfo.InvariantCulture, - "{0} {1} -map_metadata -1 -map_chapters -1 -threads {2} {3} {4} {5} -copyts -avoid_negative_ts disabled -max_muxing_queue_size {6} -f hls -max_delay 5000000 -hls_time {7} -hls_segment_type {8} -start_number 0 -hls_base_url {9} -hls_playlist_type event -hls_segment_filename \"{10}\" -y \"{11}\"", - inputModifier, - _encodingHelper.GetInputArgument(state, _encodingOptions), - threads, - mapArgs, - GetVideoArguments(state), - GetAudioArguments(state), - maxMuxingQueueSize, - state.SegmentLength.ToString(CultureInfo.InvariantCulture), - segmentFormat, - baseUrlParam, - outputTsArg, - 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 == null) - { - return string.Empty; - } - - var audioCodec = _encodingHelper.GetAudioEncoder(state); - - if (!state.IsOutputVideo) - { - if (EncodingHelper.IsCopyCodec(audioCodec)) - { - var bitStreamArgs = EncodingHelper.GetAudioBitStreamArguments(state, state.Request.SegmentContainer, state.MediaSource.Container); - - return "-acodec copy -strict -2" + bitStreamArgs; - } - - var audioTranscodeParams = string.Empty; - - audioTranscodeParams += "-acodec " + audioCodec; - - if (state.OutputAudioBitrate.HasValue) - { - audioTranscodeParams += " -ab " + state.OutputAudioBitrate.Value.ToString(CultureInfo.InvariantCulture); - } - - if (state.OutputAudioChannels.HasValue) - { - audioTranscodeParams += " -ac " + state.OutputAudioChannels.Value.ToString(CultureInfo.InvariantCulture); - } - - if (state.OutputAudioSampleRate.HasValue) - { - audioTranscodeParams += " -ar " + state.OutputAudioSampleRate.Value.ToString(CultureInfo.InvariantCulture); - } - - audioTranscodeParams += " -vn"; - return audioTranscodeParams; - } - - if (EncodingHelper.IsCopyCodec(audioCodec)) - { - var bitStreamArgs = EncodingHelper.GetAudioBitStreamArguments(state, state.Request.SegmentContainer, state.MediaSource.Container); - - return "-acodec copy -strict -2" + bitStreamArgs; - } - - var args = "-codec:a:0 " + audioCodec; - - var channels = state.OutputAudioChannels; - - if (channels.HasValue) - { - args += " -ac " + channels.Value; - } - - var bitrate = state.OutputAudioBitrate; - - if (bitrate.HasValue) - { - args += " -ab " + bitrate.Value.ToString(CultureInfo.InvariantCulture); - } - - if (state.OutputAudioSampleRate.HasValue) - { - args += " -ar " + state.OutputAudioSampleRate.Value.ToString(CultureInfo.InvariantCulture); - } - - args += _encodingHelper.GetAudioFilterParam(state, _encodingOptions); - - return args; - } - - /// <summary> - /// Gets the video arguments for transcoding. - /// </summary> - /// <param name="state">The <see cref="StreamState"/>.</param> - /// <returns>The command line arguments for video transcoding.</returns> - private string GetVideoArguments(StreamState state) - { - if (state.VideoStream == null) - { - return string.Empty; - } - - if (!state.IsOutputVideo) - { - return string.Empty; - } - - var codec = _encodingHelper.GetVideoEncoder(state, _encodingOptions); - - var args = "-codec:v:0 " + codec; - - // Prefer hvc1 to hev1. - 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)) - { - 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 != 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, DefaultEncoderPreset); - - // Set the key frame params for video encoding to match the hls segment time. - args += _encodingHelper.GetHlsVideoKeyFrameArguments(state, codec, state.SegmentLength, true, null); - - // Currenly b-frames in libx265 breaks the FMP4-HLS playback on iOS, disable it for now. - if (string.Equals(codec, "libx265", StringComparison.OrdinalIgnoreCase)) - { - args += " -bf 0"; - } - - var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream && state.SubtitleDeliveryMethod == SubtitleDeliveryMethod.Encode; - - if (hasGraphicalSubs) - { - // Graphical subs overlay and resolution params. - args += _encodingHelper.GetGraphicalSubtitleParam(state, _encodingOptions, codec); - } - else - { - // Resolution params. - args += _encodingHelper.GetOutputSizeParam(state, _encodingOptions, codec); - } - - if (state.SubtitleStream == null || !state.SubtitleStream.IsExternal || state.SubtitleStream.IsTextSubtitleStream) - { - args += " -start_at_zero"; - } - } - - args += " -flags -global_header"; - - if (!string.IsNullOrEmpty(state.OutputVideoSync)) - { - args += " -vsync " + state.OutputVideoSync; - } - - args += _encodingHelper.GetOutputFFlags(state); - - return args; - } - } -} |