4046ef1c13
Only changeing streamingRequest is not enough. The internal logic will do codec shifting based on supported codecs, need to overwrite all of them. Signed-off-by: gnattu <gnattuoc@me.com>
603 lines
23 KiB
C#
603 lines
23 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using Jellyfin.Api.Extensions;
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using Jellyfin.Data.Enums;
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using Jellyfin.Extensions;
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using MediaBrowser.Common.Configuration;
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using MediaBrowser.Common.Extensions;
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using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.MediaEncoding;
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using MediaBrowser.Controller.Streaming;
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using MediaBrowser.Model.Dlna;
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using MediaBrowser.Model.Dto;
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using MediaBrowser.Model.Entities;
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using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Http.HttpResults;
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using Microsoft.Net.Http.Headers;
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namespace Jellyfin.Api.Helpers;
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/// <summary>
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/// The streaming helpers.
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/// </summary>
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public static class StreamingHelpers
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{
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/// <summary>
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/// Gets the current streaming state.
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/// </summary>
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/// <param name="streamingRequest">The <see cref="StreamingRequestDto"/>.</param>
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/// <param name="httpContext">The <see cref="HttpContext"/>.</param>
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/// <param name="mediaSourceManager">Instance of the <see cref="IMediaSourceManager"/> interface.</param>
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/// <param name="userManager">Instance of the <see cref="IUserManager"/> interface.</param>
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/// <param name="libraryManager">Instance of the <see cref="ILibraryManager"/> interface.</param>
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/// <param name="serverConfigurationManager">Instance of the <see cref="IServerConfigurationManager"/> interface.</param>
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/// <param name="mediaEncoder">Instance of the <see cref="IMediaEncoder"/> interface.</param>
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/// <param name="encodingHelper">Instance of <see cref="EncodingHelper"/>.</param>
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/// <param name="transcodeManager">Instance of the <see cref="ITranscodeManager"/> interface.</param>
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/// <param name="transcodingJobType">The <see cref="TranscodingJobType"/>.</param>
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/// <param name="cancellationToken">The <see cref="CancellationToken"/>.</param>
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/// <returns>A <see cref="Task"/> containing the current <see cref="StreamState"/>.</returns>
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public static async Task<StreamState> GetStreamingState(
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StreamingRequestDto streamingRequest,
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HttpContext httpContext,
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IMediaSourceManager mediaSourceManager,
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IUserManager userManager,
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ILibraryManager libraryManager,
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IServerConfigurationManager serverConfigurationManager,
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IMediaEncoder mediaEncoder,
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EncodingHelper encodingHelper,
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ITranscodeManager transcodeManager,
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TranscodingJobType transcodingJobType,
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CancellationToken cancellationToken)
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{
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var httpRequest = httpContext.Request;
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if (!string.IsNullOrWhiteSpace(streamingRequest.Params))
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{
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ParseParams(streamingRequest);
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}
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streamingRequest.StreamOptions = ParseStreamOptions(httpRequest.Query);
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if (httpRequest.Path.Value is null)
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{
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throw new ResourceNotFoundException(nameof(httpRequest.Path));
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}
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var url = httpRequest.Path.Value.AsSpan().RightPart('.').ToString();
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if (string.IsNullOrEmpty(streamingRequest.AudioCodec))
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{
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streamingRequest.AudioCodec = encodingHelper.InferAudioCodec(url);
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}
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var state = new StreamState(mediaSourceManager, transcodingJobType, transcodeManager)
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{
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Request = streamingRequest,
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RequestedUrl = url,
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UserAgent = httpRequest.Headers[HeaderNames.UserAgent]
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};
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var userId = httpContext.User.GetUserId();
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if (!userId.IsEmpty())
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{
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state.User = userManager.GetUserById(userId);
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}
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if (state.IsVideoRequest && !string.IsNullOrWhiteSpace(state.Request.VideoCodec))
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{
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state.SupportedVideoCodecs = state.Request.VideoCodec.Split(',', StringSplitOptions.RemoveEmptyEntries);
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state.Request.VideoCodec = state.SupportedVideoCodecs.FirstOrDefault();
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}
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if (!string.IsNullOrWhiteSpace(streamingRequest.AudioCodec))
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{
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state.SupportedAudioCodecs = streamingRequest.AudioCodec.Split(',', StringSplitOptions.RemoveEmptyEntries);
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state.Request.AudioCodec = state.SupportedAudioCodecs.FirstOrDefault(mediaEncoder.CanEncodeToAudioCodec)
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?? state.SupportedAudioCodecs.FirstOrDefault();
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}
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if (!string.IsNullOrWhiteSpace(streamingRequest.SubtitleCodec))
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{
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state.SupportedSubtitleCodecs = streamingRequest.SubtitleCodec.Split(',', StringSplitOptions.RemoveEmptyEntries);
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state.Request.SubtitleCodec = state.SupportedSubtitleCodecs.FirstOrDefault(mediaEncoder.CanEncodeToSubtitleCodec)
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?? state.SupportedSubtitleCodecs.FirstOrDefault();
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}
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var item = libraryManager.GetItemById<BaseItem>(streamingRequest.Id)
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?? throw new ResourceNotFoundException();
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state.IsInputVideo = item.MediaType == MediaType.Video;
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MediaSourceInfo? mediaSource = null;
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if (string.IsNullOrWhiteSpace(streamingRequest.LiveStreamId))
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{
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var currentJob = !string.IsNullOrWhiteSpace(streamingRequest.PlaySessionId)
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? transcodeManager.GetTranscodingJob(streamingRequest.PlaySessionId)
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: null;
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if (currentJob is not null)
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{
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mediaSource = currentJob.MediaSource;
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}
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if (mediaSource is null)
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{
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var mediaSources = await mediaSourceManager.GetPlaybackMediaSources(libraryManager.GetItemById<BaseItem>(streamingRequest.Id), null, false, false, cancellationToken).ConfigureAwait(false);
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mediaSource = string.IsNullOrEmpty(streamingRequest.MediaSourceId)
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? mediaSources[0]
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: mediaSources.Find(i => string.Equals(i.Id, streamingRequest.MediaSourceId, StringComparison.Ordinal));
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if (mediaSource is null && Guid.Parse(streamingRequest.MediaSourceId).Equals(streamingRequest.Id))
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{
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mediaSource = mediaSources[0];
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}
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}
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}
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else
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{
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// Enforce more restrictive transcoding profile for LiveTV due to compatability reasons
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// Cap the MaxStreamingBitrate to 30Mbps, because we are unable to reliably probe source bitrate,
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// which will cause the client to request extremely high bitrate that may fail the player/encoder
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streamingRequest.VideoBitRate = streamingRequest.VideoBitRate > 30000000 ? 30000000 : streamingRequest.VideoBitRate;
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if (streamingRequest.SegmentContainer is not null)
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{
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// Remove all fmp4 transcoding profiles, because it causes playback error and/or A/V sync issues
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// Notably: Some channels won't play on FireFox and LG webOS
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// Some channels from HDHomerun will experience A/V sync issues
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streamingRequest.SegmentContainer = "ts";
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streamingRequest.VideoCodec = "h264";
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streamingRequest.AudioCodec = "aac";
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state.SupportedVideoCodecs = ["h264"];
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state.Request.VideoCodec = "h264";
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state.SupportedAudioCodecs = ["aac"];
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state.Request.AudioCodec = "aac";
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}
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var liveStreamInfo = await mediaSourceManager.GetLiveStreamWithDirectStreamProvider(streamingRequest.LiveStreamId, cancellationToken).ConfigureAwait(false);
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mediaSource = liveStreamInfo.Item1;
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state.DirectStreamProvider = liveStreamInfo.Item2;
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}
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var encodingOptions = serverConfigurationManager.GetEncodingOptions();
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encodingHelper.AttachMediaSourceInfo(state, encodingOptions, mediaSource, url);
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string? containerInternal = Path.GetExtension(state.RequestedUrl);
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if (!string.IsNullOrEmpty(streamingRequest.Container))
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{
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containerInternal = streamingRequest.Container;
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}
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if (string.IsNullOrEmpty(containerInternal))
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{
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containerInternal = streamingRequest.Static ?
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StreamBuilder.NormalizeMediaSourceFormatIntoSingleContainer(state.InputContainer, null, DlnaProfileType.Audio)
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: GetOutputFileExtension(state, mediaSource);
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}
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var outputAudioCodec = streamingRequest.AudioCodec;
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state.OutputAudioCodec = outputAudioCodec;
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state.OutputContainer = (containerInternal ?? string.Empty).TrimStart('.');
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state.OutputAudioChannels = encodingHelper.GetNumAudioChannelsParam(state, state.AudioStream, state.OutputAudioCodec);
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if (EncodingHelper.LosslessAudioCodecs.Contains(outputAudioCodec))
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{
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state.OutputAudioBitrate = state.AudioStream.BitRate ?? 0;
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}
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else
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{
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state.OutputAudioBitrate = encodingHelper.GetAudioBitrateParam(streamingRequest.AudioBitRate, streamingRequest.AudioCodec, state.AudioStream, state.OutputAudioChannels) ?? 0;
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}
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if (outputAudioCodec.StartsWith("pcm_", StringComparison.Ordinal))
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{
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containerInternal = ".pcm";
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}
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if (state.VideoRequest is not null)
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{
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state.OutputVideoCodec = state.Request.VideoCodec;
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state.OutputVideoBitrate = encodingHelper.GetVideoBitrateParamValue(state.VideoRequest, state.VideoStream, state.OutputVideoCodec);
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encodingHelper.TryStreamCopy(state);
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if (!EncodingHelper.IsCopyCodec(state.OutputVideoCodec) && state.OutputVideoBitrate.HasValue)
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{
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var isVideoResolutionNotRequested = !state.VideoRequest.Width.HasValue
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&& !state.VideoRequest.Height.HasValue
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&& !state.VideoRequest.MaxWidth.HasValue
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&& !state.VideoRequest.MaxHeight.HasValue;
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if (isVideoResolutionNotRequested
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&& state.VideoStream is not null
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&& state.VideoRequest.VideoBitRate.HasValue
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&& state.VideoStream.BitRate.HasValue
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&& state.VideoRequest.VideoBitRate.Value >= state.VideoStream.BitRate.Value)
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{
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// Don't downscale the resolution if the width/height/MaxWidth/MaxHeight is not requested,
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// and the requested video bitrate is higher than source video bitrate.
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if (state.VideoStream.Width.HasValue || state.VideoStream.Height.HasValue)
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{
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state.VideoRequest.MaxWidth = state.VideoStream?.Width;
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state.VideoRequest.MaxHeight = state.VideoStream?.Height;
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}
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}
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else
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{
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var resolution = ResolutionNormalizer.Normalize(
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state.VideoStream?.BitRate,
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state.OutputVideoBitrate.Value,
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state.VideoRequest.MaxWidth,
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state.VideoRequest.MaxHeight);
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state.VideoRequest.MaxWidth = resolution.MaxWidth;
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state.VideoRequest.MaxHeight = resolution.MaxHeight;
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}
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}
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}
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var ext = string.IsNullOrWhiteSpace(state.OutputContainer)
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? GetOutputFileExtension(state, mediaSource)
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: ("." + GetContainerFileExtension(state.OutputContainer));
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state.OutputFilePath = GetOutputFilePath(state, ext, serverConfigurationManager, streamingRequest.DeviceId, streamingRequest.PlaySessionId);
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return state;
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}
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/// <summary>
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/// Parses query parameters as StreamOptions.
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/// </summary>
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/// <param name="queryString">The query string.</param>
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/// <returns>A <see cref="Dictionary{String,String}"/> containing the stream options.</returns>
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private static Dictionary<string, string?> ParseStreamOptions(IQueryCollection queryString)
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{
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Dictionary<string, string?> streamOptions = new Dictionary<string, string?>();
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foreach (var param in queryString)
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{
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if (char.IsLower(param.Key[0]))
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{
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// This was probably not parsed initially and should be a StreamOptions
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// or the generated URL should correctly serialize it
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// TODO: This should be incorporated either in the lower framework for parsing requests
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streamOptions[param.Key] = param.Value;
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}
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}
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return streamOptions;
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}
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/// <summary>
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/// Gets the output file extension.
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/// </summary>
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/// <param name="state">The state.</param>
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/// <param name="mediaSource">The mediaSource.</param>
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/// <returns>System.String.</returns>
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private static string GetOutputFileExtension(StreamState state, MediaSourceInfo? mediaSource)
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{
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var ext = Path.GetExtension(state.RequestedUrl);
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if (!string.IsNullOrEmpty(ext))
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{
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return ext;
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}
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// Try to infer based on the desired video codec
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if (state.IsVideoRequest)
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{
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var videoCodec = state.Request.VideoCodec;
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if (string.Equals(videoCodec, "h264", StringComparison.OrdinalIgnoreCase))
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{
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return ".ts";
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}
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if (string.Equals(videoCodec, "hevc", StringComparison.OrdinalIgnoreCase)
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|| string.Equals(videoCodec, "av1", StringComparison.OrdinalIgnoreCase))
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{
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return ".mp4";
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}
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if (string.Equals(videoCodec, "theora", StringComparison.OrdinalIgnoreCase))
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{
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return ".ogv";
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}
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if (string.Equals(videoCodec, "vp8", StringComparison.OrdinalIgnoreCase)
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|| string.Equals(videoCodec, "vp9", StringComparison.OrdinalIgnoreCase)
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|| string.Equals(videoCodec, "vpx", StringComparison.OrdinalIgnoreCase))
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{
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return ".webm";
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}
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if (string.Equals(videoCodec, "wmv", StringComparison.OrdinalIgnoreCase))
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{
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return ".asf";
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}
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}
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else
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{
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// Try to infer based on the desired audio codec
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var audioCodec = state.Request.AudioCodec;
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if (string.Equals("aac", audioCodec, StringComparison.OrdinalIgnoreCase))
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{
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return ".aac";
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}
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if (string.Equals("mp3", audioCodec, StringComparison.OrdinalIgnoreCase))
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{
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return ".mp3";
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}
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if (string.Equals("vorbis", audioCodec, StringComparison.OrdinalIgnoreCase))
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{
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return ".ogg";
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}
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if (string.Equals("wma", audioCodec, StringComparison.OrdinalIgnoreCase))
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{
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return ".wma";
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}
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}
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// Fallback to the container of mediaSource
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if (!string.IsNullOrEmpty(mediaSource?.Container))
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{
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var idx = mediaSource.Container.IndexOf(',', StringComparison.OrdinalIgnoreCase);
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return '.' + (idx == -1 ? mediaSource.Container : mediaSource.Container[..idx]).Trim();
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}
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throw new InvalidOperationException("Failed to find an appropriate file extension");
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}
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/// <summary>
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/// Gets the output file path for transcoding.
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/// </summary>
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/// <param name="state">The current <see cref="StreamState"/>.</param>
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/// <param name="outputFileExtension">The file extension of the output file.</param>
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/// <param name="serverConfigurationManager">Instance of the <see cref="IServerConfigurationManager"/> interface.</param>
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/// <param name="deviceId">The device id.</param>
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/// <param name="playSessionId">The play session id.</param>
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/// <returns>The complete file path, including the folder, for the transcoding file.</returns>
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private static string GetOutputFilePath(StreamState state, string outputFileExtension, IServerConfigurationManager serverConfigurationManager, string? deviceId, string? playSessionId)
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{
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var data = $"{state.MediaPath}-{state.UserAgent}-{deviceId!}-{playSessionId!}";
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var filename = data.GetMD5().ToString("N", CultureInfo.InvariantCulture);
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var ext = outputFileExtension.ToLowerInvariant();
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var folder = serverConfigurationManager.GetTranscodePath();
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return Path.Combine(folder, filename + ext);
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}
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/// <summary>
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/// Parses the parameters.
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/// </summary>
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/// <param name="request">The request.</param>
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private static void ParseParams(StreamingRequestDto request)
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{
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if (string.IsNullOrEmpty(request.Params))
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{
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return;
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}
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var vals = request.Params.Split(';');
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var videoRequest = request as VideoRequestDto;
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for (var i = 0; i < vals.Length; i++)
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{
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var val = vals[i];
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if (string.IsNullOrWhiteSpace(val))
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{
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continue;
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}
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switch (i)
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{
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case 0:
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// DeviceProfileId
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break;
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case 1:
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request.DeviceId = val;
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break;
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case 2:
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request.MediaSourceId = val;
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break;
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case 3:
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request.Static = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
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break;
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case 4:
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if (videoRequest is not null)
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{
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videoRequest.VideoCodec = val;
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}
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break;
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case 5:
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request.AudioCodec = val;
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break;
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case 6:
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if (videoRequest is not null)
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{
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videoRequest.AudioStreamIndex = int.Parse(val, CultureInfo.InvariantCulture);
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}
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break;
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case 7:
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if (videoRequest is not null)
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{
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videoRequest.SubtitleStreamIndex = int.Parse(val, CultureInfo.InvariantCulture);
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}
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break;
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case 8:
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if (videoRequest is not null)
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{
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videoRequest.VideoBitRate = int.Parse(val, CultureInfo.InvariantCulture);
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}
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break;
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case 9:
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request.AudioBitRate = int.Parse(val, CultureInfo.InvariantCulture);
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break;
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case 10:
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request.MaxAudioChannels = int.Parse(val, CultureInfo.InvariantCulture);
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break;
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case 11:
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if (videoRequest is not null)
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{
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videoRequest.MaxFramerate = float.Parse(val, CultureInfo.InvariantCulture);
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}
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break;
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case 12:
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if (videoRequest is not null)
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{
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videoRequest.MaxWidth = int.Parse(val, CultureInfo.InvariantCulture);
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}
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break;
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case 13:
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if (videoRequest is not null)
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{
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videoRequest.MaxHeight = int.Parse(val, CultureInfo.InvariantCulture);
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}
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break;
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case 14:
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request.StartTimeTicks = long.Parse(val, CultureInfo.InvariantCulture);
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break;
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case 15:
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if (videoRequest is not null)
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{
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videoRequest.Level = val;
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}
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break;
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case 16:
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if (videoRequest is not null)
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{
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videoRequest.MaxRefFrames = int.Parse(val, CultureInfo.InvariantCulture);
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}
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break;
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case 17:
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if (videoRequest is not null)
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{
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videoRequest.MaxVideoBitDepth = int.Parse(val, CultureInfo.InvariantCulture);
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}
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break;
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case 18:
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if (videoRequest is not null)
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{
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videoRequest.Profile = val;
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}
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break;
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case 19:
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// cabac no longer used
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break;
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case 20:
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request.PlaySessionId = val;
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break;
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case 21:
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// api_key
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break;
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case 22:
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request.LiveStreamId = val;
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break;
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case 23:
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// Duplicating ItemId because of MediaMonkey
|
|
break;
|
|
case 24:
|
|
if (videoRequest is not null)
|
|
{
|
|
videoRequest.CopyTimestamps = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
|
|
}
|
|
|
|
break;
|
|
case 25:
|
|
if (!string.IsNullOrWhiteSpace(val) && videoRequest is not null)
|
|
{
|
|
if (Enum.TryParse(val, out SubtitleDeliveryMethod method))
|
|
{
|
|
videoRequest.SubtitleMethod = method;
|
|
}
|
|
}
|
|
|
|
break;
|
|
case 26:
|
|
request.TranscodingMaxAudioChannels = int.Parse(val, CultureInfo.InvariantCulture);
|
|
break;
|
|
case 27:
|
|
if (videoRequest is not null)
|
|
{
|
|
videoRequest.EnableSubtitlesInManifest = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
|
|
}
|
|
|
|
break;
|
|
case 28:
|
|
request.Tag = val;
|
|
break;
|
|
case 29:
|
|
if (videoRequest is not null)
|
|
{
|
|
videoRequest.RequireAvc = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
|
|
}
|
|
|
|
break;
|
|
case 30:
|
|
request.SubtitleCodec = val;
|
|
break;
|
|
case 31:
|
|
if (videoRequest is not null)
|
|
{
|
|
videoRequest.RequireNonAnamorphic = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
|
|
}
|
|
|
|
break;
|
|
case 32:
|
|
if (videoRequest is not null)
|
|
{
|
|
videoRequest.DeInterlace = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
|
|
}
|
|
|
|
break;
|
|
case 33:
|
|
request.TranscodeReasons = val;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Parses the container into its file extension.
|
|
/// </summary>
|
|
/// <param name="container">The container.</param>
|
|
private static string? GetContainerFileExtension(string? container)
|
|
{
|
|
if (string.Equals(container, "mpegts", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "ts";
|
|
}
|
|
|
|
if (string.Equals(container, "matroska", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return "mkv";
|
|
}
|
|
|
|
return container;
|
|
}
|
|
}
|