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- #nullable disable
- #pragma warning disable CS1591
- using System;
- using System.Collections.Generic;
- using System.Globalization;
- using System.Linq;
- using MediaBrowser.Model.Dto;
- using MediaBrowser.Model.Entities;
- using MediaBrowser.Model.MediaInfo;
- using MediaBrowser.Model.Session;
- using Microsoft.Extensions.Logging;
- namespace MediaBrowser.Model.Dlna
- {
- public class StreamBuilder
- {
- // Aliases
- internal const TranscodeReason ContainerReasons = TranscodeReason.ContainerNotSupported | TranscodeReason.ContainerBitrateExceedsLimit;
- internal const TranscodeReason AudioReasons = TranscodeReason.AudioCodecNotSupported | TranscodeReason.AudioBitrateNotSupported | TranscodeReason.AudioChannelsNotSupported | TranscodeReason.AudioProfileNotSupported | TranscodeReason.AudioSampleRateNotSupported | TranscodeReason.SecondaryAudioNotSupported | TranscodeReason.AudioBitDepthNotSupported | TranscodeReason.AudioIsExternal;
- internal const TranscodeReason VideoReasons = TranscodeReason.VideoCodecNotSupported | TranscodeReason.VideoResolutionNotSupported | TranscodeReason.AnamorphicVideoNotSupported | TranscodeReason.InterlacedVideoNotSupported | TranscodeReason.VideoBitDepthNotSupported | TranscodeReason.VideoBitrateNotSupported | TranscodeReason.VideoFramerateNotSupported | TranscodeReason.VideoLevelNotSupported | TranscodeReason.RefFramesNotSupported;
- internal const TranscodeReason DirectStreamReasons = AudioReasons | TranscodeReason.ContainerNotSupported;
- private readonly ILogger _logger;
- private readonly ITranscoderSupport _transcoderSupport;
- public StreamBuilder(ITranscoderSupport transcoderSupport, ILogger logger)
- {
- _transcoderSupport = transcoderSupport;
- _logger = logger;
- }
- public StreamBuilder(ILogger<StreamBuilder> logger)
- : this(new FullTranscoderSupport(), logger)
- {
- }
- public StreamInfo BuildAudioItem(AudioOptions options)
- {
- ValidateAudioInput(options);
- var mediaSources = new List<MediaSourceInfo>();
- foreach (MediaSourceInfo i in options.MediaSources)
- {
- if (string.IsNullOrEmpty(options.MediaSourceId) ||
- string.Equals(i.Id, options.MediaSourceId, StringComparison.OrdinalIgnoreCase))
- {
- mediaSources.Add(i);
- }
- }
- var streams = new List<StreamInfo>();
- foreach (MediaSourceInfo i in mediaSources)
- {
- StreamInfo streamInfo = BuildAudioItem(i, options);
- if (streamInfo != null)
- {
- streams.Add(streamInfo);
- }
- }
- foreach (StreamInfo stream in streams)
- {
- stream.DeviceId = options.DeviceId;
- stream.DeviceProfileId = options.Profile.Id;
- }
- return GetOptimalStream(streams, options.GetMaxBitrate(true) ?? 0);
- }
- public StreamInfo BuildVideoItem(VideoOptions options)
- {
- ValidateInput(options);
- var mediaSources = new List<MediaSourceInfo>();
- foreach (MediaSourceInfo i in options.MediaSources)
- {
- if (string.IsNullOrEmpty(options.MediaSourceId) ||
- string.Equals(i.Id, options.MediaSourceId, StringComparison.OrdinalIgnoreCase))
- {
- mediaSources.Add(i);
- }
- }
- var streams = new List<StreamInfo>();
- foreach (MediaSourceInfo i in mediaSources)
- {
- var streamInfo = BuildVideoItem(i, options);
- if (streamInfo != null)
- {
- streams.Add(streamInfo);
- }
- }
- foreach (StreamInfo stream in streams)
- {
- stream.DeviceId = options.DeviceId;
- stream.DeviceProfileId = options.Profile.Id;
- }
- return GetOptimalStream(streams, options.GetMaxBitrate(false) ?? 0);
- }
- private static StreamInfo GetOptimalStream(List<StreamInfo> streams, long maxBitrate)
- => SortMediaSources(streams, maxBitrate).FirstOrDefault();
- private static IOrderedEnumerable<StreamInfo> SortMediaSources(List<StreamInfo> streams, long maxBitrate)
- {
- return streams.OrderBy(i =>
- {
- // Nothing beats direct playing a file
- if (i.PlayMethod == PlayMethod.DirectPlay && i.MediaSource.Protocol == MediaProtocol.File)
- {
- return 0;
- }
- return 1;
- }).ThenBy(i =>
- {
- switch (i.PlayMethod)
- {
- // Let's assume direct streaming a file is just as desirable as direct playing a remote url
- case PlayMethod.DirectStream:
- case PlayMethod.DirectPlay:
- return 0;
- default:
- return 1;
- }
- }).ThenBy(i =>
- {
- switch (i.MediaSource.Protocol)
- {
- case MediaProtocol.File:
- return 0;
- default:
- return 1;
- }
- }).ThenBy(i =>
- {
- if (maxBitrate > 0)
- {
- if (i.MediaSource.Bitrate.HasValue)
- {
- return Math.Abs(i.MediaSource.Bitrate.Value - maxBitrate);
- }
- }
- return 0;
- }).ThenBy(streams.IndexOf);
- }
- private static TranscodeReason GetTranscodeReasonForFailedCondition(ProfileCondition condition)
- {
- switch (condition.Property)
- {
- case ProfileConditionValue.AudioBitrate:
- return TranscodeReason.AudioBitrateNotSupported;
- case ProfileConditionValue.AudioChannels:
- return TranscodeReason.AudioChannelsNotSupported;
- case ProfileConditionValue.AudioProfile:
- return TranscodeReason.AudioProfileNotSupported;
- case ProfileConditionValue.AudioSampleRate:
- return TranscodeReason.AudioSampleRateNotSupported;
- case ProfileConditionValue.Has64BitOffsets:
- // TODO
- return 0;
- case ProfileConditionValue.Height:
- return TranscodeReason.VideoResolutionNotSupported;
- case ProfileConditionValue.IsAnamorphic:
- return TranscodeReason.AnamorphicVideoNotSupported;
- case ProfileConditionValue.IsAvc:
- // TODO
- return 0;
- case ProfileConditionValue.IsInterlaced:
- return TranscodeReason.InterlacedVideoNotSupported;
- case ProfileConditionValue.IsSecondaryAudio:
- return TranscodeReason.SecondaryAudioNotSupported;
- case ProfileConditionValue.NumAudioStreams:
- // TODO
- return 0;
- case ProfileConditionValue.NumVideoStreams:
- // TODO
- return 0;
- case ProfileConditionValue.PacketLength:
- // TODO
- return 0;
- case ProfileConditionValue.RefFrames:
- return TranscodeReason.RefFramesNotSupported;
- case ProfileConditionValue.VideoBitDepth:
- return TranscodeReason.VideoBitDepthNotSupported;
- case ProfileConditionValue.AudioBitDepth:
- return TranscodeReason.AudioBitDepthNotSupported;
- case ProfileConditionValue.VideoBitrate:
- return TranscodeReason.VideoBitrateNotSupported;
- case ProfileConditionValue.VideoCodecTag:
- return TranscodeReason.VideoCodecNotSupported;
- case ProfileConditionValue.VideoFramerate:
- return TranscodeReason.VideoFramerateNotSupported;
- case ProfileConditionValue.VideoLevel:
- return TranscodeReason.VideoLevelNotSupported;
- case ProfileConditionValue.VideoProfile:
- return TranscodeReason.VideoProfileNotSupported;
- case ProfileConditionValue.VideoTimestamp:
- // TODO
- return 0;
- case ProfileConditionValue.Width:
- return TranscodeReason.VideoResolutionNotSupported;
- default:
- return 0;
- }
- }
- public static string NormalizeMediaSourceFormatIntoSingleContainer(string inputContainer, DeviceProfile profile, DlnaProfileType type, DirectPlayProfile playProfile = null)
- {
- if (string.IsNullOrEmpty(inputContainer))
- {
- return null;
- }
- var formats = ContainerProfile.SplitValue(inputContainer);
- if (profile != null)
- {
- var playProfiles = playProfile == null ? profile.DirectPlayProfiles : new[] { playProfile };
- foreach (var format in formats)
- {
- foreach (var directPlayProfile in playProfiles)
- {
- if (directPlayProfile.Type == type
- && directPlayProfile.SupportsContainer(format))
- {
- return format;
- }
- }
- }
- }
- return formats[0];
- }
- private StreamInfo BuildAudioItem(MediaSourceInfo item, AudioOptions options)
- {
- StreamInfo playlistItem = new StreamInfo
- {
- ItemId = options.ItemId,
- MediaType = DlnaProfileType.Audio,
- MediaSource = item,
- RunTimeTicks = item.RunTimeTicks,
- Context = options.Context,
- DeviceProfile = options.Profile
- };
- if (options.ForceDirectPlay)
- {
- playlistItem.PlayMethod = PlayMethod.DirectPlay;
- playlistItem.Container = NormalizeMediaSourceFormatIntoSingleContainer(item.Container, options.Profile, DlnaProfileType.Audio);
- return playlistItem;
- }
- if (options.ForceDirectStream)
- {
- playlistItem.PlayMethod = PlayMethod.DirectStream;
- playlistItem.Container = NormalizeMediaSourceFormatIntoSingleContainer(item.Container, options.Profile, DlnaProfileType.Audio);
- return playlistItem;
- }
- var audioStream = item.GetDefaultAudioStream(null);
- var directPlayInfo = GetAudioDirectPlayProfile(item, audioStream, options);
- var directPlayMethod = directPlayInfo.PlayMethod;
- var transcodeReasons = directPlayInfo.TranscodeReasons;
- int? inputAudioChannels = audioStream?.Channels;
- int? inputAudioBitrate = audioStream?.BitDepth;
- int? inputAudioSampleRate = audioStream?.SampleRate;
- int? inputAudioBitDepth = audioStream?.BitDepth;
- if (directPlayMethod.HasValue)
- {
- var profile = options.Profile;
- var audioFailureConditions = GetProfileConditionsForAudio(profile.CodecProfiles, item.Container, audioStream?.Codec, inputAudioChannels, inputAudioBitrate, inputAudioSampleRate, inputAudioBitDepth, true);
- var audioFailureReasons = AggregateFailureConditions(item, profile, "AudioCodecProfile", audioFailureConditions);
- transcodeReasons |= audioFailureReasons;
- if (audioFailureReasons == 0)
- {
- playlistItem.PlayMethod = directPlayMethod.Value;
- playlistItem.Container = NormalizeMediaSourceFormatIntoSingleContainer(item.Container, options.Profile, DlnaProfileType.Audio, directPlayInfo.Profile);
- return playlistItem;
- }
- }
- TranscodingProfile transcodingProfile = null;
- foreach (var i in options.Profile.TranscodingProfiles)
- {
- if (i.Type == playlistItem.MediaType
- && i.Context == options.Context
- && _transcoderSupport.CanEncodeToAudioCodec(i.AudioCodec ?? i.Container))
- {
- transcodingProfile = i;
- break;
- }
- }
- if (transcodingProfile != null)
- {
- if (!item.SupportsTranscoding)
- {
- return null;
- }
- SetStreamInfoOptionsFromTranscodingProfile(item, playlistItem, transcodingProfile);
- var audioTranscodingConditions = GetProfileConditionsForAudio(options.Profile.CodecProfiles, transcodingProfile.Container, transcodingProfile.AudioCodec, inputAudioChannels, inputAudioBitrate, inputAudioSampleRate, inputAudioBitDepth, false).ToArray();
- ApplyTranscodingConditions(playlistItem, audioTranscodingConditions, null, true, true);
- // Honor requested max channels
- playlistItem.GlobalMaxAudioChannels = options.MaxAudioChannels;
- var configuredBitrate = options.GetMaxBitrate(true);
- long transcodingBitrate = options.AudioTranscodingBitrate ??
- (options.Context == EncodingContext.Streaming ? options.Profile.MusicStreamingTranscodingBitrate : null) ??
- configuredBitrate ??
- 128000;
- if (configuredBitrate.HasValue)
- {
- transcodingBitrate = Math.Min(configuredBitrate.Value, transcodingBitrate);
- }
- var longBitrate = Math.Min(transcodingBitrate, playlistItem.AudioBitrate ?? transcodingBitrate);
- playlistItem.AudioBitrate = longBitrate > int.MaxValue ? int.MaxValue : Convert.ToInt32(longBitrate);
- }
- playlistItem.TranscodeReasons = transcodeReasons;
- return playlistItem;
- }
- private static long? GetBitrateForDirectPlayCheck(MediaSourceInfo item, AudioOptions options, bool isAudio)
- {
- if (item.Protocol == MediaProtocol.File)
- {
- return options.Profile.MaxStaticBitrate;
- }
- return options.GetMaxBitrate(isAudio);
- }
- private (DirectPlayProfile Profile, PlayMethod? PlayMethod, TranscodeReason TranscodeReasons) GetAudioDirectPlayProfile(MediaSourceInfo item, MediaStream audioStream, AudioOptions options)
- {
- var directPlayProfile = options.Profile.DirectPlayProfiles
- .FirstOrDefault(x => x.Type == DlnaProfileType.Audio && IsAudioDirectPlaySupported(x, item, audioStream));
- if (directPlayProfile == null)
- {
- _logger.LogDebug(
- "Profile: {0}, No audio direct play profiles found for {1} with codec {2}",
- options.Profile.Name ?? "Unknown Profile",
- item.Path ?? "Unknown path",
- audioStream.Codec ?? "Unknown codec");
- return (null, null, GetTranscodeReasonsFromDirectPlayProfile(item, null, audioStream, options.Profile.DirectPlayProfiles));
- }
- var playMethods = new List<PlayMethod>();
- TranscodeReason transcodeReasons = 0;
- // The profile describes what the device supports
- // If device requirements are satisfied then allow both direct stream and direct play
- if (item.SupportsDirectPlay)
- {
- if (IsItemBitrateEligibleForDirectPlay(item, GetBitrateForDirectPlayCheck(item, options, true) ?? 0, PlayMethod.DirectPlay))
- {
- if (options.EnableDirectPlay)
- {
- return (directPlayProfile, PlayMethod.DirectPlay, 0);
- }
- }
- else
- {
- transcodeReasons |= TranscodeReason.ContainerBitrateExceedsLimit;
- }
- }
- // While options takes the network and other factors into account. Only applies to direct stream
- if (item.SupportsDirectStream)
- {
- if (IsItemBitrateEligibleForDirectPlay(item, options.GetMaxBitrate(true) ?? 0, PlayMethod.DirectStream))
- {
- if (options.EnableDirectStream)
- {
- return (directPlayProfile, PlayMethod.DirectStream, transcodeReasons);
- }
- }
- else
- {
- transcodeReasons |= TranscodeReason.ContainerBitrateExceedsLimit;
- }
- }
- return (directPlayProfile, null, transcodeReasons);
- }
- private static TranscodeReason GetTranscodeReasonsFromDirectPlayProfile(MediaSourceInfo item, MediaStream videoStream, MediaStream audioStream, IEnumerable<DirectPlayProfile> directPlayProfiles)
- {
- var mediaType = videoStream == null ? DlnaProfileType.Audio : DlnaProfileType.Video;
- var containerSupported = false;
- var audioSupported = false;
- var videoSupported = false;
- TranscodeReason reasons = 0;
- foreach (var profile in directPlayProfiles)
- {
- // Check container type
- if (profile.Type == mediaType && profile.SupportsContainer(item.Container))
- {
- containerSupported = true;
- videoSupported = videoStream != null && profile.SupportsVideoCodec(videoStream.Codec);
- audioSupported = audioStream != null && profile.SupportsAudioCodec(audioStream.Codec);
- if (videoSupported && audioSupported)
- {
- break;
- }
- }
- }
- var list = new List<TranscodeReason>();
- if (!containerSupported)
- {
- reasons |= TranscodeReason.ContainerNotSupported;
- }
- if (videoStream != null && !videoSupported)
- {
- reasons |= TranscodeReason.VideoCodecNotSupported;
- }
- if (audioStream != null && !audioSupported)
- {
- reasons |= TranscodeReason.AudioCodecNotSupported;
- }
- return reasons;
- }
- private static int? GetDefaultSubtitleStreamIndex(MediaSourceInfo item, SubtitleProfile[] subtitleProfiles)
- {
- int highestScore = -1;
- foreach (var stream in item.MediaStreams)
- {
- if (stream.Type == MediaStreamType.Subtitle
- && stream.Score.HasValue
- && stream.Score.Value > highestScore)
- {
- highestScore = stream.Score.Value;
- }
- }
- var topStreams = new List<MediaStream>();
- foreach (var stream in item.MediaStreams)
- {
- if (stream.Type == MediaStreamType.Subtitle && stream.Score.HasValue && stream.Score.Value == highestScore)
- {
- topStreams.Add(stream);
- }
- }
- // If multiple streams have an equal score, try to pick the most efficient one
- if (topStreams.Count > 1)
- {
- foreach (var stream in topStreams)
- {
- foreach (var profile in subtitleProfiles)
- {
- if (profile.Method == SubtitleDeliveryMethod.External && string.Equals(profile.Format, stream.Codec, StringComparison.OrdinalIgnoreCase))
- {
- return stream.Index;
- }
- }
- }
- }
- // If no optimization panned out, just use the original default
- return item.DefaultSubtitleStreamIndex;
- }
- private static void SetStreamInfoOptionsFromTranscodingProfile(MediaSourceInfo item, StreamInfo playlistItem, TranscodingProfile transcodingProfile)
- {
- var container = transcodingProfile.Container;
- var protocol = transcodingProfile.Protocol;
- item.TranscodingContainer = container;
- item.TranscodingSubProtocol = protocol;
- if (playlistItem.PlayMethod == PlayMethod.Transcode)
- {
- playlistItem.Container = container;
- playlistItem.SubProtocol = protocol;
- }
- playlistItem.TranscodeSeekInfo = transcodingProfile.TranscodeSeekInfo;
- if (!string.IsNullOrEmpty(transcodingProfile.MaxAudioChannels)
- && int.TryParse(transcodingProfile.MaxAudioChannels, NumberStyles.Any, CultureInfo.InvariantCulture, out int transcodingMaxAudioChannels))
- {
- playlistItem.TranscodingMaxAudioChannels = transcodingMaxAudioChannels;
- }
- playlistItem.EstimateContentLength = transcodingProfile.EstimateContentLength;
- playlistItem.CopyTimestamps = transcodingProfile.CopyTimestamps;
- playlistItem.EnableSubtitlesInManifest = transcodingProfile.EnableSubtitlesInManifest;
- playlistItem.EnableMpegtsM2TsMode = transcodingProfile.EnableMpegtsM2TsMode;
- playlistItem.BreakOnNonKeyFrames = transcodingProfile.BreakOnNonKeyFrames;
- if (transcodingProfile.MinSegments > 0)
- {
- playlistItem.MinSegments = transcodingProfile.MinSegments;
- }
- if (transcodingProfile.SegmentLength > 0)
- {
- playlistItem.SegmentLength = transcodingProfile.SegmentLength;
- }
- }
- private static void SetStreamInfoOptionsFromDirectPlayProfile(VideoOptions options, MediaSourceInfo item, StreamInfo playlistItem, DirectPlayProfile directPlayProfile)
- {
- var container = NormalizeMediaSourceFormatIntoSingleContainer(item.Container, options.Profile, DlnaProfileType.Video, directPlayProfile);
- var protocol = "http";
- item.TranscodingContainer = container;
- item.TranscodingSubProtocol = protocol;
- playlistItem.Container = container;
- playlistItem.SubProtocol = protocol;
- playlistItem.VideoCodecs = new[] { item.VideoStream.Codec };
- playlistItem.AudioCodecs = ContainerProfile.SplitValue(directPlayProfile.AudioCodec);
- }
- private StreamInfo BuildVideoItem(MediaSourceInfo item, VideoOptions options)
- {
- if (item == null)
- {
- throw new ArgumentNullException(nameof(item));
- }
- StreamInfo playlistItem = new StreamInfo
- {
- ItemId = options.ItemId,
- MediaType = DlnaProfileType.Video,
- MediaSource = item,
- RunTimeTicks = item.RunTimeTicks,
- Context = options.Context,
- DeviceProfile = options.Profile
- };
- playlistItem.SubtitleStreamIndex = options.SubtitleStreamIndex ?? GetDefaultSubtitleStreamIndex(item, options.Profile.SubtitleProfiles);
- var subtitleStream = playlistItem.SubtitleStreamIndex.HasValue ? item.GetMediaStream(MediaStreamType.Subtitle, playlistItem.SubtitleStreamIndex.Value) : null;
- var audioStream = item.GetDefaultAudioStream(options.AudioStreamIndex ?? item.DefaultAudioStreamIndex);
- if (audioStream != null)
- {
- playlistItem.AudioStreamIndex = audioStream.Index;
- }
- // Collect candidate audio streams
- IEnumerable<MediaStream> candidateAudioStreams = audioStream == null ? Array.Empty<MediaStream>() : new[] { audioStream };
- if (!options.AudioStreamIndex.HasValue || options.AudioStreamIndex < 0)
- {
- if (audioStream?.IsDefault == true)
- {
- candidateAudioStreams = item.MediaStreams.Where(stream => stream.Type == MediaStreamType.Audio && stream.IsDefault);
- }
- else
- {
- candidateAudioStreams = item.MediaStreams.Where(stream => stream.Type == MediaStreamType.Audio && stream.Language == audioStream?.Language);
- }
- }
- candidateAudioStreams = candidateAudioStreams.ToArray();
- var videoStream = item.VideoStream;
- // TODO: This doesn't account for situations where the device is able to handle the media's bitrate, but the connection isn't fast enough
- var directPlayEligibilityResult = IsEligibleForDirectPlay(item, GetBitrateForDirectPlayCheck(item, options, true) ?? 0, options, PlayMethod.DirectPlay);
- var directStreamEligibilityResult = IsEligibleForDirectPlay(item, options.GetMaxBitrate(false) ?? 0, options, PlayMethod.DirectStream);
- bool isEligibleForDirectPlay = options.EnableDirectPlay && (options.ForceDirectPlay || directPlayEligibilityResult == 0);
- bool isEligibleForDirectStream = options.EnableDirectStream && (options.ForceDirectStream || directPlayEligibilityResult == 0);
- var transcodeReasons = directPlayEligibilityResult | directStreamEligibilityResult;
- _logger.LogDebug(
- "Profile: {0}, Path: {1}, isEligibleForDirectPlay: {2}, isEligibleForDirectStream: {3}",
- options.Profile.Name ?? "Unknown Profile",
- item.Path ?? "Unknown path",
- isEligibleForDirectPlay,
- isEligibleForDirectStream);
- DirectPlayProfile directPlayProfile = null;
- if (isEligibleForDirectPlay || isEligibleForDirectStream)
- {
- // See if it can be direct played
- var directPlayInfo = GetVideoDirectPlayProfile(options, item, videoStream, audioStream, candidateAudioStreams, subtitleStream, isEligibleForDirectPlay, isEligibleForDirectStream);
- var directPlay = directPlayInfo.PlayMethod;
- transcodeReasons |= directPlayInfo.TranscodeReasons;
- if (directPlay != null)
- {
- directPlayProfile = directPlayInfo.Profile;
- playlistItem.PlayMethod = directPlay.Value;
- playlistItem.Container = NormalizeMediaSourceFormatIntoSingleContainer(item.Container, options.Profile, DlnaProfileType.Video, directPlayProfile);
- playlistItem.VideoCodecs = new[] { videoStream.Codec };
- if (directPlay == PlayMethod.DirectPlay)
- {
- playlistItem.SubProtocol = "http";
- var audioStreamIndex = directPlayInfo.AudioStreamIndex ?? audioStream?.Index;
- if (audioStreamIndex.HasValue)
- {
- playlistItem.AudioStreamIndex = audioStreamIndex;
- playlistItem.AudioCodecs = new[] { item.GetMediaStream(MediaStreamType.Audio, audioStreamIndex.Value)?.Codec };
- }
- }
- else if (directPlay == PlayMethod.DirectStream)
- {
- playlistItem.AudioStreamIndex = audioStream?.Index;
- if (audioStream != null)
- {
- playlistItem.AudioCodecs = ContainerProfile.SplitValue(directPlayProfile.AudioCodec);
- }
- SetStreamInfoOptionsFromDirectPlayProfile(options, item, playlistItem, directPlayProfile);
- BuildStreamVideoItem(playlistItem, options, item, videoStream, audioStream, candidateAudioStreams, directPlayProfile.Container, directPlayProfile.VideoCodec, directPlayProfile.AudioCodec);
- }
- if (subtitleStream != null)
- {
- var subtitleProfile = GetSubtitleProfile(item, subtitleStream, options.Profile.SubtitleProfiles, directPlay.Value, _transcoderSupport, directPlayProfile.Container, null);
- playlistItem.SubtitleDeliveryMethod = subtitleProfile.Method;
- playlistItem.SubtitleFormat = subtitleProfile.Format;
- }
- }
- _logger.LogInformation(
- "DirectPlay Result for Profile: {0}, Path: {1}, PlayMethod: {2}, AudioStreamIndex: {3}, SubtitleStreamIndex: {4}, Reasons: {5}",
- options.Profile.Name ?? "Anonymous Profile",
- item.Path ?? "Unknown path",
- directPlayInfo.PlayMethod,
- directPlayInfo.AudioStreamIndex ?? audioStream?.Index,
- playlistItem.SubtitleStreamIndex,
- directPlayInfo.TranscodeReasons);
- }
- playlistItem.TranscodeReasons = transcodeReasons;
- if (playlistItem.PlayMethod != PlayMethod.DirectStream || !options.EnableDirectStream)
- {
- // Can't direct play, find the transcoding profile
- // If we do this for direct-stream we will overwrite the info
- var transcodingProfile = GetVideoTranscodeProfile(item, options, videoStream, audioStream, candidateAudioStreams, subtitleStream, playlistItem);
- if (transcodingProfile != null)
- {
- SetStreamInfoOptionsFromTranscodingProfile(item, playlistItem, transcodingProfile);
- BuildStreamVideoItem(playlistItem, options, item, videoStream, audioStream, candidateAudioStreams, transcodingProfile.Container, transcodingProfile.VideoCodec, transcodingProfile.AudioCodec);
- if (subtitleStream != null)
- {
- var subtitleProfile = GetSubtitleProfile(item, subtitleStream, options.Profile.SubtitleProfiles, PlayMethod.Transcode, _transcoderSupport, transcodingProfile.Container, transcodingProfile.Protocol);
- playlistItem.SubtitleDeliveryMethod = subtitleProfile.Method;
- playlistItem.SubtitleFormat = subtitleProfile.Format;
- playlistItem.SubtitleCodecs = new[] { subtitleProfile.Format };
- }
- if (playlistItem.PlayMethod != PlayMethod.DirectPlay)
- {
- playlistItem.PlayMethod = PlayMethod.Transcode;
- }
- }
- }
- _logger.LogInformation(
- "StreamBuilder.BuildVideoItem( Profile={0}, Path={1}, AudioStreamIndex={2}, SubtitleStreamIndex={3} ) => ( PlayMethod={4}, TranscodeReason={5} ) {6}",
- options.Profile.Name ?? "Anonymous Profile",
- item.Path ?? "Unknown path",
- options.AudioStreamIndex,
- options.SubtitleStreamIndex,
- playlistItem.PlayMethod,
- playlistItem.TranscodeReasons,
- playlistItem.ToUrl("media:", "<token>"));
- item.Container = NormalizeMediaSourceFormatIntoSingleContainer(item.Container, options.Profile, DlnaProfileType.Video, directPlayProfile);
- return playlistItem;
- }
- private TranscodingProfile GetVideoTranscodeProfile(MediaSourceInfo item, VideoOptions options, MediaStream videoStream, MediaStream audioStream, IEnumerable<MediaStream> candidateAudioStreams, MediaStream subtitleStream, StreamInfo playlistItem)
- {
- if (!(item.SupportsTranscoding || item.SupportsDirectStream))
- {
- return null;
- }
- var transcodingProfiles = options.Profile.TranscodingProfiles
- .Where(i => i.Type == playlistItem.MediaType && i.Context == options.Context);
- if (options.AllowVideoStreamCopy)
- {
- // prefer direct copy profile
- float videoFramerate = videoStream == null ? 0 : videoStream.AverageFrameRate ?? videoStream.AverageFrameRate ?? 0;
- TransportStreamTimestamp? timestamp = videoStream == null ? TransportStreamTimestamp.None : item.Timestamp;
- int? numAudioStreams = item.GetStreamCount(MediaStreamType.Audio);
- int? numVideoStreams = item.GetStreamCount(MediaStreamType.Video);
- transcodingProfiles = transcodingProfiles.ToLookup(transcodingProfile =>
- {
- var videoCodecs = ContainerProfile.SplitValue(transcodingProfile.VideoCodec);
- if (ContainerProfile.ContainsContainer(videoCodecs, item.VideoStream.Codec))
- {
- var videoCodec = transcodingProfile.VideoCodec;
- var container = transcodingProfile.Container;
- var appliedVideoConditions = options.Profile.CodecProfiles
- .Where(i => i.Type == CodecType.Video &&
- i.ContainsAnyCodec(videoCodec, container))
- .Select(i =>
- i.ApplyConditions.Any(applyCondition => ConditionProcessor.IsVideoConditionSatisfied(applyCondition, videoStream?.Width, videoStream?.Height, videoStream?.BitDepth, videoStream?.BitRate, videoStream?.Profile, videoStream?.Level, videoFramerate, videoStream?.PacketLength, timestamp, videoStream?.IsAnamorphic, videoStream?.IsInterlaced, videoStream?.RefFrames, numVideoStreams, numAudioStreams, videoStream?.CodecTag, videoStream?.IsAVC)));
- var conditionsSatisfied = !appliedVideoConditions.Any() || !appliedVideoConditions.Any(satisfied => !satisfied);
- return conditionsSatisfied ? 1 : 2;
- }
- return 3;
- })
- .OrderBy(lookup => lookup.Key)
- .SelectMany(lookup => lookup);
- }
- return transcodingProfiles.FirstOrDefault();
- }
- private void BuildStreamVideoItem(StreamInfo playlistItem, VideoOptions options, MediaSourceInfo item, MediaStream videoStream, MediaStream audioStream, IEnumerable<MediaStream> candidateAudioStreams, string container, string videoCodec, string audioCodec)
- {
- // prefer matching video codecs
- var videoCodecs = ContainerProfile.SplitValue(videoCodec);
- var directVideoCodec = ContainerProfile.ContainsContainer(videoCodecs, videoStream.Codec) ? videoStream.Codec : null;
- playlistItem.VideoCodecs = directVideoCodec != null ? new[] { directVideoCodec } : videoCodecs;
- // copy video codec options as a starting point, this applies to transcode and direct-stream
- playlistItem.MaxFramerate = videoStream.AverageFrameRate;
- var qualifier = videoStream.Codec;
- if (videoStream.Level.HasValue)
- {
- playlistItem.SetOption(qualifier, "level", videoStream.Level.Value.ToString(CultureInfo.InvariantCulture));
- }
- if (videoStream.BitDepth.HasValue)
- {
- playlistItem.SetOption(qualifier, "videobitdepth", videoStream.BitDepth.Value.ToString(CultureInfo.InvariantCulture));
- }
- if (!string.IsNullOrEmpty(videoStream.Profile))
- {
- playlistItem.SetOption(qualifier, "profile", videoStream.Profile.ToLowerInvariant());
- }
- if (videoStream.Level != 0)
- {
- playlistItem.SetOption(qualifier, "level", videoStream.Level.ToString());
- }
- // prefer matching audio codecs, could do beter here
- var audioCodecs = ContainerProfile.SplitValue(audioCodec);
- var directAudioStream = candidateAudioStreams.FirstOrDefault(stream => ContainerProfile.ContainsContainer(audioCodecs, stream.Codec));
- playlistItem.AudioCodecs = audioCodecs;
- if (directAudioStream != null)
- {
- audioStream = directAudioStream;
- playlistItem.AudioStreamIndex = audioStream.Index;
- playlistItem.AudioCodecs = new[] { audioStream.Codec };
- // copy matching audio codec options
- playlistItem.AudioSampleRate = audioStream.SampleRate;
- playlistItem.SetOption(qualifier, "audiochannels", audioStream.Channels.ToString());
- if (!string.IsNullOrEmpty(audioStream.Profile))
- {
- playlistItem.SetOption(audioStream.Codec, "profile", audioStream.Profile.ToLowerInvariant());
- }
- if (audioStream.Level != 0)
- {
- playlistItem.SetOption(audioStream.Codec, "level", audioStream.Level.ToString());
- }
- }
- int? width = videoStream?.Width;
- int? height = videoStream?.Height;
- int? bitDepth = videoStream?.BitDepth;
- int? videoBitrate = videoStream?.BitRate;
- double? videoLevel = videoStream?.Level;
- string videoProfile = videoStream?.Profile;
- float videoFramerate = videoStream == null ? 0 : videoStream.AverageFrameRate ?? videoStream.AverageFrameRate ?? 0;
- bool? isAnamorphic = videoStream?.IsAnamorphic;
- bool? isInterlaced = videoStream?.IsInterlaced;
- string videoCodecTag = videoStream?.CodecTag;
- bool? isAvc = videoStream?.IsAVC;
- TransportStreamTimestamp? timestamp = videoStream == null ? TransportStreamTimestamp.None : item.Timestamp;
- int? packetLength = videoStream?.PacketLength;
- int? refFrames = videoStream?.RefFrames;
- int? numAudioStreams = item.GetStreamCount(MediaStreamType.Audio);
- int? numVideoStreams = item.GetStreamCount(MediaStreamType.Video);
- var appliedVideoConditions = options.Profile.CodecProfiles
- .Where(i => i.Type == CodecType.Video &&
- i.ContainsAnyCodec(videoCodec, container) &&
- i.ApplyConditions.Any(applyCondition => ConditionProcessor.IsVideoConditionSatisfied(applyCondition, width, height, bitDepth, videoBitrate, videoProfile, videoLevel, videoFramerate, packetLength, timestamp, isAnamorphic, isInterlaced, refFrames, numVideoStreams, numAudioStreams, videoCodecTag, isAvc)));
- var isFirstAppliedCodecProfile = true;
- foreach (var i in appliedVideoConditions)
- {
- var transcodingVideoCodecs = ContainerProfile.SplitValue(videoCodec);
- foreach (var transcodingVideoCodec in transcodingVideoCodecs)
- {
- if (i.ContainsAnyCodec(transcodingVideoCodec, container))
- {
- ApplyTranscodingConditions(playlistItem, i.Conditions, transcodingVideoCodec, true, isFirstAppliedCodecProfile);
- isFirstAppliedCodecProfile = false;
- continue;
- }
- }
- }
- // Honor requested max channels
- playlistItem.GlobalMaxAudioChannels = options.MaxAudioChannels;
- int audioBitrate = GetAudioBitrate(options.GetMaxBitrate(false) ?? 0, playlistItem.TargetAudioCodec, audioStream, playlistItem);
- playlistItem.AudioBitrate = Math.Min(playlistItem.AudioBitrate ?? audioBitrate, audioBitrate);
- bool? isSecondaryAudio = audioStream == null ? null : item.IsSecondaryAudio(audioStream);
- int? inputAudioBitrate = audioStream == null ? null : audioStream.BitRate;
- int? audioChannels = audioStream == null ? null : audioStream.Channels;
- string audioProfile = audioStream == null ? null : audioStream.Profile;
- int? inputAudioSampleRate = audioStream == null ? null : audioStream.SampleRate;
- int? inputAudioBitDepth = audioStream == null ? null : audioStream.BitDepth;
- var appliedAudioConditions = options.Profile.CodecProfiles
- .Where(i => i.Type == CodecType.Video &&
- i.ContainsAnyCodec(audioCodec, container) &&
- i.ApplyConditions.Any(applyCondition => ConditionProcessor.IsVideoAudioConditionSatisfied(applyCondition, audioChannels, inputAudioBitrate, inputAudioSampleRate, inputAudioBitDepth, audioProfile, isSecondaryAudio)));
- isFirstAppliedCodecProfile = true;
- foreach (var i in appliedAudioConditions)
- {
- var transcodingAudioCodecs = ContainerProfile.SplitValue(audioCodec);
- foreach (var transcodingAudioCodec in transcodingAudioCodecs)
- {
- if (i.ContainsAnyCodec(transcodingAudioCodec, container))
- {
- ApplyTranscodingConditions(playlistItem, i.Conditions, transcodingAudioCodec, true, isFirstAppliedCodecProfile);
- isFirstAppliedCodecProfile = false;
- break;
- }
- }
- }
- var maxBitrateSetting = options.GetMaxBitrate(false);
- // Honor max rate
- if (maxBitrateSetting.HasValue)
- {
- var availableBitrateForVideo = maxBitrateSetting.Value;
- if (playlistItem.AudioBitrate.HasValue)
- {
- availableBitrateForVideo -= playlistItem.AudioBitrate.Value;
- }
- // Make sure the video bitrate is lower than bitrate settings but at least 64k
- // Don't use Math.Clamp as availableBitrateForVideo can be lower then 64k.
- var currentValue = playlistItem.VideoBitrate ?? availableBitrateForVideo;
- playlistItem.VideoBitrate = Math.Max(Math.Min(availableBitrateForVideo, currentValue), 64_000);
- }
- _logger.LogInformation(
- "Transcode Result for Profile: {Profile}, Path: {Path}, PlayMethod: {PlayMethod}, AudioStreamIndex: {AudioStreamIndex}, SubtitleStreamIndex: {SubtitleStreamIndex}, Reasons: {TranscodeReason}",
- options.Profile?.Name ?? "Anonymous Profile",
- item.Path ?? "Unknown path",
- playlistItem?.PlayMethod,
- audioStream?.Index,
- playlistItem?.SubtitleStreamIndex,
- playlistItem?.TranscodeReasons);
- }
- private static int GetDefaultAudioBitrate(string audioCodec, int? audioChannels)
- {
- if (!string.IsNullOrEmpty(audioCodec))
- {
- // Default to a higher bitrate for stream copy
- if (string.Equals(audioCodec, "aac", StringComparison.OrdinalIgnoreCase)
- || string.Equals(audioCodec, "mp3", StringComparison.OrdinalIgnoreCase)
- || string.Equals(audioCodec, "ac3", StringComparison.OrdinalIgnoreCase)
- || string.Equals(audioCodec, "eac3", StringComparison.OrdinalIgnoreCase))
- {
- if ((audioChannels ?? 0) < 2)
- {
- return 128000;
- }
- return (audioChannels ?? 0) >= 6 ? 640000 : 384000;
- }
- if (string.Equals(audioCodec, "flac", StringComparison.OrdinalIgnoreCase)
- || string.Equals(audioCodec, "alac", StringComparison.OrdinalIgnoreCase))
- {
- if ((audioChannels ?? 0) < 2)
- {
- return 768000;
- }
- return (audioChannels ?? 0) >= 6 ? 3584000 : 1536000;
- }
- }
- return 192000;
- }
- private static int GetAudioBitrate(long maxTotalBitrate, string[] targetAudioCodecs, MediaStream audioStream, StreamInfo item)
- {
- string targetAudioCodec = targetAudioCodecs.Length == 0 ? null : targetAudioCodecs[0];
- int? targetAudioChannels = item.GetTargetAudioChannels(targetAudioCodec);
- int defaultBitrate;
- int encoderAudioBitrateLimit = int.MaxValue;
- if (audioStream == null)
- {
- defaultBitrate = 192000;
- }
- else
- {
- if (targetAudioChannels.HasValue
- && audioStream.Channels.HasValue
- && audioStream.Channels.Value > targetAudioChannels.Value)
- {
- // Reduce the bitrate if we're downmixing.
- defaultBitrate = GetDefaultAudioBitrate(targetAudioCodec, targetAudioChannels);
- }
- else if (targetAudioChannels.HasValue
- && audioStream.Channels.HasValue
- && audioStream.Channels.Value <= targetAudioChannels.Value
- && !string.IsNullOrEmpty(audioStream.Codec)
- && targetAudioCodecs != null
- && targetAudioCodecs.Length > 0
- && !Array.Exists(targetAudioCodecs, elem => string.Equals(audioStream.Codec, elem, StringComparison.OrdinalIgnoreCase)))
- {
- // Shift the bitrate if we're transcoding to a different audio codec.
- defaultBitrate = GetDefaultAudioBitrate(targetAudioCodec, audioStream.Channels.Value);
- }
- else
- {
- defaultBitrate = audioStream.BitRate ?? GetDefaultAudioBitrate(targetAudioCodec, targetAudioChannels);
- }
- // Seeing webm encoding failures when source has 1 audio channel and 22k bitrate.
- // Any attempts to transcode over 64k will fail
- if (audioStream.Channels == 1
- && (audioStream.BitRate ?? 0) < 64000)
- {
- encoderAudioBitrateLimit = 64000;
- }
- }
- if (maxTotalBitrate > 0)
- {
- defaultBitrate = Math.Min(GetMaxAudioBitrateForTotalBitrate(maxTotalBitrate), defaultBitrate);
- }
- return Math.Min(defaultBitrate, encoderAudioBitrateLimit);
- }
- private static int GetMaxAudioBitrateForTotalBitrate(long totalBitrate)
- {
- if (totalBitrate <= 640000)
- {
- return 128000;
- }
- else if (totalBitrate <= 2000000)
- {
- return 384000;
- }
- else if (totalBitrate <= 3000000)
- {
- return 448000;
- }
- else if (totalBitrate <= 4000000)
- {
- return 640000;
- }
- else if (totalBitrate <= 5000000)
- {
- return 768000;
- }
- else if (totalBitrate <= 10000000)
- {
- return 1536000;
- }
- else if (totalBitrate <= 15000000)
- {
- return 2304000;
- }
- else if (totalBitrate <= 20000000)
- {
- return 3584000;
- }
- return 7168000;
- }
- private (DirectPlayProfile Profile, PlayMethod? PlayMethod, int? AudioStreamIndex, TranscodeReason TranscodeReasons) GetVideoDirectPlayProfile(
- VideoOptions options,
- MediaSourceInfo mediaSource,
- MediaStream videoStream,
- MediaStream audioStream,
- IEnumerable<MediaStream> candidateAudioStreams,
- MediaStream subtitleStream,
- bool isEligibleForDirectPlay,
- bool isEligibleForDirectStream)
- {
- if (options.ForceDirectPlay)
- {
- return (null, PlayMethod.DirectPlay, audioStream?.Index, 0);
- }
- if (options.ForceDirectStream)
- {
- return (null, PlayMethod.DirectStream, audioStream?.Index, 0);
- }
- DeviceProfile profile = options.Profile;
- string container = mediaSource.Container;
- // video
- int? width = videoStream?.Width;
- int? height = videoStream?.Height;
- int? bitDepth = videoStream?.BitDepth;
- int? videoBitrate = videoStream?.BitRate;
- double? videoLevel = videoStream?.Level;
- string videoProfile = videoStream?.Profile;
- float videoFramerate = videoStream == null ? 0 : videoStream.AverageFrameRate ?? videoStream.AverageFrameRate ?? 0;
- bool? isAnamorphic = videoStream?.IsAnamorphic;
- bool? isInterlaced = videoStream?.IsInterlaced;
- string videoCodecTag = videoStream?.CodecTag;
- bool? isAvc = videoStream?.IsAVC;
- // audio
- var defaultLanguage = audioStream?.Language ?? string.Empty;
- var defaultMarked = audioStream?.IsDefault ?? false;
- TransportStreamTimestamp? timestamp = videoStream == null ? TransportStreamTimestamp.None : mediaSource.Timestamp;
- int? packetLength = videoStream?.PacketLength;
- int? refFrames = videoStream?.RefFrames;
- int? numAudioStreams = mediaSource.GetStreamCount(MediaStreamType.Audio);
- int? numVideoStreams = mediaSource.GetStreamCount(MediaStreamType.Video);
- var checkVideoConditions = (ProfileCondition[] conditions) =>
- conditions.Where(applyCondition => !ConditionProcessor.IsVideoConditionSatisfied(applyCondition, width, height, bitDepth, videoBitrate, videoProfile, videoLevel, videoFramerate, packetLength, timestamp, isAnamorphic, isInterlaced, refFrames, numVideoStreams, numAudioStreams, videoCodecTag, isAvc));
- // Check container conditions
- var containerProfileReasons = AggregateFailureConditions(
- mediaSource,
- profile,
- "VideoCodecProfile",
- profile.ContainerProfiles
- .Where(containerProfile => containerProfile.Type == DlnaProfileType.Video && containerProfile.ContainsContainer(container))
- .SelectMany(containerProfile => checkVideoConditions(containerProfile.Conditions)));
- // Check video conditions
- var videoCodecProfileReasons = AggregateFailureConditions(
- mediaSource,
- profile,
- "VideoCodecProfile",
- profile.CodecProfiles
- .Where(codecProfile => codecProfile.Type == CodecType.Video && codecProfile.ContainsAnyCodec(videoStream?.Codec, container))
- .SelectMany(codecProfile =>
- {
- var failedApplyConditions = checkVideoConditions(codecProfile.ApplyConditions);
- if (!failedApplyConditions.Any())
- {
- return Array.Empty<ProfileCondition>();
- }
- var failedConditions = checkVideoConditions(codecProfile.Conditions);
- return failedApplyConditions.Concat(failedConditions);
- }));
- // Check audiocandidates profile conditions
- var audioStreamMatches = candidateAudioStreams.ToDictionary(s => s, audioStream => CheckVideoAudioStreamDirectPlay(options, mediaSource, container, audioStream, defaultLanguage, defaultMarked));
- TranscodeReason subtitleProfileReasons = 0;
- if (subtitleStream != null)
- {
- var subtitleProfile = GetSubtitleProfile(mediaSource, subtitleStream, options.Profile.SubtitleProfiles, PlayMethod.DirectPlay, _transcoderSupport, container, null);
- if (subtitleProfile.Method != SubtitleDeliveryMethod.Drop
- && subtitleProfile.Method != SubtitleDeliveryMethod.External
- && subtitleProfile.Method != SubtitleDeliveryMethod.Embed)
- {
- _logger.LogDebug("Not eligible for {0} due to unsupported subtitles", PlayMethod.DirectPlay);
- subtitleProfileReasons |= TranscodeReason.SubtitleCodecNotSupported;
- }
- }
- var rankings = new[] { VideoReasons, AudioReasons, ContainerReasons };
- var rank = (ref TranscodeReason a) =>
- {
- var index = 1;
- foreach (var flag in rankings)
- {
- var reason = a & flag;
- if (reason != 0)
- {
- a = reason;
- return index;
- }
- index++;
- }
- return index;
- };
- // Check DirectPlay profiles to see if it can be direct played
- var analyzedProfiles = profile.DirectPlayProfiles
- .Where(directPlayProfile => directPlayProfile.Type == DlnaProfileType.Video)
- .Select((directPlayProfile, order) =>
- {
- TranscodeReason directPlayProfileReasons = 0;
- TranscodeReason audioCodecProfileReasons = 0;
- // Check container type
- if (!directPlayProfile.SupportsContainer(container))
- {
- directPlayProfileReasons |= TranscodeReason.ContainerNotSupported;
- }
- // Check video codec
- string videoCodec = videoStream?.Codec;
- if (!directPlayProfile.SupportsVideoCodec(videoCodec))
- {
- directPlayProfileReasons |= TranscodeReason.VideoCodecNotSupported;
- }
- // Check audio codec
- var selectedAudioStream = candidateAudioStreams.FirstOrDefault(audioStream => directPlayProfile.SupportsAudioCodec(audioStream.Codec));
- if (selectedAudioStream == null)
- {
- directPlayProfileReasons |= TranscodeReason.AudioCodecNotSupported;
- }
- else
- {
- audioCodecProfileReasons = audioStreamMatches.GetValueOrDefault(selectedAudioStream);
- }
- var failureReasons = directPlayProfileReasons | containerProfileReasons | videoCodecProfileReasons | audioCodecProfileReasons | subtitleProfileReasons;
- var directStreamFailureReasons = failureReasons & (~DirectStreamReasons);
- PlayMethod? playMethod = null;
- if (failureReasons == 0 && isEligibleForDirectPlay && mediaSource.SupportsDirectPlay)
- {
- playMethod = PlayMethod.DirectPlay;
- }
- else if (directStreamFailureReasons == 0 && isEligibleForDirectStream && mediaSource.SupportsDirectStream && directPlayProfile != null)
- {
- playMethod = PlayMethod.DirectStream;
- }
- var ranked = rank(ref failureReasons);
- return (Result: (Profile: directPlayProfile, PlayMethod: playMethod, AudioStreamIndex: selectedAudioStream?.Index, TranscodeReason: failureReasons), Order: order, Rank: ranked);
- })
- .OrderByDescending(analysis => analysis.Result.PlayMethod)
- .ThenBy(analysis => analysis.Order)
- .ToArray()
- .ToLookup(analysis => analysis.Result.PlayMethod != null);
- var profileMatch = analyzedProfiles[true]
- .Select(analysis => analysis.Result)
- .FirstOrDefault();
- if (profileMatch.Profile != null)
- {
- return profileMatch;
- }
- var failureReasons = analyzedProfiles[false].OrderBy(a => a.Result.TranscodeReason).ThenBy(analysis => analysis.Order).FirstOrDefault().Result.TranscodeReason;
- if (failureReasons == 0)
- {
- failureReasons = TranscodeReason.DirectPlayError;
- }
- return (Profile: null, PlayMethod: null, AudioStreamIndex: null, TranscodeReasons: failureReasons);
- }
- private TranscodeReason CheckVideoAudioStreamDirectPlay(VideoOptions options, MediaSourceInfo mediaSource, string container, MediaStream audioStream, string language, bool isDefault)
- {
- var profile = options.Profile;
- var audioFailureConditions = GetProfileConditionsForVideoAudio(profile.CodecProfiles, container, audioStream.Codec, audioStream.Channels, audioStream.BitRate, audioStream.SampleRate, audioStream.BitDepth, audioStream.Profile, !audioStream.IsDefault);
- var audioStreamFailureReasons = AggregateFailureConditions(mediaSource, profile, "VideoAudioCodecProfile", audioFailureConditions);
- if (audioStream?.IsExternal == true)
- {
- audioStreamFailureReasons |= TranscodeReason.AudioIsExternal;
- }
- return audioStreamFailureReasons;
- }
- private TranscodeReason AggregateFailureConditions(MediaSourceInfo mediaSource, DeviceProfile profile, string type, IEnumerable<ProfileCondition> conditions)
- {
- return conditions.Aggregate<ProfileCondition, TranscodeReason>(0, (reasons, i) =>
- {
- LogConditionFailure(profile, type, i, mediaSource);
- var transcodeReasons = GetTranscodeReasonForFailedCondition(i);
- return reasons | transcodeReasons;
- });
- }
- private void LogConditionFailure(DeviceProfile profile, string type, ProfileCondition condition, MediaSourceInfo mediaSource)
- {
- _logger.LogDebug(
- "Profile: {0}, DirectPlay=false. Reason={1}.{2} Condition: {3}. ConditionValue: {4}. IsRequired: {5}. Path: {6}",
- type,
- profile.Name ?? "Unknown Profile",
- condition.Property,
- condition.Condition,
- condition.Value ?? string.Empty,
- condition.IsRequired,
- mediaSource.Path ?? "Unknown path");
- }
- private TranscodeReason IsEligibleForDirectPlay(
- MediaSourceInfo item,
- long maxBitrate,
- VideoOptions options,
- PlayMethod playMethod)
- {
- bool result = IsItemBitrateEligibleForDirectPlay(item, maxBitrate, playMethod);
- if (!result)
- {
- return TranscodeReason.ContainerBitrateExceedsLimit;
- }
- else
- {
- return 0;
- }
- }
- public static SubtitleProfile GetSubtitleProfile(
- MediaSourceInfo mediaSource,
- MediaStream subtitleStream,
- SubtitleProfile[] subtitleProfiles,
- PlayMethod playMethod,
- ITranscoderSupport transcoderSupport,
- string outputContainer,
- string transcodingSubProtocol)
- {
- if (!subtitleStream.IsExternal && (playMethod != PlayMethod.Transcode || !string.Equals(transcodingSubProtocol, "hls", StringComparison.OrdinalIgnoreCase)))
- {
- // Look for supported embedded subs of the same format
- foreach (var profile in subtitleProfiles)
- {
- if (!profile.SupportsLanguage(subtitleStream.Language))
- {
- continue;
- }
- if (profile.Method != SubtitleDeliveryMethod.Embed)
- {
- continue;
- }
- if (!ContainerProfile.ContainsContainer(profile.Container, outputContainer))
- {
- continue;
- }
- if (playMethod == PlayMethod.Transcode && !IsSubtitleEmbedSupported(outputContainer))
- {
- continue;
- }
- if (subtitleStream.IsTextSubtitleStream == MediaStream.IsTextFormat(profile.Format) && string.Equals(profile.Format, subtitleStream.Codec, StringComparison.OrdinalIgnoreCase))
- {
- return profile;
- }
- }
- // Look for supported embedded subs of a convertible format
- foreach (var profile in subtitleProfiles)
- {
- if (!profile.SupportsLanguage(subtitleStream.Language))
- {
- continue;
- }
- if (profile.Method != SubtitleDeliveryMethod.Embed)
- {
- continue;
- }
- if (!ContainerProfile.ContainsContainer(profile.Container, outputContainer))
- {
- continue;
- }
- if (playMethod == PlayMethod.Transcode && !IsSubtitleEmbedSupported(outputContainer))
- {
- continue;
- }
- if (subtitleStream.IsTextSubtitleStream && subtitleStream.SupportsSubtitleConversionTo(profile.Format))
- {
- return profile;
- }
- }
- }
- // Look for an external or hls profile that matches the stream type (text/graphical) and doesn't require conversion
- return GetExternalSubtitleProfile(mediaSource, subtitleStream, subtitleProfiles, playMethod, transcoderSupport, false) ??
- GetExternalSubtitleProfile(mediaSource, subtitleStream, subtitleProfiles, playMethod, transcoderSupport, true) ??
- new SubtitleProfile
- {
- Method = SubtitleDeliveryMethod.Encode,
- Format = subtitleStream.Codec
- };
- }
- private static bool IsSubtitleEmbedSupported(string transcodingContainer)
- {
- if (!string.IsNullOrEmpty(transcodingContainer))
- {
- string[] normalizedContainers = ContainerProfile.SplitValue(transcodingContainer);
- if (ContainerProfile.ContainsContainer(normalizedContainers, "ts")
- || ContainerProfile.ContainsContainer(normalizedContainers, "mpegts")
- || ContainerProfile.ContainsContainer(normalizedContainers, "mp4"))
- {
- return false;
- }
- else if (ContainerProfile.ContainsContainer(normalizedContainers, "mkv")
- || ContainerProfile.ContainsContainer(normalizedContainers, "matroska"))
- {
- return true;
- }
- }
- return false;
- }
- private static SubtitleProfile GetExternalSubtitleProfile(MediaSourceInfo mediaSource, MediaStream subtitleStream, SubtitleProfile[] subtitleProfiles, PlayMethod playMethod, ITranscoderSupport transcoderSupport, bool allowConversion)
- {
- foreach (var profile in subtitleProfiles)
- {
- if (profile.Method != SubtitleDeliveryMethod.External && profile.Method != SubtitleDeliveryMethod.Hls)
- {
- continue;
- }
- if (profile.Method == SubtitleDeliveryMethod.Hls && playMethod != PlayMethod.Transcode)
- {
- continue;
- }
- if (!profile.SupportsLanguage(subtitleStream.Language))
- {
- continue;
- }
- if (!subtitleStream.IsExternal && !transcoderSupport.CanExtractSubtitles(subtitleStream.Codec))
- {
- continue;
- }
- if ((profile.Method == SubtitleDeliveryMethod.External && subtitleStream.IsTextSubtitleStream == MediaStream.IsTextFormat(profile.Format)) ||
- (profile.Method == SubtitleDeliveryMethod.Hls && subtitleStream.IsTextSubtitleStream))
- {
- bool requiresConversion = !string.Equals(subtitleStream.Codec, profile.Format, StringComparison.OrdinalIgnoreCase);
- if (!requiresConversion)
- {
- return profile;
- }
- if (!allowConversion)
- {
- continue;
- }
- // TODO: Build this into subtitleStream.SupportsExternalStream
- if (mediaSource.IsInfiniteStream)
- {
- continue;
- }
- if (subtitleStream.IsTextSubtitleStream && subtitleStream.SupportsExternalStream && subtitleStream.SupportsSubtitleConversionTo(profile.Format))
- {
- return profile;
- }
- }
- }
- return null;
- }
- private bool IsItemBitrateEligibleForDirectPlay(MediaSourceInfo item, long maxBitrate, PlayMethod playMethod)
- {
- // Don't restrict by bitrate if coming from an external domain
- if (item.IsRemote)
- {
- return true;
- }
- long requestedMaxBitrate = maxBitrate > 0 ? maxBitrate : 1000000;
- // If we don't know the bitrate, then force a transcode if requested max bitrate is under 40 mbps
- int itemBitrate = item.Bitrate ?? 40000000;
- if (itemBitrate > requestedMaxBitrate)
- {
- _logger.LogDebug(
- "Bitrate exceeds {PlayBackMethod} limit: media bitrate: {MediaBitrate}, max bitrate: {MaxBitrate}",
- playMethod,
- itemBitrate,
- requestedMaxBitrate);
- return false;
- }
- return true;
- }
- private static void ValidateInput(VideoOptions options)
- {
- ValidateAudioInput(options);
- if (options.AudioStreamIndex.HasValue && string.IsNullOrEmpty(options.MediaSourceId))
- {
- throw new ArgumentException("MediaSourceId is required when a specific audio stream is requested");
- }
- if (options.SubtitleStreamIndex.HasValue && string.IsNullOrEmpty(options.MediaSourceId))
- {
- throw new ArgumentException("MediaSourceId is required when a specific subtitle stream is requested");
- }
- }
- private static void ValidateAudioInput(AudioOptions options)
- {
- if (options.ItemId.Equals(default))
- {
- throw new ArgumentException("ItemId is required");
- }
- if (string.IsNullOrEmpty(options.DeviceId))
- {
- throw new ArgumentException("DeviceId is required");
- }
- if (options.Profile == null)
- {
- throw new ArgumentException("Profile is required");
- }
- if (options.MediaSources == null)
- {
- throw new ArgumentException("MediaSources is required");
- }
- }
- private static IEnumerable<ProfileCondition> GetProfileConditionsForVideoAudio(
- IEnumerable<CodecProfile> codecProfiles,
- string container,
- string codec,
- int? audioChannels,
- int? audioBitrate,
- int? audioSampleRate,
- int? audioBitDepth,
- string audioProfile,
- bool? isSecondaryAudio)
- {
- return codecProfiles
- .Where(profile => profile.Type == CodecType.VideoAudio && profile.ContainsAnyCodec(codec, container) &&
- profile.ApplyConditions.All(applyCondition => ConditionProcessor.IsVideoAudioConditionSatisfied(applyCondition, audioChannels, audioBitrate, audioSampleRate, audioBitDepth, audioProfile, isSecondaryAudio)))
- .SelectMany(profile => profile.Conditions)
- .Where(condition => !ConditionProcessor.IsVideoAudioConditionSatisfied(condition, audioChannels, audioBitrate, audioSampleRate, audioBitDepth, audioProfile, isSecondaryAudio));
- }
- private static IEnumerable<ProfileCondition> GetProfileConditionsForAudio(
- IEnumerable<CodecProfile> codecProfiles,
- string container,
- string codec,
- int? audioChannels,
- int? audioBitrate,
- int? audioSampleRate,
- int? audioBitDepth,
- bool checkConditions)
- {
- var conditions = codecProfiles
- .Where(profile => profile.Type == CodecType.Audio && profile.ContainsAnyCodec(codec, container) &&
- profile.ApplyConditions.All(applyCondition => ConditionProcessor.IsAudioConditionSatisfied(applyCondition, audioChannels, audioBitrate, audioSampleRate, audioBitDepth)))
- .SelectMany(profile => profile.Conditions);
- if (!checkConditions)
- {
- return conditions;
- }
- return conditions.Where(condition => !ConditionProcessor.IsAudioConditionSatisfied(condition, audioChannels, audioBitrate, audioSampleRate, audioBitDepth));
- }
- private void ApplyTranscodingConditions(StreamInfo item, IEnumerable<ProfileCondition> conditions, string qualifier, bool enableQualifiedConditions, bool enableNonQualifiedConditions)
- {
- foreach (ProfileCondition condition in conditions)
- {
- string value = condition.Value;
- if (string.IsNullOrEmpty(value))
- {
- continue;
- }
- // No way to express this
- if (condition.Condition == ProfileConditionType.GreaterThanEqual)
- {
- continue;
- }
- switch (condition.Property)
- {
- case ProfileConditionValue.AudioBitrate:
- {
- if (!enableNonQualifiedConditions)
- {
- continue;
- }
- if (int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var num))
- {
- if (condition.Condition == ProfileConditionType.Equals)
- {
- item.AudioBitrate = num;
- }
- else if (condition.Condition == ProfileConditionType.LessThanEqual)
- {
- item.AudioBitrate = Math.Min(num, item.AudioBitrate ?? num);
- }
- else if (condition.Condition == ProfileConditionType.GreaterThanEqual)
- {
- item.AudioBitrate = Math.Max(num, item.AudioBitrate ?? num);
- }
- }
- break;
- }
- case ProfileConditionValue.AudioSampleRate:
- {
- if (!enableNonQualifiedConditions)
- {
- continue;
- }
- if (int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var num))
- {
- if (condition.Condition == ProfileConditionType.Equals)
- {
- item.AudioSampleRate = num;
- }
- else if (condition.Condition == ProfileConditionType.LessThanEqual)
- {
- item.AudioSampleRate = Math.Min(num, item.AudioSampleRate ?? num);
- }
- else if (condition.Condition == ProfileConditionType.GreaterThanEqual)
- {
- item.AudioSampleRate = Math.Max(num, item.AudioSampleRate ?? num);
- }
- }
- break;
- }
- case ProfileConditionValue.AudioChannels:
- {
- if (string.IsNullOrEmpty(qualifier))
- {
- if (!enableNonQualifiedConditions)
- {
- continue;
- }
- }
- else
- {
- if (!enableQualifiedConditions)
- {
- continue;
- }
- }
- if (int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var num))
- {
- if (condition.Condition == ProfileConditionType.Equals)
- {
- item.SetOption(qualifier, "audiochannels", num.ToString(CultureInfo.InvariantCulture));
- }
- else if (condition.Condition == ProfileConditionType.LessThanEqual)
- {
- item.SetOption(qualifier, "audiochannels", Math.Min(num, item.GetTargetAudioChannels(qualifier) ?? num).ToString(CultureInfo.InvariantCulture));
- }
- else if (condition.Condition == ProfileConditionType.GreaterThanEqual)
- {
- item.SetOption(qualifier, "audiochannels", Math.Max(num, item.GetTargetAudioChannels(qualifier) ?? num).ToString(CultureInfo.InvariantCulture));
- }
- }
- break;
- }
- case ProfileConditionValue.IsAvc:
- {
- if (!enableNonQualifiedConditions)
- {
- continue;
- }
- if (bool.TryParse(value, out var isAvc))
- {
- if (isAvc && condition.Condition == ProfileConditionType.Equals)
- {
- item.RequireAvc = true;
- }
- else if (!isAvc && condition.Condition == ProfileConditionType.NotEquals)
- {
- item.RequireAvc = true;
- }
- }
- break;
- }
- case ProfileConditionValue.IsAnamorphic:
- {
- if (!enableNonQualifiedConditions)
- {
- continue;
- }
- if (bool.TryParse(value, out var isAnamorphic))
- {
- if (isAnamorphic && condition.Condition == ProfileConditionType.Equals)
- {
- item.RequireNonAnamorphic = true;
- }
- else if (!isAnamorphic && condition.Condition == ProfileConditionType.NotEquals)
- {
- item.RequireNonAnamorphic = true;
- }
- }
- break;
- }
- case ProfileConditionValue.IsInterlaced:
- {
- if (string.IsNullOrEmpty(qualifier))
- {
- if (!enableNonQualifiedConditions)
- {
- continue;
- }
- }
- else
- {
- if (!enableQualifiedConditions)
- {
- continue;
- }
- }
- if (bool.TryParse(value, out var isInterlaced))
- {
- if (!isInterlaced && condition.Condition == ProfileConditionType.Equals)
- {
- item.SetOption(qualifier, "deinterlace", "true");
- }
- else if (isInterlaced && condition.Condition == ProfileConditionType.NotEquals)
- {
- item.SetOption(qualifier, "deinterlace", "true");
- }
- }
- break;
- }
- case ProfileConditionValue.AudioProfile:
- case ProfileConditionValue.Has64BitOffsets:
- case ProfileConditionValue.PacketLength:
- case ProfileConditionValue.NumAudioStreams:
- case ProfileConditionValue.NumVideoStreams:
- case ProfileConditionValue.IsSecondaryAudio:
- case ProfileConditionValue.VideoTimestamp:
- {
- // Not supported yet
- break;
- }
- case ProfileConditionValue.RefFrames:
- {
- if (string.IsNullOrEmpty(qualifier))
- {
- if (!enableNonQualifiedConditions)
- {
- continue;
- }
- }
- else
- {
- if (!enableQualifiedConditions)
- {
- continue;
- }
- }
- if (int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var num))
- {
- if (condition.Condition == ProfileConditionType.Equals)
- {
- item.SetOption(qualifier, "maxrefframes", num.ToString(CultureInfo.InvariantCulture));
- }
- else if (condition.Condition == ProfileConditionType.LessThanEqual)
- {
- item.SetOption(qualifier, "maxrefframes", Math.Min(num, item.GetTargetRefFrames(qualifier) ?? num).ToString(CultureInfo.InvariantCulture));
- }
- else if (condition.Condition == ProfileConditionType.GreaterThanEqual)
- {
- item.SetOption(qualifier, "maxrefframes", Math.Max(num, item.GetTargetRefFrames(qualifier) ?? num).ToString(CultureInfo.InvariantCulture));
- }
- }
- break;
- }
- case ProfileConditionValue.VideoBitDepth:
- {
- if (string.IsNullOrEmpty(qualifier))
- {
- if (!enableNonQualifiedConditions)
- {
- continue;
- }
- }
- else
- {
- if (!enableQualifiedConditions)
- {
- continue;
- }
- }
- if (int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var num))
- {
- if (condition.Condition == ProfileConditionType.Equals)
- {
- item.SetOption(qualifier, "videobitdepth", num.ToString(CultureInfo.InvariantCulture));
- }
- else if (condition.Condition == ProfileConditionType.LessThanEqual)
- {
- item.SetOption(qualifier, "videobitdepth", Math.Min(num, item.GetTargetVideoBitDepth(qualifier) ?? num).ToString(CultureInfo.InvariantCulture));
- }
- else if (condition.Condition == ProfileConditionType.GreaterThanEqual)
- {
- item.SetOption(qualifier, "videobitdepth", Math.Max(num, item.GetTargetVideoBitDepth(qualifier) ?? num).ToString(CultureInfo.InvariantCulture));
- }
- }
- break;
- }
- case ProfileConditionValue.VideoProfile:
- {
- if (string.IsNullOrEmpty(qualifier))
- {
- continue;
- }
- // change from split by | to comma
- // strip spaces to avoid having to encode
- var values = value
- .Split('|', StringSplitOptions.RemoveEmptyEntries);
- if (condition.Condition == ProfileConditionType.Equals)
- {
- item.SetOption(qualifier, "profile", string.Join(',', values));
- }
- else if (condition.Condition == ProfileConditionType.EqualsAny)
- {
- var currentValue = item.GetOption(qualifier, "profile");
- if (!string.IsNullOrEmpty(currentValue) && values.Any(value => value == currentValue))
- {
- item.SetOption(qualifier, "profile", currentValue);
- }
- else
- {
- item.SetOption(qualifier, "profile", string.Join(',', values));
- }
- }
- break;
- }
- case ProfileConditionValue.Height:
- {
- if (!enableNonQualifiedConditions)
- {
- continue;
- }
- if (int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var num))
- {
- if (condition.Condition == ProfileConditionType.Equals)
- {
- item.MaxHeight = num;
- }
- else if (condition.Condition == ProfileConditionType.LessThanEqual)
- {
- item.MaxHeight = Math.Min(num, item.MaxHeight ?? num);
- }
- else if (condition.Condition == ProfileConditionType.GreaterThanEqual)
- {
- item.MaxHeight = Math.Max(num, item.MaxHeight ?? num);
- }
- }
- break;
- }
- case ProfileConditionValue.VideoBitrate:
- {
- if (!enableNonQualifiedConditions)
- {
- continue;
- }
- if (int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var num))
- {
- if (condition.Condition == ProfileConditionType.Equals)
- {
- item.VideoBitrate = num;
- }
- else if (condition.Condition == ProfileConditionType.LessThanEqual)
- {
- item.VideoBitrate = Math.Min(num, item.VideoBitrate ?? num);
- }
- else if (condition.Condition == ProfileConditionType.GreaterThanEqual)
- {
- item.VideoBitrate = Math.Max(num, item.VideoBitrate ?? num);
- }
- }
- break;
- }
- case ProfileConditionValue.VideoFramerate:
- {
- if (!enableNonQualifiedConditions)
- {
- continue;
- }
- if (float.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var num))
- {
- if (condition.Condition == ProfileConditionType.Equals)
- {
- item.MaxFramerate = num;
- }
- else if (condition.Condition == ProfileConditionType.LessThanEqual)
- {
- item.MaxFramerate = Math.Min(num, item.MaxFramerate ?? num);
- }
- else if (condition.Condition == ProfileConditionType.GreaterThanEqual)
- {
- item.MaxFramerate = Math.Max(num, item.MaxFramerate ?? num);
- }
- }
- break;
- }
- case ProfileConditionValue.VideoLevel:
- {
- if (string.IsNullOrEmpty(qualifier))
- {
- continue;
- }
- if (int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var num))
- {
- if (condition.Condition == ProfileConditionType.Equals)
- {
- item.SetOption(qualifier, "level", num.ToString(CultureInfo.InvariantCulture));
- }
- else if (condition.Condition == ProfileConditionType.LessThanEqual)
- {
- item.SetOption(qualifier, "level", Math.Min(num, item.GetTargetVideoLevel(qualifier) ?? num).ToString(CultureInfo.InvariantCulture));
- }
- else if (condition.Condition == ProfileConditionType.GreaterThanEqual)
- {
- item.SetOption(qualifier, "level", Math.Max(num, item.GetTargetVideoLevel(qualifier) ?? num).ToString(CultureInfo.InvariantCulture));
- }
- }
- break;
- }
- case ProfileConditionValue.Width:
- {
- if (!enableNonQualifiedConditions)
- {
- continue;
- }
- if (int.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out var num))
- {
- if (condition.Condition == ProfileConditionType.Equals)
- {
- item.MaxWidth = num;
- }
- else if (condition.Condition == ProfileConditionType.LessThanEqual)
- {
- item.MaxWidth = Math.Min(num, item.MaxWidth ?? num);
- }
- else if (condition.Condition == ProfileConditionType.GreaterThanEqual)
- {
- item.MaxWidth = Math.Max(num, item.MaxWidth ?? num);
- }
- }
- break;
- }
- default:
- break;
- }
- }
- }
- private static bool IsAudioDirectPlaySupported(DirectPlayProfile profile, MediaSourceInfo item, MediaStream audioStream)
- {
- // Check container type
- if (!profile.SupportsContainer(item.Container))
- {
- return false;
- }
- // Check audio codec
- string audioCodec = audioStream?.Codec;
- if (!profile.SupportsAudioCodec(audioCodec))
- {
- return false;
- }
- return true;
- }
- }
- }
|