using MediaBrowser.Model.Dto; using MediaBrowser.Model.Entities; using MediaBrowser.Model.Extensions; using MediaBrowser.Model.Logging; using MediaBrowser.Model.MediaInfo; using MediaBrowser.Model.Session; using System; using System.Collections.Generic; namespace MediaBrowser.Model.Dlna { public class StreamBuilder { private readonly ILocalPlayer _localPlayer; private readonly ILogger _logger; private readonly ITranscoderSupport _transcoderSupport; public StreamBuilder(ILocalPlayer localPlayer, ITranscoderSupport transcoderSupport, ILogger logger) { _transcoderSupport = transcoderSupport; _localPlayer = localPlayer; _logger = logger; } public StreamBuilder(ITranscoderSupport transcoderSupport, ILogger logger) : this(new NullLocalPlayer(), transcoderSupport, logger) { } public StreamBuilder(ILocalPlayer localPlayer, ILogger logger) : this(localPlayer, new FullTranscoderSupport(), logger) { } public StreamBuilder(ILogger logger) : this(new NullLocalPlayer(), new FullTranscoderSupport(), logger) { } public StreamInfo BuildAudioItem(AudioOptions options) { ValidateAudioInput(options); List mediaSources = new List(); foreach (MediaSourceInfo i in options.MediaSources) { if (string.IsNullOrEmpty(options.MediaSourceId) || StringHelper.EqualsIgnoreCase(i.Id, options.MediaSourceId)) { mediaSources.Add(i); } } List streams = new List(); 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()); } public StreamInfo BuildVideoItem(VideoOptions options) { ValidateInput(options); List mediaSources = new List(); foreach (MediaSourceInfo i in options.MediaSources) { if (string.IsNullOrEmpty(options.MediaSourceId) || StringHelper.EqualsIgnoreCase(i.Id, options.MediaSourceId)) { mediaSources.Add(i); } } List streams = new List(); foreach (MediaSourceInfo i in mediaSources) { StreamInfo 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()); } private StreamInfo GetOptimalStream(List streams, int? maxBitrate) { streams = StreamInfoSorter.SortMediaSources(streams, maxBitrate); foreach (StreamInfo stream in streams) { return stream; } return null; } 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 }; MediaStream audioStream = item.GetDefaultAudioStream(null); List directPlayMethods = GetAudioDirectPlayMethods(item, audioStream, options); ConditionProcessor conditionProcessor = new ConditionProcessor(); int? inputAudioChannels = audioStream == null ? null : audioStream.Channels; int? inputAudioBitrate = audioStream == null ? null : audioStream.BitDepth; if (directPlayMethods.Count > 0) { string audioCodec = audioStream == null ? null : audioStream.Codec; // Make sure audio codec profiles are satisfied if (!string.IsNullOrEmpty(audioCodec)) { List conditions = new List(); foreach (CodecProfile i in options.Profile.CodecProfiles) { if (i.Type == CodecType.Audio && i.ContainsCodec(audioCodec, item.Container)) { bool applyConditions = true; foreach (ProfileCondition applyCondition in i.ApplyConditions) { if (!conditionProcessor.IsAudioConditionSatisfied(applyCondition, inputAudioChannels, inputAudioBitrate)) { LogConditionFailure(options.Profile, "AudioCodecProfile", applyCondition, item); applyConditions = false; break; } } if (applyConditions) { foreach (ProfileCondition c in i.Conditions) { conditions.Add(c); } } } } bool all = true; foreach (ProfileCondition c in conditions) { if (!conditionProcessor.IsAudioConditionSatisfied(c, inputAudioChannels, inputAudioBitrate)) { LogConditionFailure(options.Profile, "AudioCodecProfile", c, item); all = false; break; } } if (all) { if (item.Protocol == MediaProtocol.File && directPlayMethods.Contains(PlayMethod.DirectPlay) && _localPlayer.CanAccessFile(item.Path)) { playlistItem.PlayMethod = PlayMethod.DirectPlay; } else if (item.Protocol == MediaProtocol.Http && directPlayMethods.Contains(PlayMethod.DirectPlay) && _localPlayer.CanAccessUrl(item.Path, item.RequiredHttpHeaders.Count > 0)) { playlistItem.PlayMethod = PlayMethod.DirectPlay; } else if (directPlayMethods.Contains(PlayMethod.DirectStream)) { playlistItem.PlayMethod = PlayMethod.DirectStream; } playlistItem.Container = item.Container; return playlistItem; } } } TranscodingProfile transcodingProfile = null; foreach (TranscodingProfile i in options.Profile.TranscodingProfiles) { if (i.Type == playlistItem.MediaType && i.Context == options.Context) { if (_transcoderSupport.CanEncodeToAudioCodec(i.AudioCodec ?? i.Container)) { transcodingProfile = i; break; } } } if (transcodingProfile != null) { if (!item.SupportsTranscoding) { return null; } playlistItem.PlayMethod = PlayMethod.Transcode; playlistItem.TranscodeSeekInfo = transcodingProfile.TranscodeSeekInfo; playlistItem.EstimateContentLength = transcodingProfile.EstimateContentLength; playlistItem.Container = transcodingProfile.Container; if (string.IsNullOrEmpty(transcodingProfile.AudioCodec)) { playlistItem.AudioCodecs = new string[] { }; } else { playlistItem.AudioCodecs = transcodingProfile.AudioCodec.Split(','); } playlistItem.SubProtocol = transcodingProfile.Protocol; List audioCodecProfiles = new List(); foreach (CodecProfile i in options.Profile.CodecProfiles) { if (i.Type == CodecType.Audio && i.ContainsCodec(transcodingProfile.AudioCodec, transcodingProfile.Container)) { audioCodecProfiles.Add(i); } if (audioCodecProfiles.Count >= 1) break; } List audioTranscodingConditions = new List(); foreach (CodecProfile i in audioCodecProfiles) { bool applyConditions = true; foreach (ProfileCondition applyCondition in i.ApplyConditions) { if (!conditionProcessor.IsAudioConditionSatisfied(applyCondition, inputAudioChannels, inputAudioBitrate)) { LogConditionFailure(options.Profile, "AudioCodecProfile", applyCondition, item); applyConditions = false; break; } } if (applyConditions) { foreach (ProfileCondition c in i.Conditions) { audioTranscodingConditions.Add(c); } } } ApplyTranscodingConditions(playlistItem, audioTranscodingConditions); // Honor requested max channels if (options.MaxAudioChannels.HasValue) { int currentValue = playlistItem.MaxAudioChannels ?? options.MaxAudioChannels.Value; playlistItem.MaxAudioChannels = Math.Min(options.MaxAudioChannels.Value, currentValue); } int configuredBitrate = options.AudioTranscodingBitrate ?? (options.Context == EncodingContext.Static ? options.Profile.MusicSyncBitrate : options.Profile.MusicStreamingTranscodingBitrate) ?? 128000; playlistItem.AudioBitrate = Math.Min(configuredBitrate, playlistItem.AudioBitrate ?? configuredBitrate); } return playlistItem; } private int? GetBitrateForDirectPlayCheck(MediaSourceInfo item, AudioOptions options) { if (item.Protocol == MediaProtocol.File) { return options.Profile.MaxStaticBitrate; } return options.GetMaxBitrate(); } private List GetAudioDirectPlayMethods(MediaSourceInfo item, MediaStream audioStream, AudioOptions options) { DirectPlayProfile directPlayProfile = null; foreach (DirectPlayProfile i in options.Profile.DirectPlayProfiles) { if (i.Type == DlnaProfileType.Audio && IsAudioDirectPlaySupported(i, item, audioStream)) { directPlayProfile = i; break; } } List playMethods = new List(); if (directPlayProfile != null) { // While options takes the network and other factors into account. Only applies to direct stream if (item.SupportsDirectStream && IsAudioEligibleForDirectPlay(item, options.GetMaxBitrate()) && options.EnableDirectStream) { playMethods.Add(PlayMethod.DirectStream); } // The profile describes what the device supports // If device requirements are satisfied then allow both direct stream and direct play if (item.SupportsDirectPlay && IsAudioEligibleForDirectPlay(item, GetBitrateForDirectPlayCheck(item, options)) && options.EnableDirectPlay) { playMethods.Add(PlayMethod.DirectPlay); } } else { _logger.Info("Profile: {0}, No direct play profiles found for Path: {1}", options.Profile.Name ?? "Unknown Profile", item.Path ?? "Unknown path"); } return playMethods; } private int? GetDefaultSubtitleStreamIndex(MediaSourceInfo item, SubtitleProfile[] subtitleProfiles) { int highestScore = -1; foreach (MediaStream stream in item.MediaStreams) { if (stream.Type == MediaStreamType.Subtitle && stream.Score.HasValue) { if (stream.Score.Value > highestScore) { highestScore = stream.Score.Value; } } } List topStreams = new List(); foreach (MediaStream 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 (MediaStream stream in topStreams) { foreach (SubtitleProfile profile in subtitleProfiles) { if (profile.Method == SubtitleDeliveryMethod.External && StringHelper.EqualsIgnoreCase(profile.Format, stream.Codec)) { return stream.Index; } } } } // If no optimization panned out, just use the original default return item.DefaultSubtitleStreamIndex; } private StreamInfo BuildVideoItem(MediaSourceInfo item, VideoOptions options) { 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); MediaStream subtitleStream = playlistItem.SubtitleStreamIndex.HasValue ? item.GetMediaStream(MediaStreamType.Subtitle, playlistItem.SubtitleStreamIndex.Value) : null; MediaStream audioStream = item.GetDefaultAudioStream(options.AudioStreamIndex ?? item.DefaultAudioStreamIndex); int? audioStreamIndex = null; if (audioStream != null) { audioStreamIndex = audioStream.Index; } MediaStream videoStream = item.VideoStream; // TODO: This doesn't accout for situation of device being able to handle media bitrate, but wifi connection not fast enough bool isEligibleForDirectPlay = options.EnableDirectPlay && IsEligibleForDirectPlay(item, GetBitrateForDirectPlayCheck(item, options), subtitleStream, options, PlayMethod.DirectPlay); bool isEligibleForDirectStream = options.EnableDirectStream && IsEligibleForDirectPlay(item, options.GetMaxBitrate(), subtitleStream, options, PlayMethod.DirectStream); _logger.Info("Profile: {0}, Path: {1}, isEligibleForDirectPlay: {2}, isEligibleForDirectStream: {3}", options.Profile.Name ?? "Unknown Profile", item.Path ?? "Unknown path", isEligibleForDirectPlay, isEligibleForDirectStream); if (isEligibleForDirectPlay || isEligibleForDirectStream) { // See if it can be direct played PlayMethod? directPlay = GetVideoDirectPlayProfile(options.Profile, item, videoStream, audioStream, isEligibleForDirectPlay, isEligibleForDirectStream); if (directPlay != null) { playlistItem.PlayMethod = directPlay.Value; playlistItem.Container = item.Container; if (subtitleStream != null) { SubtitleProfile subtitleProfile = GetSubtitleProfile(subtitleStream, options.Profile.SubtitleProfiles, directPlay.Value); playlistItem.SubtitleDeliveryMethod = subtitleProfile.Method; playlistItem.SubtitleFormat = subtitleProfile.Format; } return playlistItem; } } // Can't direct play, find the transcoding profile TranscodingProfile transcodingProfile = null; foreach (TranscodingProfile i in options.Profile.TranscodingProfiles) { if (i.Type == playlistItem.MediaType && i.Context == options.Context) { transcodingProfile = i; break; } } if (transcodingProfile != null) { if (!item.SupportsTranscoding) { return null; } if (subtitleStream != null) { SubtitleProfile subtitleProfile = GetSubtitleProfile(subtitleStream, options.Profile.SubtitleProfiles, PlayMethod.Transcode); playlistItem.SubtitleDeliveryMethod = subtitleProfile.Method; playlistItem.SubtitleFormat = subtitleProfile.Format; } playlistItem.PlayMethod = PlayMethod.Transcode; playlistItem.Container = transcodingProfile.Container; playlistItem.EstimateContentLength = transcodingProfile.EstimateContentLength; playlistItem.TranscodeSeekInfo = transcodingProfile.TranscodeSeekInfo; playlistItem.AudioCodecs = transcodingProfile.AudioCodec.Split(','); playlistItem.VideoCodec = transcodingProfile.VideoCodec; playlistItem.CopyTimestamps = transcodingProfile.CopyTimestamps; playlistItem.ForceLiveStream = transcodingProfile.ForceLiveStream; playlistItem.EnableSubtitlesInManifest = transcodingProfile.EnableSubtitlesInManifest; if (!string.IsNullOrEmpty(transcodingProfile.MaxAudioChannels)) { int transcodingMaxAudioChannels; if (IntHelper.TryParseCultureInvariant(transcodingProfile.MaxAudioChannels, out transcodingMaxAudioChannels)) { playlistItem.TranscodingMaxAudioChannels = transcodingMaxAudioChannels; } } playlistItem.SubProtocol = transcodingProfile.Protocol; playlistItem.AudioStreamIndex = audioStreamIndex; ConditionProcessor conditionProcessor = new ConditionProcessor(); List videoTranscodingConditions = new List(); foreach (CodecProfile i in options.Profile.CodecProfiles) { if (i.Type == CodecType.Video && i.ContainsCodec(transcodingProfile.VideoCodec, transcodingProfile.Container)) { bool applyConditions = true; foreach (ProfileCondition applyCondition in i.ApplyConditions) { 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; if (!conditionProcessor.IsVideoAudioConditionSatisfied(applyCondition, audioChannels, inputAudioBitrate, audioProfile, isSecondaryAudio)) { LogConditionFailure(options.Profile, "AudioCodecProfile", applyCondition, item); applyConditions = false; break; } } if (applyConditions) { foreach (ProfileCondition c in i.Conditions) { videoTranscodingConditions.Add(c); } break; } } } ApplyTranscodingConditions(playlistItem, videoTranscodingConditions); List audioTranscodingConditions = new List(); foreach (CodecProfile i in options.Profile.CodecProfiles) { if (i.Type == CodecType.VideoAudio && i.ContainsCodec(playlistItem.TargetAudioCodec, transcodingProfile.Container)) { bool applyConditions = true; foreach (ProfileCondition applyCondition in i.ApplyConditions) { int? width = videoStream == null ? null : videoStream.Width; int? height = videoStream == null ? null : videoStream.Height; int? bitDepth = videoStream == null ? null : videoStream.BitDepth; int? videoBitrate = videoStream == null ? null : videoStream.BitRate; double? videoLevel = videoStream == null ? null : videoStream.Level; string videoProfile = videoStream == null ? null : videoStream.Profile; float? videoFramerate = videoStream == null ? null : videoStream.AverageFrameRate ?? videoStream.AverageFrameRate; bool? isAnamorphic = videoStream == null ? null : videoStream.IsAnamorphic; string videoCodecTag = videoStream == null ? null : videoStream.CodecTag; TransportStreamTimestamp? timestamp = videoStream == null ? TransportStreamTimestamp.None : item.Timestamp; int? packetLength = videoStream == null ? null : videoStream.PacketLength; int? refFrames = videoStream == null ? null : videoStream.RefFrames; int? numAudioStreams = item.GetStreamCount(MediaStreamType.Audio); int? numVideoStreams = item.GetStreamCount(MediaStreamType.Video); if (!conditionProcessor.IsVideoConditionSatisfied(applyCondition, width, height, bitDepth, videoBitrate, videoProfile, videoLevel, videoFramerate, packetLength, timestamp, isAnamorphic, refFrames, numVideoStreams, numAudioStreams, videoCodecTag)) { LogConditionFailure(options.Profile, "VideoCodecProfile", applyCondition, item); applyConditions = false; break; } } if (applyConditions) { foreach (ProfileCondition c in i.Conditions) { audioTranscodingConditions.Add(c); } break; } } } ApplyTranscodingConditions(playlistItem, audioTranscodingConditions); // Honor requested max channels if (options.MaxAudioChannels.HasValue) { int currentValue = playlistItem.MaxAudioChannels ?? options.MaxAudioChannels.Value; playlistItem.MaxAudioChannels = Math.Min(options.MaxAudioChannels.Value, currentValue); } int audioBitrate = GetAudioBitrate(options.GetMaxBitrate(), playlistItem.TargetAudioChannels, playlistItem.TargetAudioCodec, audioStream); playlistItem.AudioBitrate = Math.Min(playlistItem.AudioBitrate ?? audioBitrate, audioBitrate); int? maxBitrateSetting = options.GetMaxBitrate(); // Honor max rate if (maxBitrateSetting.HasValue) { int videoBitrate = maxBitrateSetting.Value; if (playlistItem.AudioBitrate.HasValue) { videoBitrate -= playlistItem.AudioBitrate.Value; } // Make sure the video bitrate is lower than bitrate settings but at least 64k int currentValue = playlistItem.VideoBitrate ?? videoBitrate; playlistItem.VideoBitrate = Math.Max(Math.Min(videoBitrate, currentValue), 64000); } } return playlistItem; } private int GetAudioBitrate(int? maxTotalBitrate, int? targetAudioChannels, string targetAudioCodec, MediaStream audioStream) { var defaultBitrate = 128000; if (StringHelper.EqualsIgnoreCase(targetAudioCodec, "ac3")) { defaultBitrate = 192000; } if (targetAudioChannels.HasValue) { if (targetAudioChannels.Value >= 5 && (maxTotalBitrate ?? 0) >= 2000000) { if (StringHelper.EqualsIgnoreCase(targetAudioCodec, "ac3")) { defaultBitrate = 448000; } else { defaultBitrate = 320000; } } } int encoderAudioBitrateLimit = int.MaxValue; if (audioStream != null) { // Seeing webm encoding failures when source has 1 audio channel and 22k bitrate. // Any attempts to transcode over 64k will fail if (audioStream.Channels.HasValue && audioStream.Channels.Value == 1) { if ((audioStream.BitRate ?? 0) < 64000) { encoderAudioBitrateLimit = 64000; } } } return Math.Min(defaultBitrate, encoderAudioBitrateLimit); } private PlayMethod? GetVideoDirectPlayProfile(DeviceProfile profile, MediaSourceInfo mediaSource, MediaStream videoStream, MediaStream audioStream, bool isEligibleForDirectPlay, bool isEligibleForDirectStream) { if (videoStream == null) { _logger.Info("Profile: {0}, Cannot direct stream with no known video stream. Path: {1}", profile.Name ?? "Unknown Profile", mediaSource.Path ?? "Unknown path"); return null; } // See if it can be direct played DirectPlayProfile directPlay = null; foreach (DirectPlayProfile i in profile.DirectPlayProfiles) { if (i.Type == DlnaProfileType.Video && IsVideoDirectPlaySupported(i, mediaSource, videoStream, audioStream)) { directPlay = i; break; } } if (directPlay == null) { _logger.Info("Profile: {0}, No direct play profiles found for Path: {1}", profile.Name ?? "Unknown Profile", mediaSource.Path ?? "Unknown path"); return null; } string container = mediaSource.Container; List conditions = new List(); foreach (ContainerProfile i in profile.ContainerProfiles) { if (i.Type == DlnaProfileType.Video && ListHelper.ContainsIgnoreCase(i.GetContainers(), container)) { foreach (ProfileCondition c in i.Conditions) { conditions.Add(c); } } } ConditionProcessor conditionProcessor = new ConditionProcessor(); int? width = videoStream == null ? null : videoStream.Width; int? height = videoStream == null ? null : videoStream.Height; int? bitDepth = videoStream == null ? null : videoStream.BitDepth; int? videoBitrate = videoStream == null ? null : videoStream.BitRate; double? videoLevel = videoStream == null ? null : videoStream.Level; string videoProfile = videoStream == null ? null : videoStream.Profile; float? videoFramerate = videoStream == null ? null : videoStream.AverageFrameRate ?? videoStream.AverageFrameRate; bool? isAnamorphic = videoStream == null ? null : videoStream.IsAnamorphic; string videoCodecTag = videoStream == null ? null : videoStream.CodecTag; int? audioBitrate = audioStream == null ? null : audioStream.BitRate; int? audioChannels = audioStream == null ? null : audioStream.Channels; string audioProfile = audioStream == null ? null : audioStream.Profile; TransportStreamTimestamp? timestamp = videoStream == null ? TransportStreamTimestamp.None : mediaSource.Timestamp; int? packetLength = videoStream == null ? null : videoStream.PacketLength; int? refFrames = videoStream == null ? null : videoStream.RefFrames; int? numAudioStreams = mediaSource.GetStreamCount(MediaStreamType.Audio); int? numVideoStreams = mediaSource.GetStreamCount(MediaStreamType.Video); // Check container conditions foreach (ProfileCondition i in conditions) { if (!conditionProcessor.IsVideoConditionSatisfied(i, width, height, bitDepth, videoBitrate, videoProfile, videoLevel, videoFramerate, packetLength, timestamp, isAnamorphic, refFrames, numVideoStreams, numAudioStreams, videoCodecTag)) { LogConditionFailure(profile, "VideoContainerProfile", i, mediaSource); return null; } } string videoCodec = videoStream == null ? null : videoStream.Codec; if (string.IsNullOrEmpty(videoCodec)) { _logger.Info("Profile: {0}, DirectPlay=false. Reason=Unknown video codec. Path: {1}", profile.Name ?? "Unknown Profile", mediaSource.Path ?? "Unknown path"); return null; } conditions = new List(); foreach (CodecProfile i in profile.CodecProfiles) { if (i.Type == CodecType.Video && i.ContainsCodec(videoCodec, container)) { bool applyConditions = true; foreach (ProfileCondition applyCondition in i.ApplyConditions) { if (!conditionProcessor.IsVideoConditionSatisfied(applyCondition, width, height, bitDepth, videoBitrate, videoProfile, videoLevel, videoFramerate, packetLength, timestamp, isAnamorphic, refFrames, numVideoStreams, numAudioStreams, videoCodecTag)) { LogConditionFailure(profile, "VideoCodecProfile", applyCondition, mediaSource); applyConditions = false; break; } } if (applyConditions) { foreach (ProfileCondition c in i.Conditions) { conditions.Add(c); } } } } foreach (ProfileCondition i in conditions) { if (!conditionProcessor.IsVideoConditionSatisfied(i, width, height, bitDepth, videoBitrate, videoProfile, videoLevel, videoFramerate, packetLength, timestamp, isAnamorphic, refFrames, numVideoStreams, numAudioStreams, videoCodecTag)) { LogConditionFailure(profile, "VideoCodecProfile", i, mediaSource); return null; } } if (audioStream != null) { string audioCodec = audioStream.Codec; if (string.IsNullOrEmpty(audioCodec)) { _logger.Info("Profile: {0}, DirectPlay=false. Reason=Unknown audio codec. Path: {1}", profile.Name ?? "Unknown Profile", mediaSource.Path ?? "Unknown path"); return null; } conditions = new List(); bool? isSecondaryAudio = audioStream == null ? null : mediaSource.IsSecondaryAudio(audioStream); foreach (CodecProfile i in profile.CodecProfiles) { if (i.Type == CodecType.VideoAudio && i.ContainsCodec(audioCodec, container)) { bool applyConditions = true; foreach (ProfileCondition applyCondition in i.ApplyConditions) { if (!conditionProcessor.IsVideoAudioConditionSatisfied(applyCondition, audioChannels, audioBitrate, audioProfile, isSecondaryAudio)) { LogConditionFailure(profile, "VideoAudioCodecProfile", applyCondition, mediaSource); applyConditions = false; break; } } if (applyConditions) { foreach (ProfileCondition c in i.Conditions) { conditions.Add(c); } } } } foreach (ProfileCondition i in conditions) { if (!conditionProcessor.IsVideoAudioConditionSatisfied(i, audioChannels, audioBitrate, audioProfile, isSecondaryAudio)) { LogConditionFailure(profile, "VideoAudioCodecProfile", i, mediaSource); return null; } } } if (isEligibleForDirectPlay && mediaSource.SupportsDirectPlay) { if (mediaSource.Protocol == MediaProtocol.Http) { if (_localPlayer.CanAccessUrl(mediaSource.Path, mediaSource.RequiredHttpHeaders.Count > 0)) { return PlayMethod.DirectPlay; } } else if (mediaSource.Protocol == MediaProtocol.File) { if (_localPlayer.CanAccessFile(mediaSource.Path)) { return PlayMethod.DirectPlay; } } } if (isEligibleForDirectStream && mediaSource.SupportsDirectStream) { return PlayMethod.DirectStream; } return null; } private void LogConditionFailure(DeviceProfile profile, string type, ProfileCondition condition, MediaSourceInfo mediaSource) { _logger.Info("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 bool IsEligibleForDirectPlay(MediaSourceInfo item, int? maxBitrate, MediaStream subtitleStream, VideoOptions options, PlayMethod playMethod) { if (subtitleStream != null) { SubtitleProfile subtitleProfile = GetSubtitleProfile(subtitleStream, options.Profile.SubtitleProfiles, playMethod); if (subtitleProfile.Method != SubtitleDeliveryMethod.External && subtitleProfile.Method != SubtitleDeliveryMethod.Embed) { _logger.Info("Not eligible for {0} due to unsupported subtitles", playMethod); return false; } } return IsAudioEligibleForDirectPlay(item, maxBitrate); } public static SubtitleProfile GetSubtitleProfile(MediaStream subtitleStream, SubtitleProfile[] subtitleProfiles, PlayMethod playMethod) { if (playMethod != PlayMethod.Transcode && !subtitleStream.IsExternal) { // Look for supported embedded subs foreach (SubtitleProfile profile in subtitleProfiles) { if (!profile.SupportsLanguage(subtitleStream.Language)) { continue; } if (profile.Method != SubtitleDeliveryMethod.Embed) { continue; } if (subtitleStream.IsTextSubtitleStream == MediaStream.IsTextFormat(profile.Format) && StringHelper.EqualsIgnoreCase(profile.Format, subtitleStream.Codec)) { return profile; } } } // Look for an external or hls profile that matches the stream type (text/graphical) and doesn't require conversion return GetExternalSubtitleProfile(subtitleStream, subtitleProfiles, playMethod, false) ?? GetExternalSubtitleProfile(subtitleStream, subtitleProfiles, playMethod, true) ?? new SubtitleProfile { Method = SubtitleDeliveryMethod.Encode, Format = subtitleStream.Codec }; } private static SubtitleProfile GetExternalSubtitleProfile(MediaStream subtitleStream, SubtitleProfile[] subtitleProfiles, PlayMethod playMethod, bool allowConversion) { foreach (SubtitleProfile 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 ((profile.Method == SubtitleDeliveryMethod.External && subtitleStream.IsTextSubtitleStream == MediaStream.IsTextFormat(profile.Format)) || (profile.Method == SubtitleDeliveryMethod.Hls && subtitleStream.IsTextSubtitleStream)) { bool requiresConversion = !StringHelper.EqualsIgnoreCase(subtitleStream.Codec, profile.Format); if (!requiresConversion) { return profile; } if (!allowConversion) { continue; } if (subtitleStream.IsTextSubtitleStream && subtitleStream.SupportsExternalStream && subtitleStream.SupportsSubtitleConversionTo(profile.Format)) { return profile; } } } return null; } private bool IsAudioEligibleForDirectPlay(MediaSourceInfo item, int? maxBitrate) { if (!maxBitrate.HasValue) { _logger.Info("Cannot direct play due to unknown supported bitrate"); return false; } if (!item.Bitrate.HasValue) { _logger.Info("Cannot direct play due to unknown content bitrate"); return false; } if (item.Bitrate.Value > maxBitrate.Value) { _logger.Info("Bitrate exceeds DirectPlay limit"); return false; } return true; } private 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 void ValidateAudioInput(AudioOptions options) { if (string.IsNullOrEmpty(options.ItemId)) { 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 void ApplyTranscodingConditions(StreamInfo item, IEnumerable conditions) { 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: { int num; if (IntHelper.TryParseCultureInvariant(value, out num)) { item.AudioBitrate = num; } break; } case ProfileConditionValue.AudioChannels: { int num; if (IntHelper.TryParseCultureInvariant(value, out num)) { item.MaxAudioChannels = num; } break; } case ProfileConditionValue.IsAnamorphic: 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: { int num; if (IntHelper.TryParseCultureInvariant(value, out num)) { item.MaxRefFrames = num; } break; } case ProfileConditionValue.VideoBitDepth: { int num; if (IntHelper.TryParseCultureInvariant(value, out num)) { item.MaxVideoBitDepth = num; } break; } case ProfileConditionValue.VideoProfile: { item.VideoProfile = (value ?? string.Empty).Split('|')[0]; break; } case ProfileConditionValue.Height: { int num; if (IntHelper.TryParseCultureInvariant(value, out num)) { item.MaxHeight = num; } break; } case ProfileConditionValue.VideoBitrate: { int num; if (IntHelper.TryParseCultureInvariant(value, out num)) { item.VideoBitrate = num; } break; } case ProfileConditionValue.VideoFramerate: { float num; if (FloatHelper.TryParseCultureInvariant(value, out num)) { item.MaxFramerate = num; } break; } case ProfileConditionValue.VideoLevel: { int num; if (IntHelper.TryParseCultureInvariant(value, out num)) { item.VideoLevel = num; } break; } case ProfileConditionValue.Width: { int num; if (IntHelper.TryParseCultureInvariant(value, out num)) { item.MaxWidth = num; } break; } } } } private bool IsAudioDirectPlaySupported(DirectPlayProfile profile, MediaSourceInfo item, MediaStream audioStream) { if (profile.Container.Length > 0) { // Check container type string mediaContainer = item.Container ?? string.Empty; bool any = false; foreach (string i in profile.GetContainers()) { if (StringHelper.EqualsIgnoreCase(i, mediaContainer)) { any = true; break; } } if (!any) { return false; } } // Check audio codec List audioCodecs = profile.GetAudioCodecs(); if (audioCodecs.Count > 0) { // Check audio codecs string audioCodec = audioStream == null ? null : audioStream.Codec; if (string.IsNullOrEmpty(audioCodec) || !ListHelper.ContainsIgnoreCase(audioCodecs, audioCodec)) { return false; } } return true; } private bool IsVideoDirectPlaySupported(DirectPlayProfile profile, MediaSourceInfo item, MediaStream videoStream, MediaStream audioStream) { if (profile.Container.Length > 0) { // Check container type string mediaContainer = item.Container ?? string.Empty; bool any = false; foreach (string i in profile.GetContainers()) { if (StringHelper.EqualsIgnoreCase(i, mediaContainer)) { any = true; break; } } if (!any) { return false; } } // Check video codec List videoCodecs = profile.GetVideoCodecs(); if (videoCodecs.Count > 0) { string videoCodec = videoStream == null ? null : videoStream.Codec; if (string.IsNullOrEmpty(videoCodec) || !ListHelper.ContainsIgnoreCase(videoCodecs, videoCodec)) { return false; } } // Check audio codec List audioCodecs = profile.GetAudioCodecs(); if (audioCodecs.Count > 0) { // Check audio codecs string audioCodec = audioStream == null ? null : audioStream.Codec; if (string.IsNullOrEmpty(audioCodec) || !ListHelper.ContainsIgnoreCase(audioCodecs, audioCodec)) { return false; } } return true; } } }