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<MediaSourceInfo> mediaSources = new List<MediaSourceInfo>();
foreach (MediaSourceInfo i in options.MediaSources)
{
if (string.IsNullOrEmpty(options.MediaSourceId) ||
StringHelper.EqualsIgnoreCase(i.Id, options.MediaSourceId))
{
mediaSources.Add(i);
}
}
List<StreamInfo> 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());
}
public StreamInfo BuildVideoItem(VideoOptions options)
{
ValidateInput(options);
List<MediaSourceInfo> mediaSources = new List<MediaSourceInfo>();
foreach (MediaSourceInfo i in options.MediaSources)
{
if (string.IsNullOrEmpty(options.MediaSourceId) ||
StringHelper.EqualsIgnoreCase(i.Id, options.MediaSourceId))
{
mediaSources.Add(i);
}
}
List<StreamInfo> streams = new List<StreamInfo>();
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<StreamInfo> 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<PlayMethod> directPlayMethods = GetAudioDirectPlayMethods(item, audioStream, options);
if (directPlayMethods.Count > 0)
{
string audioCodec = audioStream == null ? null : audioStream.Codec;
// Make sure audio codec profiles are satisfied
if (!string.IsNullOrEmpty(audioCodec))
{
ConditionProcessor conditionProcessor = new ConditionProcessor();
List<ProfileCondition> conditions = new List<ProfileCondition>();
foreach (CodecProfile i in options.Profile.CodecProfiles)
{
if (i.Type == CodecType.Audio && i.ContainsCodec(audioCodec, item.Container))
{
foreach (ProfileCondition c in i.Conditions)
{
conditions.Add(c);
}
}
}
int? audioChannels = audioStream.Channels;
int? audioBitrate = audioStream.BitRate;
bool all = true;
foreach (ProfileCondition c in conditions)
{
if (!conditionProcessor.IsAudioConditionSatisfied(c, audioChannels, audioBitrate))
{
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<CodecProfile> audioCodecProfiles = new List<CodecProfile>();
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<ProfileCondition> audioTranscodingConditions = new List<ProfileCondition>();
foreach (CodecProfile i in audioCodecProfiles)
{
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<PlayMethod> 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<PlayMethod> playMethods = new List<PlayMethod>();
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()))
{
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)))
{
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<MediaStream> topStreams = new List<MediaStream>();
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 = IsEligibleForDirectPlay(item, GetBitrateForDirectPlayCheck(item, options), subtitleStream, options, PlayMethod.DirectPlay);
bool isEligibleForDirectStream = 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;
if (!string.IsNullOrEmpty(transcodingProfile.MaxAudioChannels))
{
int transcodingMaxAudioChannels;
if (IntHelper.TryParseCultureInvariant(transcodingProfile.MaxAudioChannels, out transcodingMaxAudioChannels))
{
playlistItem.TranscodingMaxAudioChannels = transcodingMaxAudioChannels;
}
}
playlistItem.SubProtocol = transcodingProfile.Protocol;
playlistItem.AudioStreamIndex = audioStreamIndex;
List<ProfileCondition> videoTranscodingConditions = new List<ProfileCondition>();
foreach (CodecProfile i in options.Profile.CodecProfiles)
{
if (i.Type == CodecType.Video && i.ContainsCodec(transcodingProfile.VideoCodec, transcodingProfile.Container))
{
foreach (ProfileCondition c in i.Conditions)
{
videoTranscodingConditions.Add(c);
}
break;
}
}
ApplyTranscodingConditions(playlistItem, videoTranscodingConditions);
List<ProfileCondition> audioTranscodingConditions = new List<ProfileCondition>();
foreach (CodecProfile i in options.Profile.CodecProfiles)
{
if (i.Type == CodecType.VideoAudio && i.ContainsCodec(playlistItem.TargetAudioCodec, transcodingProfile.Container))
{
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<ProfileCondition> conditions = new List<ProfileCondition>();
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<ProfileCondition>();
foreach (CodecProfile i in profile.CodecProfiles)
{
if (i.Type == CodecType.Video && i.ContainsCodec(videoCodec, container))
{
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<ProfileCondition>();
foreach (CodecProfile i in profile.CodecProfiles)
{
if (i.Type == CodecType.VideoAudio && i.ContainsCodec(audioCodec, container))
{
foreach (ProfileCondition c in i.Conditions)
{
conditions.Add(c);
}
}
}
foreach (ProfileCondition i in conditions)
{
bool? isSecondaryAudio = audioStream == null ? null : mediaSource.IsSecondaryAudio(audioStream);
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<ProfileCondition> 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<string> 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<string> 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<string> 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;
}
}
}