jellyfin-server/MediaBrowser.Model/Dlna/StreamBuilder.cs

1054 lines
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C#
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using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Extensions;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Model.MediaInfo;
using MediaBrowser.Model.Session;
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using System;
using System.Collections.Generic;
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namespace MediaBrowser.Model.Dlna
{
public class StreamBuilder
{
private readonly ILocalPlayer _localPlayer;
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private readonly ILogger _logger;
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public StreamBuilder(ILocalPlayer localPlayer, ILogger logger)
{
_localPlayer = localPlayer;
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_logger = logger;
}
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public StreamBuilder(ILogger logger)
: this(new NullLocalPlayer(), logger)
{
}
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public StreamInfo BuildAudioItem(AudioOptions options)
{
ValidateAudioInput(options);
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List<MediaSourceInfo> mediaSources = new List<MediaSourceInfo>();
foreach (MediaSourceInfo i in options.MediaSources)
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{
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if (string.IsNullOrEmpty(options.MediaSourceId) ||
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StringHelper.EqualsIgnoreCase(i.Id, options.MediaSourceId))
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{
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mediaSources.Add(i);
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}
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}
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List<StreamInfo> streams = new List<StreamInfo>();
foreach (MediaSourceInfo i in mediaSources)
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{
StreamInfo streamInfo = BuildAudioItem(i, options);
if (streamInfo != null)
{
streams.Add(streamInfo);
}
}
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foreach (StreamInfo stream in streams)
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{
stream.DeviceId = options.DeviceId;
stream.DeviceProfileId = options.Profile.Id;
}
return GetOptimalStream(streams);
}
public StreamInfo BuildVideoItem(VideoOptions options)
{
ValidateInput(options);
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List<MediaSourceInfo> mediaSources = new List<MediaSourceInfo>();
foreach (MediaSourceInfo i in options.MediaSources)
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{
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if (string.IsNullOrEmpty(options.MediaSourceId) ||
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StringHelper.EqualsIgnoreCase(i.Id, options.MediaSourceId))
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{
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mediaSources.Add(i);
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}
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}
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List<StreamInfo> streams = new List<StreamInfo>();
foreach (MediaSourceInfo i in mediaSources)
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{
StreamInfo streamInfo = BuildVideoItem(i, options);
if (streamInfo != null)
{
streams.Add(streamInfo);
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}
}
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foreach (StreamInfo stream in streams)
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{
stream.DeviceId = options.DeviceId;
stream.DeviceProfileId = options.Profile.Id;
}
return GetOptimalStream(streams);
}
private StreamInfo GetOptimalStream(List<StreamInfo> streams)
{
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streams = StreamInfoSorter.SortMediaSources(streams);
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foreach (StreamInfo stream in streams)
{
return stream;
}
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return null;
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}
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private StreamInfo BuildAudioItem(MediaSourceInfo item, AudioOptions options)
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{
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StreamInfo playlistItem = new StreamInfo
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{
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ItemId = options.ItemId,
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MediaType = DlnaProfileType.Audio,
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MediaSource = item,
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RunTimeTicks = item.RunTimeTicks,
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Context = options.Context,
DeviceProfile = options.Profile
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};
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MediaStream audioStream = item.GetDefaultAudioStream(null);
List<PlayMethod> directPlayMethods = GetAudioDirectPlayMethods(item, audioStream, options);
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if (directPlayMethods.Count > 0)
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{
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string audioCodec = audioStream == null ? null : audioStream.Codec;
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// Make sure audio codec profiles are satisfied
if (!string.IsNullOrEmpty(audioCodec))
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{
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ConditionProcessor conditionProcessor = new ConditionProcessor();
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List<ProfileCondition> conditions = new List<ProfileCondition>();
foreach (CodecProfile i in options.Profile.CodecProfiles)
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{
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if (i.Type == CodecType.Audio && i.ContainsCodec(audioCodec, item.Container))
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{
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foreach (ProfileCondition c in i.Conditions)
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{
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conditions.Add(c);
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}
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}
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}
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int? audioChannels = audioStream.Channels;
int? audioBitrate = audioStream.BitRate;
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bool all = true;
foreach (ProfileCondition c in conditions)
{
if (!conditionProcessor.IsAudioConditionSatisfied(c, audioChannels, audioBitrate))
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{
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LogConditionFailure(options.Profile, "AudioCodecProfile", c, item);
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all = false;
break;
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}
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}
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if (all)
{
if (item.Protocol == MediaProtocol.File &&
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directPlayMethods.Contains(PlayMethod.DirectPlay) &&
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_localPlayer.CanAccessFile(item.Path))
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{
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playlistItem.PlayMethod = PlayMethod.DirectPlay;
}
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else if (item.Protocol == MediaProtocol.Http &&
directPlayMethods.Contains(PlayMethod.DirectPlay) &&
_localPlayer.CanAccessUrl(item.Path, item.RequiredHttpHeaders.Count > 0))
{
playlistItem.PlayMethod = PlayMethod.DirectPlay;
}
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else if (directPlayMethods.Contains(PlayMethod.DirectStream))
{
playlistItem.PlayMethod = PlayMethod.DirectStream;
}
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playlistItem.Container = item.Container;
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return playlistItem;
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}
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}
}
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TranscodingProfile transcodingProfile = null;
foreach (TranscodingProfile i in options.Profile.TranscodingProfiles)
{
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if (i.Type == playlistItem.MediaType && i.Context == options.Context)
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{
transcodingProfile = i;
break;
}
}
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if (transcodingProfile != null)
{
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if (!item.SupportsTranscoding)
{
return null;
}
playlistItem.PlayMethod = PlayMethod.Transcode;
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playlistItem.TranscodeSeekInfo = transcodingProfile.TranscodeSeekInfo;
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playlistItem.EstimateContentLength = transcodingProfile.EstimateContentLength;
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playlistItem.Container = transcodingProfile.Container;
playlistItem.AudioCodec = transcodingProfile.AudioCodec;
playlistItem.SubProtocol = transcodingProfile.Protocol;
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List<CodecProfile> audioCodecProfiles = new List<CodecProfile>();
foreach (CodecProfile i in options.Profile.CodecProfiles)
{
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if (i.Type == CodecType.Audio && i.ContainsCodec(transcodingProfile.AudioCodec, transcodingProfile.Container))
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{
audioCodecProfiles.Add(i);
}
if (audioCodecProfiles.Count >= 1) break;
}
List<ProfileCondition> audioTranscodingConditions = new List<ProfileCondition>();
foreach (CodecProfile i in audioCodecProfiles)
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{
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foreach (ProfileCondition c in i.Conditions)
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{
audioTranscodingConditions.Add(c);
}
}
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ApplyTranscodingConditions(playlistItem, audioTranscodingConditions);
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// Honor requested max channels
if (options.MaxAudioChannels.HasValue)
{
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int currentValue = playlistItem.MaxAudioChannels ?? options.MaxAudioChannels.Value;
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playlistItem.MaxAudioChannels = Math.Min(options.MaxAudioChannels.Value, currentValue);
}
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int configuredBitrate = options.AudioTranscodingBitrate ??
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(options.Context == EncodingContext.Static ? options.Profile.MusicSyncBitrate : options.Profile.MusicStreamingTranscodingBitrate) ??
128000;
playlistItem.AudioBitrate = Math.Min(configuredBitrate, playlistItem.AudioBitrate ?? configuredBitrate);
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}
return playlistItem;
}
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private int? GetBitrateForDirectPlayCheck(MediaSourceInfo item, AudioOptions options)
{
if (item.Protocol == MediaProtocol.File)
{
return options.Profile.MaxStaticBitrate;
}
return options.GetMaxBitrate();
}
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private List<PlayMethod> GetAudioDirectPlayMethods(MediaSourceInfo item, MediaStream audioStream, AudioOptions options)
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{
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
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if (item.SupportsDirectStream && IsAudioEligibleForDirectPlay(item, options.GetMaxBitrate()))
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{
playMethods.Add(PlayMethod.DirectStream);
}
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// The profile describes what the device supports
// If device requirements are satisfied then allow both direct stream and direct play
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if (item.SupportsDirectPlay &&
IsAudioEligibleForDirectPlay(item, GetBitrateForDirectPlayCheck(item, options)))
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{
playMethods.Add(PlayMethod.DirectPlay);
}
}
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else
{
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_logger.Info("Profile: {0}, No direct play profiles found for Path: {1}",
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options.Profile.Name ?? "Unknown Profile",
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item.Path ?? "Unknown path");
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}
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return playMethods;
}
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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;
}
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}
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}
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;
}
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private StreamInfo BuildVideoItem(MediaSourceInfo item, VideoOptions options)
{
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StreamInfo playlistItem = new StreamInfo
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{
ItemId = options.ItemId,
MediaType = DlnaProfileType.Video,
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MediaSource = item,
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RunTimeTicks = item.RunTimeTicks,
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Context = options.Context,
DeviceProfile = options.Profile
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};
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playlistItem.SubtitleStreamIndex = options.SubtitleStreamIndex ?? GetDefaultSubtitleStreamIndex(item, options.Profile.SubtitleProfiles);
MediaStream subtitleStream = playlistItem.SubtitleStreamIndex.HasValue ? item.GetMediaStream(MediaStreamType.Subtitle, playlistItem.SubtitleStreamIndex.Value) : null;
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MediaStream audioStream = item.GetDefaultAudioStream(options.AudioStreamIndex ?? item.DefaultAudioStreamIndex);
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int? audioStreamIndex = null;
if (audioStream != null)
{
audioStreamIndex = audioStream.Index;
}
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MediaStream videoStream = item.VideoStream;
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// TODO: This doesn't accout for situation of device being able to handle media bitrate, but wifi connection not fast enough
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bool isEligibleForDirectPlay = IsEligibleForDirectPlay(item, GetBitrateForDirectPlayCheck(item, options), subtitleStream, options, PlayMethod.DirectPlay);
bool isEligibleForDirectStream = IsEligibleForDirectPlay(item, options.GetMaxBitrate(), subtitleStream, options, PlayMethod.DirectStream);
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_logger.Info("Profile: {0}, Path: {1}, isEligibleForDirectPlay: {2}, isEligibleForDirectStream: {3}",
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options.Profile.Name ?? "Unknown Profile",
item.Path ?? "Unknown path",
isEligibleForDirectPlay,
isEligibleForDirectStream);
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if (isEligibleForDirectPlay || isEligibleForDirectStream)
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{
// See if it can be direct played
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PlayMethod? directPlay = GetVideoDirectPlayProfile(options.Profile, item, videoStream, audioStream, isEligibleForDirectPlay, isEligibleForDirectStream);
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if (directPlay != null)
{
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playlistItem.PlayMethod = directPlay.Value;
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playlistItem.Container = item.Container;
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if (subtitleStream != null)
{
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SubtitleProfile subtitleProfile = GetSubtitleProfile(subtitleStream, options.Profile.SubtitleProfiles, options.Context, directPlay.Value);
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playlistItem.SubtitleDeliveryMethod = subtitleProfile.Method;
playlistItem.SubtitleFormat = subtitleProfile.Format;
}
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return playlistItem;
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}
}
// Can't direct play, find the transcoding profile
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TranscodingProfile transcodingProfile = null;
foreach (TranscodingProfile i in options.Profile.TranscodingProfiles)
{
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if (i.Type == playlistItem.MediaType && i.Context == options.Context)
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{
transcodingProfile = i;
break;
}
}
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if (transcodingProfile != null)
{
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if (!item.SupportsTranscoding)
{
return null;
}
if (subtitleStream != null)
{
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SubtitleProfile subtitleProfile = GetSubtitleProfile(subtitleStream, options.Profile.SubtitleProfiles, options.Context, PlayMethod.Transcode);
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playlistItem.SubtitleDeliveryMethod = subtitleProfile.Method;
playlistItem.SubtitleFormat = subtitleProfile.Format;
}
playlistItem.PlayMethod = PlayMethod.Transcode;
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playlistItem.Container = transcodingProfile.Container;
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playlistItem.EstimateContentLength = transcodingProfile.EstimateContentLength;
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playlistItem.TranscodeSeekInfo = transcodingProfile.TranscodeSeekInfo;
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playlistItem.AudioCodec = transcodingProfile.AudioCodec.Split(',')[0];
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playlistItem.VideoCodec = transcodingProfile.VideoCodec;
playlistItem.SubProtocol = transcodingProfile.Protocol;
playlistItem.AudioStreamIndex = audioStreamIndex;
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List<ProfileCondition> videoTranscodingConditions = new List<ProfileCondition>();
foreach (CodecProfile i in options.Profile.CodecProfiles)
{
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if (i.Type == CodecType.Video && i.ContainsCodec(transcodingProfile.VideoCodec, transcodingProfile.Container))
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{
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foreach (ProfileCondition c in i.Conditions)
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{
videoTranscodingConditions.Add(c);
}
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break;
}
}
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ApplyTranscodingConditions(playlistItem, videoTranscodingConditions);
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List<ProfileCondition> audioTranscodingConditions = new List<ProfileCondition>();
foreach (CodecProfile i in options.Profile.CodecProfiles)
{
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if (i.Type == CodecType.VideoAudio && i.ContainsCodec(playlistItem.AudioCodec, transcodingProfile.Container))
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{
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foreach (ProfileCondition c in i.Conditions)
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{
audioTranscodingConditions.Add(c);
}
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break;
}
}
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ApplyTranscodingConditions(playlistItem, audioTranscodingConditions);
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// Honor requested max channels
if (options.MaxAudioChannels.HasValue)
{
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int currentValue = playlistItem.MaxAudioChannels ?? options.MaxAudioChannels.Value;
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playlistItem.MaxAudioChannels = Math.Min(options.MaxAudioChannels.Value, currentValue);
}
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int audioBitrate = GetAudioBitrate(options.GetMaxBitrate(), playlistItem.TargetAudioChannels, playlistItem.TargetAudioCodec, audioStream);
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playlistItem.AudioBitrate = Math.Min(playlistItem.AudioBitrate ?? audioBitrate, audioBitrate);
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int? maxBitrateSetting = options.GetMaxBitrate();
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// Honor max rate
if (maxBitrateSetting.HasValue)
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{
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int videoBitrate = maxBitrateSetting.Value;
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if (playlistItem.AudioBitrate.HasValue)
{
videoBitrate -= playlistItem.AudioBitrate.Value;
}
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// Make sure the video bitrate is lower than bitrate settings but at least 64k
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int currentValue = playlistItem.VideoBitrate ?? videoBitrate;
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playlistItem.VideoBitrate = Math.Max(Math.Min(videoBitrate, currentValue), 64000);
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}
}
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return playlistItem;
}
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private int GetAudioBitrate(int? maxTotalBitrate, int? targetAudioChannels, string targetAudioCodec, MediaStream audioStream)
{
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var defaultBitrate = 128000;
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if (targetAudioChannels.HasValue)
{
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if (targetAudioChannels.Value >= 5 && (maxTotalBitrate ?? 0) >= 2000000)
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{
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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;
}
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}
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}
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return Math.Min(defaultBitrate, encoderAudioBitrateLimit);
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}
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private PlayMethod? GetVideoDirectPlayProfile(DeviceProfile profile,
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MediaSourceInfo mediaSource,
MediaStream videoStream,
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MediaStream audioStream,
bool isEligibleForDirectPlay,
bool isEligibleForDirectStream)
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{
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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;
}
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// See if it can be direct played
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DirectPlayProfile directPlay = null;
foreach (DirectPlayProfile i in profile.DirectPlayProfiles)
{
if (i.Type == DlnaProfileType.Video && IsVideoDirectPlaySupported(i, mediaSource, videoStream, audioStream))
{
directPlay = i;
break;
}
}
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if (directPlay == null)
{
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_logger.Info("Profile: {0}, No direct play profiles found for Path: {1}",
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profile.Name ?? "Unknown Profile",
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mediaSource.Path ?? "Unknown path");
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return null;
}
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string container = mediaSource.Container;
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List<ProfileCondition> conditions = new List<ProfileCondition>();
foreach (ContainerProfile i in profile.ContainerProfiles)
{
if (i.Type == DlnaProfileType.Video &&
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ListHelper.ContainsIgnoreCase(i.GetContainers(), container))
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{
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foreach (ProfileCondition c in i.Conditions)
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{
conditions.Add(c);
}
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}
}
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ConditionProcessor conditionProcessor = new ConditionProcessor();
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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;
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bool? isAnamorphic = videoStream == null ? null : videoStream.IsAnamorphic;
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bool? isCabac = videoStream == null ? null : videoStream.IsCabac;
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string videoCodecTag = videoStream == null ? null : videoStream.CodecTag;
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int? audioBitrate = audioStream == null ? null : audioStream.BitRate;
int? audioChannels = audioStream == null ? null : audioStream.Channels;
string audioProfile = audioStream == null ? null : audioStream.Profile;
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TransportStreamTimestamp? timestamp = videoStream == null ? TransportStreamTimestamp.None : mediaSource.Timestamp;
int? packetLength = videoStream == null ? null : videoStream.PacketLength;
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int? refFrames = videoStream == null ? null : videoStream.RefFrames;
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int? numAudioStreams = mediaSource.GetStreamCount(MediaStreamType.Audio);
int? numVideoStreams = mediaSource.GetStreamCount(MediaStreamType.Video);
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// Check container conditions
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foreach (ProfileCondition i in conditions)
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{
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if (!conditionProcessor.IsVideoConditionSatisfied(i, width, height, bitDepth, videoBitrate, videoProfile, videoLevel, videoFramerate, packetLength, timestamp, isAnamorphic, isCabac, refFrames, numVideoStreams, numAudioStreams, videoCodecTag))
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{
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LogConditionFailure(profile, "VideoContainerProfile", i, mediaSource);
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return null;
}
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}
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string videoCodec = videoStream == null ? null : videoStream.Codec;
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if (string.IsNullOrEmpty(videoCodec))
{
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_logger.Info("Profile: {0}, DirectPlay=false. Reason=Unknown video codec. Path: {1}",
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profile.Name ?? "Unknown Profile",
mediaSource.Path ?? "Unknown path");
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return null;
}
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conditions = new List<ProfileCondition>();
foreach (CodecProfile i in profile.CodecProfiles)
{
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if (i.Type == CodecType.Video && i.ContainsCodec(videoCodec, container))
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{
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foreach (ProfileCondition c in i.Conditions)
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{
conditions.Add(c);
}
}
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}
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foreach (ProfileCondition i in conditions)
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{
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if (!conditionProcessor.IsVideoConditionSatisfied(i, width, height, bitDepth, videoBitrate, videoProfile, videoLevel, videoFramerate, packetLength, timestamp, isAnamorphic, isCabac, refFrames, numVideoStreams, numAudioStreams, videoCodecTag))
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{
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LogConditionFailure(profile, "VideoCodecProfile", i, mediaSource);
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return null;
}
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}
if (audioStream != null)
{
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string audioCodec = audioStream.Codec;
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if (string.IsNullOrEmpty(audioCodec))
{
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_logger.Info("Profile: {0}, DirectPlay=false. Reason=Unknown audio codec. Path: {1}",
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profile.Name ?? "Unknown Profile",
mediaSource.Path ?? "Unknown path");
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return null;
}
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conditions = new List<ProfileCondition>();
foreach (CodecProfile i in profile.CodecProfiles)
{
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if (i.Type == CodecType.VideoAudio && i.ContainsCodec(audioCodec, container))
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{
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foreach (ProfileCondition c in i.Conditions)
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{
conditions.Add(c);
}
}
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}
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foreach (ProfileCondition i in conditions)
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{
bool? isSecondaryAudio = audioStream == null ? null : mediaSource.IsSecondaryAudio(audioStream);
if (!conditionProcessor.IsVideoAudioConditionSatisfied(i, audioChannels, audioBitrate, audioProfile, isSecondaryAudio))
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{
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LogConditionFailure(profile, "VideoAudioCodecProfile", i, mediaSource);
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return null;
}
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}
}
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if (isEligibleForDirectPlay && mediaSource.SupportsDirectPlay)
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{
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if (mediaSource.Protocol == MediaProtocol.Http)
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{
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if (_localPlayer.CanAccessUrl(mediaSource.Path, mediaSource.RequiredHttpHeaders.Count > 0))
{
return PlayMethod.DirectPlay;
}
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}
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else if (mediaSource.Protocol == MediaProtocol.File)
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{
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if (_localPlayer.CanAccessFile(mediaSource.Path))
{
return PlayMethod.DirectPlay;
}
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}
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}
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if (isEligibleForDirectStream && mediaSource.SupportsDirectStream)
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{
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return PlayMethod.DirectStream;
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}
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return null;
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}
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private void LogConditionFailure(DeviceProfile profile, string type, ProfileCondition condition, MediaSourceInfo mediaSource)
{
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_logger.Info("Profile: {0}, DirectPlay=false. Reason={1}.{2} Condition: {3}. ConditionValue: {4}. IsRequired: {5}. Path: {6}",
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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,
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VideoOptions options,
PlayMethod playMethod)
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{
if (subtitleStream != null)
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{
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SubtitleProfile subtitleProfile = GetSubtitleProfile(subtitleStream, options.Profile.SubtitleProfiles, options.Context, playMethod);
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if (subtitleProfile.Method != SubtitleDeliveryMethod.External && subtitleProfile.Method != SubtitleDeliveryMethod.Embed)
{
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_logger.Info("Not eligible for {0} due to unsupported subtitles", playMethod);
return false;
}
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}
return IsAudioEligibleForDirectPlay(item, maxBitrate);
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}
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public static SubtitleProfile GetSubtitleProfile(MediaStream subtitleStream, SubtitleProfile[] subtitleProfiles, EncodingContext context, PlayMethod playMethod)
{
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if (playMethod != PlayMethod.Transcode && !subtitleStream.IsExternal)
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{
// Look for supported embedded subs
foreach (SubtitleProfile profile in subtitleProfiles)
{
if (!profile.SupportsLanguage(subtitleStream.Language))
{
continue;
}
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if (profile.Method != SubtitleDeliveryMethod.Embed)
{
continue;
}
if (subtitleStream.IsTextSubtitleStream == MediaStream.IsTextFormat(profile.Format) && StringHelper.EqualsIgnoreCase(profile.Format, subtitleStream.Codec))
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{
return profile;
}
}
}
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// Look for an external profile that matches the stream type (text/graphical)
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foreach (SubtitleProfile profile in subtitleProfiles)
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{
if (profile.Method != SubtitleDeliveryMethod.External)
{
continue;
}
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if (!profile.SupportsLanguage(subtitleStream.Language))
{
continue;
}
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if (subtitleStream.IsTextSubtitleStream == MediaStream.IsTextFormat(profile.Format))
{
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bool requiresConversion = !StringHelper.EqualsIgnoreCase(subtitleStream.Codec, profile.Format);
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if (subtitleStream.IsTextSubtitleStream || !requiresConversion)
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{
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if (subtitleStream.SupportsExternalStream)
{
return profile;
}
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// For sync we can handle the longer extraction times
if (context == EncodingContext.Static && subtitleStream.IsTextSubtitleStream)
{
return profile;
}
}
}
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}
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return new SubtitleProfile
{
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Method = SubtitleDeliveryMethod.Encode,
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Format = subtitleStream.Codec
};
}
private bool IsAudioEligibleForDirectPlay(MediaSourceInfo item, int? maxBitrate)
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{
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if (!maxBitrate.HasValue || (item.Bitrate.HasValue && item.Bitrate.Value <= maxBitrate.Value))
{
return true;
}
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_logger.Info("Bitrate exceeds DirectPlay limit");
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return false;
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}
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)
{
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foreach (ProfileCondition condition in conditions)
2014-04-01 22:23:07 +00:00
{
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string value = condition.Value;
2014-04-01 22:23:07 +00:00
2014-05-09 19:43:06 +00:00
if (string.IsNullOrEmpty(value))
{
continue;
}
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// No way to express this
if (condition.Condition == ProfileConditionType.GreaterThanEqual)
{
continue;
}
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switch (condition.Property)
{
case ProfileConditionValue.AudioBitrate:
{
int num;
if (IntHelper.TryParseCultureInvariant(value, out num))
2014-04-01 22:23:07 +00:00
{
item.AudioBitrate = num;
}
break;
}
case ProfileConditionValue.AudioChannels:
{
int num;
if (IntHelper.TryParseCultureInvariant(value, out num))
2014-04-01 22:23:07 +00:00
{
item.MaxAudioChannels = num;
}
break;
}
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case ProfileConditionValue.IsCabac:
{
bool val;
if (BoolHelper.TryParseCultureInvariant(value, out val))
{
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if (condition.Condition == ProfileConditionType.Equals)
{
item.Cabac = val;
}
else if (condition.Condition == ProfileConditionType.NotEquals)
{
item.Cabac = !val;
}
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}
break;
}
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case ProfileConditionValue.IsAnamorphic:
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case ProfileConditionValue.AudioProfile:
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case ProfileConditionValue.Has64BitOffsets:
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case ProfileConditionValue.PacketLength:
case ProfileConditionValue.NumAudioStreams:
case ProfileConditionValue.NumVideoStreams:
case ProfileConditionValue.IsSecondaryAudio:
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case ProfileConditionValue.VideoTimestamp:
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{
// Not supported yet
break;
}
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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;
}
2014-04-24 05:08:10 +00:00
case ProfileConditionValue.VideoProfile:
{
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item.VideoProfile = (value ?? string.Empty).Split('|')[0];
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break;
}
2014-04-01 22:23:07 +00:00
case ProfileConditionValue.Height:
{
int num;
if (IntHelper.TryParseCultureInvariant(value, out num))
2014-04-01 22:23:07 +00:00
{
item.MaxHeight = num;
}
break;
}
case ProfileConditionValue.VideoBitrate:
{
int num;
if (IntHelper.TryParseCultureInvariant(value, out num))
2014-04-01 22:23:07 +00:00
{
item.VideoBitrate = num;
}
break;
}
case ProfileConditionValue.VideoFramerate:
{
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float num;
if (FloatHelper.TryParseCultureInvariant(value, out num))
2014-04-01 22:23:07 +00:00
{
item.MaxFramerate = num;
}
break;
}
case ProfileConditionValue.VideoLevel:
{
int num;
if (IntHelper.TryParseCultureInvariant(value, out num))
2014-04-01 22:23:07 +00:00
{
item.VideoLevel = num;
}
break;
}
case ProfileConditionValue.Width:
{
int num;
if (IntHelper.TryParseCultureInvariant(value, out num))
2014-04-01 22:23:07 +00:00
{
item.MaxWidth = num;
}
break;
}
}
}
}
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private bool IsAudioDirectPlaySupported(DirectPlayProfile profile, MediaSourceInfo item, MediaStream audioStream)
2014-04-01 22:23:07 +00:00
{
if (profile.Container.Length > 0)
{
// Check container type
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string mediaContainer = item.Container ?? string.Empty;
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bool any = false;
foreach (string i in profile.GetContainers())
{
if (StringHelper.EqualsIgnoreCase(i, mediaContainer))
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{
any = true;
break;
}
}
if (!any)
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{
return false;
}
}
return true;
}
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private bool IsVideoDirectPlaySupported(DirectPlayProfile profile, MediaSourceInfo item, MediaStream videoStream, MediaStream audioStream)
2014-04-01 22:23:07 +00:00
{
if (profile.Container.Length > 0)
{
// Check container type
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string mediaContainer = item.Container ?? string.Empty;
2014-05-09 19:43:06 +00:00
bool any = false;
foreach (string i in profile.GetContainers())
{
if (StringHelper.EqualsIgnoreCase(i, mediaContainer))
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{
any = true;
break;
}
}
if (!any)
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{
return false;
}
}
// Check video codec
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List<string> videoCodecs = profile.GetVideoCodecs();
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if (videoCodecs.Count > 0)
{
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string videoCodec = videoStream == null ? null : videoStream.Codec;
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if (string.IsNullOrEmpty(videoCodec) || !ListHelper.ContainsIgnoreCase(videoCodecs, videoCodec))
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{
return false;
}
}
2014-05-08 20:09:53 +00:00
List<string> audioCodecs = profile.GetAudioCodecs();
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if (audioCodecs.Count > 0)
{
// Check audio codecs
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string audioCodec = audioStream == null ? null : audioStream.Codec;
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if (string.IsNullOrEmpty(audioCodec) || !ListHelper.ContainsIgnoreCase(audioCodecs, audioCodec))
2014-04-01 22:23:07 +00:00
{
return false;
}
}
return true;
}
}
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}