private bool InternalTextStreamSupportsExternalStream(MediaStream stream)
{
// These usually have styles and fonts that won't convert to text very well
if (string.Equals(stream.Codec, "ass", StringComparison.OrdinalIgnoreCase))
{
return false;
}
return true;
}
private bool StreamSupportsExternalStream(MediaStream stream)
{
if (stream.IsExternal)
{
return true;
}
if (stream.IsTextSubtitleStream)
{
return true;
}
return false;
}
private bool StreamSupportsExternalStream(MediaStream stream)
{
if (stream.IsExternal)
{
return true;
}
if (stream.IsTextSubtitleStream)
{
if (string.Equals(stream.Codec, "ass", StringComparison.OrdinalIgnoreCase))
{
return false;
}
return true;
}
return false;
}
/// <summary>
/// Determines whether the specified stream is H264.
/// </summary>
/// <param name="stream">The stream.</param>
/// <returns><c>true</c> if the specified stream is H264; otherwise, <c>false</c>.</returns>
protected bool IsH264(MediaStream stream)
{
return stream.Codec.IndexOf("264", StringComparison.OrdinalIgnoreCase) != -1 ||
stream.Codec.IndexOf("avc", StringComparison.OrdinalIgnoreCase) != -1;
}
private bool CanStreamCopyAudio(StreamRequest request, MediaStream audioStream, List<string> supportedAudioCodecs)
{
// Source and target codecs must match
if (string.IsNullOrEmpty(audioStream.Codec) || !supportedAudioCodecs.Contains(audioStream.Codec, StringComparer.OrdinalIgnoreCase))
{
return false;
}
// Video bitrate must fall within requested value
if (request.AudioBitRate.HasValue)
{
if (!audioStream.BitRate.HasValue || audioStream.BitRate.Value <= 0)
{
return false;
}
if (audioStream.BitRate.Value > request.AudioBitRate.Value)
{
return false;
}
}
// Channels must fall within requested value
var channels = request.AudioChannels ?? request.MaxAudioChannels;
if (channels.HasValue)
{
if (!audioStream.Channels.HasValue || audioStream.Channels.Value <= 0)
{
return false;
}
if (audioStream.Channels.Value > channels.Value)
{
return false;
}
}
// Sample rate must fall within requested value
if (request.AudioSampleRate.HasValue)
{
if (!audioStream.SampleRate.HasValue || audioStream.SampleRate.Value <= 0)
{
return false;
}
if (audioStream.SampleRate.Value > request.AudioSampleRate.Value)
{
return false;
}
}
return true;
}
private int? GetAudioBitrateParam(StreamRequest request, MediaStream audioStream)
{
if (request.AudioBitRate.HasValue)
{
// Make sure we don't request a bitrate higher than the source
var currentBitrate = audioStream == null ? request.AudioBitRate.Value : audioStream.BitRate ?? request.AudioBitRate.Value;
return request.AudioBitRate.Value;
//return Math.Min(currentBitrate, request.AudioBitRate.Value);
}
return null;
}
/// <summary>
/// Converts ffprobe stream info to our MediaStream class
/// </summary>
/// <param name="isAudio">if set to <c>true</c> [is audio].</param>
/// <param name="streamInfo">The stream info.</param>
/// <param name="formatInfo">The format info.</param>
/// <returns>MediaStream.</returns>
private MediaStream GetMediaStream(bool isAudio, MediaStreamInfo streamInfo, MediaFormatInfo formatInfo)
{
// These are mp4 chapters
if (string.Equals(streamInfo.codec_name, "mov_text", StringComparison.OrdinalIgnoreCase))
{
return null;
}
var stream = new MediaStream
{
Codec = streamInfo.codec_name,
Profile = streamInfo.profile,
Level = streamInfo.level,
Index = streamInfo.index,
PixelFormat = streamInfo.pix_fmt
};
// Filter out junk
if (!string.IsNullOrWhiteSpace(streamInfo.codec_tag_string) && streamInfo.codec_tag_string.IndexOf("[0]", StringComparison.OrdinalIgnoreCase) == -1)
{
stream.CodecTag = streamInfo.codec_tag_string;
}
if (streamInfo.tags != null)
{
stream.Language = GetDictionaryValue(streamInfo.tags, "language");
}
if (string.Equals(streamInfo.codec_type, "audio", StringComparison.OrdinalIgnoreCase))
{
stream.Type = MediaStreamType.Audio;
stream.Channels = streamInfo.channels;
if (!string.IsNullOrEmpty(streamInfo.sample_rate))
{
int value;
if (int.TryParse(streamInfo.sample_rate, NumberStyles.Any, _usCulture, out value))
{
stream.SampleRate = value;
}
}
stream.ChannelLayout = ParseChannelLayout(streamInfo.channel_layout);
if (streamInfo.bits_per_sample > 0)
{
stream.BitDepth = streamInfo.bits_per_sample;
}
else if (streamInfo.bits_per_raw_sample > 0)
{
stream.BitDepth = streamInfo.bits_per_raw_sample;
}
}
else if (string.Equals(streamInfo.codec_type, "subtitle", StringComparison.OrdinalIgnoreCase))
{
stream.Type = MediaStreamType.Subtitle;
}
else if (string.Equals(streamInfo.codec_type, "video", StringComparison.OrdinalIgnoreCase))
{
stream.Type = isAudio || string.Equals(stream.Codec, "mjpeg", StringComparison.OrdinalIgnoreCase)
? MediaStreamType.EmbeddedImage
: MediaStreamType.Video;
stream.Width = streamInfo.width;
stream.Height = streamInfo.height;
stream.AspectRatio = GetAspectRatio(streamInfo);
stream.AverageFrameRate = GetFrameRate(streamInfo.avg_frame_rate);
stream.RealFrameRate = GetFrameRate(streamInfo.r_frame_rate);
if (streamInfo.bits_per_sample > 0)
{
stream.BitDepth = streamInfo.bits_per_sample;
}
else if (streamInfo.bits_per_raw_sample > 0)
{
stream.BitDepth = streamInfo.bits_per_raw_sample;
}
//stream.IsAnamorphic = string.Equals(streamInfo.sample_aspect_ratio, "0:1", StringComparison.OrdinalIgnoreCase) ||
// string.Equals(stream.AspectRatio, "2.35:1", StringComparison.OrdinalIgnoreCase) ||
// string.Equals(stream.AspectRatio, "2.40:1", StringComparison.OrdinalIgnoreCase);
// http://stackoverflow.com/questions/17353387/how-to-detect-anamorphic-video-with-ffprobe
stream.IsAnamorphic = string.Equals(streamInfo.sample_aspect_ratio, "0:1", StringComparison.OrdinalIgnoreCase);
if (streamInfo.refs > 0)
{
stream.RefFrames = streamInfo.refs;
}
}
else
{
return null;
}
// Get stream bitrate
var bitrate = 0;
if (!string.IsNullOrEmpty(streamInfo.bit_rate))
{
int value;
if (int.TryParse(streamInfo.bit_rate, NumberStyles.Any, _usCulture, out value))
{
bitrate = value;
}
}
if (bitrate == 0 && formatInfo != null && !string.IsNullOrEmpty(formatInfo.bit_rate) && stream.Type == MediaStreamType.Video)
{
// If the stream info doesn't have a bitrate get the value from the media format info
int value;
if (int.TryParse(formatInfo.bit_rate, NumberStyles.Any, _usCulture, out value))
{
bitrate = value;
}
}
if (bitrate > 0)
{
stream.BitRate = bitrate;
}
if (streamInfo.disposition != null)
{
var isDefault = GetDictionaryValue(streamInfo.disposition, "default");
var isForced = GetDictionaryValue(streamInfo.disposition, "forced");
stream.IsDefault = string.Equals(isDefault, "1", StringComparison.OrdinalIgnoreCase);
stream.IsForced = string.Equals(isForced, "1", StringComparison.OrdinalIgnoreCase);
}
return stream;
}
/// <summary>
/// Determines whether the specified stream is H264.
/// </summary>
/// <param name="stream">The stream.</param>
/// <returns><c>true</c> if the specified stream is H264; otherwise, <c>false</c>.</returns>
protected bool IsH264(MediaStream stream)
{
var codec = stream.Codec ?? string.Empty;
return codec.IndexOf("264", StringComparison.OrdinalIgnoreCase) != -1 ||
codec.IndexOf("avc", StringComparison.OrdinalIgnoreCase) != -1;
}
public bool? IsSecondaryAudio(MediaStream stream)
{
// Look for the first audio track marked as default
foreach (MediaStream currentStream in MediaStreams)
{
if (currentStream.Type == MediaStreamType.Audio && currentStream.IsDefault)
{
return currentStream.Index != stream.Index;
}
}
// Look for the first audio track
foreach (MediaStream currentStream in MediaStreams)
{
if (currentStream.Type == MediaStreamType.Audio)
{
return currentStream.Index != stream.Index;
}
}
return null;
}
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;
}
}
return true;
}
public static SubtitleProfile GetSubtitleProfile(MediaStream subtitleStream, SubtitleProfile[] subtitleProfiles, EncodingContext context)
{
// Look for an external profile that matches the stream type (text/graphical)
foreach (SubtitleProfile profile in subtitleProfiles)
{
bool requiresConversion = !StringHelper.EqualsIgnoreCase(subtitleStream.Codec, profile.Format);
if (!profile.SupportsLanguage(subtitleStream.Language))
{
continue;
}
if (profile.Method == SubtitleDeliveryMethod.External && subtitleStream.IsTextSubtitleStream == MediaStream.IsTextFormat(profile.Format))
{
if (!requiresConversion)
{
return profile;
}
if (subtitleStream.SupportsExternalStream)
{
return profile;
}
// For sync we can handle the longer extraction times
if (context == EncodingContext.Static && subtitleStream.IsTextSubtitleStream)
{
return profile;
}
}
}
foreach (SubtitleProfile profile in subtitleProfiles)
{
bool requiresConversion = !StringHelper.EqualsIgnoreCase(subtitleStream.Codec, profile.Format);
if (!profile.SupportsLanguage(subtitleStream.Language))
{
continue;
}
if (profile.Method == SubtitleDeliveryMethod.Embed && subtitleStream.IsTextSubtitleStream == MediaStream.IsTextFormat(profile.Format))
{
if (!requiresConversion)
{
return profile;
}
return profile;
}
}
return new SubtitleProfile
{
Method = SubtitleDeliveryMethod.Encode,
Format = subtitleStream.Codec
};
}
private bool IsEligibleForDirectPlay(MediaSourceInfo item,
int? maxBitrate,
MediaStream subtitleStream,
VideoOptions options)
{
if (subtitleStream != null)
{
SubtitleProfile subtitleProfile = GetSubtitleProfile(subtitleStream, options.Profile.SubtitleProfiles, options.Context);
if (subtitleProfile.Method != SubtitleDeliveryMethod.External && subtitleProfile.Method != SubtitleDeliveryMethod.Embed)
{
return false;
}
}
return IsAudioEligibleForDirectPlay(item, maxBitrate);
}
private PlayMethod? GetVideoDirectPlayProfile(DeviceProfile profile,
MediaSourceInfo mediaSource,
MediaStream videoStream,
MediaStream audioStream,
bool isEligibleForDirectPlay,
bool isEligibleForDirectStream)
{
// 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.Debug("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;
bool? isCabac = videoStream == null ? null : videoStream.IsCabac;
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, isCabac, refFrames, numVideoStreams, numAudioStreams))
{
LogConditionFailure(profile, "VideoContainerProfile", i, mediaSource);
return null;
}
}
string videoCodec = videoStream == null ? null : videoStream.Codec;
if (string.IsNullOrEmpty(videoCodec))
{
_logger.Debug("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, isCabac, refFrames, numVideoStreams, numAudioStreams))
{
LogConditionFailure(profile, "VideoCodecProfile", i, mediaSource);
return null;
}
}
if (audioStream != null)
{
string audioCodec = audioStream.Codec;
if (string.IsNullOrEmpty(audioCodec))
{
_logger.Debug("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 int GetAudioBitrate(int? maxTotalBitrate, int? targetAudioChannels, string targetAudioCodec, MediaStream audioStream)
{
var defaultBitrate = 128000;
if (targetAudioChannels.HasValue)
{
if (targetAudioChannels.Value >= 5 && (maxTotalBitrate ?? 0) >= 2000000)
{
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 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);
}
}
return playMethods;
}
/// <summary>
/// Adds the video stream.
/// </summary>
/// <param name="streams">The streams.</param>
/// <param name="videoStream">The video stream.</param>
private void AddVideoStream(List<MediaStream> streams, TSVideoStream videoStream)
{
var mediaStream = new MediaStream
{
BitRate = Convert.ToInt32(videoStream.BitRate),
Width = videoStream.Width,
Height = videoStream.Height,
Codec = videoStream.CodecShortName,
ScanType = videoStream.IsInterlaced ? "interlaced" : "progressive",
Type = MediaStreamType.Video,
Index = streams.Count
};
if (videoStream.FrameRateDenominator > 0)
{
float frameRateEnumerator = videoStream.FrameRateEnumerator;
float frameRateDenominator = videoStream.FrameRateDenominator;
mediaStream.AverageFrameRate = mediaStream.RealFrameRate = frameRateEnumerator / frameRateDenominator;
}
streams.Add(mediaStream);
}
private void UpdateFromMediaInfo(MediaSourceInfo video, MediaStream videoStream)
{
if (video.Protocol == MediaProtocol.File)
{
if (videoStream != null)
{
try
{
_logger.Debug("Running MediaInfo against {0}", video.Path);
var result = new MediaInfoLib().GetVideoInfo(video.Path);
videoStream.IsCabac = result.IsCabac ?? videoStream.IsCabac;
videoStream.IsInterlaced = result.IsInterlaced ?? videoStream.IsInterlaced;
videoStream.BitDepth = result.BitDepth ?? videoStream.BitDepth;
videoStream.RefFrames = result.RefFrames;
}
catch (Exception ex)
{
_logger.ErrorException("Error running MediaInfo on {0}", ex, video.Path);
}
}
}
}
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;
}
}
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;
}
/// <summary>
/// Gets the number of audio channels to specify on the command line
/// </summary>
/// <param name="request">The request.</param>
/// <param name="audioStream">The audio stream.</param>
/// <param name="outputAudioCodec">The output audio codec.</param>
/// <returns>System.Nullable{System.Int32}.</returns>
private int? GetNumAudioChannelsParam(EncodingJobOptions request, MediaStream audioStream, string outputAudioCodec)
{
var inputChannels = audioStream == null
? null
: audioStream.Channels;
if (inputChannels <= 0)
{
inputChannels = null;
}
var codec = outputAudioCodec ?? string.Empty;
if (codec.IndexOf("wma", StringComparison.OrdinalIgnoreCase) != -1)
{
// wmav2 currently only supports two channel output
return Math.Min(2, inputChannels ?? 2);
}
if (request.MaxAudioChannels.HasValue)
{
if (inputChannels.HasValue)
{
return Math.Min(request.MaxAudioChannels.Value, inputChannels.Value);
}
var channelLimit = codec.IndexOf("mp3", StringComparison.OrdinalIgnoreCase) != -1
? 2
: 6;
// If we don't have any media info then limit it to 5 to prevent encoding errors due to asking for too many channels
return Math.Min(request.MaxAudioChannels.Value, channelLimit);
}
return request.AudioChannels;
}
/// <summary>
/// Converts ffprobe stream info to our MediaStream class
/// </summary>
/// <param name="streamInfo">The stream info.</param>
/// <param name="formatInfo">The format info.</param>
/// <returns>MediaStream.</returns>
private static MediaStream GetMediaStream(MediaStreamInfo streamInfo, MediaFormatInfo formatInfo)
{
var stream = new MediaStream
{
Codec = streamInfo.codec_name,
Profile = streamInfo.profile,
Level = streamInfo.level,
Index = streamInfo.index
};
if (streamInfo.tags != null)
{
stream.Language = GetDictionaryValue(streamInfo.tags, "language");
}
if (string.Equals(streamInfo.codec_type, "audio", StringComparison.OrdinalIgnoreCase))
{
stream.Type = MediaStreamType.Audio;
stream.Channels = streamInfo.channels;
if (!string.IsNullOrEmpty(streamInfo.sample_rate))
{
stream.SampleRate = int.Parse(streamInfo.sample_rate, UsCulture);
}
stream.ChannelLayout = ParseChannelLayout(streamInfo.channel_layout);
}
else if (string.Equals(streamInfo.codec_type, "subtitle", StringComparison.OrdinalIgnoreCase))
{
stream.Type = MediaStreamType.Subtitle;
}
else if (string.Equals(streamInfo.codec_type, "video", StringComparison.OrdinalIgnoreCase))
{
stream.Type = MediaStreamType.Video;
stream.Width = streamInfo.width;
stream.Height = streamInfo.height;
stream.AspectRatio = GetAspectRatio(streamInfo);
stream.AverageFrameRate = GetFrameRate(streamInfo.avg_frame_rate);
stream.RealFrameRate = GetFrameRate(streamInfo.r_frame_rate);
}
else
{
return null;
}
// Get stream bitrate
if (stream.Type != MediaStreamType.Subtitle)
{
var bitrate = 0;
if (!string.IsNullOrEmpty(streamInfo.bit_rate))
{
bitrate = int.Parse(streamInfo.bit_rate, UsCulture);
}
else if (formatInfo != null && !string.IsNullOrEmpty(formatInfo.bit_rate))
{
// If the stream info doesn't have a bitrate get the value from the media format info
bitrate = int.Parse(formatInfo.bit_rate, UsCulture);
}
if (bitrate > 0)
{
stream.BitRate = bitrate;
}
}
if (streamInfo.disposition != null)
{
var isDefault = GetDictionaryValue(streamInfo.disposition, "default");
var isForced = GetDictionaryValue(streamInfo.disposition, "forced");
stream.IsDefault = string.Equals(isDefault, "1", StringComparison.OrdinalIgnoreCase);
stream.IsForced = string.Equals(isForced, "1", StringComparison.OrdinalIgnoreCase);
}
return stream;
}
internal static bool CanStreamCopyVideo(EncodingJobOptions request, MediaStream videoStream)
{
if (videoStream.IsInterlaced)
{
return false;
}
if (videoStream.IsAnamorphic ?? false)
{
return false;
}
// Can't stream copy if we're burning in subtitles
if (request.SubtitleStreamIndex.HasValue)
{
if (request.SubtitleMethod == SubtitleDeliveryMethod.Encode)
{
return false;
}
}
// Source and target codecs must match
if (!string.Equals(request.VideoCodec, videoStream.Codec, StringComparison.OrdinalIgnoreCase))
{
return false;
}
// If client is requesting a specific video profile, it must match the source
if (!string.IsNullOrEmpty(request.Profile))
{
if (string.IsNullOrEmpty(videoStream.Profile))
{
return false;
}
if (!string.Equals(request.Profile, videoStream.Profile, StringComparison.OrdinalIgnoreCase))
{
var currentScore = GetVideoProfileScore(videoStream.Profile);
var requestedScore = GetVideoProfileScore(request.Profile);
if (currentScore == -1 || currentScore > requestedScore)
{
return false;
}
}
}
// Video width must fall within requested value
if (request.MaxWidth.HasValue)
{
if (!videoStream.Width.HasValue || videoStream.Width.Value > request.MaxWidth.Value)
{
return false;
}
}
// Video height must fall within requested value
if (request.MaxHeight.HasValue)
{
if (!videoStream.Height.HasValue || videoStream.Height.Value > request.MaxHeight.Value)
{
return false;
}
}
// Video framerate must fall within requested value
var requestedFramerate = request.MaxFramerate ?? request.Framerate;
if (requestedFramerate.HasValue)
{
var videoFrameRate = videoStream.AverageFrameRate ?? videoStream.RealFrameRate;
if (!videoFrameRate.HasValue || videoFrameRate.Value > requestedFramerate.Value)
{
return false;
}
}
// Video bitrate must fall within requested value
if (request.VideoBitRate.HasValue)
{
if (!videoStream.BitRate.HasValue || videoStream.BitRate.Value > request.VideoBitRate.Value)
{
return false;
}
}
if (request.MaxVideoBitDepth.HasValue)
{
if (videoStream.BitDepth.HasValue && videoStream.BitDepth.Value > request.MaxVideoBitDepth.Value)
{
return false;
}
}
if (request.MaxRefFrames.HasValue)
{
if (videoStream.RefFrames.HasValue && videoStream.RefFrames.Value > request.MaxRefFrames.Value)
{
return false;
}
}
// If a specific level was requested, the source must match or be less than
if (request.Level.HasValue)
{
if (!videoStream.Level.HasValue)
{
return false;
}
if (videoStream.Level.Value > request.Level.Value)
{
return false;
}
}
if (request.Cabac.HasValue && request.Cabac.Value)
{
if (videoStream.IsCabac.HasValue && !videoStream.IsCabac.Value)
{
return false;
}
}
return request.EnableAutoStreamCopy;
}
public ResponseProfile GetVideoMediaProfile(string container, string audioCodec, string videoCodec, MediaStream audioStream, MediaStream videoStream)
{
container = (container ?? string.Empty).TrimStart('.');
return ResponseProfiles.FirstOrDefault(i =>
{
if (i.Type != DlnaProfileType.Video)
{
return false;
}
var containers = i.GetContainers().ToList();
if (containers.Count > 0 && !containers.Contains(container))
{
return false;
}
var audioCodecs = i.GetAudioCodecs().ToList();
if (audioCodecs.Count > 0 && !audioCodecs.Contains(audioCodec ?? string.Empty))
{
return false;
}
var videoCodecs = i.GetVideoCodecs().ToList();
if (videoCodecs.Count > 0 && !videoCodecs.Contains(videoCodec ?? string.Empty))
{
return false;
}
return true;
});
}
private int? GetVideoBitrateParamValue(VideoStreamRequest request, MediaStream videoStream)
{
var bitrate = request.VideoBitRate;
if (videoStream != null)
{
var isUpscaling = request.Height.HasValue && videoStream.Height.HasValue &&
request.Height.Value > videoStream.Height.Value;
if (request.Width.HasValue && videoStream.Width.HasValue &&
request.Width.Value > videoStream.Width.Value)
{
isUpscaling = true;
}
// Don't allow bitrate increases unless upscaling
if (!isUpscaling)
{
if (bitrate.HasValue && videoStream.BitRate.HasValue)
{
bitrate = Math.Min(bitrate.Value, videoStream.BitRate.Value);
}
}
}
return bitrate;
}
/// <summary>
/// Gets the chapter.
/// </summary>
/// <param name="reader">The reader.</param>
/// <returns>ChapterInfo.</returns>
private MediaStream GetMediaStream(IDataReader reader)
{
var item = new MediaStream
{
Index = reader.GetInt32(1)
};
item.Type = (MediaStreamType)Enum.Parse(typeof(MediaStreamType), reader.GetString(2), true);
if (!reader.IsDBNull(3))
{
item.Codec = reader.GetString(3);
}
if (!reader.IsDBNull(4))
{
item.Language = reader.GetString(4);
}
if (!reader.IsDBNull(5))
{
item.ChannelLayout = reader.GetString(5);
}
if (!reader.IsDBNull(6))
{
item.Profile = reader.GetString(6);
}
if (!reader.IsDBNull(7))
{
item.AspectRatio = reader.GetString(7);
}
if (!reader.IsDBNull(8))
{
item.Path = reader.GetString(8);
}
item.IsInterlaced = reader.GetBoolean(9);
if (!reader.IsDBNull(10))
{
item.BitRate = reader.GetInt32(10);
}
if (!reader.IsDBNull(11))
{
item.Channels = reader.GetInt32(11);
}
if (!reader.IsDBNull(12))
{
item.SampleRate = reader.GetInt32(12);
}
item.IsDefault = reader.GetBoolean(13);
item.IsForced = reader.GetBoolean(14);
item.IsExternal = reader.GetBoolean(15);
if (!reader.IsDBNull(16))
{
item.Width = reader.GetInt32(16);
}
if (!reader.IsDBNull(17))
{
item.Height = reader.GetInt32(17);
}
if (!reader.IsDBNull(18))
{
item.AverageFrameRate = reader.GetFloat(18);
}
if (!reader.IsDBNull(19))
{
item.RealFrameRate = reader.GetFloat(19);
}
if (!reader.IsDBNull(20))
{
item.Level = reader.GetFloat(20);
}
if (!reader.IsDBNull(21))
{
item.PixelFormat = reader.GetString(21);
}
if (!reader.IsDBNull(22))
{
item.BitDepth = reader.GetInt32(22);
}
if (!reader.IsDBNull(23))
{
item.IsAnamorphic = reader.GetBoolean(23);
}
if (!reader.IsDBNull(24))
{
item.RefFrames = reader.GetInt32(24);
}
if (!reader.IsDBNull(25))
{
item.IsCabac = reader.GetBoolean(25);
}
if (!reader.IsDBNull(26))
{
var frames = reader.GetString(26);
if (!string.IsNullOrWhiteSpace(frames))
{
item.KeyFrames = frames.Split(',').Select(i => int.Parse(i, CultureInfo.InvariantCulture)).ToList();
}
}
return item;
}
private bool CanStreamCopyVideo(VideoStreamRequest request, MediaStream videoStream)
{
if (videoStream.IsInterlaced)
{
return false;
}
// Can't stream copy if we're burning in subtitles
if (request.SubtitleStreamIndex.HasValue)
{
if (request.SubtitleMethod == SubtitleDeliveryMethod.Encode)
{
return false;
}
}
// Source and target codecs must match
if (!string.Equals(request.VideoCodec, videoStream.Codec, StringComparison.OrdinalIgnoreCase))
{
return false;
}
// If client is requesting a specific video profile, it must match the source
if (!string.IsNullOrEmpty(request.Profile) && !string.Equals(request.Profile, videoStream.Profile, StringComparison.OrdinalIgnoreCase))
{
return false;
}
// Video width must fall within requested value
if (request.MaxWidth.HasValue)
{
if (!videoStream.Width.HasValue || videoStream.Width.Value > request.MaxWidth.Value)
{
return false;
}
}
// Video height must fall within requested value
if (request.MaxHeight.HasValue)
{
if (!videoStream.Height.HasValue || videoStream.Height.Value > request.MaxHeight.Value)
{
return false;
}
}
// Video framerate must fall within requested value
var requestedFramerate = request.MaxFramerate ?? request.Framerate;
if (requestedFramerate.HasValue)
{
var videoFrameRate = videoStream.AverageFrameRate ?? videoStream.RealFrameRate;
if (!videoFrameRate.HasValue || videoFrameRate.Value > requestedFramerate.Value)
{
return false;
}
}
// Video bitrate must fall within requested value
if (request.VideoBitRate.HasValue)
{
if (!videoStream.BitRate.HasValue || videoStream.BitRate.Value > request.VideoBitRate.Value)
{
return false;
}
}
// If a specific level was requested, the source must match or be less than
if (!string.IsNullOrEmpty(request.Level))
{
double requestLevel;
if (double.TryParse(request.Level, NumberStyles.Any, UsCulture, out requestLevel))
{
if (!videoStream.Level.HasValue)
{
return false;
}
if (videoStream.Level.Value > requestLevel)
{
return false;
}
}
}
return request.EnableAutoStreamCopy;
}
/// <summary>
/// Gets the chapter.
/// </summary>
/// <param name="reader">The reader.</param>
/// <returns>ChapterInfo.</returns>
private MediaStream GetMediaStream(IDataReader reader)
{
var item = new MediaStream
{
Index = reader.GetInt32(1)
};
item.Type = (MediaStreamType)Enum.Parse(typeof(MediaStreamType), reader.GetString(2), true);
if (!reader.IsDBNull(3))
{
item.Codec = reader.GetString(3);
}
if (!reader.IsDBNull(4))
{
item.Language = reader.GetString(4);
}
if (!reader.IsDBNull(5))
{
item.ChannelLayout = reader.GetString(5);
}
if (!reader.IsDBNull(6))
{
item.Profile = reader.GetString(6);
}
if (!reader.IsDBNull(7))
{
item.AspectRatio = reader.GetString(7);
}
if (!reader.IsDBNull(8))
{
item.Path = reader.GetString(8);
}
item.IsInterlaced = reader.GetBoolean(9);
if (!reader.IsDBNull(10))
{
item.BitRate = reader.GetInt32(10);
}
if (!reader.IsDBNull(11))
{
item.Channels = reader.GetInt32(11);
}
if (!reader.IsDBNull(12))
{
item.SampleRate = reader.GetInt32(12);
}
item.IsDefault = reader.GetBoolean(13);
item.IsForced = reader.GetBoolean(14);
item.IsExternal = reader.GetBoolean(15);
if (!reader.IsDBNull(16))
{
item.Width = reader.GetInt32(16);
}
if (!reader.IsDBNull(17))
{
item.Height = reader.GetInt32(17);
}
if (!reader.IsDBNull(18))
{
item.AverageFrameRate = reader.GetFloat(18);
}
if (!reader.IsDBNull(19))
{
item.RealFrameRate = reader.GetFloat(19);
}
if (!reader.IsDBNull(20))
{
item.Level = reader.GetFloat(20);
}
if (!reader.IsDBNull(21))
{
item.PixelFormat = reader.GetString(21);
}
if (!reader.IsDBNull(22))
{
item.BitDepth = reader.GetInt32(22);
}
if (!reader.IsDBNull(23))
{
item.IsAnamorphic = reader.GetBoolean(23);
}
return item;
}
/// <summary>
/// Gets the number of audio channels to specify on the command line
/// </summary>
/// <param name="request">The request.</param>
/// <param name="audioStream">The audio stream.</param>
/// <param name="outputAudioCodec">The output audio codec.</param>
/// <returns>System.Nullable{System.Int32}.</returns>
private int? GetNumAudioChannelsParam(StreamRequest request, MediaStream audioStream, string outputAudioCodec)
{
if (audioStream != null)
{
var codec = outputAudioCodec ?? string.Empty;
if (audioStream.Channels > 2 && codec.IndexOf("wma", StringComparison.OrdinalIgnoreCase) != -1)
{
// wmav2 currently only supports two channel output
return 2;
}
}
if (request.MaxAudioChannels.HasValue)
{
if (audioStream != null && audioStream.Channels.HasValue)
{
return Math.Min(request.MaxAudioChannels.Value, audioStream.Channels.Value);
}
return request.MaxAudioChannels.Value;
}
return request.AudioChannels;
}
protected override bool CanStreamCopyAudio(VideoStreamRequest request, MediaStream audioStream, List<string> supportedAudioCodecs)
{
return false;
}
protected override bool CanStreamCopyVideo(VideoStreamRequest request, MediaStream videoStream)
{
if (videoStream.KeyFrames == null || videoStream.KeyFrames.Count == 0)
{
Logger.Debug("Cannot stream copy video due to missing keyframe info");
return false;
}
var previousSegment = 0;
foreach (var frame in videoStream.KeyFrames)
{
var length = frame - previousSegment;
// Don't allow really long segments because this could result in long download times
if (length > 10000)
{
Logger.Debug("Cannot stream copy video due to long segment length of {0}ms", length);
return false;
}
previousSegment = frame;
}
return base.CanStreamCopyVideo(request, videoStream);
}
/// <summary>
/// Adds the audio stream.
/// </summary>
/// <param name="streams">The streams.</param>
/// <param name="audioStream">The audio stream.</param>
private void AddAudioStream(List<MediaStream> streams, TSAudioStream audioStream)
{
var stream = new MediaStream
{
Codec = audioStream.CodecShortName,
Language = audioStream.LanguageCode,
Channels = audioStream.ChannelCount,
SampleRate = audioStream.SampleRate,
Type = MediaStreamType.Audio,
Index = streams.Count
};
var bitrate = Convert.ToInt32(audioStream.BitRate);
if (bitrate > 0)
{
stream.BitRate = bitrate;
}
if (audioStream.LFE > 0)
{
stream.Channels = audioStream.ChannelCount + 1;
}
streams.Add(stream);
}