public MatroskaFileMetaSeek(ulong referencePosition)
{
this.referencePosition = referencePosition;
myPosition = referencePosition;
seekHeadElem = MatroskaDocTypes.SeekHead.GetInstance();
placeHolderElement = new VoidElement(BLOCK_RESEVER_SIZE - seekHeadElem.TotalSize);
}
public Element ToBlockGroup()
{
MasterElement blockGroupElement = MatroskaDocTypes.BlockGroup.GetInstance();
BinaryElement blockElement = MatroskaDocTypes.Block.GetInstance();
blockElement.Data = createInnerData();
UnsignedIntegerElement durationElement = MatroskaDocTypes.BlockDuration.GetInstance();
durationElement.Value = Duration;
blockGroupElement.AddChildElement(blockElement);
blockGroupElement.AddChildElement(durationElement);
return(blockGroupElement);
}
public void AddCue(ulong positionInFile, ulong timecodeOfCluster, List <int> clusterTrackNumber)
{
Utility.LogDebug($"Adding matoska cue to cues element at postion [{positionInFile}], using timecode [{timecodeOfCluster}], for track numbers [{clusterTrackNumber}]");
UnsignedIntegerElement cueTime = MatroskaDocTypes.CueTime.GetInstance();
cueTime.Value = timecodeOfCluster;
MasterElement cuePoint = MatroskaDocTypes.CuePoint.GetInstance();
MasterElement cueTrackPosition = createCueTrackPositions(positionInFile, clusterTrackNumber);
cues.AddChildElement(cuePoint);
cuePoint.AddChildElement(cueTime);
cuePoint.AddChildElement(cueTrackPosition);
Utility.LogDebug("Finished adding matroska cue to cues element.");
}
public ulong WriteTracks(FileStream writer)
{
MasterElement trackElements = MatroskaDocTypes.Tracks.GetInstance();
foreach (var track in tracks)
{
trackElements.AddChildElement(track.ToElement());
}
trackElements.WriteElement(writer);
if (BLOCK_SIZE < trackElements.TotalSize)
{
throw new Exception("BLOCK_SIZE was greater than the track element. Something went wrong.");
}
new VoidElement(BLOCK_SIZE - trackElements.TotalSize).WriteElement(writer);
return(BLOCK_SIZE);
}
private MasterElement createCueTrackPositions(ulong positionInFile, List <int> trackNumbers)
{
MasterElement cueTrackPosition = MatroskaDocTypes.CueTrackPositions.GetInstance();
foreach (int trackNumber in trackNumbers)
{
UnsignedIntegerElement cueTrack = MatroskaDocTypes.CueTrack.GetInstance();
cueTrack.Value = (ulong)trackNumber;
UnsignedIntegerElement cueClusterPosition = MatroskaDocTypes.CueClusterPosition.GetInstance();
cueClusterPosition.Value = getPositionRelativeToSegmentEbmlElement(positionInFile);
cueTrackPosition.AddChildElement(cueTrack);
cueTrackPosition.AddChildElement(cueClusterPosition);
}
return(cueTrackPosition);
}
/// <summary>
/// Adds elements to the seek index. These should be level 1 objects only.
/// If this object has already been written, you must use the update() method
/// </summary>
/// <param name="stream"></param>
/// <param name="filePosition"></param>
public void AddIndexedElement(MemoryStream stream, ulong filePosition)
{
Utility.LogDebug($"Adding indexed element @ {filePosition - referencePosition}");
MasterElement seekEntryElement = MatroskaDocTypes.Seek.GetInstance();
BinaryElement seekEntryIdElement = MatroskaDocTypes.SeekID.GetInstance();
seekEntryIdElement.Data = stream;
UnsignedIntegerElement seekEntryPositionElement = MatroskaDocTypes.SeekPosition.GetInstance();
seekEntryPositionElement.Value = filePosition - referencePosition;
seekEntryElement.AddChildElement(seekEntryIdElement);
seekEntryElement.AddChildElement(seekEntryPositionElement);
seekHeadElem.AddChildElement(seekEntryElement);
placeHolderElement.Size = BLOCK_RESEVER_SIZE - seekHeadElem.TotalSize;
}
private void writeEBMLHeader()
{
MasterElement ebmlHeaderElement = MatroskaDocTypes.EBML.GetInstance();
UnsignedIntegerElement ebmlVersionElement = MatroskaDocTypes.EBMLVersion.GetInstance();
ebmlVersionElement.Value = 1;
UnsignedIntegerElement ebmlReadVersionElement = MatroskaDocTypes.EBMLReadVersion.GetInstance();
ebmlReadVersionElement.Value = 1;
UnsignedIntegerElement ebmlMaxIdLengthElement = MatroskaDocTypes.EBMLMaxIDLength.GetInstance();
ebmlMaxIdLengthElement.Value = 4;
UnsignedIntegerElement ebmlMaxSizeLengthElement = MatroskaDocTypes.EBMLMaxSizeLength.GetInstance();
ebmlMaxSizeLengthElement.Value = 8;
StringElement docTypeElement = MatroskaDocTypes.DocType.GetInstance();
docTypeElement.Value = "matroska";
UnsignedIntegerElement docTypeVersionElement = MatroskaDocTypes.DocTypeVersion.GetInstance();
docTypeVersionElement.Value = 3;
UnsignedIntegerElement docTypeReadVersionElement = MatroskaDocTypes.DocTypeReadVersion.GetInstance();
docTypeReadVersionElement.Value = 2;
ebmlHeaderElement.AddChildElement(ebmlVersionElement);
ebmlHeaderElement.AddChildElement(ebmlReadVersionElement);
ebmlHeaderElement.AddChildElement(ebmlMaxIdLengthElement);
ebmlHeaderElement.AddChildElement(ebmlMaxSizeLengthElement);
ebmlHeaderElement.AddChildElement(docTypeElement);
ebmlHeaderElement.AddChildElement(docTypeVersionElement);
ebmlHeaderElement.AddChildElement(docTypeReadVersionElement);
ebmlHeaderElement.WriteElement(Writer);
}
public long WriteElement(FileStream writer)
{
MasterElement segmentInfoElement = MatroskaDocTypes.Info.GetInstance();
StringElement writingAppElement = MatroskaDocTypes.WritingApp.GetInstance();
writingAppElement.Value = "Matroska File Writer v1.0 C#";
StringElement muxingAppElement = MatroskaDocTypes.MuxingApp.GetInstance();
muxingAppElement.Value = ".NET EBML v1.0";
DateElement dateElement = MatroskaDocTypes.DateUTC.GetInstance();
dateElement.Date = SegmentDate;
UnsignedIntegerElement timecodeScaleElement = MatroskaDocTypes.TimecodeScale.GetInstance();
timecodeScaleElement.Value = TimecodeScale;
segmentInfoElement.AddChildElement(dateElement);
segmentInfoElement.AddChildElement(timecodeScaleElement);
if (Duration != null)
{
FloatElement durationElement = MatroskaDocTypes.Duration.GetInstance();
durationElement.Value = (double)Duration;
segmentInfoElement.AddChildElement(durationElement);
}
segmentInfoElement.AddChildElement(writingAppElement);
segmentInfoElement.AddChildElement(muxingAppElement);
ulong len = segmentInfoElement.WriteElement(writer);
VoidElement spacer = new VoidElement((ulong)BLOCK_SIZE - len);
spacer.WriteElement(writer);
return(1);
}
public ulong Flush(FileStream writer)
{
if (frames.Count == 0)
{
return(0);
}
try
{
MasterElement clusterElement = MatroskaDocTypes.Cluster.GetInstance();
UnsignedIntegerElement timecodeElement = MatroskaDocTypes.Timecode.GetInstance();
timecodeElement.Value = ClusterTimecode;
clusterElement.AddChildElement(timecodeElement);
if (silencedTracks.Count != 0)
{
MasterElement silentElement = MatroskaDocTypes.SilentTracks.GetInstance();
foreach (ulong silent in silencedTracks)
{
UnsignedIntegerElement silentTrackElement = MatroskaDocTypes.SilentTrackNumber.GetInstance();
silentTrackElement.Value = silent;
silentElement.AddChildElement(silentTrackElement);
}
clusterElement.AddChildElement(silentElement);
}
MatroskaSimpleBlock block = null;
bool forceNew = true;
ulong lastTimecode = 0;
int lastTrackNumber = 0;
foreach (var frame in frames)
{
frame.Timecode -= ClusterTimecode;
if (forceNew || lastTimecode != frame.Timecode || lastTrackNumber != frame.TrackNumber)
{
if (block != null)
{
clusterElement.AddChildElement(block.ToElement());
}
block = new MatroskaSimpleBlock();
}
lastTimecode = frame.Timecode;
lastTrackNumber = frame.TrackNumber;
forceNew = true;
block.AddFrame(frame);
}
if (block != null)
{
clusterElement.AddChildElement(block.ToElement());
}
return(clusterElement.WriteElement(writer));
}
finally
{
frames.Clear();
Tracks.Clear();
totalSize = 0;
ClusterTimecode = ulong.MaxValue;
}
}
public MatroskaFileCues(ulong endOfHeaderBytePosition)
{
this.endOfEbmlHeaderBytePosition = endOfHeaderBytePosition;
cues = MatroskaDocTypes.Cues.GetInstance();
}
/// <summary>
/// Adds elements to the seek index. These should be level 1 objects only.
/// If this object has already been written, you must use the update() method
/// for changes to take effect.
/// </summary>
/// <param name="element">The element itself.</param>
/// <param name="filePostition">Position in teh data stream where the element has been written.</param>
public void AddIndexedElement(MasterElement element, ulong filePostition)
{
Utility.LogDebug($"Adding indexed element {element.TypeInfo.Name} @ {filePostition - referencePosition}");
AddIndexedElement(element.Type, filePostition);
}
public void AddElementToMasterElementList(MasterElement masterElement)
{
masterElementList.Add(masterElement);
}
public Element ToElement()
{
MasterElement trackEntryElement = MatroskaDocTypes.TrackEntry.GetInstance();
UnsignedIntegerElement trackNumberElement = MatroskaDocTypes.TrackNumber.GetInstance();
trackNumberElement.Value = (ulong)TrackNumber;
UnsignedIntegerElement trackUIDElement = MatroskaDocTypes.TrackType.GetInstance();
trackUIDElement.Value = TrackUID;
UnsignedIntegerElement trackTypeElement = MatroskaDocTypes.TrackType.GetInstance();
trackTypeElement.Value = (ulong)TrackType;
Utility.LogTrace($"Track type set to {TrackType.ToString()}");
UnsignedIntegerElement trackFlagEnabledElement = MatroskaDocTypes.FlagEnabled.GetInstance();
trackFlagEnabledElement.Value = (ulong)(FlagEnabled ? 1 : 0);
UnsignedIntegerElement trackFlagDefaultElement = MatroskaDocTypes.FlagDefault.GetInstance();
trackFlagDefaultElement.Value = (ulong)(FlagDefault ? 1 : 0);
UnsignedIntegerElement trackFlagForcedElement = MatroskaDocTypes.FlagForced.GetInstance();
trackFlagForcedElement.Value = (ulong)(FlagForced ? 1 : 0);
UnsignedIntegerElement trackFlagLacingElement = MatroskaDocTypes.FlagLacing.GetInstance();
trackFlagLacingElement.Value = (ulong)(FlagLacing ? 1 : 0);
UnsignedIntegerElement trackMinCacheElement = MatroskaDocTypes.MinCache.GetInstance();
trackMinCacheElement.Value = (ulong)MinCache;
UnsignedIntegerElement trackMaxBlockAddIdElement = MatroskaDocTypes.MaxBlockAdditionID.GetInstance();
trackMaxBlockAddIdElement.Value = (ulong)MaxBlockAdditionalId;
StringElement trackNameElement = MatroskaDocTypes.Name.GetInstance();
trackNameElement.Value = Name;
StringElement trackLangElement = MatroskaDocTypes.Language.GetInstance();
trackLangElement.Value = Language;
StringElement trackCodecIdElement = MatroskaDocTypes.CodecID.GetInstance();
trackCodecIdElement.Value = CodecId;
trackEntryElement.AddChildElement(trackNumberElement);
trackEntryElement.AddChildElement(trackUIDElement);
trackEntryElement.AddChildElement(trackTypeElement);
trackEntryElement.AddChildElement(trackFlagEnabledElement);
trackEntryElement.AddChildElement(trackFlagDefaultElement);
trackEntryElement.AddChildElement(trackFlagForcedElement);
trackEntryElement.AddChildElement(trackFlagLacingElement);
trackEntryElement.AddChildElement(trackMinCacheElement);
trackEntryElement.AddChildElement(trackMaxBlockAddIdElement);
trackEntryElement.AddChildElement(trackNameElement);
trackEntryElement.AddChildElement(trackLangElement);
trackEntryElement.AddChildElement(trackCodecIdElement);
if (CodecPrivate != null && CodecPrivate.Length != CodecPrivate.Position)
{
BinaryElement trackCodecPrivateElement = MatroskaDocTypes.CodecPrivate.GetInstance();
trackCodecPrivateElement.Data = CodecPrivate;
trackEntryElement.AddChildElement(trackCodecPrivateElement);
}
UnsignedIntegerElement trackDefaultDurationElement = MatroskaDocTypes.DefaultDuration.GetInstance();
trackDefaultDurationElement.Value = DefaultDuration;
UnsignedIntegerElement trackCodecDecodeAllElement = MatroskaDocTypes.CodecDecodeAll.GetInstance();
trackCodecDecodeAllElement.Value = (ulong)(CodecDecodeAll ? 0 : 1);
trackEntryElement.AddChildElement(trackDefaultDurationElement);
trackEntryElement.AddChildElement(trackCodecDecodeAllElement);
if (overlayUIDs.Count != 0)
{
foreach (ulong overlay in overlayUIDs)
{
UnsignedIntegerElement trackOverlayElement = MatroskaDocTypes.TrackOverlay.GetInstance();
trackOverlayElement.Value = overlay;
trackEntryElement.AddChildElement(trackOverlayElement);
}
}
// Now we add the audio/video dependant sub-elements
if (this.TrackType == TrackType.Video)
{
MasterElement trackVideoElement = MatroskaDocTypes.Video.GetInstance();
UnsignedIntegerElement trackVideoPixelWidthElement = MatroskaDocTypes.PixelWidth.GetInstance();
trackVideoPixelWidthElement.Value = (ulong)this.video.PixelWidth;
UnsignedIntegerElement trackVideoPixelHeightElement = MatroskaDocTypes.PixelHeight.GetInstance();
trackVideoPixelHeightElement.Value = (ulong)this.video.PixelHeight;
UnsignedIntegerElement trackVideoDisplayWidthElement = MatroskaDocTypes.DisplayWidth.GetInstance();
trackVideoDisplayWidthElement.Value = (ulong)this.video.DisplayWidth;
UnsignedIntegerElement trackVideoDisplayHeightElement = MatroskaDocTypes.DisplayHeight.GetInstance();
trackVideoDisplayHeightElement.Value = (ulong)this.video.DisplayHeight;
trackVideoElement.AddChildElement(trackVideoPixelWidthElement);
trackVideoElement.AddChildElement(trackVideoPixelHeightElement);
trackVideoElement.AddChildElement(trackVideoDisplayWidthElement);
trackVideoElement.AddChildElement(trackVideoDisplayHeightElement);
trackEntryElement.AddChildElement(trackVideoElement);
}
else if (this.TrackType == TrackType.Audio)
{
MasterElement trackAudioElement = MatroskaDocTypes.Audio.GetInstance();
UnsignedIntegerElement trackAudioChannelsElement = MatroskaDocTypes.Channels.GetInstance();
trackAudioChannelsElement.Value = (ulong)this.audio.Channels;
UnsignedIntegerElement trackAudioBitDepthElement = MatroskaDocTypes.BitDepth.GetInstance();
trackAudioBitDepthElement.Value = this.audio.BitDepth;
FloatElement trackAudioSamplingRateElement = MatroskaDocTypes.SamplingFrequency.GetInstance();
trackAudioSamplingRateElement.Value = this.audio.SamplingFrequency;
FloatElement trackAudioOutputSamplingFrequencyElement = MatroskaDocTypes.OutputSamplingFrequency.GetInstance();
trackAudioOutputSamplingFrequencyElement.Value = this.audio.OutputSamplingFrequency;
trackAudioElement.AddChildElement(trackAudioChannelsElement);
trackAudioElement.AddChildElement(trackAudioBitDepthElement);
trackAudioElement.AddChildElement(trackAudioSamplingRateElement);
trackAudioElement.AddChildElement(trackAudioOutputSamplingFrequencyElement);
trackEntryElement.AddChildElement(trackAudioElement);
}
if (joinUIDs != null)
{
MasterElement trackOpElement = MatroskaDocTypes.TrackOperation.GetInstance();
MasterElement trackJoinElement = MatroskaDocTypes.TrackJoinBlocks.GetInstance();
foreach (ulong uid in joinUIDs)
{
UnsignedIntegerElement joinUidElement = MatroskaDocTypes.TrackJoinUID.GetInstance();
joinUidElement.Value = uid;
trackJoinElement.AddChildElement(joinUidElement);
}
trackOpElement.AddChildElement(trackJoinElement);
trackEntryElement.AddChildElement(trackOpElement);
}
return(trackEntryElement);
}
public EbmlDocument(EbmlHead head, MasterElement body)
{
Head = head;
Body = body;
}
