/// <summary>
/// Creates a new Box instance that matches the BoxType specified. This will position the
/// reader to the end of the box that was read in.
/// </summary>
/// <param name="stream">The stream that contains the bytes for the box.</param>
/// <returns>Returns the box read from the stream; if there was no box to read it
/// will return null.</returns>
public static Box Create(BoxBinaryReader stream)
{
Box box = null;
var offset = stream.Offset;
var size = stream.ReadBoxSize();
var boxType = stream.ReadBoxType();
switch (boxType)
{
case BoxType.Moov:
box = new MovieBox(offset, size);
break;
case BoxType.Mvhd:
box = new MovieHeaderFullBox(offset, size);
break;
case BoxType.Trak:
box = new TrackBox(offset, size);
break;
case BoxType.Tkhd:
box = new TrackHeaderFullBox(offset, size);
break;
case BoxType.Tref:
box = new TrackReferenceBox(offset, size);
break;
case BoxType.Mdia:
box = new MediaBox(offset, size);
break;
case BoxType.Mdhd:
box = new MediaHeaderFullBox(offset, size);
break;
case BoxType.Hdlr:
box = new HandlerReferenceFullBox(offset, size);
break;
case BoxType.Minf:
box = new MediaInformationBox(offset, size);
break;
case BoxType.Vmhd:
box = new VideoMediaHeaderFullBox(offset, size);
break;
case BoxType.Smhd:
box = new SoundMediaHeaderFullBox(offset, size);
break;
case BoxType.Nmhd:
box = new NullMediaHeaderFullBox(offset, size);
break;
case BoxType.Dinf:
box = new DataInformationBox(offset, size);
break;
case BoxType.Stbl:
box = new SampleTableBox(offset, size);
break;
case BoxType.Stts:
box = new DecodingTimeToSampleFullBox(offset, size);
break;
case BoxType.Stss:
box = new SyncSamplesBox(offset, size);
break;
case BoxType.Ctts:
box = new CompositionTimeToSampleFullBox(offset, size);
break;
case BoxType.Stsd:
box = new SampleDescriptionFullBox(offset, size);
break;
case BoxType.Mp4a:
case BoxType.Wma:
case BoxType.Ac_3:
case BoxType.Ec_3:
case BoxType.Mlpa:
case BoxType.Dtsc:
case BoxType.Dtsh:
case BoxType.Dtsl:
case BoxType.Dtse:
box = new AudioSampleEntryBox(offset, size);
break;
case BoxType.Dec3:
box = new EC3SpecificBox(offset, size);
break;
case BoxType.Dac3:
box = new AC3SpecificBox(offset, size);
break;
case BoxType.Dmlp:
box = new MLPSpecificBox(offset, size);
break;
case BoxType.Ddts:
box = new DTSSpecificBox(offset, size);
break;
case BoxType.Avc1:
case BoxType.Vc_1:
box = new VisualSampleEntryBox(offset, size);
break;
case BoxType.Stpp:
box = new SubtitleSampleEntryBox(offset, size);
break;
case BoxType.Encv:
case BoxType.Enca:
case BoxType.Enct:
case BoxType.Encs:
box = new ProtectedSampleEntryBox(offset, size, boxType);
break;
case BoxType.Esds:
box = new ElementaryStreamDescriptorFullBox(offset, size);
break;
case BoxType.Avcc:
box = new AdvancedVideoCodingBox(offset, size);
break;
case BoxType.Wfex:
box = new WaveFormatExBox(offset, size);
break;
case BoxType.Dvc1:
box = new DigitalVideoCodingBox(offset, size);
break;
case BoxType.Mvex:
box = new MovieExtendsBox(offset, size);
break;
case BoxType.Ftyp:
box = new FileTypeBox(offset, size);
break;
case BoxType.Mdat:
box = new MediaDataBox(offset, size);
break;
case BoxType.Moof:
box = new MovieFragmentBox(offset, size);
break;
case BoxType.Mfra:
box = new MovieFragmentRandomAccessBox(offset, size);
break;
case BoxType.Tfra:
box = new TrackFragmentRandomAccessFullBox(offset, size);
break;
case BoxType.Mfro:
box = new MovieFragmentRandomAccessOffsetFullBox(offset, size);
break;
case BoxType.Mfhd:
box = new MovieFragmentHeaderFullBox(offset, size);
break;
case BoxType.Traf:
box = new TrackFragmentBox(offset, size);
break;
case BoxType.Tfhd:
box = new TrackFragmentHeaderFullBox(offset, size);
break;
case BoxType.Trun:
box = new TrackFragmentRunFullBox(offset, size);
break;
case BoxType.Sdtp:
box = new IndependentAndDisposableSamplesFullBox(offset, size);
break;
case BoxType.Uuid:
box = ExtensionBox.GetNextBoxFromStream(stream, offset, (uint)size);
box.ExtendedType = stream.ReadGuid();
break;
case BoxType.Pdin:
box = new ProgressiveDownloadInfoFullBox(offset, size);
break;
case BoxType.Bloc:
box = new BaseLocationFullBox(offset, size);
break;
case BoxType.Ainf:
box = new AssetInformationFullBox(offset, size);
break;
case BoxType.Xml:
box = new XmlFullBox(offset, size);
break;
case BoxType.Bxml:
box = new BinaryXmlFullBox(offset, size);
break;
case BoxType.Iloc:
box = new ItemLocationFullBox(offset, size);
break;
case BoxType.Idat:
box = new ItemDataBox(offset, size);
break;
case BoxType.Meta:
box = new MetaFullBox(offset, size);
break;
case BoxType.Free:
case BoxType.Skip:
box = new FreeSpaceBox(offset, size);
break;
case BoxType.Trik:
box = new TrickPlayFullBox(offset, size);
break;
case BoxType.Btrt:
box = new BitRateBox(offset, size);
break;
case BoxType.Sthd:
box = new SubtitleMediaHeaderFullBox(offset, size);
break;
case BoxType.Subs:
box = new SubSampleInformationFullBox(offset, size);
break;
case BoxType.Tfdt:
box = new TrackFragmentBaseMediaDecodeTimeFullBox(offset, size);
break;
case BoxType.Saiz:
box = new SampleAuxiliaryInformationSizesFullBox(offset, size);
break;
case BoxType.Saio:
box = new SampleAuxiliaryInformationOffsetsFullBox(offset, size);
break;
case BoxType.Prft:
box = new ProducerReferenceTimeFullBox(offset, size);
break;
case BoxType.Pssh:
box = new ProtectionSystemSpecificHeaderFullBox(offset, size);
break;
case BoxType.Tenc:
box = new TrackEncryptionFullBox(offset, size);
break;
case BoxType.Senc:
box = new SampleEncryptionFullBox(offset, size);
break;
case BoxType.Schi:
box = new SchemeInformationBox(offset, size);
break;
case BoxType.Sinf:
box = new ProtectedSchemeInformationBox(offset, size);
break;
case BoxType.Avcn:
box = new AVCNALBox(offset, size);
break;
case BoxType.Sidx:
box = new SegmentIndexBox(offset, size);
break;
case BoxType.Stsc:
box = new SampleChunkBox(offset, size);
break;
case BoxType.Stsz:
box = new SampleSizeBox(offset, size);
break;
case BoxType.Stco:
box = new SampleChunkOffsetBox(offset, size);
break;
case BoxType.Iods:
box = new InitialObjectDescriptorBox(offset, size);
break;
default:
stream.GotoEndOfBox(offset, size);
break;
}
if (box != null)
{
box.ReadBoxFromStream(stream);
}
return(box);
}
private uint CalculateBitrate(TrackFragmentRandomAccessFullBox tfra)
{
var trackSize = tfra.TrackFragmentRandomAccessEntries.Sum(entry => (long)entry.SampleSize); // Track size in bits
var bitrate = ((double)(trackSize * 8) / (double)this.Duration) * (double)this.TimeScale;
return (uint)bitrate;
}
/// <summary>
/// Initializes a new instance of the <see cref="ManifestTrack"/> class.
/// </summary>
/// <param name="type">The track type.</param>
/// <param name="tkhd">The <see cref="TrackHeaderFullBox"/> with track general information.</param>
/// <param name="tfra">The <see cref="TrackFragmentRandomAccessFullBox"/> with list of fragments corresponding to the track.</param>
/// <param name="stsd">The <see cref="SampleDescriptionFullBox"/> with track codec information.</param>
public ManifestTrack(string type, TrackHeaderFullBox tkhd, MediaHeaderFullBox mdhd, TrackFragmentRandomAccessFullBox tfra, SampleDescriptionFullBox stsd)
{
this.IsSupported = false;
this.Type = (ManifestTrackType)Enum.Parse(typeof(ManifestTrackType), type, true);
this.Id = (int)tkhd.TrackId;
this.Fragments = tfra;
this.Duration = tkhd.Duration;
this.Height = tkhd.Height >> 16;
this.Width = tkhd.Width >> 16;
this.TimeScale = mdhd.Timescale;
this.Language = mdhd.Language;
switch (this.Type)
{
case ManifestTrackType.Video:
BuildVideoTrack(stsd, tfra);
break;
case ManifestTrackType.Audio:
BuildAudioTrack(stsd);
break;
case ManifestTrackType.Text:
BuildSubtitleTrack(stsd);
break;
}
}
private void BuildVideoTrack(SampleDescriptionFullBox stsd, TrackFragmentRandomAccessFullBox tfra)
{
var vide = stsd.InnerBoxes.SingleOrDefault(b => b.Type == BoxType.Vide) as VisualSampleEntryBox;
var encv = stsd.InnerBoxes.SingleOrDefault(b => b.Type == BoxType.Encv) as ProtectedSampleEntryBox;
if (vide == null && encv != null)
{
vide = encv.OriginalSampleEntryData as VisualSampleEntryBox;
}
if (vide != null)
{
if (tfra != null)
{
this.Bitrate = CalculateBitrate(tfra);
}
this.DisplayWidth = vide.VideoCodecData.DisplayWidth;
this.DisplayHeight = vide.VideoCodecData.DisplayHeight;
this.FourCodecCode = vide.VideoCodecData.FourCodecCode;
this.CodecPrivateData = vide.VideoCodecData.CodecPrivateData;
this.IsSupported = true;
}
}
/// <summary>
/// Creates a new Box instance that matches the BoxType specified. This will position the
/// reader to the end of the box that was read in.
/// </summary>
/// <param name="stream">The stream that contains the bytes for the box.</param>
/// <returns>Returns the box read from the stream; if there was no box to read it
/// will return null.</returns>
public static Box Create(BoxBinaryReader stream)
{
Box box = null;
var offset = stream.Offset;
var size = stream.ReadBoxSize();
var boxType = stream.ReadBoxType();
switch (boxType)
{
case BoxType.Moov:
box = new MovieBox(offset, size);
break;
case BoxType.Mvhd:
box = new MovieHeaderFullBox(offset, size);
break;
case BoxType.Trak:
box = new TrackBox(offset, size);
break;
case BoxType.Tkhd:
box = new TrackHeaderFullBox(offset, size);
break;
case BoxType.Tref:
box = new TrackReferenceBox(offset, size);
break;
case BoxType.Mdia:
box = new MediaBox(offset, size);
break;
case BoxType.Mdhd:
box = new MediaHeaderFullBox(offset, size);
break;
case BoxType.Hdlr:
box = new HandlerReferenceFullBox(offset, size);
break;
case BoxType.Minf:
box = new MediaInformationBox(offset, size);
break;
case BoxType.Vmhd:
box = new VideoMediaHeaderFullBox(offset, size);
break;
case BoxType.Smhd:
box = new SoundMediaHeaderFullBox(offset, size);
break;
case BoxType.Nmhd:
box = new NullMediaHeaderFullBox(offset, size);
break;
case BoxType.Dinf:
box = new DataInformationBox(offset, size);
break;
case BoxType.Stbl:
box = new SampleTableBox(offset, size);
break;
case BoxType.Stts:
box = new DecodingTimeToSampleFullBox(offset, size);
break;
case BoxType.Stss:
box = new SyncSamplesBox(offset, size);
break;
case BoxType.Ctts:
box = new CompositionTimeToSampleFullBox(offset, size);
break;
case BoxType.Stsd:
box = new SampleDescriptionFullBox(offset, size);
break;
case BoxType.Mp4a:
case BoxType.Wma:
case BoxType.Ac_3:
case BoxType.Ec_3:
case BoxType.Mlpa:
case BoxType.Dtsc:
case BoxType.Dtsh:
case BoxType.Dtsl:
case BoxType.Dtse:
box = new AudioSampleEntryBox(offset, size);
break;
case BoxType.Dec3:
box = new EC3SpecificBox(offset, size);
break;
case BoxType.Dac3:
box = new AC3SpecificBox(offset, size);
break;
case BoxType.Dmlp:
box = new MLPSpecificBox(offset, size);
break;
case BoxType.Ddts:
box = new DTSSpecificBox(offset, size);
break;
case BoxType.Avc1:
case BoxType.Vc_1:
box = new VisualSampleEntryBox(offset, size);
break;
case BoxType.Stpp:
box = new SubtitleSampleEntryBox(offset, size);
break;
case BoxType.Encv:
case BoxType.Enca:
case BoxType.Enct:
case BoxType.Encs:
box = new ProtectedSampleEntryBox(offset, size, boxType);
break;
case BoxType.Esds:
box = new ElementaryStreamDescriptorFullBox(offset, size);
break;
case BoxType.Avcc:
box = new AdvancedVideoCodingBox(offset, size);
break;
case BoxType.Wfex:
box = new WaveFormatExBox(offset, size);
break;
case BoxType.Dvc1:
box = new DigitalVideoCodingBox(offset, size);
break;
case BoxType.Mvex:
box = new MovieExtendsBox(offset, size);
break;
case BoxType.Ftyp:
box = new FileTypeBox(offset, size);
break;
case BoxType.Mdat:
box = new MediaDataBox(offset, size);
break;
case BoxType.Moof:
box = new MovieFragmentBox(offset, size);
break;
case BoxType.Mfra:
box = new MovieFragmentRandomAccessBox(offset, size);
break;
case BoxType.Tfra:
box = new TrackFragmentRandomAccessFullBox(offset, size);
break;
case BoxType.Mfro:
box = new MovieFragmentRandomAccessOffsetFullBox(offset, size);
break;
case BoxType.Mfhd:
box = new MovieFragmentHeaderFullBox(offset, size);
break;
case BoxType.Traf:
box = new TrackFragmentBox(offset, size);
break;
case BoxType.Tfhd:
box = new TrackFragmentHeaderFullBox(offset, size);
break;
case BoxType.Trun:
box = new TrackFragmentRunFullBox(offset, size);
break;
case BoxType.Sdtp:
box = new IndependentAndDisposableSamplesFullBox(offset, size);
break;
case BoxType.Uuid:
box = ExtensionBox.GetNextBoxFromStream(stream, offset, (uint)size);
box.ExtendedType = stream.ReadGuid();
break;
case BoxType.Pdin:
box = new ProgressiveDownloadInfoFullBox(offset, size);
break;
case BoxType.Bloc:
box = new BaseLocationFullBox(offset, size);
break;
case BoxType.Ainf:
box = new AssetInformationFullBox(offset, size);
break;
case BoxType.Xml:
box = new XmlFullBox(offset, size);
break;
case BoxType.Bxml:
box = new BinaryXmlFullBox(offset, size);
break;
case BoxType.Iloc:
box = new ItemLocationFullBox(offset, size);
break;
case BoxType.Idat:
box = new ItemDataBox(offset, size);
break;
case BoxType.Meta:
box = new MetaFullBox(offset, size);
break;
case BoxType.Free:
case BoxType.Skip:
box = new FreeSpaceBox(offset, size);
break;
case BoxType.Trik:
box = new TrickPlayFullBox(offset, size);
break;
case BoxType.Btrt:
box = new BitRateBox(offset, size);
break;
case BoxType.Sthd:
box = new SubtitleMediaHeaderFullBox(offset, size);
break;
case BoxType.Subs:
box = new SubSampleInformationFullBox(offset, size);
break;
case BoxType.Tfdt:
box = new TrackFragmentBaseMediaDecodeTimeFullBox(offset, size);
break;
case BoxType.Saiz:
box = new SampleAuxiliaryInformationSizesFullBox(offset, size);
break;
case BoxType.Saio:
box = new SampleAuxiliaryInformationOffsetsFullBox(offset, size);
break;
case BoxType.Prft:
box = new ProducerReferenceTimeFullBox(offset, size);
break;
case BoxType.Pssh:
box = new ProtectionSystemSpecificHeaderFullBox(offset, size);
break;
case BoxType.Tenc:
box = new TrackEncryptionFullBox(offset, size);
break;
case BoxType.Senc:
box = new SampleEncryptionFullBox(offset, size);
break;
case BoxType.Schi:
box = new SchemeInformationBox(offset, size);
break;
case BoxType.Sinf:
box = new ProtectedSchemeInformationBox(offset, size);
break;
case BoxType.Avcn:
box = new AVCNALBox(offset, size);
break;
case BoxType.Sidx:
box = new SegmentIndexBox(offset, size);
break;
case BoxType.Stsc:
box = new SampleChunkBox(offset, size);
break;
case BoxType.Stsz:
box = new SampleSizeBox(offset, size);
break;
case BoxType.Stco:
box = new SampleChunkOffsetBox(offset, size);
break;
case BoxType.Iods:
box = new InitialObjectDescriptorBox(offset, size);
break;
default:
stream.GotoEndOfBox(offset, size);
break;
}
if (box != null)
{
box.ReadBoxFromStream(stream);
}
return box;
}