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namespace TagLib.Mpeg4
{
public class IsoSampleEntry : Box
{
//////////////////////////////////////////////////////////////////////////
// private properties
//////////////////////////////////////////////////////////////////////////
private ushort data_reference_index;
//////////////////////////////////////////////////////////////////////////
// public methods
//////////////////////////////////////////////////////////////////////////
public IsoSampleEntry (BoxHeader header, Box parent) : base (header, parent)
{
File.Seek (base.DataPosition + 6);
data_reference_index = (ushort) File.ReadBlock (2).ToShort ();
}
//////////////////////////////////////////////////////////////////////////
// public properties
//////////////////////////////////////////////////////////////////////////
public ushort DataReferenceIndex {get {return data_reference_index;}}
protected override long DataPosition {get {return base.DataPosition + 8;}}
protected override ulong DataSize {get {return base.DataSize - 8;}}
}
// Audio Sequences
public class IsoAudioSampleEntry : IsoSampleEntry
{
//////////////////////////////////////////////////////////////////////////
// private properties
//////////////////////////////////////////////////////////////////////////
private ushort channel_count;
private ushort sample_size;
private uint sample_rate;
//////////////////////////////////////////////////////////////////////////
// public methods
//////////////////////////////////////////////////////////////////////////
public IsoAudioSampleEntry (BoxHeader header, Box parent) : base (header, parent)
{
File.Seek (base.DataPosition + 8);
channel_count = (ushort) File.ReadBlock (2).ToShort ();
sample_size = (ushort) File.ReadBlock (2).ToShort ();
File.Seek (base.DataPosition + 16);
sample_rate = (uint) File.ReadBlock (4).ToUInt ();
}
//////////////////////////////////////////////////////////////////////////
// public properties
//////////////////////////////////////////////////////////////////////////
public ushort ChannelCount {get {return channel_count;}}
public ushort SampleSize {get {return sample_size;}}
public uint SampleRate {get {return sample_rate >> 16;}}
public override bool HasChildren {get {return true;}}
protected override long DataPosition {get {return base.DataPosition + 20;}}
protected override ulong DataSize {get {return base.DataSize - 20;}}
}
}
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