/// <summary>
/// *
/// </summary>
internal override void ReadAllocation(Bitstream stream, Header header, Crc16 crc)
{
Allocation = stream.GetBitsFromBuffer(4);
if (Allocation > 14)
{
return;
}
Channel2Allocation = stream.GetBitsFromBuffer(4);
if (Channel2Allocation > 14)
{
return;
}
if (crc != null)
{
crc.AddBits(Allocation, 4);
crc.AddBits(Channel2Allocation, 4);
}
if (Allocation != 0)
{
Samplelength = Allocation + 1;
Factor = TableFactor[Allocation];
Offset = TableOffset[Allocation];
}
if (Channel2Allocation != 0)
{
Channel2Samplelength = Channel2Allocation + 1;
Channel2Factor = TableFactor[Channel2Allocation];
Channel2Offset = TableOffset[Channel2Allocation];
}
}
/// <summary>
/// *
/// </summary>
internal override void ReadAllocation(Bitstream stream, Header header, Crc16 crc)
{
int length = GetAllocationLength(header);
Allocation = stream.GetBitsFromBuffer(length);
Channel2Allocation = stream.GetBitsFromBuffer(length);
if (crc != null)
{
crc.AddBits(Allocation, length);
crc.AddBits(Channel2Allocation, length);
}
}
/// <summary>
/// *
/// </summary>
internal override void ReadScaleFactorSelection(Bitstream stream, Crc16 crc)
{
if (Allocation != 0)
{
Scfsi = stream.GetBitsFromBuffer(2);
Channel2Scfsi = stream.GetBitsFromBuffer(2);
if (crc != null)
{
crc.AddBits(Scfsi, 2);
crc.AddBits(Channel2Scfsi, 2);
}
}
}
/// <summary>
/// *
/// </summary>
internal override void ReadAllocation(Bitstream stream, Header header, Crc16 crc)
{
if ((Allocation = stream.GetBitsFromBuffer(4)) == 15)
{
}
// cerr << "WARNING: stream contains an illegal allocation!\n";
// MPEG-stream is corrupted!
crc?.AddBits(Allocation, 4);
if (Allocation != 0)
{
Samplelength = Allocation + 1;
Factor = TableFactor[Allocation];
Offset = TableOffset[Allocation];
}
}
