/// <summary>
/// Get the offset when compress mode is 8k
/// </summary>
/// <param name="offsetBitCount">the bits count offset used</param>
/// <param name="actualOffsetBitCount">the bits count offset used without flag</param>
private void GetOffsetFromRemain8K(
OffsetBitSize8k offsetBitCount,
OffsetBitSizeWithoutSymbol8k actualOffsetBitCount)
{
uint adding = 0;
// determin the adding value according to offset flag
if (actualOffsetBitCount == OffsetBitSizeWithoutSymbol8k.Between64And320)
{
adding = (uint)OffsetAdding8k.Between64And320;
}
else if (actualOffsetBitCount == OffsetBitSizeWithoutSymbol8k.Between320And8191)
{
adding = (uint)OffsetAdding8k.Between320And8191;
}
else
{
//adding = 0;
}
//get offset from high bits part of remain.
//this bits are pushed to remain earlier than others
offset = ((remain >> (remainBitsCount - (int)offsetBitCount)) & (uint)((1 << (int)actualOffsetBitCount) - 1)) + adding;
remainBitsCount -= (int)offsetBitCount;
// elimate the decoded bits
remain = remain & (uint)((1 << remainBitsCount) - 1);
}
/// <summary>
/// Get the offset when compress mode is 8k
/// </summary>
/// <param name="offsetBitCount">the bits count offset used</param>
/// <param name="actualOffsetBitCount">the bits count offset used without flag</param>
private void GetOffsetFromRemain8K(
OffsetBitSize8k offsetBitCount,
OffsetBitSizeWithoutSymbol8k actualOffsetBitCount)
{
uint adding = 0;
// determin the adding value according to offset flag
if (actualOffsetBitCount == OffsetBitSizeWithoutSymbol8k.Between64And320)
{
adding = (uint)OffsetAdding8k.Between64And320;
}
else if (actualOffsetBitCount == OffsetBitSizeWithoutSymbol8k.Between320And8191)
{
adding = (uint)OffsetAdding8k.Between320And8191;
}
else
{
//adding = 0;
}
//get offset from high bits part of remain.
//this bits are pushed to remain earlier than others
offset = ((remain >> (remainBitsCount - (int)offsetBitCount)) & (uint)((1 << (int)actualOffsetBitCount) - 1)) + adding;
remainBitsCount -= (int)offsetBitCount;
// elimate the decoded bits
remain = remain & (uint)((1 << remainBitsCount) - 1);
}
