Abstract class: RT.ArithmeticCoding.ArithmeticSymbolContext

• Assembly: RT.ArithmeticCoding, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
• Namespace: RT.ArithmeticCoding
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  Inherits from:

  • object
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  Derived types:

  • RT.ArithmeticCoding.ArithmeticSymbolArrayContext

Summary

Provides information about the relative frequency of arithmetic coding symbols.

Instance methods

uint	GetSymbolFrequency(int symbol) Abstract	Returns the frequency of the specified symbol. When overridden, must return a value for every possible input; return 0 if the symbol is out of the range of possible symbols.
uint	GetSymbolPosition(int symbol) Abstract	Returns the sum of the frequencies of all symbols less than symbol. When overridden, must return a value for every possible input: 0 for all symbols less than the first valid symbol, and a value equal to ArithmeticSymbolContext.GetTotal() for all symbols greater than the last valid symbol.
uint	GetTotal() Abstract	Returns the sum of all symbol frequencies. When overridden, must equal exactly the sum of ArithmeticSymbolContext.GetSymbolFrequency(int) over all possible symbols.

Static fields

uint

MaxTotal

The maximum sum of all symbol frequencies. The encoder/decoder can overflow if the sum of all frequencies exceeds this value.