Rate smoothing a context based adaptive entropy decoding scheme using a FIFO

摘要

Incoming decoded data 1, for example from an H264 decoder, is fed to an encoder unit 2 that entropy encodes the decoded data using a parallel encoding scheme that includes context based arithmetic encoding. The syntax is chosen so that the context does not depend on the immediately previously encoded symbol. The output of the encoder 2 is fed to a FIFO memory whose output is fed to a complementary decoder 4 whose output produces a delayed copy of the incoming decoded data 1.