Function Description

This core implements one clock per symbol Huffman decoding of a JPEG data stream. It is fully programmable to support user provided Huffman tables. It outputs the RUN/LENGTH code as well as the amplitude of the non zero coefficient. The design is fully synchronous.

Features

• Fully programmable Huffman decoding of JPEG stream
• Guaranteed one clock per symbol operation
• Multiple user provided tables (i.e. luminance and chrominance)
• High clock speed and low gate count achieved
• Suitable for JPEG implementations
• Fully synchronous design
• Available as fully functional and synthesizable VHDL or Verilog core
• Testbench provided.

Symbol

Applications

Typical applications for the Huffman Decoder include printers, desktop video editing, digital still cameras, surveillance systems, video conferencing and other consumer products.