H.264/AVC Fidelity Range Extension (FRExt)


After finalization of the H.264/AVC base specification, JCT-VC continued to work on extensions.

The Fidelity Range Extension (RExt) provides tools to support 4:0:0, 4:2:2 and 4:4:4 color spaces and additional bit depths.


Reference software

The reference software for FRExt was merged into the JM software.

H.264/AVC reference software documentation

Bug reporting

Software bugs related to FRExt can be reported using the main H.264/AVC bug tracker:

Overview Papers

JCT-VC chairs

  • Jens-Rainer Ohm
  • Gary J. Sullivan

JM software coordinators

  • Karsten Suehring
  • Alexis Tourapis