VC-2, external is a royalty free, ultra low-latency, ultra high quality video codec designed for use in broadcast environments. The VC-2 Conformance Testing Software, external provides comprehensive testing routines for implementations of the VC-2 codec to ensure that they conform to the published specification (SMPTE ST 2042-1, external). As well as verifying correct operation, conformance testing of codec implementatons helps ensure interoperability between codec implementations.
You can read more about how the VC-2 Conformance Testing Software works and some of the tricks it uses to ensure it itself conforms to the VC-2 specification in the post 'VC-2 Video Coding: Getting it right' on the BBC R&D blog, external.
If you're developing a VC-2 codec you can find the complete conformance testing procedures in the VC-2 Conformance Testing Software Manual, external (also availble in PDF format, external).