VQ-Decoder Validation Kit(dvc)

Decoder Validation Kit (DVK)

VVC/H266 Elementary Streams


DVK is

  • A Video Decoder Certification
  • A powerful validation environment for VVC, AVS3, AV1, HEVC, VP9 Decoder developers
  • A comprehensive set of test bitstreams, a configurable encoder, and analytic tools to verify decoder compliance to a standar
  • A tool that allows comparing test decoder’s output with «known correct» results
  • An instrument to determine anomalies in decoder design to save validation and support costs


  • The ability for a user to generate own streams with Configurable encoder
  • Configurable Encoder is 100x faster than a Reference (HM, VTM et al) encoder
  • Create test bitstream with restrictions to hardware design for the current stage of development
  • Kit of additional tools - Configurable encoder, Coverage & Analytic
  • 1-year free support

Target audience

  • Codec HW IP & SoC designers
  • Codec SW developers
  • Video Codec Validation & QA engineers
  • Academic Researchers


  • Chip manufacturers CPU, GPU
  • Video co-processor for wide use in cellphones, TV, STB

Technical features

Main 10 profile
(8/9/10bit, mono/420)
Main 10 444 profile
(8/9/10bit, mono/420/422/444)
Multilayer Main 10 profile
(8/9/10bit, mono/420)
Multilayer Main 10 444 profile
(8/9/10bit, mono/420/422/444)
Syntax - handy tiny size (small resolution and 1-2 frames only) to maximize coverage of each syntax element and cross-coverage of essential pairs. One test stream - one feature, make individual «coding block» design independently. Good for initial RTL design.1196streams2322streams1735streams3400streams
Stress - include all the features covered by the Syntax streams, in higher resolution and more frames. Good for an advanced stage of decoder design.280streams280streams--
Performance - test the limits of the hardware decoder’s speed. Good for final validation to prove compliance to Level requirements.39streams42streams--
Error resilience - set of non-fully-compliant bitstreams to test decoder’s robustness to errors and ability to recover. Good for final validation to deliver viable end-user product.213streams15streams--


  • Configurable encoder - to allow the Customer to create their own test stream combination (from syntax to error resilience)
  • Residual randomization - test limits of transform and quantization which are hardly achievable with the natural encoding process
  • Override - determine a scenario you want for a block with the Override feature, making an exception from a pattern
  • Random or RDO based encoding - select a mode for every block
  • Coverage Tool - how the provided streams cover all cases. Compatible with streams.
  • Analytic (Collector, Reporter, Differ, Analyzer) - graphical representation of syntax coverages, speed up test cycles by reducing the streams and their number, compares the stream coverage


Speed up your decoder design Time to Market with DVK