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Hollywood Post Alliance 2008

Hollywood Post Alliance 2008. Dirac “Moving on” Peter Wilson hddc Ltd. Outline. Dirac Drivers Dirac Progress Report Dirac Hardware Status Dirac Software Status Dirac in Production and Post Dirac & MUPPITS Dirac Standardisation Dirac & Super HD. The need for Dirac “Commercial”.

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Hollywood Post Alliance 2008

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  1. Hollywood Post Alliance2008 Dirac “Moving on” Peter Wilson hddc Ltd www.hddc.co.uk

  2. Outline • Dirac Drivers • Dirac Progress Report • Dirac Hardware Status • Dirac Software Status • Dirac in Production and Post • Dirac & MUPPITS • Dirac Standardisation • Dirac & Super HD www.hddc.co.uk

  3. The need for Dirac“Commercial” • Transactional Licences cause costs to spiral • Internet Distribution mandated by the UK Government • BBC is paying substantial Codec license fees already • BBC expects to support 5 million streams + • BBC is a public service organisation and is under pressure to support open Technology www.hddc.co.uk

  4. The need for Dirac Technical • Concatenation of dissimilar compression systems now a big problem • Block based DCT Codec artefacts very visible at very low bit rates • Urgent need for: • Mezzanine Compression 3Gbps into 1.5 GBPS plant for 1080P50 Production (VC2) • Internal Distribution 1.5 Gbps into 270Mbps to use existing HD plant (VC2) • License free ultra efficient streaming codec www.hddc.co.uk

  5. Dirac performance • 720P25 @ 3.5 Mbps decodes on typical Laptop • 1920 x 1080 x 50P @ 12 Mbps target • 1920 x 1080 x 25P @ 8Mbps Demo Roll Tape www.hddc.co.uk

  6. Dirac Progress ReportDirac-Pro / VC2 • VC2 Core standardisation moving along • Versions availiable • 2-1 Mezzanine 1080P50/60 into HDSDI • 5-1 Internal Contribution 1080I/720P in SDI • 2-1 Twin channel / Stereoscopic • Viewable picture in compressed bit stream • Embedded Audio included inc Dolby E • 1.5 and 3Gbps interface www.hddc.co.uk

  7. The Dirac Pro family The Chameleon 1RU Solution Or the The Stand Alone “Brick” Solution www.numediatechnology.com www.hddc.co.uk

  8. Dirac Pro for Contribution Links DP400 – HD over SD HD Studio – Glasgow 270Mbit/s fibre links Viewable Compatible Picture DP-400DR DP-400ER HD Studio - London www.hddc.co.uk

  9. DP-100 The Solution for HD Stereoscopic Outside Broadcast DP-100E 1080p25 Dual link HDSDI IN Camera 1 DP-100E 1080p25 Dual link HDSDI IN 1080i HD-SDI IN 1080i HD-SDI IN Camera 2 DP-100E 1080i HD-SDI IN 1080p25 Dual link HDSDI IN 1080i HD-SDI IN HD-SDI OB VAN Camera 3 1080p25 Dual link HDSDI IN DP-100E Camera 4 www.hddc.co.uk

  10. Dirac Progress ReportSoftware • C libraries for encoder & decoder exist • Software Specification available • Source Code Available http://dirac.sourceforge.net/ • Licensing info from http://www.mozilla.org/MPL/ • Schrodinger BBC / Fluendo Ansi C Open Platform Encoder & Decoder http://sourceforge.net/projects/schrodinger/ • Software Support availiable from David Schleef ds@bigkitten.comwww.bigkitten.com www.hddc.co.uk

  11. Dirac in Production & Post www.hddc.co.uk

  12. Multiple User Post Production ITServices • Mass migration to digital for both TV and film leads to: • Huge increases in rendering requirements • Huge increase in storage requirements • The need for faster infrastructure • What if you had online access to terabytes of storage and thousands of processors? www.hddc.co.uk

  13. Multiple User Post Production ITServices • MUPPITS is the solution • Based on GRIA software (Grid Resources for Industrial Applications) it will allow: • Load sharing for peaks and troughs and/or • New specialist rendering plants and businesses • Commercial and content security • GRIA administers the licences for the existing software applications • MUPPITS pulls together: • the production, post-production, IT services, communications and management system communities www.hddc.co.uk

  14. Multiple User Post Production ITServices • The MUPPITS project is co-funded by the UK Technology Strategy Board and runs for 2 years from 1st January ‘08. • Digital TV Group (DTG) • BBC (DIRAC) • HDDC • IT Innovation Centre • Ovation Data Services • Evolutions Television • Smoke & Mirrors • SohoNet • Pinewood Studios www.hddc.co.uk

  15. Dirac Standardisationas VC2 • VC-2 spec is the specification of the syntax and semantics of the VC-2 bit-stream • It defines the processes for decoding the bit-stream into video frames. • Specification for the raw decoded video data • Specification for a file that contains all the metadata extracted from the file • The metadata includes a frame sequence number for each frame www.hddc.co.uk

  16. Dirac Standardisationas VC2 • The VC-2 spec (143 pages) was adopted as Committee Draft (CD) at the meetings in Burbank early December 2007 • The VC-2 confomance spec was also adopted as Committee Draft (CD) • Both were balloted for FCD (Final Committee Draft) status and both ballots have recently closed • Two further documents to be introduced in March. • "mezzanine compression" specification • "mezzanine transport" specification. • Documents from SMPTE Kavi site for members www.hddc.co.uk

  17. Dirac Standardisationas VC2 summary • VC-2 is a broad spec. It covers: • Frame-based coding • Intra-frame coding for low latency coding • It contains all the 'hooks' to allow the inter-frame Dirac codec to be standardised at a later date • The intra-frame coding is already defined in VC-2 • Any new document for Dirac will probably be assigned a new number – VCx • So the coding system will then be able to code video as: • a) low-delay sub-pictures • b) medium delay frames and • c) longer delay inter-coded frames. www.hddc.co.uk

  18. Dirac Pro Parameters • Direct support of multiple picture formats from 4K (4096 x 3112) to Q CIF (176 x 144) • Direct support of multiple chroma formats e.g. 4.4.4/4.2.2/4.2.0 • Direct support of multiple bit depths e.g. 8 bit to 16 bit • Direct support of interlace via metadata • Direct support of multiple frame rates from 23.97 fps to 60fps • Definable pixel aspect ratios www.hddc.co.uk

  19. Dirac Pro Parameters • Definable “Clean Area” for inputs within larger containers • Definable signal ranges and offsets • Multiple colour spaces with metadata to describe: • Colour Primaries • Colour Matrices • Transfer Functions • 32 bit frame numbers (more than 2 years @ 60 Fps) in both I frame only and Long-GOP • A choice from multiple wavelet filters (including filters optimised for down-conversion & Fidelity Filters) www.hddc.co.uk

  20. Dirac Pro Parameters • Definable wavelet depth • Selection of Entropy Encoders • Non Sequential Decoding • Seek by Picture number (NLE friendly) • Bayer Raw Friendly • Open EXR support Strategy www.hddc.co.uk

  21. Dirac & Super HD • BBC cooperating with NHK • 8k coding with long GOP not possible with J2K • GGBR matrixed to Y.Y.Cb.Cr • SHV Production currently uses 16 or 32 HDSDI Cables, Diac Pro Target 1x10Gbps • Experimenting with 8K x 4K x 60 @ 50 -250 Mbps Long GOP for delivery www.hddc.co.uk

  22. The End www.hddc.co.uk

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