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1、MXF Overview,Bruce Devlin VP Technology, Snell MXF, TS, AVI Mosalina file-based QC system Metadata enabled MAM / Automation control interfaces (SNMP, VDCP) Provides network interface Wavelet-based pre-processing,The Ph.C difference,Block Match,Ph.C,Camera Pan,MacroBlock Motion Vectors,The case for l
2、ong GOP,Goal: generate a post produce-able Digibeta quality master Practical tests with various test material Long-GOP vs I-frame Constant (CBR) vs Variable Bit Rate (VBR) Example: assume archive asset at 14 Mbps 12 Mbps video + 1.5 Mbps audio + data 6.3 GB storage space required for 1 hour 22.5 GB
3、for 50 Mbps I-frame only Issues Storage cost Access / transfer time Number of simultaneous clients (e.g. edit),SOLD TO TURNER,Ingest for server play-out & Master delivery applications,HD encoding solution for server play-out Benefits: Highest quality results, including at DS-3 bitrates (ie 45 Mbps)
4、Easy integration with broadcast server (Pinnacle at Turner) Flexibility on the audio: ability to mix stereo and multichannel, uncompressed and compressed (Dolby E, Dolby AC-3, etc.),Ingest for server play-out & Master delivery applications,Ingest Station,CORE,Source from production site,Bridge,Monit
5、oring + Mosa QC,Mastering Unit,Pro-bel Automation,Technical Metadata,Cache,Transcoding,Pinnacle play-out server,Archive Warehouse,IT Network Delivery,Typical HD ingest system for broadcast play-out,SOLD TO TURNER,Mosalina,QC and Live,Why Mosalina?,Move to file-based infrastructure MPEG-2 omnipresent
6、 QC still fundamental Automated QC reduces workflow cost Automated QC reduces human errors But how do you QC files? How do you save money on QC?,now SNMP controllable!,How does automated QC work?,The mosalina application .,Mosalina applications,Mosalina Mosaic download free trial from ,MediaX,MediaX
7、 Applications,MediaX is ready for: A play out and ingest server (MPEG2 MXF) A mixing engine (multi-layer, realtime) A CG/logo embedder An I/O board An MXF and legacy file-format bridge An easy-to-program tool for developers looking to build their own solutions,SDK Tools,MXF Express installed with Me
8、diaX,Comet,Easy-to-Use Interface,Interoperable Metadata,Broadcast operations moving to file-based infrastructures + dizzying amount of videotape archives New technologies that allow broadcasters to build a-la-carte facilities without compromising interoperability: DMS-1/RP-210 SMPTE Metadata Standar
9、d MXF SMPTE File Format and AAF Standards MPEG-2 heavily entrenched in broadcast XML most widely spread interchange technology Market-best encoding built as solutions for real-world problems,Usability Compression Template,Usability Annotation Template,Metadata Collection Strategy,Metadata Collection
10、 Strategy,Metadata Collection Strategy,Unique three-stage metadata aggregation architecture Large, geographically dispersed systems at localized system speed and cost MP3 Librarian analogy: Metadata is secure INSIDE the file and is interoperable,How does it integrate with DAM?,Digital Asset Manageme
11、nt System functions Ingest Annotate and research metadata Rights / Legal support Storage management Security management E-commerce support Asset Management is not S&W business MetaShare offers specialized subset of MAM custom-tailored to the requirements of broadcasters,What is left to standardise?,
12、New Topics,dCinema applications SMPTE DC28 encrypted content AAF compatibility carriage of large streams e.g. tape timecode e.g. XML documents for subtitle authoring New Essence mappings AES / BWF VC-9 - the Windows Media 9 codec,Ongoing topics,UMID how is it used in real life how does it work with
13、Partial Restore of MXF? Metadata how do public organisation register metadata how do we cope with synonyms how do we harmonise different schemes?,Do the different vendors inter-operate?,MXF Implementers Group,http:/www.mxfig.org/ meetings co-timed with SMPTE meetings investigating interoperability i
14、ssues debugging the specification (an interpretation) creating corrigenda creation of sample file repository probable forum for interoperability tests,IRT,http:/www.irt.de/IRT/mxf/ MXF Test Center MXF Analyzer Light software - free needs MXF:SDK - buy from MOG solutions free testing of files via web
15、 upload,In the field,To date Good interoperability tests trade shows Good co-operation between vendors Early adopter customers happy with results MXF has become a “MUST HAVE” on products,How can I join in?,User input is vital,The Specification http:/www.smpte.org/ join the W25 engineering committee go to an ad-hoc Implementation & Interoperability http:/www.mxfig.org sign up to the site go to a SMPTE meeting Testing http:/www.irt.de/IRT/mxf submit files & products,Thank you for listening have a stretch and then well get technical,MXF Overview,