David Chiappini

Video: JT-NM ProAV Technology Roadmap for IPMX – Panel Discussion

Posted on by Russell Trafford-Jones

Building on our coverage of IPMX to date, we see that this push to create a standard for IP for the ProAV market has been growing in momentum. With activity now in AIMS, AMWA, VSF and SMPTE, it’s important to bring together the thinking and have a central strategy which is why the JT-NM have released a roadmap. This has started by defining what is meant by ProAV: “The market for audiovisual (AV) communication equipment used in professional, industrial, commercial, and retail environments as a means to communicate with people.” As is noted by today’s panel, this is a wide definition and helps us understand why this is such a different proposition compared to the related ST 2110 and NMOS work for the broadcast market. There are lots of silos in the Pro AV space with many solutions being developed to cater to just one or two. This makes requirements capture difficult and has led to the fragmentation seen to date and partly why strong manufactures tend to be the ones pushing the market in a certain direction in contrast to the broadcast market where strong, early adopters set the direction for vendors.

 

 

The roadmap itself sets the aims of IPMX, of instance that is secure from the start, it will scale and integrate with 2110/AMWA broadcast installations and be able to be a software only solution. Phase 1 of the roadmap identifies existing standards and specifications which underpin the three IPMX tenents of security, Media, Control. Identified are NMOS IS-10 for access authentication and encryption, relevant 2110 standards, NMOS IS-04,-05, -07 and capabilities to use EDIDs. Phase 2 then adds HDCP support, support for ProAV audio formats, enhanced control such as for audio mapping (IS-08), legacy camera control via RS-232 etc. and then phase 3 will bring in media compression for WAN links, error correction techniques and closed captioning & subtitling. For control, it will add USB HID and a training and certification scheme will be launched.

The panel concludes discussing how IPMX is very much at home with live production which, of course, should help it dovetail well into the broadcast space. IPMX is seen by the panel to simplify the implementation of a 2110-like infrastructure which should allow easier and quicker installations than 2110 which are seen as larger, higher risk projects. IPMX could, it’s suggested, be used as an initial step into IP for broadcasters who seek to understand what they need to do organizationally and technically to adopt IP ahead of perhaps developing 2110 systems. But the technology is seen as going both ways allowing broadcasters to more readily adopt compressed workflows (whether JPEG XS or otherwise) and allow Pro AV players to bring uncompressed workflows more easily into their productions for those that would benefit.

Watch now!
Speakers

Karl Paulsen Karl Paulsen
CTO,
Diversified
Andrew Starks Andrew Starks
Director of Product Management,
Macnica America’s Inc.

David Chiappini David Chiappini
Chair, Pro AV Working Group, AIMS
Executive Vice President, Research & Development,
Matrox Graphics Inc.
Richard M. Friedel Richard Friedel
Executive Vice President, Technology & Broadcast Strategy,
21st Century Fox

Video: IPMX – Debunking the Myths

Posted on by Russell Trafford-Jones

2110 for AV? IPMX is an IP specification for interoperating Pro AV equipment. SMPTE’s 2110 standard suite is very powerful, but not deployable easily enough to rig for a live event. At the moment the is no open standard in Pro AV that can deliver IP. Whilst there are a number of proprietary alliances, which enable widespread use of a single chip or software core, this interoperability comes at a cost and ultimately is underpinned by one, or a group of companies.

Dave Chiappini from Matrox discusses the work of the AIMS Pro AV working group which is developing IPMX. Dave underlines the fact that this is a pull to unify the Pro AV industry to help people avoid investing over and over again in reinventing protocols or reworking their products to interoperate. He feels that ‘open standards help propel markets forward’ adding energy and avoiding vendor lock-in. This is one reason for the inclusion of NMOS, allowing any vendor to make a control system by working to the same open specification, opening up the market to both small and large companies.

The Pro AV market needs more than just swift deployment. HDMI is pervasive and is able to carry more frame rates and resolutions than SDI so HDMI support is to of the list of features that IPMX will add on top of 2110, NMOS and PTP. HDMI also uses HDCP so AIMS is now working with the DCP on creating a method of carrying HDCP over 2110. TVs are already replacing SDI monitors, such interoperability with HDMI should bring down the costs of monitoring for non-picture critical environments.

Timing can be pricey and complex if PTP and GPS are required. A lot of time and effort goes into making the PTP infrastructure work properly within SMPTE 2110 infrastructure. Having to do this at an event whilst setting up in a short timespan is not helpful to anyone and, elaborates Dave, a point to point video link simply doesn’t need high precision timing. Not only does IPMX relax the timing requirements, but it will also support asynchronous video streams.

David explains that whilst there are times when zero compression is needed in both AV and Broadcast, a lot of the time we need video that will easily fit into 1Gbps. For this, JPEG XS is being used which is a lightweight codec that can be run in software, FPGA and more. This supports 4:4:4 video for maximum fidelity. For more about JPEG XS, have a listen to this talk. Some good news for bandwidth fans is that all new Intel chips support 2.5Gbe networking using existing cabling which IMPX will be supporting.

Pro AV needs the ability to throw some preview video out to an iPad or similar. This isn’t going to work with JPEG XS, the preferred ‘minimal compression’ codec for IPMX, so a system for including H264 or H265 is being investigated which could have knock-on benefits for Broadcast.

David finishes by underlining that IMPX will be an open standard that can be implemented in software on a server, on a desktop or on a mobile phone. It’s scalable and ready to support the ProAV and events industry.

Watch now!
Speakers

David Chiappini David Chiappini
Chair, Pro AV Working Group, AIMS
Executive Vice President, Research & Development,
Matrox Graphics Inc.

Video: IPMX – The Need for a New ProAV Standard

Posted on by Russell Trafford-Jones

IPMX is an IP specification for interoperating Pro AV equipment. As the broadcast industry is moving towards increasing IP deployments based on SMPTE 2110 and AMWA’s NMOS protocols, there’s been a recognition that the Pro AV market needs to do many of the same things Broadcast wants to do. Moreover, there is not an open standard in Pro AV to achieve this transformation. Whilst there are a number of proprietary alliances, which enable wide-spread use of a single chip or software core, this interoperability comes at a cost and ultimately is underpinned by one, or a group of companies.

Dave Chiappini from Matrox discusses the work of the AIMS Pro AV working group with Wes Simpson from the VSF. Dave underlines the fact that this is a pull to unify the Pro AV industry to help people avoid investing over and over again in reinventing protocols or reworking their products to interoperate. He feels that ‘open standards help propel markets forward’ adding energy and avoiding vendor lock-in. This is one reason for the inclusion of NMOS, allowing any vendor to make a control system by working to the same open specification, opening up the market to both small and large companies.

Dave is the first to acknowledge that the Pro AV market’s needs are different to broadcast’s, and explains that they have calibrated settings, added some and ‘carefully relaxed’ parts of the standards. The aim is to have a specification which allows one piece of equipment, should the vendor wish to design it this way, that can be used in either an IPMX or ST 2110 system. He explains that the idea of relaxing some aspects of the ST 2110 ecosystem helps simplify implementation which therefore reduces cost.

One key relaxation has been in PTP. A lot of time and effort goes into making the PTP infrastructure work properly within SMPTE 2110 infrastructure. Having to do this at an event whilst setting up in a short timespan is not helpful to anyone and, elaborates Dave, a point to point video link simply doesn’t need high precision timing. IPMX, therefore, is lenient in the need for PTP. It will use it when it can, but will gracefully reduce accuracy and, when there is no grandmaster, will still continue to function.

Another difference in the Pro AV market is the need for compression. Whilst there are times when zero compression is needed in both AV and Broadcast, Pro AV needs the ability to throw some preview video out to an iPad or similar. This isn’t going to work with JPEG XS, the preferred ‘minimal compression’ codec for IPMX, so a system for including H264 or H265 is being investigated which could have knock-on benefits for Broadcast.

HDMI is essential for a Pro AV solution and needs its own treatment. Different from SDI, it has lots of resolutions and frame rates. It also has HDCP so AIMS is now working with the DCP on creating a method of carrying HDCP over 2110. It’s thus hoped that this work will help broadcast use cases. TVs are already replacing SDI monitors, such interoperability with HDMI should bring down the costs of monitoring for non-picture critical environments.

Watch now!
Speakers

David Chiappini David Chiappini
Chair, Pro AV Working Group, AIMS
Executive Vice President, Research & Development,
Matrox Graphics Inc.
Wes Simpson Wes Simpson
RIST AG Co-Chair, VSF
President & Founder, LearnIPvideo.com