The next axis that's equally important, the time axis. That's important, it tells you about how you'll process it, what sort of processing engineering you need. It may be in text form, in binary form so that's the first context.
The metadata coming out of the devices, it typically is one of four categories as you pointed out, Chris. Firstly, you may want to visualize it in a more friendly fashion. There's a number of things that you may like to do with the metadata on set or if you're backhauling the metadata to do stuff with it. By the time you need it, going into the VFX pipeline or the distribution pipeline, you have to go and reinvent the metadata from scratch. We knew who was in front of the scene on set! We threw that metadata away. When I look at metadata papers, I see people showing how clever it is to look at the video and figure out who is in front of the camera in that scene. What's interesting, when you shoot that scene, you know everything about it. The person holding the steadycam may be on the back of the truck with a GPS but that truck may be a trailer being towed and you may have that information that's towing the truck, the trailer, and the cameraman pointing it to the most important point on set, the actor. It may also be the pan and tilt, the velocity of the gimbal upon which the camera is sitting. It may be the GPS location of a cameraman running along with a camera. It could be the focal length of a lens, that in itself is a difficult thing to define and I'm not getting into that level of detail today. Interested to hear your thoughts.īruce Devlin: Let's give a minute outlining the problem as I see it, as we start to bring more and more devices into this Internet context, more and more of them emit metadata, in particular in the media production space. We talked previously about the metadata that's carried in the bitstream so I don't know if there is anything in there we want to expand on that. Can we dig a bit on the detail around that and to think about what, in terms of a browser API context, what we should be looking at that's interesting. Bruce, if you would like to say a few words, you introduced an interesting diagram showing the different levels of information, is it textual, binary information, is it asynchronous, is it metadata. This was a topic that Bruce introduced in his presentation. Preserving metadata in production workflows Ĭhris Needham: We would like to spend the next 20 minutes talking about metadata. Ĭhris Needham: In this session, we're proposing to cover metadata in the media production process and we'll talk about overall architecture issue, accessibility, and we'll spend the last 30 minutes of the call summarizing and looking at the next steps of where we should be taking these and where we go in the future.
See Opening remarks slides and transcript. Preserving metadata in production workflows Rachel Yager (W3Chapter), Ed Gray (Avid), Emmanuel, Francois Daoust (W3C), Gerrit Wessendorf, He Zhi (China Mobile), James Pearce (Grass Valley), Jo Kent (BBC), Julian Fernandez-Campon (Tedial), Karen Myers (W3C), Kazuhiro Hoya (JBA), Kazuyuki Ashimura (W3C), Kelly (CaptionFirst), Lin Li (China Mobile), Louay Bassbouss (Fraunhofer FOKUS), Marie-Claire Forgue (W3C), Paul Macklin (Vimond), Paul Randall (Avid), Peter Salomonsen (WebAssembly Music), Pierre-Anthony Lemieux (Sandflow Consulting / MovieLabs), Sacha Guddoy (Grabyo), Sebastian Tatut, Simon Thompson (BBC), Song XU (China Mobile), Spencer Dawkins (Tencent), Steven Liu (OnVideo), Steven Liu (OnVideo), Takio Yamaoka (Yahoo! JAPAN), Van (Vidbase), Wendy Seltzer (W3C), Wolfgang Heppner (Fraunhofer IIS), Xiaoqian Wu (W3C), Xueyuan Jia (W3C). Present: Animesh Kumar (InVideo), Bruce Devlin (SMPTE), Chris Needham (BBC), Christoph Guttandin (Media Codings/InVideo/Source Elements) (he/him) (Christoph Guttandin), Daniel Gómez (InVideo), David Nessen, Dominique Hazael-Massieux (W3C), Donovan McClelland, Dr.
Metadata, privacy, accessibility, and standardization roadmapĪlso see the agenda, the minutes of session 1 and the minutes of session 2. Timeline photo by Jacob Miller on Unsplash
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W3C/SMPTE Joint Workshop on Professional Media Production on the Web Live session 3 - W3C/SMPTE Joint Workshop on Professional Media Production on the Web
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