New Matroska field: HDR
Steve Lhomme <[email protected]>
| Newsgroups | gmane.comp.multimedia.matroska.devel |
|---|---|
| Message-ID | <CAOXsMFJUTBJYBq=NJq5StRZypDgGLUuNO203g1xz0qb5QJMG6Q@mail.gmail.com> |
For those following the news in television sets, the new thing this year is HDR (High Dynamic Range). When coupled with 4K videos it gives a bigger range of light to make more realistic pictures. Technically it works using a side channel that's transmitted to your TV over HDMI. I don't know why it's not part of the original decoded video frame, but what do I know... Since this is how it's going to be coded and transmitted (and even recorded during filming, from what I understand) that's how we should do it. We could either attach a new element in the BlockGroup of the video frame or we could add a special kind of track for that. The BlockGroup approach may be better as it's tightly coupled with the video frame. If you have more than one video stream in your file, you need to know who the extra track belongs to. Alternatively we can mix tracks like we did for 3D planes with TrackCombinePlanes. Some people at Google are working on that, so hopefully we'll hear from them soon. -- Steve Lhomme Matroska association Chairman _______________________________________________ Matroska-devel mailing list [email protected] http://lists.matroska.org/cgi-bin/mailman/listinfo/matroska-devel Read Matroska-Devel on GMane: http://dir.gmane.org/gmane.comp.multimedia.matroska.devel