3D to 2D encoding question.

[Azazel4]

Sorry if this is in the wrong place, couldnt work out where it should be, please move if you need to

When it comes to 3D movies, is it possible to encode a 2D version off of the 3D version, I ask this as a Blu-Ray due for release states in the description that it can do 2D playback as well as the native 3D version, which has confused a couple of us as we arnt sure how it achieves this

I have looked around and cant seem to find any information on this process or if it is entirely possible to do

Have any of you worked with a 3D blu-ray yet?
how is the m2ts files authored?
is there both 2D and 3D video streams on the same Blu-Ray?

Any help or guidance you can provide will be greatly appreciated.

[nurbs]

It depends on what kind of 3D the Blu Ray uses.
If it is anaglyph (http://en.wikipedia.org/wiki/Anaglyph_image), the one with the colored glasses, then I'm not sure. In that case there is only one video stream with an off looking picture. There may be avisynth filters that can salvage the image but I haven't checked so someone else will have to tell you. In any case I imagine there'll be a lot of preprocessing involved and you won't be to get a perfect 2D image back.
If it's H.264 MVC it's relatively easy. It consists of a normal H.264 stream with a secondary MVC stream. You just ignore the secondary stream and decode the primary as usual and you'll end up with a 2D picture. You can use the usual tools (eac3to,...) to extract the video from the Blu Ray in that case.

[Azazel4]

I would guess that since it says it needs a 3D TV that it would be the real 3d style and not the red/blue style 3D,

Thats awesome to hear about the H.264 version being in two streams so to speak, guess i should grab a 3D blu-ray to mess with first, but if its as simple as regular blu-rays then I shouldnt have issues with it.

Thank you for the answer dude, :thanks: