Convert BL+FEL+RPU to BL+MEL+RPU or BL+RPU

[quietvoid]

Convert BL+FEL+RPU to BL+MEL+RPU or BL+RPU

[quietvoid]

There is no support for converting (or discarding) the layer without demuxing, currently.

There was an experiment in the convert_rpu branch, but the resulting files did not playback properly.
PRs welcome to fix it, as I don't have time to work on this in my free time.

What works right now (if I remember correctly) is to mux a converted layer back in dual stream MKV, and remux with MakeMKV.
That would however not discard the layer at all.

[nohajc]

Thanks for the quick response!

Let's say I just want to convert FEL to MEL. I can use your dovi_tool in mode 1 which will produce BL and EL files. Now I need to combine these into a single track again and mux into mkv.

Are you saying MakeMKV can do that? (i.e. take raw hevc input as opposed to full BD image)

Or do I create mkv with two video tracks first and then somehow merge them?

I suppose I could also use mp4muxer and remux that mp4 back to mkv but the dolby's tool seems kind of slow.

[quietvoid]

Or do I create mkv with two video tracks first and then somehow merge them?

Yes, MakeMKV merges them back I think.
Alternatively you can use yusesope's python script to mux the raw bitstreams together.

[nohajc]

Yeah, I've seen references to that script all over MakeMKV forums but it looks like there's no repository. I could only find a bunch of mega.nz links scattered through various posts. :D

Anyway, I think this can be closed. It was more of a question than a feature request. Thanks again.

[quietvoid]

Eventually my goal for this tool is to have these features:

• Muxing BL, EL together
• Convert RPU, or discard EL (keeping RPU) and output as single layer
• Injecting RPU in between frames

No idea if and when any of those will be done though.
They would require proper processing of the HEVC format.