Grencola wrote: ↑
Mon Apr 29, 2019 5:07 am
These files are still dual layer (profile 7 usually) which is why only certain models support playback of them.
I understand that. But I wonder if the process to combine dual-layer to single-layer is relatively simple and can be reverse-engineered.
The public DV docs state that MEL extension layer streams can be parsed and combined without instantiating secondary hevc decoder. The blu-ray players apparently do it in software on a relatively low-power SOCs. So the process has to be simple.
Unfortunately there are no public tools available to combine the two layers into a single layer file like the LG DV .ts sample videos. You would need Ateme Titan software running on an official Dolby CMU workstation with an up to date license to author such a process.
That's what I am looking for. All we need is a couple 10-second identical sample files, authored as UHD-BD profile 7 (double layer) and a signle-layer profile (profile 8?). If the combining process is indeed simile, the algorithm can be deduced just by analyzing the data. If anyone can provide such samples, I will not share them with anyone.
But yeah, the result is still lossless video quality as no compressing is performed, and the hdr10 baselayer still remains for if your tv doesn't support DV it falls back to hdr10 instead of sdr.
What DV profile are these files? And where can I get these LG DV single-layer sample files?
Are you saying that a single-layer "combined" DV file still retains HDR10 compatibility, even when played on a TV without DV support? This sounds really nice if it is true.