hubblec4 , can you give me a specific use case that I can use during development? That would include the disk and link to purchase, an MPLS that serves as the base, the M2TS list for that MPLS, and the modified M2TS list that is desired. For extra credit, explain why those changes to the list are r...

Was wondering what to work on next. This could be it. I also want to address a feature request from SomeHumanPerson.

"A rose by any other name would smell as sweet."

Welcome to the forum, hubblec4!

You are most welcome. Please test this: https://rationalqm.us/misc/DGDemux_hubblec4.rar I ended up doing it your way, i.e., create the forced file but delete it afterwards if there are no forced subs, as it was a bit easier that way. Also, the forced only option in the GUI is ignored and will be rem...

I have it working. Gonna do some testing versus eac3to before giving you a test version, hopefully today.

The initial implementation will give a yes/no indication only. When this option is given DGIndexNV checks whether its operation is supported on the hardware (it tries to initialize CUDA). DGIndexNV returns immediately with exit status 1 if operation is supported and exit status 0 if operation is not...

DGDecNV build 248: * Fixed demuxing of LPCM 3.0 channels. :salute: SomeHumanPerson * Added a new option -check to DGIndexNV. :salute: Zathor When this option is given DGIndexNV checks whether its operation is supported on the hardware (it tries to initialize CUDA). DGIndexNV returns immediately with...

When demuxing a sup stream, I would create two output file streams, one is for the full subs and the other for the forced subs. If a sub marked as forced the data also be written to the forced-sub-output-file. After finish demuxing I would check if there was forced subs, if not than delete the forc...

Thank you for the information. I could count the forced subs but there's no good way to give you that information. How about if I just always make the normal demux of normal plus forced and automatically make an additional forced-only demux if there are any forced subs. The file name for the latter ...

Do you know what the other apps are doing in this regard, especially eac3to?

Sure, I get it, thank you. Lemme think.

Slipstream for DGDemux/DGDemuxGUI build 66:

* For demuxing to W64, wrap LPCM in WAVEFORMATEXTENSIBLE instead of WAVEFORMATEX. SomeHumanPerson

https://rationalqm.us/dgdemux/binaries

I slipstreamed DGDemux build 66 with support for extensible. Will do DGIndexNV when I finish up a feature for Zathor.

Yes, I agree. I have coded extensible and tested it on the 3.0 stream. Got binary identical to eac3to.

Still have to regression test all our LPCM files. Then I will release for both DGDemux and DGIndexNV.

Is implementing WAVE_FORMAT_EXTENSIBLE a substantial task? No, it's easy. Formally, extensible is needed for nchans > 2, but in practice all apps are quite happy without it. I'll go ahead and implement extensible. I avoided it because I'm not sure if extensible is OK for nchans < 3 and didn't want ...

DGDemux/DGDemuxGUI build 66:

* Fixed demuxing of LPCM 3.0 (3 channels: L/R/C). SomeHumanPerson

https://rationalqm.us/dgdemux/binaries

Released fix as build 66. Thank you for reporting this and supporting the debugging.

If we run into any 20-bit streams, then we will need to implement extensible. I've never seen one although they are allowed on a bluray.

Turns out we just need to delete the extra 4th channel data as stored on the bluray. We already do that for mono PCM (i.e., delete the extra second channel data), so it was just a simple addition based on the mono data deletion. Extensible format is not necessary here. I have it working and will mak...

Yes, it generalizes.

https://www.ambisonic.net/mulchaud.html

We have to wrap it as WAVE_FORMAT_EXTENSIBLE instead of WAVE_FORMAT_PCM. Also not write out superfluous data for 3 channel format.

A test stream is now in hand and investigation has begun.

Maybe we can do it this way: Can you give me a 100MB sample of the M2TS file that contains this audio? Then I can debug it in DGIndexNV.

Never heard of or came across an LPCM 3.0 so it's no surprise it's not working. I'll have to order the disk and try to fix it. EDIT: $75 ouch. Do you know of any other cheaper disks (preferably available from US Amazon) that have LPCM 3.0? EDIT2: Found 'Vicky Cristina Barcelona' bluray for $18. Orde...

Just a quick note, the DGMPGDec main page still says v2.0.0.7 is the latest release (and links to that file) but the binaries notification thread has v2.0.0.8 posted as of Dec. 28, 2022. Fixed. Thank you for pointing it out. Maybe I was supposed to be using DGDecode all along! That would be MPEG2So...