EAC3TO Requests and General Discussion

[SomeHumanPerson]

That all looks excellent.

[Curly]

yer sposed to prove me wrong but ok ta
have a brownie
now yuv spoken i can release it
after my siesta

[Curly]

I released 3.45. After release is when the serious bugs are found. Murphy's Law. I will pray for myself.

Gunna work on hidden streams marking and optional demux.

[von Suppé]

Way overdue, but I want to express my thanks to Curly for further developing eac3to.
Much appreciated.

[Curly]

thank you very much sire
was looking a bit dodgy there for a while
but now its peaches and cream
and thank you for your contributions over the years
lollipop or brownie?

[Sherman]

Curly's the best fixer evah!

[digimaster]

Hi! First of all, a big thanks to Curly for further developing eac3to! I have a request for the next version: please, could you update libav/ffmpeg to allow E-AC3 7.1 decoding? It's a shame that ffmpeg can decode full 7.1 E-AC3 stream but eac3to can't do it.

[Curly]

Welcome to the forum, digimaster! I have added your request to the to-do list.

[oniiz86]

I believe @digimaster's E-AC3 7.1 decoding bug is already referenced in the "Features and Functionality" list by @Guest 3, "Still decodes all eac3to streams as 5.1 (the core AC3 or EAC3) ignoring the depending frames with the extra channels. Maybe fix with updated libav dll's (ffmpeg can't create 7.1 eac3 but decode it fine)." or is that actually a different issue & perhaps not related?

[Curly]

yeah yer right i'll fix it

[Curly]

Guys, here is an initial test version eac3to_3.46_test:

* Added marking of hidden streams.
* Fixed failures with some UTF8 paths.

@HPotter

Can you please verify this with the issue we have been working on? I modified the fix slightly and need to know if it is still okie-dokie.

Working on some more fixes so this is not a release candidate yet.

Thank you. One for one and all for all!

[Curly]

eac3to_3.46 test was updated:

* Added marking of hidden streams. Curly
* Fixed failures with some UTF8 paths. HPotter
* Disabled -r8brain as it is broken. If it is specified
a warning is printed and it is not enabled. jul059
* Fixed regression to subtitles demuxing from bluray/UHD disks. HPotter

https://rationalqm.us/eac3to

Gonna have to release this quick so consider it a release candidate. Just waiting on Harry's blessing.

[Britney]

Speaking of rock stars, Rocky is like Elvis Presley and Curly is like Mick Jagger.

[Natasha]

No, Curly is like Englebert Humperdinck

[Curly]

thank you ladies yer taste is unpeckable

now go test 3.46_test or yul get a spanking

[Curly]

eac3to 3.46 was released. Thank you all for reports and testing.

[Boulder]

This is more like an audio question than an eac3to one, but might spawn a feature request

The movie North to Alaska (1960), has a 4.0-channel audio track. I guess the default configuration is that it would be three front channels and one back channel at the center, but the IMDb tech specs state that it's 4-track stereo. That would point that the configuration should be FL, FR, SL, SR. eac3to treats and encodes it as 3/1.

So if my assumption is correct, would it be possible to add a switch for these cases (or provide a suitable reordering command line in the help)?

[Curly]

Can you provide a sample and a link to the spec you mentioned? What is the relevant eac3to command line you are talking about?

Hopefully, Guest 3 will weigh in as my knowledge of this stuff is minimal and he has lots of experience with channel orders, etc.

[Boulder]

Here's a sample: https://drive.google.com/file/d/1NKGW2D ... drive_link

This is the IMDb tech page of that movie: https://www.imdb.com/title/tt0054127/te ... tt_spec_sm , also the Blu-ray case info says it's DTS-HD MA 4.0.

[Curly]

thanks, bro!

EDIT: on download i have to hit request access and now i am waiting for the email
u have to approve it

EDIT2: I guess I had to be logged in to giggle
i have downloaded it now

[Boulder]

thanks, bro!

EDIT: on download i have to hit request access and now i am waiting for the email
u have to approve it

Yes, approved. Don't know why it didn't change it to a public share once I asked for the share link

[Curly]

MediaInfo:

Audio
Format : DTS XLL
Format/Info : Digital Theater Systems
Commercial name : DTS-HD Master Audio
Bit rate mode : Variable
Channel(s) : 4 channels
Channel layout : C L R Cb
Sampling rate : 48.0 kHz
Frame rate : 93.750 FPS (512 SPF)
Bit depth : 24 bits
Compression mode : Lossless

[Curly]

eac3to says:

DTS Master Audio, 3/1 channels, 24 bits, 48kHz, dialnorm: 0dB
(core: DTS, 3/1 channels, 1509kbps, 48kHz, dialnorm: 0dB)

Is that inconsistent with MediaInfo? It's stereo with 4 tracks, right? Educate me.

[Boulder]

MediaInfo:

Audio
Format : DTS XLL
Format/Info : Digital Theater Systems
Commercial name : DTS-HD Master Audio
Bit rate mode : Variable
Channel(s) : 4 channels
Channel layout : C L R Cb
Sampling rate : 48.0 kHz
Frame rate : 93.750 FPS (512 SPF)
Bit depth : 24 bits
Compression mode : Lossless

Yep, that's what I also checked first. I'm just not knowledgeable enough to tell if MediaInfo is correct or if it just makes a best guess. There are similar movies like Edward Scissorhands and The Poseidon Adventure which are at least in some physical media releases having some odd audio tracks that you must adjust manually for correct output. Our chief audio engineering professional Guest 3 would definitely know this stuff.

I think both MI and eac3to determine the same stuff. The output is C L R Cb but if it's 4.0, in my opinion it's not correct. I tried reading up on this 4-track stereo stuff and it is some sort of old surround thingie but couldn't find out what the actual setup would be.

[Curly]

OK, well is there any issue processing it with eac3to?

He he, you can send him an email thru the board now (if he has it enabled). admin