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Topic: Lossless Extensions for Opus (Backwards Compatible) (Read 81118 times) previous topic - next topic
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Lossless Extensions for Opus (Backwards Compatible)

Reply #100 –
Plays fine with LAV Filters, MPC-BE's internal filters and DC-Bass Source Mod.
But, bitrate 2628kbps?!
"Maverick Tools", something of your creation?

Lossless Extensions for Opus (Backwards Compatible)

Reply #101 –
Quote from: CoRoNe on
Plays fine with LAV Filters, MPC-BE's internal filters and DC-Bass Source Mod.
But, bitrate 2628kbps?!

Good.  And it's a stress test to see how well players honor section 3.2.5 of the RFC.

Quote from: CoRoNe on
"Maverick Tools", something of your creation?

Yes.  maverick-tools is a the front-end that also acts as a sandbox for testing higher-level principles.

https://github.com/wswartzendruber/maverick-tools

libmaverick is going to be the backend.  It will initially wrap libopus.  There is already work here, but it has to be redone.

https://github.com/wswartzendruber/libmaverick

Lossless Extensions for Opus (Backwards Compatible)

Reply #102 –
Quote from: wswartzendruber on
Quote from: 2Bdecided on
As for scalable to lossless, does anyone have a single example of where a significant number of people actually use this?

Go to your local retail store and find the Blu-rays.  Most of those will have the primary audio track in DTS-HD.
You are right, a very good example - thank you.

I think the mandatory status and extremely high bitrate of the lossy DTS core make this quite a different proposition from Opus.

Cheers,
David.
 

Lossless Extensions for Opus (Backwards Compatible)

Reply #103 –
Quote from: 2Bdecided on
You are right, a very good example - thank you.

You are most welcome.

Quote from: 2Bdecided on
I think the mandatory status and extremely high bitrate of the lossy DTS core make this quite a different proposition from Opus.

I'm not sure what you mean by "mandatory status."  As far as the Opus bitrate goes, I can take that quite high.

It's not so much what Opus was intended to do.  I don't care about that.  It's about what Opus can do.

Lossless Extensions for Opus (Backwards Compatible)

Reply #104 –
Quote from: wswartzendruber on
Apparently editing posts has some kind of expiration.

Anyway, here's a sample file with random garbage for padding.  Each packet has a different amount.  I yanked the source from 2L's free-to-download demo page.

http://www.wswartzendruber.name/uploads/op...g-test-001.opus

I'm interested in finding out about different people's playing experiences with it.


Firefox Nightly is saying "Video can not be played because the file is corrupt."...
Video?

Lossless Extensions for Opus (Backwards Compatible)

Reply #105 –
Quote from: Seren on
Firefox Nightly is saying "Video can not be played because the file is corrupt."...
Video?

I believe this is happening because I don't fundamentally understand how granule postitioning works.  This is something I'm working on.  I'm guessing the other players just don't care.  opusinfo complains about it as well.

Lossless Extensions for Opus (Backwards Compatible)

Reply #106 –
Chrome with VLC plugin just plays it; Foobar plays it, but when checking integrity, Warning: Nonsense Ogg granulepos value, file is not properly seekable, Warning: Reported length is inaccurate : 3:48.360000 vs 3:48.380000 decoded. But the file plays. Seeking works, though. I don't know how precise, it seems pretty precise.
TAPE LOADING ERROR