OGM Development

[Nic]

This thread is just to replace the old OGM thread that got rather large. Please post your OGM suggestions/wishlist and bugs here. And ill keep this up to date over the weeks with development.

Here is OGMuxer powered version of OggMux by Koepi:
http://nic.dnsalias.com/OggMux_Nic.zip
Just place those two files in a directory and that can be used as an alternative for muxing OggMux.

AAC can now be muxed from there and work perfectly well with the current Ogg DShow filters (available at http://tobias.everwicked.com ) using CoreAAC filters for playback.

(The current CVS version of OggMux is based on DirectShow and also has Matroska support, my version will merge into that soon)

The current progress on the unreleased OggDS Filters is as follow:

• Now uses CoreVorbis filter for Vorbis decoding rather than internal filter
• Uses VSFilter instead of SubTitDS, for Subtitles. Subtitles are now activated from VSFilter rather than from the OGM filter itself. Switching languages, stability is better because of it.
• Memory leaks have been fixed.
• Eshetic Improvements

A beta to demonstrate the features will be up soon.

Next proposed new features are:
1)
Use of a Stream Switcher instead of outputing audio through the same pin. This will then work in audio switching the same way as matroska does now, and will allow for different audio samplerates/channels to be switched easily and without speeding up or down of the video.

2)
Improve the Unicode support, and general bug fixing.

Please post comments/bugs below. Try to keep them technical and to the point as possible.

Cheers,
-Nic

[Nic]

Almost forgot, Source code for my current branch of OggMux and my ammendments to OGMuxer by Cyrius are at:
http://nic.dnsalias.com/OggMux_Src.zip
http://nic.dnsalias.com/OGMuxer_src.zip

At present the code is a bit rough, it will be neatened up over the next few days.

[BlackSun]

Nic, you know what I want already . Btw you talk about a stream switcher, I have one for you: http://www.corecodec.org/projects/mmswitch

[ssjkakaroto]

hey Nic since you'll be using VSFilter for subtitles do you think it'll be possible to mux other subtitle formats in OGM besides srt?

tia

[Gaia]

Ogm + aac seems to work great but Ogm playback with aac+ audio is very very slow. It might be problem in latest "temporary experimental" CoreAAC build or just me. Anyone else having problems with ogm + aac+?

Because atleast i can't mux aac+ with current tools to that other container what can handle aac audio i can't test if it is CoreAAC problem or somenthing else.

I am testing with music video so my audio track is just 2 channels and no subtitles ofcouse.

I am using Win98SE...

[h9903209]

Thx for ongoing improvement for ogm.

I really want to know whether the problem of the speed of jumping to non-keyframe would be solved or not. I often want to jump e.g. 5,10 seconds "accurately" with speed as fast as avi/mkv. But in ogm if I choose jump to keyframe then the jump cannot be accurate while if I choose jump to non-keyframe the speed is terribly slow... T__T

[Hiro2k]

I have one little problem with the chapters in your new hybrid oggmux

When I mux in the chapters I always get this error
"Chapter 44] is not of a known format". So I deleted chapter 44 and then I get "Chapter 43] is not of a known format", and so on. I stopped trying at 35.

I also had a question about the chapters, does it split the chapters when it splits the video? That's what I'm really looking for in an OGM muxing tool, I know Suircy's can do it, but it is in commandline. I was hoping your tool could do it since it uses Suircy's to mux.

[Koepi]

From the oggmux sourceforge forum:

- add the possibility to force subtitles (like when they speak elvish in LOTR). (hehehe, some people sure can't devide oggmux from oggds fortunately we now have the possibility to work on both).

Thank you for your nice work Nic, you're project admin now and can add your sources to the project! (NB: melgish now takes a look at OggDS as well and already tests some improvements...)

Best regards
Koepi

EDIT: @Hiro2k:
could you email me the chapter-file you try to import (find my email address on my webpage). I'll have a look of it.
My first idea is: hit enter after the last line, i think the chapter import function i wrote is always trying to read whole lines to the CR/LF.

[Nic]

Thanks for all the feedback.
1) Yup, Ill try and get different types of subs into OGM. I know nothing about subs though, so its a bit of a steep learning curve.
2) Ill look into the Nero AAC+ thing, it shouldn't make any difference between AAC and AAC+ so its a bit weird. (what could be happening is AAC+ looks like it has a lower samplingrate due to SBR, I think, so it may be a problem with CoreAAC, ill check)
3) Ill work on the seeking, I looked at the code and couldn't spot the problem, but ill try again.

@BlackSun: The morgan stream switcher...nice. Ill look at that asap.

@Hiro2k: Ill fix that, damn I should have noticed that during testing, if you could email me that chapter file too, that would be great (nic at nic.dnsalias.com)

-Nic

[DAvenger]

Error message when I clicked 'Mux File!'

'E:\My' is not recognized as an internal or external command,
operable program or batch file.

Unpacked in E:\My Downloads\OggMux_Nic

P.S Morgan stream switcher suxx badly.

[Nic]

@DA: Doh! I Put " around the parameters but not around the Exe. Anyway, Ive re-uploaded a fixed version. Thanks for letting me know.

Whats a good alternative to the Morgan Stream Switcher then?

[mgerald21]

Hi NIC,

Have you already commited the new/changed OggDS code to the CVS??
I've checked out the code and didn't find the changes you mentioned.

Greets

[Nic]

No as yet, actually I have no access to the Xiph CVS. Xiph haven't been very forthcoming recently. But ill mail them soon. Ill post the source code soon (still testing if its stable) and/or setup a sourceforge project for it.

-Nic

[DAvenger]

Originally posted by Nic
Whats a good alternative to the Morgan Stream Switcher then?

I do not think that Splitter should handle stream switching. Players should

[Koepi]

I added OggDS to the OggMux project. You can upload everything there: OggDS, OggDS sources - and you can make a branch in the CVS.

It' s the easiest way to do the development(IMO of course).

DAvenger, if you want CVS access there too I need your sourceforge handle =

Regards
Koepi

[DAvenger]

if you want CVS access there too I need your sourceforge handle

I hate CVS and besides, I do not code But thanks.

[ssjkakaroto]

Originally posted by DAvenger
I do not think that Splitter should handle stream switching. Players should

you limit a lot the users with that DAvenger, i think everyone should be able to switch streams independently of the player they're using plus stream switch with the current oggds works great (at least for me), so a stream switcher filter based on that code should work great too
edit: do you think if nic and koepi work on morgan ss it would still suck?

[Nic]

@DA: ssjkakaroto is right, it does limit the player used. Ill have to look into this more. Also the corecodec guys, I assume, will be working on the morgan stream switcher...what do they use at present to switch streams in matroska?

-Nic

[DAvenger]

External switcher filter is 'ok' but to put streamswitching code into the actuall Ogm splitter ... hmm /me does not like this idea But maybe I got you all wrong I am not really sure how does it currently work in OggDS.

[tiki4]

Well,

currently, switching between streams is done in OggDS. So I think drawing this out of the filter make sense. AFAIK switching in Matroska is done by the player (TCMP or MPC) or via Morgan Stream Switcher. Maybe the OggDS and Matroska developers can ask Gabest to make his MPC internal stream switcher a stand alone DirectShow filter. Well, I guess Gabest would only need some days for that (if he likes to do so).

Cheers,

tiki4