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[jolo]

I am very excited about what the W3 International Web Consortium has done with the creation and standardizing of HTML 5 and the creation of the "video" and "audio"
commands. That as well as the acceptance of the superior open source multi-media format, like OGG, especially Theora Ogg for video.
What is particular wonderful for someone who creates web sites, that contain video is that Theora Ogg, is a very fast open source compressed video format that
follows industry standards and is NOTplatform dependent.   

I am also thrilled that Firefox 3.5x is already adopted the HTML 5 standard, with its revolutionary "video" and "audio" command including Theora Ogg, open source, compressed video format (and Ogg Vorbis audio format), to allow streamed video to occur, without concern about what software is on the client or web browser side.
However, there is one particular company that is committed to destroy International industry standards, as it created proprietary software and hardware. The shameless shall be nameless. 

I haven't tried this yet, but I was wondering if I can use a Theora Ogg video format in MC and play Ogg video on MC ?
A new release of Theora Ogg video encoder, just came out the other day and I am seeing great improvement in the video.
If it means that I can just add the decoder, then no problem. But, please let me know.
 

For anyone interested, if they have a browser that works on all OS platforms, and is committed to industry standards, namely Firefox 3.5x, videos can be seen on this format, without
the need for any special software on the client end.
Click here to get Firefox 3.5x

[Alex B]

Can the latest MC 14 play Ogg Theora Video ?

It can, though the filename extension needs to be changed from .ogv to .ogm and you must have suitable DirectShow filters installed (CCCP will do).

The "hacked" OGM format and filename extension is not recommended by xiph.org. The recommended filename extension for the current ogg video format is ogv.


To Yaobing/JRiver:

Could you please add the .ogv filename extension to the video file types? It would also be good to completely separate the .mkv, .ogm and .ogv video file types so that each of them can be used with different DS settings. Thanks.


EDIT

An old quote from xiph.org:

What is this OGM stuff, anyway?

Once upon a time, a young guy named Tobias created DirectShow filters for the Ogg Multimedia Format. They're great; You can use them to encode video into the Ogg format, as well as play Ogg Vorbis files on programs like Windows Media Player. This is a useful invention, because a lot of people want to use Ogg Vorbis for audio when they archive their DVD's or any other motion-picture oriented multimedia.

So, what's the problem?

The problem is that the DirectShow filters are an extension to the Ogg Multimedia Framework that lies outside of the Ogg specification. So, while it is certainly useful, it's not really 'Ogg.' Ogg is a trademark of the Xiph.Org Foundation, and it's used to delineate between 'within the specification' and 'outside of the specification.'

Why are you so crazy about the specification?

It is important to maintain control of the specification in these matters. The Xiph.org Foundation's mission is to produce open and free alternatives to closed-source and/or proprietary multimedia. In order to make sure everyone is on the same page in regards to patents, copyrights and other legal constructs, the specification needs to remain open and free. If it's from Xiph, it's open and free. It's important not to blur this line.

Aren't you going a little overboard with this? OGM is useful.

If it weren't useful, I wouldn't be talking about this! The problem is that people could be convinced that OGM is Ogg, when it isn't. This has already shown itself, and it's a bit distressing.

I think it's great that Tobias has used Ogg to make something useful. It's not an issue of performance or design, it's a problem of nomenclature.

So, it's just the name, right?

I wish it were that simple. The biggest problem is that people are using OGM primarily to encode DVD's with DivX video and Vorbis audio. I fear that people might be using OGM, and convince themselves that they're using completely free software, when they're not. After all, 'Ogg' is from Xiph, and Xiph only produces free stuff. DivX and XviD are MPEG-4 variants, and subject to any holds that the MPEG patents have on those technologies.

Again; Nothing wrong with DivX or XviD, they're just not completely open standards. Patents apply. It doesn't mean they're not useful, it just means that you might be getting more than you bargained for on the legal side of things.

So, contact the author of OGM, and ask him to stop calling it Ogg.

We've tried. He's not available.

Okay, then release something that people can use that will be open.

You can use Theora.

Aren't you just whining?

I don't think so. We get a lot of E-mail from people, demanding support for OGM. Of course they come to us, it's called 'Ogg.' We're the 'Ogg People.' We don't support OGM. We didn't write it, and we don't have the resources to help people with it. We barely have the resources to deal with all the E-mail just requesting more information about it. The proliferation of OGM equates to a measurable drain on our resources.

Tell me more about technical differences between Ogg and OGM

Ogg Vs Ogm file format are the same, the main difference is the first header in each stream. OGM uses several standardised header formats, audio, video and text, in order to make identifying unknown codecs easier in directshow (and subsequently other frameworks). ie with those three headers you can use any audio or video format you choose without have to write custom header parsing routines for each codec in the demuxer.

In other words ogmtools provides the standard du jeur for encapsulating various common-in-avi codecs in an Ogg bitstream, like 'divx', 'mp3' and so on.

Okay, and what is status of OGM?

The original oggds codebase by Tobias is pretty stagnant, but i think some folk at doom9 have started maintaining it.

7th July, 2004.

[glynor]

To Yaobing/JRiver:

Could you please add the .ogv filename extension to the video file types, and make it so these file types can be user-configurable? It would also be good to completely separate the .mkv, .ogm and .ogv video file types so that each of them can be used with different DS settings. Thanks.

There, Alex.  Fixed that for you.  

[Yaobing]

and make it so these file types can be user-configurable?

glynor,

What do you mean by that?  How would you want them to be configured?

Matroska file (mkv)
OGG file (ogv, ogm)

[glynor]

I want to be able to add my own file types, and modify the "groupings" that are already there.  More like the Windows file extension registry, where it is extensible by the user.  For example, I have a bunch of proprietary formats (which are supported by DirectShow) for some video-microscopy applications we use.  It'd be nice to be able to have MC handle these.  And then there are other "document" types, which would always be handled by an "external application".  Why not let us define our own file types?

I understand that most novice users wouldn't want to get in there and mess around with it, but it would be a very nice tool for power users, and would take the onus off of JRiver to constantly have to manage the "master list" to try to keep everyone happy.  All you'd have to do would be add a nice, big "reset to defaults" button in the UI, for when people mess around without understanding and get it all borked up.

But, in this specific case... Yes, MKV should be separate from OGM.  And MKA should certainly be separate from MKV.  I have no particular opinion on grouping OGM and OGV together.