[ogg-dev] OGM and GStreamer

[Silvia.Pfeiffer at csiro.au]

I guess I only focused on what xiph officially "promotes", and OGM isn't quite part of that. :)

Silvia.

-----Original Message-----
From:	illiminable [mailto:ogg at illiminable.com]
Sent:	Thu 8/17/2006 2:18 AM
To:	Pfeiffer, Silvia (ICT Centre, Marsfield)
Cc:	otaky at ukr.net; ogg-dev at xiph.org
Subject:	Re: [ogg-dev] OGM and GStreamer

Well, actually most OGM files do have a subtitle track, often in 
multiple langauges.

Also, re 2. Keyframe seeking in OGM is generally a bit rough because ogm 
files can contain almost any codec as the video track, usually xvid or divx.

re 1. As a general rule you shouldn't be trying to make any more ogm 
files :) So chances are the ogg muxer is not accepting the connection, 
because it wants to make OGG files not OGM files.

OGM files don't have theora streams (well technically they could, but 
they almost never do)

As for more specifics about gstreamer... i'm afraid i don't know. Maybe 
there is an OGM muxer.

Zen.

Silvia.Pfeiffer at csiro.au wrote:
> Hi Daraku,
>
> the answer to question 3) is that only Annodex files (see http://www.annodex.net/) have a text track in them in which subtitles can be stored. So, if you use anxrip on a ogg+skeleton+theora+vorbis+CMML file (which is an Annodex video), you will be able to get the text out using anxrip or if you are searching for a library, using libannodex.
>
> A subtitle editor would actually be used to create the subtitles and store them with the video in such files, but I guess also to read such files and edit them.
>
> Cheers,
> Silvia.
>
>
> -----Original Message-----
> From:	ogg-dev-bounces at xiph.org on behalf of Daraku
> Sent:	Wed 8/16/2006 4:41 AM
> To:	gstreamer-devel at lists.sourceforge.net
> Cc:	ogg-dev at xiph.org
> Subject:	[ogg-dev] OGM and GStreamer
>
> Hi All!
>
> I have some troubles with OGG and GStreamer:
>
> 1) When I parsing ogg file with ogmdemux element, I recieve (in 
> "pad-added" signal callback) video pad as "application/x-ogm-video", but 
> not as "video/something". And that why I can't link It to the oggmux 
> element and  write new OGG file :(
>
> 2) I'am using "playbin" to play media file, but It have some ugly 
> seeking. Where I can't find some info on how to make good seeking (event 
> by frames)?
>
> 3) How to extract subtitles from OGG files? I need It for my program 
> (editor).
>
> Maxim.
>
> P.S.  My program written in Python.
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