If you need to edit Ogg Theora in the compressed domain, there seem to be a few tools around from Fluendo.

There is a remuxer that uses the latest gstreamer core and base releases.

Also, Pitivi does editing of theora, alas by decoding and re-encoding at the moment. It is based on Gnonlin.

Here are some pretty sloppy scripts for converting DV to OGG Theora format. No this is not an OGG container for DV.

http://filmapart.blogspot.com/2006/07/batch-transcode-dv-to-ogg-theora.html

Chris Ford implemented Anode, which allows the Acidfree Drupal module to manage Annodexes using phpannodex. Acidfree is a module written by Vernon Maurey for managing digital photos and videos.

Anode stores information about CMML clips in the Drupal database, and then inserts them into Ogg Theora files on a browser's request to create Annodexes. Authorized users are able to edit or add new clips.

Conrad Parker implemented an irc bot that records irc conversations directly to CMML files using pyannodex.

Annodex is an Ogg file container with a Skeleton description track, a CMML annotation track, and audio-visual tracks of e.g. Vorbis, Theora, Speex. The audio-visual and annotation tracks are multiplexed (temporally interleaved).

Multiple annotation tracks (CMML) and multiple audio-visual tracks are also possible, though there have no

Annodex bitstreams are authored by interleaving CMML and audio-visual bitstreams into one multiplexed Ogg container. The multiplexing process is exemplified in the following picture with an Ogg Theora file.

The only video codec supported in the Annodex transport format is Ogg Theora.

The only audio codecs supported in the Annodex transport format are

• Ogg Vorbis and
• Ogg Speex

.

You can create Ogg Theora from most other existing video formats by using

• ffmpeg2theora or
• mplayer or
• gstreamer

CMML is an XML markup language and can therefore be authored in any text editor. An example file and instructions can be found here.

To check and fix files, use the cmml-validate and cmml-fix command-line tools out of libcmml.

Use anxenc to author Annodex content on the command-line from a CMML and Ogg Theora or Ogg Vorbis file. Reference the media file in the stream tag of the CMML file. Then call the tool:

anxenc -t text/x-cmml file.cmml

anxenc is part of the tools of libannodex.