Linked by Eugenia Loli on Wed 17th Sep 2008 23:09 UTC
Multimedia, AV Dirac is an advanced royalty-free video compression format designed for a wide range of uses, from delivering low-resolution web content to broadcasting HD and beyond, to near-lossless studio editing. The v1.0.0 version was released yesterday, and the new VLC version supports playback of .ts/.drc Dirac files.
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RE: Schrodinger
by Eugenia on Wed 17th Sep 2008 23:45 UTC in reply to "Schrodinger"
Eugenia
Member since:
2005-06-28

Well, looking for this implementation I can only find source code. I don't think that my Ubuntu's Gstreamer comes with it, or the command line encoder, and I can't find any info about your GUI either by searching online.

More over, there is no encoder for Video for Windows, so it's impossible for me to edit something on Sony Vegas and export to Dirac. When a codec that's supposed to be so important is released, it better have some Windows encoding support.

And you say that there's an encoder somewhere. Where can I find docs about how to use it?

Reply Parent Score: 1

RE[2]: Schrodinger
by tristan on Thu 18th Sep 2008 00:23 in reply to "RE: Schrodinger"
tristan Member since:
2006-02-01

Well, looking for this implementation I can only find source code. I don't think that my Ubuntu's Gstreamer comes with it, or the command line encoder, and I can't find any info about your GUI either by searching online.


The package is gstreamer0.10-schroedinger, or something very similar to that. It's definitely in Ubuntu Gutsy, though I can't remember what version. Debian, Fedora, Gentoo etc have the latest version as far as I know.

After installing this, command-line encoding/transcoding can be done via GStreamer's gst-launch syntax, though I appreciate that this is only "easy" if you already know how gst-launch works.

More over, there is no encoder for Video for Windows, so it's impossible for me to edit something on Sony Vegas and export to Dirac. When a codec that's supposed to be so important is released, it better have some Windows encoding support.


They do seem to be lacking Windows binaries, which is probably something they should fix. There do seem to be DirectShow filters available though, once you've got it compiled.

And you say that there's an encoder somewhere. Where can I find docs about how to use it?


The wiki on diracvideo.org is the main source of info at the moment it seems. For example,

http://diracvideo.org/wiki/index.php/Schroedinger_Encoder_Parameter...

gives a list of all the different settings for the Schroedinger encoder. There's also a (somewhat over-complicated IMHO) guide to encoding Big Buck Bunny into Dirac from the source PNGs, at

http://www.diracvideo.org/wiki/index.php/Encode_Big_Buck_Bunny

Please be more careful of what you write [you edited that out now]. I DID include the link to Dirac's site. It's the first word in the article.


You did, and I apologise. I thought I'd changed it back quickly enough when I realised my mistake, but apparently not ;)


EDIT: Ach. I meant Ubuntu Hardy, not Gutsy. Or 8.04, anyway. Stupid code names.

Edited 2008-09-18 00:27 UTC

Reply Parent Score: 8

RE[3]: Schrodinger
by Eugenia on Thu 18th Sep 2008 00:51 in reply to "RE[2]: Schrodinger"
Eugenia Member since:
2005-06-28

After installing this, command-line encoding/transcoding can be done via GStreamer's gst-launch syntax, though I appreciate that this is only "easy" if you already know how gst-launch works.


GSt's encoding syntax is a nightmare, it almost doesn't make sense. I personally feel more at home with ffmpeg, but mencoder is manageable too if you are willing to spend the time to test stuff.

They do seem to be lacking Windows binaries, which is probably something they should fix. There do seem to be DirectShow filters available though, once you've got it compiled.


I have no compiler on Windows, and I have no compiler on ubuntu either (which is the reason why I moved from Arch and Gentoo to Ubuntu: so I won't have to deal with that anymore.)

What I have, is a perfectly compatible Video for Windows-compliant $500 video editor that I want to use. BBC needs to decide if they want to stay researchers or to offer a production solution. I know that they might be waiting for Adobe or MainConcept or Sony to step up and create these tools, but honestly, with h.264 for delivery and Cineform for intermediate needs this is not realistic. BBC needs to offer the full solution to be relevant in today's video world.

There's also a (somewhat over-complicated IMHO) guide to encoding Big Buck Bunny into Dirac from the source PNGs


I saw that and it's overkill. Plus, I don't remember the last time Steven Spielberg used... PNGs to create a video. Anyways, there should have been a tutorial about how to use it in ffmpeg which is easier. And if possible, to also offer an ffmpeg binary with dirac compiled in.

Reply Parent Score: 1