Latest Dirac (schrodinger) release is really fast

I thought I should let people know that they really should grab latest version of the Schrodinger encoder/decoder from diracvideo.org. If you saw David Schleefs blogpost about Dirac you would have seen him mentioning it is much faster.

Having tested with GStreamer I can confirm that it is the case, it is really fast now, and CPU usage which used to be the achilles heal of Dirac doesn’t seem to be an issue now. Be sure to also grab gst-plugins-base 0.10.28 too though, as it contains a critical fix for playing back Dirac in Ogg containers.

GStreamer on Windows

While GStreamer has been working on Windows for a long time and one can compile GStreamer using Visual Studio, the lack of pre-made binaries for Windows developers has been a bit of an issue. Various groups and people have tried providing windows binaries for a while, but most efforts have stalled after a short while. The GStreamer winbuilds project however seems quite solid however and have now been doing good windows packages for quite a while. If you have been looking for Windows builds for GStreamer this is a good place to start. They already have a list of users on Windows and the reason I became aware is that the jokosher guys are using it for their windows porting effort.

Google and Open Video

Been following the news and discussion about Google and their recent acquisition of on2. For those who doesn’t know On2 is a codec company that created such codecs as VP3 (which become Theora) and VP6 which became Flash video. Their latest codec is VP8 which they claim is comparable to H264 in terms of quality.

The big question of course is what Google plans on doing with On2 and the codec acquired. I guess there are two likely routes Google could be going. One is to try to create some kind of vendor lock in with Youtube offering higher quality video using VP8 for Google clients like Android and Chrome. The other is that they want to remove the dependency on proprietary video formats on the web and will thus release VP8 as open source in a similar vein to Theora and Dirac. If they combine that with youtube offering high quality HTML5 videos in VP8 combined with ensuring that Firefox and Opera supporting the format in addition to Chrome then it could be a big move. Silvia Pfeiffer got some good thoughts and comments on the subject in her blog, including interesting comments from Monty and former On2 employee Dan.

From a Collabora Multimedia viewpoint we would of course love to add support for liberated On2 codecs in GStreamer, so if anyone from Google is reading this, just know that we would happily help you implement the needed GStreamer plugin code to get these codecs supported in GStreamer and the linux desktop.

Norwegian Fenalår

I always try to bring some Norwegian food back with me when I have visited Norway. This year I brought a leg of Fenalår which is a leg of cured mutton. So it is just like the cured ham people eat all over Europe, except from being made from sheep. Anyway I brought it to the Collabora office today to let people have a taste and Marco snapped this picture of me holding the leg.

Of course not all scandinavian food is equally appreciated by our southern neighbours.

N900 arrival

Collabora has been part of developing Maemo from early on and of course been part of Nokia’s effort to use Maemo in their first linux based phone, the N900. To celebrate our involvement and due to the fact that it is a kick ass phone, it was decided that everyone in the company should get one. Today the first batch of 49 phones arrived in the office and we had a little unpacking ceremony as seen in the picture below:

Stack of freshly arrived N900 phones

Stack of freshly arrived N900 phones

Much rejoicing is being had :)

Mobile linux and the desktop

Edward pointed my to this blog today which brought up a point I myself have been making in regards to Android. I spoke to several people at the CE Linux meeting a couple of weeks ago about this for one. To quote from the blog:

Android is an island of its own, and useful code sharing is largely limited to the kernel.

At Collabora Multimedia we are currently working with both Maemo and Android systems and while I can see the appeal of Android from a phone makers perspective I can’t help but be a little saddened by how worthless it is to the general linux eco-system. One of the things I always loved about Nokia’s Maemo effort is that since its using so many of the standard components that we use on the Linux Desktop, it means that when a feature is added or a bug is fixed in Maemo, it directly helps also the linux desktop. Nokia and Maemo has had a strong and direct impact on a lot of open source projects, ranging from GStreamer, D-bus, GTK+, Telepathy, Matchbox, X Window System and more. And Nokia’s work on Qt going forward will of course have a direct impact on the quality of KDE.

Android on the other side has a much more marginal impact. I know they have contributed some patches to Webkit, but apart from that they offer little value to the rest of the linux eco-system. Been even told by some kernel developers that an Android kernel driver is about as immediately useful for the mainstream kernel as a FreeBSD or OpenSolaris driver. Meaning that porting is needed.

So for me personally I can’t help but feel a lot more positive about Maemo (or Moblin for that matter as they too share the same kind of philosophy as Maemo) and getting a N900 is definitely on my TODO list. That said Android is a work in progress and hopefully we can get them to abandon their essentially proprietary stack going forward and instead incorporate more and more shared libraries with the server and desktop. Maemo has proved that for a smartphone these libraries works just as well as Googles homebrew. Some of the efforts we are involved with are pushing in that direction and hopefully Google will realize that the secret to the success of open source is synergy.

Welcoming new team members to Collabora Multimedia

We have recently added 3 new members to our growing Multimedia team and GStreamer consulting business. The first one onboard was Thiago Sousa Santos who I think many of you probably already know as he has been a regular GStreamer contributor for the last few years. He also wrote some important plugins for GStreamer as part of the last two Google Summer of Code projects, namely the Quicktime/MP4/3GPP muxer for GStreamer and this year the ASF muxer and ASF RTP payloader. Having been so impressed with his work as part of the community over the last few years we made sure to snatch him up as soon as he graduated from University :)

The second person we added to our team was Robert Swain. He might not be familiar to people following GStreamer or GNOME, but he has been an active contributor to the ffmpeg project, working for instance on improving the AAC support in ffmpeg. A lot of the work we do at Collabora Multimedia is of course low level multimedia handling and optimisations and Robert will strengthen our capabilities in that field. Also with his experience with ffmpeg we can hopefully use his knowledge to improve the GStreamer ffmpeg plugin where possible.

And finally we have Arun Raghavan, who will be joining us next Month. Arun comes to us recommended by Pulse Audio maintainer Lennart Poettering and will be part of our effort to officially support the Pulse Audio sound server as part of our portfolio of open source projects we offer expertise and consulting services around. Wim Taymans have been moonlighting a bit as a pulse audio developer over the last year, but with Arun on the team we now have a person dedicated to Pulse Audio development, making sure Pulse Audio works great for our customers on their embedded systems. We also hope his efforts will pay dividends for Pulse Audio users on the desktop too in terms of more features and better stability. The synergy we are able to create between the embedded world and the desktop is part of our core mission here at Collabora and with Arun on the team we hope to continue and deepen the great working relationship we have established with Lennart. As a sidenote Arun comes to us from NVidia so maybe we can even have him help improve the GStreamer vdpau plugins :)

Speaking of synergies between embedded and desktop work, I hope everyone read Guillaume Desmottes blog post about Collabora’s increased effort behind the Empathy chat,VoIP and video conferencing client

Returning home from CE Linux Europe

Its been an interesting week here Grenoble, been talking with a lot of people about linux on consumer electronics in general, but also of course about the GStreamer consulting we offer at Collabora Multimedia. It is also always encouraging to see the number of people at an event like this who already have heard about Collabora, be it in conjunction with GStreamer or Telepthay or Webkit or any of the other projects we either have the lead on or are contributing heavily or been told about us by an existing customer.

We ended up having a very nice conference dinner yesterday evening at one of the restaurants on top of the mountain travelling there by cable car.

Getting ready to start my journey back home now, and while I have to say Grenoble has made a very positive impression on me, I am looking forward to getting home to Cambridge.

At CE Linux in Grenoble

I am currently in the town of Grenoble in France, attending the CE Linux conference. Or rather the official conference starts tomorrow, so today I am attending a workshop hosted by ST Ericsson talking about their open source effort around the Nomadik platform, more specfically the NHK-15 platform. Looks like a very interesting piece of kit and I also got a nice development board to take home. Met a few known faces already here, for instance Dave Neary is also attending the workshop today, but I am sure there will be more people when the official conference kicks of tomorrow.

Anyway, if anyone else are attending CE Linux and want to talk about Collabora, GStreamer, Telepathy, PulseAudio and so on, be sure to look me up.

I also noticed that I tend to try to speak Spanish to everyone here. Not sure why, but I guess my mind on some level assume that they might have a better chance to guess what I mean if I speak Spanish and they only speak French. Or maybe its because my new housemate, Abigail, is Spanish, so due to speaking with her my mind is now tuned to jump to trying to use Spanish words :)

Transmageddon 0.14 released

Pushed out a new release of Transmageddon today. It is mostly
about fixing bugs and trying to make things more robust. But I also added the PSP and Google G1 profiles to this release.
Remuxing should be more robust now and if it lacks the plugins it needs it will let you know and let you choose something else instead.

My next step is going to be to combine the device profiles with remuxing, so that if the device you are targeting supports
for instance the audio and/or video format used in the incoming media Transmageddon will just remux it instead of decode and re-encode it. Should eventually in combination with a AC3 parser plugin enable you to just remux Matroska files with H264 and AC3 audio to MPEG TS when you choose the PS3 profile to get a playable file. Only problem there of course is the bitrate requirements of AC3 when used in MPEG TS on the PS3.