Extension Manager

2006-08-01 10:36 UTC by timeless

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Extension Manager Extension Manager

I'm sure that the Addons Manager is better. But sometimes I'm an end user. Extension Manager from Firefox 1.5 with my extensions

Take a look at this picture and study it for a bit. Pretend you're an end user an answer these questions:

What ordering scheme is it using for this list?

I have no idea.

If you don't like this question, let me try again. Pretend you're an end user and you're looking for an extension and you know its name.

How would you find the XHML Mobile Profile extension in this list?

Because of the fact that I can't figure out the ordering scheme, it looks like I'm going to have to read all of them.

How would you find all extensions relating to CSS?

Hrm, looks like you're going to have to read each of:

The name
The contract (for all you know it's css@vendor and the name and description don't have css).
The description
The ICON!

For a moment, pretend you're blind (if this isn't politically correct, contact me with alternate wording).

Is it at all possible for you to find all the CSS related extensions?

I believe the answer is no. :(, I'm sorry.

Are you sure you don't have to read the version field too?

Nope, I'm not at all sure given that there seems to be quite a lot of diversity among the version fields.

Are any of these extensions in unusual states?

As it happens, two of them are, but I'm not sure anyone could easily figure it out. I'll ask some people and see.

Why is the window so wide?

I'm glad you asked. If I didn't make it wider, you couldn't see all the text for one of those rows.

Whose fault is that?

Well, you could claim that the author wrote a bad description. But people prefer to complain about firefox not behaving well when outragious things happen.

What version am I runnning?

You mean you can't tell?

I guess you can't, heh. This is Firefox 1.5.0.5 Official. I'd make a picture but the last time i tried to do that, the results weren't particularly stunning.

What does the extension manager normally look like?

Fairly normal window size of Extension Manager

Tuner tool for Nokia 770

2006-08-01 12:26 UTC by Unknown author

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This is a new tool for our versatile Nokia 770. I wrote this artifact mainly as an introductory mini project to GStreamer.

Basically it consists on a GStreamer plugin based on KISS FFT library to perform a fourier transform on a signal and extract fundamental frequency.

On top of the plugin I wrote this small GUI for Nokia 770 that build a GStreamer pipeline between microphone and gstkissfft component.

I'm spending holiday on the beach these days and I couldn't test it with a real instrument, any comment will be appreciated.

Binary for IT2006
Source

Tuner tool version 0.0.2

2006-08-02 18:01 UTC by Unknown author

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Hi friends,

This is a new version of my tuner tool project for Nokia 770. As you can see on the screenshoot I added a piano keyboard to generate reference tones.

I want to thanks people on IRC channel #gstreamer who helped me with this project. In particular to ensonic for their ideas about how solve some bugs.

Binary for IT2006
Source

All in one

2006-08-06 16:11 UTC by ulissesf

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Yeah, I can hear you saying I should do one post for each one of the things I’ll comment here, but… I think it’s too late for that. :-)

Well, first of all, OLS was really fun. Meeting people, seeing some of the most famous persons like Alan Cox and Andrew Morton and getting to know what are the trends in Linux kernel development now was great. I can say that new file systems, virtualization and power management were the main topics. I’ve also met Iñaky Pérez-González and we’ve talked about contributing code to the UWB project. Let’s see if we can work that out. :-)

OLS itself was great, but going to Ottawa and coming back home turned out to be really painful. We missed a flight on our way to Ottawa and arrived there only 28 hours after we left Recife. However, coming back home was even worse. It took us 48 hours to come back home because United Airlines screwed us badly by overbooking our connection in Washington. Since they have only two flights to Brazil, we had to wait a whole day to fly to Sao Paulo. But this wasn’t enough for United, we weren’t confirmed for the next flight, we’re only waitlisted and that meant we could stay another day in Washington! This was really disrespectful. Arriving in Sao Paulo was another nightmare, because we’ve already lost our connection there (of course) and had to wait several hours to fly to Recife. After all this drama we’ve managed to get back home safe. United sucked big time. Grrrr…

Going to OLS was really good and now I have lots of things to do for BlueZ (thanks to Marcel Holtmann :-) and lots of ideas related to virtualization. I’m thankful that INdT sent me there. It’s time to work hard now..

I think it’s nice to travel but coming back home is even better! I really missed Dotty (my beautiful girl and future wife :-) while I was in Ottawa. Maybe we can go there together some other time.. :-)

Categories: BlueZ

Linksys WRT54GS and OpenWRT

2006-08-07 23:17 UTC by ulissesf

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I’ve recently bought a Linksys WRT54GS v4 wireless router and installed OpenWRT last saturday. OpenWRT is really neat and its web interface does exactly what you want. Another point worth mentioning is that ipkg seems to work flawlessly (so far). It’s nice to see projects like this one because we can see that Linux supports more hardware than anyone else (Greg KH is just right) and we can make very good GNU/Linux systems to fit whatever our needs are. Cool!

Categories: Internet

Nice GLPK and Linear Programming article

2006-08-14 14:17 UTC by ulissesf

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If you ever wanted to know more about linear programming and how to use GLPK go check this article written by Rodrigo Ceron! He carefully explains some theory on linear programming and how to use GLPK to solve problems. I must say that linear and integer programming are very interesting topics. I should find some time to study these areas a little bit more. This article reminded me of PuLP, a nice linear programming modeler for Python that can use GLPK as its underlying solver.

Update: another GLPK article by Rodrigo Ceron! Go check it out!

Categories: Optimization

On holidays and tuner tool

2006-08-17 12:12 UTC by Unknown author

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Hi friends,

I'm on holidays this days and I've restricted access to my computer, my wife don't let me play on it until September :)

During first week on September I believe that I'll be able to do some improvements on the tuner tool that has been suggested to me on comments and by mail.

This is a summary about the changes that I plan to do:

- Enlarge the text that reports the tone played as Tor-björn asked for.
- Add an autoplay func for guitar notes: "Play the six guitar strings in sequence, allow each string/tone to play for a configurable length of time, then play the next string/tone, ie: e-e-e-e-e a-a-a-a-a d-d-d-d-d g-g-g-g b-b-b-b-b e-e-e-e repeat" as Chris Warren-Smith suggested.
- Add a pair of buttons to let change octaves on the piano func.

About how improve the FFT and add better sensivity under 400 hz frequencies, I'm reallyy novice in this area and mainly I began this project as way to learn about gstreamer and N770 multimedia API. I chosen KISS FFT lib because it's easy to use and fourier transform can be calculated using fixed point integers, that's good for N770 which haven't FPU. If someone has a good idea about which improvements can be done on this area I'm able to write the code and testing it but by now I have a lack of info about what should be done.

Sometimes I'm in IRC channels at freenode, #maemo and #gstreamer, with nick ArthurDentN770 we can talk about if you want.

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