Re: [Server-devel] KA Lite videos compress to ~41% of their original size (by Reno McKenzie)

[Sean DALY]

Hi Adam

May I ask why you went with 720x406 resolution?

I reproduced your good results with ffmepg, however with the following
2-pass commandline I was able to shave off an additional 9-10% filesize by
collapsing the audio to mono (I also used 640x360 resolution but this tweak
has only small impact on the filesize)

$ ffmpeg -y -hide_banner -i 5HMMfiyszjo.mp4 -ac 1 -b:a 40k -c:v libx264
-profile:v baseline -level 3.0 -vf "scale=640x360" -r 15 -b:v 10k -maxrate
15k -bufsize 512k -pass 1 -f mp4 /dev/null && ffmpeg -y -hide_banner -i
5HMMfiyszjo.mp4 -ac 1 -b:a 40k -c:v libx264 -profile:v baseline -level 3.0
-vf "scale=640x360" -r 15 -b:v 10k -maxrate 15k -bufsize 512k -pass 2 -f
mp4 5HMMfiyszjo.compress.mp4


Sean

P.S. I'm living in NYC now


On Tue, May 30, 2017 at 2:19 PM, Adam Holt  wrote:

> Can folks plz evaluate the quality of those videos on the left, compared
> to the originals on the right?  Note that he/we did not compress the audio
> channel, which should remain in very high quality stereo for now.  We've
> begun by translating KA Lite's 8732 English videos, most all of which (I
> believe!) originate from Khan Academy itself -- making tight compression
> attractive in several communities that use SD Cards rather than hard disk
> drives for their digital libraries (despite the tradeoffs you will see
> below!)
>
> Constructive criticism would be really great, as this is progressing fast,
> and QA is *always* the hardest part.  e.g. What specific flaws do you see
> in any video on the LEFT, that are simply unacceptable??  Some lossiness
> (degradation) cannot be avoided of course!  Still, teacher's "fieldback"
> would be especially interesting here (even as new many usage patterns are
> evolving on small/mobile screens, outside of schools especially!!) as I
> noticed widely varying compression rate across the board, across the 1st 10
> videos compressed he compressed here:
>
>1. 5HMMfiyszjo.mp4
> is 38.7% of
>6.9M 5HMMfiyszjo.mp4
>
>2. 91wF7Ef_k8Y.mp4
> is 26.6% of 17M
>91wF7Ef_k8Y.mp4 
>3. DNoDJlB0ygU.mp4
> is 54.2% of
>2.8M DNoDJlB0ygU.mp4
>
>4. KNklNvGof8o.mp4
> is 29.0% of 15M
>KNklNvGof8o.mp4 
>5. LDyMYyiAsQs.mp4
> is 93.8% of
>8.4M LDyMYyiAsQs.mp4
>
>6. bcCLKACsYJ0.mp4
> is 49.5% of
>6.1M bcCLKACsYJ0.mp4
>
>7. do8WhQaAyso.mp4
> is is 33.5% of
>25M do8WhQaAyso.mp4
>
>8. iPROoc_o0p8.mp4
> is 32.7% of 10M
>iPROoc_o0p8.mp4 
>9. kkrF9X6Fycg.mp4
> is 40.0% of
>3.5M kkrF9X6Fycg.mp4
>
>10. meibWcbGqt4.mp4
> is 55.2% of 13M
>meibWcbGqt4.mp4 
>
> AVG: compressed file is 41.0% of ORIGINAL, suggesting the 236GB of English
> total may end up around 97GB, perfect (if the quality suffices!)
>
> Thanks All !!
>
> Challenge: if you do have a chance to express your feedback after viewing
> several of the videos (new ones, on the LEFT) please also try your device
> in landscape mode vs. portrait mode ...to see if that makes any difference
> to the perceived quality/experience of the vid?!
>
>
> PS long-term we're aware a further transcoding to WebM and/or OGV is also
> necessary for compatibility on XO laptops and truly free OS's everywhere,
> as such Emmanuel Engelhart (founder of Kiwix.org) may in fact be assisting
> us+all here in coming months (:
>
> ___
> Server-devel mailing list
> Server-devel@lists.laptop.org
> http://lists.laptop.org/listinfo/server-devel
>
>
___
Server-devel mailing list
Server-devel@lists.laptop.org
http://lists.laptop.org/listinfo/server-devel

Re: [Sugar-devel] different perspectives

[Sean DALY]

On Fri, Nov 8, 2013 at 1:56 AM, David Farning
dfarn...@activitycentral.comwrote:

 The highest rate of progress happens when the parties focus on getting
 ahead of the other guys rather then when they focus on holding others
 back. Progress tends to stop when one party gets so far ahead that it
 is not worth it for others to compete.



I don't disagree, but I would qualify that: The highest rate of progress
happens when the parties focus on getting ahead of the other guys by
changing the game. This is why I maintain that GNU/Linux distros
considering each other as competitors is pointless at the end of the day
when 92% or so of the desktop/laptop market is running MS Windows.

Sean
___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel

Re: [IAEP] [x-post] GNU Project renews focus on free software in education

[Sean DALY]

http://www.sugarlabs.org/index.php?template=pressarticle=20090918language=english#20090918

This followed uninformed misstatements in the media at the time by
some FSF members.

FSF influence on K-8 education departments is minimal, but I agree
more can always be done. We need to be in touch with Dora.

Most FSF people I know think high school or university when the topic
is educational software; e.g. FSFE edu-eu mailing list
(https://lists.gnu.org/mailman/listinfo/edu-eu)

Sean



On Wed, Feb 1, 2012 at 4:37 AM, Sridhar Dhanapalan
srid...@laptop.org.au wrote:
 Brilliant!

 What can we do to have Sugar more formally recognised by the FSF? I
 think it should be their desktop of choice for primary school
 education.

 Sridhar


 Sridhar Dhanapalan
 Engineering Manager
 One Laptop per Child Australia



 On 31 January 2012 23:28, Anish Mangal an...@activitycentral.com wrote:
 Hi,

 Just received a message on the fsf-info list about FSF relaunching the
 GNU education project:

 Links:
 [1] http://www.fsf.org/blogs/community/gnu-education-website-relaunch
 [blog post]
 [2] http://www.gnu.org/education/ [GNU Education website]

 --
 Anish


 * * *


 BOSTON, Massachusetts, USA -- Monday, January 30, 2012 -- The GNU
 Project today announced the relaunch of its worldwide volunteer-led
 effort to bring free software to educational institutions of all
 levels. The new effort is based at http://www.gnu.org/education.

 The newly formed GNU Education Team is being led by Dora Scilipoti, an
 Italian free software activist and teacher. Under her leadership, the
 Team has developed a list of specific goals to guide their work:


 Present cases of educational institutions around the world who are
 successfully using and teaching free software.

 Show examples of how free programs are being used by educational
 institutions to improve the learning and teaching processes.

 Publish articles on the various aspects involved in the use of free
 software by educational institutions.

 Maintain a dialogue with teachers, students and administrators of
 educational institutions to listen to their difficulties and provide
 support.

 Keep in contact with other groups around the world committed to the
 promotion of free software in education.

 GNU and its host organization, the Free Software Foundation (FSF),
 emphasize that free software principles are a prerequisite for any
 educational environment that uses computers:

 Educational institutions of all levels should use and teach free
 software because it is the only software that allows them to
 accomplish their essential missions: to disseminate human knowledge
 and to prepare students to be good members of their community. The
 source code and the methods of free software are part of human
 knowledge. On the contrary, proprietary software is secret, restricted
 knowledge, which is the opposite of the mission of educational
 institutions. Free software supports education, proprietary software
 forbids education.

 In an article at
 http://fsf.org/blogs/community/gnu-education-website-relaunch,
 Scilipoti adds insights about the project's organizing philosophy,
 current contributors, and progress so far. Of her basic motivation for
 being involved, she says, As a free software advocate and a teacher,
 I always felt that the GNU Project needed to address the subject
 specifically and in depth, for it is in the education field that its
 ethical principles find the most fertile ground for achieving the goal
 of building a better society.

 In her article, Scilipoti also highlights some of the free software
 success stories from around the world, especially Kerala, India, where
 the government has migrated over 2,600 of its public schools to free
 software.

 While the Education Team has already compiled a collection of useful
 materials, they are also looking for more volunteer contributors.
 People who want to help, or who have information about instructive
 examples of existing use of free software in schools, should contact
 educat...@gnu.org.

 Education really is one of the most fundamental areas we need to
 focus on to achieve real social change, said Free Software Foundation
 executive director John Sullivan. We need to be acknowledging and
 assisting schools that are doing the right thing, and helping those
 who aren't yet on board understand why those giveaway Microsoft
 Office, iPad, and Kindle deals aren't so great for classrooms after
 all. We're very thankful to all of the Team members for stepping up to
 meet this challenge. I hope others will be inspired by their work and
 join the effort.

 The Education Team has also been working closely with GNU's
 Translation Team to make the new materials available in as many
 languages as possible. People interested in helping with the
 translation component of the project should see the information at
 http://www.gnu.org/server/standards/README.translations.html.

 About the Free Software Foundation

 The Free Software 

Re: Replicating XO experience in a VM

[Sean DALY]

Hi Sridhar,

Tom Gilliard has done some fabulous work with VMs, see:

http://wiki.sugarlabs.org/go/Emulator_image_files

Sean


On Sun, May 15, 2011 at 4:41 PM, Sridhar Dhanapalan
srid...@laptop.org.au wrote:
 I've been investigating ways to replicate an XO's experience in a
 virtual machine (VirtualBox), so that it can be run on other computers
 without requiring an XO. Our OS is a variant of OLPC OS 10.1.3, so I'm
 trying to replicate that.

 We determined that booting the XO image directly does not work. Sugar
 on a Stick might be a good start. Drawbacks are that we would have to
 use v1 (Strawberry), and the Sugar 0.84 present in Strawberry is not
 the same as the one in the OLPC OS (a lot of changes have been made).

 My experimentation has been to install the OLPC packages (carefully
 avoiding the kernel) on top of a standard Fedora 11 install. I can get
 it to load to the Sugar name screen. If you enter a name and select
 your colours, you are prompted for them again. It does not proceed to
 the Home View.

 My method and findings are documented here:
 http://dev.laptop.org.au/projects/xo-au/wiki/Virtual_machine

 I feel that I am tantalisingly close, and I'd appreciate some
 assistance with this. I feel that a working VM solution can be of
 great benefit to the community.

 If it helps, I can put my VM image up for download and inspection.

 Thanks,
 Sridhar


 Sridhar Dhanapalan
 Technical Manager
 One Laptop per Child Australia
 M: +61 425 239 701
 E: srid...@laptop.org.au
 A: G.P.O. Box 731
      Sydney, NSW 2001
 W: www.laptop.org.au
 ___
 Devel mailing list
 Devel@lists.laptop.org
 http://lists.laptop.org/listinfo/devel

___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel

Re: Replicating XO experience in a VM

[Sean DALY]

Sridhar - only a few of those images are SoaS. The others are VMs in
other distros, or in Fedora non-SoaS. Tom could perhaps advise you in
building a VM that will closely resemble your XO build.

Sean


On Mon, May 16, 2011 at 4:03 PM, Sridhar Dhanapalan
srid...@laptop.org.au wrote:
 On 16 May 2011 20:30, Sean DALY sdaly...@gmail.com wrote:
 Hi Sridhar,

 Tom Gilliard has done some fabulous work with VMs, see:

 http://wiki.sugarlabs.org/go/Emulator_image_files

 Sean

 Thanks Sean. However, like I said, I'm trying to replicate an XO (OLPC
 OS) experience, not a Sugar on a Stick experience. The Sugar used in
 OLPC OS is a patched 0.84. It most closely resembles SoaS v1, but also
 has some key functionality taken from later versions of Sugar.

 Cheers,
 Sridhar

___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel

Re: [IAEP] Lego WeDo + TurtleArt - Screenshot Code!

[Sean DALY]

Hi Ian,

I have purchased a Wedo kit and installed the latest version of Turtle
Blocks-107, just one question: you mention a usb folder but at the
link below I only saw a udev folder, is that the one you mean?

Also is the best way to copy these files with the command line? Do I
need to set any permissions?

thanks

Sean


On Thu, Mar 10, 2011 at 3:19 AM, Ian Daniher it.dani...@gmail.com wrote:
 Hi All!
 I'm writing with good news. I successfully have integrated the Lego WeDo
 with TurtleArt.
 Here's a screenshot: http://itdnhr.com/static/WeDoScreen.png
 The code needed can be found in my git repo
 at https://github.com/itdaniher/WeDoMore/.
 TurtleArt specific files can be found
 at https://github.com/itdaniher/WeDoMore/tree/master/TurtleArt.
 The svg files go in the icons folder.
 The usb folder goes in the root of the TurtleArt directory.
 The file wedo_plugin.py goes in the plugins folder in the TurtleArt
 directory.
 The folder WeDoMore goes in the root of the TurtleArt directory.
 This project is not ready for primetime yet. The only semipolished code is
 the actual Python WeDoMore library. Anything and everything in my repo that
 is related to turtleart should be considered 'alpha,' that is, may cause
 your computer to spontaneously burst into flames. That being said, it works
 perfectly for me, and I could definitely use testers.
 If you feel like giving it a go, and if you find any bugs, please report
 them at https://github.com/itdaniher/WeDoMore/issues.
 Best wishes and many thanks,
 --
 Ian
 On Wed, Mar 9, 2011 at 13:17, Martin Langhoff martin.langh...@gmail.com
 wrote:

 Hi Ian!

 great to have you around! I am interested in your work with WeDo, both
 the python plugin, and the TA integration.

 For the NXT integration, the parts are

 1 - an rpm that has the udev rules
 2 - an rpm with nxt_python (python library, some utilities)
 3 - a TA plugin

 In your case, we'll probably want to use the same model for packaging.
 The rpm with the udev rules already has rules for wedo. Once your
 library code is ready for release, let me know and I'll look into
 making an rpm.

 For the TA plugin it may be a good idea to share notes with Emiliano
 -- he's doing the NXT stuff. The TA plugin will probably be shipped
 with TA once ready.

 If you can keep those tiers separate, it will be a big win. Have you
 seen the nxt_python library API? If yours is reasonably close you
 might save some effort.



 m
 --
  martin.langh...@gmail.com
  mar...@laptop.org -- Software Architect - OLPC
  - ask interesting questions
  - don't get distracted with shiny stuff  - working code first
  - http://wiki.laptop.org/go/User:Martinlanghoff


 ___
 IAEP -- It's An Education Project (not a laptop project!)
 i...@lists.sugarlabs.org
 http://lists.sugarlabs.org/listinfo/iaep

___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel

Re: Sugar Labs logo in bottom-left corner of olpc-bootanim

[Sean DALY]

Colors (and different ones every time ;-) are an integral part of the
Sugar Labs branding.

And, we specifically chose to link boot logo colors to releases for
SoaS precisely to aid everyone in identifying the versions :-)

thanks

Sean


On Wed, Apr 21, 2010 at 5:30 AM, Bernie Innocenti ber...@codewiz.org wrote:
 On Tue, 2010-04-20 at 12:00 +0200, Sean DALY wrote:
 Yay for imagemagick Bernie !

 can there be colors in the logo?

 Since everything else, including Fedora Remix logo, is rendered in a
 subtle grey scale, I thought that something colorful in the corner would
 have been a little too showy.

 If nobody is opposed, I'd also like a colorful logo to break the
 monotony of the boot sequence: the color pair would change on every
 release, helping users identify the version of Sugar running on their
 computer.

 --
   // Bernie Innocenti - http://codewiz.org/
  \X/  Sugar Labs       - http://sugarlabs.org/


___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel

Re: Sugar Labs logo in bottom-left corner of olpc-bootanim

[Sean DALY]

Yay for imagemagick Bernie !

can there be colors in the logo?

Sean


On Mon, Apr 19, 2010 at 8:35 PM, Walter Bender walter.ben...@gmail.com wrote:
 On Mon, Apr 19, 2010 at 1:52 PM, Bernie Innocenti ber...@codewiz.org wrote:
 Instead of sending a monster 900KB patch to the list, here's how I got
 the job done:

  cd images
  for i in `seq -f %02.0f 0 25`; do
        composite -gravity SouthWest sl.png frame$i.png frame$i-sl.png
        mv frame$i-sl.png frame$i.png
  done
  animate -resize 50% frame??.png

 Gimp is for wimps! :-)

 You know that you can write Scheme macros for Gimp!! :)

 -walter


 --
   // Bernie Innocenti - http://codewiz.org/
  \X/  Sugar Labs       - http://sugarlabs.org/

 ___
 Devel mailing list
 Devel@lists.laptop.org
 http://lists.laptop.org/listinfo/devel





 --
 Walter Bender
 Sugar Labs
 http://www.sugarlabs.org
 ___
 Devel mailing list
 Devel@lists.laptop.org
 http://lists.laptop.org/listinfo/devel

___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel

Re: Camera saturation - image compression level

[Sean DALY]

I had heard of dcraw
(http://www.guillermoluijk.com/tutorial/dcraw/index_en.htm) but never
used it except once (not on XO), called from imagemagick as a delegate
like this:

$ convert dcraw8:image.crw  image.png


Sean



On Thu, Dec 3, 2009 at 3:26 PM, Benjamin M. Schwartz
bmsch...@fas.harvard.edu wrote:
 Bastien wrote:
 - shots of the moon are often saturated: how to reduce the gain
   of the camera?  Ideally one would like to do this manually...

 I never figured out how to control the gain from software.

 - is there a way to take pictures with a higher resolution?  the
   default compression level doesn't produce great pictures.

 Yes, sort of.  Last year I figured out a way to capture and reconstruct
 the raw data from the camera using a higher quality demosaicing algorithm.
  The process is documented here:

 http://lists.laptop.org/pipermail/devel/2008-February/011029.html

 --Ben


 ___
 Devel mailing list
 Devel@lists.laptop.org
 http://lists.laptop.org/listinfo/devel


___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel

Re: XO-1.5 slow disk writes

[Sean DALY]

as a former audio engineer, I was surprised recently to see a unit
like the Samson R16 for sale:

http://www.samsontech.com/products/productpage.cfm?prodID=2009

which uses an SD Card as its main memory. 8 track linear PCM audio
record, 16 track playback.

Of course, it's a case of several large files not lots of little
ones... but it struck me that there must be some kind of SD r/w
optimization in a unit like that.

Sean.



On Tue, Nov 17, 2009 at 6:39 PM, Adrian Chadd adr...@squid-cache.org wrote:
 My experience with SD media in general (and I can't test it on XO
 systems; I loaned mine out to other testers for the time being) is
 that the performance is wildly varied.

 It probably doesn't help that the underlying IO is translating as
 read, erase, write in some cases for lots of sub-flash-chunk/page
 writes and how that is treated is highly device dependent.

 It may be a fun experiment (for values of fun that appeal to me at
 least) to write some direct-to-device IO tests which experiment with
 differing write and erase sizes. Say, try doing random writes of 1k
 data in 1k offsets, in 2k offsets, in 4k offsets, etc. Then try 2k
 data in the same offsets. See what changes. That may give you some
 subtle hints as to what the SD controller is doing.

 This is why the idea of buffering IO and doing up a log structured FS
 on the consumer flash devices is an interesting prospect, if difficult
 to get right. You have this massive disconnect between read and write
 IO times, you want to minimise the amount of writing you do but you
 absolutely have no issue doing a whole lot of reads.

 The actual SSD devices as far as I can gather do a variety of magic to
 try and drop the flash erase time from hurting write performance so
 much. I cant comment there with any experimental or other authority.

 HTH,


 Adrian

 (ObNote: I've been toying with small object cache stuff on commodity
 flash media lately; the above is purely from experiences with that.)

 2009/11/18 Daniel Drake d...@laptop.org:
 Hi,

 Today I tried to figure out why running sync often takes 5-10 seconds
 or longer. This slows down suspend, where all data is synced to disk.
 In all cases that I looked at, the amount of data being synced was tiny.
 One example: in one run it had 160kB data to sync and it took 7.7
 seconds. (blktrace is very handy for figuring this out)

 I traced this all the way to the SDHCI driver. These writes are
 typically small and scattered, and our hardware (or the card itself)
 takes a long time to process them. Many of the 1024 byte writes take
 500-600ms. All other disk I/O is halted during these times. The delay is
 purely after submitting the SDHCI write command, and waiting for the
 completion interrupt to arrive.

 I then wrote a C application to reproduce the exact set of writes from a
 20-second sync that I logged (using random data, but the same sectors,
 sizes and ordering) and reproduced the issue that way.

 I also moved the card over to my Dell laptop, ran the same program and
 saw the same (terrible) results.

 All info here:
 http://dev.laptop.org/ticket/9688


 So, I have a feeling that at least with today's generation of miniSD
 cards we're going to be stuck with bad write performance, particularly
 for random-style access like this.

 One experiment that would be interesting to run would be to try this on
 one of the PhoenixBIOS boards, and then try it with the exact same SD
 card on a regular XO-1.5. Just in case...

 Daniel


 ___
 Devel mailing list
 Devel@lists.laptop.org
 http://lists.laptop.org/listinfo/devel


 ___
 Devel mailing list
 Devel@lists.laptop.org
 http://lists.laptop.org/listinfo/devel

___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel

Re: [Sugar-devel] XO-2 canceled, replaced by XO-1.75 and XO-3.0

[Sean DALY]

creates lots of work for me clarifying geese, ganders and goslings for
journalists you mean ;-)

Sean


On Tue, Nov 3, 2009 at 5:34 PM, Martin Langhoff
martin.langh...@gmail.com wrote:
 Well, at least that gets the journalists off our backs and chasing a
 wild goose, so we can focus on getting XO-1.5 (and in my case XS 0.7
 work) done... :-)

 cheers,



 m

 On Tue, Nov 3, 2009 at 4:51 PM, Benjamin M. Schwartz
 bmsch...@fas.harvard.edu wrote:
 The ever entertaining Prof. Negroponte surpasses all expectations in his
 latest performance:

 http://www.xconomy.com/boston/2009/11/02/negroponte-outlines-the-future-of-olpc-hints-at-paperlike-design-for-third-generation-laptop/

 The usual OLPCNews analysis at
 http://www.olpcnews.com/people/negroponte/negroponte_xo-175_goes_arm_xo-2_is_cancelled.html

 --Ben


 ___
 Sugar-devel mailing list
 sugar-de...@lists.sugarlabs.org
 http://lists.sugarlabs.org/listinfo/sugar-devel





 --
  martin.langh...@gmail.com
  mar...@laptop.org -- School Server Architect
  - ask interesting questions
  - don't get distracted with shiny stuff  - working code first
  - http://wiki.laptop.org/go/User:Martinlanghoff
 ___
 Sugar-devel mailing list
 sugar-de...@lists.sugarlabs.org
 http://lists.sugarlabs.org/listinfo/sugar-devel

___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel

Re: os33 - video regression ?

[Sean DALY]

YouTube video can be encapsulated H.264, On2 VP6, or the older
Sorenson Spark. So it's important to try to test the same file.

H.264, the most recent addition, is very processor-intensive...

Sean


On Mon, Oct 26, 2009 at 1:33 AM, Mikus Grinbergs mi...@bga.com wrote:
 When I try to run mplayer on os33 with the parameters that I use on the
 XO-1, the XO-1.5 shows a bright green screen and locks up completely (all
 that I can do is power off).  I have to explicitly tell mplayer to use the
 'x11' driver (i.e., *no* implied acceleration) in order to see a moving
 picture in os33 with mplayer.  [IIRC, previously on os32 my mplayer with
 the XO-1 parameters had worked, but jerkily.]

 Also, though it may be a function of network congestion / source quality,
 but my impression is that with os33 YouTube is jerkier than I remember
 from os32.

 mikus


 ___
 Fedora-olpc-list mailing list
 fedora-olpc-l...@redhat.com
 https://www.redhat.com/mailman/listinfo/fedora-olpc-list

___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel

Re: Windows on the XO (was: Re: Devel Digest, Vol 41, Issue 41)

[Sean DALY]

My understanding is that although Windows is available, there have
been no sales; deployments have preferred Sugar.


On Tue, Jul 28, 2009 at 2:21 PM, Sascha
Silbesascha-ml-ui-sugar-olpc-de...@silbe.org wrote:
 On Tue, Jul 21, 2009 at 07:45:58AM -1000, Mitch Bradley wrote:

 
 For this reason, Sugar needs a wider basis, to run on more Linux
 platforms and to run under
 Windows. We have been engaged in discussions with Microsoft for several
 months, to explore a
 dual boot version of the XO. Some of you have seen what Microsoft
 developed on their own for
 the XO. It works well and now needs Sugar on top of it (so to speak).
 

 That quotation is entirely correct according to my understanding.

 Sure it is. But it omits the entire reasoning (BIOS vs. Open Firmware -
 Linux/Sugar won't work anymore) for spending OLPC resources on getting
 Windows to run on the XO-1.

 But it doesn't really matter much as Charles Kane makes it clear in todays
 interview [1] that OLPC is now actually selling XOs with Windows on them:

 
 After the success and the impact we have had [Bill Gates] would take it very
 seriously now and we have an agreement with Microsoft so we are selling
 Windows XP as part of our dual-boot offering with the computer.
 


 [1] http://www.australianit.news.com.au/story/0,24897,25843285-24169,00.html

 CU Sascha

 --
 http://sascha.silbe.org/
 http://www.infra-silbe.de/
 -BEGIN PGP SIGNATURE-
 Version: GnuPG v1.4.9 (GNU/Linux)

 iQEcBAEBAgAGBQJKbu0/AAoJELpz82VMF3DaqnoIAJzywyGX2hKRg3la1Gmdtp5b
 BGqx5xHuo3Eh5zM7jV68wK9+oLxzdpCkXZydalLJrD3yK0SWUACPtlXUYvXj3ecE
 KGrXtoLB1vNFU7WRqD2ICta30zdqgvYqMc1oa63JGYhJFSmQS6hSKI/5hoiOsPp6
 KOwV6h1/xjnCgD1GQqMC/j60jZDbCuXnFTbOUXOo5PMRed56S1XaChTnYmHXhhm6
 ze051qKVMKRoaIxm+Fpf6vwgymGCIpbY28aMZVHu4fkqihvSVpQJfG/58ME5yYv9
 9nELomLfp8vDBTksy8SWTbAh6YqPKYv8JYkL2jkfCCUsTq0vv9NZCalR4hKqVYw=
 =LPTl
 -END PGP SIGNATURE-

 ___
 Devel mailing list
 Devel@lists.laptop.org
 http://lists.laptop.org/listinfo/devel


___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel

Re: [IAEP] Fwd: An interesting project I stumbled across

[Sean DALY]

Very interesting!

I saw this too:
http://blog.wizzy.com/post/OLPC-and-Classmate-in-Nigeria

The wizzydigital.org website seems dated, is it an active project?

I couldn't find any technical information about the solution, although
it seems to be based on FOSS

Sean



On Sat, Jun 13, 2009 at 1:18 AM, Frederick Grosefgr...@gmail.com wrote:
 Forwarding to the community...

 -- Forwarded message --
 From: William Schaub
 Date: Fri, Jun 12, 2009 at 6:31 PM
 Subject: An interesting project I stumbled across
 To: Frederick Grose fgr...@gmail.com


 This looks like something that is right up the alley of the OLPC groups and
 sugar labs etc.

 http://www.wizzydigital.org/index.html

 using UUCP and memory sticks and couriers they are able to connect schools
 to the internet in areas where there is ZERO connectivity.
 ...
 However this whizzy digital courrier could be VERY successfully used on a
 classroom server or a specially outfitted XO laptop with some extra storage
 via an added USB storage device.




 ___
 IAEP -- It's An Education Project (not a laptop project!)
 i...@lists.sugarlabs.org
 http://lists.sugarlabs.org/listinfo/iaep

___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel

Re: [Server-devel] Meshnode product...

[Sean DALY]

Thanks for that Sameer

I'm sure that color scheme isn't accidental :-)

They say it's Debian-based

Simon - Do you think it would be useful or interesting to borrow one
of these for LinuxTag? Could you or someone on the sugar-devel team
possibly contact them and see if they are coming, if so (and maybe
even if not) would they be willing to loan us one? Contact info is
here: http://saxnet.de/index.php/deutsch/kontakt/buero.html

thanks

Sean


On Mon, Jun 15, 2009 at 8:15 AM, Sameer Vermasve...@sfsu.edu wrote:
 I came across MeshNode while looking for stuff on IEEE 802.11s.
 Interesting coincidence that it is colored white and green :-)

 http://www.80211s.org/ which led to
 http://saxnet.de/index.php/englisch/home.html

 Thought I'd pass this along.

 cheers,
 Sameer
 --
 Dr. Sameer Verma, Ph.D.
 Associate Professor of Information Systems
 San Francisco State University
 San Francisco CA 94132 USA
 http://verma.sfsu.edu/
 http://opensource.sfsu.edu/
 ___
 Server-devel mailing list
 Server-devel@lists.laptop.org
 http://lists.laptop.org/listinfo/server-devel

___
Server-devel mailing list
Server-devel@lists.laptop.org
http://lists.laptop.org/listinfo/server-devel

Re: [Server-devel] [IAEP] Fwd: An interesting project I stumbled across

[Sean DALY]

Very interesting!

I saw this too:
http://blog.wizzy.com/post/OLPC-and-Classmate-in-Nigeria

The wizzydigital.org website seems dated, is it an active project?

I couldn't find any technical information about the solution, although
it seems to be based on FOSS

Sean



On Sat, Jun 13, 2009 at 1:18 AM, Frederick Grosefgr...@gmail.com wrote:
 Forwarding to the community...

 -- Forwarded message --
 From: William Schaub
 Date: Fri, Jun 12, 2009 at 6:31 PM
 Subject: An interesting project I stumbled across
 To: Frederick Grose fgr...@gmail.com


 This looks like something that is right up the alley of the OLPC groups and
 sugar labs etc.

 http://www.wizzydigital.org/index.html

 using UUCP and memory sticks and couriers they are able to connect schools
 to the internet in areas where there is ZERO connectivity.
 ...
 However this whizzy digital courrier could be VERY successfully used on a
 classroom server or a specially outfitted XO laptop with some extra storage
 via an added USB storage device.




 ___
 IAEP -- It's An Education Project (not a laptop project!)
 i...@lists.sugarlabs.org
 http://lists.sugarlabs.org/listinfo/iaep

___
Server-devel mailing list
Server-devel@lists.laptop.org
http://lists.laptop.org/listinfo/server-devel

Re: [Olpc-open] Videos of XO 1.5 in Taipei

[Sean DALY]

If the rushes are in PAL DV, this may be useful:

$ ffmpeg2theora rawfootage.dv -x 352 -y 288 -v 2 -S 0 -K 128 -c 1 -H
32000 -o rawfootage.ogv

Sean


On Tue, Jun 2, 2009 at 5:32 PM, Seth Woodworth s...@isforinsects.com wrote:
 I've been emailing back and forth with Charbax, he's limited for bandwidth
 while still filming in Taipei, but he will be uploading the HD videos to
 Dailymotion tomorrow (Taipei time).  But I will be asking Sebastian about
 getting them on olpc.dailymotion.com and/or open.dailymotion.com as ogg
 videos.

 Once they are up as ogg, Charbax will post links to the ogg version in the
 descriptions on the current flash copies.

 --Sethww

 On Tue, Jun 2, 2009 at 8:08 AM, Bastien bastiengue...@googlemail.com
 wrote:

 Or maybe olpc.tv can send its videos to our contact at Dailymotion?
 They can encode it in ogg and make them available for kids at:

  http://olpc.dailymotion.com

 Don't hesitate.

 rihowa...@gmail.com rihowa...@gmail.com writes:

  It would be nice if olpc.tv used ogg vorbis.   Is there any way to get
  the
  videos of XO 1.5 in Taipei, etc. posted in a linux friendly format?   XO
  users
  are excluded from viewing material about the XO.  Where the FOSS are
  you!!
 
  In other words FOSS you..tube, use Ogg Vorbis!!

 --
  Bastien
 ___
 Devel mailing list
 Devel@lists.laptop.org
 http://lists.laptop.org/listinfo/devel


 ___
 Olpc-open mailing list
 olpc-o...@lists.laptop.org
 http://lists.laptop.org/listinfo/olpc-open


___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel

Re: [Server-devel] Fixing bash script bogosity - help?

[Sean DALY]

I'm no maven, but the last time I was dealing with quoting issues with
$* expansion I had found this article helpful:
http://www.ibm.com/developerworks/library/l-bash-parameters.html?ca=drs-

Sean


On Mon, Apr 27, 2009 at 10:37 PM, Martin Langhoff
martin.langh...@gmail.com wrote:
 Hi all,

 I have a simple shell scripting problem :-) you'll find attached a
 shell script that ships with ejabberd. It is a fairly straightforward
 bit of code, and allows us to control bits of the ejabberd internals
 with a nice cli interface. (Feel free to skip the start / stop bits of
 the code, I'm fighting with the ctrl function.)

 The problem it has is that the parameters are passed to a bash or
 runas invocation -- at which point the quoting is a mess. Currently I
 am working around it in the caller by doing some stupid
 nested-quoting. But this should be easy to cure -- if anyone knows a
 bit more bash (or portable shell!) than me :-)

 A minimal exposition of the problem is as follows:

 $ cat sample.sh
 #!/bin/bash -x

 # in the script, the CMD is built up as a string
 CMD=touch $@
 # in practice we somtimes use /sbin/runuser -c
 # and other times plain bash -c
 bash -c $CMD

 # this invokation does the wrong thing -
 $ ./sample.sh ./sample.sh this is file one this is file two
 # the ugly workaround is
 ./sample.sh 'this is file one' 'this is file two'

 Any hints that don't involve a rewrite?

 cheers,



 martin-who's-easily-stumped-with-shell-backwardnesss
 --
  martin.langh...@gmail.com
  mar...@laptop.org -- School Server Architect
  - ask interesting questions
  - don't get distracted with shiny stuff  - working code first
  - http://wiki.laptop.org/go/User:Martinlanghoff

 ___
 Server-devel mailing list
 server-de...@lists.laptop.org
 http://lists.laptop.org/listinfo/server-devel


___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel

Re: [Server-devel] Fixing bash script bogosity - help?

[Sean DALY]

I'm no maven, but the last time I was dealing with quoting issues with
$* expansion I had found this article helpful:
http://www.ibm.com/developerworks/library/l-bash-parameters.html?ca=drs-

Sean


On Mon, Apr 27, 2009 at 10:37 PM, Martin Langhoff
martin.langh...@gmail.com wrote:
 Hi all,

 I have a simple shell scripting problem :-) you'll find attached a
 shell script that ships with ejabberd. It is a fairly straightforward
 bit of code, and allows us to control bits of the ejabberd internals
 with a nice cli interface. (Feel free to skip the start / stop bits of
 the code, I'm fighting with the ctrl function.)

 The problem it has is that the parameters are passed to a bash or
 runas invocation -- at which point the quoting is a mess. Currently I
 am working around it in the caller by doing some stupid
 nested-quoting. But this should be easy to cure -- if anyone knows a
 bit more bash (or portable shell!) than me :-)

 A minimal exposition of the problem is as follows:

 $ cat sample.sh
 #!/bin/bash -x

 # in the script, the CMD is built up as a string
 CMD=touch $@
 # in practice we somtimes use /sbin/runuser -c
 # and other times plain bash -c
 bash -c $CMD

 # this invokation does the wrong thing -
 $ ./sample.sh ./sample.sh this is file one this is file two
 # the ugly workaround is
 ./sample.sh 'this is file one' 'this is file two'

 Any hints that don't involve a rewrite?

 cheers,



 martin-who's-easily-stumped-with-shell-backwardnesss
 --
  martin.langh...@gmail.com
  mar...@laptop.org -- School Server Architect
  - ask interesting questions
  - don't get distracted with shiny stuff  - working code first
  - http://wiki.laptop.org/go/User:Martinlanghoff

 ___
 Server-devel mailing list
 Server-devel@lists.laptop.org
 http://lists.laptop.org/listinfo/server-devel


___
Server-devel mailing list
Server-devel@lists.laptop.org
http://lists.laptop.org/listinfo/server-devel

Re: [Sugar-devel] Bxl testing report - April 16th

[Sean DALY]

Martin - I'm in Brussels and have 6 XOs, assorted netbooks (Asus/Acer)
and an Olidata JumPc Classmate next time you wish to test SoaS

thanks

Sean
Sugar Labs Marketing Coordinator


On Fri, Apr 17, 2009 at 12:45 PM, Martin Langhoff
martin.langh...@gmail.com wrote:
 Yesterday we had the 2nd meeting in Brussels -- this time at a Swedish
 trade representation office, thanks to our kind hosts for the place
 and connectivity.

 The first meeting was mainly social, a bit of getting to know people
 and going through the 1hr smoketest on XOs running 8.2.1 -- a good
 first encounter with software that has already been QAd. This is how
 it looks when it works :-)

 On this second meeting we had a chance to play with SoaS on 2 OTS
 laptops, as well as one XO, alongside 8.2.1 on about 10 XOs. It took a
 while to get started -- the booting issues that Caroline mentions are
 real, and many laptops are picky on what they boot.

 Version: Soas2-200904161412.iso

 Highlights:

  - Sound works well! TamTamJam worked pretty well on the Dell Vostro
 1500 tested.

  - Pippy (behaved identically on both laptops tested)
   - Sound playing was mixed -- Sequence and and Playsine work.
 Playwave and Getsoundslist are broken.
   - Pong is broken, apparently due to sound.
   - 'Thanks' is broken -- I suspect that the code is building a
 2-dimensional table that is smaller than what size() returns.

  - XOs running 8.2.1 (alongside the SoaS test machines) were happily
 running Salut (over a local AP) -- and the question of the day was:
 how can we get SoaS to switch to Salut?

  - XOs running 8.2.1 and Chat.xo had a lot of situations where a given
 machine would be in a chatroom but fail to see everyone else's
 messages. We developed a suspicion that it might be related to
 different language settings on the various machines, but we could not
 repro the problem. Is this known? There are no references to this on
 http://dev.laptop.org/query?status=assignedstatus=newstatus=reopenedcomponent=chat-activityorder=prioritycol=idcol=summarycol=statuscol=typecol=prioritycol=milestonecol=component

  - SoaS on the XO booted, but I don't have any further notes on this
 -- it was running off a USB stick with a compressed Squashfs partition
 -- not the best setup, and it was conversely slow. My plan is to get
 one or two XOs with a properly installed Soas image _and_ an XO
 kernel.

  - There is no Record.xo ?

  - Alex and Daniel were playing also with httpd-crcsync --
 http://wiki.laptop.org/go/Apache_Proxy_CRCsync

 Machines tested

  - Dell Vostro 1500
   lspci?

  - HP Pavillion DV 9000
  lspci:
 00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory
 Controller Hub (rev 0c)
 00:01.0 PCI bridge: Intel Corporation Mobile PM965/GM965/GL960 PCI
 Express Root Port (rev 0c)
 00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB
 UHCI Controller #4 (rev 03)
 00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB
 UHCI Controller #5 (rev 03)
 00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2
 EHCI Controller #2 (rev 03)
 00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio
 Controller (rev 03)
 00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express
 Port 1 (rev 03)
 00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express
 Port 2 (rev 03)
 00:1c.5 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express
 Port 6 (rev 03)
 00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB
 UHCI Controller #1 (rev 03)
 00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB
 UHCI Controller #2 (rev 03)
 00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB
 UHCI Controller #3 (rev 03)
 00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2
 EHCI Controller #1 (rev 03)
 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3)
 00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface
 Controller (rev 03)
 00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E)
 IDE Controller (rev 03)
 00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM
 (ICH8M/ICH8M-E) SATA AHCI Controller (rev 03)
 00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 
 03)
 01:00.0 VGA compatible controller: nVidia Corporation GeForce 8600M GS (rev 
 a1)
 02:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or
 AGN [Kedron] Network Connection (rev 61)
 06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
 RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)
 07:09.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 
 05)
 07:09.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro
 Host Adapter (rev 22)
 07:09.2 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev 12)
 07:09.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host
 Adapter (rev 12)
 07:09.4 System peripheral: Ricoh Co Ltd 

Re: [Sugar-devel] [IAEP] [ANNOUNCE] Sucrose 0.84.0 Final Release

[Sean DALY]

re spreading the word:

http://lists.sugarlabs.org/archive/marketing/2009-March/000419.html

Monday, March 16th, 9:00 AM EST

thanks
Sean


On Thu, Mar 5, 2009 at 3:31 PM, Sean DALY sdaly...@gmail.com wrote:
 The media launch and multi-language press release has been scheduled
 for March 16th, when release notes, the PR phone number, and the final
 press mailing lists including the education publications will be
 ready.

 I will have Tuesday's marketing meeting topics  deliverables mail
 ready sometime today, meanwhile:
 http://sugarlabs.org/go/MarketingTeam/Meetings/03-03-2009

 Please, don't spread the word without coordinating with the marketing
 team, we don't even have the PR phone numbers set up and our impact
 will be maximized if we can stay coordinated.

 Thanks

 Sean
 Marketing Coordinator



 On Thu, Mar 5, 2009 at 2:52 PM, Ed McNierney e...@laptop.org wrote:
 Congratulations to everyone - very nice job!

        - Ed


 On Mar 5, 2009, at 5:26 AM, Simon Schampijer wrote:

 Bernie Innocenti wrote:
 On 03/05/09 10:56, Tomeu Vizoso wrote:
 So, how are we going to celebrate it? As 0.84.1 is going to be on,
 we
 could do a bug fix sprint during a weekend.

 Should we get the marketing team to prepare a press release?

 Did we announce it on Freshmeat?  Slashdot?  LWN?  OLPCNews?

 The marketing team is already working on it. 2 things I think are
 left.
 Good release notes and a well enough working Soas for people to try
 out.
 Both will be available in the next days - at least that is the plan.

 Cheers,
    Simon

 ___
 Devel mailing list
 Devel@lists.laptop.org
 http://lists.laptop.org/listinfo/devel

 ___
 Sugar-devel mailing list
 sugar-de...@lists.sugarlabs.org
 http://lists.sugarlabs.org/listinfo/sugar-devel


___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel

Re: [Sugar-devel] [IAEP] [ANNOUNCE] Sucrose 0.84.0 Final Release

[Sean DALY]

The media launch and multi-language press release has been scheduled
for March 16th, when release notes, the PR phone number, and the final
press mailing lists including the education publications will be
ready.

I will have Tuesday's marketing meeting topics  deliverables mail
ready sometime today, meanwhile:
http://sugarlabs.org/go/MarketingTeam/Meetings/03-03-2009

Please, don't spread the word without coordinating with the marketing
team, we don't even have the PR phone numbers set up and our impact
will be maximized if we can stay coordinated.

Thanks

Sean
Marketing Coordinator



On Thu, Mar 5, 2009 at 2:52 PM, Ed McNierney e...@laptop.org wrote:
 Congratulations to everyone - very nice job!

        - Ed


 On Mar 5, 2009, at 5:26 AM, Simon Schampijer wrote:

 Bernie Innocenti wrote:
 On 03/05/09 10:56, Tomeu Vizoso wrote:
 So, how are we going to celebrate it? As 0.84.1 is going to be on,
 we
 could do a bug fix sprint during a weekend.

 Should we get the marketing team to prepare a press release?

 Did we announce it on Freshmeat?  Slashdot?  LWN?  OLPCNews?

 The marketing team is already working on it. 2 things I think are
 left.
 Good release notes and a well enough working Soas for people to try
 out.
 Both will be available in the next days - at least that is the plan.

 Cheers,
    Simon

 ___
 Devel mailing list
 Devel@lists.laptop.org
 http://lists.laptop.org/listinfo/devel

 ___
 Sugar-devel mailing list
 sugar-de...@lists.sugarlabs.org
 http://lists.sugarlabs.org/listinfo/sugar-devel

___
Devel mailing list
Devel@lists.laptop.org
http://lists.laptop.org/listinfo/devel