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by bbb
Sun Jul 08, 2012 4:16 pm
Forum: Advanced users
Topic: MPEG-2 Decoding
Replies: 230
Views: 88795

Re: MPEG-2 Decoding

Well, I have ripped out a mp2 audio track from a DVB-S recording (in the UK - freesat..). Even after fixing video and audio permissions/ groups, still have not got 'mplayer' or 'avplay' to play the audio only file. Will try some other things and report back. Also been reading up libav, looks pretty ...
by bbb
Tue Jul 03, 2012 4:48 pm
Forum: General discussion
Topic: kernel source ?
Replies: 2
Views: 806

kernel source ?

the forum search option ignores 'source' :(

- been looking around for a good 15 minutes or so now to find the (git) web-site with the raspberrypi kernel source code, you think it be easy to find right ? ......
by bbb
Mon Jul 02, 2012 2:31 pm
Forum: Raspberry Pi OS
Topic: Chromium browser build failure
Replies: 46
Views: 18834

Re: Chromium browser build failure

I built chromium from the sources that are currently in Debian Sid (20.0.1132.41~r143299-1), using the dev-vm provided by plugwash. I managed to solve most build errors with some dirty hacks from http://www.cnx-software.com/2012/04/19/building-chromium-os-for-raspberry-pi-armv6/ , a patch from the ...
by bbb
Tue Jun 26, 2012 9:47 pm
Forum: Advanced users
Topic: MPEG-2 Decoding
Replies: 230
Views: 88795

Re: MPEG-2 Decoding

I think Martins stuff uses libavcodec which is really easy to get playing an mpeg2 file. I built a command line player in an hour or two learning from scratch. Cheers - I'll take a look at some docs for that. For what its worth this is the compile error I continue to get on mplayer: cc -MD -MP -Wun...
by bbb
Tue Jun 26, 2012 6:52 am
Forum: General discussion
Topic: Already killed my PI
Replies: 15
Views: 3004

Re: Already killed my PI

I had a issue like that too this too - Pi would just sit there with LEDs on and not (continue) boot :( The only I could get it to boot, was to unplug the HDMI cable, disconnect, reconnect power, let the Pi power up. Then reconnect the HDMI and do ctrl-atl-del to restart the system and get the video ...
by bbb
Thu Jun 14, 2012 12:48 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Ready-made GPIO-RS232 cable
Replies: 48
Views: 42432

Re: Ready-made GPIO-RS232 cable

Of course, one advantage to having an actual, real, 9 (or 25) pin serial connector involved is that it would work with a serial terminal (e.g., a VT100). Those were the days... Indeed. I was more interested since I thought it might be easier / cheaper to just convert GPIO straight to serial (just a...
by bbb
Thu Jun 14, 2012 11:22 am
Forum: Off topic discussion
Topic: What was your first computer?
Replies: 567
Views: 229738

Re: What was your first computer?

My computer history is: Amstrad CPC 464 with a color monitor. (Also tinkered with BBC micros, Electrons and Archimedes at school) Intel 386sx25 (family computer but was allowed to tinker as long as I fixed stuff afterwards) Then I owned lots of PCs, all self built:- 486DX4-100, Intel P75 system, AMD...
by bbb
Thu Jun 14, 2012 11:08 am
Forum: Debian
Topic: Newer linux kernel available???
Replies: 7
Views: 3106

Re: Newer linux kernel available???

Bootc has a 3.2.x based kernel and being a long term supported kernel series AND the kernel series to be used for official kernels in debian wheezy this is probablly the way to go in the medium term. In the long term the ideal would be to push everything upstream, but that requires some serious wor...
by bbb
Thu Jun 14, 2012 8:08 am
Forum: Beginners
Topic: Repeat last command as sudo
Replies: 9
Views: 5844

Re: Repeat last command as sudo

BakaOsaka wrote:And then there's the simple mans method, press the up arrow and then go back and type Sudo :D
That is the the way I do it, Up Arrow , Ctrl-A, "sudo", Enter :)
Hint: Ctrl-A = go to start of line....
by bbb
Wed Jun 13, 2012 4:30 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Ready-made GPIO-RS232 cable
Replies: 48
Views: 42432

Re: Ready-made GPIO-RS232 cable

Thanks a lot everyone for the help.

I just happen to have a Nokia DKU-5 cable spare - hurray for no-cost DIY solutions :)

EDIT: is there a Poc connector to Serial 9-pin version of this cable ?
by bbb
Wed Jun 13, 2012 2:27 pm
Forum: Advanced users
Topic: MPEG-2 Decoding
Replies: 230
Views: 88795

Re: MPEG-2 Decoding

Ive done simple benchmarking and monitoring 'top' seems to show cpu at 99%. libmpeg2 seems to have some arm optimisation and does seem slightly faster, but libavcodec is easier to code., ... I am not completely sure on this and need to check how Linux reports CPU usage - but I think processes that ...
by bbb
Wed Jun 13, 2012 1:36 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Ready-made GPIO-RS232 cable
Replies: 48
Views: 42432

Re: Ready-made GPIO-RS232 cable

I was looking for something similar too spent a while reading threads and checking the wiki- but could not work if its possible to get the serial pins on the GPIO header to talk standard RS232 that can be hooked up to a PCs serial port - not bother about having to make the lead myself, just need a s...
by bbb
Wed Jun 13, 2012 1:30 pm
Forum: Advanced users
Topic: MPEG-2 Decoding
Replies: 230
Views: 88795

Re: MPEG-2 Decoding

MartenR seems to have a very good insight into this, I wonder if he is working on anything? Or has a direction he thinks I should go! I am working on a port of vomp (see my raspberry git at git.vomp.tv). Since only yuv conversion in opengl es is insufficient I will probably start implementing motio...
by bbb
Tue Jun 12, 2012 10:59 am
Forum: Graphics programming
Topic: Simple interfaces without xwindows
Replies: 9
Views: 11057

Re: Simple interfaces without xwindows

Ncurses should do the trick: http://en.wikipedia.org/wiki/Ncurses

something like 'apt-get libncurses-dev' should install the header files, you need to do 'apt-cache search ncurses' to find the actual package names. I have seen mention of python/ruby bindings too ...
by bbb
Mon Jun 11, 2012 11:27 pm
Forum: Debian
Topic: Help test the next Debian image (wheezy)
Replies: 443
Views: 150429

Re: Help test the next Debian image (wheezy)

I notice you have included NetSurf as an additional browser, this seems a bit faster than Midori but struggles to show a common web page such as BBC news correctly - is there any chance of including Chromium ? There is currently no 'armel' chromium package in upstream Debian wheezy, and it's a bit ...
by bbb
Mon Jun 11, 2012 11:52 am
Forum: Debian
Topic: Help test the next Debian image (wheezy)
Replies: 443
Views: 150429

Re: Help test the next Debian image (wheezy)

After doing an "apt-get update" and an "apt-get upgrade" attempting to install bluetooth with "apt-get-install bluetooth" fails with: Setting up bluez (4.99-2) ... [ ok ] Reloading system message bus config...done. [....] Starting bluetooth:Segmentation fault Can you get more info on that? Add a 's...
by bbb
Mon Jun 11, 2012 11:45 am
Forum: Raspberry Pi OS
Topic: strange repeating text message
Replies: 5
Views: 2519

Re: strange repeating text message

Sounds like power issues .... have you checked voltage across TP1 and TP2 ? There is info on the wiki about this. I am right on the edge of what is acceptable for the PI (need to sort out a better PSU) ... I have a problem with both the official Debian image, and Raspbian using the latest firmware/k...
by bbb
Sun Jun 10, 2012 6:37 pm
Forum: Raspberry Pi OS
Topic: Chromium browser build failure
Replies: 46
Views: 18834

Re: Chromium browser build failure

Just a useless cheer post. Having a good browser on the Pi is important. The work you're doing is highly appreciated and anticipated :) Thanks 8-) Attached is a patch for getting Chromium 18 to build. Still no progess on why the builds don't work correctly. 3 files changed, I wouldn't recommend try...
by bbb
Sun Jun 10, 2012 2:12 am
Forum: Raspberry Pi OS
Topic: Raspbian Wheezy minimal custom image
Replies: 12
Views: 5121

Re: Raspbian Wheezy minimal custom image

Update: - Synced to 2012/06/08 - Disabled incremental updates, means apt-get update is much faster - Workaround for a kernel bug which hangs the Raspberry Pi under heavy network/disk loads. http://www.linuxsystems.it/2012/06/raspbian-wheezy-armhf-raspberry-pi-minimal-image/ Thanks ! I am currently ...
by bbb
Sat Jun 09, 2012 1:47 pm
Forum: Raspberry Pi OS
Topic: Chromium browser build failure
Replies: 46
Views: 18834

Re: Chromium browser build failure

I have also got chromium 17.0.963.83~r127885 built for raspbian (it is the last version to build successfully in wheezy armhf). It has the same problem, will not display any pages as seen in the screenshot below:- screen.png I've checked the 17 and 18 builds using the v7clean script, and is reported...
by bbb
Fri Jun 08, 2012 2:18 pm
Forum: General discussion
Topic: A plea to the Foundation re. MPEG-2
Replies: 153
Views: 48426

Re: A plea to the Foundation re. MPEG-2

I personally don't get all the complaints about MPEG-2.  Yes I have heard that much stuff is still transmitted over the air MPEG-2, but how do you intend on getting that content to the R-Pi last time I checked there is no television reciever on the product.  ..... Transcode people. simple answer: P...
by bbb
Fri Jun 08, 2012 10:01 am
Forum: Raspberry Pi OS
Topic: Chromium browser build failure
Replies: 46
Views: 18834

Re: Chromium browser build failure

Short story of it is: Chromium failed to build for armv6 using the autobuild tool. Now we have to get it to build. Sounds like that was accomplished, but now the program is bugged. Need to figure out where the bugs are, and if they have armv7 code in them. Yep that pretty much sums it up. I am not ...
by bbb
Thu Jun 07, 2012 9:31 am
Forum: Raspberry Pi OS
Topic: Chromium browser build failure
Replies: 46
Views: 18834

Re: Chromium browser build failure

Well ... good and bad news. The good news I managed to hack the build system to work around the undefined reference(s) problem and got a whole lot of shiny .deb files out :) The bad news is the build does not work after installation, it does not display ANY pages - not even the settings page. I will...
by bbb
Wed Jun 06, 2012 7:02 pm
Forum: Raspberry Pi OS
Topic: Chromium browser build failure
Replies: 46
Views: 18834

Re: Chromium browser build failure

phew, almost there :) fixed up the interface mismatches for media_stream_impl and media_stream_dependency_factory. Getting these linker errors now, not sure how to fix them need to do a bit of research / googling: LINK(target) out/Release/chrome out/Release/obj.target/skia/../skia_opts/third_party/s...
by bbb
Wed Jun 06, 2012 8:24 am
Forum: Raspberry Pi OS
Topic: Chromium browser build failure
Replies: 46
Views: 18834

Re: Chromium browser build failure

been looking at this issue .. someone else pointed out on IRC this set of changes that looks to stopped ARM builds working: http://groups.google.com/a/chromium.org/group/chromium-checkins/browse_thread/thread/6f87d5d968627830/25eda23ec11519b5?show_docid=25eda23ec11519b5&pli=1 Managed with apt-get so...

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