Re: [Sugar-devel] MP4 playback on XO-1.75?

2012-04-05 Thread Tom Parker

On 04/04/12 09:38, Christoph Derndorfer wrote:


thanks a lot for your reply and all the information.


I tried compiling ffmpeg on 12.1.0 os6 but it seems gcc or my hardware 
is buggy because gcc segfaults during the compilation. I used the source 
rpm from rpmfusion. I'll be posting about this some more on olpc devel.


I can also report that Firefox 10 on os6 has a webm codec but it doesn't 
seem to work on youtube. I haven't looked at why.

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Re: [Sugar-devel] MP4 playback on XO-1.75?

2012-04-03 Thread Tom Parker

On 02/04/12 10:34, Christoph Derndorfer wrote:


To make a long story short: Is there a way to watch MP4 videos on an 
XO-1.75 at this point in time? :-)


The Marvel SOC has hardware accelerated decoding and encoding to the 
point it can play high definition video. See 
http://dev.laptop.org/ticket/11686 for enabling this hardware. The 
Raspberry PI and the cubox both have similar hardware. Look to those 
projects for hints about where to get the software codecs compiled for 
ARM. My feeling is the processor will struggle decoding even moderate 
resolution h.264 without the hardware acceleration.


A friend is looking at getting the hardware acceleration stuff working 
on the XO, it is apparently complicated because the kernel for which 
Marvel released their drivers is quite different to that in 11.3.1. I'll 
catch up with him tomorrow and see what progress he has made on the 
12.1.0 kernel.

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Re: [Sugar-devel] MP4 playback on XO-1.75?

2012-04-03 Thread Christoph Derndorfer
On Tue, Apr 3, 2012 at 5:27 AM, Tom Parker t...@carrott.org wrote:

 On 02/04/12 10:34, Christoph Derndorfer wrote:


 To make a long story short: Is there a way to watch MP4 videos on an
 XO-1.75 at this point in time? :-)


 The Marvel SOC has hardware accelerated decoding and encoding to the point
 it can play high definition video. See http://dev.laptop.org/ticket/**
 11686 http://dev.laptop.org/ticket/11686 for enabling this hardware.
 The Raspberry PI and the cubox both have similar hardware. Look to those
 projects for hints about where to get the software codecs compiled for ARM.
 My feeling is the processor will struggle decoding even moderate resolution
 h.264 without the hardware acceleration.

 A friend is looking at getting the hardware acceleration stuff working on
 the XO, it is apparently complicated because the kernel for which Marvel
 released their drivers is quite different to that in 11.3.1. I'll catch up
 with him tomorrow and see what progress he has made on the 12.1.0 kernel.


Tom,

thanks a lot for your reply and all the information.

Please do keep me/us in the loop about the findings you and your friend
make as I'm sure many other people here are also interested in this work.
:-)

Cheers,
Christoph

-- 
Christoph Derndorfer

volunteer, OLPC (Austria) [www.olpc.at]
editor, OLPC News [www.olpcnews.com]
contributor, TechnikBasteln [www.technikbasteln.net]

e-mail: christ...@derndorfer.eu
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Re: [Sugar-devel] MP4 playback on XO-1.75?

2012-04-02 Thread Christoph Derndorfer
On Mon, Apr 2, 2012 at 5:59 AM, Kevin Mark kevin.m...@verizon.net wrote:

 On Mon, Apr 02, 2012 at 12:34:26AM +0200, Christoph Derndorfer wrote:
  Hi all,
 
  I just tried playing back the downloaded version of the recent
 littleBits TED
  talk ( http://www.ted.com/talks/
  ayah_bdeir_building_blocks_that_blink_beep_and_teach.html ) on an
 XO-1.75 but
  couldn't get it to work regardless of what I tried. In the past I always
 used
  the mplayer version that came with Flavio's JAMedia Activity to watch
 videos on
  XOs but that doesn't seem to work. Under Gnome the Movie Player asks for
  additional codecs but upon trying to install them there's a long error
 message
  which I think is trying to tell me that the necessary codecs aren't
 available
  for the ARM architecture.
 
  To make a long story short: Is there a way to watch MP4 videos on an
 XO-1.75 at
  this point in time? :-)

 I dont have an 175 but I'd hazard a guess at first transcoding to ogg
 theora?
 there are IIRC online media converting sites.


Hi Kevin,

yeah, I had thought of going that route but it would be quite a hassle
compared to simply being able to play back the video... :-/

Thanks,
Christoph

-- 
Christoph Derndorfer

volunteer, OLPC (Austria) [www.olpc.at]
editor, OLPC News [www.olpcnews.com]
contributor, TechnikBasteln [www.technikbasteln.net]

e-mail: christ...@derndorfer.eu
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Re: [Sugar-devel] MP4 playback on XO-1.75?

2012-04-01 Thread Kevin Mark
On Mon, Apr 02, 2012 at 12:34:26AM +0200, Christoph Derndorfer wrote:
 Hi all,
 
 I just tried playing back the downloaded version of the recent littleBits TED
 talk ( http://www.ted.com/talks/
 ayah_bdeir_building_blocks_that_blink_beep_and_teach.html ) on an XO-1.75 but
 couldn't get it to work regardless of what I tried. In the past I always used
 the mplayer version that came with Flavio's JAMedia Activity to watch videos 
 on
 XOs but that doesn't seem to work. Under Gnome the Movie Player asks for
 additional codecs but upon trying to install them there's a long error message
 which I think is trying to tell me that the necessary codecs aren't available
 for the ARM architecture.
 
 To make a long story short: Is there a way to watch MP4 videos on an XO-1.75 
 at
 this point in time? :-)

I dont have an 175 but I'd hazard a guess at first transcoding to ogg theora?
there are IIRC online media converting sites.
-- 
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