[Sugar-devel] libflashplayer.so and WebCam issue

[Gustavo Duarte]

Hi James,

I did the tests on a XO4 with 1G ram and F18, and the behaviour is the
same, the webcam shows bright pixels purple.

I guess i understanding your points, just to confirm, so my problem
now is that the flashplugin isn't working properly ?

I agree with you, flashplugin isn't a good choice, but unfortunately
the only option for this kind of web sites that children really likes.

So the only one thing to do, is try to fix the flashplugin ?

Thanks Gustavo.

On Thu, Jun 11, 2015 at 5:12 AM, James Cameron <quozl at laptop.org> wrote:
> Thanks for the testing.  I've done some more testing.
>
> Your new problem where bright pixels are shown as purple:
>
> - only occurs with Flash plugin, so it is unique to the plugin,
>
> - also occurs with Firefox, so it is not a Sugar Browse problem,
>
> - also occurs with the ov7670 camera, so it is independent of camera,
>
> - also occurs with Fedora 18,
>
> - also occurs with and without vMeta and OpenGL support.
>
> The root cause may be a mistake in data conversion of RGB pixel data;
> or the alignment of bit fields.
>
> I recommend not using Flash plugin.  It is out of date and has known
> security vulnerabilities that will place users at risk.
>
>
> Yesterday's Fedora 20 kernel with the siv121c RGB support fix is the
> same kernel to use on Fedora 18, and can be found in our Fedora 18
> rpmdropbox directory:
>
> http://rpmdropbox.laptop.org/f18-xo4/kernel-devel-3.5.7_xo4-20150610.0359.olpc.97336f6.armv7hl.rpm
>
> To use this kernel on Fedora 18, the firmware must be Q7C05, because
> the kernel is configured for dual core.
>
> Hope that helps!
>
> On Wed, Jun 10, 2015 at 09:57:39AM -0300, Gustavo Duarte wrote:
>> Hi James,
>>
>> I replaced the kernel, and after that:
>>
>> 1) The gst-launch test worked properly, in both cases, so RGB now is supported
>> 2) Record Activity, still working fine
>> 3) flashplugin, although it works better still is showing an ugly
>> image, as you can see
>>
>> https://goo.gl/photos/7JuQta6hJwm4iDjr5
>>
>> Any thoughts ?
>>
>> On the other hands, we have XO4 1G models with Fedora 18, with the
>> same problem, is there kernel fixed for these ?
>>
>> Thanks
>>
>>
>>
>> On Wed, Jun 10, 2015 at 1:44 AM, James Cameron <quozl at laptop.org> wrote:
>> > On Tue, Jun 09, 2015 at 10:48:32AM -0300, Gustavo Duarte wrote:
>> >> 1) The camera is siv121c
>> >> 2) Doing the gst-launch tests, both cases works like you mention
>> >> 3) Record Activity work fine.
>> >> 4) Fedora version is F20
>> >> 5) Kernel version is 3.5.7_xo4-20150205.0332.olpc.8a4cfb6
>> >
>> > Good data, thanks.
>> >
>> >> So if i understood well, my problem is, flashplugin is expected RBG
>> >> video but the driver is giving YUV video signal, is something like
>> >> that ?
>> >
>> > Yes.
>> >
>> >> Is there some fix or workaround for this ?
>> >
>> > I hope so.
>> >
>> > Please test this kernel:
>> >
>> > http://rpmdropbox.laptop.org/f20-xo4/kernel-3.5.7_xo4-20150610.0359.olpc.97336f6.armv7hl.rpm
>> >
>> > Please also do a side by side test between two laptops, showing the
>> > same scene for the camera.
>> >
>> > In this new kernel the siv121c driver has been changed to support RGB
>> > format.  Both gst-launch test cases work properly without green pixel
>> > corrupt data.
>> >
>> > The source code changes are in the arm-3.5 branch of the olpc-kernel
>> > git repository:
>> >
>> > http://dev.laptop.org/git/olpc-kernel/log/?h=arm-3.5
>> >
>> > (Kernels for XO-1.75 and XO-1 are to follow, for where the camera is
>> > used as a spare part.  The camera is not compatible with XO-1.5.)
>> >
>> > --
>> > James Cameron
>> > http://quozl.linux.org.au/
>
> --
> James Cameron
> http://quozl.linux.org.au/