Re: [Playerstage-users] sphere driver error

[Elvina M. <elv...@sp...>]

Dear Paul,

Thanks for fixing the sphere driver. However, I am working on player 
2.1.1 and I can't get the patch to work. Is it possible to have a patch 
for this version ?

Elvina

Paul Osmialowski wrote:
> New working driver (sphereptz) is waiting on a patch tracker.
>
> Paul
>
> On Sun, 25 Oct 2009, Paul Osmialowski wrote:
>
>   
>> Some news:
>> 1. Good: camerauvc drivers is not buggy, it works fine for me with
>> Sphere camera on two dramatically different kernels: RedHat's 2.6.18 for
>> Scientific Linux 5.x and vanilla kernel 2.6.30 for Gentoo Linux.
>> 1. Bad: sphere driver code designed for old-V4L API cannot be reused to
>> write new sphere driver, headers it uses (for PTZ ioctl's definitions)
>> just cannot be mixed with V4L2 API.
>> 2. Good news is that finally I've found a program that is able to operate
>> PTZ capabilities of this camera. It is free, open source and use V4L2 API.
>> Its name is guvcview and is available in official Gentoo portage tree (it
>> is ~x86 masked, fortunately it works stable, tested on 2.6.30 kernel
>> with its built-in uvc driver). The plan is to use this source code as a
>> hint how to write new sphere2 driver (I guess we should leave old sphere
>> driver in Player tree for those who stick with old-V4L API - old 2.6.1x
>> kernels for embedded computers may still provide it).
>>
>> Paul
>>
>> On Sun, 18 Oct 2009, Paul Osmialowski wrote:
>>
>>     
>>> I hope it would be easier to add ptz interface (not provided by default)
>>> to camerauvc driver (which itself seems need some bugfixing).
>>> Paul
>>>
>>> On Sun, 18 Oct 2009, Paul Osmialowski wrote:
>>>
>>>       
>>>> Hello,
>>>>
>>>> BAD NEWS: I've looked at the code of sphere driver, it uses old V4L API
>>>> (actually it includes headers from old-API camerav4l driver) while
>>>> uvc kernel module offers only new V4L2 API (I've tried ekiga application
>>>> which can easily switch between new and old API, sphere camera can be
>>>> opened only using new API functions). I guess this driver might have been
>>>> tested with 2.4 kernels some time ago, it won't work with any recent Linux
>>>> distro. Basically, this driver must be rewritten (to look like camerauvc
>>>> driver which itself uses new V4L2 API), however, as I quickly looked at
>>>> it, it seems it uses extended old-V4L API funcions to control ptz
>>>> capabilities of the camera. This can make rewriting job harder to
>>>> complete. I can try to do that, however, for me it won't be a task of high
>>>> priority, earning money have higher priority nowadays.
>>>>
>>>> Paul
>>>>
>>>> On Fri, 16 Oct 2009, Paul Osmialowski wrote:
>>>>
>>>>         
>>>>> Hello,
>>>>>
>>>>> The "broken sphere camera driver" topic returns from time to time, so I
>>>>> decided to buy one for my lab and see what the situation is. I've just
>>>>> received it so I hope I'll be able to release a patch soon (right after I
>>>>> finish my ranger interface collective bugfix), so stay tuned.
>>>>>
>>>>> Paul
>>>>>
>>>>> On Thu, 15 Oct 2009, Alberto Valero Gomez wrote:
>>>>>
>>>>>           
>>>>>> Hi all,
>>>>>>
>>>>>> I have a Sphere Logitech camera working properly on Ubuntu 9.10
>>>>>>
>>>>>> I use Player 2.1.3.
>>>>>>
>>>>>> I would like to capture the camera with player and control the
>>>>>> pan/tilt/zoom.
>>>>>>
>>>>>> I have tried with the sphere driver, config file:
>>>>>>
>>>>>> driver
>>>>>> (
>>>>>>  name "sphere"
>>>>>>  provides ["ptz:0" "camera:0"]
>>>>>>  port "/dev/video0"
>>>>>>  size [800 600]
>>>>>>  mode "RGB24"
>>>>>>  automatic_wb "fl"
>>>>>>  framerate 30
>>>>>>  shutter_speed   64000
>>>>>>  automatic_gain  10000
>>>>>>  dump_settings 0
>>>>>> )
>>>>>>
>>>>>> player runs properly, but I cannot subscribe to the camera. I get the
>>>>>> error
>>>>>>
>>>>>>
>>>>>> accepted TCP client 0 on port 6665, fd 7
>>>>>> Setting up sphere driver
>>>>>> fg_open(): get framebuffer failed; ignoring: Invalid argument
>>>>>> fg_open(): get memory buffer: Invalid argument
>>>>>> error   : Setup():  unable to open
>>>>>> warning : subscription failed for device camera:0
>>>>>> warning : skipping subscription to unknown device blobfinder:0
>>>>>>
>>>>>> If instead of the sphere plugin I use "camerauvc" it works properly, but
>>>>>> I cannot control ptz.
>>>>>>
>>>>>> Some advice?? Why "sphere" does not work??
>>>>>>
>>>>>> Thanks in advance.
>>>>>>
>>>>>> --Alberto.
>>>>>>
>>>>>>
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>>     
>
> ------------------------------------------------------------------------------
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