Re: nasty bug at qv4l2

[Mauro Carvalho Chehab <mchehab@redhat.com>]

Em 25-12-2010 07:14, Mauro Carvalho Chehab escreveu:
> Em 24-12-2010 16:54, Hans Verkuil escreveu:
>> On Friday, December 24, 2010 15:41:10 Hans de Goede wrote:
>>> Hi,
>>>
>>> On 12/24/2010 03:20 PM, Hans Verkuil wrote:
>>>> On Friday, December 24, 2010 15:19:26 Hans de Goede wrote:
>>>>> Hi,
>>>>>
>>>>> On 12/22/2010 12:30 PM, Mauro Carvalho Chehab wrote:
>>>>>> Hans V/Hans G,
>>>>>>
>>>>>> There's a nasty bug at qv4l2 or at libv4l: it is not properly updating
>>>>>> all info, if you change the video device. On my tests with uvcvideo (video0)
>>>>>> and a gspca camera (pac7302, video1), it was showing the supported formats
>>>>>> for the uvcvideo camera when I changed from video0 to video1.
>>>>>>
>>>>>> The net result is that the image were handled with the wrong decoder
>>>>>> (instead of using fourcc V4L2_PIX_FMT_PJPG, it were using BGR3), producing
>>>>>> a wrong decoding.
>>>>>>
>>>>>> Could you please take a look on it?

<snip>

>> I wonder if Mauro got confused by the different behavior as well.
> 
> I think I used the libv4l way. I'll re-try on both modes. This way, we'll know for sure if
> the issue is at libv4l or not.

Double checked: when opening in raw mode, everything works fine. However, when
opening with "libv4l" mode, it doesn't update the supported formats.

Cheers,
Mauro