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From: Mauro Carvalho Chehab <mchehab@redhat.com>
To: Simon Farnsworth <simon.farnsworth@onelan.co.uk>
Cc: Hans Verkuil <hverkuil@xs4all.nl>,
	linux-media@vger.kernel.org, Steven Toth <stoth@kernellabs.com>,
	Andy Walls <awalls@md.metrocast.net>
Subject: Re: [git:v4l-dvb/for_v2.6.40] [media] cx18: mmap() support for raw YUV video capture
Date: Tue, 03 May 2011 07:56:49 -0300	[thread overview]
Message-ID: <4DBFDF71.5090705@redhat.com> (raw)
In-Reply-To: <201105031003.40086.simon.farnsworth@onelan.co.uk>

Em 03-05-2011 06:03, Simon Farnsworth escreveu:
> On Monday 2 May 2011, Mauro Carvalho Chehab <mchehab@redhat.com> wrote:
>> Em 02-05-2011 16:11, Hans Verkuil escreveu:
>>> NACK.
>>>
>>> For two reasons: first of all it is not signed off by Andy Walls, the
>>> cx18 maintainer. I know he has had other things on his plate recently
>>> which is probably why he hasn't had the chance to review this.
>>>
>>> Secondly, while doing a quick scan myself I noticed that this code does a
>>> conversion from UYVY format to YUYV *in the driver*. Format conversion is
>>> not allowed in the kernel, we have libv4lconvert for that. So at the
>>> minimum this conversion code must be removed first.
>>
>> Patch is there at the ML since Apr, 6 and nobody acked/nacked it. If you or
>> andy were against it, why none of you commented it there?
>>
>> Now that the patch were committed, I won't revert it without a very good
>> reason.
>>
>> With respect to the "conversion from UYVY format to YUYV", a simple patch
>> could fix it, instead of removing the entire patchset.
>>
>> Steven/Simon,
>> could you please work on such change?
>>
> I received feedback, which I've been working on, and have converted to a new 
> patch against the baseline tree without this patch applied. I can obviously 
> rebase (thanks, git!) so that it applies on top of this patch. It massively 
> cleans up the code, fixes a bug, and removes the in-kernel format conversion 
> (we use libv4l here anyway, so it's not needed)
> 
> I have one more work item, requested by Andy and Hans, and that's to convert 
> just the YUV capture from videobuf to vb2, so that when Andy's got spare time 
> again, it'll be easier for him to convert the whole driver. I've been delayed 
> on this by other work committments, but I do have this on my schedule.
> 
> How do you want me to proceed?

Please send a rebased version.

Thanks,
Mauro.


  reply	other threads:[~2011-05-03 10:56 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <E1QGwlS-0006ys-15@www.linuxtv.org>
2011-05-02 19:11 ` [git:v4l-dvb/for_v2.6.40] [media] cx18: mmap() support for raw YUV video capture Hans Verkuil
2011-05-02 19:21   ` Devin Heitmueller
2011-05-02 19:35   ` Mauro Carvalho Chehab
2011-05-02 19:40     ` Devin Heitmueller
2011-05-02 20:02     ` Hans Verkuil
2011-05-02 20:59       ` Devin Heitmueller
2011-05-02 21:31         ` Hans Verkuil
2011-05-03  1:59           ` Mauro Carvalho Chehab
2011-05-03  2:40           ` Andy Walls
2011-05-03  3:28             ` Mauro Carvalho Chehab
2011-05-03  5:15               ` Hans Verkuil
2011-05-03 11:29                 ` Mauro Carvalho Chehab
2011-05-03 13:07             ` Devin Heitmueller
2011-05-03 12:49           ` Devin Heitmueller
2011-05-03 13:59             ` Hans Verkuil
2011-05-03 14:26               ` Simon Farnsworth
2011-05-03 15:03               ` Mauro Carvalho Chehab
2011-05-03 16:13                 ` Hans Verkuil
2011-05-03  9:03     ` Simon Farnsworth
2011-05-03 10:56       ` Mauro Carvalho Chehab [this message]
2011-05-03 11:57         ` [PATCH] cx18: Clean up mmap() support for raw YUV Simon Farnsworth
2011-05-03 16:24           ` Hans Verkuil
2011-05-03 22:51           ` Andy Walls
2011-05-03 23:01             ` Mauro Carvalho Chehab
2011-05-03 23:38               ` Andy Walls
2011-05-04  0:17                 ` Mauro Carvalho Chehab
2011-05-04  9:32             ` Simon Farnsworth
2011-05-04 11:31               ` Mauro Carvalho Chehab
2011-05-04 11:39                 ` [PATCH] cx18: Bump driver version to 1.5.0 Simon Farnsworth
2011-05-04 12:20                   ` Andy Walls
2011-05-05 12:42                 ` [PATCH] cx18: Fix warnings introduced during cleanup Simon Farnsworth
2011-05-05 13:41                   ` Mauro Carvalho Chehab
2011-05-05 13:44                     ` Simon Farnsworth
2011-05-10 13:49                     ` [PATCH] cx18: Move spinlock and vb_type initialisation into stream_init Simon Farnsworth
2011-05-20 23:21                       ` Mauro Carvalho Chehab
2011-05-05 11:41               ` [PATCH] cx18: Clean up mmap() support for raw YUV Mauro Carvalho Chehab
2011-05-05 12:44                 ` Simon Farnsworth
2011-05-05 13:39                   ` Mauro Carvalho Chehab

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