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.
next prev parent 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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4DBFDF71.5090705@redhat.com \
--to=mchehab@redhat.com \
--cc=awalls@md.metrocast.net \
--cc=hverkuil@xs4all.nl \
--cc=linux-media@vger.kernel.org \
--cc=simon.farnsworth@onelan.co.uk \
--cc=stoth@kernellabs.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox