linux-kernel - Re: [PATCH] v4l: Add source event change for bit-depth

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Message-ID: <01bc9ad3-6e62-2b24-1238-60e65ea14610@linaro.org>
Date:   Tue, 23 Apr 2019 17:54:00 +0300
From:   Stanimir Varbanov <stanimir.varbanov@...aro.org>
To:     Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>
Cc:     linux-media@...r.kernel.org,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hverkuil@...all.nl>,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH] v4l: Add source event change for bit-depth

Hi Sakari,

Thanks for the comments!

On 4/23/19 9:43 AM, Sakari Ailus wrote:
> Hi Stan,
> 
> On Mon, Apr 15, 2019 at 06:27:23PM +0300, Stanimir Varbanov wrote:
>> This event indicate that the source bit-depth is changed during
>> run-time. The client must get the new format and re-allocate buffers
>> for it. This can usually happens with video decoder (encoders) when
>> the bit-stream depth is changed from 8 to 10bits or vice versa.
> 
> Thanks for the patch.
> 
> How about adding an event for pixelformat change, instead of bit depth? The
> application presumably knows the formats it can work with, and can adapt to
> that as well as a change to the bit depth.

Well, I'd like to hear more opinions but in principle I'd agree with you.

<cut>

-- 
regards,
Stan