Hi Shuzhen,
On Monday 22 November 2010 23:51:41 Shuzhen Wang wrote:
Hello, Laurent,
I Get the logic you have behind using cropping/scaling.
The reason I wanted to use V4L2_CID_ZOOM_ABSOLUTE are that the application
will have a simpler interface to control zoom level supported by the
://www.linuxtv.org/news.php?entry=2010-06-22.mchehab.
Regards,
Shuzhen
-Original Message-
From: Laurent Pinchart [mailto:laurent.pinch...@ideasonboard.com]
Sent: Wednesday, November 24, 2010 4:02 AM
To: Shuzhen Wang
Cc: linux-media@vger.kernel.org; 'Hans de Goede'
Subject: Re: Zooming with V4L2
Hi
Hi Shuzhen,
On Wednesday 24 November 2010 20:58:33 Shuzhen Wang wrote:
Hello, Laurent,
About using daemon, we have proprietary image processing and optimization
code that needs to sit between application and driver.
That's a pretty common requirement, and there's nothing seriously wrong
PM
To: Shuzhen Wang
Cc: linux-media@vger.kernel.org; 'Hans de Goede'
Subject: Re: Zooming with V4L2
Hi Shuzhen,
On Wednesday 24 November 2010 20:58:33 Shuzhen Wang wrote:
Hello, Laurent,
About using daemon, we have proprietary image processing and optimization
code that needs to sit between
Hi Shuzhen,
On Sunday 21 November 2010 00:50:59 Shuzhen Wang wrote:
Hello, Laurent,
Thank you for the reply.
In our case, most of the time the sensor outputs bigger image size than the
output size, so the ISP hardware does downscaling.
When zooming in, we can do cropping, and less
Hi,
On 11/22/2010 11:59 AM, Laurent Pinchart wrote:
Hi Shuzhen,
On Sunday 21 November 2010 00:50:59 Shuzhen Wang wrote:
Hello, Laurent,
Thank you for the reply.
In our case, most of the time the sensor outputs bigger image size than the
output size, so the ISP hardware does downscaling.
Hi Hans,
On Monday 22 November 2010 12:23:49 Hans de Goede wrote:
On 11/22/2010 11:59 AM, Laurent Pinchart wrote:
On Sunday 21 November 2010 00:50:59 Shuzhen Wang wrote:
Hello, Laurent,
Thank you for the reply.
In our case, most of the time the sensor outputs bigger image size than
On Monday 22 November 2010 12:34:04 Laurent Pinchart wrote:
On Monday 22 November 2010 12:23:49 Hans de Goede wrote:
On 11/22/2010 11:59 AM, Laurent Pinchart wrote:
On Sunday 21 November 2010 00:50:59 Shuzhen Wang wrote:
Hello, Laurent,
Thank you for the reply.
In our case,
On Monday, November 22, 2010 12:34:50 Laurent Pinchart wrote:
On Monday 22 November 2010 12:34:04 Laurent Pinchart wrote:
On Monday 22 November 2010 12:23:49 Hans de Goede wrote:
On 11/22/2010 11:59 AM, Laurent Pinchart wrote:
On Sunday 21 November 2010 00:50:59 Shuzhen Wang wrote:
Hello,
On 11/22/2010 12:53 PM, Hans Verkuil wrote:
On Monday, November 22, 2010 12:34:50 Laurent Pinchart wrote:
On Monday 22 November 2010 12:34:04 Laurent Pinchart wrote:
On Monday 22 November 2010 12:23:49 Hans de Goede wrote:
On 11/22/2010 11:59 AM, Laurent Pinchart wrote:
On Sunday 21
-media@vger.kernel.org
Subject: Re: Zooming with V4L2
On Monday 22 November 2010 12:34:04 Laurent Pinchart wrote:
On Monday 22 November 2010 12:23:49 Hans de Goede wrote:
On 11/22/2010 11:59 AM, Laurent Pinchart wrote:
On Sunday 21 November 2010 00:50:59 Shuzhen Wang wrote:
Hello, Laurent
Hi Shuzhen,
On Saturday 20 November 2010 00:17:23 Shuzhen Wang wrote:
Hello,
I am working on a SOC V4L2 driver, and need to implement zoom
functionality.
From application, there are 2 ways to do zooming. The 1st way is to use
cropping and scaling as described in section 1.11.1. The
: Saturday, November 20, 2010 9:37 AM
To: Shuzhen Wang
Cc: linux-media@vger.kernel.org
Subject: Re: Zooming with V4L2
Hi Shuzhen,
On Saturday 20 November 2010 00:17:23 Shuzhen Wang wrote:
Hello,
I am working on a SOC V4L2 driver, and need to implement zoom
functionality.
From application
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