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From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
To: Hans Verkuil <hansverk@cisco.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Hans Verkuil <hverkuil@xs4all.nl>,
	Sylwester Nawrocki <snjw23@gmail.com>,
	Sakari Ailus <sakari.ailus@iki.fi>,
	Kim HeungJun <riverful@gmail.com>,
	Linux Media Mailing List <linux-media@vger.kernel.org>,
	Stanimir Varbanov <svarbanov@mm-sol.com>
Subject: Re: [RFC] snapshot mode, flash capabilities and control
Date: Mon, 28 Feb 2011 12:54:12 +0100 (CET)	[thread overview]
Message-ID: <Pine.LNX.4.64.1102281237250.11156@axis700.grange> (raw)
In-Reply-To: <201102281217.12538.hansverk@cisco.com>

On Mon, 28 Feb 2011, Hans Verkuil wrote:

> Does anyone know which drivers stop capture if there are no buffers available? 
> I'm not aware of any.

Many soc-camera hosts do that.

> I think this is certainly a good initial approach.
> 
> Can someone make a list of things needed for flash/snapshot? So don't look yet 
> at the implementation, but just start a list of functionalities that we need 
> to support. I don't think I have seen that yet.

These are not the features, that we _have_ to implement, these are just 
the ones, that are related to the snapshot mode:

* flash strobe (provided, we do not want to control its timing from 
	generic controls, and leave that to "reasonable defaults" or to 
	private controls)
* trigger pin / command
* external exposure
* exposure mode (ERS, GRR,...)
* use "trigger" or "shutter" for readout
* number of frames to capture

Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/

  parent reply	other threads:[~2011-02-28 11:54 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-24 12:18 [RFC] snapshot mode, flash capabilities and control Guennadi Liakhovetski
2011-02-24 12:40 ` Hans Verkuil
2011-02-24 16:07   ` Guennadi Liakhovetski
2011-02-24 17:57     ` Kim HeungJun
2011-02-25 10:05       ` Laurent Pinchart
2011-02-25 13:53         ` Sakari Ailus
2011-02-25 17:08           ` Guennadi Liakhovetski
2011-02-25 18:55             ` Sakari Ailus
2011-02-25 20:56               ` Guennadi Liakhovetski
2011-02-28 11:57                 ` Guennadi Liakhovetski
2011-03-06  9:53                 ` Sakari Ailus
2011-02-26 12:31             ` Hans Verkuil
2011-02-26 13:03               ` Guennadi Liakhovetski
2011-02-26 13:39                 ` Sylwester Nawrocki
2011-02-26 13:56                   ` Hans Verkuil
2011-02-26 15:42                     ` Sylwester Nawrocki
2011-02-28 10:28                     ` Laurent Pinchart
2011-02-28 10:40                       ` Hans Verkuil
2011-02-28 10:47                         ` Laurent Pinchart
2011-02-28 11:02                         ` Guennadi Liakhovetski
2011-02-28 11:07                           ` Laurent Pinchart
2011-02-28 11:17                             ` Hans Verkuil
2011-02-28 11:19                               ` Laurent Pinchart
2011-02-28 11:54                               ` Guennadi Liakhovetski [this message]
2011-02-28 22:41                                 ` Guennadi Liakhovetski
2011-03-02 17:51                                   ` Guennadi Liakhovetski
2011-03-02 18:19                                     ` Hans Verkuil
2011-03-03  1:05                                       ` Andy Walls
2011-03-03 11:50                                         ` Laurent Pinchart
2011-03-03 13:56                                           ` Andy Walls
2011-03-03 14:04                                             ` Laurent Pinchart
2011-03-03 14:55                                               ` Andy Walls
2011-03-03 14:29                                             ` Sakari Ailus
2011-03-03  8:02                                       ` Guennadi Liakhovetski
2011-03-03  9:25                                         ` Hans Verkuil
2011-02-28 13:33                               ` Andy Walls
2011-02-28 13:37                                 ` Andy Walls
2011-02-28 11:37                             ` Guennadi Liakhovetski
2011-02-28 12:03                               ` Sakari Ailus
2011-02-28 12:44                                 ` Guennadi Liakhovetski
2011-02-28 15:07                                   ` Sakari Ailus
2011-02-28 10:24                 ` Laurent Pinchart
2011-02-25 16:58         ` Guennadi Liakhovetski
2011-02-25 18:49           ` Sakari Ailus
2011-02-25 20:33             ` Guennadi Liakhovetski
2011-02-27 21:00               ` Sakari Ailus
2011-02-28 11:20                 ` Guennadi Liakhovetski
2011-02-28 13:44                   ` Sakari Ailus
2011-03-03  7:09 ` Kim, HeungJun
2011-03-03  7:30   ` Guennadi Liakhovetski

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