Le 2013-11-07 22:01, Gene Heskett a écrit :
> Thats exactly what I am looking for. ultil.crop, I don't recall seeing
> a mention of. Is there a man page describing it?
I have discovered that this feature was existing when analyzing camview
source tree !
Below is my camview config file. "util.crop" is not far from the the middle.
As far as I remember, this module is not installed by default with
camview-emc package.
You will have to build from source code and install it manually.
After that, it will appear in the panel of camview configuration tool.
I have connected the zoom ratio to a slider panel with a custom cam.ui
and camview-emc Python script.
<?xml version="1.0" encoding="utf-8" ?>
<chain>
<unit id="input.v4l2:0" width="1280" height="720"
pixelformat="CAM_PIXEL_FORMAT_RGB" format_name="1280x720 RGB 24bpp">
<control id="input">0</control>
<control id="standard">0</control>
<control id="brightness">133</control>
<control id="contrast">5</control>
<control id="saturation">83</control>
<control id="auto-white-balance">1</control>
<control id="control-9963800">1</control>
<control id="control-9963802">4500</control>
<control id="control-9963803">25</control>
<control id="control-9963804">0</control>
<control id="control-10094850">156</control>
<control id="control-10094856">201600</control>
<control id="control-10094857">201600</control>
<control id="control-10094858">27</control>
<control id="control-10094860">0</control>
<control id="control-10094861">0</control>
</unit>
<unit id="convert.to_rgb8" width="1280" height="720"
pixelformat="CAM_PIXEL_FORMAT_RGB" format_name="1280x720 RGB 24bpp">
</unit>
<unit id="util.crop" width="459" height="258"
pixelformat="CAM_PIXEL_FORMAT_RGB" format_name="459x258 RGB 24bpp">
<control id="ratio">0.358943</control>
</unit>
<unit id="output.opengl" width="459" height="258"
pixelformat="CAM_PIXEL_FORMAT_RGB" format_name="459x258 RGB 24bpp">
</unit>
<unit id="emc.halio" width="459" height="258"
pixelformat="CAM_PIXEL_FORMAT_RGB" format_name="459x258 RGB 24bpp">
<control id="limit">4</control>
<control id="reload">0</control>
<control id="circle">video.circle</control>
<control id="axis-pins">halui.axis.%d.pos-relative</control>
<control id="axis-letters">XYZA45678</control>
<control id="axis-format">%.3f</control>
<control id="spacing">5</control>
<control id="color-r">1</control>
<control id="color-g">1</control>
<control id="color-b">1</control>
<control id="gl-xor">0</control>
</unit>
<unit id="emc.crosshair" width="459" height="258"
pixelformat="CAM_PIXEL_FORMAT_RGB" format_name="459x258 RGB 24bpp">
<control id="enable">1</control>
<control id="color-r">1</control>
<control id="color-g">0.902174</control>
<control id="color-b">0</control>
<control id="gl-xor">0</control>
<control id="circle-radius">100</control>
<control id="circle-angle">0</control>
<control id="shape">1</control>
</unit>
</chain>
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