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Mira130 Linux Driver: Difference between revisions
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==Using the Driver== | ==Using the Driver== | ||
== Capture with v4l2-ctl == | |||
* Install v4l utils: | |||
<syntaxhighlight lang=bash> | |||
sudo apt install v4l-utils | |||
</syntaxhighlight> | |||
* Test the capture framerate: | |||
==== 120 fps ==== | |||
<syntaxhighlight lang=bash> | |||
v4l2-ctl -d /dev/video0 --set-fmt-video=width=1080,height=1280,pixelformat=Y10 --set-ctrl bypass_mode=0 --stream-mmap | |||
</syntaxhighlight> | |||
The output should look like the following: | |||
<pre> | |||
ams@ams-desktop:~$ v4l2-ctl -d /dev/video0 --set-fmt-video=width=1080,height=1280,pixelformat=Y10 --set-ctrl bypass_mode=0 --stream-mmap | |||
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 120.00 fps | |||
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 120.00 fps | |||
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 120.00 fps | |||
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 120.00 fps | |||
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 120.00 fps | |||
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 120.00 fps | |||
</pre> | |||
* Capture a single frame: | |||
<pre> | |||
v4l2-ctl -d /dev/video0 --set-fmt-video=width=1080,height=1280,pixelformat=Y10 --set-ctrl bypass_mode=0 --stream-mmap --stream-count=1 --stream-to=test_frame_120fps.raw | |||
</pre> | |||
The MIRA130 supports a resolution of 1080x1280 but the platform used (Jetson Nano) defined padding of 8 pixels to the image in order to align and optimize the capture process. | |||
The post-process applied is to open the image with a 1088x1280 resolution using Vooya o Rawpixels. | |||
Please consider the following settings to be able to view it correctly: <br> | |||
* '''rawpixels:''' <br> | |||
- ''width:'' 1088 <br> | |||
- ''height:'' 1280 <br> | |||
- ''Predefined format:'' Grayscale 8bit <br> | |||
- ''Pixel format:'' Grayscale <br> | |||
- ''bpp1:'' 16 <br> | |||
- Little Endian box checked <br> | |||
'''Note:''' The Y10 format comes in 2 bytes with a padding of zeros for the remaining bits. Since rawpixels requires the bit depth specification for Y10 to be 16bpps, the image looks darker. | |||
* '''vooya:''' <br> | |||
- ''width:'' 1088 <br> | |||
- ''height:'' 1280 <br> | |||
- ''Frames/Second:'' 120 <br> | |||
- ''Color Space:'' Single Channel <br> | |||
- ''Data Container:'' Single Integer <br> | |||
- ''Bit Depth (Value):'' 14bit <br> | |||
'''Note1:''' Bit depth needs to be 14 due to how the Jetson boards pack pixels. The image looks darker. | |||
'''Note2:''' To see the frame as in the email was sent before, the bit depth needs to be 9. | |||
{{ContactUs}} | {{ContactUs}} | ||
[[Category:Jetson]][[Category:Jetson V4L2 Drivers]][[Category: | [[Category:Jetson]][[Category:Jetson V4L2 Drivers]][[Category:AMS]] | ||