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| − | __TOC__
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| − | = Displaying Camera Images using GStreamer =
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| − | These instructions are for using a OV5645 MIPI Camera and [https://www.96boards.org/product/mipiadapter/ MIPI Adapter Mezzanine] board.
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| − | Before GStreamer can be used, the VIN/CSI settings must best configured manually on the command line using the media-ctl utility.
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| − | In the BSP, this is done by running the script /home/root/vin-init.sh in the rootfs.
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| − | This file located in the BSP at rzg2_bsp_eva_v104/meta-rzg2/recipes-multimedia/vin-init/files/vin-init.sh
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| − | The BSP also installs the file systemd service file "vin.service" into /etc/systemd/system/multi-user.target.wants/vin.service so that the vin-init.sh script runs automatically on system boot.
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| − | For example, for RZ/G2E,the follow command will be executed:
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| − | <pre>
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| − | media-ctl -d /dev/media0 -r
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| − | media-ctl -d /dev/media0 -l "'rcar_csi2 feaa0000.csi2':1 -> 'VIN4 output':0 [1]"
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| − | media-ctl -d /dev/media0 -V "'rcar_csi2 feaa0000.csi2':1 [fmt:UYVY8_2X8/1280x960 field:none]"
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| − | media-ctl -d /dev/media0 -V "'ov5645 3-003c':0 [fmt:UYVY8_2X8/1280x960 field:none]"
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| − | </pre>
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| − | This connects VIN4 (/dev/video0) to OV5645.
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| − | The only thing you can change in G2E is 'VIN4 output' => 'VIN5 output' if you want to use /dev/video1
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| − | With the Gstreamer pipeline, you have to add vspmfilter or vspfilter to convert UYVY to BGRA.
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| − | Example:
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| − | <pre>
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| − | gst-launch-1.0 -v v4l2src device=/dev/video0 io-mode=dmabuf ! 'video/x-raw,format=UYVY,width=1280,height=960,framerate=30/1' ! vspfilter ! 'video/x-raw,format=BGRA' ! waylandsink
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| − | gst-launch-1.0 -v v4l2src device=/dev/video0 ! 'video/x-raw,format=UYVY,width=1280,height=960,framerate=30/1' ! vspmfilter dmabuf-use=true ! 'video/x-raw,format=BGRA' ! waylandsink
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| − | </pre>
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| − | HACK FOR EARLY BOARDS: As for the intermittent 'device is busy' and similar errors - these seem to be caused by glitches in the electrical connections of the MIPI cameras. Just unplugging the camera and plugging it a couple of times fixed the issue it seems.
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