AM6 CSI: Difference between revisions
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== Testing Camera Preview on Display == | == Testing Camera Preview on Display == | ||
The driver is implemented using V4L2’s Media Controller (MC) API. In the MC API, each element in the media pipeline is configured individually by the user-space application. For more information, see: | The driver is implemented using V4L2’s Media Controller (MC) API. In the MC API, each element in the media pipeline is configured individually by the user-space application. For more information, see: {{#var:TI_CSI_DOCS_LINK}} | ||
At a minimum, the pixel format, resolution, and framerate must be configured: | At a minimum, the pixel format, resolution, and framerate must be configured: | ||
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{{AM62_CAM_PREVIEW|/dev/video0|HD 720p|1280|720|30}} | {{AM62_CAM_PREVIEW|/dev/video0|HD 720p|1280|720|30}} | ||
{{AM62_CAM_PREVIEW|/dev/video0|Full HD 1080p|1920|1080|15}} | {{AM62_CAM_PREVIEW|/dev/video0|Full HD 1080p|1920|1080|15}} | ||
{{AM62_CAM_PREVIEW|/dev/video0|Full HD 1080p|1920|1080|30}} | |||
{{AM62_CAM_PREVIEW|/dev/video0|QSXGA 1944p|2592|1944|15}} | {{AM62_CAM_PREVIEW|/dev/video0|QSXGA 1944p|2592|1944|15}} | ||
Latest revision as of 20:05, 23 August 2024
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VAR-SOM-AM62 Camera
Testing MIPI-CSI2 cameras
Before running any of the pipelines below make sure you have camera(s) connected. AM6 family of processors uses gstreamer as multimedia framework. Please refer to https://gstreamer.freedesktop.org/
Camera Probe
Run the following command to see if you have the camera(s) detected
# v4l2-ctl --list-devices
This should produce the following output
j721e-csi2rx (platform:30102000.ticsi2rx):
/dev/video0
/dev/video1
/dev/video2
/dev/video3
/dev/media0
The camera interface is /dev/video0
Testing Camera Preview on Display
The driver is implemented using V4L2’s Media Controller (MC) API. In the MC API, each element in the media pipeline is configured individually by the user-space application. For more information, see: https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/08_06_00_42/exports/docs/linux/Foundational_Components/Kernel/Kernel_Drivers/Camera/CSI2RX.html?highlight=media%20ctl
At a minimum, the pixel format, resolution, and framerate must be configured:
# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:<format>/<resolution>@1/<framerate>]'
After configuring the pipeline, it can be confirmed by reading it back:
# media-ctl --get-v4l2 '"ov5640 0-003c":0'
The following examples show how to preview the camera on the display for different resolutions:
- VGA 640x480@30fps:
# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:UYVY8_1X16/640x480@1/30]' # XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=640,height=480,framerate=30/1,format=YUY2 ! waylandsink sync=false
- NTSC 480p 720x480@30fps:
# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:UYVY8_1X16/720x480@1/30]' # XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=720,height=480,framerate=30/1,format=YUY2 ! waylandsink sync=false
- HD 720p 1280x720@30fps:
# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:UYVY8_1X16/1280x720@1/30]' # XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=1280,height=720,framerate=30/1,format=YUY2 ! waylandsink sync=false
- Full HD 1080p 1920x1080@15fps:
# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:UYVY8_1X16/1920x1080@1/15]' # XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=1920,height=1080,framerate=15/1,format=YUY2 ! waylandsink sync=false
- Full HD 1080p 1920x1080@30fps:
# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:UYVY8_1X16/1920x1080@1/30]' # XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=1920,height=1080,framerate=30/1,format=YUY2 ! waylandsink sync=false
- QSXGA 1944p 2592x1944@15fps:
# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:UYVY8_1X16/2592x1944@1/15]' # XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=2592,height=1944,framerate=15/1,format=YUY2 ! waylandsink sync=false
Testing Camera JPEG Snapshot
To capture JPEG snapshot run one of the pipelines below depending upon the required picture resolution.
- VGA 640x480:
# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:UYVY8_1X16/640x480@1/30]' # XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=5 ! video/x-raw,width=640,height=480 ! jpegenc ! multifilesink max-files=1 location=/tmp/test_640x480.jpg
- NTSC 480p 720x480:
# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:UYVY8_1X16/720x480@1/30]' # XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=5 ! video/x-raw,width=720,height=480 ! jpegenc ! multifilesink max-files=1 location=/tmp/test_720x480.jpg
- HD 720p 1280x720:
# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:UYVY8_1X16/1280x720@1/30]' # XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=5 ! video/x-raw,width=1280,height=720 ! jpegenc ! multifilesink max-files=1 location=/tmp/test_1280x720.jpg
- Full HD 1080p 1920x1080:
# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:UYVY8_1X16/1920x1080@1/15]' # XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=5 ! video/x-raw,width=1920,height=1080 ! jpegenc ! multifilesink max-files=1 location=/tmp/test_1920x1080.jpg
- QSXGA 1944p 2592x1944:
# media-ctl --set-v4l2 '"ov5640 0-003c":0 [fmt:UYVY8_1X16/2592x1944@1/15]' # XDG_RUNTIME_DIR="/run/user/0" gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=5 ! video/x-raw,width=2592,height=1944 ! jpegenc ! multifilesink max-files=1 location=/tmp/test_2592x1944.jpg