MX8 CSI: Difference between revisions
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<!-- Set release according to "release" parameter in URL and use RELEASE_SUMO_V1. | <!-- Set release according to "release" parameter in URL and use RELEASE_SUMO_V1.1_VAR-SOM-MX8 as default | ||
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--> {{#lst: | --> {{#lst:Yocto_Platform_Customization|{{#var:RELEASE_PARAM}}}} <!-- | ||
--> {{PageHeader|{{#var:HARDWARE_NAME}} Camera}} {{DocImage|category1=Yocto|category2={{#var:HARDWARE_NAME}} | --> {{#lst:Debian_Platform_Customization|{{#var:RELEASE_PARAM}}}} <!-- | ||
--> {{PageHeader|{{#var:HARDWARE_NAME}} Camera}} {{DocImage|category1=Yocto|category2=Debian}} [[Category:{{#var:HARDWARE_NAME}}]] __toc__ | |||
{{#ifeq: {{#var:HARDWARE_NAME}} | VAR-SOM-MX8X | = Testing MIPI-CSI2 and parallel CSI cameras = | = Testing MIPI-CSI2 cameras =}} | {{#ifeq: {{#var:HARDWARE_NAME}} | VAR-SOM-MX8X | = Testing MIPI-CSI2 and parallel CSI cameras = | = Testing MIPI-CSI2 cameras =}} | ||
Make sure you have the camera(s) connected to the board before booting it and running any of the pipelines below .<br> | Make sure you have the camera(s) connected to the board before booting it and running any of the pipelines below .<br> | ||
The i.MX family of SOCs uses gstreamer as a multimedia framework. Please refer to https://gstreamer.freedesktop.org/ | The i.MX family of SOCs uses gstreamer as a multimedia framework. Please refer to https://gstreamer.freedesktop.org/ | ||
{{#varexists:DEBIAN_NAME| | |||
== Install Utils == | |||
Run the following command to install v4l-utils: | |||
# apt-get clean; apt-get update; apt-get install -y v4l-utils | |||
}} | |||
== Camera Probe == | == Camera Probe == | ||
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In the examples below /dev/video1 can be used instead of /dev/video0 on boards with 2 cameras. | In the examples below /dev/video1 can be used instead of /dev/video0 on boards with 2 cameras. | ||
{{#ifeq: {{#var: | {{#ifeq: {{#var:YOCTO_NAME}}|Sumo| | ||
* 480p (640x480): | * 480p (640x480): | ||
# gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=1 ! video/x-raw,width=640,height=480 ! jpegenc ! filesink location=/tmp/test.jpg | # gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=1 ! video/x-raw,width=640,height=480 ! jpegenc ! filesink location=/tmp/test.jpg | ||
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The following pipeline is an example of using 2 cameras simultaneously.<br> | The following pipeline is an example of using 2 cameras simultaneously.<br> | ||
In this example a short video stream from each camera is saved as an MJPEG-encoded AVI file. | In this example a short video stream from each camera is saved as an MJPEG-encoded AVI file. | ||
{{#ifeq: {{#var: | {{#ifeq: {{#var:YOCTO_NAME}}|Sumo| | ||
<pre> | <pre> | ||
# gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=100 ! video/x-raw,width=1920,height=1080 ! jpegenc ! avimux ! filesink location=./test0.avi \ | # gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=100 ! video/x-raw,width=1920,height=1080 ! jpegenc ! avimux ! filesink location=./test0.avi \ | ||
Latest revision as of 15:12, 6 June 2023
Warning: This page is designed to be used with a 'release' URL parameter.
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VAR-SOM-MX8 Camera
Testing MIPI-CSI2 cameras
Make sure you have the camera(s) connected to the board before booting it and running any of the pipelines below .
The i.MX family of SOCs uses gstreamer as a multimedia framework. Please refer to https://gstreamer.freedesktop.org/
Camera Probe
Run the following command to list the detected camera devices:
# v4l2-ctl --list-devices
On VAR-SOM-MX8 it should produce the following output:
# v4l2-ctl --list-devices
vpu B0 (platform:):
/dev/video12
/dev/video13
mxc-isi (platform:58100000.isi.0):
/dev/video0
/dev/video1
mxc-jpeg decoder (platform:58400000.jpegdec):
/dev/video2
mxc-jpeg decoder (platform:58450000.jpegenc):
/dev/video3
There is one camera accessible as /dev/video0, attached to the VAR-EXT-CB8 expansion board.
On SPEAR-MX8 this should produce the following output:
# v4l2-ctl --list-devices
vpu B0 (platform:):
/dev/video12
/dev/video13
mxc-isi (platform:58100000.isi.0):
/dev/video0
/dev/video2
mxc-isi (platform:58140000.isi.4):
/dev/video1
mxc-jpeg decoder (platform:58400000.jpegdec):
/dev/video3
mxc-jpeg decoder (platform:58450000.jpegenc):
/dev/video4
There are two cameras accessible as /dev/video0 and /dev/video1, both attached to the VAR-EXT-CB8 expansion board.
Testing Camera Preview on Display
In the examples below /dev/video1 can be used instead of /dev/video0 on boards with 2 cameras.
- 480p (640x480):
# gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=640,height=480 ! autovideosink sync=false
- NTSC (720x480):
# gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=720,height=480 ! autovideosink sync=false
- 720p (1280x720):
# gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=1280,height=720 ! autovideosink sync=false
- 1080p (1920x1080):
# gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=1920,height=1080 ! autovideosink sync=false
- QSXGA (2592x1944):
# gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=2592,height=1944 ! autovideosink sync=false
Testing Camera JPEG Snapshot
To capture a JPEG snapshot run one of the pipelines below, depending upon the required picture resolution.
In the examples below /dev/video1 can be used instead of /dev/video0 on boards with 2 cameras.
- 480p (640x480):
# gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=1 ! video/x-raw,width=640,height=480 ! jpegenc ! filesink location=/tmp/test.jpg
- NTSC (720x480):
# gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=1 ! video/x-raw,width=720,height=480 ! jpegenc ! filesink location=/tmp/test.jpg
- 720p (1280x720):
# gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=1 ! video/x-raw,width=1280,height=720 ! jpegenc ! filesink location=/tmp/test.jpg
- 1080p (1920x1080):
# gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=1 ! video/x-raw,width=1920,height=1080 ! jpegenc ! filesink location=/tmp/test.jpg
- QSXGA (2592x1944):
# gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=1 ! video/x-raw,width=2592,height=1944 ! jpegenc ! filesink location=/tmp/test.jpg
Using 2 cameras simultaneously
The following pipeline is an example of using 2 cameras simultaneously.
In this example a short video stream from each camera is saved as an MJPEG-encoded AVI file.
# gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=100 ! video/x-raw,width=1920,height=1080 ! jpegenc ! avimux ! filesink location=./test0.avi \
v4l2src device=/dev/video1 num-buffers=100 ! video/x-raw,width=1920,height=1080 ! jpegenc ! avimux ! filesink location=./test1.avi