ADLINK Technology EVA SDK, User Manual, Page: 32 / 117

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Image and Video Capture Plugins
triggersource
“triggersource” gchararray
Sets the camera capture trigger source. This is valid only when the “continuous” property set to false.
Flags: Read, Write
Default value: Software
3.1.8 flirplugin
This is a GStreamer element that uses FLIR's USB3 and GigE vision cameras When multiple cameras are
available, use the camera property to specify the specific camera for image capture.
Note: The downstream elements may waste a lot of time handling frames. If the camera's frame rate is too fast, the
pipeline will drop a lot of frames, resulting in rendering delays. However, the rendering and AI inference
performance of each platform are not the same. It is recommended to reduce the frame rate of the camera source
or image resolution to make the rendered screen output smoother.
3.1.8.1 Examples Using gst-launch
This pipeline launches the plugin.
gst-launch-1.0 flirplugin ! videoconvert ! glimagesink
Use the pixel-format property if the camera module supports other pixel fomats. The example is YUV422_8_UYVY.
gst-launch-1.0 flirplugin pixel-format= YUV422_8_UYVY ! videoconvert ! glimagesink
This pipeline uses the BayerBG8 format to display a Hikrobot video.
gst-launch-1.0 flirplugin pixel-format=BayerBG8 ! bayer2rgb ! videoconvert !
glimagesink
Use the camera property to set the camera ID if the system has multiple camera modules.
gst-launch-1.0 flirplugin camera=0 ! videoconvert ! glimagesink
gst-launch-1.0 flirplugin camera=1 ! videoconvert ! glimagesink
Notes :
1. The avalible pixel formats are:
BayerRG8\BayerGR8\BayerGB8\BayerBG8\YUV422Packed\YCbCr422_8\RGB8Packed\BGR8\Mono8
2. The available pixel formats differ depending on the selected camera model.
3. If the pixel-foramt is not specified, the element will use the camera’s setting. If using camera’s setting, add
the corresponding decoder element according to the actual pixel format. For example, if a camera uses
Bayer format, the pipeline must add a
bayer2rgb element after flirplugin element for decoding.