imxpxpvideotransform : /dev/pxp_device: No such file or directory

[anjojohn]

Hi All

I am testing few pipelines for opencv codes and i want to input GRAY8 image to opencv. Since imxpxpvideotransform provides YUYV to GRAY8 i used this module. However pipeline is giving error

ERROR imxpxpdevice device.c:46:gst_imx_pxp_open: could not open /dev/pxp_device: No such file or directory ERROR imxpxpallocator allocator.c:213:gst_imx_pxp_allocator_init:<GstImxPxPAllocator@0x95dd10> could not open PxP device

following test pipeline also gave same error

gst-launch-1.0 videotestsrc ! video/x-raw, format=YUY2 ! imxpxpvideotransform ! video/x-raw, format=GRAY8 ! filesink location=test.gray8

I am using wandboard-dualite with yocto version 1.8.1  with gst1.0-fsl-plugin_4.0.3.bb . Do i need to insert any modules for the availability of imxpxp gstreamer modules ?

[Bio_TICFSL · Accepted solution]

Hi anjo,

It looks like you did not add the pxp library support to your /usr/lib rootfs. to do it, please add IMAGE_INSTALL_append "imx-lib"

For pxp examples one can look at unit tests in the official nxp bsp (imx-test package), pxp_lib_test, pxp_v4l2_test in imx-test-5.4.tar.gz

www.nxp.com/lgfiles/NMG/MAD/YOCTO/imx-test-5.4.tar.gz

Also for your yocto version, please check the patch: [meta-fsl-arm,24/27] gst1.0-fsl-plugins: Upgrade to 4.0.8 version - Patchwork 

regards