Hi,
I'm trying to open a video stream in opencv with minimal software conversion from a mipi csi ov5640 camera. My pipeline is:
`imxv4l2videosrc device=/dev/video1 ! imxipuvideotransform ! video/x-raw, format=BGR ! appsink`
This results in a black display with all the frames coming out of the pipeline being empty. If I use `videoconvert` instead of `imxipuvideotransform` the pipeline works just fine but the effective fps is ~12 at 640x480, which is too slow for my application.
I also tried some pipelines on the commandline with the following effects:
`gst-launch-1.0 imxv4l2videosrc device=/dev/video1 ! imxipuvideotransform ! video/x-raw, format=BGR ! imxipuvideosink`
The right half of the resulting video is discolored with almost a brown color
`gst-launch-1.0 imxv4l2videosrc device=/dev/video1 ! imxipuvideotransform ! video/x-raw, format=BGR ! imxeglvivsink`
The resulting video is black
Both of the above commands executed with a BGRA format display the feed correctly. I've attached images to show the results of each pipeline
System:
Apalis i.MX6D 1GB V1.1
Linux 4.1.44-2.7.5
OpenCV 3.1
GStreamer 1.8.3
Solved! Go to Solution.
Hi Abbas
one can test with nxp version of gstreamer plugins : imx-gst1.0-plugin using
sect.7.3.15 Video conversion attached Linux Guide and bsps described on
Linux 4.1.44 and community version gstreamer-imx are not supported by nxp and
it can be posted on gstreamer-imx github page :
https://github.com/Freescale/gstreamer-imx/issues
Best regards
igor
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Hi Abbas
one can test with nxp version of gstreamer plugins : imx-gst1.0-plugin using
sect.7.3.15 Video conversion attached Linux Guide and bsps described on
Linux 4.1.44 and community version gstreamer-imx are not supported by nxp and
it can be posted on gstreamer-imx github page :
https://github.com/Freescale/gstreamer-imx/issues
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
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