Frame synchronization problem during video cameras switching

cancel
Showing results for 
Search instead for 
Did you mean: 

Frame synchronization problem during video cameras switching

100 Views
antonivanov
Contributor I
Hi all.
I'm using VAR-SOM-MX6_V2 with TVP5150AM1PBS Video Decoder and with two video cameras.
For video cameras image viewing  I'm using command mxc_v4l2_tvin.out -ow 640 -oh 480 -fUYVY.
For cameras switching I'm using command echo 1 ( or 0) >> /sys/bus/i2c/devices/0-005d/input
During the cameras switching frame syncronisation takes too much time. How could I fix it?
IMG_20171204_161558.jpg

Best regards, Anton Ivanov.
Labels (1)
0 Kudos
1 Reply

67 Views
igorpadykov
NXP TechSupport
NXP TechSupport

Hi Anton

i.MX6 IPU has not hardware support improving camera

 switching frame syncronisation. One can try to debug it (measuring with

oscilloscope) which part of software takes much time, use mxc_v4l2_tvin

sources in imx-test package:
www.nxp.com/lgfiles/NMG/MAD/YOCTO/imx-test-5.7.tar.gz

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

0 Kudos