I take video according shell command "screenrecord --size 1920x720 --time-limit 10 /sdcard/test.mp4", but the video is abnormally, but screencap is normal.
We tried on i.MX6Q with Android 9 prebuilts P9.0.0_2.2.0_GA_DEMO_MX6SD and recorded a video with the command that you mentioned "screenrecord --size 1920x720 --time-limit 10 /sdcard/test.mp4". Video played smoothly as expected. If you are using any EVK can you please try with the prebuilts?
Thanks for your reply. In my platform, i.MX processor is i.MX 8qxp, Linux version is 4.4.0-170-generic (buildd@lcy01-amd64-019) and I do not know what is Yocto Image.