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androidadbscreenshot

What is the difference between screenshot and screencap in adb shell?

I have a Galaxy S i9000 with CyanogenMod 10 on it which supports both of these commands in adb shell and both take screenshots. They look a little different however.

Using adb shell screenshot: screenshot



And using adb shell screencap: enter image description here



It seems that adb shell screenshot lacks one colour channel, whereas screencap shows all the channels. I tried the same experiment on a Galaxy S4 with 4.4.2 KitKat and only screencap worked, leading me to believe that screencap is a newer version of screenshot.

Solution

  • screenshot worked directly with the framebuffer which is no longer supported in the recent Android versions

    screencap is the new version of the tool which works through the SurfaceComposer instead.