Screenshot of the Nexus One from adb?

Posted by Marcus on Stack Overflow See other posts from Stack Overflow or by Marcus
Published on 2010-05-10T23:16:20Z Indexed on 2010/05/10 23:34 UTC
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android

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ffmpeg

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graphics

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screenshot

My goal is to be able to type a one word command and get a screenshot from a rooted Nexus One attached by USB.

So far, I can get the framebuffer which I believe is a 32bit xRGB888 raw image by pulling it like this:

adb pull /dev/graphics/fb0 fb0

From there though, I'm having a hard time getting it converted to a png. I'm trying with ffmpeg like this:

ffmpeg -vframes 1 -vcodec rawvideo -f rawvideo -pix_fmt rgb8888 -s 480x800 -i fb0 -f image2 -vcodec png image.png

That creates a lovely purple image that has parts that vaguely resemble the screen, but it's by no means a clean screenshot.

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