Well it is not exactly as you would like. But I used the chisel /carve script for this.
Opened a canvas a little larger than you want. Colour it with the colour you need. Then using the script - Chisel off edges - outside at 25 - leave the rest as is. Then carve in at 12 inside giving a bit od roundness to it.
Add a pattern layer to give it a 'rough' look then use overlay layer mode.
Make sure you image has an alpha channel and using the rectangle select, select the very outside of your frame and crop to selection. Using the rectangle select again select the inside of your frame and delete. Crop to content just incase you didn't select close enough first time. Save as a png if you want to keep the transparency.
Or you can use the script rich pointed you to.
