{"id":14080,"date":"2017-06-18T23:06:58","date_gmt":"2017-06-19T03:06:58","guid":{"rendered":"http:\/\/scruss.com\/blog\/?p=14080"},"modified":"2017-06-18T23:06:58","modified_gmt":"2017-06-19T03:06:58","slug":"easy-raspberry-pi-framebuffer-screenshots-with-raspi2png","status":"publish","type":"post","link":"https:\/\/scruss.com\/blog\/2017\/06\/18\/easy-raspberry-pi-framebuffer-screenshots-with-raspi2png\/","title":{"rendered":"Easy Raspberry Pi framebuffer screenshots with raspi2png"},"content":{"rendered":"

I gave a talk about retro-gaming on the Raspberry Pi yesterday. I was describing RetroPie<\/a>, and I really needed lots of screenshots to illustrate games. I’m used to grabbing screens under X, but RetroPie runs without it, so all my usual tools were of no use.<\/p>\n

\"\"<\/a>I’d just found out about raspi2png<\/a>, and it works really well! Usage is simple: just call it like<\/p>\n

raspi2png -p outfile.png<\/pre>\n
and it’ll save whatever’s on the screen. It doesn’t play well with X, but there are already tools to take screenshots with that. As I was playing games, I didn’t want to have to pause the computer to take a shot, so I ran the command every five seconds for 30*5 seconds like this:<\/p>\n
for f in {1..30}; do raspi2png -p retro_$(date -Iseconds).png; sleep 5; done<\/pre>\n
Here are some quality shots via raspi2png from Deathchase, officially the best ZX Spectrum game ever:<\/p>\n