ffmpeg can do that?

Friday, February 2, 2023 · Permalink

I was reading Drew DeVault’s In praise of ffmpeg and read this part:

I was recently hanging out at my local hackerspace and wanted to play some PS2 games on my laptop. My laptop is not powerful enough to drive PCSX2, but my workstation on the other side of town certainly was. So I forwarded my game controller to my workstation via USB/IP and pulled up the ffmpeg manual to figure out how to live-stream the game to my laptop. ffmpeg can capture video from KMS buffers directly, use the GPU to efficiently downscale them, grab audio from pulse, encode them with settings tuned for low-latency, and mux it into a UDP socket.

And I was like… ffmpeg can do that? I didn’t know it was possible to do such a complex thing using just ffmpeg. Fair enough, there’s the USB-over-IP thing for the gamepad, but still.

I commented it to Oliver and he was explaining me some stuff I know very little of and should set aside time to learn. KMS, the role of the Compositor, Wayland (I use X11), etc.

Creating a timelapse video with ffmpeg

Thursday, February 2, 2023 · Permalink

Having a collection of image files, you can build a timelapse video with ffmpeg like this:

ffmpeg -r 30 -pattern_type glob -i "*.png" -vcodec libx264 output.mp4

-r 30 is the number of images (frames) per second. For example, -r 1 will show every image for one second. -r 30 could be used for an animation with 30 frames per second.

And here’s Tumbler

Tuesday, February 2, 2023 · Permalink

I’ve written so much about Tumbler without a single picture. Let me rectify that. Here it is in tablet mode, while I was testing my rotation script. The photo doesn’t do the screen justice, it really looks a lot better.

So, create

Sunday, February 2, 2023 · Permalink

When you don’t create things, you become defined by your tastes rather than ability. Your tastes only narrow & exclude people. So, create.

why the lucky stiff