[Majenko] ran into this when a need to capture some HDMI video output ended up with rather less than was expected. Faced with two similar choices of discount HDMI capture device, [Majenko] opted ...

Connect the capture card to your computer’s USB port, then hook up any device with HDMI output, and you can record that device’s video using a free program called OBS (more on that shortly).

and it offers a lot more functionality than other capture cards in this price range typically provide. Rather than being expressly limited to HDMI input, the GC313 Pro can accept USB-C video input ...

But the high-level idea is that a Raspberry Pi 4 with a simple USB HDMI capture device takes the video input and converts it on the fly to a scaled down Kindle-friendly format. The converted video ...