Originally posted by linuxgeex
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- Multiple inputs on the TV or monitor
- A/V Receiver
- HDMI switch or KVM switch
The main use case I can see for HDMI-in would be recording (e.g. video game or desktop capture). However, I think software-only solutions tend to work well enough.
Another HDMI-in use case would be picture-in-picture, although it'd require your source not be HDCP encrypted. If your device had HDCP decryption, then you could also build a video post-processor.
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