Play Blu-ray using HDMI Capture Device

bd-play.sh

#!/bin/bash

# video device list: `v4l2-ctl --list-devices`
# audio device list: `pacmd list short sources`

video_device='your video device name'
audio_device='your audio device name'

video_device_path=$(v4l2-ctl --list-devices | grep -A1 "$video_device" | tail -n1 | sed 's/^[ \t]*//')

no_inputs='--no-osc --no-input-builtin-bindings --no-input-terminal'
hw_acc='--hwdec=nvdec-copy --vo=gpu --profile=gpu-hq'

pacmd load-module module-loopback source=$audio_device
trap 'pacmd unload-module module-loopback' EXIT

mpv av://v4l2:$video_device_path $no_inputs $hw_acc --profile=low-latency --untimed >/dev/null 2>&1