#!/bin/sh

caffeine

WIDTH="$1"
HEIGHT="$2"
FRAMERATE="$3"
RESOLUTION="${WIDTH}x${HEIGHT}"
DEVICE="/dev/$(readlink /dev/v4l/by-id/usb-MACROSILICON_USB_Video-* | head -n1 | cut -c7-)"

CAPTURE_FL="$(pw-link -oI | grep 'usb-MACROSILICON_USB_Video-.*:capture_AUX0' | cut -f3 -d' ')"
CAPTURE_FR="$(pw-link -oI | grep 'usb-MACROSILICON_USB_Video-.*:capture_AUX1' | cut -f3 -d' ')"
DEFAULT_SINK_ALIAS="$(pw-metadata 0 default.audio.sink | grep -Po "value:'(.*?)'" | head -c-2 | cut -c8- | jq --raw-output .name)"
OUTPUT_FL="$(pw-link -iI | grep "$DEFAULT_SINK_ALIAS:playback_FL" | cut -f3 -d' ')"
OUTPUT_FR="$(pw-link -iI | grep "$DEFAULT_SINK_ALIAS:playback_FR" | cut -f3 -d' ')"

echo "link $CAPTURE_FR -> $OUTPUT_FR"
echo "link $CAPTURE_FL -> $OUTPUT_FL"

pw-link "$CAPTURE_FL" "$OUTPUT_FL"
pw-link "$CAPTURE_FR" "$OUTPUT_FR"

v4l2-ctl -d "$DEVICE" --set-parm "$FRAMERATE"
v4l2-ctl -d "$DEVICE" --set-fmt-video "width=$WIDTH,height=$HEIGHT,pixelformat=MJPG"
v4l2-ctl -d "$DEVICE" --set-ctrl "brightness=0,contrast=128,saturation=128,hue=0"

mpv --demuxer-lavf-format=video4linux2 \
	--demuxer-lavf-o-set=input_format=mjpeg,framerate="$FRAMERATE",resolution="$RESOLUTION" \
	--cache=no \
	--pause=no \
	--force-seekable=no \
	--no-osc \
	--no-input-default-bindings \
	"av://v4l2:$DEVICE"
	# &> /dev/null & disown

pw-link -d "$CAPTURE_FL" "$OUTPUT_FL"
pw-link -d "$CAPTURE_FR" "$OUTPUT_FR"