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#!/bin/sh
caffeine
PCI_ADDRESS="0000:00:14.0"
# USB_BUS_NUM="11"
USB_BUS_NUM="12"
VIDEO_DEVICE="/dev/v4l/by-path/pci-$PCI_ADDRESS-usb-0:$USB_BUS_NUM:1.0-video-index0"
AUDIO_DEVICE="alsa:usbstream=CARD=MS2109"
WIDTH="$1"
HEIGHT="$2"
FRAMERATE="$3"
RESOLUTION="${WIDTH}x${HEIGHT}"
DEVICE="$(readlink -f "$VIDEO_DEVICE")"
# DEVICE_INDEX="$(grep "usb-$PCI_ADDRESS-$USB_BUS_NUM" /proc/asound/card*/usbmixer | cut -d: -f1 | tr -cd '[:digit:]')"
# DEFAULT_SINK_ALIAS="$(pw-metadata 0 default.audio.sink | grep -Po "value:'(.*?)'" | head -c-2 | cut -c8- | jq --raw-output .name)"
# CAPTURE_FL="alsa:pcm:$DEVICE_INDEX:front:$DEVICE_INDEX:capture:capture_0"
# CAPTURE_FR="alsa:pcm:$DEVICE_INDEX:front:$DEVICE_INDEX:capture:capture_1"
# OUTPUT_FL="$DEFAULT_SINK_ALIAS:playback_0"
# OUTPUT_FR="$DEFAULT_SINK_ALIAS:playback_1"
# 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 "$DEVICE" --set-ctrl "brightness=0,contrast=128,saturation=128,hue=0"
mpv \
--no-config \
--input-conf=/dev/null --profile=low-latency --untimed --no-correct-pts \
--no-osc --no-input-default-bindings --cache=no --pause=no --force-seekable=no \
--demuxer-lavf-format=video4linux2 \
--demuxer-lavf-o-set=input_format=mjpeg,framerate="$FRAMERATE",resolution="$RESOLUTION",rw_timeout=30000000 \
--demuxer-thread=yes \
"av://v4l2:$DEVICE"
# --audio-samplerate=48000 --audio-channels=stereo --audio-file="av://$AUDIO_DEVICE" \
# --lavfi-complex="[aid1] amix [ao]; [v] [ao] concat=n=1:v=1:a=1 [vo] [ao]" \
# pw-link -d "$CAPTURE_FL" "$OUTPUT_FL"
# pw-link -d "$CAPTURE_FR" "$OUTPUT_FR"
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