Rene KievitsandClaude Opus 5
0759cc00aa
Diagnosing capture on a real TV meant reading pactlSources off the screen and typing an exact PulseAudio source name back in through the same remote-driven text field — no way to copy-paste, easy to mistype, and the one piece of information (which source, if any, is actually RUNNING) was buried in a JSON dump. Added two choice() pickers bound to the same capture.device setting: one built from pactlSources (pulse/auto backends), one built from alsaCapturePcms (alsa backend), both parsed from diagnostics the service already collects — no new Luna method needed. Diagnostics already run once at boot, so the picker is populated immediately, before the user ever presses "Run diagnostics" by hand. Picking a value writes straight into capture.device, and the plain text field stays as the fallback for anything the parser misses. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
88 lines
2.7 KiB
XML
88 lines
2.7 KiB
XML
<?xml version="1.0" encoding="utf-8" standalone="yes"?>
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<!DOCTYPE PLUGIN [
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<!ENTITY name "lgtv-audiocap-loopback">
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<!ENTITY author "Crylia">
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<!ENTITY version "2026.08.26">
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<!ENTITY pluginURL "https://git.crylia.de/Crylia/lgtv_audio_cap/raw/branch/main/unraid/&name;.plg">
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]>
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<!--
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This plugin does exactly one thing: load the ALSA loopback (snd-aloop) that
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the LG TV Audio Cap RTP receiver plays into, and make that persist across an
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Unraid reboot. Everything else - actually receiving the TV's audio and
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writing it into the loopback - runs as a normal Docker container (see
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docker/Dockerfile in the project repo), because that part doesn't need
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bare-metal access. Only the kernel module load does: Unraid boots from a
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read-only USB image each time, so anything not re-applied via /boot/config/go
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or a plugin is gone on the next boot, and a container can't load a host
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kernel module for itself.
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hw:Loopback,0,0 - playback end, feed this to the receiver container
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hw:Loopback,1,0 - capture end, point HyperHDR's sound capture at this
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-->
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<PLUGIN name="&name;" author="&author;" version="&version;" pluginURL="&pluginURL;" min="6.9.0">
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<CHANGES>
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###2026.08.26
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- Initial release.
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</CHANGES>
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<FILE Run="/bin/bash">
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<INLINE>
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set -e
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NAME="&name;"
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MARK="# ${NAME}: load ALSA loopback for LG TV Audio Cap (do not remove this line by hand)"
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LOAD_CMD="/sbin/modprobe snd-aloop index=10 pcm_substreams=1 id=Loopback"
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GO=/boot/config/go
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echo "Installing ${NAME} &version;"
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if ! $LOAD_CMD 2>/tmp/${NAME}.err; then
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echo "warning: snd-aloop failed to load, see /tmp/${NAME}.err"
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echo " this Unraid build's kernel may not include it"
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fi
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if ! grep -qF "$MARK" "$GO" 2>/dev/null; then
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{
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echo "$MARK"
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echo "$LOAD_CMD"
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} >> "$GO"
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echo "Added the loopback load to $GO -- it will now load on every boot."
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else
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echo "$GO already loads the loopback; left it alone."
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fi
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echo ""
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echo "Done. Check: cat /proc/asound/cards | grep -i loopback"
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echo "In your receiver container's device settings, use hw:Loopback,0,0."
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echo "In HyperHDR's sound capture settings, use hw:Loopback,1,0."
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</INLINE>
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</FILE>
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<FILE Run="/bin/bash" Method="remove">
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<INLINE>
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set -e
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NAME="&name;"
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MARK="# ${NAME}: load ALSA loopback for LG TV Audio Cap (do not remove this line by hand)"
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GO=/boot/config/go
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if [ -f "$GO" ]; then
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if grep -qF "$MARK" "$GO"; then
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awk -v mark="$MARK" '
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$0 == mark { skip = 1; next }
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skip > 0 { skip--; next }
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{ print }
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' "$GO" > "${GO}.tmp"
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mv "${GO}.tmp" "$GO"
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echo "Removed the loopback load from $GO."
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fi
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fi
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/sbin/rmmod snd_aloop 2>/dev/null || true
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echo "${NAME} removed. The loopback will not load on the next boot."
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</INLINE>
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</FILE>
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</PLUGIN>
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