Rene KievitsandClaude Opus 5
7529a60650
Captures the TV's audio and sends it out over several transports. The
primary one is HyperHDR: RTP/L16 to a host-side loopback device, since
HyperHDR has no network audio input of its own. A second route renders
the spectrum on the TV and sends FlatBuffers images to port 19400
instead, for setups where touching the host's sound config is not an
option.
native/ the service: capture backends (PulseAudio, ALSA, exec,
test tone, all dlopen-based), DSP, and one file per sink
frontend/ D-pad driven UI at a fixed 1920x1080
servicefiles/ native service manifest plus the boot script
host/ RTP receiver and the loopback installer for the HyperHDR
machine
tools/ build/package, asset generation, Homebrew Channel
manifest, on-TV probe
test/ host-side suites: FlatBuffers and RTP verified against
real decoders, the engine end to end, the page in jsdom
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
144 lines
4.3 KiB
Bash
Executable File
144 lines
4.3 KiB
Bash
Executable File
#!/bin/sh
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# Reports what audio a rooted webOS TV actually exposes.
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#
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# Which capture backend works depends on the model and firmware: some sets run
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# PulseAudio with a monitor source, some only offer ALSA, some need an external
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# helper. Run this once on the TV and the answer is usually obvious.
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#
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# On the TV:
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# sh tv-probe.sh
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#
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# From here, over the Homebrew Channel's ssh:
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# ssh -p 9922 root@TV-IP 'sh -s' < tools/tv-probe.sh
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# ares-shell --device tv -r "$(cat tools/tv-probe.sh)"
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#
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# Reads only. Nothing here changes the TV.
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header() {
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printf '\n=== %s\n' "$1"
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}
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have() {
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command -v "$1" >/dev/null 2>&1
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}
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show() {
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# show <label> <file>
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if [ -r "$2" ]; then
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printf -- '--- %s\n' "$1"
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cat "$2"
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fi
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}
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header "Identity"
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printf 'uid: %s\n' "$(id -u 2>/dev/null)"
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printf 'kernel: %s\n' "$(uname -r 2>/dev/null)"
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printf 'machine: %s\n' "$(uname -m 2>/dev/null)"
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for f in /etc/starfish-release /etc/os-release; do
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show "$f" "$f"
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done
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if [ -r /var/run/nyx/device_info.json ]; then
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printf -- '--- device info\n'
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cat /var/run/nyx/device_info.json
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printf '\n'
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fi
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header "Sound devices"
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if [ -d /dev/snd ]; then
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ls -l /dev/snd
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else
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echo "no /dev/snd — the ALSA backend cannot work"
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fi
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header "ALSA"
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show "cards" /proc/asound/cards
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show "pcm" /proc/asound/pcm
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show "modules" /proc/asound/modules
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if [ -d /proc/asound ]; then
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for dir in /proc/asound/card*/pcm*c; do
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[ -d "$dir" ] || continue
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printf -- '--- capture stream %s\n' "$dir"
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[ -r "$dir/info" ] && cat "$dir/info"
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done
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else
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echo "no /proc/asound — no ALSA on this firmware"
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fi
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header "Tools"
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for tool in arecord aplay amixer pactl parec pacat pulseaudio gst-launch-1.0 ffmpeg luna-send; do
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if have "$tool"; then
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printf '%-16s %s\n' "$tool" "$(command -v "$tool")"
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else
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printf '%-16s -\n' "$tool"
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fi
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done
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header "Libraries"
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# The service dlopen()s these rather than linking them, so what matters is
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# whether the file exists at all and under which soname.
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for pattern in \
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/usr/lib/libasound.so* /lib/libasound.so* \
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/usr/lib/libpulse.so* /lib/libpulse.so* \
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/usr/lib/libpulse-simple.so* /lib/libpulse-simple.so*
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do
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for lib in $pattern; do
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[ -e "$lib" ] && ls -l "$lib"
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done
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done 2>/dev/null
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header "PulseAudio"
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ps ax 2>/dev/null | grep -i '[p]ulseaudio' || ps 2>/dev/null | grep -i '[p]ulseaudio' \
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|| echo "no pulseaudio process found"
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printf -- '--- sockets\n'
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for sock in /var/run/pulse/native /run/pulse/native /tmp/pulse-*/native \
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/var/run/pulse/*.socket /dev/socket/pulse/*
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do
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[ -e "$sock" ] && ls -l "$sock"
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done 2>/dev/null
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printf -- '--- environment of the audio daemon\n'
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for pid in $(ps ax 2>/dev/null | grep -i '[a]udiod\|[p]ulseaudio' | awk '{print $1}'); do
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if [ -r "/proc/$pid/environ" ]; then
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printf 'pid %s: ' "$pid"
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tr '\0' '\n' < "/proc/$pid/environ" | grep -i 'PULSE\|XDG_RUNTIME' | tr '\n' ' '
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printf '\n'
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fi
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done
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if have pactl; then
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printf -- '--- pactl info\n'
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PULSE_SERVER="${PULSE_SERVER:-unix:/var/run/pulse/native}" pactl info 2>&1 | head -20
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printf -- '--- sources (monitors are what to capture)\n'
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PULSE_SERVER="${PULSE_SERVER:-unix:/var/run/pulse/native}" pactl list short sources 2>&1
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fi
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if have arecord; then
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header "ALSA capture devices (arecord -l)"
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arecord -l 2>&1
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printf -- '--- PCMs (arecord -L)\n'
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arecord -L 2>&1 | head -40
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fi
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header "What to put in the app"
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cat <<'EOF'
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Look at the output above and set Capture > Backend accordingly:
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PulseAudio a pulseaudio process and a socket exist, and pactl lists a
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source ending in ".monitor". Use that name as the Device, or
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leave Device blank to take the default monitor.
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ALSA /proc/asound lists a card with a capture PCM. Use hw:X,Y with
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the card and device numbers from "arecord -l".
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Command neither works but arecord/parec/gst-launch is present. Set the
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Command to something that writes raw S16LE to stdout, e.g.
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arecord -D hw:0,0 -f S16_LE -r 48000 -c 2 -t raw
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Test tone nothing at all. Use this to prove the network path works while
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you keep looking.
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If everything is missing, the audio path on this firmware is locked inside the
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proprietary audio daemon. Every sink depends on captured audio, so the test
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tone is all that will run until a capture route is found — use it to prove the
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network side, then come back to this list.
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EOF
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