New files for running the FM receiver in Docker with audio output:
- Dockerfile.gnuradio-audio: GNU Radio image with ALSA→PulseAudio bridge
- libasound2-plugins for ALSA PulseAudio plugin
- /etc/asound.conf configures ALSA to route to PulseAudio
- docker-compose.fm-receiver.yml: Full FM receiver setup
- PulseAudio socket mount for audio
- USB passthrough for RTL-SDR (requires privileged mode)
- XML-RPC port 8090 exposed for tuning control
- Environment vars: FREQ_MHZ, GAIN
- entrypoint-fm.sh: Builds and runs flowgraph at specified frequency
- run-fm-receiver.sh: Helper script with usage instructions
Usage:
HOST_UID=$(id -u) FREQ_MHZ=107.2 docker compose -f docker/docker-compose.fm-receiver.yml up
