Ryan Malloy
6c642f4a7e
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=$(id -u) FREQ_MHZ=107.2 docker compose -f docker/docker-compose.fm-receiver.yml up
23 lines
609 B
Bash
23 lines
609 B
Bash
#!/bin/bash
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# Entrypoint for containerized FM receiver
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set -e
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FREQ_MHZ=${FREQ_MHZ:-101.1}
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GAIN=${GAIN:-10}
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python3 -c "
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import sys, subprocess, os
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sys.path.insert(0, '/flowgraphs')
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sys.path.insert(0, '/src')
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from fm_scanner import build_fm_receiver
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freq = float(os.environ.get('FREQ_MHZ', '101.1'))
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gain = int(os.environ.get('GAIN', '10'))
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print(f'Building FM receiver for {freq} MHz (gain {gain} dB)...')
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py_path = build_fm_receiver(freq, gain=gain)
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print(f'Launching {py_path.name} — Ctrl+C to stop')
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print(f'XML-RPC control at http://localhost:8090')
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subprocess.run([sys.executable, str(py_path)])
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"
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