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Ensure scanner releases SDR before listening

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Smittix
2026-02-04 12:07:30 +00:00
parent 3674b6e2d6
commit 0cf3a25ac6
1 changed files with 11 additions and 2 deletions
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13
routes/listening_post.py
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@@ -704,7 +704,7 @@ def _start_audio_stream(frequency: float, modulation: str):
# Validate that audio is producing data quickly
try:
ready, _, _ = select.select([audio_process.stdout], [], [], 2.0)
ready, _, _ = select.select([audio_process.stdout], [], [], 4.0)
if not ready:
logger.warning("Audio pipeline produced no data in startup window")
except Exception as e:
@@ -1084,7 +1084,7 @@ def get_presets() -> Response:
@listening_post_bp.route('/audio/start', methods=['POST'])
def start_audio() -> Response:
"""Start audio at specific frequency (manual mode)."""
global scanner_running, scanner_active_device, listening_active_device, scanner_power_process
global scanner_running, scanner_active_device, listening_active_device, scanner_power_process, scanner_thread
# Stop scanner if running
if scanner_running:
@@ -1092,6 +1092,11 @@ def start_audio() -> Response:
if scanner_active_device is not None:
app_module.release_sdr_device(scanner_active_device)
scanner_active_device = None
if scanner_thread and scanner_thread.is_alive():
try:
scanner_thread.join(timeout=2.0)
except Exception:
pass
if scanner_power_process and scanner_power_process.poll() is None:
try:
scanner_power_process.terminate()
@@ -1102,6 +1107,10 @@ def start_audio() -> Response:
except Exception:
pass
scanner_power_process = None
try:
subprocess.run(['pkill', '-9', 'rtl_power'], capture_output=True, timeout=0.5)
except Exception:
pass
time.sleep(0.5)
data = request.json or {}