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tundra/tools/test-camera-aal.py

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+#!/usr/bin/env python3
+# SPDX-License-Identifier: MPL-2.0
+"""Smoke-test Droidian's Qt AAL camera backend without saving an image.
+
+The old gst-droid probe is not a valid Sargo test: it loads the obsolete
+Stagefright codec library before it reaches the Android camera provider.  The
+shipping camera application uses QtMultimedia's AAL plugin instead.  This
+check reports configuration and process startup only. A process can remain
+alive while the camera backend is blocked; that does not validate the sensor.
+"""
+import configparser
+import json
+import os
+from pathlib import Path
+import subprocess
+import time
+
+
+def main():
+    config_path = Path('/usr/lib/droidian/device/droidian-camera.conf')
+    config = configparser.ConfigParser()
+    config.read(config_path)
+    backend = config.get('General', 'backend', fallback='').strip().lower()
+    env = os.environ.copy()
+    env.setdefault('QT_QPA_PLATFORM', 'offscreen')
+    env.setdefault('XDG_RUNTIME_DIR', '/run/user/32011')
+    env.setdefault('HOME', '/home/droidian')
+    started = time.monotonic()
+    try:
+        result = subprocess.run(
+            ['/usr/bin/droidian-camera'], env=env, capture_output=True,
+            text=True, timeout=8)
+        exit_code = result.returncode
+    except subprocess.TimeoutExpired as error:
+        # Timeout is deliberately not treated as successful initialization.
+        result = error
+        exit_code = 124
+    stderr = getattr(result, 'stderr', '') or ''
+    stdout = getattr(result, 'stdout', '') or ''
+    if isinstance(stderr, bytes):
+        stderr = stderr.decode(errors='replace')
+    if isinstance(stdout, bytes):
+        stdout = stdout.decode(errors='replace')
+    print(json.dumps({
+        'recordedAtUnix': time.time(),
+        'backendConfig': str(config_path),
+        'backend': backend,
+        'applicationInstalled': Path('/usr/bin/droidian-camera').exists(),
+        'processStayedAlive': exit_code == 124,
+        'initializationVerified': False,
+        'previewVerified': False,
+        'captureTested': False,
+        'recordingRetained': False,
+        'stagefrightWarning': 'libstagefright_ccodec.so' in stderr,
+        'exitCode': exit_code,
+        'seconds': round(time.monotonic() - started, 2),
+        'stderrTail': stderr[-1000:],
+        'stdoutTail': stdout[-1000:],
+    }, indent=2))
+
+
+if __name__ == '__main__':
+    main()