first commit

2026-04-17 14:06:18 +02:00
commit 640442b399
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+#!/usr/bin/env python3
+"""
+Serveur Flask - Stream vidéo Raspberry Pi HQ Camera M12
+Compatible Raspberry Pi 4 et 5 avec Picamera2
+"""
+
+import io
+import threading
+import time
+from flask import Flask, Response, render_template_string
+
+from picamera2 import Picamera2
+from picamera2.encoders import JpegEncoder
+from picamera2.outputs import FileOutput
+
+# ─── Configuration ────────────────────────────────────────────────────────────
+
+RESOLUTION = (1280, 720)   # Résolution du stream (largeur, hauteur)
+FRAMERATE  = 30            # Images par seconde
+QUALITY    = 85            # Qualité JPEG (1-100)
+HOST       = "0.0.0.0"    # Ecoute sur toutes les interfaces réseau
+PORT       = 5000
+
+# ─── Buffer de frames thread-safe ─────────────────────────────────────────────
+
+class StreamOutput(io.BufferedIOBase):
+    def __init__(self):
+        self.frame = None
+        self.condition = threading.Condition()
+
+    def write(self, buf):
+        with self.condition:
+            self.frame = buf
+            self.condition.notify_all()
+
+
+# ─── Initialisation caméra ────────────────────────────────────────────────────
+
+picam2 = Picamera2()
+
+video_config = picam2.create_video_configuration(
+    main={"size": RESOLUTION, "format": "RGB888"},
+    controls={"FrameRate": FRAMERATE}
+)
+picam2.configure(video_config)
+
+output = StreamOutput()
+encoder = JpegEncoder(q=QUALITY)
+
+picam2.start_recording(encoder, FileOutput(output))
+print(f"[✓] Caméra démarrée ({RESOLUTION[0]}x{RESOLUTION[1]} @ {FRAMERATE}fps)")
+
+
+# ─── Générateur MJPEG ─────────────────────────────────────────────────────────
+
+def generate_frames():
+    """Génère un flux MJPEG frame par frame."""
+    while True:
+        with output.condition:
+            output.condition.wait()
+            frame = output.frame
+        yield (
+            b"--frame\r\n"
+            b"Content-Type: image/jpeg\r\n\r\n" + frame + b"\r\n"
+        )
+
+
+# ─── Interface HTML ───────────────────────────────────────────────────────────
+
+HTML_PAGE = """
+<!DOCTYPE html>
+<html lang="fr">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Pi Camera Stream</title>
+    <style>
+        * { margin: 0; padding: 0; box-sizing: border-box; }
+
+        body {
+            background: #0a0a0a;
+            color: #e0e0e0;
+            font-family: 'Courier New', monospace;
+            min-height: 100vh;
+            display: flex;
+            flex-direction: column;
+            align-items: center;
+            justify-content: center;
+            gap: 20px;
+        }
+
+        header {
+            text-align: center;
+        }
+
+        h1 {
+            font-size: 1.2rem;
+            letter-spacing: 0.3em;
+            text-transform: uppercase;
+            color: #00ff88;
+        }
+
+        .subtitle {
+            font-size: 0.75rem;
+            color: #555;
+            letter-spacing: 0.15em;
+            margin-top: 4px;
+        }
+
+        .stream-container {
+            position: relative;
+            border: 1px solid #1a1a1a;
+            box-shadow: 0 0 40px rgba(0, 255, 136, 0.05);
+        }
+
+        .stream-container::before {
+            content: '● REC';
+            position: absolute;
+            top: 12px;
+            left: 12px;
+            font-size: 0.65rem;
+            color: #ff4444;
+            letter-spacing: 0.1em;
+            z-index: 10;
+            animation: blink 1.5s infinite;
+        }
+
+        @keyframes blink {
+            0%, 100% { opacity: 1; }
+            50%       { opacity: 0.2; }
+        }
+
+        img#stream {
+            display: block;
+            max-width: 90vw;
+            max-height: 75vh;
+        }
+
+        footer {
+            font-size: 0.7rem;
+            color: #333;
+            letter-spacing: 0.1em;
+        }
+
+        footer span {
+            color: #00ff88;
+        }
+    </style>
+</head>
+<body>
+    <header>
+        <h1>Raspberry Pi Camera</h1>
+        <p class="subtitle">HQ Camera M12 — Live Stream</p>
+    </header>
+
+    <div class="stream-container">
+        <img id="stream" src="/video_feed" alt="Camera stream">
+    </div>
+
+    <footer>
+        Résolution <span>{{ width }}×{{ height }}</span> —
+        Qualité <span>{{ quality }}%</span>
+    </footer>
+</body>
+</html>
+"""
+
+# ─── Application Flask ────────────────────────────────────────────────────────
+
+app = Flask(__name__)
+
+
+@app.route("/")
+def index():
+    return render_template_string(
+        HTML_PAGE,
+        width=RESOLUTION[0],
+        height=RESOLUTION[1],
+        quality=QUALITY
+    )
+
+
+@app.route("/video_feed")
+def video_feed():
+    """Endpoint du flux MJPEG."""
+    return Response(
+        generate_frames(),
+        mimetype="multipart/x-mixed-replace; boundary=frame"
+    )
+
+
+# ─── Lancement ────────────────────────────────────────────────────────────────
+
+if __name__ == "__main__":
+    try:
+        print(f"[✓] Serveur démarré → http://{HOST}:{PORT}")
+        print(f"    Accès local  : http://localhost:{PORT}")
+        print(f"    Accès réseau : http://<IP_DU_PI>:{PORT}")
+        app.run(host=HOST, port=PORT, threaded=True)
+    except KeyboardInterrupt:
+        print("\n[!] Arrêt du serveur...")
+    finally:
+        picam2.stop_recording()
+        picam2.close()
+        print("[✓] Caméra arrêtée proprement.")