Add SD card support

examples/Script/script_jpeg_to_sdcard.py

@@ -0,0 +1,99 @@
+#!/usr/bin/env python3
+
+import cv2
+import depthai as dai
+import numpy as np
+
+# Create pipeline
+pipeline = dai.Pipeline()
+
+# Define source and output
+camRgb = pipeline.create(dai.node.ColorCamera)
+xoutRgb = pipeline.create(dai.node.XLinkOut)
+xinCtrl = pipeline.create(dai.node.XLinkIn)
+jpegEncoder = pipeline.create(dai.node.VideoEncoder)
+scriptSave = pipeline.create(dai.node.Script)
+scriptServer = pipeline.create(dai.node.Script)
+
+# Properties
+camRgb.setResolution(dai.ColorCameraProperties.SensorResolution.THE_12_MP)
+camRgb.setPreviewSize(640, 360)
+jpegEncoder.setDefaultProfilePreset(1, dai.VideoEncoderProperties.Profile.MJPEG)
+xoutRgb.setStreamName("rgb")
+xinCtrl.setStreamName('control')
+
+# Note: all scripts accessing the media storage must run on LEON_CSS
+scriptSave.setProcessor(dai.ProcessorType.LEON_CSS)
+scriptSave.setScript("""
+import os
+
+index = 1000
+
+while True:
+    # Find an unused file name first
+    while True:
+        path = '/media/mmcsd-0-0/' + str(index) + '.jpg'
+        if not os.path.exists(path):
+            break
+        index += 1
+    frame = node.io['jpeg'].get()
+    node.warn(f'Saving to SDcard: {path}')
+    with open(path, 'wb') as f:
+        f.write(frame.getData())
+    index += 1
+""")
+
+scriptServer.setProcessor(dai.ProcessorType.LEON_CSS)
+scriptServer.setScript("""
+import http.server
+import socketserver
+import socket
+import fcntl
+import struct
+import os
+
+def get_ip_address(ifname):
+    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+    return socket.inet_ntoa(fcntl.ioctl(
+        s.fileno(),
+        -1071617759,  # SIOCGIFADDR
+        struct.pack('256s', ifname[:15].encode())
+    )[20:24])
+
+# Note: `chdir` here will prevent unmount, this should be improved!
+os.chdir('/media/mmcsd-0-0')
+
+PORT = 80
+Handler = http.server.SimpleHTTPRequestHandler
+
+with socketserver.TCPServer(("", PORT), Handler) as httpd:
+    ip = get_ip_address('re0')
+    node.warn(f'===== HTTP file server accessible at: http://{ip}')
+    httpd.serve_forever()
+""")
+
+# Linking
+camRgb.preview.link(xoutRgb.input)
+camRgb.still.link(jpegEncoder.input)
+jpegEncoder.bitstream.link(scriptSave.inputs['jpeg'])
+xinCtrl.out.link(camRgb.inputControl)
+
+# Connect to device and start pipeline
+with dai.Device(pipeline) as device:
+    # Get queues for RGB preview and capture control
+    qRgb = device.getOutputQueue(name='rgb', maxSize=4, blocking=False)
+    qControl = device.getInputQueue('control')
+
+    print('======== Press C to capture JPEG images to SDcard')
+
+    while True:
+        inRgb = qRgb.get()
+        cv2.imshow('rgb', inRgb.getCvFrame())
+
+        key = cv2.waitKey(1)
+        if key == ord('q'):
+            break
+        elif key == ord('c'):
+            ctrl = dai.CameraControl()
+            ctrl.setCaptureStill(True)
+            qControl.send(ctrl)