MJPEG Video Recording Example

# This work is licensed under the MIT license.
# Copyright (c) 2013-2023 OpenMV LLC. All rights reserved.
# https://github.com/openmv/openmv/blob/master/LICENSE
#
# MJPEG Video Recording Example
#
# Note: You will need an SD card to run this demo.
#
# You can use your OpenMV Cam to record mjpeg files. You can either feed the
# recorder object JPEG frames or RGB565/Grayscale frames. Once you've finished
# recording a Mjpeg file you can use VLC to play it. If you are on Ubuntu then
# the built-in video player will work too.

import csi
import time
import mjpeg
import machine

csi0 = csi.CSI()
csi0.reset()  # Reset and initialize the sensor.
csi0.pixformat(csi.RGB565)  # Set pixel format to RGB565 (or GRAYSCALE)
csi0.framesize(csi.QVGA)  # Set frame size to QVGA (320x240)
csi0.snapshot(time=2000)  # Wait for settings take effect.

led = machine.LED("LED_RED")

led.on()
m = mjpeg.Mjpeg("example.mjpeg")

clock = time.clock()  # Create a clock object to track the FPS.
for i in range(200):
    clock.tick()
    m.write(csi0.snapshot())
    print(clock.fps())

m.close()
led.off()

raise (Exception("Please reset the camera to see the new file."))