How to Record Video Using Raspberry Pi: Simple Guide

To record video on a Raspberry Pi, connect a camera module and use the picamera Python library to control it. You can start recording with camera.start_recording('video.h264') and stop with camera.stop_recording().

Syntax

Here is the basic syntax to record video using the picamera library in Python:

• camera = PiCamera(): Creates a camera object.
• camera.start_recording('filename.h264'): Starts recording video to the given file.
• camera.wait_recording(seconds): Records for the specified number of seconds.
• camera.stop_recording(): Stops the recording.

python

from picamera import PiCamera
from time import sleep

camera = PiCamera()
camera.start_recording('video.h264')
camera.wait_recording(10)  # record for 10 seconds
camera.stop_recording()

Example

This example shows how to record a 5-second video using the Raspberry Pi camera and save it as my_video.h264. It demonstrates initializing the camera, starting the recording, waiting, and stopping the recording.

python

from picamera import PiCamera
from time import sleep

camera = PiCamera()

try:
    camera.start_recording('my_video.h264')
    print('Recording started...')
    sleep(5)  # record for 5 seconds
    camera.stop_recording()
    print('Recording stopped. Video saved as my_video.h264')
finally:
    camera.close()

Output

Recording started...
Recording stopped. Video saved as my_video.h264

Common Pitfalls

Some common mistakes when recording video on Raspberry Pi include:

• Not enabling the camera interface in Raspberry Pi settings.
• Forgetting to close the camera object, which can cause errors on next use.
• Using incorrect file extensions; .h264 is the raw video format from the Pi camera.
• Trying to record without sufficient permissions or without the camera connected.

Always enable the camera in raspi-config before running your code.

python

from picamera import PiCamera

# Wrong: Not closing the camera
camera = PiCamera()
camera.start_recording('video.h264')
camera.stop_recording()
# camera.close() missing - can cause errors later

# Right: Properly closing the camera
camera = PiCamera()
camera.start_recording('video.h264')
camera.stop_recording()
camera.close()

Quick Reference

Command	Description
PiCamera()	Create camera object
start_recording('file.h264')	Begin video recording to file
wait_recording(seconds)	Record for given seconds
stop_recording()	Stop video recording
close()	Release camera resources

Key Takeaways

Enable the camera interface in Raspberry Pi settings before recording.

Use the picamera Python library to control the camera and record video.

Always stop recording and close the camera to avoid errors.

Save video files with the .h264 extension for raw Pi camera video.

Use sleep or wait_recording to control recording duration.