[Solved] How can you record a video and simultaneously preview it on the Raspberry Pi screen using picamera? - Ans: Use camera.start_preview() before start_recording() | Raspberry Pi

Raspberry Pi - Camera Module

How can you record a video and simultaneously preview it on the Raspberry Pi screen using picamera?

AUse camera.show_preview() after recording

BUse camera.preview_recording() method

CSet camera.preview = True before recording

DUse camera.start_preview() before start_recording()

Step-by-Step Solution

Solution:

Step 1: Recall preview method
picamera uses start_preview() to show live camera feed.
Step 2: Combine preview with recording
Call start_preview() before start_recording() to preview while recording.
Final Answer:
Use camera.start_preview() before start_recording() -> Option D
Quick Check:
Preview method = start_preview() [OK]

Quick Trick: Call start_preview() before recording to see video [OK]

Common Mistakes:

MISTAKES

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How can you record a video and simultaneously preview it on the Raspberry Pi screen using picamera?