How to add a watermark to each frame and save the video?

Laura0955

Hi guys,
I'm trying to add some watermarks to the video and save it to a file, instead of just displaying the watermarked video by putting text to it. But h265Packet.getData().tofile(videoFile) , as demo shows, can't help either, since I can't set the buffer with my watermarked frame. How can I solve this problem?

Thanks.

erik

Hello Laura0955 ,
The video stream is encoded (H265), and I believe the easiest way would be to add a watermark to the unencoded CV2 frames. I would suggest either streaming an unencoded stream, or switching to MJPEG and using cv2.decode() function on the host to decode the frames to be able to then add the watermark to them.
Thoughts?
Thanks, Erik