Video Created has Blank (black) for 1st Frame

New product: VCL components for displaying and controlling IP cameras, webcams, video conferencing, video chats
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Video Created has Blank (black) for 1st Frame

Post by » Sat Feb 17, 2018 12:35 am

Writing from 1) a camera or 2) user supplied images the first frame of all videos created is always blank (black).

Thanks for implementing the feature to create video from user supplied images. Your only competition in this area is and RVMedia works better and simpler than their Video Encoder.

John Sigoloff

Sergey Tkachenko
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Re: Video Created has Blank (black) for 1st Frame

Post by Sergey Tkachenko » Sat Feb 17, 2018 9:32 am

It was made intentional. Recording is started immediately after assigning Recording = True, and frames (last frame received by recorder from the video source) are written every 1/VideoFramePerSec sec.
If video source is not ready, black frames are written at the beginning. To minimize this effect, start the camera before starting recording.

But, actually, it makes sense only when recording video with sound, to make them synchronized. In the next update, we will remove writing black frames at the beginning of silent videos.

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