Video export slower than real-time on Jetson Nano

[ama-jesper]

The reason why it is slow: When "replaying" SVO files for video export, I believe the grab() and retrieve_image() commands need to decompress the H264 video frame-by-frame, and then when using OpenCVs VideoWriter()-class, as per your examples, we again need to compress each frame. Reading is rather fast, but it is the writing to a video file (compression) that is horribly slow on the Jetson.

Question Is there a way to directly "pipe" the H264 video from the SVO-file directly into a video container? Without having to open, read, decompress, compress, write?

[github-actions[bot]]

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