RE: Video import only importing a limited number of frames

Heide Leal — Thu, 25 Aug 2022 07:50:28 GMT

Thanks!! was looking for it too
mapquest directions

RE: Video import only importing a limited number of frames

Oto — Mon, 15 Aug 2022 15:21:34 GMT

There is setting to choose how many frames per second extract. You need to calculate that.

Best results could be achieved and less blurry frames extracted if using FFMPEG and extracting only key frames(i-frames) which are best quality.

ffmpeg -skip_frame nokey -i test.mp4 -vsync vfr -frame_pts true out-%02d.jpeg

In video compression, they use the so-called IPB frames to reduce storage space:

I frames (Intra picture): a complete picture
P frames (predictive picture): p frames stores difference between current frame and previous frame.
B frames (Bidirectionally predicted picture): b-frame stores difference between current frame and previous frame and later frame.