Den 02.12.2024 12:41, skrev Michael Koch:
Is it possible to use FFmpeg for digitizing a Normal8 or Super8 film?
The framerate is 16 for Normal8 or 18 for Super8, but the motor speed
of the projector may have 10% tolerance.
I could project the film on a screen and make a FHD video at 180 fps
(with Panasonic GH5S camera).
There would be a small distortion because the projector and the camera
aren't exactly on the same axis, but that could be corrected with the
remap filter.
I haven't yet tested it. What I expect to see in the video is
approximately 5 bright frames followed by 5 dark frames.
Is it possible to automatically select one frame from the middle of
each bright segment?
Or any other ideas?
@Michael,
This is more a comment than a reply to what you specifically ask for.
About thirty years ago I recorded a few old 8 mm and Super 8mm films
from a film canvas onto my analog Hi8 camcorder/tape.
Then later on, I digitized this video via an A/D converter&recorder to
DV video format, and via ffmpeg/DeVeDe to a DVD burner.
A similar method using a consumer quality DVD recorder (in lack of a
dedicated film scanner for expected higher quality) is shown here
https://www.youtube.com/watch?v=VD_NOa3rDbg
Today I probably would have tried a better HD camcorder and output
directly via HDMI to a HDMI-USB3 video capture dongle as input tp
ffmpeg. Someone mentioned stream-copy first before encoding, without
telling how to do it in this pipe-line.
Terje J. H
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