frame timing different in compositor window
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#173 frame timing different in compositor window
I've attached an image showing Cinelerra 10.1 where I'm trying to check at which frame a pulsed laser comes on, the compositor shows laser light at the selected position, however the timeline shows the pulsed laser light starting on the next frame - I believe it is the timeline that is correct (based upon the timing shown in Cinelerra of previous videos where the compositor looks to be in synch).
The video was recorded on a Galaxy S20FE (SM-G780F/DS) at 960fps and stored as 30fps by the phone.
convert to uncompressed video
ffmpeg -i input.mp4 -c:v rawvideo -pix_fmt rgb24 output.mov
Apart from the frames being rotated by -90 degrees (making the video match the angle the phone was at during the recording), the conversion has made no difference in the behaviour of Cinelerra - with the compositor still showing the next frame rather than the current frame.
If it helps to have the original video file I've uploaded it to:
http://www.staffordengineeringsystems.co.uk/Data/Laser/20260504_120205.mp4
Go to settings->EDL settings. Set project frame rate to 30. Reload the file or load it with Conform Project checked.
Thanks, that worked.
I think I should mention it was a bit of a pain to get the Cinelerra binary up and running as libpng12-0 is no longer included in the current Debian distribution and the .deb files online to install it are setup for the old directory structure and so don't work (I gather the same library is not included in the latest version of Ubuntu either).