Uli Plank wrote:I was asking about the frame rate, not the bit rate.
Hi, sorry I misread your reply. The original video is constant frame rate.
Jim Simon wrote:Is the original video 25i? Maybe VLC is doing some kind of deliterlacing?
The original video was deinterlaced (Yadif).
shebbe wrote:Why not just use the original video? Or convert it within Resolve to an image sequence? VLC might not be the best solution for those kind of tasks.
That was my original intention but I'd graded all the scenes (it's a black and white video) in advance with the levels in GIMP but I wasn't able to match the subtly of the level settings within Davinci. The dark, mid and light in GIMP each have levels +- 0-255 whereas Davinci has the equivalent settings of Lift, Gamma and gain but with +- 20. I thought maybe with fractions of the amounts I'd be able to find a solution to convert the levels but I spent over an hour rendering tests of just the first scene attempting to match my settings but I found it impossible to achieve. The closest I got ended with the black level blown out so I thought I'd resort to a PNG sequence where I can batch convert each scene. I can also then fix any of the major dirt and scratches by hand.
I could try creating the image sequence in Resolve rather than VLC and see how that goes, I should mention also that I am of course writing to the internal NVME SSD when I created the sequence with VLC. I'm mystified at why importing the sequence is twice as fast. Setting the attributes of the sequence when imported back as a video to 11fps (fractions are not possible) it's then close to playing at the rate of the video so it's as if roughly half the frames are dropped.
Any further advice greatly appreciated!