[FFmpeg-user] Directly converting DNGs to MP4
martin.hoppe at zeit-feld.de
Sun Nov 8 19:12:37 EET 2020
Hello nice girls ans guys!
I have a highspeed camera that records raw data to DNG files. Now I try
to have the fastest possible preview video of what is recorded. I
succeeded using the GPU via FFMPEG, which is absolutely the fastest way
I found until now.
This is the command line I use:
FFMPEG -R 25 -F IMAGE2 -I FRAME_%06D.DNG -VCODEC LIBX264 -CRF 25
-PIX_FMT YUV420P PREVIEW.MP4
This gives me a MP4, but the colors are broken, the image is too dark
and green and the quality is very bad, with a lot of banding and
Does anyone know how to make ffmpeg apply reasonably balanced settings
when reading the DNGs?
Thanks a lot! Martin
More information about the ffmpeg-user