[FFmpeg-user] Video filtering for chroma dot crawl and rainbow effect

Carl Eugen Hoyos cehoyos at ag.or.at
Mon Jan 25 03:14:19 CET 2016

Christian Johannesen <chrisjohannesen <at> gmail.com> writes:

> ffmpeg.exe  -r 30000/1001 -i D:\media\test_720x486i_dotcrawl.mov

Please remove the input option -r unless you know exactly 
what you are doing.

> -filter_complex [0:0]crop=704:480:8:6,pullup

As already written, you have to tell the (automatically 
inserted) scale filter that your input is not progressive 
to avoid artefacts.

But the real issue is that detelecine's start_frame 
option does not work;-(

Carl Eugen

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