FFmpeg - Cut video from the beginning until a certain pixel is colored at a specific color

Question

I am new to working with FFmpeg and would like to automate video trimming but can't find a way to do it.

So, what I would like to achieve is this: I want to delete the beginning of a video file until a certain pixel (x,y) is colored gray (0x303030).

I am sure that somewhere in the video, say, pixel (100,50) will be colored gray (0x303030). And I want the video to begin exactly at this point.

Optionally it would be great if I could move a few micro/mili seconds back-and-forth from this exact point so can have some spare time.

Tried many complex commands but nothing works for me :(

For example I've tried:

ffmpeg -i in.mp4 -vf "select='gt(scene,0.01)+eq(pict_type\,I)*eq(r(X,Y)\,128)*eq(g(X,Y)\,128)*eq(b(X,Y)\,128)',setpts=N/FRAME_RATE/TB" output.mp4

The same thing I want to do from the end of the video...

Please help!

Please don't cross-post to multiple SE sites. Pick one & stick to it, or flag for migration. Is cross-posting a question on multiple Stack Exchange sites permitted if the question is on-topic for each site? - video.stackexchange.com/questions/36209/… — Tetsujin, Commented Feb 16, 2023 at 9:38

Paxx · Accepted Answer · 2023-02-17 11:10:51Z

0

Does the in.mp4 have some audio that you could use instead to find where to cut?

You could also try to do something similar to this... Find video file position using an image match

answered Feb 17, 2023 at 11:10

Paxx

12 bronze badges

As it’s currently written, your answer is unclear. Please edit to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers in the help center.
– Community Bot
Commented Feb 17, 2023 at 11:18

Add a comment |

1 Answer 1