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Q&A ffmpeg: apply a filter from a start time to the end of the video

I'm using ffmpeg to apply a filter in between two time points. I am using the between() operator to specify the times. For example, to apply the yadif filter between 30 and 90 seconds I run: ffmpe...

1 answer  ·  posted 2y ago by Trevor‭  ·  last activity 2y ago by Trevor‭

Question ffmpeg
#1: Initial revision by user avatar Trevor‭ · 2022-09-04T18:31:36Z (almost 2 years ago)
ffmpeg: apply a filter from a start time to the end of the video
I'm using ffmpeg to apply a filter in between two time points. I am using the `between()` operator to specify the times. For example, to apply the yadif filter between 30 and 90 seconds I run:
```
ffmpeg -i video.mp4 -vf "yadif:enable='between(t,30,90)'" output.mp4
```

However, I want to specify the end time as the end of the video. So I am wondering if there's a way to do something like this:
```
ffmpeg -i video.mp4 -vf "yadif:enable='between(t,30,video_end_time)'" output.mp4
```
This command doesn't work because `video_end_time` isn't actually an ffmpeg keyword, but hopefully this gives you an idea of what I'm trying to accomplish.