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Activity for Trevorâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
How to define an object with different subclasses in an if-statement? Note: I asked this question on TopAnswers a couple weeks ago, but didn't get any response, so I figured I'd ask it here. I am currently learning C++. I have a parent class (Vehicle) and two subclasses (Car and Boat). I am wondering how to create an object that will either be Car or Boat, depen... (more) |
— | about 1 year ago |
| Answer | — |
A: ffmpeg: apply a filter from a start time to the end of the video I think I found a solution myself. Instead of using the `between()` function, you can use the `gte()` (greater than or equal to) function. So the command above would be: ``` ffmpeg -i video.mp4 -vf "yadif:enable='gte(t,30)'" output.mp4 ``` I discovered this command by looking through the FFmpeg U... (more) |
— | over 1 year ago |
| Question | — |
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 specif... (more) |
— | over 1 year ago |
| Question | — |
Vim: how to search for all instances of a string, except for those that are between two specific strings Using Vim, I am trying to search for all instances of a specific string, except for those that fall somewhere in between two other specific strings. For example, I want to determine all instances of `bird`, except for those that fall somewhere between `abc` and `xyz`. So in the text below, a succe... (more) |
— | almost 2 years ago |