mp4 video programming with Lazarus

[stephanweber]

Hi,

what is the best method to do that in 2025? I heard about ffmpeg4laz, but find a download, etc.
I want to do e.g.:

1. Read-in file, pick a frame picture and copy it as the 1st frame
2. Extract the "speed" if changes frame to frame (e.g. due to camera shaking) , and plot it as curve
3. Up-/Down-sample to change the speed, e.g. to get a constant speed, i.e. compensate camera shake

Thanks for your expert hints.

BTW, at the moment I work on a picture (not video) manipulating app. And Lazarus is great for this, much better than what I can with with macros in GIMP or similar programs.

Bye Stephan

[Thaddy]

Another one is libvlc that comes in the standard packages.
Still needs libvlc binaries from videolan.org of course.

The videolan.org code also contains code for off-line video editting.

[metis]

@stephanweber

I heard about ffmpeg4laz

Almost. Actually it's FFPlay4Laz, FFInfo4Laz and FFGrab4Laz.

In FFGrab4Laz, You'll find ScreenRecorder2FPC:
It's a Console, that grabs the entire Screen to a VideoFile, using the FFmpeg Libraries.
Maybe this code is helpful for Your project.