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• flutter_ffmpeg - Can we trim a part of the video in flutter while recording

  16 février 2021, par Mayur Agarwal

  I am making a flutter app, in which a user can record a video and pause in between, and when the user pauses the video a clip is formed.
So if the 4 clips are there, then 4th clip can be removed from the video (according to the time of the last clip).
By a clip I just mean the time interval between two continuous pauses. The video is being recorded continuously.
There's a way to trim a video after it's being record, for example,

  


   ffmpeg -ss 00:01:00 -i input.mp4 -to 00:02:00 -c copy output.mp4


  


  But I think it's possible only when the video is recorded.

  


  So, Is there any way to to trim a video (using flutter_ffmpeg) or the last clip, while the recording is paused ?

  


• How would I make my clips cut by PySceneDetect .03 second longer ? (PySceneDetect)

  12 novembre 2019, par barry b. bensen

  I am cutting clips from a video apart using FFmpeg and PySceneDetect’s detect-content and split-video.
  It spits out the clips from the video in a folder.

  Everything is working, but the clips are ending .03 seconds too early (under a second, not exactly .03). I would either like to make them cut .03 seconds later or add .03 seconds onto the clip’s length to try to include what would have been cut. (whatever way to get that last bit of the clip where it belongs and not on the front of the next clip).

  The ending of the clip that is cut off is being added to the next clip in the folder (the scene that was cut next, from the video).

  I have played around with the sensitivity of the detect-content (what is used to tell if the scene in a video is a new scene or not) and this isn’t affecting the last bit that is cut off of the clips. I think I have to change something in one of these .py’s

  but have not been able to understand them.

  after no progress i gota ask for help

  exmaple :
  https://imgur.com/142DsWB

  The start has video (and sound) from the clip that was cut before it

• Best way to convert a 59.94fps video to 29.97 ?

  17 novembre 2015, par manatails

  I am tryiing to normalize the clips from multiple cameras for an amateur movie.
  Thinking that 29.97 fps is the best choice for my case but my camcorder only supports recording at 59.94fps or 24fps.

  What is the best way to halve the framerate down to 29.97fps, perhaps skipping every other frame ?
  I usually use ffmpeg for transcoding but I couldn’t find much resource on changing the actual framerate.