Recherche avancée

Sur d’autres sites (16719)

• Bulk trim videos : remove last x seconds from video

  24 avril 2022, par dfadsfd

  Hey guys i have been searching for hours but this is giving me a lot of trouble. None of the code i found worked for me.

  


  I have a lot of videos with a different length where i want to bulk remove the last 5 second outro of. Sadly it seems that this is almost impossible as I tried it with FFMPEG -sseof command but that needs to have the actual video length, and all my videos have a different length. Is there any easy way to do this and have the videos output in a new folder trimmed folder in the original folder ?

  


  Thank you.

  


• cutting video using ffmpeg cannot produce videos with specified length

  22 juin 2021, par david

  I have some mp4 videos and I want to split them into 2-second videos. my GOP is 2 Sec. for this aim I use the following command :

  


  ffmpeg -i input.mp4 -c copy -map 0 -segment_time 00:00:02 -f segment -reset_timestamps 1 output%03d.mp4


  


  but after splitting, my new videos have different duration times. some of them are 4 Sec, one of them is 3.67 Sec. why the duration time is different from the thing I specified in command ? my command is wrong ?
is it possible to split based on frame number ? for example each 120 frame ?

  


• Export .osp OpenShot project to ffmpeg script as workaround to video export freeze or crash by swap hell

  30 août 2018, par 1000i100

  I have a big video rush 35".

  With OpenShot i’ve cut more than 30 small sequences and concatenate them into one 25" sequence.

  Now i try to export the result as video file but OneShot randomly crash or freeze during the export/encoding between 40% and 80% so after more than an hour of encoding. It look to be a memory leek and a swap saturation with memory allocation deny because no space left.

  I’ve tried with x264(mp4) and vp8(webm) encoding, but nothing worked.

  I’ve opened the .osp file, it’s a big json file with all the clips referred like this :

  {
  
    clips:[
  
      {
  
        title: "",
  
        start:<seconds>.<decimals>,
  
        end:<seconds>.<decimals>,
  
        position:<seconds>.<decimals>
  
      }
  
    ]
  
  }
  
  </decimals></seconds></decimals></seconds></decimals></seconds>

  • title if not renamed is the inputFileName.
  • start clip start time from the input file beginning
  • end clip end time from the input file beginning
  • position clip start position in the output file timeline

  I’ve read ffmpeg can extract video parts / subclip / sequences with cut function :

  ffmpeg -ss 00:00:09.000 -i input.mp4 -to 00:00:20 output.mp4

  Time can be hh:mm:ss.xxx or hh:mm:ss or any amount of seconds, allowing decimals.

  I’ve also read ffmpeg can concat sequences :

  ffmpeg -i "concat:input1.ts|input2.ts|input3.ts" output.ts

  So, how to encode my video with these project data ?