Answers.Body: <p>You need to re-encode all vids to crop the bottom 100 px - you have to decide which codecs you want to use.... and think about the filters - this depends on the sourcefile.... The ffmpeg code is:</p>
  
  <pre><code>ffmpeg -i INPUTFILE -ss 00:00:04 -map v -vf "crop=out_h=in_h-100:y=0" -c:v libx264 -c:a copy OUTPUTFILE 
  </code></pre>
  
  <p>The best would be to iterate the INPUTFILEs by a for-loop. put the new files in a new directory and you won't have any problems with the names.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2018-04-30T14:46:23.497Z
Answers.Text: First of all, a big thank you for helping me! Now, as I said I'm totally new at this. To use this code, I have to put it in the Ffmpeg console? If I put it in parameter, I get an error. I suppose INPUTFILE refers to the name of the file. I see you mention iterate the inputiles by a fo-loop. How do I do this. Also, thank you for your patience with me :D
Answers.UserDisplayName: Tom Van 't Veld
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2018-04-30T14:37:04.950Z
Answers.LastActivityDate: 2018-04-30T14:37:04.950Z
Answers.UserDisplayName: Muppetshow12
Body: <p>How do I crop and resize about 6000 mp4-movies? They are all 1280 x 800. I need to crop the bottom 100 px and remove the first 4 seconds of each movie. Can this be done with ffmpeg?</p>
  
Tags: <conversion>
Title: Resize, crop, and trim videos
UserDisplayName: Tom Van 't Veld
ThreadText: # Resize, crop, and trim videos
  
  (Asked by: username_0 on 2018-04-30)
  
  How do I crop and resize about 6000 mp4-movies? They are all 1280 x 800. I need to crop the bottom 100 px and remove the first 4 seconds of each movie. Can this be done with ffmpeg?
  
  **Tags:** conversion
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2018-04-30. Score: 1
  
  You need to re-encode all vids to crop the bottom 100 px - you have to decide which codecs you want to use.... and think about the filters - this depends on the sourcefile.... The ffmpeg code is:
  
  ```
  ffmpeg -i INPUTFILE -ss 00:00:04 -map v -vf "crop=out_h=in_h-100:y=0" -c:v libx264 -c:a copy OUTPUTFILE 
  
  ```
  
  The best would be to iterate the INPUTFILEs by a for-loop. put the new files in a new directory and you won't have any problems with the names.
  
  > **Comments:**
  > **username_0**: First of all, a big thank you for helping me! Now, as I said I'm totally new at this. To use this code, I have to put it in the Ffmpeg console? If I put it in parameter, I get an error. I suppose INPUTFILE refers to the name of the file. I see you mention iterate the inputiles by a fo-loop. How do I do this. Also, thank you for your patience with me :D  
  
  ---
  
  