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• Using Python script to cut long videos into chunks in FFMPEG

  23 février 2016, par Michael Hamilton

  Starting off by saying I’m not a programmer, but I really need the application this Python script I found says it can do.

  Auto-Splitting Script by Antarctic Nest of Icephoenix

  Basically I have a directory of long .MP4s that need to be cut into equal parts based on a total running time of 3 hours 15 minutes. For example, I would have an 8 hour video that needs to be cut into smaller parts each under 3:15:00.

  We’ve been manually crating FFMPEG codes to do this, but I found the Python script above that seems like it will do what we are needing. The issue is that I have no Python experience. I don’t know where in the script to enter in the folder path with the videos, or where to specify my codecs, or where to tell the program that the max time for each video chunk is 3:15:00.

  I’m on a 64-bit windows system working in command prompt

  Here’s what I have done :

  • Installed python 3
  • downloaded the script
  • I can click on the script to see the cmd window flash to indicate it’s running
  • I enter "C :\Python34\python.exe V :\ffmpeg\ffmpeg-split.py" into cmd

  • output is

    File "V :\ffmpeg\ffmpeg-split.py", line 16
    print "Split length can’t be 0"

      SyntaxError: Missing parentheses in call to 'print'

  I have no idea where to go from here. It seems like the script is loading properly, but I haven’t entered my variables. Any help with where to put the information would be appreciated.

  Here is the FFMPEG code we usually use :

  ffmpeg -i V :\ffmpeg\88518_63c392af.mp4 -vcodec libx264 -acodec copy -vf fps=fps=30000/1001 -ss 00:05:01.000 -t 02:43:49.000 V :\events\88518.mp4

  The ffmpeg codes we use :

  -i is a .mp4

  -vcodec h.264 codec

  -acodec should be “copy” or can be “libvo_aacenc”

  -vf fps=30000/1000 a forced fps of 29.97

  -ss is start time (we would use this to manually cut into parts along with -t)

  -t is duration (we would calculate the duration for each part as the total run time divided by the equal time under 3:15:00 be it two, three, or four parts)

  Thank you a million dollars

• How to loop ffmpeg in script [duplicate]

  6 mai 2020, par serge lesnichy

  Good afternoon !
  
There is a list of clips that I need to download partially, indicating the beginning (second column) and end (third column) and the name under which it is saved (fourth column).

  



  url1 00:14:00 00:15:00 name1
url2 00:09:00 00:10:10 name2
url3 00:14:00 00:15:00 name3
url4 00:09:00 00:10:20 name4

  



  and there is a script with which i need to download this clips.

  



      #!/bin/bash
    cat ./list | while read line; do
    url=$(echo $line | awk '{print $1}');
    start=$(echo $line | awk '{print $2}');
    end=$(echo $line | awk '{print $3}');
    name=$(echo $line | awk '{print $4}');
    clip=$(echo "ffmpeg -ss "$start" -to "$end" -i "\$\(youtube-dl -g \"$url\"\)" -c copy ./"\""$name"\"".mp4");
    bash -c "$clip"
    done;

  



  After starting, only the first clip is downloaded and the cycle ends.
  
How to continue script execution ?
  
Tell me where I messed up ?
  
Thank !

  


• Removing file in windows batch script not working

  13 février 2020, par BluePrint

  I’m trying to create a batch script for trimming 25 seconds from the beginning of all mp4 files in a folder. The batch script is located in the same folder as the files, and there is a folder called trimmed in the same folder. This is my script so far :

  @echo off
  
  setlocal DisableDelayedExpansion
  
  
  
  :promptdel
  
  set /p delorig=Delete original file (default no)? [Y/N]: 
  
  
  
  if not defined delorig (
  
    set delorig=N
  
  )
  
  
  
  set "vartwo="&for /f "delims=YNyn" %%i in ("%delorig%") do set vartwo=%%i
  
  
  
  if defined vartwo (
  
    echo Please state Y or N!
  
    goto :promptdel
  
  )
  
  
  
  for %%a in ("*.mp4") do (
  
    echo Starting %%a
  
  
  
    rem "Need to rename since file names may contain whitespaces"
  
    ren "%%a" "working.mp4"
  
    ffmpeg -loglevel panic -hide_banner -i "working.mp4" -ss 00:00:25.000 -c:v copy -c:a copy "trimmed\%%a"
  
    ren "working.mp4" "%%a"
  
  
  
    echo %delorig%
  
    if %delorig% == "Y" (del "%%a" /f /q)
  
    if %delorig% == "y" (del "%%a" /f /q)
  
  
  
    echo %%a finished!
  
  )
  
  
  
  pause

  My problem is that the original file does not get removed regardless of if I input y/Y or n/N. What am I doing wrong ?