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• How do I add environment variables to path in python ?

  13 mai 2024, par JustThisWeeb

  I made a python script to install FFmpeg and add it to path in Windows, but it seemed to have no effect at all. It doesn't give me any errors or anything. It literally just does nothing at all.

  


  This was the code I used :

  


  os.environ["Path"] += f"{os.getcwd()}/ffmpeg-7.0-essentials_build/bin"
os.environ.update()


  


  and I tried several iterations of "path" including "PATH", "Path", "path" and none of them made a difference.
I also tried making a new variable :

  


  new_environ = os.environ["Path"] + f"{os.getcwd()}/ffmpeg-7.0-essentials_build/bin"
os.environ["Path"] = new_environ
os.environ.update()


  


  Which again made no difference.

  


  I know there are other questions like that, but to be honest none of the ones I saw were helpful.

  


• avcodec/iff : Use unsigned to avoid compiler warning

  11 juillet 2022, par Andreas Rheinhardt

  avcodec/iff : Use unsigned to avoid compiler warning
  GCC 12 apparently believes that negative palette sizes are
  
  possible (they are not, as this has already been checked during
  
  init) and therefore emits a -Wstringop-overflow= for the memcpy.
  
  Using unsigned avoids this.
  
  (To be honest, there might be a compiler bug involved.)
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
  

  • [DH] libavcodec/iff.c

• FFMPEG : merging multiple audio (MP3) and single image convert them into a video [on hold]

  9 décembre 2013, par user3027136

  I'm tired of searching for this problem. I have found 2 solutions here, but both work only partially.
  What I want to do is to convert all the MP3 inside a folder (if possible subfolders, too) to avi or anything else accepted by Youtube. I have created 2 .bat that should do this (according to the other threads here). They don't, one of them creates the avi without the image (black) and the other seems to capture the screen.
  Here they are.
  If you know about ffmpeg please point me to the right direction. Thank you.

  This one uses mp3info.exe - to be honest I have no idea what mp3info does, I just guess it finds the lenght of the song to be mathed later with the length of the video.

  @echo off
  
  for %%a in (*.mp3) do (
  
  for /f "delims=" %%b in ('mp3info.exe -p %%S "%%a"') do (
  
  ffmpeg -i "%%a" -loop 1 -r 1 -i "cover.jpg" -acodec copy "%%~na.mp4" -t %%b
  
  )
  
  )

  This seems more simple, runs faster but captures the screenshot and ignores the cover.jpg file.

  @echo off
  
  for %%A IN (*.mp3) DO ffmpeg -i "%%A" -i "cover.jpg" "%%A.mpg"
  
  done

  mp2info.exe, cover.jpeg and the .bat scripts are in the same folder with the .mp3 files.