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• FFMPEG File Output is Still in Use By a Process

  6 mai, par Tyler Bacon

  I am trying to complete this part of my program. In this section, I am trying to speed up or slow down a video based on a factor variable. Once it's done, I use moviepy to turn it into a VideoFileClip, then I delete the file.

  


      if factor <= 2:
        system("ffmpeg -i " + paths[dex] + " -vf setpts=" + str(vfactor) + "*PTS -an ./Media/Videos/temp.mp4")
        system("ffmpeg -i " + paths[dex] + " -filter:a atempo=" + str(factor) + " -vn ./Media/ShortSounds/temp.mp3")
    elif 2 < factor < 4:
        factor = round(sqrt(factor), 1)
        system("ffmpeg -i " + paths[dex] + " -vf setpts=" + str(vfactor) + "*PTS,setpts=" + str(vfactor) + "*PTS  -an ./Media/Videos/temp.mp4")
        system("ffmpeg -i " + paths[dex] + " -filter:a atempo=" + str(factor) + ",atempo=" + str(factor) + " -vn ./Media/ShortSounds/temp.mp3")
    elif factor > 4:
        raise Exception("File " + paths[dex] + " is too long.")
    t = VideoFileClip("./Media/Videos/temp.mp4")
    t.audio = AudioFileClip("./Media/Videos/temp.mp3")
    templist.append(t)
    remove("./Media/Videos/temp.mp4")


  


  However, when the code gets to the deletion command, it has the following error :

  


  PermissionError: [WinError 32] The process cannot access the file because it is being used by another process: './Media/Videos/temp.mp4'


  


  What's strange is, I can see the temp.mp4 file, and it runs just fine. I never get this error while manually running the temp.mp4 file.

  


  I have tried the following :

  


  

  • Waiting 5, 10, and 20 seconds before deleting the file.

  


  • Running "taskkill -f -im ffmpeg.exe" before deleting the file

  


  • I went through the debugger, and right before the deletion, I checked in task manager to see if ffmpeg was still running, and it wasn't.

  


  


  Do you guys have any idea what could be holding this up ? My code worked previously when I was trying to just do audio, but I am trying it with video and this is happening.

  


• JavaCV on Android with ARMv6

  26 février 2014, par xoidberg

  I got problems getting JavaCV (http://code.google.com/p/javacv/) to run on my Samsung Galaxy S5570i device. According to this site http://www.gsmarena.com/samsung_galaxy_pop_plus_s5570i-4544.php this device has an ARMv6 CPU. I tried several deprecated versions of JavaCV that still include builds for ARMv5, because I had problems building it on my own. None of this versions worked on my device. I also tried running this on a virtual device which should simulate ARMv5 as long as I know. I always get exceptions that libraries couldn't be found, e.g. : "Caused by : java.lang.UnsatisfiedLinkError : Cannot load library : reloc_library[1312] : 1306 cannot locate '_ZNK2cv6KDTree14findOrthoRangeERKNS_11_InputArrayES3_RKNS_12_OutputArrayES6_S6_'.
  I know that it is not recommended to use JavaCV on ARMv5 or ARMv6 CPUs, but I want to implement a feature in my app and provide it also for older CPUs, even if it's slower than on newer ones.
  So what could be the problem ? Did I use wrong versions or what versions should I use ?
  Hope to get an answer here.

  Thanks in advance !

  xoidberg

• avcodec/flacdec : Avoid undefined shift in error case

  9 mars 2021, par Michael Niedermayer

  avcodec/flacdec : Avoid undefined shift in error case
  Fixes : flac_1040988
  Reported-by : Thomas Guilbert <tguilbert@google.com>
  
  Reviewed-by : Thomas Guilbert <tguilbert@google.com>
  
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavcodec/flacdec.c