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• How to fix : PHP crashes when executing shell command on Windows Command Prompt

  21 juin 2019, par Nou

  PHP crashes when I run my shell_exec() function. And when it doesn’t crash, Windows Command Prompt denies permission to execute the code. The goal is to use ffmpeg to split audio files one directory and put them in a different directory. NGINX, PHP, and ffmpeg are all setup on a VM if that’s a factor.

  I restart the VM and re-setup PHP whenever it crashes as a fix. But this solution is far from ideal.

      if($getFileType == 'flac' || $getFileType == 'mp3' || $getFileType == 'm4a'){
  
          #Make the directory where split audio files will be stored
  
          create_dir($splitAudioDir);
  
  
  
          #Start cmd.exe and use ffmpeg to split audio files then put them in another directory
  
          $shellCommand = shell_exec('start cmd.exe @cmd /k ffmpeg -i '.$dirFlitherPathOnly.' -map 0 -codec copy -f segment -segment_time 30 -reset_timestamps 1 '.$splitAudioDir.'/'.'split_%03d.mp4 & @cmd /k set');
  
  
  
          #Log full command ran from $shellCommand
  
          error_log(print_r("\n"."Command to run: ".$shellCommand."\n", true), 3, "error.log");
  
      }

  I expect the audio files to split then appear in the directory I set for them.

  I don’t have the error message for Windows Command Prompt as I’ve closed it already. However, it says something along the lines of "permission denied" in red.

• dxva2 : Keep code shared between dxva2 and d3d11va under the correct #if

  12 décembre 2016, par Diego Biurrun

  dxva2 : Keep code shared between dxva2 and d3d11va under the correct #if
  This partially reverts commit ac648bb835edd3f67bda2267d0e72e5e582eb5a1.
  

  • [DBH] libavcodec/dxva2_internal.h

• Questions about shared objects through multithreading (Feat. FFmpeg)

  24 juillet 2018, par Junburg

  I am now working on the ability to combine cut and cut files every time a user requests a sound recording and a recorded file. Each time a user request comes in, a new thread performs the above process. But FFmpeg can only issue one command at a time, which is a problem.

  Here are some of the reasons I found : Creates a string array for the next command when the thread that is processing the command breaks the finish callback. In the meantime, it seems to be running FFmpeg on another thread. I tried to synchronize the getInstance method of FFmpeg to synchronize, or synchronized to the execute method, but the error was not resolved. How do you handle FFmpeg’s execute ? How do you approach it ?

  If there is anyone you know, I would like to thank you for your encouragement.

  Use open source library : https://github.com/WritingMinds/ffmpeg-android-java

  I can not post the code because of the character limit ...
  The onFinish callback is fired when you run the command to truncate the original mr file. At this time, we also perform a command to cut the voice of the singer. And once again the onFinish callback pops up, the user performs the task of joining the voice singer voice mr. It seems that other threads use FFmpeg between defining the command.