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• C# ffmpeg not working

  24 février 2018, par ViVi

  I am trying to convert an mp3 file into a flac file using ffmpeg for c#.
  I downloaded the ffmpeg.exe and placed it inside the bin/debug folder of my project.

  My input folder is testmp3 and output folder is testmp3OUTPUT. These folders are located within the debug folder itself. testmp3 folder got mp3 files.

  This is the code I am using :

  string inputfile = @"..\\testmp3\\349.mp3";
  
  string outputfile = @"..\\testmp3OUTPUT\\349.flac";
  
  Process myProcess = new Process();
  
  ProcessStartInfo p = new ProcessStartInfo();
  
  string sArgs = string.Format(" -i {0} -f wav - | neroAacEnc -ignorelength -q 0.5 -if - -of {1}", inputfile, outputfile);
  
  p.FileName = "ffmpeg.exe";
  
  p.CreateNoWindow = true;
  
  p.RedirectStandardOutput = true;
  
  //p.WindowStyle = ProcessWindowStyle.Normal
  
  p.UseShellExecute = false;
  
  p.Arguments = sArgs;
  
  myProcess.StartInfo = p;
  
  myProcess.Start();
  
  myProcess.WaitForExit();
  
  //Write details about call 
  
  myProcess.StandardOutput.ReadToEnd();

• Non stop stream to rtmp with FFMPEG

  13 février 2020, par Надежда Перемен

  I want to stream to RTMP with FFMPEG. I need to dynamically change next play file, for that i use web urls for my localhost.

  I have PHP file located : http://127.0.0.1/mp3.php

  $file = '1.mp3';
  
  
  
  $mime_type = "audio/mpeg, audio/x-mpeg, audio/x-mpeg-3, audio/mpeg3";
  
  
  
  if(file_exists($file)){
  
      header('Content-type: {$mime_type}');
  
      header('Content-length: ' . filesize($file));
  
      header('Content-Disposition: filename="' . $file);
  
      header('X-Pad: avoid browser bug');
  
      header('Cache-Control: no-cache');
  
      readfile($file);
  
  }else{
  
      header("HTTP/1.0 404 Not Found");
  
  }

  And i run ffmpeg with this command line :

  ffmpeg -re -stream_loop -1 -i logo.png -stream_loop -1 -i http://127.0.0.1/mp3.php -ab 320k -c:v libx264 -f flv "rtmp://ms......."

  This works, but it playing only once time and FFMPEG returns an error :

  Seek to start failed
http://127.0.0.1/mp3.php: Function not implemented

  How can i fix it ?

• 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 ?