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• ffmpeg dont work like console

  27 février 2014, par theroqco

  This works fine at console

  ffmpeg -y -i a.mp4 -codec:v libx264 -profile:v high -vf scale=-1:360 -b:v 300k -maxrate 500k -bufsize 500k c.mp4 2> output.txt

  then i try this live. didnt get a-log.txt file.

  Set WScript = Server.CreateObject("WSCRIPT.SHELL")
  
  
  
      WScript.Run("C:\Inetpub\wwwroot\ffmpegfile\bin\ffmpeg.exe -y -i C:\Inetpub\wwwroot\videos\a.mp4 -codec:v libx264 -profile:v high -vf scale=-1:360 -b:v 300k -maxrate 300k -bufsize 500k C:\Inetpub\wwwroot\videos\new\a.mp4 2> C:\Inetpub\wwwroot\videos\new\a-log.txt")
  
  
  
      Set WScript = nothing

  How can i run this.
  thanks.

• FFMPEG for Android does not work properly when overlaying picture

  12 mars 2020, par Alejandro Sanchez

  Whenever I run this FFMPEG command on Android to overlay a picture on a video using the FFMpeg Android library :

   "-i",
  
                  realPathVideo,
  
                  "-i",
  
                  realPathImage
  
                  ,
  
                  "-filter_complex",
  
                  "overlay=0:0",
  
                  "-codec:a",
  
                  "copy",
  
                  dest.getAbsolutePath()

  it never actually works, since it always ends up in "onFinish
  " and never "onSuccess". I don’t know why, but somehow this command doesn’t work properly, although it never shows me an error message. To ensure that the parameters are right I will show you how I get them :

  realpathvideo is : /storage/emulated/0video.mp4
  realpathimage is : /storage/emulated/0/VideoOverlay.jpg
  output directory is : /storage/emulated/0/appname/temporaryVideoFileWithOverlay.mp4

  realPathVideo is derived from a File which is made by moving the result of a camera activity to external storage with the method :

  public static void copyFile(File src, File dst) throws IOException
  
  {
  
      FileChannel inChannel = new FileInputStream(src).getChannel();
  
      FileChannel outChannel = new FileOutputStream(dst).getChannel();
  
      try
  
      {
  
          inChannel.transferTo(0, inChannel.size(), outChannel);
  
      }
  
      finally
  
      {
  
          if (inChannel != null)
  
              inChannel.close();
  
          if (outChannel != null)
  
              outChannel.close();
  
      }
  
  }

  where src is the video result saved in internal storage and dst the external storage file.

  The bitmap image overlay File is saved like this :

  realpathImage is derived from a bitmap File saved by using :

      private Uri saveOverlay(Bitmap bitmap) {
  
      File file;
  
      // Get the external storage directory path
  
      String path = Environment.getExternalStorageDirectory().toString();
  
      // Create a file to save the image
  
      file = new File(path, "VideoOverlay" + ".jpg");
  
  
  
      try {
  
  
  
          OutputStream stream = null;
  
  
  
          stream = new FileOutputStream(file);
  
  
  
          bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
  
  
  
          stream.flush();
  
  
  
  
  
          stream.close();
  
  
  
      } catch (IOException e) // Catch the exception
  
      {
  
          e.printStackTrace();
  
      }
  
  
  
      // Parse the saved image path to uri
  
      Uri savedImageURI = Uri.parse(file.getAbsolutePath());
  
      return savedImageURI;
  
  }

• ffmpeg command does not work when run from .sh file

  19 novembre 2020, par Felipe Hurtado

  I am trying to run an ffmpeg command from a shell file but I am getting the following error :

  


  'NULL @ 0x343e9c0] Unable to find a suitable output format for '


  


   : Invalid argument

  


  Below the ffmpeg commnad

  


  ffmpeg -i "rtsp://admin:adminCTZSDS@192.168.0.5/1" -s 600x400 -framerate 20 -b:v 16k -preset slow -acodec libmp3lame -ar 11025 -crf 20 -f flv rtmp://localhost:1935/live/camara2 


  


  and this is the content of the shell file :

  


  #!/bin/bash
#script streaming
ffmpeg -i "rtsp://admin:adminCTZSDS@192.168.0.5/1" -s 600x400 -framerate 20 -b:v 16k -preset slow -acodec libmp3lame -ar 11025 -crf 20 -f flv rtmp://localhost:1935/live/camara2 
        


  


  the command works if I run it manually in a terminal