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• 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 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 works on Console but doesn't work in PHP script on Ubuntu

  16 novembre 2016, par Victor Ferreira

  I have this aplication where I need to convert video files to MP4 and then compress it. I’m trying to use FFMPEG to get this to work. Tried the command lines in the console and it works great

  Converting

  ffmpeg -i teste.avi teste.mp4

  Compressing

  ffmpeg -i teste.mp4 -acodec mp2 teste.mp4

  But when I do the same within a PHP script, it starts yelling that something called GLIBCXX is not installed. This is the error :

  ffmpeg: /opt/lampp/lib/libstdc++.so.6: version `GLIBCXX_3.4.11' not found (required by /usr/lib/i386-linux-gnu/libjack.so.0)
  
  ffmpeg: /opt/lampp/lib/libstdc++.so.6: version `GLIBCXX_3.4.9' not found (required by /usr/lib/i386-linux-gnu/libjack.so.0)
  
  ffmpeg: /opt/lampp/lib/libstdc++.so.6: version `GLIBCXX_3.4.15' not found (required by /usr/lib/i386-linux-gnu/libjack.so.0)
  
  ffmpeg: /opt/lampp/lib/libstdc++.so.6: version `GLIBCXX_3.4.9' not found (required by /usr/lib/i386-linux-gnu/libzmq.so.3)
  
  ffmpeg: /opt/lampp/lib/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by /usr/lib/i386-linux-gnu/libzmq.so.3)
  
  ffmpeg: /opt/lampp/lib/libstdc++.so.6: version `GLIBCXX_3.4.11' not found (required by /usr/lib/i386-linux-gnu/libopencv_core.so.2.4)
  
  ffmpeg: /opt/lampp/lib/libstdc++.so.6: version `GLIBCXX_3.4.9' not found (required by /usr/lib/i386-linux-gnu/libopencv_core.so.2.4)
  
  ffmpeg: /opt/lampp/lib/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by /usr/lib/i386-linux-gnu/libopencv_core.so.2.4)

  This is my script

  $r = shell_exec("ffmpeg -i $file_path $output_path 2>&1"); //convert
  
  $r = shell_exec("ffmpeg -i $file_path -acodec mp2 $file_path 2>&1"); //compress

  I’m running the script on Ubuntu

  @edit
  I can run, for example, shell_exec(’ls’)