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• Processing time for adding an overlay to video using ffmpeg is too long in Android

  23 septembre 2015, par Abhimanyu

  I am working on an app in which I am using android-ffmpeg-java library. I am using filter_complex to add a video overlay on static image but processing time it is taking is too long.
  Can you please suggest any other library that could help me or how can i improvise the current code

  public Clip createOverlayVideo (String backGroungImagePath,String fiveSecsGifVideoPath , String outputPath, int x,int y,int bgwidth,int bgHeight,ShellCallback sc) throws Exception
  
      {
  
  
  
          Log.d("FfmpegController", "Width " + bgwidth);
  
          Log.d("FfmpegController", "Height " + bgHeight);
  
          Clip result = new Clip ();
  
          ArrayList<string> cmd = new ArrayList<string>();
  
          cmd = new ArrayList<string>();
  
          cmd.add(mFfmpegBin);
  
  
  
          cmd.add("-y");
  
  
  
          cmd.add("-loop");
  
          cmd.add("1");
  
  
  
          cmd.add(Argument.FRAMERATE);
  
          cmd.add("25" );
  
          //-profile:v high -preset slow -b:v 500k
  
  
  
          cmd.add("-i");
  
          cmd.add(backGroungImagePath);
  
  
  
          Log.e("X and Y value ==== ", "overlayAdditionOnImageConvertToVideo" + x + "   y == " + y);
  
  
  
          cmd.add("-i");
  
          cmd.add(fiveSecsGifVideoPath);
  
  
  
          cmd.add("-filter_complex");
  
  
  
  
  
          //change x and y coordinate to 0 if x or y coordinate is neg
  
          if(x&lt;0)
  
              x = 0;
  
          if (y &lt; 0)
  
              y = 0;
  
          //cmd.add("\"");
  
          cmd.add("[0:v]scale=" + bgwidth + ":" + bgHeight + "[scaled];[scaled][1:v]overlay=" + x + ":" + y);
  
          //cmd.add("\"");
  
          Log.d("", "Command    " + "[0:v]scale=" + bgwidth + ":" + bgHeight + "[scaled];[scaled][1:v]overlay=" + x + ":" + y);
  
          Log.d("value", "Overlay command [0:v][1:v]overlay=" + x + ":" + y);
  
  
  
          cmd.add("-shortest");
  
  
  
          cmd.add("-t");
  
          cmd.add("5");
  
  
  
  
  
          cmd.add("-c:a");
  
          cmd.add("copy");
  
  
  
          cmd.add("-b:a");
  
          cmd.add("128k");
  
  
  
          cmd.add(Argument.FRAMERATE);
  
          cmd.add("25" );
  
  
  
          cmd.add("-preset");
  
          cmd.add("ultrafast");
  
  
  
          /*cmd.add("-b:v");
  
          cmd.add("512k");
  
  
  
          cmd.add("-minrate");
  
          cmd.add("512k");
  
  
  
          cmd.add("-maxrate");
  
          cmd.add("512k");
  
  
  
          cmd.add("-bufsize");
  
          cmd.add("512k");
  
  
  
          cmd.add("-f");
  
          cmd.add("mp4");*/
  
  
  
          cmd.add("-y");
  
  
  
          result.path = outputPath;
  
  
  
  
  
          cmd.add(new File(result.path).getCanonicalPath());
  
          Log.d("FFMPEG", "createOverlayVideo Command " + cmd);
  
          execFFMPEG(cmd, sc);
  
  
  
          return result;
  
      }
  
  </string></string></string>

• Aws lambda timeout while processing a 1gb file using ffmpeg

  12 novembre 2020, par jsdbt

  I have set timeout to 15min and memory to full 3GB.

  


  I am passing s3 url of a 1gb video file to ffmpeg. File is 30min long. Processing it is taking longer that 15min in aws lambda resulting in timeout error. I need to add subtitles and text to the videos.

  


  What other options I have to process large and LONG video files using ffmpeg, preferably serverless ?

  


• Processing files on server before moving it to S3

  16 septembre 2015, par ahmgeek

  The idea behind the application is to record videos from webcams with WebRTC, the problem is Chrome sending back two blobs : audio wav and video webm so I do processing on both of them to make a final .mp4 with fmpeg library from rails.

  I upload both blobs with dragonfly gem, and do the processing with the tilde command :

  ffmpeg -y -i #{avi_name}.avi -i #{audio_name}.mp3  -c:v libx264 -crf 19 -preset slow -c:a aac -strict experimental -b:a 192k -ac 2 #{avi_name}.mp4

  That works fine on local development, on production it’s impossible to do it on S3 buckets - our videos and images goes to s3 bucket - I’ve tried it with no hopes. Also I’ve searched to see if anyone made any success, but no.

  So I may upload it to our server acting as a temp server, then move it to S3. I use dragonfly for uploading and serving images, so it handles the upload nicely, but how can I achieve the goal with it ?