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• I am trying add text and image over video using FFmpeg lib in androoid studio

  21 juin 2019, par vikram

  I am using FFmpeg lib for add text over video and add image over video but could not get successful. I am testing this one in a real device.

  I am have already tried 2 commands for add text and add image over video but could not get proper output

  String command[]={"ffmpeg","-i",inputpath,"-vf", "drawtext="+"\""+"fontfile=/sdcard/retro.ttf: text='Test Text'"+"\"",outputpath};
  
  
  
  
  
  String addimg[]={"ffmpeg","-i", inputpath,"-i", imagepath ,"-filter_complex", "[0:v][1:v] overlay=25:25:enable='between(t,0,10)'" ,"-pix_fmt", "yuv420p", "-c:a copy",outputpath};
  
  
  
  public void LoadFFmpegLibrary()
  
  {
  
      if(ffmpeg==null)
  
      {
  
          ffmpeg = FFmpeg.getInstance(MainActivity.this);
  
          try {
  
              ffmpeg.loadBinary(new LoadBinaryResponseHandler() {
  
  
  
                  @Override
  
                  public void onStart() {
  
                      Log.e("ffmpeg","Start to load");
  
                  }
  
  
  
                  @Override
  
                  public void onFailure() {
  
                      Log.e("ffmpeg","failed to load");
  
                  }
  
  
  
                  @Override
  
                  public void onSuccess() {
  
                      Log.e("ffmpeg","load Successfully");
  
                      ExcuteFfmpefLibrabry(command);
  
                      //    Toast.makeText(MainActivity.this,"Success",Toast.LENGTH_LONG).show();
  
                  }
  
  
  
                  @Override
  
                  public void onFinish() {
  
                      Log.e("ffmpeg","failed to load");
  
                  }
  
              });
  
          } catch (FFmpegNotSupportedException e) {
  
              // Handle if FFmpeg is not supported by device
  
              Log.e("ffmpeg",e.toString());
  
          }
  
  
  
      }
  
  
  
  
  
  }
  
  
  
  public void ExcuteFfmpefLibrabry(String command[])
  
  {
  
  
  
      ffmpeg = FFmpeg.getInstance(MainActivity.this);
  
      try {
  
          // to execute "ffmpeg -version" command you just need to pass "-version"
  
          ffmpeg.execute(command, new ExecuteBinaryResponseHandler() {
  
  
  
              @Override
  
              public void onStart() {
  
                  Log.e("ffmpeg","Exaction Start");
  
              }
  
  
  
              @Override
  
              public void onProgress(String message) {}
  
  
  
              @Override
  
              public void onFailure(String message) {
  
                  Log.e("ffmpeg","failed to Excute Command");
  
                  Log.e("ok",message);
  
              }
  
  
  
              @Override
  
              public void onSuccess(String message) {
  
                  Log.e("ffmpeg","Video Edited Successfully");
  
                  Log.e("ok",message);
  
                  // ExcuteFfmpefLibrabry(tetxcommand);
  
                  Toast.makeText(MainActivity.this,"Success",Toast.LENGTH_LONG).show();
  
  
  
              }
  
  
  
              @Override
  
              public void onFinish() {
  
  
  
              }
  
          });
  
      } catch (FFmpegCommandAlreadyRunningException e) {
  
          Log.e("ffmpeg",e.toString());
  
      }
  
  }

  Unable to find a suitable output format for ’ffmpeg’
  ffmpeg : Invalid argument

  I am getting an error ---> Unable to find a suitable output format for 'ffmpeg' ffmpeg: Invalid argument

• C# - Animated text in video

  5 juillet 2016, par Nabeel Zafar

  I have a video and I want to add text on it on certain time and with certain animations.

  I just need to know the method to do this or just the technology name (some tips would be great).

  So far I found the FFMPEG library, it is very good for many video related stuff but not for animating text in video. I also tried many nuget libraries but could not get anything related.

  Text animations I need includes fade, bounce,movement ,flip

  ANY kind of help will really be appreciated.

• How to increase line-height of text using drawtext with FFMPEG ?

  21 octobre 2020, par Romualdo Arrechea Hernández

  I'm using the current code to create a video with some text of several lines. When executed I'm receiving a video with the text joined vertically because of lacking space. How do I do to add line-height space ?

  



  ffmpeg -i videoInput.mp4 \
       -vf drawtext="./font/Roboto/Roboto-Bold.ttf: \
           text='testing text \ntesting text \ntesting text':\
           fontcolor=yellow:\
           fontsize=36:\
           box=1:\
           boxcolor=black@0.5: \
           boxborderw=160:\
           x=(w-text_w)/2:\
           y=(h-text_h)/2"\
    -codec:a copy \
    videoOutput.mp4