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• FFMPEG Add watermark to MP4

  5 décembre 2019, par Junaid Farooq

  I have this command to add watermark to an mp4

  ffmpeg -i junai-blvaz.mp4 -i evercam-logo-white.png -filter_complex "[1]scale=iw/2:-1[wm];[0][wm]overlay=x=main_w-overlay_w-10:y=main_h-overlay_h-10" -codec:a copy output.mp4

  But I am creating the video using

  ffmpeg -r 6 -i /tmp/%d.jpg -c:v h264_nvenc -r 6 -preset slow -bufsize 1000k -pix_fmt yuv420p -y junai-blvaz.mp4

  Is there any way to merge this command of adding watermark

  -i evercam-logo-white.png -filter_complex '[1]scale=iw/2:-1[wm];[0][wm]overlay=x=main_w-overlay_w-10:y=main_h-overlay_h-10'

  to the very first command through which mp4 video has been created ?

• How to insert images and text in video with ffmpeg - java

  4 février 2017, par MaF

  String[] code = new String[]{"ffmpeg", "-i","D:/ffmpeg/20170201_164127.mp4",
  
  
  
              "-i","D:/ffmpeg/cc.png", "-filter_complex",
  
  
  
              "[0:v][1:v]overlay=main_w-overlay_w-5:main_h-overlay_h-5",
  
              "drawtext=fontfile=/ffmpeg/Arial.ttf:text='TESTING'fontcolor=white@1.0:fontsize=70:x=10:y=H-th-10:box=1:boxcolor=black@0.5:boxborderw=5:x=10:y=H-th-10",
  
  
  
              "[out]","-map", "[out]", "-map", "2:0",
  
              "-acodec","mp3", "D:/ffmpeg/test7.mp4"};
  
  
  
  
  
  
  
              Process processDuration = new ProcessBuilder(code).redirectErrorStream(true).start();
  
  
  
              StringBuilder strBuild = new StringBuilder();
  
  
  
              try (BufferedReader processOutputReader = new BufferedReader(new InputStreamReader(processDuration.getInputStream(), Charset.defaultCharset()));) {
  
  
  
                  String line;
  
  
  
                  while ((line = processOutputReader.readLine()) != null) {
  
  
  
                      strBuild.append(line + System.lineSeparator());
  
  
  
                  }
  
  
  
                  processDuration.waitFor();
  
  
  
              }
  
  
  
              String outputJson = strBuild.toString().trim();
  
  
  
              System.out.println(outputJson);
  
  
  
              }

  When i use only images the code is correctly. But when I use all the code this happens :

  [NULL @ 00000000006abe60] Unable to find a suitable output format for
  ’drawtext=fontfile=/ffmpeg/Arial.ttf:text=’TESTING’fontcolor=white@1.0:fontsize=70:x=10:y=H-th-10:box=1:boxcolor=black@0.5:boxborderw=5:x=10:y=H-th-10’
  drawtext=fontfile=/ffmpeg/Arial.ttf:text=’TESTING’fontcolor=white@1.0:fontsize=70:x=10:y=H-th-10:box=1:boxcolor=black@0.5:boxborderw=5:x=10:y=H-th-10 :
  Invalid argument

• How to fix "Cannot find a valid font for the family Sans' while adding text on image using react-native-ffmpeg

  13 mai 2024, par coffee

  I am trying to add text on image using the code below
RNFFmpeg
.execute(`-y -i ${input} -vf "drawtext=text='Hello World':fontcolor=white:fontsize=75:x=0:y=0" ${output}`) ;

  


  I am not using any custom font but still get this error.

  


  Error :

  


  [Parsed_drawtext_0 @ 0x7f87a1ce40] Cannot find a valid font for the family Sans

  


  index.js:115 [AVFilterGraph @ 0x7f6765e760] Error initializing filter 'drawtext'
index.js:115 [AVFilterGraph @ 0x7f6765e760] with args 'text=Hello World:fontcolor=white:fontsize=75:x=0:y=0'
index.js:115 [AVFilterGraph @ 0x7f6765e760]

  


  index.js:115 Error reinitializing filters !

  


  index.js:115 Failed to inject frame into filter network : No such file or directory

  


  index.js:115 Error while processing the decoded data for stream #0:0

  


  Note :

  


  I also tried using a custom font but not able to do it.
When I use RNFFmpegConfig.setFontDirectory('../../assets/fonts') function and with it the following code to add text on image
RNFFmpeg
.execute(`-y -i ${input} -vf "drawtext=text='Hello World':fontfile='../../assets/fonts/MyFont.ttf':fontcolor=white:fontsize=75:x=0:y=0" ${output}`) ;

  


  It gives me the same error.

  


  How can I fix this issue.