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• Creating video from single long audio and single image then created video not playing

  25 février 2021, par Mukul Kashyap

  I am creating a video from single audio and single image and it is fine when the audio length less than 10 seconds but when the audio length exceeds 10 seconds then video not playing. I am using FFmpeg to create video using shell_exec().
The video is fine when I directly runs the FFmpeg command on the terminal but the only issue comes with the shell_exec command.

  


  This command I am using -

  


  ffmpeg -loop 1 -f image2 -i $this->img_url -i $this->audio_url -vf scale=1920*1080 -pix_fmt yuv420p -vcodec libx264 -shortest ".$video_local_dir.$video_name ;

  


  Please help me to fix this issue

  


  Thanks.

  


• 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>

• avcodec/ac3enc : use long long after switch to 64 bit bitrate

  19 septembre 2015, par Ganesh Ajjanagadde

  avcodec/ac3enc : use long long after switch to 64 bit bitrate
  Commit 7404f3bdb switched bitrate to 64 bits.
  
  This triggers -Wabsolute-value on clang, e.g
  
  http://fate.ffmpeg.org/log.cgi?time=20150917122742&log=compile&slot=x86_64-darwin-clang-3.7-O3.
  
  Therefore, usage of abs is changed to llabs, which is available on all of the platforms.
  
  Unfortunately, LLONG_MAX is not always available, so INT64_MAX is used instead.
  Signed-off-by : Ganesh Ajjanagadde <gajjanagadde@gmail.com>
  
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavcodec/ac3enc.c