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• Parsed_concat_1 @ 02ad98e0 Failed to configure output pad on Parsed_concat_1

  3 décembre 2015, par user650922

  I am using NReco.VideoConverter(FFMPegConverter) to ConcatMedia. However, I am getting error as Parsed_concat_1 @ 02ad98e0 Failed to configure output pad on Parsed_concat_1.

  Here is the code snippet of my code :

  try
  
          {
  
              var ffMpeg = new FFMpegConverter();
  
              var set = new ConcatSettings
  
              {
  
                  ConcatAudioStream = false
  
              };
  
              set.SetVideoFrameSize(1080, 720);
  
              set.MaxDuration = 500;
  
              ffMpeg.ConcatMedia(videos, output + ".mp4", Format.mp4, set);
  
              return output + ".mp4";
  
          }
  
          catch (Exception ex)
  
          {
  
              var text = new List<string>();
  
              text.AddRange(videos);
  
              text.Add(ex.Message);
  
              throw new Exception(string.Join(", ", text), ex);
  
          }
  
  </string>

  VideoFrameSize of all the videos is(1080, 720) and FrameRate is 25.

  Could some one please help me to resolve the issue.

• Why does it take forever just to add audio to an mp4 ?

  3 août 2020, par Akami_Channel

  I am currently using Kdenlive, but have also used ffmpeg when I have the simple task of adding audio to a video that does not yet have audio. Since it is just a matter of putting the video file together with the audio, it seems like it ought to be simple. Is there something about encoding mp4's that means it must take a lot of processing to complete ?

  


  I have good hardware (i7 6700k and gtx 1080), but kdenlive currently estimates 2.5 hours to complete adding audio to a 10 minute video.

  


• Ffmpeg - Scale down video with overlay

  30 juillet 2020, par pillarman38

  I am trying to transcode a video with a subtitle overlay but I need to scale it down from 4k to 1080. How would I go about doing that with a complex filter ?

  


  ffmpeg -ss 00:00:00 -i myVideo.mkv -filter_complex[0:v][0:s:0]overlay[v] -map [v] -map 0:a:0 -y -acodec aac -ac 6 -pix_fmt yuv420p10le -vcodec libx265 -x265-params colorprim=bt2020:transfer=smpte2084:colormatrix=bt2020nc -start_number 0 -hls_time 5 -force_key_frames expr:gte(t,n_forced*5) -hls_list_size 0 -f hls `output.ts`