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• How can we play 2 videos side by side as per the resolution we provide to the output video and adjust the two input videos position

  1er décembre 2023, par Bhavya Nayak

  -> For playing two video side by side as per the output video resolution I provide :-

  


  

  1. I want output video of resolution 1280x720 so for this.

  


  


  a. First I have trimmed the two video using below command :-

  


  ffmpeg -i input_viedo.mp4 -ss 00:00:10 -t 00:00:20 -vf      "scale=1920:1080,pad=1920:1080:0:0:yellow" -c:v libx264 -c:a aac -strict -2 output_video_trimmed.mp4



  


  b. Now to I want to play both the trimmed video into one output video file as per the position I provide , so for this I have tried below command which is not giving the correct output :

  


  ffmpeg -i output_video_trimmed_1.mp4 -i output_trimmed_2.mp4 -filter_complex "[0:v]scale=634:360[pad1];[1:v]scale=640:360[pad2];[pad1]pad=1280:360:0:100[tl];[pad2]pad=1280:360:634.752:130.392[br];[tl][br]vstack,scale=1280:720[output]" -map "[output]" -c:v libx264 -preset ultrafast -crf 18 -c:a aac -b:a 1280x720 output_final_video.mp4


  


  

  • In above command I have provide the specific width,height,top,left of the input video I want ,

  


  


  But it is not giving me correct output.

  


  —> Output I am getting by running this command is attached below :-

  


  Output video Image I am getting by running above command

  


  Actual output I want

  


  —> The issue in above command is while adding top it is not working properly , like top is not affecting the video so I want the solution for that.

  


• Videos which is only played by particular app, need help to save it

  19 septembre 2015, par Kumar

  There’s a app(i can’t disclose the app name) which plays video stored in memory card and videos have no extension, by viewing the file sizes im assuming that they are the videos + I also check changing the extension with mp4 flv 3gp etc but no success. I then decompiled the app and saw that app is using ffmpeg-jni to play the videos. Anybody can help me in this ? and yeah all videos have IGN in their meta tag.

  Thanks

• How to run one script after another in Apple Script

  19 juillet 2015, par mskx4

  I’m trying with Apple Script to run three different scripts that would alow me to :

  1. Convert a purchased m4a file into an "anonymized" m4a file and extract its artwork (with ffmpeg)
  2. Attach the artwork to the file previously converted, since the converted file won’t maintain its artwork (with AtomicParsley)
  3. Remove the artwork from his path

  I don’t have any kind of programming knowledge, I’ve collected different script from the web and tried to make an app that could do these 3 simple task :

  on open argv
  
     set paths to ""
  
     repeat with f in argv
  
         set paths to paths & quoted form of POSIX path of f & " "
  
     end repeat
  
     tell application "Terminal"
  
          do script "for f in " & paths & "; do ffmpeg -i \"$f\" -acodec copy -y \"$f\" output.jpg; done"
  
          activate
  
          do script "for f in " & paths & "; do AtomicParsley \"$f\" --artwork output.jpg; done"
  
          activate
  
          do script "rm output. jpg"
  
          activate
  
     end tell
  
   end open

  The problem is that, when I drop a file on the app, it opens three terminal windows at once and it runs the three tasks in the same time, with the obvious result that the conversion fails : the first task overwrites the input file, and the second script should use the output of the first one as its input file. So I need the three scripts to be executed successively, one after another.