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• potato quality audio coming from bot

  24 juillet 2020, par jas_123

  When I play audio through my bot it sounds really bad, I have a fast internet connection, so what could be causing this ? Im running my bot on a Raspberry Pi 3. Im using FFMpeg. Could the RPI be bottlenecking it somehow. Is it my code ?

  


  simplified version of my code :

  


  @client.command()
async def play(ctx):
    channel = client.get_channel(ctx.message.author.voice.channel.id)
    voice = await channel.connect()
    if not voice.is_playing():
        voice.play(await discord.FFMpegOpusAudio(source='/path/to/file'))
        while voice.is_playing():
            await asyncio.sleep(1)
    discord.AudioSource.cleanup(str(ctx.message.author.voice.channel.id))


  


• How to successively Crop THEN add multiple boxblur's to a video with ffmpeg ?

  7 août 2022, par Radespy

  I need to programmatically crop a video and then add ffmpeg boxblur to multiple regions of the cropped video.

  


  (Once the 'croppedAndBoxblurred' video is completed, I then need to read the image file in nodejs.)

  


  I have managed to do the following :

  


  (i'm accessing a local binary ffmpeg library, hence the string format)

  


  

  1. Crop the video using the following ffmpeg commands :

  


  


        [ "-i",
        `${path_to_video}`,
        "-filter:v",
        `crop=${width}:${height}:${x_pos}:${y_pos}`,
        "-preset",
        "fast",
        "-progress",
        `${temp_log_file_path}`,
        `${path.join(temp_directory, "cropped-video.mp4")}`]


  


  The listener (for the "progress=end" flag in the temp_log_file_path.txt) works fine.

  


  

  2. I can also create a SINGLE boxblur using the following commands :

  


  


        [ "-i",
        `${path_to_cropped_video}`,
         "-filter_complex",
        `[0:v]crop=200:200:100:100,boxblur=10[fg]; [0:v][fg]overlay=100:100[v]`,
        `-map`,
        `[v]`,
        `${temp_log_file_path}`,
        `${path.join(temp_directory, "boxblurred-video.mp4")}`]


  


  but i'm unable to combine the commands.

  


  I've tried lots and lots of different combinations using the ffmpeg cli.

  


  The following tests work individually :-

  


  ffmpeg -i /Users/fr/Desktop/media_folder/cropped.mp4 -filter_complex "[0:v]crop=200:200:100:100,boxblur=10[fg]; [0:v][fg]overlay=100:100[v]" -map "[v]" /Users/fr/Desktop/review-media-images/test4.mp4


ffmpeg -i /Users/fr/Desktop/media_folder/test1.mp4 -filter_complex "[0:v]crop=200:200:100:100,boxblur=10[fg]; [0:v][fg]overlay=100:100[v]" -map "[v]" /Users/fr/Desktop/review-media-images/test5.mp4

ffmpeg -i /Users/fr/Desktop/media_folder/test1.mp4 -filter_complex "[0:v]crop=200:200:100:100,boxblur=10[fg]; [0:v][fg]overlay=100:100[v]" -map "[v]" /Users/fr/Desktop/review-media-images/test6.mp4

ffmpeg -i /Users/fr/Desktop/media_folder/test1.mp4 -vf crop=600:600:2:2 /Users/fr/Desktop/review-media-images/test3.mp4       



  


  None of these work :

  


  ffmpeg -i /Users/fr/Desktop/media_folder/test1.mov  -filter_complex “crop=100:100:100:100,boxblur=10[fg];[0:v][fg]overlay=100:100[v]” -map “[v]” /Users/fr/Desktop/review-media-images/croppblur.mp4

ffmpeg -i /Users/fr/Desktop/media_folder/test1.mp4 -filter_complex “[0:v]crop=600:600:2:2[new]; [0:v][new]crop=200:200:100:100,boxblur=10[fg]; [0:v][fg]overlay=100:100[v]" -map "[v]" /Users/fr/Desktop/review-media-images/test2.mp4

ffmpeg -i /Users/fr/Desktop/media_folder/test1.mp4 -filter_complex “[0:v]crop=600:600:2:2[new]” -map “[0:v][new]crop=200:200:100:100,boxblur=10[fg]; [0:v][fg]overlay=100:100[v]" -map "[v]" /Users/fr/Desktop/review-media-images/test2.mp4

ffmpeg -i /Users/fr/Desktop/media_folder/test1.mp4 -vf crop=“600:600:2:2[tmp]” -filter_complex “[0:v][tmp]crop=200:200:100:100,boxblur=10[fg]; [0:v][fg]overlay=100:100[v]" -map "[v]" /Users/fr/Desktop/review-media-images/test2.mp4

ffmpeg -i /Users/fr/Desktop/media_folder/test1.mp4 -vf crop=“600:600:2:2” -filter_complex “[0:v]crop=200:200:100:100,boxblur=10[fg]; [0:v][fg]overlay=100:100[v]" -map "[v]" /Users/fr/Desktop/review-media-images/test2.mp4

ffmpeg -i /Users/fr/Desktop/media_folder/test1.mp4 -vf “crop=600:600:2:2” -filter_complex “[0:v]crop=200:200:100:100,boxblur=10[fg]; [0:v][fg]overlay=100:100[v]" -map "[v]" /Users/fr/Desktop/review-media-images/test2.mp4

ffmpeg -i /Users/fr/Desktop/media_folder/test1.mp4 -vf crop=600:600:2:2 -filter_complex “[0:v]crop=200:200:100:100,boxblur=10[fg]; [0:v][fg]overlay=100:100[v]" -map "[v]" /Users/fr/Desktop/review-media-images/test2.mp4

ffmpeg -i /Users/fr/Desktop/media_folder/test1.mp4 -filter:v “crop=600:600:2:2” /Users/fr/Desktop/review-media-images/titties.mp4
(No such filter crop)

ffmpeg -i /Users/fr/Desktop/media_folder/test1.mp4 -vf crop=600:600:2:2 -filter_complex "[0:v]crop=200:200:100:100,boxblur=10[fg]; [0:v][fg]overlay=100:100[v]" -map "[v]" /Users/fr/Desktop/review-media-images/test4.mp4
(Filtergraph 'crop=600:600:2:2' was specified through the -vf/-af/-filter option for output stream 0:0, which is fed from a complex filtergraph.
-vf/-af/-filter and -filter_complex cannot be used together for the same stream.)

ffmpeg -i /Users/fr/Desktop/media_folder/test1.mp4 -filter_complex "[0:v]crop=200:200:100:100,boxblur=10[fg]; [0:v][fg]overlay=100:100[tmp]; [0:v][tmp]crop=600:600:2:2[new]” -map “[new]” /Users/fr/Desktop/review-media-images/test4.mp4
([AVFilterGraph @ 0x7fdecb910d40] Too many inputs specified for the "crop" filter)


  


  Question :

  


  What is the correct syntax to achieve this ???

  


  Also, how would I add MULTIPLE boxblur regions to the cropped video i.e. to blur out different non-contiguous areas on the same video viewport ?

  


  Thanks.

  


• FFMPEG blackdetect output

  25 juin 2018, par MertG

  I am currently working on detecting black frames in my video. I tried lots of examples on my windows own command prompt with ffmpeg and got good result. Then I started using what I learned on java platform. When I used same string on my java code, there seems to be a problem, because I get exit code 1. I print my results on txt file so ofc there is no output too since its not working. My code is below ;

      public class MyCode{
  
  public static void main(String[] args){
  
  
  
  Runtime runtime = Runtime.getRuntime();
  
  Process process = runtime.exec("C:\\Users\mg\\Desktop\\test\\ffmpeg -i C:\\Users\mg\\Desktop\\test\\video.mp4 -vf blackdetect=d=0.1:pix_th=.1 -an -f null 2> C:\\Users\mg\\Desktop\\test\\output.txt C:\\Users\mg\\Desktop\\test");
  
  
  
  BufferedReader input = new BufferedReader(new InputStreamReader(process.getInputStream()));
  
  
  
  int exitCode = process.waitFor();
  
  System.out.println(exitCode);
  
  }

  btw this C:\\Users\mg\\Desktop\\test\\ffmpeg -i C:\\Users\mg\\Desktop\\test\\video.mp4 -vf blackdetect=d=0.1:pix_th=.1 -an -f null 2> C:\\Users\mg\\Desktop\\test\\output.txt C:\\Users\mg\\Desktop\\test
  part works on command promt but not on java.