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• upload fluent-ffmpeg converted videos directly to s3

  6 mai 2021, par a_wolf_with_no_master

  Is there any way to upload fluent-ffmpeg converted videos directly to s3 without storing them on local ?

  


  ffmpeg('https://bucket2021.s3.amazonaws.com/aws.avi' thre)
           .format('mp4')
            .on('start', function(commandLine) {
                console.log('Spawned Ffmpeg with command: ' + commandLine);
              })
            .on('progress', function(progress) {
                console.log('Processing: ' + progress.percent + '% done');
              })
            .on('end', function(data,err){
                console.log(data)
                console.log(err)
            })
            .on('error',(err)=>{
                console.log(err)
            })
            .save('/home/john/firstapp/new2') 


  


• FFmpeg producing a flickering video from images

  21 juin 2018, par jjohnn91

  So I’m trying to make a video of a fractal rotating through some values, much like seen here.

  I generate the frames (1000 of them) using a different program written in Java that works just fine, so for the purposes of this scenario assume that all the images are in the target folder and also in numerical order as they need to appear in the video.

  I found the following code on the web to stitch images into a video, and I haven’t the faintest idea how it works, and when I run it, all of the images are indeed stitched into a video and placed on the desktop, but the video appears to have one specific frame just jump in at random positions. I’m not totally sure which one, but its one of the earlier frames, somewhere between 1 and 200 of the 1000.

  I’ve also tested making two half videos, one using the first 500 frames, and the other using the second 500 frames. The first video (1 -> 500) has flickering, and the second video (501 -> 1000) appears not to have flickering to my observations.

  I am seeking help in fixing the flickering behavior, and I will upload the video file to google drive later if asked. The Images are all 1920x1080, and in proper numerical order.

  Thanks in advance !

  import static org.bytedeco.javacpp.opencv_imgcodecs.*;
  
  import java.io.File; 
  
  import org.bytedeco.javacpp.avcodec;
  
  import org.bytedeco.javacv.FFmpegFrameRecorder;
  
  import org.bytedeco.javacv.OpenCVFrameConverter;
  
  public class ImageToMovie{
  
      public static void main(String []args){
  
          String imgPath="C:\\Users\\John\\Images";
  
          String vidPath="C:\\Users\\John\\Desktop\\video.mp4";
  
          String[] links=new String[new File(imgPath).listFiles().length];
  
          File f=new File(imgPath);
  
          File[] f2=f.listFiles();
  
          for(int i=0;icode>

• Bash Script to convert all flv file in a directory to mp3

  11 août 2014, par UnbrandedTech

  This is my code so far.

  #!/bin/bash
  
  #James Kenaley
  
  #Flv to Mp3 directory converter
  
  
  
  find /home/downloads -iname "*.flv" | \
  
  while read I;
  
  do
  
      `ffmpeg -i ${I} -acodec copy  ${I/%.flv/.mp3}`
  
      echo "$I has been converted"
  
  done

  but its picking up white spaces in the names of the flv files and throws a error saying its not in the directory. how do make it use the whole file name and not the just the first word before the space ?