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• Pass options containing spaces to ffmpeg using fluent-ffmpeg

  10 janvier 2019, par dansumption

  I am writing a Node script which copies and re-tags some of my MP4 files using fluent-ffmpeg

  It doesn’t work with any metadata that contains spaces. The code that does the copying/tagging looks something like this :

  const ffmpeg = require('fluent-ffmpeg');
  
  
  
  const inputFilename = 'path/to/original.m4a';
  
  const outputFilename = 'path/to/new.m4a';
  
  
  
  const options = [
  
      '-metadata', 'artist=Someone',
  
      '-metadata', 'album=Some title',
  
      // ...etc
  
  ];
  
  
  
  ffmpeg(inputFilename)
  
    .outputOptions(options)
  
    .saveToFile(outputFilename);

  This results in an error :

  events.js:183
  
        throw er; // Unhandled 'error' event
  
  
  
  An error occurred: ffmpeg exited with code 1: title: Invalid argument

  I have tried putting Some title in single quotes, double quotes and no quotes. I have tried escaping the spaces in it. I have tried passing the options array as single options rather than tuples, for example : '-metadata album="Some title"' - but whatever I try, it still throws an error when there are spaces.

  (It may be relevant to note that this is on Windows)

  Can anyone suggest a way of getting it to work ?

• outOfMemoryError from javacv

  14 février 2018, par Maharjun M

  We are using javacv library for creating thumbnails out of videos. We are able to create thumbnails. But when we upload more videos (20 to 30 of 10MB to 40MB) the application is throwing outOfMemoryError.

  We are using 1.3.1 version of javacv.
  Here is the pom.xml file.

      <dependency>
  
          <groupid>org.bytedeco</groupid>
  
          <artifactid>javacv</artifactid>
  
          <version>1.3.1</version>
  
      </dependency>

  Here is the code

  public BufferedImage generateThumbnail(File outputVideoFile) throws IOException {
  
        BufferedImage bufferedImage = null;
  
      try {
  
          FFmpegFrameGrabber frameGrabber = new FFmpegFrameGrabber(outputVideoFile);
  
          frameGrabber.start();
  
          Frame grabKeyFrame = frameGrabber.grabKeyFrame();
  
          Java2DFrameConverter java2DFrameConverter = new Java2DFrameConverter();
  
          bufferedImage = java2DFrameConverter.convert(grabKeyFrame);
  
          frameGrabber.stop();
  
      } catch (Exception e) {
  
          throw new RuntimeException(e);
  
      }
  
      return bufferedImage;
  
  }

  Here is the error

   java.lang.OutOfMemoryError: Physical memory usage is too high: physicalBytes = 3G > maxPhysicalBytes = 3G
  
  org.bytedeco.javacpp.Pointer.deallocator(Pointer.java:562)
  
  org.bytedeco.javacpp.Pointer.init(Pointer.java:121)
  
  org.bytedeco.javacpp.avcodec$AVPacket.allocate(Native Method)
  
  org.bytedeco.javacpp.avcodec$AVPacket.<init>(avcodec.java:1696)
  
  org.bytedeco.javacv.FFmpegFrameGrabber.startUnsafe(FFmpegFrameGrabber.java:471)
  
  org.bytedeco.javacv.FFmpegFrameGrabber.start(FFmpegFrameGrabber.java:462)
  
  org.bahmni.module.bahmnimsf.extension.PatientDocumentThumbnailGenerator.generateThumbnail(PatientDocumentThumbnailGenerator.java:40)
  
  org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:961)
  
  </init>

  I tried to upgrade the version to 1.4 though it’s not working.
  Somebody told me to use System.gc() that also not working.

  Can someone suggest the solution ? thanks in advance.

• ffmpeg fluent live streaming to youtube not working

  18 octobre 2020, par Ricky

  I am learning how to using ffmpeg fluent and I am having trouble getting it to stream live to Youtube

  



  here is the command I have tried :

  



  let streamYT = (YTrtmpKey) => {
  var proc3 = new ffmpeg({ source: inputURL, timeout: 0 })
    .addOption('-vcodec', 'libx264')
    .addOption('-acodec', 'aac')
    .addOption('-crf', 26)
    .addOption('-aspect', '640:360')
    .withSize('640x360')
    .on('start', function(commandLine) {
    console.log('Query : ' + commandLine);
    })
    .on('error', function(err) {
    console.log('Error: ' + err.message);
    })
    .output('rtmp://a.rtmp.youtube.com/live2/' + YTrtmpKey, function(stdout, stderr) {
    console.log('Convert complete' +stdout);
  });
  }


  



  this doesn't throw any errors but also doesn't do anything