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• Amazon S3 : how to combine all images into a video ?

  17 mars 2015, par scientiffic

  I’m in my Rails app, I enable users to upload images, which get processed using ffmpeg to create a video slideshow.

  I have this working locally, but am wondering how to do this when deploying the app using Heroku. In particular, I know Heroku has limited storage and has a read-only filesystem, so using Carrierwave without S3 or an external storage option doesn’t seem like an option.

  But how would I run a task like the following using S3, where I combine all images into a video ?

  The ffmpeg command is

  ffmpeg -r 5 -i https://s3.amazonaws.com/[]/uploads/image/image_file/26/img%03d.jpg output.mp4 -y

  And the AWS "folder" contains the following :
  https://s3.amazonaws.com/[]/uploads/image/image_file/26/img001.jpg
  https://s3.amazonaws.com/[]/uploads/image/image_file/26/img002.jpg
  https://s3.amazonaws.com/[]/uploads/image/image_file/26/img003.jpg

  When I try to do the following, I get an error with ffmpeg not knowing what to do with :

  https://s3.amazonaws.com/[]/uploads/image/image_file/26/img%03d.jpg

  Note, this whole video compilation process works fine for me locally, so I know in theory it should work.

• fluent-ffmpeg sometimes crashes entire amazon ec2 instance

  24 octobre 2020, par Mick Marsden

  I have a nodejs application where I'm using fluent-ffmpeg to convert captured video files via the html <input file="file" /> tag to mp4 format. I'm also using ffmpeg-static to provide static binaries for fluent-ffmpeg's file path. But in order for the conversion to happen, I upload the captured video file via multer, and when that completes, multer passes the video url to fluent-ffmpeg. The code looks like this :

  


  app.post("/upload-and-convert", async function(req, res) {

   var filepath;
   var path;

    try {

        const upload = util.promisify(uploadVideo());

        await upload(req, res);

        console.log(req.file);
        console.log("Success");
        filepath = req.file.filename;
        console.log(filepath);
        path = './public/uploads/' + filepath;
        console.log(path);

    } catch (e) {
       let response_json = {
                success: false,
        };
        res.setHeader("content-type", "application/json");
        res.send(response_json);
    }

    if(path != undefined)
    {

        console.log("Path not undefined, going to start FFMPEG");
        ffmpeg(path)
        .format('mp4')
        .size('720x720').autopad()
        .on('end', function() {
            console.log('file has been converted successfully');
        })
        .on('error', function(err) {
            console.log('an error happened: ' + err.message);
            let response_json = {
                success: false,
            };
            res.setHeader("content-type", "application/json");
            res.send(response_json);
        })
        .save('./public/uploads/video.mp4')
        .on('end', function() {
            console.log('file has been saved successfully');
            let response_json = {
                success: true,
                fileURL: 'https://websiteurl/uploads/video.mp4'
            };
            res.setHeader("content-type", "application/json");
            res.send(response_json);
        })

    } else
    {
        let response_json = {
            success: false,
        };
        res.setHeader("content-type", "application/json");
        res.send(response_json);
    }
});


  


  Most times, the code runs fine and returns the fileURL as intended. Sometimes however, it completely crashes the amazon ec2 instance, and requires the instance be rebooted before it works again. I've checked the logs, and the server-error logs output no issues. The server-out logs when it crashes outputs the final console log before ffmpeg starts :

  


          console.log("Path not undefined, going to start FFMPEG");


  


  The moment it reaches the ffmpeg(path), it goes down. It doesn't log any error, even though I have included error handling on the operation.

  


  This has stumped me for days. I cannot figure out the commonality to explain why sometimes it crashes, and sometimes it does not. Note that this even happened before I started using the ffmpeg-static package. My node version is 12.19.0, and ffmpeg-static currently installs ffmpeg at version 4.3.1 if I recall correctly.

  


  If anyone could help that would be great.

  


• Install gstreamer on EC2 Amazon Linux AMI ?

  6 décembre 2015, par vy32

  I’m trying to install QT5.5 on Amazon EC2 Linux, which apparently requires that I install some kind of multimedia support. It looks like that comes from gstreamer.

  yum search gstreamer turns up :

  [ec2-user@ip-172-30-1-58 ~]$ yum search gstreamer
  
  Loaded plugins: priorities, update-motd, upgrade-helper
  
  23 packages excluded due to repository priority protections
  
  ============================================== N/S matched: gstreamer ==============================================
  
  gstreamer-ffmpeg.x86_64 : GStreamer FFmpeg-based plug-ins
  
  gstreamer-ffmpeg-debuginfo.x86_64 : Debug information for package gstreamer-ffmpeg
  
  gstreamer-plugins-bad.x86_64 : GStreamer streaming media framework "bad" plug-ins
  
  gstreamer-plugins-bad-debuginfo.x86_64 : Debug information for package gstreamer-plugins-bad
  
  gstreamer-plugins-bad-nonfree.x86_64 : Non Free GStreamer streaming media framework "bad" plug-ins
  
  gstreamer-plugins-bad-nonfree-debuginfo.x86_64 : Debug information for package gstreamer-plugins-bad-nonfree
  
  gstreamer-plugins-ugly.x86_64 : GStreamer streaming media framework "ugly" plug-ins
  
  gstreamer-plugins-ugly-debuginfo.x86_64 : Debug information for package gstreamer-plugins-ugly
  
  gstreamer-plugins-ugly-devel-docs.noarch : Development documentation for the GStreamer "ugly" plug-ins
  
  gstreamer1-libav.x86_64 : GStreamer 1.0 libav-based plug-ins
  
  gstreamer1-libav-debuginfo.x86_64 : Debug information for package gstreamer1-libav
  
  gstreamer1-plugins-bad-freeworld.x86_64 : GStreamer 1.0 streaming media framework "bad" plug-ins
  
  gstreamer1-plugins-bad-freeworld-debuginfo.x86_64 : Debug information for package gstreamer1-plugins-bad-freeworld
  
  gstreamer1-plugins-ugly.x86_64 : GStreamer 1.0 streaming media framework "ugly" plug-ins
  
  gstreamer1-plugins-ugly-debuginfo.x86_64 : Debug information for package gstreamer1-plugins-ugly
  
  gstreamer1-plugins-ugly-devel-docs.noarch : Development documentation for the GStreamer "ugly" plug-ins
  
  gstreamer1-vaapi.x86_64 : GStreamer plugins to use VA API video acceleration
  
  gstreamer1-vaapi-debuginfo.x86_64 : Debug information for package gstreamer1-vaapi
  
  gstreamer1-vaapi-devel.x86_64 : Development files for gstreamer1-vaapi
  
  qt-gstreamer.x86_64 : C++ bindings for GStreamer with a Qt-style API
  
  qt-gstreamer-debuginfo.x86_64 : Debug information for package qt-gstreamer
  
  qt-gstreamer-devel.x86_64 : Header files and development documentation for qt-gstreamer
  
  
  
    Name and summary matches only, use "search all" for everything.
  
  [ec2-user@ip-172-30-1-58 ~]$ %

  However, when I try to install one of these, I get this error :

  $ sudo yum install -y gstreamer-ffmpeg
  
  Loaded plugins: priorities, update-motd, upgrade-helper
  
  23 packages excluded due to repository priority protections
  
  Resolving Dependencies
  
  --> Running transaction check
  
  ---> Package gstreamer-ffmpeg.x86_64 0:0.10.13-15.el7.nux will be installed
  
  --> Processing Dependency: liborc-0.4.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstvideo-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstreamer-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstpbutils-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstbase-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstaudio-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Finished Dependency Resolution
  
  Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
  
             Requires: liborc-0.4.so.0()(64bit)
  
  Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
  
             Requires: libgstreamer-0.10.so.0()(64bit)
  
  Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
  
             Requires: libgstbase-0.10.so.0()(64bit)
  
  Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
  
             Requires: libgstaudio-0.10.so.0()(64bit)
  
  Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
  
             Requires: libgstpbutils-0.10.so.0()(64bit)
  
  Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
  
             Requires: libgstvideo-0.10.so.0()(64bit)
  
   You could try using --skip-broken to work around the problem
  
   You could try running: rpm -Va --nofiles --nodigest
  
  [ec2-user@ip-172-30-1-58 ~]$ 

  Supplying the suggested --skip-broken doesn’t help :

  [ec2-user@ip-172-30-1-58 ~]$ sudo yum install -y gstreamer-ffmpeg --skip-broken
  
  Loaded plugins: priorities, update-motd, upgrade-helper
  
  23 packages excluded due to repository priority protections
  
  Resolving Dependencies
  
  --> Running transaction check
  
  ---> Package gstreamer-ffmpeg.x86_64 0:0.10.13-15.el7.nux will be installed
  
  --> Processing Dependency: liborc-0.4.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstvideo-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstreamer-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstpbutils-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstbase-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  --> Processing Dependency: libgstaudio-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
  
  
  
  Packages skipped because of dependency problems:
  
      gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 from nux-dextop
  
  [ec2-user@ip-172-30-1-58 ~]$ 

  So how do I install gstreamer-ffmpeg ? Why aren’t the dependencies automatically being followed ?