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• Trying to upload a video to a server and then play it back to a video view (Xamarin android)

  31 juillet 2016, par stackOverNo

  I’m currently working on a xamarin.android project, and am attempting to upload a video to an aws server, and then also be able to play it back. The upload is working correctly as far as I can tell.

  I’m retrieving the file from the user’s phone, turning it into a byte array, and uploading that. This is the code to upload :

  if (isImageAttached || isVideoAttached)
  
              {
  
                  //upload the file 
  
                  byte[] fileInfo = System.IO.File.ReadAllBytes(filePath);
  
                  Task<media> task = client.SaveMediaAsync(fileInfo, nameOfFile);
  
                  mediaObj = await task;
  
  
  
                  //other code below is irrelevant to example
  
              }
  
  </media>

  and SaveMediaAsync is a function I wrote in a PCL :

  public async Task<media> SaveMediaAsync(byte[] fileInfo, string fName)
  
      {        
  
          Media a = new Media();
  
          var uri = new Uri(RestUrl);
  
  
  
          try
  
          {
  
  
  
              MultipartFormDataContent form = new MultipartFormDataContent();
  
              form.Add(new StreamContent(new MemoryStream(fileInfo)), "file", fName);  //add file
  
  
  
              var response = await client.PostAsync(uri, form);            //post the form   client is an httpclient object
  
              string info = await response.Content.ReadAsStringAsync();
  
  
  
      //save info to media object
  
              string[] parts = info.Split('\"');
  
              a.Name = parts[3];
  
              a.Path = parts[7];
  
              a.Size = Int32.Parse(parts[10]);
  
  
  
          }
  
          catch(Exception ex)
  
          {
  
      //handle exception
  
          }
  
  
  
          return a;
  
  
  
      }
  
  </media>

  After uploading the video like that, I’m able to view it in a browser using the public url. The quality is the same, and there is no issue with lag or load time. However when I try to play back the video using the same public url on my app on an android device, it takes an unbelievably long time to load the video. Even once it is loaded, it plays less than a second of it, and then seems to start loading the video again(the part of the progress bar that shows how much of the video has loaded jumps back to the current position and starts loading again).

   VideoView myVideo = FindViewById<videoview>(Resource.Id.TestVideo);
  
  
  
   myVideo.SetVideoURI(Android.Net.Uri.Parse(url));
  
  
  
   //add media controller
  
   MediaController cont = new MediaController(this);
  
   cont.SetAnchorView(myVideo);
  
   myVideo.SetMediaController(cont);
  
  
  
   //start video
  
   myVideo.Start();
  
  </videoview>

  Now I’m trying to play a 15 second video that is 5.9mb. When I try to play a 5 second video that’s 375kb it plays with no issue. This leads me to believe I need to make the video file smaller before playing it back, but I’m not sure how to do that. I’m trying to allow the user to upload their own videos, so I’ll have all different file formats and sizes.

  I’ve seen some people suggesting ffmpeg for a c# library to alter video files, but I’m not quite sure what it is I need to do to the video file. Can anyone fill in the gaps in my knowledge here ?

  Thanks for your time, it’s greatly appreciated !

• RoR ffmpeg installed by brew

  26 octobre 2012, par Thomas Kobber Panum

  I'm developing a Ruby on Rails application that needs ffmpeg, to do some processing of the files I have.

  However, when trying to use ffmpeg, I get this error

  Failed encoding. Errors: no output file created. Full output: dyld: Library not loaded: /usr/local/lib/libogg.0.dylib
  
  Referenced from: /usr/local/bin/ffmpeg
  
  Reason: Incompatible library version: ffmpeg requires version 9.0.0 or later, but libogg.0.dylib provides version 6.0.0

  It's a basically a CarrierWave project, which can be seen here : http://www.freezzo.com/2010/12/23/create-ffmpeg-processor-for-carrierwave-in-rails-3/

• Error : Package : perl-Git-1.8.2.1-1.el5.x86_64 (epel) Requires : perl(:MODULE_COMPAT_5.8.8)

  23 décembre 2014, par P C SAS3

  error in loading github lib tool

  i have tried to load the following dependencies to load ffmpeg from source when i try to run the following command i am getting errors as below

  yum install autoconf automake gcc gcc-c++ git libtool make nasm pkgconfig zlib-devel
  
  Loaded plugins: fastestmirror
  
  Loading mirror speeds from cached hostfile
  
   * base: mirrors.viethosting.vn
  
   * epel: ftp.cuhk.edu.hk
  
   * extras: mirrors.viethosting.vn
  
   * updates: mirrors.vinahost.vn
  
  base                                                     | 3.7 kB     00:00     
  
  epel                                                     | 3.7 kB     00:00     
  
  epel/primary_db                                          | 3.7 MB     00:18     
  
  extras                                                   | 3.4 kB     00:00     
  
  updates                                                  | 3.4 kB     00:00     
  
  updates/primary_db                                       | 1.5 MB     00:16     
  
  vz-base                                                  |  951 B     00:00     
  
  vz-updates                                               |  951 B     00:00     
  
  Setting up Install Process
  
  Package autoconf-2.63-5.1.el6.noarch already installed and latest version
  
  Package automake-1.11.1-4.el6.noarch already installed and latest version
  
  Package gcc-4.4.7-11.el6.x86_64 already installed and latest version
  
  Package gcc-c++-4.4.7-11.el6.x86_64 already installed and latest version
  
  Package 1:make-3.81-20.el6.x86_64 already installed and latest version
  
  Package 1:pkgconfig-0.23-9.1.el6.x86_64 already installed and latest version
  
  Package zlib-devel-1.2.3-29.el6.x86_64 already installed and latest version
  
  Resolving Dependencies
  
  --> Running transaction check
  
  ---> Package git.x86_64 0:1.8.2.1-1.el5 will be installed
  
  --> Processing Dependency: perl-Git = 1.8.2.1-1.el5 for package: git-1.8.2.1-1.el5.x86_64
  
  --> Processing Dependency: perl(Term::ReadKey) for package: git-1.8.2.1-1.el5.x86_64
  
  --> Processing Dependency: perl(Git) for package: git-1.8.2.1-1.el5.x86_64
  
  --> Processing Dependency: perl(Error) for package: git-1.8.2.1-1.el5.x86_64
  
  --> Processing Dependency: libssl.so.6()(64bit) for package: git-1.8.2.1-1.el5.x86_64
  
  --> Processing Dependency: libexpat.so.0()(64bit) for package: git-1.8.2.1-1.el5.x86_64
  
  --> Processing Dependency: libcurl.so.3()(64bit) for package: git-1.8.2.1-1.el5.x86_64
  
  --> Processing Dependency: libcrypto.so.6()(64bit) for package: git-1.8.2.1-1.el5.x86_64
  
  ---> Package libtool.x86_64 0:2.2.6-15.5.el6 will be installed
  
  ---> Package nasm.x86_64 0:2.07-7.el6 will be installed
  
  --> Running transaction check
  
  ---> Package compat-expat1.x86_64 0:1.95.8-8.el6 will be installed
  
  ---> Package git.x86_64 0:1.8.2.1-1.el5 will be installed
  
  --> Processing Dependency: libcurl.so.3()(64bit) for package: git-1.8.2.1-1.el5.x86_64
  
  ---> Package openssl098e.x86_64 0:0.9.8e-18.el6_5.2 will be installed
  
  ---> Package perl-Error.noarch 1:0.17015-4.el6 will be installed
  
  ---> Package perl-Git.x86_64 0:1.8.2.1-1.el5 will be installed
  
  --> Processing Dependency: perl(:MODULE_COMPAT_5.8.8) for package: perl-Git-1.8.2.1-1.el5.x86_64
  
  ---> Package perl-TermReadKey.x86_64 0:2.30-13.el6 will be installed
  
  --> Finished Dependency Resolution
  
  Error: Package: perl-Git-1.8.2.1-1.el5.x86_64 (epel)
  
             Requires: perl(:MODULE_COMPAT_5.8.8)
  
  Error: Package: git-1.8.2.1-1.el5.x86_64 (epel)
  
             Requires: libcurl.so.3()(64bit)
  
   You could try using --skip-broken to work around the problem
  
   You could try running: rpm -Va --nofiles --nodigest

  now i went into some solution on net which asked to check with disablerepo to rpmforge it also throw the following error

  # yum --disablerepo=rpmforge install git
  
  Loaded plugins: fastestmirror
  
  
  
  
  
  Error getting repository data for rpmforge, repository not found

  kindly help so that i can install all the dependencies so that i may not face any problem while configuring ffmpge