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• Fast Video Streaming and Upload Android

  6 avril 2016, par vminind

  Fast Streaming & Uploading Videos On Mobile Apps with AWS S3

  Im developing a app witch has Android, iOS Clients were users can upload videos and photos and view as news feed. I store my video file on Amazone s3. Video length is limited to 30sec.

  When user is uploading 30 sec video from their gallery there are some high quality videos witch is even exceed 100MB so those video files take ages to upload. So i tried to convert them before upload using ffmpeg-android library but it also take almost same amount of time to convert the file so it seems this solution also point less. (convert in the scene reducing the video resolution and frame rate)

  Im using ExoPlayer to play videos

  Note : Videos uploading from iOS are not that huge files.

  I want videos to upload fast and stream fast. Its big help if anyone can share their thoughts on this.

• How to use FFMPEG Binaries within an Android App built with Android Studio for Windows

  17 février 2016, par Valtinho

  I’ve read hundreds of pages on how to use ffmpeg in Android Studio all over the internet and none of them managed to give actual working solutions. I need to be able to trim a video selected from the gallery down to only the first 5 seconds. Ffmpeg is extremely user-unfriendly and I can’t even get it to compile successfully.

  The closest I got to compiling ffmpeg was running the app from uday-rayala called video-trimmer on github : https://github.com/uday-rayala/video-trimmer

  I downloaded the code, imported it into Eclipse and it runs and cuts videos once (it always crashes if you try a second time...). Anyway, I tried to replicate uday’s video-trimmer setup in my Android Studio app by moving the ffmpeg source files into a jni folder, and the armeabi folder inside a jniLibs folder, but the entire thing falls apart and doesn’t compile.

  Has anyone implemented ffmpeg source code within their apps ??? If so, could you please provide some working examples ? The internet is in desperate need of complete working examples for the extremely common task of video editing.

• Can't obtain thumbnail with ffmpeg codeigniter

  2 avril 2015, par DMBorges

  I have used the following tutorial ( https://www.youtube.com/watch?v=qT4hN5o57hI) to try to obtain a thumbnail from a uploaded video using codeigniter as a framework. As I am new to all this I don’t understand if at the end of supposedly uploading my video the code failed to create a thumbnail, if my created thumbnail is somewhere lost in my computer of by some settings reasons ffmpeg is not working.

  Where does my $imageFile goes to ?

  Here is my code.

  MY VIEW

  <div>
  
  
  
              &lt;?php echo form_open_multipart('gallery/save/'); ?>
  
                  <table class="table">
  
                      <tr>
  
                          <td>Video</td>
  
                          <td>&lt;?php echo form_upload('pic'); ?></td>
  
                      </tr>
  
                      <tr>
  
                          <td>Descrição</td>
  
                          <td>&lt;?php echo form_input('description'); ?></td>
  
                      </tr>
  
                      <tr>
  
                          <td></td>
  
                          <td>&lt;?php echo form_submit('upload', 'Guardar', 'class="btn btn-primary"'); ?></td>
  
                      </tr>       
  
                  </table>
  
  
  
      </div>

  MY CONTROLLER

  <?php
  
  class Gallery extends CI_Controller{
  
      public function index(){
  
          //Load View
  
          $data['main_content'] = 'gallery';
  
          $this->load->view('layouts/main', $data);
  
      }
  
  
  
      public function save()
  
      {
  
          $url = $this->do_upload();
  
          $ffmpeg = "C:\\xampp\\htdocs\\ffmpeg\\bin";
  
          $videoFile = $_FILES["pic"]["tmp_name"];
  
          $imageFile = "1.jpg";
  
          $size = "120x90";
  
          $getFromSecond = 5;
  
          $cmd = "$ffmpeg -i $videoFile -an -ss $getFromSecond -s $size $imageFile "; 
  
          echo $cmd;
  
          if(!shell_exec($cmd)){
  
              echo 'thumbnail created!'; 
  
          }
  
          else {
  
              echo 'ERROR!';
  
          }
  
  
  
          /* $config = array(
  
                          'source_image' => $url,
  
                          'new_image' =>"./assets/images/gallery/thumbs/",
  
                          'maintain_ration' => true,
  
                          'width' => 150,
  
                          'height'=> 100
  
                          );
  
                  $this -> load -> library('image_lib', $config);
  
                  $this ->image_lib-> resize();
  
                  $description = $_POST["description"];
  
                  $user = $this->session->userdata('user_id');
  
                  $this->Gallery_model->save($description, $url, $user);
  
                  redirect('gallery'); */
  
      }
  
      private function do_upload()
  
      {
  
          $type = explode('.', $_FILES["pic"]["name"]);
  
          $type = strtolower($type[count($type)-1]);
  
          $id = uniqid(rand());
  
          $url = "./assets/images/gallery/".$id.'.'.$type;
  
          if(in_array($type, array("wmv", "mp4", "avi", "flv")))
  
              if(is_uploaded_file($_FILES["pic"]["tmp_name"]))
  
                  if(move_uploaded_file($_FILES["pic"]["tmp_name"],$url))
  
                      return $url;
  
          return "";
  
      }
  
  }