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• How to initiate a class object out of a Dictionary with Lambda/LINQ, parsed by Newtonsoft.Json ?

  18 mars 2019, par Hassanslaw

  since yesterday I tried to implement ffmpeg via Xabe-Wrapper in my C#-Project.
  I used FFMpeg => FFProbe to get Format and Stream data as a json-string from some movies. This is the json I got for the Streams.

  "{
  
    "streams": [
  
      {"codec_name": "mpeg4", "codec_type": "video"},
  
      {"codec_name": "mp3"  , "codec_type": "audio"}
  
    ]
  
  }"

  Follow thing the Newtonsoft Wiki, I deserialized it as a DataSet. I started playing around and found a way to do this in a "oneliner".

  Streams = (JsonConvert.DeserializeObject<dataset>(StreamProbeJSON,
    JSerializerSettings)).Tables["streams"].AsEnumerable().Select(value => new
    FormatAVInfo.SInfo(value.Field<string>("codec_type"), value.Field<string>
    ("codec_name")));</string></string></dataset>

  For Format, I get this Json

  {
  
      "format": {
  
          "format_name": "avi",
  
          "probe_score": 100
  
      }
  
  }

  Follow thing the Newtonsoft Wiki, I deserialized this one as a Dictionary, but I am not ably to do this in a oneliner again. Its not a big problem, but I would like to now how I can achieve this ?

  I tried this

  Format = (JsonConvert.DeserializeObject>>(FormatProbeJSON, JSerializerSettings)) 
  
      ["format"].Select(value => new FormatAVInfo.FInfo(value["format_name"], 
  
      value["probe_score"]));

  But, sure, Iam getting a KeyValuePair and not able to use a indexer for this. I also tried with JObject, with the same result. Sure, I could just make another Field

  Dictionary Temp = 
  
      (JsonConvert.DeserializeObject>>(FormatProbeJSON, JSerializerSettings)) 
  
      ["format"]

  And instanciate afterwards, but Iam curious if there is a way to do this.

  Thank you

• Class 'Pbmedia\LaravelFFMpeg\FFMpegServiceProvider\FFMpeg' not found

  26 mars 2019, par farooq

  Encountered error

  Class ’Pbmedia\LaravelFFMpeg\FFMpegServiceProvider\FFMpeg’ not found

  I’m building a web application to upload a video and store it in cloud. I want to get the duration of the uploaded video. I tried to install laravel/FFMpeg package. After doing all the steps, I’m getting the above error.

  Code

  My controller code :

  <?php 
  
  namespace App\Http\Controllers;
  
  use Auth;
  
  use Illuminate\Http\Request;
  
  use DB;
  
  use App\Http\Requests;
  
  use App\Http\Controllers\Controller;
  
  use Illuminate\Support\Facades\Storage;
  
  use App\Providers\DropboxServiceProvider;
  
  use Dropbox\Client;
  
  use Dropbox\WriteMode;
  
  use Pbmedia\LaravelFFMpeg\FFMpegServiceProvider as FFMpeg; 
  
  //use Pbmedia\LaravelFFMpeg\FFMpegFacade as FFMpeg;
  
  //use FFMpeg;
  
  
  
  class FileController extends Controller 
  
  {
  
     public function FileUpload(Request $request)
  
     {
  
      $file = $request->file('file');
  
      $note = $request->input('note');
  
      //$request->file('file')->store('assets');
  
      if($file)
  
      { 
  
  
  
           //Storage::disk('local')->put($file, $file);
  
          //$file = $request->input('file')->store('1.png');
  
           $file1 = Storage::disk('local')->put('' ,$request->file) ;
  
           $filename = $file->getClientOriginalName();
  
  
  
           Storage::move(''.$file1, $filename); // keep the same folder to just rename 
  
  
  
  
  
  
  
           $file = FFMPEG\FFMpeg::open($filename);
  
           $durationInSeconds = $file->getDurationInSeconds();
  
           return view('users/order-status')->with('file',$durationInSeconds);
  
      }
  
      else
  
      {
  
          $file ="not found";
  
      }
  
      return view('users/order-status')->with('file',$file);
  
     }
  
  
  
     public function dropboxFileUpload(Request $request)
  
      {
  
  
  
  
  
          $file = $request->input('file');
  
          //Storage::disk('dropbox')->put('file.txt', 'Hello laravel ');
  
          //$path = $request->input('file')->store('audio');
  
          Storage::disk('local')->put($file, 'Contents');
  
          echo asset('storage/"$file"');
  
          //$file = "/storage/app/".$file. "";
  
  
  
          //dd($path);
  
          //$file = dd($path);
  
      return view('users/order-status')->with('file',$file);
  
  
  
      }
  
  }
  
  ?>

• In Android run asyn task inside Worker class of WorkManager

  29 mars 2019, par Usman Rana

  I’ve a Worker in which i first want to apply FFMPEG command before uploading it to server. As Worker is already running in background so to keep the result on hold until file uploads I’ve used RxJava .blockingGet() method. But I’m unable to understand that how to execute FFmpeg command synchronously by anyway i.e. RxJava etc. One tip that I found is to use ListenableWorker but it’s documentation says that it stops working after 10 minutes. So, i don’t want to go with that solution. Following is the method of FFmpeg just like any other async method. How can i make it synchronous or integrate it with RxJava ? Any ideas would be appreciable.

   ffmpeg.execute(command, new ExecuteBinaryResponseHandler() {
  
                      @Override
  
                      public void onFailure(String s) {
  
                      }
  
  
  
                      @Override
  
                      public void onSuccess(String s) {
  
                         uploadMediaItem(mediaUpload);
  
                      }
  
  
  
                      @Override
  
                      public void onProgress(String s) {
  
                      }
  
  
  
                      @Override
  
                      public void onStart() {
  
                      }
  
  
  
                      @Override
  
                      public void onFinish() {
  
  
  
                          // countDownLatch.countDown();
  
  
  
                      }
  
                  });

  This is the flow of my Worker :

  1. check pending post count in DB.
  2. Pick first post and check if it has pending media list to upload.
  3. Pick media recursively and check if editing is required on it or not.
  4. Apply FFmpeg editing and upload and delete from DB.
  5. Repeat the cycle until last entry in the DB.

  Thanks