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• Trying to get property of non-object while uploading to database

  26 November 2017, by Programmmereg

  I have a script when user can clip video, then that video uploads to public folder, and now I want to upload all video data to database. But i get error like in title. Here’s my code:

  Controller:

  public function clip($id)
  
      {
  
          $video = Video::where('id', $id)->first();
  
  
  
          $oldId = $video->id;
  
          $originalName = $video->original_name;
  
          $newName = str_random(50) . '.' . 'mp4';
  
  
  
          FFMpeg::fromDisk('public')
  
          ->open('/uploads/videos/' .$video->file_name)
  
          ->addFilter(function ($filters) {
  
          $filters->clip(FFMpeg\Coordinate\TimeCode::fromSeconds(5), FFMpeg\Coordinate\TimeCode::fromSeconds(2));
  
          })
  
          ->export()
  
          ->toDisk('public')
  
          ->inFormat(new \FFMpeg\Format\Video\X264)
  
          ->save('/uploads/videos/' . $newName);
  
  
  
  
  
  
  
          $data = ['user_id'=>Auth::user()->id,
  
              'file_name'=>$newName,
  
              'original_name'=> $originalName,
  
              'old_id' => $oldId,
  
          ];
  
  
  
           $video = Video::edit($data);
  
      }

  Model:

  public static function edit($request)
  
      {
  
          $video = new Video;
  
          $video->user_id = $request->user_id;
  
          $video->file_name = $request->file_name;
  
          $video->original_name = $request->original_name;
  
          $video->save();
  
  
  
          $old = $file = Video::where('id', $request->old_id)->delete();
  
          //$old_file = unlink($request->file('file'));
  
  
  
          return $video;
  
      }

  What should I edit?

• Pyinstaller exe works halfway on another computer

  21 October 2022, by At Bay

  I created an exe using pyinstaller. I did this by doing the following:

  


  pyinstaller cliptranscript.py


  


  When I run it on another computer, it's works partially. The code starts by asking the user for some arguments, after those inputs I get this error:

  


  Enter directory of wav files: C:\Users\myname\Downloads\&#xA;Enter clip start (seconds): 0&#xA;Enter desired clip length (seconds): 5&#xA;Traceback (most recent call last):&#xA;  File "cliptranscript.py", line 134, in <module>&#xA;  File "cliptranscript.py", line 47, in ffmpeg&#xA;  File "subprocess.py", line 503, in run&#xA;  File "subprocess.py", line 971, in __init__&#xA;  File "subprocess.py", line 1440, in _execute_child&#xA;FileNotFoundError: [WinError 2] The system cannot find the file specified&#xA;[13304] Failed to execute script &#x27;cliptranscript&#x27; due to unhandled exception!&#xA;</module>

  


  I'm using ffmpeg and the libraries os, subprocess, datetime, speech_recognition, and xlsx writer.

  


• Using ffmpeg, I'm trying to mute all 5.1 channels of audio for a period of time within a video

  1 November 2019, by cozmonaut

  I’m wanting to mute audio for a portion of a video clip while keeping the video exactly as it is.

  I came across this online.

  ffmpeg -i ~/Downloads/in.mov -vcodec copy -af "volume=enable='between(t,0,3)':volume=0" ~/Downloads/out2.mov

  Although it works, it converts the 5.1 audio to stereo. Isn’t it possible to mute the first 3 seconds of all 5.1 channels of audio, while keeping the 5.1 channels intact within the finished output video file?

  Here are the specs on my video/audio clip:

  Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], Closed Captions, 59.94 fps, 59.94 tbr, 90k tbn, 119.88 tbc
  
  Stream #0:1[0x101]: Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, stereo, fltp, 192 kb/s
  
  Stream #0:2[0x102]: Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, 5.1(side), fltp, 384 kb/s

  Thank you.