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• Pyinstaller exe works halfway on another computer

  21 octobre 2022, par 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.

  


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

  26 novembre 2017, par 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 ?

• How to record/trim/combine audio seamlessly in a React/Node web app

  16 mai 2021, par Rayhan Memon

  I've developed a digital audio workstation for the browser that you can check out here. Essentially it helps authors narrate their own audiobooks themselves at home.

  


  I'm looking to dramatically improve the speed at which audio files are combined or trimmed.

  


  Right now, the user records some variable amount of audio (a line, paragraph, or entire passage). When the user stops recording, this clip is added to the main audio file for the section using ffmpeg.wasm like so :

  


          if (duration === 0) {
            //concatenate the two files (they should already be written to memory)
            await ffmpeg.run('-i', 'concat:fullAudio.mp3|clip.mp3', '-c', 'copy', 'fullAudio.mp3');

        } else {
            //Set the insert time to wherever the user's cursor is positioned
            let insertTime = duration;
            if (selectedObj) {
                insertTime = selectedObj.endTime;
            }

            //split the audio file into two parts at the point we want to insert the audio
            await ffmpeg.run('-i', 'fullAudio.mp3', '-t', `${insertTime}`, '-c', 'copy', 'part1.mp3', '-ss',  `${insertTime}`, '-codec', 'copy', 'part2.mp3');

            //concatenate the three files
            await ffmpeg.run('-i', 'concat:part1.mp3|clip.mp3', '-acodec', 'copy', 'intermediate.mp3');
            await ffmpeg.run('-i', 'concat:intermediate.mp3|part2.mp3', '-acodec', 'copy', 'fullAudio.mp3');
        }

        //Read the result from memory
        const data = ffmpeg.FS('readFile', 'fullAudio.mp3');

        //Create URL so it can be used in the browser
        const url = URL.createObjectURL(new Blob([data.buffer], { type: 'audio/mp3' }));
        globalDispatch({ type: "setFullAudioURL", payload: url });


  


  After every recorded clip, the user is forced to wait a few seconds for this concatenation process to finish up - and the longer the main file or recorded clip gets, the longer the user has to wait. Looking at other browser-based audio editors such as AudioMass, it clearly seems possible to make a seamless recording and editing experience with zero wait time, but I can't seem to figure out how to do the same within my react app.

  


  Is it possible to seamlessly combine or trim audio data within a React app ? Is FFMPEG the best way to go about it, or are there simpler ways using pure javascript ?