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• NodeJs watch file Chokidar and create Thumbnail with FFMPEG, Code is hanging. Memory jam ?

  30 juillet 2021, par Mert

  I'm trying watch file Chokidar. Mp4 files in Folder. And I'm trying watch folder with create thumnail. But My code is hanging. It's getting stuck. I'm waiting ten min but i didnt get error and my code worked more little. Again, I'm waiting more ten min. But no change anything.

  


  Code :

  


  let fs = require('fs');
var chokidar = require('chokidar');
const ffmpegInstaller = require('@ffmpeg-installer/ffmpeg');
const ffmpeg = require('fluent-ffmpeg');
ffmpeg.setFfmpegPath(ffmpegInstaller.path)

var counter = 0

var Mywatcher = chokidar.watch('Z:\\WatchFolder', {ignored: /^\./, persistent: true, usePolling: true});
Mywatcher
  .on('add', function(path) {
    worder = '.mp4'
    if(path.includes(worder)){
 
            counter = counter + 1 
            
            console.log('added' + counter)

            ffmpeg({ source: path })
            .on('filenames', (filenames) => {
                console.log('Created file names', filenames);
            })
            .on('end', () => {
                console.log('Job done');
            })
            .on('error', (err) => {
                console.log('Error', err);
            })
            .takeScreenshots({
                filename: counter +'.jpg',
                timemarks: [ 2 ],
             
            }, 'public/images/thumbnail/');
      
    }

    })

  .on('change', function(path) {console.log('File', path, 'has been changed');})



  .on('unlink', function(path) {

  })




  .on('error', function(error) {console.error('Error happened', error);})


  


  First Result : 1300 thumbnail completed. But not yet created. Thumbnail's folder is empty. My code is stuck.

  


  added13023
Created file names [ '13023.jpg' ]
added13024
Created file names [ '13024.jpg' ]
added13025
Created file names [ '13025.jpg' ]
added13026
Created file names [ '13026.jpg' ]
added13027
Created file names [ '13027.jpg' ]
added13028
Created file names [ '13028.jpg' ]
added13029
Created file names [ '13029.jpg' ]
added13030
Created file names [ '13030.jpg' ]
added13031
Created file names [ '13031.jpg' ]
added13032
Created file names [ '13032.jpg' ]
added13033
Created file names [ '13033.jpg' ]
added13034
Created file names [ '13034.jpg' ]
added13035
Created file names [ '13035.jpg' ]
added13036
Created file names [ '13036.jpg' ]


  


  Again I'm trying, i write 'nodemon start' and Result :

  


  Created file names [ '13026.jpg' ]
added13027
Created file names [ '13027.jpg' ]
added13028
Created file names [ '13028.jpg' ]
added13029
Created file names [ '13029.jpg' ]
added13030
Created file names [ '13030.jpg' ]
added13031
Created file names [ '13031.jpg' ]
added13032
Created file names [ '13032.jpg' ]
added13033
Created file names [ '13033.jpg' ]
added13034
Created file names [ '13034.jpg' ]
added13035
Created file names [ '13035.jpg' ]
added13036
Created file names [ '13036.jpg' ]
added13037
Created file names [ '13037.jpg' ]


  


  How can i fix it ? Thanks all. Regards.

  


• Revision 581731a95f : vp8enc : Prevent out of bounds memory access. Prevent out of bounds access when

  17 janvier 2015, par Alex Converse

  Changed Paths :
   Modify /vp8/encoder/onyx_if.c

  
   Modify /vp8/encoder/onyx_int.h

  
   Modify /vp8/vp8_cx_iface.c

  
  
  vp8enc : Prevent out of bounds memory access.

  Prevent out of bounds access when attempting to increase frame size

  Change-Id : I710c40c692802a72963c9680c2125da17f9060a9

• Can you access a picked StorageFile from its Path ? - UWP

  17 août 2020, par HooptyDoopty

  I need to be able to access a file from it's path in a UWP application.

  


  The file is first selected by the user using OpenFilePicker. I then need to pass this file on to an FFmpeg wrapper that sets its input from a file path. Currently, I get access denied errors for any file that is outside the apps local storage (as expected).

  


  FileOpenPicker filePicker = new FileOpenPicker();
filePicker.ViewMode = PickerViewMode.Thumbnail;
filePicker.FileTypeFilter.Add("*");


var file = await filePicker.PickSingleFileAsync();


FFMpegArguments
   .FromInputFiles(file.Path.ToString())


  


  Is there a way to retain the apps permission to this file when it is accessed by a path string (file.Path.ToString()) rather then a storage file instance ? Have been looking into FutureAccessList but that seems to only provide another storage file instance later rather then allow for path access to the same file. I'd like to not enable broad file system access as I only need access to a single file that has already been picked by the user.

  


  Thanks !