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• Bluebird promise, promise.each only executes once

  20 mars 2017, par kenpeter

  There is a function called musicPromise(). What this function does is

  1. It gets all mp4 files and loop through it.
  2. then it tries to convert each mp4 to mp3, using fluent-ffmpeg

  The problem I am facing is

  1. It only converts 1 file, no matter how many mp4 files I have.

  2. And it seems never reach to proc.on('end', (x) => {

  Full code here :

  // search
  
  const glob = require('glob');
  
  // wait for
  
  const Promise = require('bluebird');
  
  // fs
  
  const fs = require('fs');
  
  // mp3
  
  const ffmpeg = require('fluent-ffmpeg');
  
  
  
  // video source file path
  
  const videoPath = '/home/kenpeter/Videos/4K\ Video\ Downloader';
  
  
  
  // audio source file path
  
  const audioPath = __dirname + "/audio";
  
  
  
  // child process, exec
  
  const exec = require('child_process').exec;
  
  
  
  // now rename promise
  
  function renamePromise() { return new Promise((resolve, reject) => {
  
    glob(videoPath + "/**/*.mp4", (er, files) => {
  
        Promise.each(files, (singleClipFile) => {
  
          return new Promise((resolve1, reject1) => {
  
            let arr = singleClipFile.split("/");
  
            let lastElement = arr[arr.length - 1];
  
            let tmpFileName = lastElement.replace(/[&\/\\#,+()$~%'":*?<>{}\ ]/g, "_");
  
            let tmpFullFile = videoPath + "/"+ tmpFileName;
  
  
  
            // rename it
  
            fs.rename(singleClipFile, tmpFullFile, function(err) {
  
              if ( err ) console.log('ERROR: ' + err);
  
  
  
              console.log("-- Rename one file --");
  
              console.log(tmpFullFile);
  
              resolve1();
  
            }); // end rename
  
          });
  
        })
  
        .then(() => {
  
          console.log('--- rename all files done ---');
  
          resolve();
  
        });
  
      });
  
  
  
    }); // end promise
  
  };
  
  
  
  
  
  // music promise
  
  function musicPromise() { new Promise((resolve, reject) => {
  
      glob(videoPath + "/**/*.mp4", (er, files) => {
  
        Promise.each(files, (singleClipFile) => {
  
          return new Promise((resolve1, reject1) => {
  
            // test
  
            console.log('-- music promise --');
  
            console.log(singleClipFile);
  
  
  
            // split
  
            let arr = singleClipFile.split("/");
  
  
  
            // e.g. xxxx.mp4
  
            let clipFile = arr[arr.length - 1];
  
  
  
            // e.g. xxxx no mp4
  
            let fileName = clipFile.replace(/\.[^/.]+$/, "");
  
  
  
            // music file name
  
            let musicFile = fileName + '.mp3';
  
  
  
            // set source
  
            let proc = new ffmpeg({source: singleClipFile});
  
  
  
            // set ffmpeg path
  
            proc.setFfmpegPath('/usr/bin/ffmpeg');
  
  
  
            // save mp3
  
            proc.output("./audio/" + musicFile);
  
  
  
            // proc on error
  
            proc.on('error', (err) => {
  
              console.log(err);
  
            });
  
  
  
            // done mp3 conversion
  
            proc.on('end', (x) => {
  
              console.log("single mp3 done!");
  
              console.log(x);
  
              // it is resolve1..............
  
              resolve1();
  
            });
  
  
  
            // Run !!!!!!!!!!!!!
  
            proc.run();
  
  
  
          });
  
        })
  
        .then(() => {
  
          console.log('--------- all mp3 conversion done --------');
  
          resolve();
  
        });
  
  
  
      }); // end glob
  
    });
  
  };
  
  
  
  // adb kill
  
  function adbKillPromise() { return new Promise((resolve, reject) => {
  
    exec("adb kill-server", (err, stdout, stderr) => {
  
        if (err) {
  
          console.error(err);
  
          return;
  
        }
  
  
  
        console.log(stdout);
  
        console.log('---adb kill---');
  
        resolve();
  
      });
  
    });
  
  };
  
  
  
  // adb start
  
  function adbStartPromise() { return new Promise((resolve, reject) => {
  
      exec("adb start-server", (err, stdout, stderr) => {
  
        if (err) {
  
          console.error(err);
  
          return;
  
        }
  
  
  
        console.log(stdout);
  
        console.log('---adb start---');
  
        resolve();
  
      });
  
    });
  
  };
  
  
  
  // adb push promise
  
  function adbPushPromise() { return new Promise((resolve, reject) => {
  
    glob(audioPath + "/**/*.mp3", (er, files) => {
  
        Promise.each(files, (singleMusicFile) => {
  
          return new Promise((resolve1, reject1) => {
  
            let cmd = "adb push" + " " + singleMusicFile + " " + "/sdcard/Music";
  
            exec(cmd, (err, stdout, stderr) => {
  
              console.log(cmd);
  
              resolve1();
  
            });
  
          });
  
        })
  
        .then(() => {
  
          console.log('---- done push all music ---');
  
          resolve();
  
        });
  
  
  
      });
  
    });
  
  };
  
  
  
  // Run !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  
  renamePromise()
  
    .then(musicPromise)
  
    .then(adbKillPromise)
  
    .then(adbStartPromise)
  
    .then(adbPushPromise)
  
    .then(() => {
  
      console.log('---- all done----');
  
      process.exit(0);
  
    })
  
    .catch(err => {
  
      console.log('Error', err);
  
      process.exit(1);
  
    });

• Senior Software Engineer for Enterprise Analytics Platform

  28 janvier 2016, par Matthieu Aubry — Uncategorized

  We’re looking for a lead developer to work on Piwik Enterprise Analytics core platform software. We have some exciting challenges to solve and need you !

  You’ll be working with both fellow employees and our open-source community. Piwik staff lives in New Zealand, Europe (Poland, Germany) and in the U.S. We do the vast majority of our collaboration online.

  We are a small, flexible team, so when you come aboard, you will play an integral part in engineering. As a leader you’ll help us to prioritise work and grow our community. You’ll help to create a welcoming environment for new contributors and set an example with your development practices and communications skills. You will be working closely with our CTO to build a future for Piwik.

  Key Responsibilities

  • Strong competency coding in PHP and JavaScript.
  • Scaling existing backend system to handle ever increasing amounts of traffic and new product requirements.
  • Outstanding communication and collaboration skills.
  • Drive development and documentation of internal and external APIs (Piwik is an open platform).
  • Help make our development practices better and reduce friction from idea to deployment.
  • Mentor junior engineers and set the stage for personal growth.

  Minimum qualifications

  • 5+ years of experience in product development, security, usable interface design.
  • 5+ years experience building successful production software systems.
  • Strong competency in PHP5 and JavaScript application development.
  • Skill at writing tests and reviewing code.
  • Strong analytical skills.

  Location

  • Remote work position !
  • or you can join us in our office based in Wellington, New Zealand or in Wrocław, Poland.

  Benefits

  • Competitive salary.
  • Remote work is possible.
  • Yearly meetup with the whole team abroad.
  • Be part of a successful open source company and community.
  • In our Wellington (NZ) and Wroclaw (PL) offices : snacks, coffee, nap room, Table football, Ping pong…
  • Regular events.
  • Great team of people.
  • Exciting projects.

  Learn more

  Learn more what it’s like to work on Piwik in our blog post

  About Piwik

  At Piwik we develop the leading open source web analytics platform, used by more than one million websites worldwide. Our vision is to help the world liberate their analytics data by building the best open alternative to Google Analytics.

  The Piwik platform collects, stores and processes a lot of information : hundreds of millions of data points each month. We create intuitive, simple and beautiful reports that delight our users.

  Apply online

  To apply for this position, please Apply online here. We look forward to receiving your applications !

• Command does not complete when executed through a .NET Process ?

  7 mai 2014, par Abe Miessler

  I am using ffmpeg to convert audio files. If I do it through the command line like so :

  ffmpeg -i sourceAudio.wma -f mp3 destAudio.mp3

  it works fine. But when I attempt to do the same thing in a .net application using a Process, ffmpeg starts (and is visible as a running process in my task manager), but never completes. My .NET code never executes past the "WaitForExit" portion unless I go into my task manager and kill the process manually. Code :

  using(Process process = new Process())
  
  {
  
      process.StartInfo.RedirectStandardOutput = true;
  
      //process.StartInfo.RedirectStandardError = true;
  
      process.StartInfo.FileName = Path.GetDirectoryName(System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName) + @"\ffmpeg.exe";
  
      File.Copy(OrigFilePath, LocalFileName, true);
  
      System.Diagnostics.EventLog.WriteEntry("ASP.NET 2.0.50727.0", "Copied file from: " + OrigFilePath + System.Environment.NewLine + "to: " + LocalFileName);
  
      process.StartInfo.Arguments = String.Format(@"-i ""{0}"" -f mp3 ""{1}""", 
  
                                      LocalFileName, 
  
                                      tempDirectory + NewFileName);
  
  
  
  
  
      process.StartInfo.UseShellExecute = false;
  
      process.StartInfo.CreateNoWindow = false;
  
      process.Start();
  
      System.Diagnostics.EventLog.WriteEntry("ASP.NET 2.0.50727.0", "After start...");
  
      string output =  process.StandardOutput.ReadToEnd() + System.Environment.NewLine + process.StandardError.ReadToEnd();
  
      process.WaitForExit();  //<------------------------------ stalls here
  
      System.Diagnostics.EventLog.WriteEntry("ASP.NET 2.0.50727.0", "Conversion completed!  Copying file from: " + LocalConvertedFile + System.Environment.NewLine + OrigFileFolder + "\\" + NewFileName);
  
  
  
      File.Copy(LocalConvertedFile, OrigFileFolder + "\\" + NewFileName,true);
  
      File.Delete(LocalFileName);
  
      File.Delete(LocalConvertedFile);
  
      sw.Stop();
  
      System.Diagnostics.EventLog.WriteEntry("ASP.NET 2.0.50727.0", "Conversion complete. Elapsed time in seconds: " + sw.ElapsedMilliseconds/1000);
  
      return true;
  
  }

  Does anyone know why the process isn’t exiting like it does in the command line ?