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Médias (1)
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Carte de Schillerkiez
13 mai 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
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Senior Software Engineer for Enterprise Analytics Platform
28 janvier 2016, par Matthieu Aubry — UncategorizedWe’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.
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- 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).
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- 5+ years experience building successful production software systems.
- Strong competency in PHP5 and JavaScript application development.
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Location
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Apply online
To apply for this position, please Apply online here. We look forward to receiving your applications !
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Nodejs ffmpeg "The input file path can not be empty" error, but files exist
29 octobre 2022, par 0sziI'm trying to merge an audio file with a video file from the same source (Youtube)


In the following code I first read in the console parameters wirh commander then i define the videoOutput dir and download the highset res. video from youtube with node-ytdl-core. After that I download the audio for the video. and in the callback of the video.on("end", ....)
i call the function merge()


const path = require('path');
const fs = require('fs');
const readline = require("readline");
const ytdl = require('ytdl-core');
const { program } = require('commander');
const ffmpeg = require('ffmpeg');

program
 .option("--url, --url <url>", "Youtube video url")
 .option("--name, --name <name>", "Name of the video in hard drive")

program.parse(process.argv);


const options = program.opts();
let url = options.url;
let name = options.name;

let videoOutput = path.resolve(`./video${name}.mp4`);

let video = ytdl(url, {
 quality: "highestvideo"
});

let starttime = 0;

video.pipe(fs.createWriteStream(videoOutput));

video.once('response', () => {
 starttime = Date.now();
});

video.on('progress', (chunkLength, downloaded, total) => {
 const percent = downloaded / total;
 const downloadedMinutes = (Date.now() - starttime) / 1000 / 60;
 const estimatedDownloadTime = (downloadedMinutes / percent) - downloadedMinutes;
 readline.cursorTo(process.stdout, 0);
 process.stdout.write(`${(percent * 100).toFixed(2)}% downloaded `);
 process.stdout.write(`(${(downloaded / 1024 / 1024).toFixed(2)}MB of ${(total / 1024 / 1024).toFixed(2)}MB)\n`);
 process.stdout.write(`running for: ${downloadedMinutes.toFixed(2)}minutes`);
 process.stdout.write(`, estimated time left: ${estimatedDownloadTime.toFixed(2)}minutes `);
 readline.moveCursor(process.stdout, 0, -1);
 });

 video.on('end', () => {
 process.stdout.write('\n\n');
 });


// repeat for audio
video = ytdl(url, {
 quality: "highestaudio"
});
 
starttime = 0;

let audioOutput = path.resolve(`./audio${name}.mp3`);

video.pipe(fs.createWriteStream(audioOutput));

video.once('response', () => {
 starttime = Date.now();
});

video.on('progress', (chunkLength, downloaded, total) => {
 const percent = downloaded / total;
 const downloadedMinutes = (Date.now() - starttime) / 1000 / 60;
 const estimatedDownloadTime = (downloadedMinutes / percent) - downloadedMinutes;
 readline.cursorTo(process.stdout, 0);
 process.stdout.write(`${(percent * 100).toFixed(2)}% downloaded `);
 process.stdout.write(`(${(downloaded / 1024 / 1024).toFixed(2)}MB of ${(total / 1024 / 1024).toFixed(2)}MB)\n`);
 process.stdout.write(`running for: ${downloadedMinutes.toFixed(2)}minutes`);
 process.stdout.write(`, estimated time left: ${estimatedDownloadTime.toFixed(2)}minutes `);
 readline.moveCursor(process.stdout, 0, -1);
 });


function merge(){
 ffmpeg()
 .input("./videotest.mp4") //your video file input path
 .input("./audiotest.mp3") //your audio file input path
 .output("./finished.mp4") //your output path
 .outputOptions(['-map 0:v', '-map 1:a', '-c:v copy', '-shortest'])
 .on('start', (command) => {
 console.log('TCL: command -> command', command)
 })
 .on('error', (error) => console.log("errrrr",error))
 .on('end',()=>console.log("Completed"))
 .run() 
}

video.on('end', () => {
 process.stdout.write('\n\n');
 merge();
});

</name></url>

But even though the files are there ffmpeg throws me this error :



I also tried this in the video-end callback, because maybe the audio is finished downloading before the video, still doesn't work. I've also tried to rename the outputDirs for the files and keep the old files and rerun the script so the files are 100% there. Still doesn't work.


I have also tried absolute paths ("C :/..." also with backslash "C :\...") but I still get the error message that the input file path can't be empty.


Appreciate any piece of advise or help !


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Revision 31973 : Petite bourde : on ne peut importer aussi que s’il y a le plugin YAML. ...
8 octobre 2009, par rastapopoulos@… — LogPetite bourde : on ne peut importer aussi que s’il y a le plugin YAML. Évidemment.
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