Consecutive fluent-ffmpeg commands cannot view progress

[TechnoTew]

Version information

• fluent-ffmpeg version: 2.1.2
• ffmpeg version: 0.04
• OS: OSX - Mojave

Code to reproduce

const proceed = new Promise((resolve, reject) => {
                var command = ffmpeg(audioStream)
                .audioBitrate('256')
                //.audioCodec('copy')
                .saveToFile(`${__dirname}/../../MusicFiles/${videoDownloadQueue.videos[0].title}.mp3`)
                .on('progress', (p) => {
                    if (p.targetSize >= 1024) {
                        newMessage.edit(`Audio Download Progress: ${(p.targetSize/1024).toFixed(2)} MB downloaded\nCurrent Speed: ${(p.targetSize / ((Date.now() - start) / 1000)).toFixed(2)} KB/s`);
                    } else {
                        newMessage.edit(`Audio Download Progress: ${p.targetSize} KB downloaded\nCurrent Speed: ${(p.targetSize / ((Date.now() - start) / 1000)).toFixed(2)} KB/s`);
                    }
                })
                .on('error', (err) => {
                    console.log(err);
                    reject();
                })
                .on('end', () => {
                    //new

                    ffmpeg(videoStream)
                    .addInput(`${__dirname}/../../MusicFiles/${videoDownloadQueue.videos[0].title}.mp3`)
                    .saveToFile(`${__dirname}/../../VideoFiles/${videoDownloadQueue.videos[0].title}.mp4`)
                    .on('error', (err) => {
                        console.log(err);
                        reject();
                    })
                    .on('progress', (p) => {
                        console.log(p.targetSize);
                        if (p.targetSize >= 1024) {
                            newMessage.edit(`Video Download Progress: ${(p.targetSize/1024).toFixed(2)} MB downloaded\nCurrent Speed: ${(p.targetSize / ((Date.now() - start) / 1000)).toFixed(2)} KB/s`);
                        } else {
                            newMessage.edit(`Video Download Progress: ${p.targetSize} KB downloaded\nCurrent Speed: ${(p.targetSize / ((Date.now() - start) / 1000)).toFixed(2)} KB/s`);
                        }
                    })
                    .on('end', () => {
                        resolve();
                    });

                    //new
                    //resolve();
                })
            });
await proceed

(note: if the problem only happens with some inputs, include a link to such an input file)

Expected results

Message changing based on progress, both progress being shown

Observed results

Only the audio download progress is shown

[1c7]

Same here! Please fix this.

After some reading on the issue board, turn out this project need maintainer, this project currently is in "low maintain mode" which is understandable, base on this Wiki

[1c7]

This example work fine

var ffmpeg = require('../lib/fluent-ffmpeg');

function run1() {
    var file_path = '/Users/remote_edit/Desktop/fluent-ffmpeg2/examples/test.mp4'
    var command = ffmpeg(file_path);
    command.audioCodec('libmp3lame')
        .videoCodec('libx264')
        .videoBitrate(1000)
        .size('640x480')
        .on('progress', function (progress) {
            console.log('First video: ' + progress.percent + '% done');
        })
        .on('end', function (progress) {
            run2();
        })
        .save('./First.mp4')
}

function run2() {
    console.log('run2 get run');
    var file_path = '/Users/remote_edit/Desktop/fluent-ffmpeg2/examples/test.mp4'
    var command = ffmpeg(file_path);
    command.audioCodec('libmp3lame')
        .videoCodec('libx264')
        .videoBitrate(1000)
        .size('640x480')
        .on('progress', function (progress) {
            console.log('Second video: ' + progress.percent + '% done');
        })
        .on('end', function (progress) {
            console.log('done');
        })
        .save('./Second.mp4')
}

run1();

[1c7]

It's weird, in this example code, it works fine

but in my production code (an Electron.js Desktop App) it has this "progress not correct" issue

[1c7]

My env

• OS: macOS Catalina 10.15.6
• fluent-ffmpeg version: 2.1.2
• ffmpeg version: 4.3.1

[1c7]

I found out what's going on. here is fluent-ffmpeg working correctly:

.save() should be the last, here is the right way to do it

[1c7]

This is wrong way to do it

[1c7]

@TechnoTew I think in your case, saveToFile should be the last one.

This probably works, you can try it, I haven't

[Seblor]

I can confirm this is still a thing, the .save method must be called after the .on methods in the chain