I want to change the video size

[zhishaofei3]

Version information

• fluent-ffmpeg version: 2.1.2
• ffmpeg version: 4.2.2
• OS: mac

Code to reproduce

var ffmpeg = require('fluent-ffmpeg')

ffmpeg({source: 'teacher.mp4'})
.size('1024x768').aspect(1.33333)
.output('oteacher.mp4')
.run()

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

Expected results

I have a source video 1280720(16:9), I want convert to 1024768(4:3), I want video scale stretch

I want get a output video with 1024768(otaecher.mp4) from 1280720(teacher.mp4). But the oteacher.mp4 Aspect ratio is 16:9, it's not 4:3

oteacher.mp4: sample_aspect_ratio: '4:3', display_aspect_ratio: '4:3', I want display_aspect_ratio is '4:3'

How to write the code ? thank you !

Observed results

oteacher.mp4: sample_aspect_ratio: '4:3', display_aspect_ratio: '16:9',

Checklist

• [x] I have read the FAQ
• [x] I tried the same with command line ffmpeg and it works correctly (hint: if the problem also happens this way, this is an ffmpeg problem and you're not reporting it to the right place)
• [x] I have included full stderr/stdout output from ffmpeg

[schizobulia]

I wonder if I can help you

example code

const FfmpegCommand = require('fluent-ffmpeg');
FfmpegCommand(`input.mp4`)
    .size('1024x768').autopad()
    .save('out.mp4')
    .on('start', () => {
    })
    .on('end', () => {
    })
    .on('stderr', function (stderrLine) {
        console.log(stderrLine);
    })
    .on('error', function (err) {
        console.log(err)
    });