Cannot read property 'write' of undefined

[liyang9331]

[liyang9331]

[genu]

If you look at the example, the print and printErr functions are set. If you don't set those, process.stderr and process.stdout are used by default, which are undefined in browser:

For example, you can do this:

let stdout = "";
let stderr = "";

ffmpeg({
  arguments: ["-version"],
  print: function(data) { stdout += data + "\n"; },
  printErr: function(data) { stderr += data + "\n"; },
});