CODEWITHSUNDEEP
flutterflutter-dependencies
JayVDiyk
JayVDiyk

Reputation: 4487

Recorded Video File Using Front Camera Is Not Mirrored Flutter

I am using the Camera package for Flutter to record videos

The problem is that the resulted video output is not mirrored like the preview when the app is recording using the front camera

Any thoughts on how to flip/mirror the resulted video when its recorded using the front camera?

Upvotes: 1

Views: 2154

Answers (1)

FDuhen
FDuhen

Reputation: 4836

If you're using this camera plugin this option doesn't seem to exist yet.

Solution 1 - Use a package like flutter_ffmpeg to flip the file once the video is recorded. The following snippet works :

saveVideo().then((XFile? file) async {
  if (file != null) {        
    await _flutterFFmpeg.execute("-y -i " +
        "${file.path} " +
        "-filter:v \"hflip\" " +
        "${file.path}_flipped.mp4").then((_) => _doWhateverYouWant());
  }
});

Note that it takes some time and that the video is persisted once in cache with the Camera plugin, and a second time when you flip the whole video.

Solution 2 - Flip the camera preview using the Transform widget

import 'dart:math' as math;

//...
Transform(
   alignment: Alignment.center,
   transform: Matrix4.rotationY(math.pi),
   child: CameraPreview(controller),
)
//...

This way the rendering will match the preview.
Of course, don't forget to handle it only if your user is using the Front Camera.

Upvotes: 2

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