capturesession set camera out resolution on Mac, but it seems failed

Question

Created Dec ’20

Replies 3

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Participants 3

i try to set camera output resolution on Mac, but it seems failed
my code as below
if ([self.captureSession canSetSessionPreset:AVCaptureSessionPreset640x480]){
[[self captureSession] setSessionPreset:AVCaptureSessionPreset640x480];
}
when i debug, the preset is set successfully.
but the video output is till 1280*720

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Answer 1

cindyli OP

Dec ’20

by the way, same code run on iOS, the preset works well

0

Answer 2

yuriaskin OP

Apr ’22

any updates ?

0

Answer 3

ObCG OP

Apr ’22

The solution that worked for me was adding: kCVPixelBufferWidthKey and kCVPixelBufferHeightKey with the resolution to the videoSettings property of AVCaptureVideoDataOutput object.

1