ios - How to fix camera orientation when rotate device -

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i use avfoundation record video. set video orientation: [captureconnection setvideoorientation:avcapturevideoorientationportrait]; when record video, output video looks this:
enter image description here

when rotate device looks this:
enter image description here

i want video first image when rotate device. have do? in advance

i think might help

supportsvideoorientation = no

for more refer link


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