ios - AVFoundation - What was minFrameDuration superseded by? -

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i'm walking through part of avfoundation tutorial , 1 of sample parts of code uses avcapturevideodataoutput method "minframeduration". when put own code warning saying it's been depreciated. upon searching "minframeduration", find a documentation page informs me "minframeduration" has been depreciated, superseded, , no longer supported, of course doesn't tell me superseded by. can tell me it's been superseded with? thank much.

that avcaptureconnection's videominframeduration. few links refer to

  1. avfoundation release notes ios 5
  2. this question on so

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