Sets white balance to locked mode with the specified deviceWhiteBalanceGains values.
- iOS 8.0+
A block to be called when white balance gains have been set to the values specified and
AVCapture. The block receives a timestamp matching that of the first buffer to which all settings have been applied. The timestamp is synchronized to the device clock, and thus must be converted to the master clock before comparison with the timestamps of buffers delivered via an
Device .White Balance Mode .locked
Video Data Output
This parameter may be
nilif synchronization is not required.
For each channel in the
white structure, only values between 1.0 and
max are supported. Gain values are normalized to the minimum channel value to avoid brightness changes (for example,
R: is normalized to
This method throws an
invalid if any of the
white fields are set to an unsupported level. This method throws a
generic if called without first obtaining exclusive access to the receiver using