Contents

kVTCompressionPropertyKey_Quality

The desired compression quality.

Declaration

let kVTCompressionPropertyKey_Quality: CFString

Discussion

Some encoders, such as JPEG, describe the compression level of each image with a quality value. This value should be specified as a number in the range of 0.0 to 1.0, where low = 0.25, normal = 0.50, high = 0.75, and 1.0 implies lossless compression for encoders that support it.

See Also

Rate Control