Core Audio: Audio Time Stamp

Contact ADC

< Previous PageNext Page >

Hide TOC

Audio Time Stamp

AudioTimeStamp

Encapsulates time stamp information in various formats.

typedef struct AudioTimeStamp {
Float64 mSampleTime;
UInt64 mHostTime;
Float64 mRateScalar;
UInt64 mWordClockTime;
SMPTETime mSMPTETime;
UInt32 mFlags;
UInt32 mReserved;
} AudioTimeStamp;

Availability

Available in Mac OS X v10.0 and later.

Declared In

CoreAudioTypes.h

Time Stamp Flags

The mFlags value in AudioTimeStamp uses these values, which signify which time formats are valid.

kAudioTimeStampSampleTimeValid = (1L << 0),

kAudioTimeStampHostTimeValid = (1L << 1),

kAudioTimeStampRateScalarValid = (1L << 2),

kAudioTimeStampWordClockTimeValid = (1L << 3),

kAudioTimeStampSMPTETimeValid = (1L << 4)

< Previous PageNext Page >

Hide TOC

Last updated: 2004-03-25

Did this document help you?
Yes: Tell us what works for you. It’s good, but: Report typos, inaccuracies, and so forth. It wasn’t helpful: Tell us what would have helped.




	Get information on Apple products. Visit the Apple Store online or at retail locations. 1-800-MY-APPLE Copyright © 2007 Apple Inc. All rights reserved. \| Terms of use \| Privacy Notice