Extended Audio File Services

Overview

Extended Audio File Services provides simplified audio file access, combining features of Audio File Services and Audio Converter Services. It provides a unified interface for reading and writing compressed as well as linear PCM audio files.

Topics

Managing Extended Audio File Objects

• ExtAudioFileCreateWithURL(_:_:_:_:_:_:)
• ExtAudioFileDispose(_:)
• ExtAudioFileOpenURL(_:_:)
• ExtAudioFileWrapAudioFileID(_:_:_:)

Configuring Properties for Extended Audio File Objects

• ExtAudioFileGetProperty(_:_:_:_:)
• ExtAudioFileGetPropertyInfo(_:_:_:_:)
• ExtAudioFileSetProperty(_:_:_:_:)

Reading and Writing Audio Data

• ExtAudioFileRead(_:_:_:)
• ExtAudioFileSeek(_:_:)
• ExtAudioFileTell(_:_:)
• ExtAudioFileWrite(_:_:_:)
• ExtAudioFileWriteAsync(_:_:_:)

Data Types

• ExtAudioFilePacketTableInfoOverride
• ExtAudioFileRef
• ExtAudioFilePropertyID

Constants

• Extended Audio FIle Errors
• Codec Unavailable Errors
• Property Identifiers for Extended Audio File Objects
• Extended Audio File Packet Overrides

Result Codes

• kExtAudioFileError_CodecUnavailableInputConsumed
• kExtAudioFileError_CodecUnavailableInputNotConsumed
• kExtAudioFileError_InvalidProperty
• kExtAudioFileError_InvalidPropertySize
• kExtAudioFileError_NonPCMClientFormat
• kExtAudioFileError_InvalidChannelMap
• kExtAudioFileError_InvalidOperationOrder
• kExtAudioFileError_InvalidDataFormat
• kExtAudioFileError_MaxPacketSizeUnknown
• kExtAudioFileError_InvalidSeek
• kExtAudioFileError_AsyncWriteTooLarge
• kExtAudioFileError_AsyncWriteBufferOverflow

See Also

Audio Files and Formats

• Audio Format Services
• Audio File Services
• Audio File Stream Services
• Audio File Components
• Core Audio File Format