AudioFileWritePackets

function AudioFileWritePackets(

  inAudioFile: AudioFileID;

  inUseCache: Boolean;

  inNumBytes: UInt32;

  inPacketDescriptions: AudioStreamPacketDescriptionPtr;

  inStartingPacket: SInt64;

  var ioNumPackets: UInt32;

  inBuffer: UnivPtr

):OSStatus;