---
title: kAudioFileStreamProperty_ReadyToProducePackets
framework: audiotoolbox
role: symbol
role_heading: Global Variable
path: audiotoolbox/kaudiofilestreamproperty_readytoproducepackets
---

# kAudioFileStreamProperty_ReadyToProducePackets

## Declaration

```swift
var kAudioFileStreamProperty_ReadyToProducePackets: AudioFileStreamPropertyID { get }
```

## Discussion

Discussion A UInt32 value that is 0 until the parser has parsed up to the beginning of the audio data. Once the parser has reached the audio data, the value of this property is set to 1, at which point all the audio file stream properties that can be known are known.

## See Also

### Constants

- [kAudioFileStreamProperty_FileFormat](audiotoolbox/kaudiofilestreamproperty_fileformat.md)
- [kAudioFileStreamProperty_DataFormat](audiotoolbox/kaudiofilestreamproperty_dataformat.md)
- [kAudioFileStreamProperty_FormatList](audiotoolbox/kaudiofilestreamproperty_formatlist.md)
- [kAudioFileStreamProperty_MagicCookieData](audiotoolbox/kaudiofilestreamproperty_magiccookiedata.md)
- [kAudioFileStreamProperty_AudioDataByteCount](audiotoolbox/kaudiofilestreamproperty_audiodatabytecount.md)
- [kAudioFileStreamProperty_AudioDataPacketCount](audiotoolbox/kaudiofilestreamproperty_audiodatapacketcount.md)
- [kAudioFileStreamProperty_MaximumPacketSize](audiotoolbox/kaudiofilestreamproperty_maximumpacketsize.md)
- [kAudioFileStreamProperty_DataOffset](audiotoolbox/kaudiofilestreamproperty_dataoffset.md)
- [kAudioFileStreamProperty_ChannelLayout](audiotoolbox/kaudiofilestreamproperty_channellayout.md)
- [kAudioFileStreamProperty_PacketToFrame](audiotoolbox/kaudiofilestreamproperty_packettoframe.md)
- [kAudioFileStreamProperty_FrameToPacket](audiotoolbox/kaudiofilestreamproperty_frametopacket.md)
- [kAudioFileStreamProperty_PacketToByte](audiotoolbox/kaudiofilestreamproperty_packettobyte.md)
- [kAudioFileStreamProperty_ByteToPacket](audiotoolbox/kaudiofilestreamproperty_bytetopacket.md)
- [kAudioFileStreamProperty_PacketTableInfo](audiotoolbox/kaudiofilestreamproperty_packettableinfo.md)
- [kAudioFileStreamProperty_PacketSizeUpperBound](audiotoolbox/kaudiofilestreamproperty_packetsizeupperbound.md)