System.PortAudio

Initialization

withPortAudio :: IO a -> IO a

data Error

Constructors

NotInitialized

UnanticipatedHostError

InvalidChannelCount

InvalidSampleRate

InvalidDevice

InvalidFlag

SampleFormatNotSupported

BadIODeviceCombination

InsufficientMemory

BufferTooBig

BufferTooSmall

NullCallback

BadStreamPtr

TimedOut

InternalError

DeviceUnavailable

IncompatibleHostApiSpecificStreamInfo

StreamIsStopped

StreamIsNotStopped

InputOverflowed

OutputUnderflowed

HostApiNotFound

InvalidHostApi

CanNotReadFromACallbackStream

CanNotWriteToACallbackStream

CanNotReadFromAnOutputOnlyStream

CanNotWriteToAnInputOnlyStream

IncompatibleStreamHostApi

BadBufferPtr

Instances

Enum Error

Methods

succ :: Error -> Error

pred :: Error -> Error

toEnum :: Int -> Error

fromEnum :: Error -> Int

enumFrom :: Error -> [Error]

enumFromThen :: Error -> Error -> [Error]

enumFromTo :: Error -> Error -> [Error]

enumFromThenTo :: Error -> Error -> Error -> [Error]

Eq Error

Methods

(==) :: Error -> Error -> Bool

(/=) :: Error -> Error -> Bool

Ord Error

Methods

compare :: Error -> Error -> Ordering

(<) :: Error -> Error -> Bool

(<=) :: Error -> Error -> Bool

(>) :: Error -> Error -> Bool

(>=) :: Error -> Error -> Bool

max :: Error -> Error -> Error

min :: Error -> Error -> Error

Show Error

Methods

showsPrec :: Int -> Error -> ShowS

show :: Error -> String

showList :: [Error] -> ShowS

Exception Error

Methods

toException :: Error -> SomeException

fromException :: SomeException -> Maybe Error

displayException :: Error -> String

Devices

getDevices :: IO ([Device Input], [Device Output])

data Device t

Constructors

Device

Fields

• deviceIndex :: CInt
• deviceName :: String
• deviceMaxChannels :: Int
• deviceLowLatency :: Double
• deviceHighLatency :: Double
• deviceDefaultSampleRate :: Double

Instances

Eq (Device t)

Methods

(==) :: Device t -> Device t -> Bool

(/=) :: Device t -> Device t -> Bool

Ord (Device t)

Methods

compare :: Device t -> Device t -> Ordering

(<) :: Device t -> Device t -> Bool

(<=) :: Device t -> Device t -> Bool

(>) :: Device t -> Device t -> Bool

(>=) :: Device t -> Device t -> Bool

max :: Device t -> Device t -> Device t

min :: Device t -> Device t -> Device t

Show (Device t)

Methods

showsPrec :: Int -> Device t -> ShowS

show :: Device t -> String

showList :: [Device t] -> ShowS

data Input

data Output

Opening a stream

withStream

Arguments

:: (Storable i, Storable o)

=> Double

sampling rate

-> Int

buffer size

-> Maybe (StreamParameters Input i)

-> Maybe (StreamParameters Output o)

-> StreamFlags

-> (Status -> Vector i -> IOVector o -> IO StreamCallbackResult)

callback

-> IO r

-> IO r

data StreamCallbackResult

Constructors

Continue

Complete

Abort

Instances

Enum StreamCallbackResult

Methods

succ :: StreamCallbackResult -> StreamCallbackResult

pred :: StreamCallbackResult -> StreamCallbackResult

toEnum :: Int -> StreamCallbackResult

fromEnum :: StreamCallbackResult -> Int

enumFrom :: StreamCallbackResult -> [StreamCallbackResult]

enumFromThen :: StreamCallbackResult -> StreamCallbackResult -> [StreamCallbackResult]

enumFromTo :: StreamCallbackResult -> StreamCallbackResult -> [StreamCallbackResult]

enumFromThenTo :: StreamCallbackResult -> StreamCallbackResult -> StreamCallbackResult -> [StreamCallbackResult]

Eq StreamCallbackResult

Methods

(==) :: StreamCallbackResult -> StreamCallbackResult -> Bool

(/=) :: StreamCallbackResult -> StreamCallbackResult -> Bool

Ord StreamCallbackResult

Methods

compare :: StreamCallbackResult -> StreamCallbackResult -> Ordering

(<) :: StreamCallbackResult -> StreamCallbackResult -> Bool

(<=) :: StreamCallbackResult -> StreamCallbackResult -> Bool

(>) :: StreamCallbackResult -> StreamCallbackResult -> Bool

(>=) :: StreamCallbackResult -> StreamCallbackResult -> Bool

max :: StreamCallbackResult -> StreamCallbackResult -> StreamCallbackResult

min :: StreamCallbackResult -> StreamCallbackResult -> StreamCallbackResult

Show StreamCallbackResult

Methods

showsPrec :: Int -> StreamCallbackResult -> ShowS

show :: StreamCallbackResult -> String

showList :: [StreamCallbackResult] -> ShowS

Monoid StreamCallbackResult

Methods

mempty :: StreamCallbackResult

mappend :: StreamCallbackResult -> StreamCallbackResult -> StreamCallbackResult

mconcat :: [StreamCallbackResult] -> StreamCallbackResult

Stream parameters

data StreamParameters t a

Instances

Storable (StreamParameters t a)

Methods

sizeOf :: StreamParameters t a -> Int

alignment :: StreamParameters t a -> Int

peekElemOff :: Ptr (StreamParameters t a) -> Int -> IO (StreamParameters t a)

pokeElemOff :: Ptr (StreamParameters t a) -> Int -> StreamParameters t a -> IO ()

peekByteOff :: Ptr b -> Int -> IO (StreamParameters t a)

pokeByteOff :: Ptr b -> Int -> StreamParameters t a -> IO ()

peek :: Ptr (StreamParameters t a) -> IO (StreamParameters t a)

poke :: Ptr (StreamParameters t a) -> StreamParameters t a -> IO ()

streamParameters :: forall t f a. (Applicative f, Foldable f, PortAudioSample a) => Device t -> Double -> Maybe (StreamParameters t (f a))

class PortAudioSample a

Minimal complete definition

paSampleFormat

Instances

PortAudioSample Float

Methods

paSampleFormat :: proxy Float -> CULong

PortAudioSample Int8

Methods

paSampleFormat :: proxy Int8 -> CULong

PortAudioSample Int16

Methods

paSampleFormat :: proxy Int16 -> CULong

PortAudioSample Int32

Methods

paSampleFormat :: proxy Int32 -> CULong

PortAudioSample Word8

Methods

paSampleFormat :: proxy Word8 -> CULong

data Closed

Constructors

Closed

Instances

Storable Closed

Methods

sizeOf :: Closed -> Int

alignment :: Closed -> Int

peekElemOff :: Ptr Closed -> Int -> IO Closed

pokeElemOff :: Ptr Closed -> Int -> Closed -> IO ()

peekByteOff :: Ptr b -> Int -> IO Closed

pokeByteOff :: Ptr b -> Int -> Closed -> IO ()

peek :: Ptr Closed -> IO Closed

poke :: Ptr Closed -> Closed -> IO ()

noConnection :: Maybe (StreamParameters t Closed)

This is Nothing, but it explicitly specifies the stream type with zero-width unit type.

Timestamps and status flags

data Status

Constructors

Status

Fields

• currentTime :: !Double
• inputBufferAdcTime :: !Double
• outputBufferDacTime :: !Double
• inputUnderflow :: !Bool
• inputOverflow :: !Bool
• outputUnderflow :: !Bool
• outputOverflow :: !Bool
• primingOutput :: !Bool

Stream flags

data StreamFlags

Instances

Monoid StreamFlags

Methods

mempty :: StreamFlags

mappend :: StreamFlags -> StreamFlags -> StreamFlags

mconcat :: [StreamFlags] -> StreamFlags

clipOff :: StreamFlags

ditherOff :: StreamFlags

neverDropInput :: StreamFlags

primeOutputBuffersUsingStreamCallback :: StreamFlags