Bounded Stream Source #
Instance details Defined in Sound.ALSA.PCM.Core.Handle Methods minBound :: Stream # maxBound :: Stream #
Enum Stream Source #
Instance details Defined in Sound.ALSA.PCM.Core.Handle Methods succ :: Stream -> Stream # pred :: Stream -> Stream # toEnum :: Int -> Stream # fromEnum :: Stream -> Int # enumFrom :: Stream -> [Stream] # enumFromThen :: Stream -> Stream -> [Stream] # enumFromTo :: Stream -> Stream -> [Stream] # enumFromThenTo :: Stream -> Stream -> Stream -> [Stream] #
Eq Stream Source #
Instance details Defined in Sound.ALSA.PCM.Core.Handle Methods (==) :: Stream -> Stream -> Bool # (/=) :: Stream -> Stream -> Bool #
Show Stream Source #
Instance details Defined in Sound.ALSA.PCM.Core.Handle Methods showsPrec :: Int -> Stream -> ShowS # show :: Stream -> String # showList :: [Stream] -> ShowS #

data Mode Source #

Instances

Semigroup Mode Source #
Instance details Defined in Sound.ALSA.PCM.Core.Handle Methods (<>) :: Mode -> Mode -> Mode # sconcat :: NonEmpty Mode -> Mode # stimes :: Integral b => b -> Mode -> Mode #
Monoid Mode Source #
Instance details Defined in Sound.ALSA.PCM.Core.Handle Methods mempty :: Mode # mappend :: Mode -> Mode -> Mode # mconcat :: [Mode] -> Mode #

modes :: [Mode] -> Mode Source #

nonBlock :: Mode Source #

async :: Mode Source #

data Interleaved Source #

Instances

Access Interleaved Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class Methods access :: T Interleaved y Access setChannels :: C y => T Interleaved y ()

data Noninterleaved Source #

Instances

Access Noninterleaved Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class Methods access :: T Noninterleaved y Access setChannels :: C y => T Noninterleaved y ()

type Time = Int Source #

type SampleFreq = Int Source #

type Size = Int Source #

Classes

class Access i Source #

Minimal complete definition

access, setChannels

Instances

Access Noninterleaved Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class Methods access :: T Noninterleaved y Access setChannels :: C y => T Noninterleaved y ()
Access Interleaved Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class Methods access :: T Interleaved y Access setChannels :: C y => T Interleaved y ()

class (Storable y, C y) => SampleFmt y Source #

Minimal complete definition

sampleFmtToPcmFormat

Instances

SampleFmt Double Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class Methods sampleFmtToPcmFormat :: Double -> Format Source #
SampleFmt Float Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class Methods sampleFmtToPcmFormat :: Float -> Format Source #
SampleFmt Int8 Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class Methods sampleFmtToPcmFormat :: Int8 -> Format Source #
SampleFmt Int16 Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class Methods sampleFmtToPcmFormat :: Int16 -> Format Source #
SampleFmt Int32 Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class Methods sampleFmtToPcmFormat :: Int32 -> Format Source #
SampleFmt Word8 Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class Methods sampleFmtToPcmFormat :: Word8 -> Format Source #
SampleFmt Word16 Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class Methods sampleFmtToPcmFormat :: Word16 -> Format Source #
SampleFmt Word32 Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class Methods sampleFmtToPcmFormat :: Word32 -> Format Source #
SampleFmt T Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class Methods sampleFmtToPcmFormat :: T -> Format Source #
SampleFmt a => SampleFmt (T a) Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class Methods sampleFmtToPcmFormat :: T a -> Format Source #

class SampleFmt y => MonoSampleFmt y Source #

Sample types of this class must have exactly one channel, i.e. Frame.numberOfChannels == 1.

Instances

MonoSampleFmt Double Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class
MonoSampleFmt Float Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class
MonoSampleFmt Int8 Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class
MonoSampleFmt Int16 Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class
MonoSampleFmt Int32 Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class
MonoSampleFmt Word8 Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class
MonoSampleFmt Word16 Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class
MonoSampleFmt Word32 Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class
MonoSampleFmt T Source #
Instance details Defined in Sound.ALSA.PCM.Core.Class

Management of streams

open Source #

Arguments

:: (Access i, SampleFmt y)
=> Mode
-> Stream
-> T i y a
-> (a -> T i y b)
-> String	device, e.g `"default"`
-> IO (b, Handle i y)

close :: Handle i y -> IO () Source #

prepare :: Handle i y -> IO () Source #

start :: Handle i y -> IO () Source #

drop :: Handle i y -> IO () Source #

drain :: Handle i y -> IO () Source #

Data transfer

readi :: SampleFmt y => Handle Interleaved y -> Ptr y -> Size -> IO Size Source #

writei :: SampleFmt y => Handle Interleaved y -> Ptr y -> Size -> IO Size Source #

readiRetry :: SampleFmt y => Handle Interleaved y -> Ptr y -> Size -> IO Size Source #

retry on buffer over-run

writeiRetry :: SampleFmt y => Handle Interleaved y -> Ptr y -> Size -> IO Size Source #

retry on buffer under-run

readn :: MonoSampleFmt y => Handle Noninterleaved y -> Ptr (Ptr y) -> Size -> IO Size Source #

The Ptr (Ptr y) argument is actually a pointer to an array of pointers. The array must have the size of number of channels. In Noninterleaved mode you must set the number of channels manually using setChannels or its friends. It is an unchecked error if the number of channels set with setChannels does not match the array size in the readn call.

writen :: MonoSampleFmt y => Handle Noninterleaved y -> Ptr (Ptr y) -> Size -> IO Size Source #

Cf. readn.