Bounded Stream #
Instance details Defined in Sound.ALSA.PCM.Core.Handle Methods minBound :: Stream # maxBound :: Stream #
Enum Stream #
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 #
Instance details Defined in Sound.ALSA.PCM.Core.Handle Methods (==) :: Stream -> Stream -> Bool # (/=) :: Stream -> Stream -> Bool #
Show Stream #
Instance details Defined in Sound.ALSA.PCM.Core.Handle Methods showsPrec :: Int -> Stream -> ShowS # show :: Stream -> String # showList :: [Stream] -> ShowS #

data Mode #

Instances

Semigroup Mode #
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 #
Instance details Defined in Sound.ALSA.PCM.Core.Handle Methods mempty :: Mode # mappend :: Mode -> Mode -> Mode # mconcat :: [Mode] -> Mode #

modes :: [Mode] -> Mode #

nonBlock :: Mode #

async :: Mode #

data Interleaved #

Instances

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

data Noninterleaved #

Instances

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

type Time = Int #

type SampleFreq = Int #

type Size = Int #

Classes

class Access i #

Minimal complete definition

access, setChannels

Instances

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

Minimal complete definition

sampleFmtToPcmFormat

Instances

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

class SampleFmt y => MonoSampleFmt y #

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

Instances

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

Management of streams

open #

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 () #

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

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

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

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

Data transfer

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

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

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

retry on buffer over-run

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

retry on buffer under-run

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

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 #

Cf. readn.