FRP.Dunai.Stream

Types

type SignalSampleStream a = SampleStream (DTime, a)

type SampleStream a = [a]

type DTime = Double

Creation

groupDeltas :: [a] -> [DTime] -> SignalSampleStream a

Group a series of samples with a series of time deltas.

The first sample will have no delta. Unused samples and deltas will be dropped.

Obtain samples

samples :: SignalSampleStream a -> [a]

Turn a stream with sampling times into a list of values.

firstSample :: SignalSampleStream a -> a

lastSample :: SignalSampleStream a -> a

Stream manipulation

Merging

sMerge :: (a -> a -> a) -> SignalSampleStream a -> SignalSampleStream a -> SignalSampleStream a

Concatenating

sConcat :: SignalSampleStream a -> SignalSampleStream a -> SignalSampleStream a

Refining

sRefine :: DTime -> a -> SignalSampleStream a -> SignalSampleStream a

refineWith :: (a -> a -> a) -> DTime -> a -> SignalSampleStream a -> SignalSampleStream a

Clipping (dropping samples)

sClipAfterFrame :: Int -> SignalSampleStream a -> SignalSampleStream a

sClipAfterTime :: (Ord t, Num t) => t -> [(t, b)] -> [(t, b)]

sClipBeforeFrame :: Int -> SignalSampleStream a -> SignalSampleStream a

sClipBeforeTime :: DTime -> SignalSampleStream a -> SignalSampleStream a

evalSF :: Monad m => MSF (ReaderT DTime m) a b -> SignalSampleStream a -> m (SampleStream b, MSF (ReaderT DTime m) a b)

evalMSF :: Monad m => MSF m a b -> SampleStream a -> m (SampleStream b, MSF m a b)