)
where
import Bindings.EsounD
+import Control.Exception.Control
import Control.Monad.IO.Class
+import Control.Monad.IO.Control
import Control.Monad.Trans.Region
import Control.Monad.Trans.Region.OnExit
import Control.Monad.Unicode
import Sound.EsounD.Internals
import System.IO
import System.IO.SaferFileHandles.Unsafe
-
+import Text.Printf
-- ^ An opaque ESD handle for playing a stream.
data Player fr ch (r ∷ ★ → ★)
dup pl = do ch' ← dup (plCloseH pl)
return pl { plCloseH = ch' }
-instance Frame fr ⇒ Writable (Player fr Mono) (L.Vector fr) where
- write pl v
- = liftIO $ sanitizeIOError $ L.hPut (plHandle pl) v
+instance Stream (Player fr ch) where
+ streamSampleRate = plRate
+
+instance Frame fr ⇒ WritableStream (Player fr Mono) (L.Vector fr) where
+ writeFrames pl v
+ = liftIO $
+ sanitizeIOError $
+ do L.hPut (plHandle pl) v
+ hFlush (plHandle pl)
-instance Frame fr ⇒ Writable (Player fr Stereo) (L.Vector fr, L.Vector fr) where
- write pl (l, r)
- = liftIO $ sanitizeIOError $ L.hPut (plHandle pl) (interleave l r)
+instance Frame fr ⇒ WritableStream (Player fr Stereo) (L.Vector fr, L.Vector fr) where
+ writeFrames pl (l, r)
+ = liftIO $
+ sanitizeIOError $
+ do L.hPut (plHandle pl) (interleave l r)
+ hFlush (plHandle pl)
-- | Open an ESD handle for playing a stream.
openPlayer ∷ ∀fr ch s pr.
- ( Frame fr
- , Channels ch
- , MonadIO pr
- )
+ ( Frame fr
+ , Channels ch
+ , MonadControlIO pr
+ )
⇒ Int -- ^ sample rate for the stream.
→ Maybe HostName -- ^ host to connect to.
→ Maybe String -- ^ name used to identify this stream to
-- ESD (if any).
→ RegionT s pr (Player fr ch (RegionT s pr))
openPlayer rate host name
- = do h ← liftIO openSocket
+ = mask_ $
+ do h ← liftIO openSocket
ch ← onExit $ sanitizeIOError $ closeSocket h
return Player {
plRate = rate
hostPtr
namePtr
≫= wrapSocket
- ( "esd_play_stream("
- ⧺ show fmt
- ⧺ ", "
- ⧺ show rate
- ⧺ ", "
- ⧺ show host
- ⧺ ", "
- ⧺ show name
- ⧺ ") returned an error"
+ ( printf "esd_play_stream(%s, %s, %s, %s) returned an error"
+ (show fmt )
+ (show rate)
+ (show host)
+ (show name)
)