gi-gstaudio-0.1.6.13: GI/GstAudio/Structs/AudioFormatInfo.hs

{- |
Copyright  : Will Thompson, Iñaki García Etxebarria and Jonas Platte
License    : LGPL-2.1
Maintainer : Iñaki García Etxebarria (garetxe@gmail.com)

Information for an audio format.
-}

module GI.GstAudio.Structs.AudioFormatInfo
    ( 

-- * Exported types
    AudioFormatInfo(..)                     ,
    newZeroAudioFormatInfo                  ,
    noAudioFormatInfo                       ,


 -- * Properties
-- ** Depth
    audioFormatInfoReadDepth                ,


-- ** Description
    audioFormatInfoReadDescription          ,


-- ** Endianness
    audioFormatInfoReadEndianness           ,


-- ** Flags
    audioFormatInfoReadFlags                ,


-- ** Format
    audioFormatInfoReadFormat               ,


-- ** Name
    audioFormatInfoReadName                 ,


-- ** UnpackFormat
    audioFormatInfoReadUnpackFormat         ,


-- ** Width
    audioFormatInfoReadWidth                ,




    ) where

import Prelude ()
import Data.GI.Base.ShortPrelude

import qualified Data.Text as T
import qualified Data.ByteString.Char8 as B
import qualified Data.Map as Map

import GI.GstAudio.Types
import GI.GstAudio.Callbacks

newtype AudioFormatInfo = AudioFormatInfo (ForeignPtr AudioFormatInfo)
-- | Construct a `AudioFormatInfo` struct initialized to zero.
newZeroAudioFormatInfo :: MonadIO m => m AudioFormatInfo
newZeroAudioFormatInfo = liftIO $ callocBytes 104 >>= wrapPtr AudioFormatInfo

noAudioFormatInfo :: Maybe AudioFormatInfo
noAudioFormatInfo = Nothing

audioFormatInfoReadFormat :: AudioFormatInfo -> IO AudioFormat
audioFormatInfoReadFormat s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 0) :: IO CUInt
    let val' = (toEnum . fromIntegral) val
    return val'

audioFormatInfoReadName :: AudioFormatInfo -> IO T.Text
audioFormatInfoReadName s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 8) :: IO CString
    val' <- cstringToText val
    return val'

audioFormatInfoReadDescription :: AudioFormatInfo -> IO T.Text
audioFormatInfoReadDescription s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 16) :: IO CString
    val' <- cstringToText val
    return val'

audioFormatInfoReadFlags :: AudioFormatInfo -> IO [AudioFormatFlags]
audioFormatInfoReadFlags s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 24) :: IO CUInt
    let val' = wordToGFlags val
    return val'

audioFormatInfoReadEndianness :: AudioFormatInfo -> IO Int32
audioFormatInfoReadEndianness s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 28) :: IO Int32
    return val

audioFormatInfoReadWidth :: AudioFormatInfo -> IO Int32
audioFormatInfoReadWidth s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 32) :: IO Int32
    return val

audioFormatInfoReadDepth :: AudioFormatInfo -> IO Int32
audioFormatInfoReadDepth s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 36) :: IO Int32
    return val

-- XXX Skipped getter for "AudioFormatInfo:silence" :: Not implemented: "Don't know how to unpack C array of type TCArray False 8 (-1) (TBasicType TUInt8)"

audioFormatInfoReadUnpackFormat :: AudioFormatInfo -> IO AudioFormat
audioFormatInfoReadUnpackFormat s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 48) :: IO CUInt
    let val' = (toEnum . fromIntegral) val
    return val'

-- XXX Skipped getter for "AudioFormatInfo:unpack_func" :: Not implemented: "Wrapping foreign callbacks is not supported yet"

-- XXX Skipped getter for "AudioFormatInfo:pack_func" :: Not implemented: "Wrapping foreign callbacks is not supported yet"

type family ResolveAudioFormatInfoMethod (t :: Symbol) (o :: *) :: * where
    ResolveAudioFormatInfoMethod l o = MethodResolutionFailed l o

instance (info ~ ResolveAudioFormatInfoMethod t AudioFormatInfo, MethodInfo info AudioFormatInfo p) => IsLabelProxy t (AudioFormatInfo -> p) where
    fromLabelProxy _ = overloadedMethod (MethodProxy :: MethodProxy info)

#if MIN_VERSION_base(4,9,0)
instance (info ~ ResolveAudioFormatInfoMethod t AudioFormatInfo, MethodInfo info AudioFormatInfo p) => IsLabel t (AudioFormatInfo -> p) where
    fromLabel _ = overloadedMethod (MethodProxy :: MethodProxy info)
#endif