-- GENERATED by C->Haskell Compiler, version 0.13.6 (gtk2hs branch) "Bin IO", 27 May 2012 (Haskell)
-- Edit the ORIGNAL .chs file instead!


{-# LINE 1 "./Media/Streaming/GStreamer/Core/Parse.chs" #-}
--  GIMP Toolkit (GTK) Binding for Haskell: binding to gstreamer -*-haskell-*-
--
--  Author : Peter Gavin
--  Created: 1-Apr-2007
--
--  Copyright (c) 2007 Peter Gavin
--
--  This library is free software: you can redistribute it and/or
--  modify it under the terms of the GNU Lesser General Public License
--  as published by the Free Software Foundation, either version 3 of
--  the License, or (at your option) any later version.
--  
--  This library is distributed in the hope that it will be useful,
--  but WITHOUT ANY WARRANTY; without even the implied warranty of
--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
--  Lesser General Public License for more details.
--  
--  You should have received a copy of the GNU Lesser General Public
--  License along with this program.  If not, see
--  <http://www.gnu.org/licenses/>.
--  
--  GStreamer, the C library which this Haskell library depends on, is
--  available under LGPL Version 2. The documentation included with
--  this library is based on the original GStreamer documentation.
--  
-- | Maintainer  : gtk2hs-devel@lists.sourceforge.net
--   Stability   : alpha
--   Portability : portable (depends on GHC)
module Media.Streaming.GStreamer.Core.Parse (
  parseLaunch,
  parseLaunchFromArgs,
  parseBinFromDescription
  ) where

import Media.Streaming.GStreamer.Core.Types
{-# LINE 35 "./Media/Streaming/GStreamer/Core/Parse.chs" #-}
import System.Glib.GError
import System.Glib.UTFString
import System.Glib.FFI


{-# LINE 40 "./Media/Streaming/GStreamer/Core/Parse.chs" #-}

parseLaunch :: String
            -> IO (Maybe Element, Maybe GError)
parseLaunch pipelineDescription =
    withUTFString pipelineDescription $ \cPipelineDescription ->
        alloca $ \gErrorPtr ->
            do element <- gst_parse_launch cPipelineDescription (castPtr gErrorPtr) >>=
                              maybePeek takeObject
               gError <- peek gErrorPtr >>= maybePeek peek
               return (element, gError)

parseLaunchFromArgs :: [String]
                    -> IO (Maybe Element, Maybe GError)
parseLaunchFromArgs args =
    withUTFStringArray0 args $ \cArgs ->
        alloca $ \gErrorPtr ->
            do element <- gst_parse_launchv (castPtr cArgs) (castPtr gErrorPtr) >>=
                              maybePeek takeObject
               gError <- peek gErrorPtr >>= maybePeek peek
               return (element, gError)

parseBinFromDescription :: String
                        -> Bool
                        -> IO (Maybe Element, Maybe GError)
parseBinFromDescription binDescription ghostUnconnectedPads =
    withUTFString binDescription $ \cBinDescription ->
        alloca $ \gErrorPtr ->
            do element <- gst_parse_bin_from_description cBinDescription
                                                                (fromBool ghostUnconnectedPads)
                                                                (castPtr gErrorPtr) >>=
                              maybePeek takeObject
               gError <- peek gErrorPtr >>= maybePeek peek
               return (element, gError)

foreign import ccall safe "gst_parse_launch"
  gst_parse_launch :: ((Ptr CChar) -> ((Ptr (Ptr ())) -> (IO (Ptr Element))))

foreign import ccall safe "gst_parse_launchv"
  gst_parse_launchv :: ((Ptr (Ptr CChar)) -> ((Ptr (Ptr ())) -> (IO (Ptr Element))))

foreign import ccall safe "gst_parse_bin_from_description"
  gst_parse_bin_from_description :: ((Ptr CChar) -> (CInt -> ((Ptr (Ptr ())) -> (IO (Ptr Element)))))