/*
 *  maplay.dll Wrapper
 *  $Id$
 */

using System;
using System.Text;
using System.Runtime.InteropServices;
using MaplayWrapper.Plugin;

namespace MaplayWrapper
{
    using MaplayHANDLE = IntPtr;
    using MaplayPlugin = IntPtr;

    public class Maplay : IDisposable
    {
        private MaplayHANDLE handle = IntPtr.Zero;
        private const int MAX_TAG_STR = 255;
        private const int MAX_PATH = 260;

        public Maplay()
        {
            this.handle = NativeMethods.MAP_Initialize();
            if ( this.handle == IntPtr.Zero) { throw new NullReferenceException("Maplay Initialize Error"); }
        }

        public void Dispose()
        {
            NativeMethods.MAP_Uninitialize(this.handle);
        }

        public bool Open(string filename)
        {
            return NativeMethods.MAP_Open(this.handle, filename);
        }

        public void Close()
        {
            NativeMethods.MAP_Close(this.handle);
        }

        public bool Play()
        {
            return NativeMethods.MAP_Play(this.handle);
        }

        public void Stop()
        {
            NativeMethods.MAP_Stop(this.handle);
        }

        public void Pause()
        {
            NativeMethods.MAP_Pause(this.handle);
        }

        public bool FastForward(int skip)
        {
            return NativeMethods.MAP_Ff(this.handle, skip);
        }

        public bool Rewind(int skip)
        {
            return NativeMethods.MAP_Rew(this.handle, skip);
        }

        public bool Seek(int time)
        {
            return NativeMethods.MAP_Seek(this.handle, time);
        }

        public int GetDuration()
        {
            return NativeMethods.MAP_GetDuration(this.handle);
        }

        public bool IsValidStream(string filename)
        {
            return NativeMethods.MAP_IsValidStream(this.handle, filename);
        }

        public void SetMessageWindow(IntPtr hwndMessage)
        {
            NativeMethods.MAP_SetMessageWindow(this.handle, hwndMessage);
        }

        public int GetCurrent()
        {
            return NativeMethods.MAP_GetCurrent(this.handle);
        }

        public void SetEqualizer(ref EQUALIZER eq)
        {
            NativeMethods.MAP_SetEqualizer(this.handle, ref eq);
        }

        public void GetEqualizer(ref EQUALIZER eq)
        {
            NativeMethods.MAP_GetEqualizer(this.handle, ref eq);
        }

        public void SetEffect(EffectType type, ref EFFECT value)
        {
            NativeMethods.MAP_SetEffect(this.handle, (int)type, ref value);
        }

        public void GetEffect(EffectType type, ref EFFECT value)
        {
            NativeMethods.MAP_GetEffect(this.handle, (int)type, ref value);
        }

        public void SetBassBoostLevel(int level)
        {
            NativeMethods.MAP_SetBassBoostLevel(this.handle, level);
        }

        public int GetBassBoostLevel()
        {
            return NativeMethods.MAP_GetBassBoostLevel(this.handle);
        }

        public void GetFileInfo(ref MAP_INFORMATION info)
        {
            NativeMethods.MAP_GetFileInfo(this.handle, ref info);
        }

        public void GetId3Tag(ref ID3Tag tag)
        {
            NativeMethods.MAP_GetId3Tag(this.handle, ref tag);
        }

        public bool SetId3Tag(ref ID3Tag tag)
        {
            return NativeMethods.MAP_SetId3Tag(this.handle, ref tag);
        }

        public bool GetId3TagFile(string filename, ref ID3Tag tag)
        {
            return NativeMethods.MAP_GetId3TagFile(this.handle, filename, ref tag);
        }

        public bool SetId3TagFile(string filename, ref ID3Tag tag)
        {
            return NativeMethods.MAP_SetId3TagFile(this.handle, filename, ref tag);
        }

        public string GetGenreString(int genre)
        {
            StringBuilder str = new StringBuilder(Maplay.MAX_TAG_STR);
            NativeMethods.MAP_GetGenreString(this.handle, genre, str);
            return str.ToString();
        }

        public MAP_STATUS GetStatus()
        {
            return NativeMethods.MAP_GetStatus(this.handle);
        }

        public bool SetOptions(ref MAP_OPTIONS options)
        {
            return NativeMethods.MAP_SetOptions(this.handle, ref options);
        }

        public void GetOptions(ref MAP_OPTIONS options)
        {
            NativeMethods.MAP_GetOptions(this.handle, ref options);
        }

        public bool GetScanPeek()
        {
            return NativeMethods.MAP_GetScanPeek(this.handle);
        }

        public void SetScanPeek(bool scan)
        {
            NativeMethods.MAP_SetScanPeek(this.handle, scan);
        }

        public void AudioDeviceClose()
        {
            NativeMethods.MAP_AudioDeviceClose(this.handle);
        }

        public void GetBufferInfo(ref uint TotalAudio, ref uint BufferedAudio, ref uint TotalStream, ref uint BufferedStream)
        {
            NativeMethods.MAP_GetBufferInfo(this.handle, ref TotalAudio, ref BufferedAudio, ref TotalStream, ref BufferedStream);
        }

        /** for streaming **/
        public bool OpenURL(string url)
        {
            return NativeMethods.MAP_OpenURL(this.handle, url);
        }

        public bool GetStreamInfo(ref string name, ref string genre, ref string url)
        {
            StringBuilder str1 = new StringBuilder(Maplay.MAX_PATH);
            StringBuilder str2 = new StringBuilder(Maplay.MAX_TAG_STR);
            StringBuilder str3 = new StringBuilder(Maplay.MAX_PATH);
            bool ret = NativeMethods.MAP_GetStreamInfo(this.handle, str1, str2, str3);
            name = str1.ToString();
            genre = str2.ToString();
            url = str3.ToString();

            return ret;
        }

        public bool GetStreamTitle(ref string title)
        {
            StringBuilder str = new StringBuilder();
            bool ret = NativeMethods.MAP_GetStreamTitle(this.handle, str);
            title = str.ToString();
            return ret;
        }

        public bool SetStreamingOptions(ref MAP_STREAMING_OPTIONS options)
        {
            return NativeMethods.MAP_SetStreamingOptions(this.handle, ref options);
        }

        public void GetStreamingOptions(ref MAP_STREAMING_OPTIONS options)
        {
            NativeMethods.MAP_GetStreamingOptions(this.handle, ref options);
        }

        public int GetStreamingBufferingCount()
        {
            return NativeMethods.MAP_GetStreamingBufferingCount(this.handle);
        }


        /** plug-in **/

        public int GetDecoderPlugInCount()
        {
            return NativeMethods.MAP_GetDecoderPlugInCount(this.handle);
        }

        public MAP_DEC_PLUGIN GetDecoderPlugin(int index)
        {
            MaplayPlugin ptr = NativeMethods.MAP_GetDecoderPlugIn(this.handle, index);
            //uint* ptrtest = (uint*)ptr.ToPointer();
            
            //return NativeMethods.MAP_GetDecoderPlugIn(this.handle, index);
            return new MAP_DEC_PLUGIN(ptr);
        }


        public class MAP_DEC_PLUGIN
        {

            readonly private MaplayPlugin plugin;

            readonly public uint dwVersion;
            readonly public uint dwChar;
            readonly public uint dwUser;

            public MAP_DEC_PLUGIN(MaplayPlugin plugin)
            {
                if (plugin == IntPtr.Zero)
                {
                    throw new NullReferenceException();
                }

                _MAP_DEC_PLUGIN _plugin = (_MAP_DEC_PLUGIN)System.Runtime.InteropServices.Marshal.PtrToStructure(plugin, typeof(_MAP_DEC_PLUGIN));

                this.plugin = plugin;
                this.dwVersion = _plugin.dwVersion;
                this.dwChar = _plugin.dwChar;
                this.dwUser = _plugin.dwUser;
            }

            public void Init()
            {
                NativeMethods.MAP_PlugIn_Init(this.plugin);
            }

            public void Quit()
            {
                NativeMethods.MAP_PlugIn_Quit(this.plugin);
            }

            public uint GetFunc()
            {
                return NativeMethods.MAP_PlugIn_GetFunc(this.plugin);
            }

            public bool GetPluginName(out string name)
            {
                StringBuilder strb = new StringBuilder(Maplay.MAX_TAG_STR);
                bool ret = NativeMethods.MAP_PlugIn_GetPluginName(this.plugin, strb);
                name = strb.ToString();
                return ret;
            }

            public bool SetEqualizer(ref MAP_PLUGIN_EQ eq)
            {
                return NativeMethods.MAP_PlugIn_SetEqualizer(this.plugin, ref eq);
            }

            public void ShowConfigDlg(IntPtr hwndParent)
            {
                NativeMethods.MAP_PlugIn_ShowConfigDlg(this.plugin, hwndParent);
            }


            //for file
            public bool GetFileExtCount()
            {
                return NativeMethods.MAP_PlugIn_GetFileExtCount(this.plugin);
            }

            public bool GetFileExt(int nIndex, out string pszExt, out string pszExtDesc)
            {
                StringBuilder str1 = new StringBuilder(Maplay.MAX_PATH);
                StringBuilder str2 = new StringBuilder(Maplay.MAX_PATH);

                bool ret = NativeMethods.MAP_PlugIn_GetFileExt(this.plugin, nIndex, str1, str2);
                pszExt = str1.ToString();
                pszExtDesc = str2.ToString();

                return ret;
            }

            public bool IsValidFile(string pszFile)
            {
                return NativeMethods.MAP_PlugIn_IsValidFile(this.plugin, pszFile);
            }

            public bool OpenFile(MaplayPlugin pPlugin, string pszFile, ref MAP_PLUGIN_FILE_INFO te)
            {
                return NativeMethods.MAP_PlugIn_OpenFile(pPlugin, pszFile, ref te);
            }

            public int SeekFile(int lTime)
            {
                return NativeMethods.MAP_PlugIn_SeekFile(this.plugin, lTime);
            }

            public bool StartDecodeFile()
            {
                return NativeMethods.MAP_PlugIn_StartDecodeFile(this.plugin);
            }

            public int DecodeFile(ref MaplayWrapper.Plugin.WAVEHDR pHdr)
            {
                return NativeMethods.MAP_PlugIn_DecodeFile(this.plugin, ref pHdr);
            }

            public void StopDecodeFile()
            {
                NativeMethods.MAP_PlugIn_StopDecodeFile(this.plugin);
            }

            public void CloseFile()
            {
                NativeMethods.MAP_PlugIn_CloseFile(this.plugin);
            }

            public bool GetTag(ref MaplayWrapper.Plugin.MAP_PLUGIN_FILETAG pTag)
            {
                return NativeMethods.MAP_PlugIn_GetTag(this.plugin, ref pTag);
            }

            public bool GetFileTag(string filename, ref MAP_PLUGIN_FILETAG pTag)
            {
                return NativeMethods.MAP_PlugIn_GetFileTag(this.plugin, filename, ref pTag);
            }

            public bool OpenStreaming(ref byte pbBuf, uint cbBuf, ref MAP_PLUGIN_STREMING_INFO pInfo)
            {
                return NativeMethods.MAP_PlugIn_OpenStreaming(this.plugin, ref pbBuf, cbBuf, ref pInfo);
            }

            public int DecodeStreaming(ref byte pbInBuf, uint cbInBuf, ref uint pcbInUsed, ref MaplayWrapper.Plugin.WAVEHDR pHdr)
            {
                return NativeMethods.MAP_PlugIn_DecodeStreaming(this.plugin, ref  pbInBuf, cbInBuf, ref  pcbInUsed, ref pHdr);
            }

            public void CloseStreaming()
            {
                NativeMethods.MAP_PlugIn_CloseStreaming(this.plugin);
            }


        }

        /** P/Invoke **/
        private static class NativeMethods
        {
            /// Return Type: HANDLE->void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_Initialize")]
            public static extern System.IntPtr MAP_Initialize();


            /// Return Type: void
            ///hLib: HANDLE->void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_Uninitialize")]
            public static extern void MAP_Uninitialize(MaplayHANDLE hLib);


            /// Return Type: BOOL->int
            ///hLib: HANDLE->void*
            ///pszFile: LPCTSTR->LPCWSTR->WCHAR*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_Open")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_Open(MaplayHANDLE hLib, [System.Runtime.InteropServices.InAttribute()] [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] string pszFile);


            /// Return Type: void
            ///hLib: HANDLE->void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_Close")]
            public static extern void MAP_Close(MaplayHANDLE hLib);


            /// Return Type: BOOL->int
            ///hLib: HANDLE->void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_Play")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_Play(MaplayHANDLE hLib);


            /// Return Type: void
            ///hLib: HANDLE->void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_Stop")]
            public static extern void MAP_Stop(MaplayHANDLE hLib);


            /// Return Type: void
            ///hLib: HANDLE->void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_Pause")]
            public static extern void MAP_Pause(MaplayHANDLE hLib);


            /// Return Type: BOOL->int
            ///hLib: HANDLE->void*
            ///lSkip: int
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_Ff")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_Ff(MaplayHANDLE hLib, int lSkip);


            /// Return Type: BOOL->int
            ///hLib: HANDLE->void*
            ///lSkip: int
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_Rew")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_Rew(MaplayHANDLE hLib, int lSkip);


            /// Return Type: BOOL->int
            ///hLib: HANDLE->void*
            ///lTime: int
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_Seek")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_Seek(MaplayHANDLE hLib, int lTime);


            /// Return Type: int
            ///hLib: HANDLE->void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetDuration")]
            public static extern int MAP_GetDuration(MaplayHANDLE hLib);


            /// Return Type: BOOL->int
            ///hLib: HANDLE->void*
            ///pszFile: LPCTSTR->LPCWSTR->WCHAR*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_IsValidStream")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_IsValidStream(MaplayHANDLE hLib, [System.Runtime.InteropServices.InAttribute()] [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] string pszFile);


            /// Return Type: void
            ///hLib: HANDLE->void*
            ///hwndMessage: HWND->HWND__*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_SetMessageWindow")]
            public static extern void MAP_SetMessageWindow(MaplayHANDLE hLib, System.IntPtr hwndMessage);


            /// Return Type: int (ms)
            ///hLib: HANDLE->void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetCurrent")]
            public static extern int MAP_GetCurrent(MaplayHANDLE hLib);


            /// Return Type: void
            ///hLib: HANDLE->void*
            ///value: EQUALIZER*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_SetEqualizer")]
            public static extern void MAP_SetEqualizer(MaplayHANDLE hLib, ref EQUALIZER value);


            /// Return Type: void
            ///hLib: HANDLE->void*
            ///value: EQUALIZER*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetEqualizer")]
            public static extern void MAP_GetEqualizer(MaplayHANDLE hLib, ref EQUALIZER value);


            /// Return Type: void
            ///hLib: HANDLE->void*
            ///nEffect: int
            ///value: EFFECT*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_SetEffect")]
            public static extern void MAP_SetEffect(MaplayHANDLE hLib, int nEffect, ref EFFECT value);


            /// Return Type: void
            ///hLib: HANDLE->void*
            ///nEffect: int
            ///value: EFFECT*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetEffect")]
            public static extern void MAP_GetEffect(MaplayHANDLE hLib, int nEffect, ref EFFECT value);


            /// Return Type: void
            ///hLib: HANDLE->void*
            ///nLevel: int
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_SetBassBoostLevel")]
            public static extern void MAP_SetBassBoostLevel(MaplayHANDLE hLib, int nLevel);


            /// Return Type: int
            ///hLib: HANDLE->void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetBassBoostLevel")]
            public static extern int MAP_GetBassBoostLevel(MaplayHANDLE hLib);


            /// Return Type: void
            ///hLib: HANDLE->void*
            ///pInfo: MAP_INFORMATION*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetFileInfo")]
            public static extern void MAP_GetFileInfo(MaplayHANDLE hLib, ref MAP_INFORMATION pInfo);


            /// Return Type: BOOL->int
            ///hLib: HANDLE->void*
            ///pTag: ID3TAGV1*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetId3Tag")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_GetId3Tag(MaplayHANDLE hLib, ref ID3Tag pTag);


            /// Return Type: BOOL->int
            ///hLib: HANDLE->void*
            ///pTag: ID3TAGV1*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_SetId3Tag")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_SetId3Tag(MaplayHANDLE hLib, ref ID3Tag pTag);


            /// Return Type: BOOL->int
            ///hLib: HANDLE->void*
            ///pszFile: LPCTSTR->LPCWSTR->WCHAR*
            ///pTag: ID3TAGV1*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetId3TagFile")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_GetId3TagFile(MaplayHANDLE hLib, [System.Runtime.InteropServices.InAttribute()] [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] string pszFile, ref ID3Tag pTag);


            /// Return Type: BOOL->int
            ///hLib: HANDLE->void*
            ///pszFile: LPCTSTR->LPCWSTR->WCHAR*
            ///pTag: ID3TAGV1*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_SetId3TagFile")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_SetId3TagFile(MaplayHANDLE hLib, [System.Runtime.InteropServices.InAttribute()] [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] string pszFile, ref ID3Tag pTag);


            /// Return Type: void
            ///hLib: HANDLE->void*
            ///nGenre: int
            ///pszGenre: LPTSTR->LPWSTR->WCHAR*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetGenreString")]
            public static extern void MAP_GetGenreString(MaplayHANDLE hLib, int nGenre, [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] System.Text.StringBuilder pszGenre);


            /// Return Type: MAP_STATUS
            ///hLib: HANDLE->void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetStatus")]
            public static extern MAP_STATUS MAP_GetStatus(MaplayHANDLE hLib);


            /// Return Type: BOOL->int
            ///hLib: HANDLE->void*
            ///pOptions: MAP_OPTIONS*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_SetOptions")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_SetOptions(MaplayHANDLE hLib, ref MAP_OPTIONS pOptions);


            /// Return Type: void
            ///hLib: HANDLE->void*
            ///pOptions: MAP_OPTIONS*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetOptions")]
            public static extern void MAP_GetOptions(MaplayHANDLE hLib, ref MAP_OPTIONS pOptions);


            /// Return Type: BOOL->int
            ///hLib: HANDLE->void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetScanPeek")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_GetScanPeek(MaplayHANDLE hLib);


            /// Return Type: void
            ///hLib: HANDLE->void*
            ///fScan: BOOL->int
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_SetScanPeek")]
            public static extern void MAP_SetScanPeek(MaplayHANDLE hLib, [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)] bool fScan);


            /// Return Type: void
            ///hLib: HANDLE->void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_AudioDeviceClose")]
            public static extern void MAP_AudioDeviceClose(MaplayHANDLE hLib);


            /// Return Type: void
            ///hLib: HANDLE->void*
            ///pcbTotalAudio: DWORD*
            ///pcbBufferedAudio: DWORD*
            ///pcbTotalStream: DWORD*
            ///pcbBufferedStream: DWORD*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetBufferInfo")]
            public static extern void MAP_GetBufferInfo(MaplayHANDLE hLib, ref uint pcbTotalAudio, ref uint pcbBufferedAudio, ref uint pcbTotalStream, ref uint pcbBufferedStream);



            /** for streaming **/

            /// Return Type: BOOL->int
            ///hLib: HANDLE->void*
            ///pszURL: LPCTSTR->LPCWSTR->WCHAR*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_OpenURL")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_OpenURL(MaplayHANDLE hLib, [System.Runtime.InteropServices.InAttribute()] [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] string pszURL);


            /// Return Type: BOOL->int
            ///hLib: HANDLE->void*
            ///pszName: LPTSTR->LPWSTR->WCHAR*
            ///pszGenre: LPTSTR->LPWSTR->WCHAR*
            ///pszURL: LPTSTR->LPWSTR->WCHAR*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetStreamInfo")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_GetStreamInfo(MaplayHANDLE hLib, [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] System.Text.StringBuilder pszName, [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] System.Text.StringBuilder pszGenre, [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] System.Text.StringBuilder pszURL);


            /// Return Type: BOOL->int
            ///hLib: HANDLE->void*
            ///pszTitle: LPTSTR->LPWSTR->WCHAR*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetStreamTitle")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_GetStreamTitle(MaplayHANDLE hLib, [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] System.Text.StringBuilder pszTitle);


            /// Return Type: BOOL->int
            ///hLib: HANDLE->void*
            ///pOptions: MAP_STREAMING_OPTIONS*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_SetStreamingOptions")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_SetStreamingOptions(MaplayHANDLE hLib, ref MAP_STREAMING_OPTIONS pOptions);


            /// Return Type: void
            ///hLib: HANDLE->void*
            ///pOptions: MAP_STREAMING_OPTIONS*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetStreamingOptions")]
            public static extern void MAP_GetStreamingOptions(MaplayHANDLE hLib, ref MAP_STREAMING_OPTIONS pOptions);


            /// Return Type: int
            ///hLib: HANDLE->void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetStreamingBufferingCount")]
            public static extern int MAP_GetStreamingBufferingCount(MaplayHANDLE hLib);


            /** plug-in **/

            /// Return Type: int
            ///hLib: HANDLE->void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetDecoderPlugInCount")]
            public static extern int MAP_GetDecoderPlugInCount(MaplayHANDLE hLib);

            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_GetDecoderPlugIn")]
            //[return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Struct)]
            public static extern IntPtr MAP_GetDecoderPlugIn(MaplayHANDLE hLib, int nIndex);



            /*** plug-in callback wrapper ***/

            /// Return Type: void
            ///pPlugin: void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_Init")]
            public static extern void MAP_PlugIn_Init(MaplayPlugin pPlugin);


            /// Return Type: void
            ///pPlugin: void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_Quit")]
            public static extern void MAP_PlugIn_Quit(MaplayPlugin pPlugin);


            /// Return Type: DWORD->unsigned int
            ///pPlugin: void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_GetFunc")]
            public static extern uint MAP_PlugIn_GetFunc(MaplayPlugin pPlugin);


            /// Return Type: BOOL->int
            ///pPlugin: void*
            ///pszName: LPTSTR->LPWSTR->WCHAR*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_GetPluginName")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_PlugIn_GetPluginName(MaplayPlugin pPlugin, [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] System.Text.StringBuilder pszName);

            ///// MAP_PlugIn_SetEqualizer
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_SetEqualizer")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_PlugIn_SetEqualizer(MaplayPlugin pPlugin, ref MaplayWrapper.Plugin.MAP_PLUGIN_EQ pER);


            /// Return Type: void
            ///pPlugin: void*
            ///hwndParent: HWND->HWND__*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_ShowConfigDlg")]
            public static extern void MAP_PlugIn_ShowConfigDlg(MaplayPlugin pPlugin, System.IntPtr hwndParent);


            // for file

            /// Return Type: BOOL->int
            ///pPlugin: void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_GetFileExtCount")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_PlugIn_GetFileExtCount(MaplayPlugin pPlugin);


            /// Return Type: BOOL->int
            ///pPlugin: void*
            ///nIndex: int
            ///pszExt: LPTSTR->LPWSTR->WCHAR*
            ///pszExtDesc: LPTSTR->LPWSTR->WCHAR*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_GetFileExt")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_PlugIn_GetFileExt(MaplayPlugin pPlugin, int nIndex, [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] System.Text.StringBuilder pszExt, [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] System.Text.StringBuilder pszExtDesc);


            /// Return Type: BOOL->int
            ///pPlugin: void*
            ///pszFile: LPCTSTR->LPCWSTR->WCHAR*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_IsValidFile")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_PlugIn_IsValidFile(MaplayPlugin pPlugin, [System.Runtime.InteropServices.InAttribute()] [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] string pszFile);

            ///// MAP_PlugIn_OpenFile
            // MAPLIBEXPORT(BOOL) MAP_PlugIn_OpenFile(MAP_DEC_PLUGIN* pPlugin, LPCTSTR pszFile, MAP_PLUGIN_FILE_INFO* pInfo);
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_OpenFile")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_PlugIn_OpenFile(MaplayPlugin pPlugin, [System.Runtime.InteropServices.InAttribute()] [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] string pszFile,
                ref MaplayWrapper.Plugin.MAP_PLUGIN_FILE_INFO pInfo);

            /// Return Type: int
            ///pPlugin: void*
            ///lTime: int
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_SeekFile")]
            public static extern int MAP_PlugIn_SeekFile(MaplayPlugin pPlugin, int lTime);


            /// Return Type: BOOL->int
            ///pPlugin: void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_StartDecodeFile")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_PlugIn_StartDecodeFile(MaplayPlugin pPlugin);


            /// Return Type: int
            ///pPlugin: void*
            ///pHdr: WAVEHDR*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_DecodeFile")]
            public static extern int MAP_PlugIn_DecodeFile(MaplayPlugin pPlugin, ref MaplayWrapper.Plugin.WAVEHDR pHdr);


            /// Return Type: void
            ///pPlugin: void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_StopDecodeFile")]
            public static extern void MAP_PlugIn_StopDecodeFile(MaplayPlugin pPlugin);


            /// Return Type: void
            ///pPlugin: void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_CloseFile")]
            public static extern void MAP_PlugIn_CloseFile(MaplayPlugin pPlugin);


            /// Return Type: BOOL->int
            ///pPlugin: void*
            ///pTag: MAP_PLUGIN_FILETAG*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_GetTag")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_PlugIn_GetTag(MaplayPlugin pPlugin, ref MaplayWrapper.Plugin.MAP_PLUGIN_FILETAG pTag);


            /// Return Type: BOOL->int
            ///pPlugin: void*
            ///pszFile: LPCTSTR->LPCWSTR->WCHAR*
            ///pTag: MAP_PLUGIN_FILETAG*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_GetFileTag")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_PlugIn_GetFileTag(MaplayPlugin pPlugin,
                [System.Runtime.InteropServices.InAttribute()] [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)] string pszFile,
                ref MaplayWrapper.Plugin.MAP_PLUGIN_FILETAG pTag);



            //for streaming

            /// Return Type: BOOL->int
            ///pPlugin: void*
            ///pbBuf: LPBYTE->BYTE*
            ///cbBuf: DWORD->unsigned int
            ///pInfo: MAP_PLUGIN_STREMING_INFO
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_OpenStreaming")]
            [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
            public static extern bool MAP_PlugIn_OpenStreaming(MaplayPlugin pPlugin, ref byte pbBuf,
                uint cbBuf, ref MaplayWrapper.Plugin.MAP_PLUGIN_STREMING_INFO pInfo);

            /// Return Type: int
            ///pPlugin: void*
            ///pbInBuf: LPBYTE->BYTE*
            ///cbInBuf: DWORD->unsigned int
            ///pcbInUsed: DWORD*
            ///pHdr: WAVEHDR*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_DecodeStreaming")]
            public static extern int MAP_PlugIn_DecodeStreaming(MaplayPlugin pPlugin, ref byte pbInBuf, uint cbInBuf, ref uint pcbInUsed, ref MaplayWrapper.Plugin.WAVEHDR pHdr);


            /// Return Type: void
            ///pPlugin: void*
            [System.Runtime.InteropServices.DllImportAttribute("maplay.dll", EntryPoint = "MAP_PlugIn_CloseStreaming")]
            public static extern void MAP_PlugIn_CloseStreaming(MaplayPlugin pPlugin);


            
        }

    }

    [System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Sequential)]
    public struct EQUALIZER
    {
        /// BOOL->int
        [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
        public bool fEnable;
        public int preamp;
        /// int[10]
        [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.ByValArray, SizeConst = 10, ArraySubType = System.Runtime.InteropServices.UnmanagedType.I4)]
        public int[] data;
    }


    public enum EffectType : int { EFFECT_REVERB = 0, EFFECT_ECHO = 1, EFFECT_SURROUND = 2, EFFECT_3DCHORUS = 3 };

    [System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Sequential)]
    public struct EFFECT
    {
        /// BOOL->int
        [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
        public bool fEnable;
        public int nDelay;
        public int nRate;
    }

    [System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Sequential)]
    public struct MAP_INFORMATION
    {
        public int nVersion;
        public int nLayer;
        public int nChannels;
        public int nSamplingRate;
        public int nBitRate;
        public int nDuration;
    }

    [System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Sequential)]
    public struct MAP_OPTIONS
    {
        public int nThreadPriority;
        public int nOutputBufferLen;
        public int nOutputPrebuffer;
        /// BOOL->int
        [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
        public bool fScanMpegCompletely;
        /// BOOL->int
        [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
        public bool fFadeIn;
        /// BOOL->int
        [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
        public bool fSuppressZeroSamples;
        /// BOOL->int
        [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
        public bool fAlwaysOpenDevice;
    }



    [System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Sequential, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
    public struct MAP_STREAMING_OPTIONS
    {
        public int nBuf;
        public int nPreBuf;
        /// BOOL->int
        [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
        public bool fUseProxy;
        /// TCHAR[260]
        [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.ByValTStr, SizeConst = 260)]
        public string szProxy;
        /// TCHAR[260]
        [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.ByValTStr, SizeConst = 260)]
        public string szUserAgent;
    }


    [System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Sequential, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
    public struct ID3Tag
    {
        /// TCHAR[255]
        [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.ByValTStr, SizeConst = 255)]
        public string szTrack;
        /// TCHAR[255]
        [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.ByValTStr, SizeConst = 255)]
        public string szArtist;
        /// TCHAR[255]
        [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.ByValTStr, SizeConst = 255)]
        public string szAlbum;
        /// TCHAR[255]
        [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.ByValTStr, SizeConst = 255)]
        public string szComment;
        /// TCHAR[255]
        [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.ByValTStr, SizeConst = 255)]
        public string szGenre;
        public int nYear;
        public int nTrackNum;
    }

    public enum MAP_STATUS { MAP_STATUS_STOP, MAP_STATUS_PLAY, MAP_STATUS_PAUSE, MAP_STATUS_WAIT }
    public enum MAP_STREAMING_STATUS
    {
        MAP_STREAMING_DISABLED, MAP_STREAMING_DISCONNECTED, MAP_STREAMING_CONNECTING,
        MAP_STREAMING_BUFFERING, MAP_STREAMING_CONNECTED
    };
}