#region license

/*
DirectShowLib - Provide access to DirectShow interfaces via .NET
Copyright (C) 2006
http://sourceforge.net/projects/directshownet/

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 2.1 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 library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

#endregion

using System;
using System.Drawing;
using System.Runtime.InteropServices;

namespace DirectShowLib
{
    #region Declarations

#if ALLOW_UNTESTED_INTERFACES

    /// <summary>
    /// From AM_WST_STYLE
    /// </summary>
    public enum WSTStyle
    {
        None = 0,
        Invers
    }

    /// <summary>
    /// From AMVABUFFERINFO
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct AMVABufferInfo
    {
        public int                   dwTypeIndex;
        public int                   dwBufferIndex;
        public int                   dwDataOffset;
        public int                   dwDataSize;
    }

    /// <summary>
    /// From AMVAUncompDataInfo
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct AMVAUncompDataInfo
    {
        public int                   dwUncompWidth;
        public int                   dwUncompHeight;
        public DDPixelFormat           ddUncompPixelFormat;
    }

    /// <summary>
    /// From AMVAUncompBufferInfo
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct AMVAUncompBufferInfo
    {
        public int                   dwMinNumSurfaces;
        public int                   dwMaxNumSurfaces;
        public DDPixelFormat           ddUncompPixelFormat;
    }

    /// <summary>
    /// From AMVAInternalMemInfo
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct AMVAInternalMemInfo
    {
        public int                   dwScratchMemAlloc;
    }

    /// <summary>
    /// From DDSCAPS2
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct DDSCaps2
    {
        public int       dwCaps;
        public int       dwCaps2;
        public int       dwCaps3;
        public int       dwCaps4;
    }

    /// <summary>
    /// From AMVACompBufferInfo
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct AMVACompBufferInfo
    {
        public int                   dwNumCompBuffers;
        public int                   dwWidthToCreate;
        public int                   dwHeightToCreate;
        public int                   dwBytesToAllocate;
        public DDSCaps2                ddCompCaps;
        public DDPixelFormat           ddPixelFormat;
    }

    /// <summary>
    /// From AMVABeginFrameInfo
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct AMVABeginFrameInfo
    {
        public int                dwDestSurfaceIndex;
        public IntPtr               pInputData;  // LPVOID
        public int                dwSizeInputData;
        public IntPtr               pOutputData;  // LPVOID
        public int                dwSizeOutputData;
    }

    /// <summary>
    /// From AMVAEndFrameInfo
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct AMVAEndFrameInfo
    {
        public int                   dwSizeMiscData;
        public IntPtr                  pMiscData; // LPVOID
    }

#endif

    /// <summary>
    /// From AM_WST_LEVEL
    /// </summary>
    public enum WSTLevel
    {
        Level1_5 = 0
    }

    /// <summary>
    /// From AM_WST_SERVICE
    /// </summary>
    public enum WSTService
    {
        None = 0,
        Text,
        IDS,
        Invalid
    }

    /// <summary>
    /// From AM_WST_STATE
    /// </summary>
    public enum WSTState
    {
        Off = 0,
        On
    }

    /// <summary>
    /// From AM_WST_DRAWBGMODE
    /// </summary>
    public enum WSTDrawBGMode
    {
        Opaque,
        Transparent
    }

    /// <summary>
    /// Not from DirectShow
    /// </summary>
    public enum MPEGAudioDivider
    {
        CDAudio = 1,
        FMRadio = 2,
        AMRadio = 4
    }

    /// <summary>
    /// From AM_MPEG_AUDIO_DUAL_* defines
    /// </summary>
    public enum MPEGAudioDual
    {
        Merge,
        Left,
        Right
    }

    /// <summary>
    /// Not from DirectShow
    /// </summary>
    public enum MPEGAudioAccuracy
    {
        Best = 0x0000,
        High = 0x4000,
        Full = 0x8000
    }

    /// <summary>
    /// Not from DirectShow
    /// </summary>
    public enum MPEGAudioChannels
    {
        Mono = 1,
        Stereo = 2
    }

    /// <summary>
    /// From AM_WST_PAGE
    /// </summary>
    [StructLayout(LayoutKind.Sequential)]
    public struct WSTPage
    {
        public int dwPageNr ;
        public int dwSubPageNr ;
        public IntPtr pucPageData; // BYTE *
    }

    /// <summary>
    /// From ACM_MPEG_LAYER* defines
    /// </summary>
    public enum AcmMpegHeadLayer : short
    {
        Layer1 = 1,
        Layer2,
        Layer3
    }

    /// <summary>
    /// From ACM_MPEG_* defines
    /// </summary>
    public enum AcmMpegHeadMode : short
    {
        Stereo = 1,
        JointStereo,
        DualChannel,
        SingleChannel
    }

    /// <summary>
    /// From ACM_MPEG_* defines
    /// </summary>
    [Flags]
    public enum AcmMpegHeadFlags : short
    {
        None = 0x0,
        PrivateBit = 0x1,
        Copyright = 0x2,
        OriginalHome = 0x4,
        ProtectionBit = 0x8,
        IDMpeg1 = 0x10
    }

    /// <summary>
    /// From MPEG1WAVEFORMAT
    /// </summary>
    [StructLayout(LayoutKind.Sequential, Pack=2)]
    public class MPEG1WaveFormat
    {
        public WaveFormatEx wfx;
        public AcmMpegHeadLayer fwHeadLayer;
        public int dwHeadBitrate;
        public AcmMpegHeadMode fwHeadMode;
        public short fwHeadModeExt;
        public short wHeadEmphasis;
        public AcmMpegHeadFlags fwHeadFlags;
        public int dwPTSLow;
        public int dwPTSHigh;
    }

    #endregion

    #region Interfaces

#if ALLOW_UNTESTED_INTERFACES

    [ComImport,
    Guid("c47a3420-005c-11d2-9038-00a0c9697298"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IAMParse
    {
        [PreserveSig]
        int GetParseTime(out long prtCurrent);

        [PreserveSig]
        int SetParseTime(long rtCurrent);

        [PreserveSig]
        int Flush();
    }

    [ComImport,
    Guid("a8809222-07bb-48ea-951c-33158100625b"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IGetCapabilitiesKey
    {
        [PreserveSig]
        int GetCapabilitiesKey( [Out] out IntPtr pHKey ); // HKEY
    }

    [ComImport,
    Guid("256A6A21-FBAD-11d1-82BF-00A0C9696C8F"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IAMVideoAcceleratorNotify
    {
        [PreserveSig]
        int GetUncompSurfacesInfo([In, MarshalAs(UnmanagedType.LPStruct)] Guid pGuid,
            [Out] out AMVAUncompBufferInfo pUncompBufferInfo);

        [PreserveSig]
        int SetUncompSurfacesInfo([In] int dwActualUncompSurfacesAllocated);

        [PreserveSig]
        int GetCreateVideoAcceleratorData([In, MarshalAs(UnmanagedType.LPStruct)] Guid pGuid,
            [Out] out int pdwSizeMiscData,
            [Out] IntPtr ppMiscData); // LPVOID
    }

    [ComImport,
    Guid("256A6A22-FBAD-11d1-82BF-00A0C9696C8F"),
    InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IAMVideoAccelerator