using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;

namespace VWMS.CommonClass
{
    class VideoOperate
    {
        #region  視頻采集卡中的枚舉

        public enum DISPLAYTRANSTYPE
        {
            NOT_DISPLAY = 0,
            PCI_VIEDOMEMORY = 1,
            PCI_MEMORY_VIDEOMEMORY = 2
        }

        //視頻預(yù)覽和視頻捕捉數(shù)據(jù)流格式，目前版本只支持UUY2格式
        public enum COLORFORMAT
        {
            RGB32 = 0x0,
            RGB24 = 0x1,
            RGB16 = 0x2,
            RGB15 = 0x3,
            YUY2 = 0x4,
            BTYUV = 0x5,
            Y8 = 0x6,
            RGB8 = 0x7,
            PL422 = 0x8,
            PL411 = 0x9,
            YUV12 = 0xA,
            YUV9 = 0xB,
            RAW = 0xE
        }

        /*視頻預(yù)覽及視頻捕獲的顯示屬性，其中：
            BRIGHTNESS為亮度，value范圍：0~255，最佳：80
            CONTRAST為對(duì)比度，value范圍：-128~127，最佳：0x44
            SATURATION為飽和度，value范圍：-128~127，最佳：0x40
            HUE為色度，value范圍：-128~127，最佳：0x0
                只有當(dāng)COLORDEVICETYPE等于COLOR_DECODER時(shí)才有效
            SHARPNESS為銳度，value范圍：-8~7，最佳：0x0
                只有當(dāng)COLORDEVICETYPE等于COLOR_DECODER時(shí)才有效
        */
        public enum COLORCONTROL
        {
            BRIGHTNESS = 0,
            CONTRAST = 1,
            SATURATION = 2,
            HUE = 3,
            SHARPNESS = 4
        }

        /*顯示設(shè)備的顯示屬性，其中：
            COLOR_DECODER為解碼器的顯示屬性，它會(huì)影響視頻預(yù)覽和視頻捕獲的顯示屬性
            COLOR_PREVIEW為視頻預(yù)覽的顯示屬性
            COLOR_CAPTURE為視頻捕獲的顯示屬性
        */
        public enum COLORDEVICETYPE
        {
            COLOR_DECODER = 0,
            COLOR_PREVIEW = 1,
            COLOR_CAPTURE = 2,
        }

        /*音視頻捕獲方式，其中：
            CAP_NULL_STREAM 捕獲無(wú)效
            CAP_ORIGIN_STREAM 捕獲為原始流回調(diào)
            CAP_MPEG4_STREAM 捕獲為MPEG4
        */
        public enum CAPMODEL
        {
            CAP_NULL_STREAM = 0,
            CAP_ORIGIN_STREAM = 1,
            CAP_MPEG4_STREAM = 2,
        }

        /*音視頻MPEG4捕獲方式，只有CAPMODEL等于CAP_MPEG4_STREAM時(shí)有效，其中：
           MPEG4_AVIFILE_ONLY 存為MPEG4文件
           MPEG4_CALLBACK_ONLY MPEG數(shù)據(jù)回調(diào)
           MPEG4_AVIFILE_CALLBACK 存為MPEG文件并回調(diào)
       */
        public enum MP4MODEL
        {
            MPEG4_AVIFILE_ONLY = 0,
            MPEG4_CALLBACK_ONLY = 1,
            MPEG4_AVIFILE_CALLBACK = 2,
        }

        /*MPEG4_XVID壓縮模式，其中：
           XVID_CBR_MODE 
           XVID_VBR_MODE 
       */
        public enum COMPRESSMODE
        {
            XVID_CBR_MODE = 0,
            XVID_VBR_MODE = 1,
        }

        /*視頻源的輸入頻率，其中：
           FIELD_FREQ_50HZ 50HZ,絕對(duì)多數(shù)為PAL制式
           FIELD_FREQ_60HZ 60HZ,絕對(duì)多數(shù)為NTSC制式
           FIELD_FREQ_0HZ 無(wú)信號(hào)
       */
        public enum eFieldFrequency
        {
            FIELD_FREQ_50HZ = 0,
            FIELD_FREQ_60HZ = 1,
            FIELD_FREQ_0HZ = 2,
        }

        /*電平狀態(tài)，其中：
           HIGH_VOLTAGE 高電平
           LOW_VOLTAGE 低電平
       */
        public enum eVOLTAGELEVEL
        {
            HIGH_VOLTAGE = 0,
            LOW_VOLTAGE = 1,
        }

        #endregion

        #region  視頻采集卡中的API函數(shù)

        //初始化系統(tǒng)資源
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCAInitSdk")]
        public extern static bool VCAInitSdk(IntPtr hWndMain, DISPLAYTRANSTYPE eDispTransType, bool bLnitAuDev);

        //釋放系統(tǒng)資源
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCAUnInitSdk")]
        public extern static void VCAUnInitSdk();

        //打開指定卡號(hào)的設(shè)備，分配相應(yīng)系統(tǒng)資源
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCAOpenDevice")]
        public extern static bool VCAOpenDevice(Int32 dwCard, IntPtr hPreviewWnd);

        //關(guān)閉指定卡號(hào)的設(shè)備，釋放相應(yīng)系統(tǒng)資源
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCACloseDevice")]
        public extern static bool VCACloseDevice(Int32 dwCard);

        //返回系統(tǒng)當(dāng)中卡號(hào)數(shù)量，即為SAA7134硬件數(shù)目，為0時(shí)表示沒(méi)有設(shè)備存在
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCAGetDevNum")]
        public extern static int VCAGetDevNum();

        //開始視頻預(yù)覽
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCAStartVideoPreview")]
        public extern static bool VCAStartVideoPreview(Int32 dwCard);

        //停止視頻預(yù)覽
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCAStopVideoPreview")]
        public extern static bool VCAStopVideoPreview(Int32 dwCard);

        //更新視頻預(yù)覽
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCAUpdateVideoPreview")]
        public extern static bool VCAUpdateVideoPreview(Int32 dwCard, IntPtr hPreviewWnd);

        //更新overlay窗口，當(dāng)overlay窗口句柄改變或尺寸、位置改變時(shí)調(diào)用，overlay窗口就是包含
        //多路顯示小窗口的大窗口，overlay窗口必須有一個(gè)，多路顯示小窗口必須包含在其內(nèi)部
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCAUpdateOverlayWnd")]
        public extern static bool VCAUpdateOverlayWnd(IntPtr hOverlayWnd);

        //保存快照為JPEG文件
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCASaveAsJpegFile")]
        public extern static bool VCASaveAsJpegFile(Int32 dwCard, string lpFileName, Int32 dwQuality);

        //保存快照為BMP文件
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCASaveAsBmpFile")]
        public extern static bool VCASaveAsBmpFile(Int32 dwCard, string lpFileName);

        //開始視頻捕獲
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCAStartVideoCapture")]
        public extern static bool VCAStartVideoCapture(Int32 dwCard, CAPMODEL enCapMode, MP4MODEL enMp4Mode, string lpFileName);

        //停止視頻捕獲
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCAStopVideoCapture")]
        public extern static bool VCAStopVideoCapture(Int32 dwCard);

        //設(shè)置視頻捕獲尺寸，dwWidth和dwHeight最好為16的倍數(shù)，否則，動(dòng)態(tài)檢測(cè)為16*16的一個(gè)檢測(cè)小塊，檢測(cè)將會(huì)不準(zhǔn)確
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCASetVidCapSize")]
        public extern static bool VCASetVidCapSize(Int32 dwCard, Int32 dwWidth, Int32 dwHeight);

        //得到視頻捕獲尺寸
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCAGetVidCapSize")]
        public extern static bool VCAGetVidCapSize(Int32 dwCard, Int32 dwWidth, Int32 dwHeight);

        //設(shè)置視頻捕獲頻率
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCASetVidCapFrameRate")]
        public extern static bool VCASetVidCapFrameRate(Int32 dwCard, Int32 dwFrameRate, bool bFrameRateReduction);

        //設(shè)置MPEG壓縮的位率
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCASetBitRate")]
        public extern static bool VCASetBitRate(Int32 dwCard, Int32 dwBitRate);

        //設(shè)置MPEG壓縮的關(guān)鍵幀間隔，必須大于等于幀率
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCASetKeyFrmInterval")]
        public extern static bool VCASetKeyFrmInterval(Int32 dwCard, Int32 dwKeyFrmInterval);

        //設(shè)置MPEG4_XVID壓縮的質(zhì)量
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCASetXVIDQuality")]
        public extern static bool VCASetXVIDQuality(Int32 dwCard, Int32 dwQuantizer, Int32 dwMotionPrecision);

        //設(shè)置MPEG4_XVID壓縮的模式
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCASetXVIDCompressMode")]
        public extern static bool VCASetXVIDCompressMode(Int32 dwCard, COMPRESSMODE enCompessMode);

        //設(shè)置視頻顏色屬性，它將影響視頻預(yù)覽和視頻捕獲的顯示屬性
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCASetVidDeviceColor")]
        public extern static bool VCASetVidDeviceColor(Int32 dwCard, COLORCONTROL enCtlType, Int32 dwValue);

        //得到視頻源輸入頻率，即可得到視頻源輸入制式
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCAGetVidFieldFrq")]
        public extern static bool VCAGetVidFieldFrq(Int32 dwCard, eFieldFrequency eVidSourceFieldRate);

        //初始化視頻設(shè)備，當(dāng)視頻不顯示，只需視頻錄像獲音頻處理時(shí)，獲通過(guò)VCAInitSdk()函數(shù)已經(jīng)初始化完成，可以不初始化
        [DllImport("Sa7134Capture.dll", EntryPoint = "VCAInitVidDev")]
        public extern static bool VCAInitVidDev();

        #endregion
    }
}