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//初始化
// 这是解码器输出图像信息
hiH264_DEC_FRAME_S _decodeFrame = new hiH264_DEC_FRAME_S();
// 这是解码器属性信息
hiH264_DEC_ATTR_S decAttr = new hiH264_DEC_ATTR_S();
decAttr.uPictureFormat = 0;
decAttr.uStreamInType = 0;
/* 解码器最大图像宽高, D1图像(1280x720) */
decAttr.uPicWidthInMB = (uint)width / 16;
decAttr.uPicHeightInMB = (uint)height / 16;
/* 解码器最大参考帧数: 16 */
decAttr.uBufNum = 16;
/* bit0 = 1: 标准输出模式; bit0 = 0: 快速输出模式 */
/* bit4 = 1: 启动内部Deinterlace; bit4 = 0: 不启动内部Deinterlace */
decAttr.uWorkMode = 0x10;
//创建、初始化解码器句柄
IntPtr _decHandle = H264Dec.Hi264DecCreate(ref decAttr);

//解码结束
bool isEnd = false;
int bufferLen = 0x1000;
IntPtr pData = Marshal.AllocHGlobal(0xFFFF);
//码流段
byte[] buf = new byte[0xFFFF];
int dataLenth = 0;
while (!isEnd && !isDispose)
{
    VideoFrameData frameDataTemp;
    byte tempByte;
    int j = 0;
    bool getData = dataFrameQueue2.TryDequeue(out frameDataTemp);
    if (getData)
    {
        Array.Copy(frameDataTemp.Data, 0, buf, dataLenth, frameDataTemp.Data.Length);
        dataLenth += frameDataTemp.Data.Length;
        //GC.Collect();
        //GC.SuppressFinalize(this);
    }
    //获取一段码流,积累一定缓存量再解
    if (dataLenth >= bufferLen || isStop == 1)
    {
        Marshal.Copy(buf, 0, pData, dataLenth);
        if (firstDecTimeBh)
        {
            firstDecTimeBh = false;
            Console.WriteLine("解码前时间：" + DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss:fff"));
        }
        int result = -1;
        result = H264Dec.Hi264DecFrame(_decHandle, pData, (UInt32)dataLenth, 0, ref _decodeFrame, (uint)isStop);
        dataLenth = 0;
        //IntPtr _decHandle2 = H264Dec.Hi264DecCreate(ref decAttr);
        //hiH264_DEC_FRAME_S _decodeFrame2 = new hiH264_DEC_FRAME_S();
        //IntPtr pData2 = Marshal.AllocHGlobal(frameDataTemp.DataLenth);
        //Marshal.Copy(frameDataTemp.Data, 0, pData2, frameDataTemp.DataLenth);
        //int result2 = 0;
        //result2 = H264Dec.Hi264DecFrame(_decHandle2, pData2, (UInt32)frameDataTemp.DataLenth, 0, ref _decodeFrame2, (uint)isStop);
        //if (result2 >= 0)
        //    Console.WriteLine("发现帧");
        while (HI_H264DEC_NEED_MORE_BITS != result)
        {
            if (firstDecTimeBf)
            {
                firstDecTimeBf = false;
                Console.WriteLine("解码后时间：" + DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss:fff"));
            }
            if (HI_H264DEC_NO_PICTURE == result)
            {
                isEnd = true;
                break;
            }
            if (HI_H264DEC_OK == result)/* 输出一帧图像 */
            {
                //获取yuv
                UInt32 tempWid = _decodeFrame.uWidth;
                UInt32 tempHeig = _decodeFrame.uHeight;
                UInt32 yStride = _decodeFrame.uYStride;
                UInt32 uvStride = _decodeFrame.uUVStride;
                byte[] y = new byte[tempHeig * yStride];
                byte[] u = new byte[tempHeig * uvStride / 2];
                byte[] v = new byte[tempHeig * uvStride / 2];
                Marshal.Copy(_decodeFrame.pY, y, 0, y.Length);
                Marshal.Copy(_decodeFrame.pU, u, 0, u.Length);
                Marshal.Copy(_decodeFrame.pV, v, 0, v.Length);
                _decodeFrame.uDpbIdx = (uint)frameDataTemp.FrameId;
                MyProcessEvent2(_decodeFrame);
                //转为yv12格式
                //byte[] yuvBytes = new byte[y.Length + u.Length + v.Length];
                //Array.Copy(y, 0, yuvBytes, 0, y.Length);
                //Array.Copy(v, 0, yuvBytes, y.Length , v.Length);
                //Array.Copy(u, 0, yuvBytes, y.Length + v.Length, u .Length);
                //更新显示
                //this.d3dSource.Render(_decodeFrame.pY, _decodeFrame.pU, _decodeFrame.pV);
            }
            /* 继续解码剩余H.264码流 */
            result = H264Dec.Hi264DecFrame(_decHandle, IntPtr.Zero, 0, 0, ref _decodeFrame, (uint)isStop);
        }
        System.Threading.Thread.Sleep(1);
    }

}
/* 销毁解码器 */
H264Dec.Hi264DecDestroy(_decHandle);

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 [DllImport("hi_h264dec_w.dll", EntryPoint = "Hi264DecFrame", CallingConvention = CallingConvention.Cdecl)]
        public static extern int Hi264DecFrame(IntPtr hDec, IntPtr pStream, uint iStreamLen, ulong ullPTS, ref hiH264_DEC_FRAME_S pDecFrame, uint uFlags);