海思h264解码库

海思的dll，解码h264  解码后转出yuv12

dll自己百度下载  hi_h264dec.dll   hi_h264dec_w.dll

 

调用方法：

if (H264Dec.Hi264DecAU(_decHandle, pH264Data, frameLen, 0, ref _decodeFrame, 0) == 0)

 

pH264Data是h264帧的句柄，frameLen是h264帧的长度，_decodeFrame是解码后的yuv帧

 

海思H264解码库 hi_h264dec_w.dll 水印问题

 

 

#region 解码器相关变量声明
        /// <summary>
        /// 数据的句柄
        /// </summary>
        /// <summary>
        /// 这是解码器属性信息
        /// </summary>
        public H264Dec.hiH264_DEC_ATTR_S decAttr;
        /// <summary>
        /// 这是解码器输出图像信息
        /// </summary>
        public H264Dec.hiH264_DEC_FRAME_S _decodeFrame = new H264Dec.hiH264_DEC_FRAME_S();
        /// <summary>
        /// 解码器句柄
        /// </summary>
        public IntPtr _decHandle;
        static double[,] YUV2RGB_CONVERT_MATRIX = new double[3, 3] { { 1, 0, 1.4022 }, { 1, -0.3456, -0.7145 }, { 1, 1.771, 0 } };
        #endregion
 
#region 解码器相关初始化，一般在窗口load中进行初始化
            decAttr = new H264Dec.hiH264_DEC_ATTR_S();
            decAttr.uPictureFormat = 0;
            decAttr.uStreamInType = 0;
            decAttr.uPicWidthInMB = (uint)width;
            decAttr.uPicHeightInMB = (uint)height;
            decAttr.uBufNum = 8;
            decAttr.uWorkMode = 16;
            //创建、初始化解码器句柄
            _decHandle = H264Dec.Hi264DecCreate(ref decAttr);
            #endregion
 
using System;
using System.Runtime.InteropServices;
 
namespace FVD.Common
{
    public class H264Dec
    {
        public const int HI_SUCCESS = 0;
 
        public const int HI_FAILURE = -1;
 
        public const int HI_LITTLE_ENDIAN = 1234;
 
        public const int HI_BIG_ENDIAN = 4321;
 
        public const int HI_DECODER_SLEEP_TIME = 60000;
 
        public const int HI_H264DEC_OK = 0;
 
        public const int HI_H264DEC_NEED_MORE_BITS = -1;
 
        public const int HI_H264DEC_NO_PICTURE = -2;
 
        public const int HI_H264DEC_ERR_HANDLE = -3;
 
 
 
        [DllImport("hi_h264dec_w.dll", EntryPoint = "Hi264DecImageEnhance",CallingConvention = CallingConvention.Cdecl)]
        public static extern int Hi264DecImageEnhance(IntPtr hDec, refhiH264_DEC_FRAME_S pDecFrame, uint uEnhanceCoeff);
 
        [DllImport("hi_h264dec_w.dll", EntryPoint = "Hi264DecCreate", CallingConvention =CallingConvention.Cdecl)]
        public static extern IntPtr Hi264DecCreate(ref hiH264_DEC_ATTR_S pDecAttr);
 
        [DllImport("hi_h264dec_w.dll", EntryPoint = "Hi264DecDestroy", CallingConvention =CallingConvention.Cdecl)]
        public static extern void Hi264DecDestroy(IntPtr hDec);
 
 
        [DllImport("hi_h264dec_w.dll", EntryPoint = "Hi264DecGetInfo", CallingConvention =CallingConvention.Cdecl)]
        public static extern int Hi264DecGetInfo(ref hiH264_LIBINFO_S pLibInfo);
 
        /// <summary>
        /// 对输入的一段码流进行解码并按帧输出图像
        /// </summary>
        /// <param name="hDec">解码器句柄</param>
        /// <param name="pStream">码流起始地址</param>
        /// <param name="iStreamLen">码流长度</param>
        /// <param name="ullPTS">时间戳信息</param>
        /// <param name="pDecFrame">图像信息</param>
        /// <param name="uFlags">解码模式 0：正常解码；1、解码完毕并要求解码器输出残留图像</param>
        /// <returns></returns>
        [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);
 
        [DllImport("hi_h264dec_w.dll", EntryPoint = "Hi264DecAU", CallingConvention =CallingConvention.Cdecl)]
        public static extern int Hi264DecAU(IntPtr hDec, IntPtr pStream, uint iStreamLen,ulong ullPTS, ref hiH264_DEC_FRAME_S pDecFrame, uint uFlags);
        /// <summary>
        /// 解码器属性信息。
        /// </summary>
        [StructLayout(LayoutKind.Sequential)]
        public struct hiH264_DEC_ATTR_S
        {
            /// <summary>
            /// 解码器输出图像格式，目前解码库只支持YUV420图像格式
            /// </summary>
            public uint uPictureFormat;
            /// <summary>
            /// 输入码流格式 0x00: 目前解码库只支持以“00 00 01”为nalu分割符的流式H.264码流 
            /// </summary>
            public uint uStreamInType;
            /// <summary>
            /// 图像宽度
            /// </summary>
            public uint uPicWidthInMB;
            /// <summary>
            /// 图像高度
            /// </summary>
            public uint uPicHeightInMB;
            /// <summary>
            /// 参考帧数目
            /// </summary>
            public uint uBufNum;
            /// <summary>
            /// 解码器工作模式
            /// </summary>
            public uint uWorkMode;
            /// <summary>
            /// 用户私有数据
            /// </summary>
            public IntPtr pUserData;
            /// <summary>
            /// 保留字
            /// </summary>
            public uint uReserved;
 
        }
 
        /// <summary>
        /// 解码器输出图像信息数据结构
        /// </summary>
        [StructLayout(LayoutKind.Sequential)]
        public struct hiH264_DEC_FRAME_S
        {
            /// <summary>
            /// Y分量地址
            /// </summary>
            public IntPtr pY;
            /// <summary>
            /// U分量地址
            /// </summary>
            public IntPtr pU;
            /// <summary>
            /// V分量地址
            /// </summary>
            public IntPtr pV;
            /// <summary>
            /// 图像宽度(以像素为单位)
            /// </summary>
            public uint uWidth;
            /// <summary>
            /// 图像高度(以像素为单位)
            /// </summary>
            public uint uHeight;
            /// <summary>
            /// 输出Y分量的stride (以像素为单位)
            /// </summary>
            public uint uYStride;
            /// <summary>
            /// 输出UV分量的stride (以像素为单位)
            /// </summary>
            public uint uUVStride;
            /// <summary>
            /// 图像裁减信息:左边界裁减像素数
            /// </summary>
            public uint uCroppingLeftOffset;
            /// <summary>
            /// 图像裁减信息:右边界裁减像素数
            /// </summary>
            public uint uCroppingRightOffset;
            /// <summary>
            /// 图像裁减信息:上边界裁减像素数
            /// </summary>
            public uint uCroppingTopOffset;
            /// <summary>
            /// 图像裁减信息:下边界裁减像素数
            /// </summary>
            public uint uCroppingBottomOffset;
            /// <summary>
            /// 输出图像在dpb中的序号
            /// </summary>
            public uint uDpbIdx;
            /// <summary>
            /// 图像类型：0:帧; 1:顶场; 2:底场 */
            /// </summary>
            public uint uPicFlag;
            /// <summary>
            /// 图像类型：0:帧; 1:顶场; 2:底场 */
            /// </summary>
            public uint bError;
            /// <summary>
            /// 图像是否为IDR帧：0:非IDR帧;1:IDR帧
            /// </summary>
            public uint bIntra;
            /// <summary>
            /// 时间戳
            /// </summary>
            public ulong ullPTS;
            /// <summary>
            /// 图像信号
            /// </summary>
            public uint uPictureID;
            /// <summary>
            /// 保留字
            /// </summary>
            public uint uReserved;
            /// <summary>
            /// 指向用户私有数据
            /// </summary>
            public IntPtr pUserData;
 
        }
 
 
        /// <summary>
        /// 解码库版本、版权和能力集信息。
        /// </summary>
        [StructLayout(LayoutKind.Sequential)]
        public struct hiH264_LIBINFO_S
        {
            /// <summary>
            /// 主编号
            /// </summary>
            public uint uMajor;
            /// <summary>
            /// 次编号
            /// </summary>
            public uint uMinor;
            /// <summary>
            /// 发布编号
            /// </summary>
            public uint uRelease;
            /// <summary>
            /// 建构编号
            /// </summary>
            public uint uBuild;
            /// <summary>
            /// 版本信息
            /// </summary>
            [MarshalAs(UnmanagedType.LPStr)]
            public string sVersion;
            /// <summary>
            /// 版权信息
            /// </summary>
            [MarshalAs(UnmanagedType.LPStr)]
            public string sCopyRight;
            /// <summary>
            /// 解码库能力集
            /// </summary>
            public uint uFunctionSet;
            /// <summary>
            /// 支持的输出图像格式
            /// </summary>
            public uint uPictureFormat;
            /// <summary>
            /// 输入码流格式
            /// </summary>
            public uint uStreamInType;
            /// <summary>
            /// 最大图像宽度(以像素为单位)
            /// </summary>
            public uint uPicWidth;
            /// <summary>
            /// 最大图像高度(以像素为单位)
            /// </summary>
            public uint uPicHeight;
            /// <summary>
            /// 最大参考帧数目
            /// </summary>
            public uint uBufNum;
            /// <summary>
            /// 保留字
            /// </summary>
            public uint uReserved;
 
        }
 
        /// <summary>
        /// 用户私有数据信息。
        /// </summary>
        [StructLayout(LayoutKind.Sequential)]
        public struct hiH264_USERDATA_S
        {
            /// <summary>
            /// 用户数据类型
            /// </summary>
            public uint uUserDataType;
            /// <summary>
            /// 用户数据长度
            /// </summary>
            public uint uUserDataSize;
            /// <summary>
            /// 用户数据缓冲区
            /// </summary>
            public IntPtr pData;
            /// <summary>
            /// 指向下一段用户数据
            /// </summary>
            public IntPtr pNext;
        }
    }
}