引擎介绍

APlayer 媒体播放引擎是迅雷公司从 2009 年开始开发的通用音视频媒体文件播放内核。

迅雷看看播放器和迅雷影音就是使用 APlayer 作为播放内核。

本质上APlayer播放引擎是一个ActiveX控件，可以被本地其他外部程序嵌入调用，也可以直接被网页嵌入，类似于(Adobe Flash Player)。APlayer不包含界面，但另一个依赖于APlayer的ActiveX控件APlayerUI可以提供丰富的界面元素(播放控制条，Flash广告等)，APlayerUI 也被包含在 APlayerSDK 中。

官方地址：迅雷APlayer媒体播放引擎-首页

重点

本文章与目前网上的均不一致，请注意查看，完全可以做到绿色版。

本次开发使用的是APlayerCaller.dll插件  由原来的COM的方式改为用插件的方式。完美支持VS2022以上版本。

上部分代码

1.引入DLL

//创建视频窗口[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_Create", SetLastError = true)]public static extern int APlayer_Create(int hParent,int x,int y,int nWidth,int nHeight,IntPtr OnMessage,IntPtr OnStateChanged,IntPtr OnOpenSuccess,IntPtr OnSeekCompleted,IntPtr OnBuffer,IntPtr OnVideoSizeChanged,IntPtr ondownloadcodec,IntPtr OnEvent);//打开 指定 地址的视频[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_OpenW", CharSet = CharSet.Auto, SetLastError = true)]public static extern bool APlayer_OpenW(int hand, string url);//开始播放[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_Play", SetLastError = true)]public static extern bool APlayer_Play(int hand);//设置Logo[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_SetCustomLogo", SetLastError = true)]public static extern bool APlayer_SetCustomLogo(int hand, int logo);//设置参数[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_SetConfigA", SetLastError = true)]public static extern int APlayer_SetConfigA(int hand, int configid, string val);//获取版本号[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_GetVersion", SetLastError = true)]public static extern string APlayer_GetVersion(int hand);//获取视频宽度[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_GetVideoWidth", SetLastError = true)]public static extern int APlayer_GetVideoWidth(int hand);//获取视频高度[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_GetVideoHeight", SetLastError = true)]public static extern int APlayer_GetVideoHeight(int hand);//销毁[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_Destroy", SetLastError = true)]public static extern bool APlayer_Destroy(int hand);//关闭[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_Close", SetLastError = true)]public static extern bool APlayer_Close(int hand);//暂停[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_Pause", SetLastError = true)]public static extern bool APlayer_Pause(int hand);//获取播放器的当前状态，返回整数型状态代码。0：准备就绪，1：正在打开，2：正在暂停，3：暂停中，4：正在开始播放，5：播放中，6：正在开始关闭。[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_GetState", SetLastError = true)]public static extern int APlayer_GetState(int hand);//获取时长[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_GetDuration", SetLastError = true)]public static extern int APlayer_GetDuration(int hand);//获取当前位置[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_GetPosition", SetLastError = true)]public static extern int APlayer_GetPosition(int hand);//设置当前位置[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_SetPosition", SetLastError = true)]public static extern int APlayer_SetPosition(int hand, int position);//获取声音大小[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_GetVolume", SetLastError = true)]public static extern int APlayer_GetVolume(int hand);//设置当前的播放音量，取值范围为 0 - 1000，100时就是正常的满音量，取值1000为十倍音量。[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_SetVolume", SetLastError = true)]public static extern int APlayer_SetVolume(int hand, int volume);//判断是否处于设置播放进度过程中。当调用[设置当前播放位置]后，播放器执行设置操作，这个过程需要花费一定的时间，所以提供了这个方法来供调用者查询当前是否处于设置过程中。0：不在设置过程中，1：在设置过程中。[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_IsSeeking", SetLastError = true)]public static extern int APlayer_IsSeeking(int hand);//用于获取APlayer播放器在播放网络文件时的数据缓冲进度。-1：不在缓冲过程中，0-99：缓冲进度。[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_GetBufferProgress", SetLastError = true)]public static extern int APlayer_GetBufferProgress(int hand);//获取设置[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_GetConfigA", SetLastError = true)]public static extern int APlayer_GetConfigA(int hand, int configid);//获取窗口句柄[DllImportAttribute("APlayerCaller.dll", EntryPoint = "APlayer_GetWindow", SetLastError = true)]public static extern int APlayer_GetWindow(int hand);//载入一个位图、图标或指针 执行成功则返回对象的一个句柄；零表示失败[DllImportAttribute("APlayerCaller.dll", EntryPoint = "LoadImage", SetLastError = true)]public static extern int LoadImage(int hand, //要从其中载入图象的DLL或应用程序模块或实例句柄。零表示装载一幅固有图象string flag, //欲载入图象的名字。如指定了hInst，就用这个参数指定资源或资源的标志符（标志符是一个长整数）。如hInst为空，而且已指定了LR_LOADFROMFILE，那么这个参数代表文件名（位图、图标或指针文件）。如果是个Long型值，这个参数就代表固有位图、图标或指针的编号int type, //下述常数之一，指定了欲载入的图象类型：IMAGE_BITMAP， IMAGE_CURSOR， IMAGE_ICONint width, // 要求的图象宽度和高度。图象会根据情况自动伸缩。如设为零，表示用图象的默认大小int height, //同上int zh //下述常数的任意组合，它们都在api32.txt文件中得到了定义：;LR_DEFAULTCOLOR：以常规方式载入图象;LR_LOADREALSIZE：不对图象进行缩放处理。忽略n1和n2的设置;LR_CREATEDIBSECTION：如果指定了IMAGE_BITMAP，就返回DIBSection的句柄，而不是位图的句柄;LR_DEFAULTSIZE：如果n1和n2为零，就使用由系统定义的图象默认大小，而不是图象本身定义的大小;LR_LOADFROMFILE：如hInst为零，lpsz就代表要载入适当类型的一个文件的名字，仅适用于Win95;LR_LOADMAP3DCOLORS：将图象中的深灰、灰、以及浅灰像素都替换成COLOR_3DSHADOW，COLOR_3DFACE以及COLOR_3DLIGHT的当前设置;LR_LOADTRANSPARENT：与图象中第一个像素相符的所有像素都由系统替换;LR_MONOCHROME：将图象转换成单色;LR_SHARED：将图象作为一个共享资源载入。在NT 4.0中装载固有资源时要用到这个设置;);

2.初始化

private bool initVideo(){IntPtr POnMessage = Marshal.GetFunctionPointerForDelegate(new fun3(OnMessage));IntPtr POnStateChanged = Marshal.GetFunctionPointerForDelegate(new fun2(OnStateChanged));IntPtr POnOpenSuccess = Marshal.GetFunctionPointerForDelegate(new fun0(OnOpenSucceeded));IntPtr POnSeekCompleted = Marshal.GetFunctionPointerForDelegate(new fun1(OnSeekCompleted));IntPtr POnBuffer = Marshal.GetFunctionPointerForDelegate(new fun1(OnBuffer));IntPtr POnVideoSizeChanged = Marshal.GetFunctionPointerForDelegate(new fun0(OnVideoSizeChanged));IntPtr POnDownloadCodec = Marshal.GetFunctionPointerForDelegate(new funstr(OnDownloadCodec));IntPtr POnEvent = Marshal.GetFunctionPointerForDelegate(new fun2(OnEvent));if (HAplayer == 0){//创建代码HAplayer = APlayer_Create(panel1.Handle.ToInt32(), 0, 0, panel1.Width, panel1.Height, POnMessage, POnStateChanged, POnOpenSuccess, POnSeekCompleted, POnBuffer, POnVideoSizeChanged, POnDownloadCodec, POnEvent);//int HAplayer = APlayer_Create(panel1.Handle.ToInt32(), 0, 0, 200, 200, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);//MessageBox.Show("句柄是:" + HAplayer.ToString());//APlayer_SetCustomLogo(HAplayer, -1);if (HAplayer > 0){VolumeTrackBar.Value = APlayer_GetVolume(HAplayer);return true;}}return false;}

3.消息回调

void OnMessage(int l1, int l2, int l3){//方法体Debug.WriteLine(l1 + "=OnMessage=" + l2);}void OnStateChanged(int l1, int l2){Debug.WriteLine(l1 + "=OnStateChanged=" + l2);if (l2 == 6){PlayButton.Text = "播放";}}void OnOpenSucceeded(){Debug.WriteLine("=OnOpenSucceeded=");}void OnSeekCompleted(int l1){Debug.WriteLine(l1 + "=OnSeekCompleted=");}void OnBuffer(int l1){Debug.WriteLine(l1 + "=OnBuffer=");}void OnVideoSizeChanged(){Debug.WriteLine("=OnVideoSizeChanged=");}void OnEvent(int nEventCode, int nEventParam){Debug.WriteLine(nEventCode + "=OnEvent=" + nEventParam);}void OnDownloadCodec(string l1){Debug.WriteLine(l1 + "==OnDownloadCodec");}

效果展示