vlc集成c#_c# winform vlcPlayer播放器

usingSystem;usingSystem.Runtime.InteropServices;usingSystem.Security;usingSystem.Text;namespaceVlcPlayer

{public classVlcPlayerBase

{privateIntPtr libvlc_instance_;privateIntPtr libvlc_media_player_;///

///视频时长///

private doubleduration_;///

///VLC 播放器。///

///

public VlcPlayerBase(stringpluginPath)

{//string pluginPath = Environment.CurrentDirectory + “\\vlc\\plugins\\”;//插件目录

string plugin_arg = “–plugin-path=” +pluginPath;string[] arguments = { “-I”, “dummy”, “–ignore-config”, “–no-video-title”, plugin_arg };

libvlc_instance_=LibVlcAPI.libvlc_new(arguments);

libvlc_media_player_= LibVlcAPI.libvlc_media_player_new(libvlc_instance_); //创建 libvlc_media_player 播放核心

}///

///设置播放容器///

/// 播放容器句柄

public void SetRenderWindow(intwndHandle)

{if (libvlc_instance_ != IntPtr.Zero && wndHandle != 0)

{

LibVlcAPI.libvlc_media_player_set_hwnd(libvlc_media_player_, wndHandle);//设置播放容器

}

}///

///播放指定媒体文件///

///

public void LoadFile(stringfilePath)

{

IntPtr libvlc_media= LibVlcAPI.libvlc_media_new_path(libvlc_instance_, filePath); //创建 libvlc_media_player 播放核心

if (libvlc_media !=IntPtr.Zero)

{

LibVlcAPI.libvlc_media_parse(libvlc_media);

duration_= LibVlcAPI.libvlc_media_get_duration(libvlc_media) / 1000.0; //获取视频时长

LibVlcAPI.libvlc_media_player_set_media(libvlc_media_player_, libvlc_media);//将视频绑定到播放器去

LibVlcAPI.libvlc_media_release(libvlc_media);//LibVlcAPI.libvlc_media_player_play(libvlc_media_player_);//播放

}

}///

///播放///

public voidPlay()

{if (libvlc_media_player_ !=IntPtr.Zero)

{

LibVlcAPI.libvlc_media_player_play(libvlc_media_player_);

}

}///

///暂停播放///

public voidPause()

{if (libvlc_media_player_ !=IntPtr.Zero)

{

LibVlcAPI.libvlc_media_player_pause(libvlc_media_player_);

}

}///

///停止播放///

public voidStop()

{if (libvlc_media_player_ !=IntPtr.Zero)

{

LibVlcAPI.libvlc_media_player_stop(libvlc_media_player_);

}

}public voidRelease()

{if (libvlc_media_player_ !=IntPtr.Zero)

{

LibVlcAPI.libvlc_media_release(libvlc_media_player_);

}

}///

///获取播放时间进度///

///

public doubleGetPlayTime()

{return LibVlcAPI.libvlc_media_player_get_time(libvlc_media_player_) / 1000.0;

}///

///设置播放时间///

///

public void SetPlayTime(doubleseekTime)

{

LibVlcAPI.libvlc_media_player_set_time(libvlc_media_player_, (Int64)(seekTime* 1000));

}///

///获取音量///

///

public intGetVolume()

{returnLibVlcAPI.libvlc_audio_get_volume(libvlc_media_player_);

}///

///设置音量///

///

public void SetVolume(intvolume)

{

LibVlcAPI.libvlc_audio_set_volume(libvlc_media_player_, volume);

}///

///设置是否全屏///

///

public void SetFullScreen(boolistrue)

{

LibVlcAPI.libvlc_set_fullscreen(libvlc_media_player_, istrue? 1 : 0);

}///

///视频时长///

///

public double Duration { get { returnduration_; } }///

///是否正在播放///

public boolIsPlaying

{get{if (Duration > 0 && (int)GetPlayTime() == (int)Duration) this.Stop(); //如果播放完，关闭视频

return (int)GetPlayTime() < (int)Duration /*播放时间进度小于视频时长*/

&& Duration > 0 /*播放时间进度大于0*/

&& GetPlayTime() > 0; /*视频时长大于0*/}

}///

///获取版本(VS2015 调试模式程序会直接崩掉)///

///

public string Version { get { returnLibVlcAPI.libvlc_get_version(); } }

}#region vlclib.dll

internal static classLibVlcAPI

{internal structPointerToArrayOfPointerHelper

{

[MarshalAs(UnmanagedType.ByValArray, SizeConst= 11)]publicIntPtr[] pointers;

}///

///传入播放参数///

///

public static IntPtr libvlc_new(string[] arguments)

{

PointerToArrayOfPointerHelper argv= newPointerToArrayOfPointerHelper();

argv.pointers= new IntPtr[11];for (int i = 0; i < arguments.Length; i++)

{

argv.pointers[i]= Marshal.StringToHGlobalAnsi(arguments[i]); //将托管 System.String 中的内容复制到非托管内存，并在复制时转换为 ANSI 格式。

}

IntPtr argvPtr=IntPtr.Zero;try{int size = Marshal.SizeOf(typeof(PointerToArrayOfPointerHelper)); //返回非托管类型的大小(以字节为单位)。

argvPtr = Marshal.AllocHGlobal(size); //从进程的非托管内存中分配内存。

Marshal.StructureToPtr(argv, argvPtr, false); //将数据从托管对象封送到非托管内存块。

return libvlc_new(arguments.Length, argvPtr); //创建一个libvlc实例，它是引用计数的

}finally{for (int i = 0; i < arguments.Length + 1; i++)

{if (argv.pointers[i] !=IntPtr.Zero)

{

Marshal.FreeHGlobal(argv.pointers[i]);//释放以前使用 System.Runtime.InteropServices.Marshal.AllocHGlobal(System.IntPtr) 从进程的非托管内存中分配的内存。

}

}if (argvPtr != IntPtr.Zero) { Marshal.FreeHGlobal(argvPtr);/*释放以前使用 System.Runtime.InteropServices.Marshal.AllocHGlobal(System.IntPtr) 从进程的非托管内存中分配的内存。*/}

}

}///

///从本地文件系统路径新建,其他参照上一条///

///

public static IntPtr libvlc_media_new_path(IntPtr libvlc_instance, stringpath)

{

IntPtr pMrl=IntPtr.Zero;try{byte[] bytes =Encoding.UTF8.GetBytes(path);

pMrl= Marshal.AllocHGlobal(bytes.Length + 1);

Marshal.Copy(bytes,0, pMrl, bytes.Length);

Marshal.WriteByte(pMrl, bytes.Length,0);return libvlc_media_new_path(libvlc_instance, pMrl); //从本地文件路径构建一个libvlc_media

}finally{if (pMrl != IntPtr.Zero) { Marshal.FreeHGlobal(pMrl);/*释放以前使用 System.Runtime.InteropServices.Marshal.AllocHGlobal(System.IntPtr) 从进程的非托管内存中分配的内存。*/}

}

}///

///使用一个给定的媒体资源路径来建立一个libvlc_media对象.参数psz_mrl为要读取的MRL(Media Resource Location).此函数返回新建的对象或NULL.///

///

public static IntPtr libvlc_media_new_location(IntPtr libvlc_instance, stringpath)

{

IntPtr pMrl=IntPtr.Zero;try{byte[] bytes =Encoding.UTF8.GetBytes(path);

pMrl= Marshal.AllocHGlobal(bytes.Length + 1);

Marshal.Copy(bytes,0, pMrl, bytes.Length);

Marshal.WriteByte(pMrl, bytes.Length,0);return libvlc_media_new_path(libvlc_instance, pMrl); //从本地文件路径构建一个libvlc_media

}

}//—————————————————————————————-//以下是libvlc.dll导出函数

///

///创建一个libvlc实例，它是引用计数的///

///