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
}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。*/}
}
}//----------------------------------------------------------------------------------------//以下是libvlc.dll导出函数
///
///创建一个libvlc实例,它是引用计数的///
///
///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]private static extern IntPtr libvlc_new(intargc, IntPtr argv);///
///释放libvlc实例///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]public static extern voidlibvlc_release(IntPtr libvlc_instance);///
///获取版本///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]public static externString libvlc_get_version();///
///从视频来源(例如Url)构建一个libvlc_meida///
///
///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]private static externIntPtr libvlc_media_new_location(IntPtr libvlc_instance, IntPtr path);///
///从本地文件路径构建一个libvlc_media///
///
///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]private static externIntPtr libvlc_media_new_path(IntPtr libvlc_instance, IntPtr path);///
///
///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]public static extern voidlibvlc_media_release(IntPtr libvlc_media_inst);///
///创建libvlc_media_player(播放核心)///
///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]public static externIntPtr libvlc_media_player_new(IntPtr libvlc_instance);///
///将视频(libvlc_media)绑定到播放器上///
///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]public static extern voidlibvlc_media_player_set_media(IntPtr libvlc_media_player, IntPtr libvlc_media);///
///设置图像输出的窗口///
///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]public static extern voidlibvlc_media_player_set_hwnd(IntPtr libvlc_mediaplayer, Int32 drawable);#region 播放控制
///
///播放///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]public static extern voidlibvlc_media_player_play(IntPtr libvlc_mediaplayer);///
///暂停///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]public static extern voidlibvlc_media_player_pause(IntPtr libvlc_mediaplayer);///
///停止///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]public static extern voidlibvlc_media_player_stop(IntPtr libvlc_mediaplayer);#endregion
///
///释放播放文件///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]public static extern voidlibvlc_media_player_release(IntPtr libvlc_mediaplayer);///
///解析视频资源的媒体信息(如时长等)///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]public static extern voidlibvlc_media_parse(IntPtr libvlc_media);///
///返回视频的时长(必须先调用libvlc_media_parse之后,该函数才会生效)///
///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]public static externInt64 libvlc_media_get_duration(IntPtr libvlc_media);#region 播放时间进度
///
///当前播放的时间进度///
///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]public static externInt64 libvlc_media_player_get_time(IntPtr libvlc_mediaplayer);///
///设置播放位置(拖动)///
///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]public static extern voidlibvlc_media_player_set_time(IntPtr libvlc_mediaplayer, Int64 time);#endregion
#region 音量
///
///获取音量///
///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]public static extern intlibvlc_audio_get_volume(IntPtr libvlc_media_player);///
///设置音量///
///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]public static extern void libvlc_audio_set_volume(IntPtr libvlc_media_player, intvolume);#endregion
///
///设置全屏///
///
///
[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[SuppressUnmanagedCodeSecurity]public static extern void libvlc_set_fullscreen(IntPtr libvlc_media_player, intisFullScreen);///
///获取播放状态。(Win10 不支持)///
///
///
//[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]//[SuppressUnmanagedCodeSecurity]//public static extern Int64 libvlc_media_player_get_state(IntPtr libvlc_mediaplayer);
}#endregion}
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