289 lines
12 KiB
C#
289 lines
12 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Security;
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using System.Text;
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namespace dccdc.Selfhelp
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{
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class VlcPlayer
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{
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private IntPtr libvlc_instance_;
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private IntPtr libvlc_media_player_;
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private double duration_;
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public double ShiChang
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{
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get { return duration_; }
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}
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public VlcPlayer(string pluginPath)
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{
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string plugin_arg = "--plugin-path=" + pluginPath;
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string[] arguments = { "-I", "dummy", "--ignore-config", "--no-video-title", plugin_arg };
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libvlc_instance_ = LibVlcAPI.libvlc_new(arguments);
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libvlc_media_player_ = LibVlcAPI.libvlc_media_player_new(libvlc_instance_);
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}
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public void SetRenderWindow(int wndHandle)
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{
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if (libvlc_instance_ != IntPtr.Zero && wndHandle != 0)
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{
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LibVlcAPI.libvlc_media_player_set_hwnd(libvlc_media_player_, wndHandle);
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}
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}
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public void PlayFile(string filePath)
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{
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IntPtr libvlc_media = LibVlcAPI.libvlc_media_new_path(libvlc_instance_, filePath);
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if (libvlc_media != IntPtr.Zero)
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{
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LibVlcAPI.libvlc_media_parse(libvlc_media);
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duration_ = LibVlcAPI.libvlc_media_get_duration(libvlc_media) / 1000.0;
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LibVlcAPI.libvlc_media_player_set_media(libvlc_media_player_, libvlc_media);
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LibVlcAPI.libvlc_media_release(libvlc_media);
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LibVlcAPI.libvlc_media_player_play(libvlc_media_player_);
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}
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}
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public void Pause()
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{
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if (libvlc_media_player_ != IntPtr.Zero)
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{
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LibVlcAPI.libvlc_media_player_pause(libvlc_media_player_);
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}
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}
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public void Play()
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{
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if (libvlc_media_player_ != IntPtr.Zero)
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{
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LibVlcAPI.libvlc_media_player_play(libvlc_media_player_);
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// LibVlcAPI.libvlc_media_player_pause(libvlc_media_player_);
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}
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}
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public void Stop()
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{
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if (libvlc_media_player_ != IntPtr.Zero)
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{
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LibVlcAPI.libvlc_media_player_stop(libvlc_media_player_);
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}
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}
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// public void FastForward()
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// {
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// if (libvlc_media_player_ != IntPtr.Zero)
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// {
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// LibVlcAPI.libvlc_media_player_fastforward(libvlc_media_player_);
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// }
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// }
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public double GetPlayTime()
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{
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return LibVlcAPI.libvlc_media_player_get_time(libvlc_media_player_) / 1000.0;
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}
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public void SetPlayTime(double seekTime)
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{
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LibVlcAPI.libvlc_media_player_set_time(libvlc_media_player_, (Int64)(seekTime * 1000));
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}
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public int GetVolume()
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{
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return LibVlcAPI.libvlc_audio_get_volume(libvlc_media_player_);
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}
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public void SetVolume(int volume)
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{
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LibVlcAPI.libvlc_audio_set_volume(libvlc_media_player_, volume);
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}
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public void SetFullScreen(bool istrue)
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{
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LibVlcAPI.libvlc_set_fullscreen(libvlc_media_player_, istrue ? 1 : 0);
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}
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public double Duration()
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{
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return duration_;
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}
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public string Version()
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{
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return LibVlcAPI.libvlc_get_version();
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}
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}
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internal static class LibVlcAPI
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{
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internal struct PointerToArrayOfPointerHelper
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{
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 11)]
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public IntPtr[] pointers;
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}
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public static IntPtr libvlc_new(string[] arguments)
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{
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PointerToArrayOfPointerHelper argv = new PointerToArrayOfPointerHelper();
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argv.pointers = new IntPtr[11];
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for (int i = 0; i < arguments.Length; i++)
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{
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argv.pointers[i] = Marshal.StringToHGlobalAnsi(arguments[i]);
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}
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IntPtr argvPtr = IntPtr.Zero;
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try
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{
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int size = Marshal.SizeOf(typeof(PointerToArrayOfPointerHelper));
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argvPtr = Marshal.AllocHGlobal(size);
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Marshal.StructureToPtr(argv, argvPtr, false);
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return libvlc_new(arguments.Length, argvPtr);
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}
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finally
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{
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for (int i = 0; i < arguments.Length + 1; i++)
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{
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if (argv.pointers[i] != IntPtr.Zero)
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{
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Marshal.FreeHGlobal(argv.pointers[i]);
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}
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}
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if (argvPtr != IntPtr.Zero)
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{
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Marshal.FreeHGlobal(argvPtr);
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}
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}
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}
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public static IntPtr libvlc_media_new_path(IntPtr libvlc_instance, string path)
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{
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IntPtr pMrl = IntPtr.Zero;
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try
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{
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byte[] bytes = Encoding.UTF8.GetBytes(path);
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pMrl = Marshal.AllocHGlobal(bytes.Length + 1);
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Marshal.Copy(bytes, 0, pMrl, bytes.Length);
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Marshal.WriteByte(pMrl, bytes.Length, 0);
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return libvlc_media_new_path(libvlc_instance, pMrl);
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}
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finally
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{
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if (pMrl != IntPtr.Zero)
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{
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Marshal.FreeHGlobal(pMrl);
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}
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}
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}
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public static IntPtr libvlc_media_new_location(IntPtr libvlc_instance, string path)
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{
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IntPtr pMrl = IntPtr.Zero;
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try
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{
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byte[] bytes = Encoding.UTF8.GetBytes(path);
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pMrl = Marshal.AllocHGlobal(bytes.Length + 1);
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Marshal.Copy(bytes, 0, pMrl, bytes.Length);
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Marshal.WriteByte(pMrl, bytes.Length, 0);
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return libvlc_media_new_path(libvlc_instance, pMrl);
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}
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finally
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{
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if (pMrl != IntPtr.Zero)
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{
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Marshal.FreeHGlobal(pMrl);
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}
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}
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}
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// ----------------------------------------------------------------------------------------
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// 以下是libvlc.dll导出函数
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// 创建一个libvlc实例，它是引用计数的
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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private static extern IntPtr libvlc_new(int argc, IntPtr argv);
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// 释放libvlc实例
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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public static extern void libvlc_release(IntPtr libvlc_instance);
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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public static extern String libvlc_get_version();
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// 从视频来源(例如Url)构建一个libvlc_meida
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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private static extern IntPtr libvlc_media_new_location(IntPtr libvlc_instance, IntPtr path);
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// 从本地文件路径构建一个libvlc_media
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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private static extern IntPtr libvlc_media_new_path(IntPtr libvlc_instance, IntPtr path);
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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public static extern void libvlc_media_release(IntPtr libvlc_media_inst);
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// 创建libvlc_media_player(播放核心)
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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public static extern IntPtr libvlc_media_player_new(IntPtr libvlc_instance);
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// 将视频(libvlc_media)绑定到播放器上
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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public static extern void libvlc_media_player_set_media(IntPtr libvlc_media_player, IntPtr libvlc_media);
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// 设置图像输出的窗口
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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public static extern void libvlc_media_player_set_hwnd(IntPtr libvlc_mediaplayer, Int32 drawable);
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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public static extern void libvlc_media_player_play(IntPtr libvlc_mediaplayer);
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/// <summary>
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///
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/// </summary>
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/// <param name="libvlc_mediaplayer"></param>
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//[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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//[SuppressUnmanagedCodeSecurity]
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// public static extern void libvlc_media_player_fastforward(IntPtr libvlc_mediaplayer);
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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public static extern void libvlc_media_player_pause(IntPtr libvlc_mediaplayer);
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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public static extern void libvlc_media_player_stop(IntPtr libvlc_mediaplayer);
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// 解析视频资源的媒体信息(如时长等)
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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public static extern void libvlc_media_parse(IntPtr libvlc_media);
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// 返回视频的时长(必须先调用libvlc_media_parse之后，该函数才会生效)
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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public static extern Int64 libvlc_media_get_duration(IntPtr libvlc_media);
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// 当前播放的时间
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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public static extern Int64 libvlc_media_player_get_time(IntPtr libvlc_mediaplayer);
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// 设置播放位置(拖动)
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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public static extern void libvlc_media_player_set_time(IntPtr libvlc_mediaplayer, Int64 time);
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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public static extern void libvlc_media_player_release(IntPtr libvlc_mediaplayer);
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// 获取和设置音量
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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public static extern int libvlc_audio_get_volume(IntPtr libvlc_media_player);
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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public static extern void libvlc_audio_set_volume(IntPtr libvlc_media_player, int volume);
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// 设置全屏
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[DllImport("libvlc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
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[SuppressUnmanagedCodeSecurity]
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public static extern void libvlc_set_fullscreen(IntPtr libvlc_media_player, int isFullScreen);
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}
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}
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