录屏.net代码
internal class ScreenRecordHelper
{
#region Fields
private const int DEFAULT_FRAME_RATE = 15;
private int screenWidth;
private int screenHight;
private int bitRate;
private int frameRate;
internal bool isRecording;
private int framesCount;
private string fileName;
private Stopwatch stopWatch;
private Rectangle screenArea;
private VideoFileWriter videoWriter;
private ScreenCaptureStream videoStreamer;
private FolderBrowserDialog folderBrowser;
private VideoCodec videoCodec;
#endregion
public ScreenRecordHelper()
{
screenWidth = SystemInformation.VirtualScreen.Width;//Screen.PrimaryScreen.Bounds.Width;
screenHight = SystemInformation.VirtualScreen.Height; // Screen.PrimaryScreen.Bounds.Height;不论注释的或没注释的发现在win10系统上是不能全屏录制的,
只能部分,win8上没试过,由于我装的是win10系统,没有win7,就先这样写了,至于win10系统有自己的
一套录制方法,还挺牛逼,我们可以使用win+G键来开始,还可以自己来创建录制软件(只适用于win8.x
及其以上),msdn提供了文章:
https://msdn.microsoft.com/zh-cn/library/windows/apps/xaml/dn642093.aspx
frameRate = DEFAULT_FRAME_RATE;
isRecording = false;
framesCount = default(int);
stopWatch = new Stopwatch();
screenArea = Rectangle.Empty;
videoWriter = new VideoFileWriter();
folderBrowser = new FolderBrowserDialog();
videoCodec = (VideoCodec)Enum.Parse(typeof(VideoCodec), ScreenRecord.codec);
bitRate = ScreenRecord.bitRate;
}
/// <summary>
/// 开始录屏
/// </summary>
internal void StartRecording()
{
try
{
InitializeRecordingParameters();
videoStreamer = new ScreenCaptureStream(screenArea);
videoStreamer.NewFrame += new NewFrameEventHandler(VideoStreamer_NewFrame);
videoStreamer.Start();
stopWatch.Start();
}
catch (Exception ex)
{
throw ex;
}
}
internal void StopRecord()
{
isRecording = false;
}
private void VideoStreamer_NewFrame(object sender, NewFrameEventArgs eventArgs)
{
if (isRecording)
{
framesCount++;
videoWriter.WriteVideoFrame(eventArgs.Frame);
}
else
{
stopWatch.Reset();
videoStreamer.Stop();
videoWriter.Close();
videoWriter.Dispose();
}
}
private void InitializeRecordingParameters()
{
if (!isRecording)
{
isRecording = true;
SetScreenArea();
FileName = string.Format(@"{0}{1}-{2}.avi", "ScreenDraw", "bySTAR", new Random().Next(100) + DateTime.Now.ToString("yyyy-MM-dd_HH_mm"));
videoWriter.Open(FileName, screenWidth, screenHight, frameRate, videoCodec, bitRate);
}
}
private string FileName
{
get { return this.fileName; }
set
{
if (string.IsNullOrEmpty(value))
{
throw new ArgumentNullException
("fileName", "File name can not be empty or null");
}
this.fileName = value;
}
}
private void SetScreenArea()
{
foreach (Screen screen in Screen.AllScreens)
{
this.screenArea = Rectangle.Union(this.screenArea, screen.Bounds);
}
if (this.screenArea == Rectangle.Empty)
{
throw new InvalidOperationException("Screan area can not be set");
}
}
}
由于一些不得不做的事(哈,有时间再聊),所以就不得不写一个关于录屏的软件了,如此无力的开篇,开始吧。
在网上搜了很多关于录屏的源码,发现都使不了,剧情的需要很难满足。于是突然想到了github上的一个录屏的软件,就引用过来了,稍加修改就用上了(核心代码基本没动)Bo.wang(讨论)刚查了下,github上没了?!
剧情需要:开机启动, 自动检测对应软件启动情况并进行录屏,当然最主要的就是录屏这个技术了。
经过几番整弄算是能用了。
这里贴上核心代码
需要配置如下方这三个
internal static string savePath = Directory.GetCurrentDirectory(); internal static string codec = "MSMPEG4v2"; internal static int bitRate = 2000000; 解码器可以设置"MPEG4", "WMV1", "WMV2", "MSMPEG4v2", "MSMPEG4v3", "H263P", "FLV1", "MPEG2", "Raw"
比特率就按自己想要的设定了,可以google下,我这里设定为200000,也有300000,或者低点,测试下就知道了
还有一个上方写的DEFAULT_FRAME_RATE,帧率,录制的帧率,我用的是15帧,感觉太低了手速不够
相关dll需要引入:
avcodec-53.dll
avdevice-53.dll
avfilter-2.dll
avformat-53.dll
avutil-51.dll
和最主要的有,AForge.dll,AForge.Video.dll,Aforge.Video.FFMPEG.dll
其中创建的时候需要使用x86的的生成,这里给个在github上的那哥们的code,http://pan.baidu.com/s/1o81s0xs
可能不太深入,只是需求想做这样的软件,后边由于比较忙就没怎么深入,只是分享下困扰了我一段时间的录屏,希望大家多多包涵Bo.wang(讨论)
我在刚开始的时候也遇到了一些小问题,有些解决了,有些则是替代了