80 lines
3.2 KiB
C#
80 lines
3.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Windows;
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namespace DM_Weight.util
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{
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public class FFmpegHelper
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{
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private Process _ffmpegProcess;
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private string _ffmpegPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "ffmpeg.exe");
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//是否停止录屏标志
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public bool stopFlag = false;
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public void StartRecording(string outputPath, int frameRate = 30)
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{
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//int width = (int)SystemParameters.PrimaryScreenWidth;
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//int height = (int)SystemParameters.PrimaryScreenHeight;
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//string args = $"-f gdigrab -framerate 30 -i desktop -c:v libx264 -crf 25 -preset ultrafast -t {segmentDuration} {segmentPath}";
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int segmentDuration = 1800; // 每段半小时
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string args = $"-f gdigrab -framerate {frameRate} " +
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$"-i desktop -preset ultrafast -t {segmentDuration} {outputPath}";
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_ffmpegProcess = new Process
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{
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StartInfo = new ProcessStartInfo
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{
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FileName = _ffmpegPath,
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Arguments = args,
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UseShellExecute = false,
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CreateNoWindow = true,
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RedirectStandardInput = true
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}
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};
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_ffmpegProcess.Start();
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ThreadPool.QueueUserWorkItem(CheckFFmpegProcess); // 检查FFmpeg进程是否完成，以开始下一个录制段
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}
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public void StopRecording()
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{
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_ffmpegProcess?.StandardInput.WriteLine("q");
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_ffmpegProcess?.WaitForExit(1000);
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_ffmpegProcess?.Close();
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}
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private void CheckFFmpegProcess(object state)
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{
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try
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{
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if (!stopFlag)
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{
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_ffmpegProcess.WaitForExit(); // 等待FFmpeg进程结束
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if (!_ffmpegProcess.HasExited) return; // 如果进程未结束，则不继续
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// 开始下一个录制段，如果需要循环录制，可以取消注释下面的代码行并适当调整逻辑
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// StartRecording(); // 注意：这将无限循环录制，可能需要用户界面干预来停止或重置计数器。
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string _outputFolder;
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string _outputFilePath;
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_outputFolder = Path.Combine(AppDomain.CurrentDomain.BaseDirectory + "Log", "ScreenRecordings");
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if (!Directory.Exists(_outputFolder))
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{
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Directory.CreateDirectory(_outputFolder);
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}
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// 生成输出文件名
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string timestamp = DateTime.Now.ToString("yyyyMMdd_HHmmss");
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_outputFilePath = Path.Combine(_outputFolder, $"{timestamp}.webm");
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StartRecording(_outputFilePath, 25);
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}
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}
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catch (Exception ex)
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{
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}
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}
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}
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}
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