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README.md
| @@ -4,7 +4,7 @@ Windows 中使用 PowerShell 进行录屏的脚本，只在用户活动的时（ | |||
| 4 | 4 | ||
| 5 | 5 | ## 准备 | |
| 6 | 6 | ||
| 7 | - | - 安装 `ffmpeg` 用来将截屏的png转换为视频. | |
| 7 | + | - 安装 `ffmpeg` 用来将截屏的png转换为视频. 如果不需要视频只要图片可以不装 | |
| 8 | 8 | ||
| 9 | 9 | ## 用法 | |
| 10 | 10 | 1. 用powsershell执行 `screenshot.ps1` 开始截屏生成png文件. | |
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README.md(file creato)
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| 1 | + | # Windows录屏脚本 | |
| 2 | + | ||
| 3 | + | Windows 中使用 PowerShell 进行录屏的脚本，只在用户活动的时（鼠标点击或移动或敲打键盘）才进行录制 | |
| 4 | + | ||
| 5 | + | ## 准备 | |
| 6 | + | ||
| 7 | + | - 安装 `ffmpeg` 用来将截屏的png转换为视频. | |
| 8 | + | ||
| 9 | + | ## 用法 | |
| 10 | + | 1. 用powsershell执行 `screenshot.ps1` 开始截屏生成png文件. | |
| 11 | + | 2. 停止powershell，执行 `make.cmd` 开始导出视频. | |
| 12 | + | 3. `generate-input-list.py` 可选的python脚本用来重新生成`duration.txt`当你删除了部分png文件时. | |
| 13 | + | ||
| 14 | + | ## 说明 | |
| 15 | + | - `duration.txt` 是给`ffmpeg`合成视频时用的时间轴文件，里面指明了每个png图片的播放时长。如果删除了部分png图片，需要使用`generate-input-list.py`来重新生成它 | |
generate-input-list.py(file creato)
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| 1 | + | import os | |
| 2 | + | from datetime import datetime | |
| 3 | + | ||
| 4 | + | time_format = '%Y%m%d_%H%M%S%f' | |
| 5 | + | ||
| 6 | + | # 获取当前目录下所有的png文件名，无扩展名 | |
| 7 | + | png_files = [f.split('.')[0] for f in os.listdir('./shots') if f.endswith('.png')] | |
| 8 | + | ||
| 9 | + | # 解析文件名并排序 | |
| 10 | + | sorted_files = sorted(png_files, key=lambda x: datetime.strptime(x, time_format)) | |
| 11 | + | ||
| 12 | + | # 计算时间间隔并生成输入文件 | |
| 13 | + | with open('./shots/duration.txt', 'w') as f: | |
| 14 | + | for i in range(len(sorted_files)): | |
| 15 | + | current_file = sorted_files[i] | |
| 16 | + | current_time = datetime.strptime(current_file, time_format) | |
| 17 | + | ||
| 18 | + | if i != 0: | |
| 19 | + | prev_file = sorted_files[i-1] | |
| 20 | + | prev_time = datetime.strptime(prev_file, time_format) | |
| 21 | + | duration = (current_time - prev_time).total_seconds() | |
| 22 | + | f.write(f"duration {duration}\n") | |
| 23 | + | ||
| 24 | + | f.write(f"file '{current_file}.png'\n") | |
| 25 | + | ||
| 26 | + | print("输入文件列表已生成为 duration.txt") | |
make.cmd(file creato)
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| 1 | + | ffmpeg -f concat -i ./shots/duration.txt -pix_fmt yuv420p -c:v libx264 -r 5 output.mp4 | |
screenshot.ps1(file creato)
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| 1 | + | # 定义保存截图的文件夹路径为当前脚本所在目录下的shots文件夹 | |
| 2 | + | $folderPath = Join-Path -Path $PSScriptRoot -ChildPath "shots" | |
| 3 | + | if (-not (Test-Path -Path $folderPath)) { | |
| 4 | + | New-Item -ItemType Directory -Path $folderPath | |
| 5 | + | } | |
| 6 | + | ||
| 7 | + | # 导入用户32.dll，用于检测鼠标键盘活动 | |
| 8 | + | Add-Type @" | |
| 9 | + | using System; | |
| 10 | + | using System.Runtime.InteropServices; | |
| 11 | + | public class UserActivity { | |
| 12 | + | [DllImport("user32.dll")] | |
| 13 | + | public static extern bool GetLastInputInfo(ref LASTINPUTINFO plii); | |
| 14 | + | ||
| 15 | + | [StructLayout(LayoutKind.Sequential)] | |
| 16 | + | public struct LASTINPUTINFO { | |
| 17 | + | public uint cbSize; | |
| 18 | + | public uint dwTime; | |
| 19 | + | } | |
| 20 | + | } | |
| 21 | + | "@ | |
| 22 | + | ||
| 23 | + | # 检测用户是否活跃 | |
| 24 | + | function IsUserActive { | |
| 25 | + | $lastInput = New-Object UserActivity+LASTINPUTINFO | |
| 26 | + | $lastInput.cbSize = [System.Runtime.InteropServices.Marshal]::SizeOf($lastInput) | |
| 27 | + | ||
| 28 | + | if ([UserActivity]::GetLastInputInfo([ref]$lastInput)) { | |
| 29 | + | $idleTime = [Math]::Floor([TimeSpan]::FromMilliseconds([Environment]::TickCount - $lastInput.dwTime).TotalSeconds) | |
| 30 | + | # 如果空闲时间小于5秒，认为用户是活跃的 | |
| 31 | + | return ($idleTime -lt 1) | |
| 32 | + | } | |
| 33 | + | return $false | |
| 34 | + | } | |
| 35 | + | ||
| 36 | + | $durationTxt = Join-Path -Path $folderPath -ChildPath "duration.txt" | |
| 37 | + | $fileMatches = if (Test-Path -Path $durationTxt) { (Get-Content -Path $durationTxt -Tail 3 | Select-String -Pattern "^file '(.*\.png)'$").Matches } else { @() } | |
| 38 | + | $script:lastScreenshotFile = if ($fileMatches.Count -gt 0) { $fileMatches[0].Groups[1].Value } else { "" } | |
| 39 | + | # Write-Host "lastScreenshotFile: $lastScreenshotFile" | |
| 40 | + | $script:isFirstRun = $true | |
| 41 | + | $script:lastScreenshotTime = if ($script:lastScreenshotFile -ne "") { [DateTime]::ParseExact($script:lastScreenshotFile.Substring(0, 18), "yyyyMMdd_HHmmssfff", $null) } else { [DateTime]::MinValue } | |
| 42 | + | ||
| 43 | + | # 截屏函数 | |
| 44 | + | function TakeScreenshot { | |
| 45 | + | $now = Get-Date | |
| 46 | + | $timestamp = $now.ToString("yyyyMMdd_HHmmssfff") | |
| 47 | + | $filePath = Join-Path -Path $folderPath -ChildPath "$timestamp.png" | |
| 48 | + | ||
| 49 | + | Add-Type -AssemblyName System.Windows.Forms | |
| 50 | + | Add-Type -AssemblyName System.Drawing | |
| 51 | + | $bitmap = New-Object System.Drawing.Bitmap([System.Windows.Forms.Screen]::PrimaryScreen.Bounds.Width, [System.Windows.Forms.Screen]::PrimaryScreen.Bounds.Height) | |
| 52 | + | $graphics = [System.Drawing.Graphics]::FromImage($bitmap) | |
| 53 | + | # Capture the screen | |
| 54 | + | $graphics.CopyFromScreen(0, 0, 0, 0, $bitmap.Size) | |
| 55 | + | ||
| 56 | + | # Draw the cursor | |
| 57 | + | $cursorPosition = [System.Windows.Forms.Cursor]::Position | |
| 58 | + | $cursorRectangle = New-Object System.Drawing.Rectangle($cursorPosition, [System.Drawing.Size]::new(32, 32)) # Adjust size if needed | |
| 59 | + | # [System.Windows.Forms.Cursor]::Current.Draw($graphics, $cursorRectangle) | |
| 60 | + | [System.Windows.Forms.Cursors]::Arrow.Draw($graphics, $cursorRectangle) | |
| 61 | + | ||
| 62 | + | $bitmap.Save($filePath, [System.Drawing.Imaging.ImageFormat]::Png) | |
| 63 | + | ||
| 64 | + | # Add filename to duration.txt | |
| 65 | + | if ($script:lastScreenshotFile -ne "") { | |
| 66 | + | $duration = ([TimeSpan]::FromTicks(($now - $script:lastScreenshotTime).Ticks)).TotalSeconds | |
| 67 | + | $durationStr = "duration {0:F3}" -f $duration | |
| 68 | + | if ($script:isFirstRun) { | |
| 69 | + | $lastDuration = Get-Content -Path $durationTxt -Tail 1 | Select-String -Pattern "^duration [\d\.]+$" | |
| 70 | + | if ($lastDuration) { | |
| 71 | + | # remove last line | |
| 72 | + | $lines = Get-Content -Path $durationTxt | |
| 73 | + | $lines = $lines[0..($lines.Length - 2)] | |
| 74 | + | $lines += $durationStr | |
| 75 | + | $lines | Set-Content -Path $durationTxt | |
| 76 | + | } else { | |
| 77 | + | Add-Content -Path $durationTxt -Value $durationStr | |
| 78 | + | } | |
| 79 | + | $script:isFirstRun = $false | |
| 80 | + | } else { | |
| 81 | + | Add-Content -Path $durationTxt -Value $durationStr | |
| 82 | + | } | |
| 83 | + | } | |
| 84 | + | Add-Content -Path $durationTxt -Value "file '$timestamp.png'" | |
| 85 | + | ||
| 86 | + | Write-Host "Screenshot saved: $timestamp.png" | |
| 87 | + | [console]::beep(1000, 500) # 播放提示音 | |
| 88 | + | ||
| 89 | + | $script:lastScreenshotTime = $now | |
| 90 | + | $script:lastScreenshotFile = "$timestamp.png" | |
| 91 | + | } | |
| 92 | + | ||
| 93 | + | # Delay 3 seconds to start | |
| 94 | + | Start-Sleep -Seconds 3 | |
| 95 | + | ||
| 96 | + | # 主循环 | |
| 97 | + | while ($true) { | |
| 98 | + | try { | |
| 99 | + | if (IsUserActive) { | |
| 100 | + | TakeScreenshot | |
| 101 | + | } | |
| 102 | + | Start-Sleep -Seconds 1 | |
| 103 | + | } catch { | |
| 104 | + | Write-Host "An error occurred: $_" | |
| 105 | + | Start-Sleep -Seconds 5 # 出错时等待5秒再继续 | |
| 106 | + | } | |
| 107 | + | } | |
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