mirror of
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255 lines
No EOL
7.7 KiB
C#
255 lines
No EOL
7.7 KiB
C#
#region License Information (GPL v3)
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/*
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ShareX - A program that allows you to take screenshots and share any file type
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Copyright (C) 2008-2014 ShareX Developers
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Optionally you can also view the license at <http://www.gnu.org/licenses/>.
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*/
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#endregion License Information (GPL v3)
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using HelpersLib;
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using System;
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using System.Diagnostics;
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using System.Drawing;
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using System.IO;
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using System.Threading;
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namespace ScreenCaptureLib
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{
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public class ScreenRecorder : IDisposable
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{
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public bool IsRecording { get; private set; }
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public bool WriteCompressed { get; set; }
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public int FPS
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{
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get
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{
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return fps;
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}
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set
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{
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if (!IsRecording)
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{
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fps = value;
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UpdateInfo();
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}
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}
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}
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public float DurationSeconds
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{
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get
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{
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return durationSeconds;
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}
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set
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{
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if (!IsRecording)
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{
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durationSeconds = value;
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UpdateInfo();
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}
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}
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}
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public Rectangle CaptureRectangle
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{
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get
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{
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return captureRectangle;
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}
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private set
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{
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if (!IsRecording)
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{
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captureRectangle = value;
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}
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}
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}
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public string CachePath { get; private set; }
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public ScreenRecordOutput OutputType { get; private set; }
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public delegate void ProgressEventHandler(int progress);
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public event ProgressEventHandler EncodingProgressChanged;
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private int fps, delay, frameCount;
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private float durationSeconds;
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private Rectangle captureRectangle;
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private HardDiskCache hdCache;
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private AVICache aviCache;
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private bool stopRequest;
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public ScreenRecorder(int fps, float durationSeconds, Rectangle captureRectangle, string cachePath, ScreenRecordOutput outputType)
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{
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if (string.IsNullOrEmpty(cachePath))
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{
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throw new Exception("Screen recorder cache path is empty.");
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}
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FPS = fps;
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DurationSeconds = durationSeconds;
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CaptureRectangle = captureRectangle;
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CachePath = cachePath;
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OutputType = outputType;
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if (OutputType == ScreenRecordOutput.AVI || OutputType == ScreenRecordOutput.AVICommandLine)
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{
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bool showOptions = OutputType == ScreenRecordOutput.AVI;
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aviCache = new AVICache(CachePath, FPS, CaptureRectangle.Size, showOptions);
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}
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else if (OutputType == ScreenRecordOutput.GIF)
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{
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hdCache = new HardDiskCache(CachePath);
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}
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}
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private void UpdateInfo()
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{
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delay = 1000 / fps;
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frameCount = (int)(fps * durationSeconds);
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}
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public void StartRecording()
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{
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if (!IsRecording)
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{
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IsRecording = true;
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stopRequest = false;
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for (int i = 0; (frameCount == 0 && !stopRequest) || i < frameCount; i++)
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{
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Stopwatch timer = Stopwatch.StartNew();
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Image img = Screenshot.CaptureRectangle(CaptureRectangle);
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if (OutputType == ScreenRecordOutput.AVI || OutputType == ScreenRecordOutput.AVICommandLine)
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{
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aviCache.AddImageAsync(img);
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}
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else if (OutputType == ScreenRecordOutput.GIF)
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{
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hdCache.AddImageAsync(img);
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}
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if ((frameCount == 0 && !stopRequest) || (i + 1 < frameCount))
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{
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int sleepTime = delay - (int)timer.ElapsedMilliseconds;
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if (sleepTime > 0)
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{
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Thread.Sleep(sleepTime);
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}
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else
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{
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//Debug.WriteLine("FPS drop: " + sleepTime);
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}
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}
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}
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if (OutputType == ScreenRecordOutput.AVI || OutputType == ScreenRecordOutput.AVICommandLine)
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{
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aviCache.Finish();
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}
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else if (OutputType == ScreenRecordOutput.GIF)
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{
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hdCache.Finish();
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}
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}
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IsRecording = false;
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}
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public void StopRecording()
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{
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stopRequest = true;
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}
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public void SaveAsGIF(string path, GIFQuality quality)
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{
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if (!IsRecording)
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{
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using (GifCreator gifEncoder = new GifCreator(delay))
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{
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int i = 0;
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int count = hdCache.Count;
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foreach (Image img in hdCache.GetImageEnumerator())
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{
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i++;
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OnEncodingProgressChanged((int)((float)i / count * 100));
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using (img)
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{
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gifEncoder.AddFrame(img, quality);
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}
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}
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gifEncoder.Finish();
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gifEncoder.Save(path);
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}
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}
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}
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public void EncodeUsingCommandLine(string output, string encoderPath, string encoderArguments)
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{
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if (!string.IsNullOrEmpty(CachePath) && File.Exists(CachePath) && !string.IsNullOrEmpty(encoderPath) && File.Exists(encoderPath))
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{
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OnEncodingProgressChanged(-1);
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Helpers.CreateDirectoryIfNotExist(output);
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using (Process process = new Process())
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{
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ProcessStartInfo psi = new ProcessStartInfo(encoderPath);
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encoderArguments = encoderArguments.Replace("%input", "\"" + CachePath + "\"").Replace("%output", "\"" + output + "\"");
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psi.Arguments = encoderArguments;
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psi.WindowStyle = ProcessWindowStyle.Hidden;
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process.StartInfo = psi;
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process.Start();
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process.WaitForExit();
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}
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OnEncodingProgressChanged(100);
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}
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}
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protected void OnEncodingProgressChanged(int progress)
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{
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if (EncodingProgressChanged != null)
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{
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EncodingProgressChanged(progress);
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}
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}
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public void Dispose()
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{
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if (hdCache != null)
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{
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hdCache.Dispose();
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}
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if (aviCache != null)
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{
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aviCache.Dispose();
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}
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}
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}
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} |