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https://github.com/ShareX/ShareX.git
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112 lines
4 KiB
C#
112 lines
4 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.Collections.Generic;
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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.Linq;
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using System.Text;
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using System.Windows.Forms;
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namespace ScreenCaptureLib
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{
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public class FFmpegCLIHelper : ExternalCLIManager
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{
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public ScreencastOptions Options { get; private set; }
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public FFmpegCLIHelper(ScreencastOptions options)
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{
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Options = options;
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if (string.IsNullOrEmpty(Options.FFmpeg.CLIPath))
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{
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Options.FFmpeg.CLIPath = Path.Combine(Application.StartupPath, "ffmpeg.exe");
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}
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Helpers.CreateDirectoryIfNotExist(Options.OutputPath);
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// It is actually output data
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ErrorDataReceived += FFmpegCLIHelper_OutputDataReceived;
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}
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private void FFmpegCLIHelper_OutputDataReceived(object sender, DataReceivedEventArgs e)
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{
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//DebugHelper.WriteLine(e.Data);
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}
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public bool Record(Rectangle captureRectangle)
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{
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// https://github.com/rdp/screen-capture-recorder-to-video-windows-free configuration section
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string dshowRegistryPath = "Software\\screen-capture-recorder";
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RegistryHelpers.CreateRegistry(dshowRegistryPath, "start_x", captureRectangle.X);
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RegistryHelpers.CreateRegistry(dshowRegistryPath, "start_y", captureRectangle.Y);
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RegistryHelpers.CreateRegistry(dshowRegistryPath, "capture_width", captureRectangle.Width);
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RegistryHelpers.CreateRegistry(dshowRegistryPath, "capture_height", captureRectangle.Height);
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RegistryHelpers.CreateRegistry(dshowRegistryPath, "default_max_fps", Options.FPS);
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StringBuilder args = new StringBuilder();
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// input FPS
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args.AppendFormat("-r {0} ", Options.FPS);
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args.Append("-f dshow -i ");
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// dshow audio/video device: https://github.com/rdp/screen-capture-recorder-to-video-windows-free
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//args.AppendFormat("audio=\"{0}\":", "virtual-audio-capturer");
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args.AppendFormat("video=\"{0}\" ", "screen-capture-recorder");
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// output FPS
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args.AppendFormat("-r {0} ", Options.FPS);
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// x264 encoder
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args.Append("-c:v libx264 ");
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// TODO: Add crf, preset etc. to options
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// https://trac.ffmpeg.org/wiki/x264EncodingGuide
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args.AppendFormat("-crf {0} ", 23);
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args.AppendFormat("-preset {0} ", "medium");
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// -pix_fmt yuv420p required otherwise can't stream in Chrome
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// -y for overwrite file
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args.AppendFormat("-pix_fmt yuv420p -y \"{0}\"", Options.OutputPath);
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int result = Open(Options.FFmpeg.CLIPath, args.ToString());
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return result == 0;
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}
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public void ListDevices()
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{
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WriteInput("-list_devices true -f dshow -i dummy");
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}
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public override void Close()
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{
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WriteInput("q");
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}
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}
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} |