实例介绍
【实例简介】使用此实例,需要购买Oraycn.的授权
【实例截图】
【核心代码】
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using ESBasic; using Oraycn.MCapture; using Oraycn.MFile; namespace Oraycn.RecordPictureCompositionDemo { /* * 本demo采用的是 语音视频采集组件MCapture 和 语音视频录制组件MFile 的免费版本。若想获取MCapture、MFile的其它版本,请联系 www.oraycn.com ,客服qq:168757008。 * */ public partial class Form1 : Form { private ISoundcardCapturer soundcardCapturer; private IMicrophoneCapturer microphoneCapturer; private IDesktopCapturer desktopCapturer; private ICameraCapturer cameraCapturer; private IAudioMixter audioMixter; private VideoFileMaker videoFileMaker; private SilenceVideoFileMaker silenceVideoFileMaker; //private AudioFileMaker audioFileMaker; private int frameRate = 10; // 采集视频的帧频 private bool sizeRevised = false;// 是否需要将图像帧的长宽裁剪为4的整数倍 private bool isRecording = false; private bool isParsing = false; private Timer timer; private int seconds = 0; private bool justRecordVideo = false; public Form1() { InitializeComponent(); Oraycn.MCapture.GlobalUtil.SetAuthorizedUser("FreeUser", ""); Oraycn.MFile.GlobalUtil.SetAuthorizedUser("FreeUser", ""); this.timer = new Timer(); this.timer.Interval = 1000; this.timer.Tick = new EventHandler(timer_Tick); } void timer_Tick(object sender, EventArgs e) { if (this.isRecording && !this.isParsing) { var ts = new TimeSpan(0, 0, seconds); this.label_time.Text = ts.Hours.ToString("00") ":" ts.Minutes.ToString("00") ":" ts.Seconds.ToString("00"); if (this.videoFileMaker != null) { this.label_info.Text = this.videoFileMaker.ToBeProcessedVideoFrameCount.ToString() ; } } } #region 开始录制 private void button_start_Click(object sender, EventArgs e) { //TODO 开始录制桌面,依据 声音复选框 来选择使用 声卡 麦克风 还是混合录制, 图像复选框来选择 图像的采集器 try { int audioSampleRate = 16000; int channelCount = 1; seconds = 0; System.Drawing.Size videoSize_desktop ; #region 设置采集器 //桌面采集器 //如果需要录制鼠标的操作,第二个参数请设置为true this.desktopCapturer = CapturerFactory.CreateDesktopCapturer(frameRate, false); this.desktopCapturer.ImageCaptured = new CbGeneric<Bitmap>(this.DesktopImageCaptured); videoSize_desktop = this.desktopCapturer.VideoSize; //摄像头采集器 this.cameraCapturer = CapturerFactory.CreateCameraCapturer(0, new System.Drawing.Size(640, 480), frameRate); this.cameraCapturer.ImageCaptured = new CbGeneric<Bitmap>(this.VideoImageCaptured); if (this.checkBox_micro.Checked) { //麦克风采集器 this.microphoneCapturer = CapturerFactory.CreateMicrophoneCapturer(0); this.microphoneCapturer.CaptureError = new CbGeneric<Exception>(this.CaptureError); } if (this.checkBox_soundCard.Checked) { //声卡采集器 【目前声卡采集仅支持vista以及以上系统】 this.soundcardCapturer = CapturerFactory.CreateSoundcardCapturer(); this.soundcardCapturer.CaptureError = this.CaptureError; audioSampleRate = this.soundcardCapturer.SampleRate; channelCount = this.soundcardCapturer.ChannelCount; } if (this.checkBox_micro.Checked && this.checkBox_soundCard.Checked) { //混音器 this.audioMixter = CapturerFactory.CreateAudioMixter(this.microphoneCapturer, this.soundcardCapturer, SoundcardMode4Mix.DoubleChannel, true); this.audioMixter.AudioMixed = audioMixter_AudioMixed; audioSampleRate = this.audioMixter.SampleRate; channelCount = this.audioMixter.ChannelCount; } else if (this.checkBox_micro.Checked) { this.microphoneCapturer.AudioCaptured = audioMixter_AudioMixed; } else if (this.checkBox_soundCard.Checked) { this.soundcardCapturer.AudioCaptured = audioMixter_AudioMixed; } #endregion #region //开始采集 if (this.checkBox_micro.Checked) { this.microphoneCapturer.Start(); } if (this.checkBox_soundCard.Checked) { this.soundcardCapturer.Start(); } this.cameraCapturer.Start(); this.desktopCapturer.Start(); #endregion #region //录制组件 this.sizeRevised = (videoSize_desktop.Width % 4 != 0) || (videoSize_desktop.Height % 4 != 0); if (this.sizeRevised) { videoSize_desktop = new System.Drawing.Size(videoSize_desktop.Width / 4 * 4, videoSize_desktop.Height / 4 * 4); } if (!this.checkBox_micro.Checked && !this.checkBox_soundCard.Checked) { //只录制 图像 this.justRecordVideo = true; this.silenceVideoFileMaker = new SilenceVideoFileMaker(); this.silenceVideoFileMaker.Initialize("test.mp4", VideoCodecType.H264, videoSize_desktop.Width, videoSize_desktop.Height, frameRate, VideoQuality.Middle); } else { // 录制声音和图像 this.justRecordVideo = false; this.videoFileMaker = new VideoFileMaker(); this.videoFileMaker.Initialize("test.mp4", VideoCodecType.H264, videoSize_desktop.Width, videoSize_desktop.Height, frameRate, VideoQuality.High, AudioCodecType.AAC, audioSampleRate, channelCount, true); } #endregion this.isRecording = true; this.isParsing = false; this.timer.Start(); this.checkBox_micro.Enabled = false; this.checkBox_soundCard.Enabled = false; this.button_start.Enabled = false; } catch (Exception ee) { MessageBox.Show(ee.Message); } } #region CaptureError void CaptureError(Exception obj) { } #endregion #region VideoImageCaptured private Bitmap videoImgRecorded; //采集到的视频图像 void VideoImageCaptured(Bitmap img) { if (this.isRecording && !this.isParsing) { this.videoImgRecorded = img; } } #endregion #region DesktopImageCaptured //采集到的桌面图像 void DesktopImageCaptured(Bitmap img) { if (this.isRecording && !this.isParsing) { if (this.videoImgRecorded != null) { //这里要裁剪 Bitmap desktopImgRecorded = img; if (this.sizeRevised) // 对图像进行裁剪, MFile要求录制的视频帧的长和宽必须是4的整数倍。 { desktopImgRecorded = ESBasic.Helpers.ImageHelper.RoundSizeByNumber(img, 4); img.Dispose(); } //合并图像 Graphics g = Graphics.FromImage(desktopImgRecorded); g.DrawImage(this.videoImgRecorded, new Rectangle(new Point((desktopImgRecorded.Width - this.videoImgRecorded.Width), (desktopImgRecorded.Height - this.videoImgRecorded.Height)), desktopImgRecorded.Size)); g.Dispose(); if (!this.justRecordVideo) { this.videoFileMaker.AddVideoFrame(desktopImgRecorded); } else { this.silenceVideoFileMaker.AddVideoFrame(desktopImgRecorded); } } } } #endregion #region audioMixter_AudioMixed void audioMixter_AudioMixed(byte[] audioData) { if (this.isRecording && !this.isParsing) { if (!this.justRecordVideo) { this.videoFileMaker.AddAudioFrame(audioData); } } } #endregion #endregion #region 暂停 private void button_parse_Click(object sender, EventArgs e) { //TODO 暂停当前录制或恢复录制 //TODO label 中显示实际录制的时间,需要考虑暂停和恢复这种情况。 格式为 hh:mm:ss if (this.isParsing) { this.isParsing = false; } else { this.isParsing = true; } this.button_parse.Text = (!this.isParsing ? "暂停" : "恢复"); } #endregion #region 结束录制 private void button_stop_Click(object sender, EventArgs e) { this.checkBox_micro.Enabled = true; this.checkBox_soundCard.Enabled = true; this.button_start.Enabled = true; this.button_parse.Text = "暂停"; if (this.checkBox_micro.Checked) // 麦克风 { this.microphoneCapturer.Stop(); } if (this.checkBox_soundCard.Checked) //声卡 { this.soundcardCapturer.Stop(); } this.cameraCapturer.Stop(); this.desktopCapturer.Stop(); if (!this.justRecordVideo) { this.videoFileMaker.Close(true); } else { this.silenceVideoFileMaker.Close(true); } this.isRecording = false; MessageBox.Show("录制完成!"); } #endregion private void Form1_FormClosing(object sender, FormClosingEventArgs e) { if (this.isRecording) { MessageBox.Show("正在录制中,退出前请先停止录制!"); e.Cancel = true; return; } e.Cancel = false; } } }
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