//录像
private void btnVideo_Click(object sender, EventArgs e)
{
if (btnVideo.Text == "录像")
{
sfDialog.Filter = "*.avi|*.avi";
sfDialog.Title = "保存视频文件";
sfDialog.InitialDirectory = Application.StartupPath.Substring(0, Application.StartupPath.LastIndexOf("\\")).Substring(0, Application.StartupPath.Substring(0, Application.StartupPath.LastIndexOf("\\")).LastIndexOf("\\")) + "\\Video\\";
if (sfDialog.ShowDialog() == DialogResult.OK)
{
btnVideo.Text = "停止录像";
VideoOperate.VCASetKeyFrmInterval(0, 250); //设置MPEG压缩的关键帧间隔
VideoOperate.VCASetBitRate(0, 256); //设置MPEG压缩的位率
VideoOperate.VCASetVidCapFrameRate(0, 25, false); //设置视频捕获频率
VideoOperate.VCASetVidCapSize(0, 320, 240); //设置视频捕获尺寸，此处即为宽320高240
VideoOperate.VCASetXVIDQuality(0, 10, 3); //设置MPEG4_XVID压缩的质量
VideoOperate.VCASetXVIDCompressMode(0, VideoOperate.COMPRESSMODE.XVID_VBR_MODE); //设置MPEG4_XVID压缩的模式
VideoOperate.VCAStartVideoCapture(0, VideoOperate.CAPMODEL.CAP_MPEG4_STREAM, VideoOperate.MP4MODEL.MPEG4_AVIFILE_CALLBACK, sfDialog.FileName); //开始视频捕获
}
}
else if (btnVideo.Text == "停止录像")
{
btnVideo.Text = "录像";
VideoOperate.VCAStopVideoCapture(0); //停止视频捕获
}
}