哇哇的，FLV视频截图老是搞不好。
本帖最后由 woyaodubo 于 2013-12-10 13:04:02 编辑
protected void bntup_Click(object sender, EventArgs e)
{
string getdatetime = DateTime.Now.ToString("yyMMddHHmmssfff");
string fileName = "Teacher\\Video\" + getdatetime + System.IO.Path.GetExtension(uploadfile.FileName);
string sql = "insert into Video(Video_Name,Video_Path,Video_PostDate,TeacherName,College,Profession,Subject,Is_Rec,Is_Top) values('" + this.uploadfile.FileName + "','" + getdatetime + System.IO.Path.GetExtension(uploadfile.FileName) + "','" + DateTime.Now.ToString("yy/MM/dd HH:mm") + "','" + Session["UserName"].ToString() + "','" + this.DropDownList_college.SelectedValue + "','" + this.DropDownList_profession.SelectedValue + "','" + this.DropDownList_subject.SelectedValue + "','" + cbox + "','" + cbox2 + "')";
string filePath = uploadfile.PostedFile.FileName;
string fileExt = filePath.Substring(filePath.LastIndexOf(".") + 1);
if (uploadfile.FileName != "")
{
if (fileExt.ToLower() == "rmvb" || fileExt.ToLower() == "wmv" || fileExt.ToLower() == "swf" || fileExt.ToLower() == "flv")
{
string playFile = "Teacher/playFile/" + getdatetime + ".flv"; //playFile *1*
string videoImg = "Teacher/videoImg/" + getdatetime + ".jpg";
if (fileExt.ToLower() == "flv")
{
bool add = mydata.ExceSQL(sql); //不能放到if外面，否则即使不能上传文件，但数据库仍然会插入记录。
if (add)
{
uploadfile.SaveAs(Server.MapPath("~/" + fileName));//
File.Copy(uploadfile.PostedFile.FileName, Server.MapPath("../" + playFile));//复制一份到playFile *1*
bool ok = catchImg(Server.MapPath("../" + playFile), Server.MapPath("../" + videoImg));
if (ok)
{
Response.Write("<script language=javascript>alert('上传成功');</script>");
this.CheckBox1.Checked = false;
this.CheckBox2.Checked = false;
}
else
{
Response.Write("<script language=javascript>alert('视频截图失败!');</script>");
}
}
}
}
else
{
Response.Write("<script language=javascript>alert('只能上传后缀为rmvb,wmv,swf,flv的视频文件！');</script>");
this.CheckBox1.Checked = false;
this.CheckBox2.Checked = false;
}
}
else
{
Response.Write("<script language=javascript>alert('请选择视频文件！');</script>");
this.CheckBox1.Checked = false;
this.CheckBox2.Checked = false;
}
}
//获取转换工具路径
public static string ffmpegtool = "tool/ffmpeg.exe";
//视频截图大小
public static string sizeOfImg = "240x180";
public static bool catchImg(string fileName, string imgFile)
{
//获取截图工具路径
string ffmpeg = System.Web.HttpContext.Current.Server.MapPath("../") + ffmpegtool;
Process pss = new Process();
//设置启动程序的路径
pss.StartInfo.FileName = ffmpeg;
pss.StartInfo.Arguments = " -i " + fileName + " -y -f image2 -ss 2 -vframes 1 -s " + sizeOfImg + " " + imgFile;
//启动进程
pss.Start();
return true;
}
