asp.net上传视频转换为flv格式,并截图(最好有例子)
--webConfig配置
UpFiles文件夹是要保存你上传的文件,PlayFiles文件夹是用于你转换后保存的文件(用于网上播放)
ImgFile文件夹是保存截取视频文件的图片,然后那两个mencoder和ffmpeg文件夹是视频转换工具.此视频转换也
可叫做mencoder+ffmpeg视频转换.
首先,在配置文件中给这些文件夹进行路径的配置.如下
<appSettings>
<!--工具文件夹-->
<add key="ffmpeg" value="ffmpeg/ffmpeg.exe"/>
<add key="mencoder" value="mencoder/mencoder.exe"/>
<add key="mplayer" value="mencoder/mplayer.exe"/>
<!--上传文件的路径-->
<add key="upfile" value="UpFiles"/>
<!--上专文件图片路径-->
<add key="imgfile" value="ImgFile"/>
<!--上传文件图片大小-->
<add key="CatchFlvImgSize" value="240x180"/>
<add key="widthSize" value="400"/>
<add key="heightSize" value="350"/>
<!--转换后文件路径-->
<add key="playfile" value="PlayFiles"/>
</appSettings>
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class Default2 : System.Web.UI.Page
{
// 扩展名定义
string[] strArrFfmpeg = new string[] { "asf", "avi", "mpg", "3gp", "mov" };
string[] strArrMencoder = new string[] { "wmv", "rm", "rmvb" };
protected void Page_Load(object sender, EventArgs e)
{
}
//
protected void btnUpload_Click(object sender, EventArgs e)
{
string upFileName = "";
if (this.FileUpload1.HasFile)
{
string fileName = PublicMethod.GetFileName(this.FileUpload1.FileName);// GetFileName();
if ((string)Session["file"] == fileName)
{
return;
}
upFileName = Server.MapPath(PublicMethod.upFile + fileName);
this.FileUpload1.SaveAs(upFileName);
string saveName = DateTime.Now.ToString("yyyyMMddHHmmssffff");
string playFile = Server.MapPath(PublicMethod.playFile + saveName);
string imgFile = Server.MapPath(PublicMethod.imgFile + saveName);
//System.IO.File.Copy(Server.MapPath(PublicMethod.playFile + "00000002.jpg"), Server.MapPath(PublicMethod.imgFile+"aa.jpg"));
PublicMethod pm = new PublicMethod();
string m_strExtension = PublicMethod.GetExtension(this.FileUpload1.PostedFile.FileName).ToLower();
string Extension = CheckExtension(m_strExtension);
if (m_strExtension == "flv")
{//直接拷贝到播放文件夹下
System.IO.File.Copy(upFileName, playFile + ".flv");
pm.CatchImg(upFileName, imgFile);
}
if (Extension == "ffmpeg")
{
pm.ChangeFilePhy(upFileName, playFile, imgFile);
}
else if (Extension == "mencoder")
{
pm.MChangeFilePhy(upFileName, playFile, imgFile);
}
#region 插入数据到数据库中
//插入数据库代码
#endregion
Session["file"] = fileName;
}
}
//
private string CheckExtension(string extension)
{
string m_strReturn = "";
foreach (string var in this.strArrFfmpeg)
{
if (var == extension)
{
m_strReturn = "ffmpeg"; break;
}
}
if (m_strReturn == "")
{
foreach (string var in strArrMencoder)
{
if (var == extension)
{
m_strReturn = "mencoder"; break;
}
}
}
return m_strReturn;
}