Go homepage(回首页) Upload pictures (上传图片) Write articles (发文字帖)
The author:(作者)delvpublished in(发表于) 2014/1/23 3:11:05 ASP.NET实例:Asp.net,FMS,开发视频网站_[Asp.Net教程]
昨天看到利用FMS(Flash Media Server)做在线视频录制的资料,地址:http://www.cincn.com/article.asp?id=15,还有播放流式FLV文件的资料,地址:http://blogs.ugidotnet.org/kfra/archive/2006/10/04/50003.aspx,很好,把我高兴坏了,所以有了FMS架设视频服务器的想法, ,主要内容如下:开发步骤:1。下载FMS http://blogs.ugidotnet.org/kfra/archive/2006/10/04/50003.aspx,安装配置。2。使用flash制作FMS视频采集的控件。3。aspx页面嵌入FMS采集控件,运行采集数据上传到FMS服务器,修改数据库的视频文件存放地址。4。页面嵌入Flash播放控件,加入FLV处理流代码:
using System; using System.IO; using System.Web; /**//// /// Summary description for FLVStreaming /// public class FLVStreaming : IHttpHandler{ private static readonly byte[] _flvheader = HexToByte("464C5601010000000900000009"); //"FLV\x1\x1\0\0\0\x9\0\0\0\x9"
public FLVStreaming() { }
public void ProcessRequest(HttpContext context) { try { int pos; int length;
// Check start parameter if present string filename = Path.GetFileName(context.Request.FilePath);
using (FileStream fs = new FileStream(context.Server.MapPath(filename), FileMode.Open, FileAccess.Read, FileShare.Read)) { string qs = context.Request.Params["start"];
if (string.IsNullOrEmpty(qs)) { pos = 0; length = Convert.ToInt32(fs.Length); } else { pos = Convert.ToInt32(qs); length = Convert.ToInt32(fs.Length - pos) + _flvheader.Length; }
// Add HTTP header stuff: cache, content type and length context.Response.Cache.SetCacheability(HttpCacheability.Public); context.Response.Cache.SetLastModified(DateTime.Now);
context.Response.AppendHeader("Content-Type", "video/x-flv"); context.Response.AppendHeader("Content-Length", length.ToString());
// Append FLV header when sending partial file if (pos > 0) { context.Response.OutputStream.Write(_flvheader, 0, _flvheader.Length); fs.Position = pos; }
// Read buffer and write stream to the response stream const int buffersize = 16384; byte[] buffer = new byte[buffersize]; int count = fs.Read(buffer, 0, buffersize); while (count > 0) { if (context.Response.IsClientConnected) { context.Response.OutputStream.Write(buffer, 0, count); count = fs.Read(buffer, 0, buffersize); } else { count = -1; } } } } catch (Exception ex) { System.Diagnostics.Debug.WriteLine(ex.ToString()); } }
public bool IsReusable { get { return true; } }
private static byte[] HexToByte(string hexString) { byte[] returnBytes = new byte[hexString.Length / 2]; for (int i = 0; i < returnBytes.Length; i++) returnBytes[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16); return returnBytes; }
}修改配置文件,运行页面即可调出视频,播放速度很不错。虽说轻描淡写但已经给出应用Asp.net开发视频网站的思路。如果有兴趣可以联系我。来源:http://www.cnblogs.com/xiucai/archive/2007/06/13/782001.html
赞