C# 如何在asp.net中传输视频内容?
我有以下下载视频内容的代码:C# 如何在asp.net中传输视频内容?,c#,.net,asp.net,streaming,video-streaming,C#,.net,Asp.net,Streaming,Video Streaming,我有以下下载视频内容的代码: WebRequest wreq = (HttpWebRequest)WebRequest.Create(url); using (HttpWebResponse wresp = (HttpWebResponse)wreq.GetResponse()) using (Stream mystream = wresp.GetResponseStream()) { using (BinaryReader reader = new BinaryReader(mystrea
WebRequest wreq = (HttpWebRequest)WebRequest.Create(url);
using (HttpWebResponse wresp = (HttpWebResponse)wreq.GetResponse())
using (Stream mystream = wresp.GetResponseStream())
{
using (BinaryReader reader = new BinaryReader(mystream))
{
int length = Convert.ToInt32(wresp.ContentLength);
byte[] buffer = new byte[length];
buffer = reader.ReadBytes(length);
Response.Clear();
Response.Buffer = false;
Response.ContentType = "video/mp4";
//Response.BinaryWrite(buffer);
Response.OutputStream.Write(buffer, 0, buffer.Length);
Response.End();
}
}
但问题是,整个文件在播放之前都会下载。我怎样才能使它流式播放,因为它仍在下载?或者这是由客户机/接收器应用程序来管理的吗?您看过了吗
查看示例代码您正在将整个文件读入单个缓冲区,然后立即发送整个字节数组 您应该在
while
循环中读入较小的缓冲区
例如:
byte[] buffer = new byte[4096];
while(true) {
int bytesRead = myStream.Read(buffer, 0, buffer.Length);
if (bytesRead == 0) break;
Response.OutputStream.Write(buffer, 0, bytesRead);
}
这对您来说效率更高,尤其是当您需要从服务器上的文件流式传输视频,或者甚至该文件托管在另一台服务器上时 服务器上的文件:
context.Response.BinaryWrite(File.ReadAllBytes(HTTPContext.Current.Server.MapPath(_video.Location)));
外部服务器上的文件:
var wc = new WebClient();
context.Response.BinaryWrite(wc.DownloadData(new Uri("http://mysite/video.mp4")));
啊,就是这样!非常感谢。我确实尝试过类似的方法,但将我的非工作代码与您的代码进行比较,我发现我误用了Response.Flush()。再次感谢,SLaks.cool-但是您仍然必须实现分块缓冲区,否则视频容器将等待整个下载过程。正在关闭浏览器..指向示例代码的链接已关闭。这就是为什么答案应该包含/复制他们引用的任何代码。