从C＃中读取并发送mp4文件

问题描述

限时删除！！

我使用以下代码从服务器读取mp4文件并通过http发送。我的服务器端是一个mvc4控制器。有趣的是Chrome中的视频效果很好。但是在ios设备上没有得到任何东西，所以我认为这可能是一个响应流头问题。我缺少什么？

I am using the following code to read a mp4 file from the server and send it over http. My server side is a mvc4 controller. Funny thing is the video renders fine in Chrome. But not getting anything on ios devices so I am thinking this could be a response stream header problem. Anything I am missing?

        var stream = new FileStream(path, FileMode.Open, FileAccess.Read);
        var result = new HttpResponseMessage(HttpStatusCode.OK)
        {
            Content = new StreamContent(stream)
        };
        result.Content.Headers.ContentType = new MediaTypeHeaderValue("video/mp4");
        result.Content.Headers.ContentRange = new ContentRangeHeaderValue(0, stream.Length);
        result.Content.Headers.Add("filename", fileName);
        return result;

这是响应头，如果它提供任何线索：

This is the response header if it gives any clues:

Cache-Control:no-cache
Content-Length:2236480
Content-Range:bytes 0-2236480/*
Content-Type:video/mp4
Date:Fri, 24 May 2013 14:39:11 GMT
Expires:-1
filename:3.mp4
Pragma:no-cache
Server:Microsoft-IIS/7.5
X-AspNet-Version:4.0.30319
X-Powered-By:ASP.NET

推荐答案

我认为这是iOS设备上的编码器问题。据我所知，iOS iPhone设备使用H.264 mp4编码。您应该为视频尝试Baseline level 3编码。您可以在找到更多信息。 。

I believe this is an encoder issue on iOS devices. iOS iPhone devices from what I know, use H.264 mp4 encoding. You should try Baseline level 3 encoding for the videos. You can find more info here.

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