iPhone / iPad Safari需要视频的“Accept-Ranges”标头吗？ [英] Does iPhone/iPad Safari require 'Accept-Ranges' header for video?

问题描述

我在使用移动版Safari浏览器播放我的开发者服务器中的视频时遇到问题。我的开发服务器不支持'Accept-Ranges'标题，在阅读了几个论坛后，我发现这可能是我的问题。 以下是论坛发帖示例那。

这是正确的吗？移动Safari是否需要Accept-Ranges标头？任何人都可以指出我的任何Apple文档实际上是这样说的吗？

谢谢。

我发现一些Apple文档说它确实需要视频。

托管媒体的HTTP服务器iOS文件必须支持字节范围
请求，iOS用于在媒体播放中执行随机访问。
（字节范围支持也称为内容范围或部分范围
支持。）大多数HTTP 1.1服务器已经支持
字节范围的请求。

如果您不确定媒体服务器是否支持字节范围
请求，则可以在OS X中打开终端应用程序，并使用
curl命令 - 从
服务器上的文件下载一个短片段： example.com/test.mov -o / dev / null

如果该工具报告它下载了100个字节，则媒体服务器正确
处理了字节范围请求。如果它下载整个文件，则
可能需要更新媒体服务器。

资料来源：Apple Documentation

I've been having problems serving videos from my dev server that play in mobile Safari. My dev server does not support the 'Accept-Ranges' header and after reading a few forums I've discovered that may be my problem. Here is an example forum posting saying just that.

Is this correct? Does mobile Safari require the Accept-Ranges header? Can anyone point me to any Apple documentation actually stating that?

Thanks.

解决方案

I found some Apple documentation that says that it does in fact need that for video.

HTTP servers hosting media files for iOS must support byte-range requests, which iOS uses to perform random access in media playback. (Byte-range support is also known as content-range or partial-range support.) Most, but not all, HTTP 1.1 servers already support byte-range requests.

If you are not sure whether your media server supports byte-range requests, you can open the Terminal application in OS X and use the curl command-line tool to download a short segment from a file on the server:

curl --range 0-99 http://example.com/test.mov -o /dev/null

If the tool reports that it downloaded 100 bytes, the media server correctly handled the byte-range request. If it downloads the entire file, you may need to update the media server.

Source: Apple Documentation

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