.F4V 的文件签名是什么？
.f4v 文件的十六进制签名是什么？
它没有在 文件签名表 中列出，我也无法在 Adobe 规范中找到它。或者我在这里误解了什么？目的是验证上传的文件。谢谢。
What is the hex signature for a .f4v file?
It is not listed in File Signatures Table nor could I find it in Adobe specs. Or am I misunderstanding something here? The purpose is to verify an uploaded file. Thanks.
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根据上述规范，F4V 文件由盒子组成。盒子有几十种类型。盒子有一个标题来说明其类型，并且每种盒子类型都有不同的签名 - 这些在规范中进行了描述。此外，箱子的放置顺序也没有严格规定。规格说明
F4V 文件中需要这种类型的框，但我想知道是否可以相信它始终是第一个。
所以我猜想 F4V 文件没有单一的签名代码，而是有几十个可能表明 f4v 的签名代码，其中出现的频率比其他代码更频繁。
我的结论基于 adobe 规范 http://download.macromedia.com/f4v/video_file_format_spec_v10_1.pdf
感谢 www0z0k 指出这一点。
According to the mentioned specs, an F4V file is composed of boxes. There are a couple of dozens types of boxes. A box has a header that states its type and there is a different signature for each box type - these are described in the specs. Furthermore, the order in which the boxes go is not strictly specified. The specs state that
This type of box is required in a F4V file, but I wonder if one can trust it to always be the first one.
So I guess that there is no single signature code for the F4V file, but rather a couple dozens that might indicate an f4v, with ones occurring more often than others.
My conclusions are based on the adobe specifications http://download.macromedia.com/f4v/video_file_format_spec_v10_1.pdf
Thanks to www0z0k for pointing it out.