转码流的MIME类型

Question

I wish to determine the MIME type of the contents of a pipe. The pipe is outputting a transcoded video stream, so there is no corresponding file extension.

Can I determine the MIME type in these circumstances using say ffprobe -i pipe:0 or some equivalent? Is there a canonical mapping of codecs or container formats to MIME type?

Answer 1

You can use DetectContentType to guess the content type based on the magic numbers: http://golang.org/pkg/net/http/#DetectContentType