[gst-devel] type finding
walters at debian.org
Mon Feb 3 07:22:50 CET 2003
[ I am on the list; please don't CC me ]
On Mon, 2003-02-03 at 06:49, Benjamin Otte wrote:
> I don't think it's a good idea to detect filetypes based on extensions,
> though it might be a nice idea to use it as a hint on which typefind to
> try first.
It is a quite efficient method. Also note that typefinding by content
isn't perfect either; you could just happen to have a say flac file
where a section looks like an mp3 frame.
> Even Nautilus uses sniffing exclusively I believe.
Exclusively? No way. Think about for remote filesystems. Opening up
every single file and looking at its content would be prohibitively
expensive. Just imagine looking at a web directory with a few hundred
files; then you'd need to make a few hundred HTTP requests.
> If no type is found, spider fetches a new buffer, appends it to the old
> one and restarts typefinding with that bigger buffer.
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