[Matroska-devel] Downloading only audio portion from a matroska file

[Steve Lhomme]

On Fri, Mar 12, 2010 at 3:47 PM, Moritz Bunkus <moritz at bunkus.org> wrote:

> So you're correct that on disc you have e.g. VVVAVVVAVVVASVVVAVVVA etc
> But there's no way to get the exact position of all those blocks without
> reading the whole cluster.
>
> So what you're trying to achieve is probably not possible for Matroska
> files.
>

Unless you write a little app that would extract the file position+length of
each block for the track you want to extract. Also note that for some codecs
like Vorbis the raw extracted data may not work in most program, as they
usually expect it in Ogg. AAC may not be handled well as a raw stream in
many programs.

Steve
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