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Rockbox mail archiveSubject: Re: Patch - virtual file structuresRe: Patch - virtual file structures
From: TP Diffenbach <rockbox_at_diffenbach.org>
Date: Sun, 8 Jun 2003 20:48:45 -0400 I'd been thinking -- nothing more -- of doing something similar, hacking dir_cache and tree.c to display playlists, as alternate "directory structures". I think your work is a good start but would be useful if it could read .m3u playlists, perhaps with additional optional syntax to represent virtual "subdirectories". What I don't like is the binary format; if you're referring to files and directories as strings, e.g., "/dir/dir/file.mp3", I figure you can't get much addiional compression or speed with a binary format anyway. Why do you prefer to seperate the parser out? I believe that the .m3u specification allows embedding the name of a playlist within a playlist, which could represent subdirectories; it would additonally be nice to represent them inline using your syntax or similar. --Tom Quoting Owen Sebastian Hofmann <oshofmann_at_amherst.edu>: > Hi. Recently I've been playing around with the rockbox source, and I've > started working on implementing a sort of virtual directory hierarchy > within the file browser. The user can create a file which defines an > arbitrary layout of directories and files, such as this: > "root" { > "file one" /directory/file.mp3 > "file two" /directory2/file2.mp3 > "a subdirectory" { > "another" /foo/bar.mp3 > "another subdir" { > "whee" /fun.mp3 > } > } > "another file" /asdf/asdf.mp3 > } > > This file is then translated into a binary format (I decided to use a > binary format for speed and code simplicity inside of rockbox itself), > which, when browsed into with the rockbox file browser, represents that > layout as if it were an actual directory layout. I've uploaded some > files to http://www.amherst.edu/~oshofmann/rockbox/ which contain a very > alpha version of this. These are: > rockbox-2.0-vfs.diff: a patch to the 2.0 version of rockbox. Changes > are fairly self-contained, so it probably wouldn't be too hard to make > it work with cvs versions > > vfsc.c: a very sloppily coded interpreter for the text format mentioned > above. Written and tested using linux, it should work fine with cygwin. > I have no idea about windows. This is separate from the rockbox > source tree. > > vfs.h: file included from both the rockbox patched sources and the > interpreter. > > So far, this is very preliminary. I've only implemented browsing of the > .vfs files and playing of directories. No queueing, resume, or checks > to make sure you don't try to record or alter any files (Altering files > could muck things up, recording will probably just record to the > directory containing the .vfs file). The text file must be in exactly > the format listed above. Quoted label, white space, unquoted file name, > line break. I'm writing to see if anybody is interested in seeing more > work on this. I think that this feature, while perhaps not > extraordinarily useful, is interesting, as it would allow completely > arbitrary structuring of files, such as by genre, mood, or anything the > user can think up. > > -- Archos FM has a Rockbox!Received on 2003-06-09 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |