Absolute file paths

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opatut
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Absolute file paths

Post by opatut » Sun Aug 26, 2012 12:36 pm

Hey guys,

I am making a framework where people can build custom audio visualizers in Löve. I want them to be able to load up their own audio file, i.e. run

Code: Select all

love visualove.love /path/to/audio/file.mp3
and have it played. It seems like love.filesystem does not support absolute paths, neither did I find a way to wrap a userdata object (from io.open) into a Love File Object, which I need to decode the audio. Is there any workaround for this, or do I have to request something similar to be implemented in Löve? I just want to bypass the PhysFS.

Thanks
- opatut

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Boolsheet
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Location: Switzerland

Re: Absolute file paths

Post by Boolsheet » Sun Aug 26, 2012 2:13 pm

opatut wrote:It seems like love.filesystem does not support absolute paths
That is correct.
opatut wrote:neither did I find a way to wrap a userdata object (from io.open) into a Love File Object
You can do that with love.filesystem.newFileData.

Code: Select all

love.filesystem.newFileData(myData, "myAudio.mp3", "file")
The mp3 extension in the file name is important in this case.
Shallow indentations.

opatut
Prole
Posts: 7
Joined: Mon Feb 20, 2012 2:34 pm

Re: Absolute file paths

Post by opatut » Sun Aug 26, 2012 4:44 pm

Thanks. Problem is, who do I get that FileData through the Decoder and SoundData into the SoundSource? The Decoder won't accept userdata, only filenames or Löve files. And love's FileData is not a 'File' object.

I thought I could do this:

io.open -> love.FileData -> love.File -> love.audio.Decoder -> love.audio.SoundData -> love.sound.Source

but apparently I cannot create a love.File from memory.

opatut
Prole
Posts: 7
Joined: Mon Feb 20, 2012 2:34 pm

Re: Absolute file paths

Post by opatut » Sun Aug 26, 2012 4:54 pm

I even tried copying the metatable from a love.File to my file userdata - but well, that is not allowed from Lua:

http://lua-users.org/lists/lua-l/2004-06/msg00647.html

I will try to solve it by copying the file to my ~/.local/share/love/ directory via io, then loading it via PhysFS... hope that works.

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Boolsheet
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Joined: Wed Dec 29, 2010 4:57 am
Location: Switzerland

Re: Absolute file paths

Post by Boolsheet » Sun Aug 26, 2012 4:57 pm

Ah. I thought one of the functions takes Data objects. It looks like they don't, sorry.
Shallow indentations.

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