Hi,
I try to build an installer(NSIS) for a game mod which should decode the soundfiles from MP3 to wav during installation.
I integrated Lame into the installer and the problem is to define the right batch command.
There are 855 mp3 files in 3 folders and 2 subfolders and should be unpacked and decoded with the same structure.
I tried to decode the files with lame -S --decode "folder/*.mp3", but this gives me *.mp3.wav files as result.
I don´t want to write 855 times (lame -S --decode "folder/1.mp3" "folder/1.wav"), so is there another way to do it and is there a command switch to delete the mp3 afterwards?

Thx

PhilG

Problem solved.
Lame isn´t capable of decoding complete directories and a batch makes no sense, because of the chooasble target directory during installation.
I had to write 855 times (lame -S --decode "folder/1.mp3" "folder/1.wav") etc.
But I had the idea to let this work do by a macro I recorded for the first line.

wth are you trying to do? Rip a game? I smell gamez...

for %a in (*.mp3) do lame --decode "%a"

from within a bat file you need todo %% not just %

no gamez ... it looks like he is doing a mod installer

Right, it´s the first time I build an installer for a mod, because the wav files took over 480MB.
The last version of the mod compressed as RAR had 275 MB, now built with the installer and MP3 it has only 100MB and contains over 600MB of data.
A bat wouldn´t work, because you can choose the directory during installation.
I don´t know how to put this information into the bat.

You can pass parameters to batch files like if batch.bat contains

then launching

should change the current directory to c:\destination.
Google can give you quite a lot of help and examples on using batch files

Any particular reason you can't just implement an MP3 decoder into the mod? Decoding a bunch of MP3s to WAVs seems like a huge waste of disk space.

The game doesn´t support MP3 only wav and I don´t want to change the hardcoded things to keep compatibility with other mods.
Maybe the batch thing would work, but this had to be implemented differently to the installer script.
The way I did it is ok for me, the installer extracts all MP3 to the right folders, converts them to wav and is deleting the MP3 afterwards.
The only disadvantage is that it takes more time to install the mod.

This works well for me. It converts the mp3s to wavs and renames all the files correctly to *.wav instead of *.mp3