Decrypts Ableton DRM-protected *.aif files

This works on *nix like systems. Replace apt by your package provider and it should work. On Windows the easiest way to make this work is using Ubuntu Subsystem (TODO doc).

Install dependencies, then run the build file.

# Installs gcc, make, etc.
sudo apt install build-essential

# Installs libssl for crypto functions
sudo apt install libssl-dev

# ffmpeg
sudo apt install ffmpeg

# Runs the build script
./build.sh

The build script might fail with this error:

/usr/bin/ld: AbleChunk.o: in function `AbleChunk::decryptKey(Array<unsigned char> const&)':
/home/alex/Projects/abledecoder/AbleChunk.cpp:24: undefined reference to `EVP_CIPHER_CTX_new'
/usr/bin/ld: /home/alex/Projects/abledecoder/AbleChunk.cpp:26: undefined reference to `EVP_bf_cbc'
...

Then change the library linker flags order in the build script, placing -lcrypto -lssl at the end of the compiling command (see comment in build.sh).

# Runs the abledecoder
./abledecoder my-aif-file.aif my-aif-file-decoded.aif

# Runs the abledecoder on a hierrachy of folder
./rabledecoder my-aif-folder my-aif-folder-decoded

If you want to convert the aif to wav (requires ffmpeg), will create .wav files along the .aif files:

./aif_to_wav my-aif-folder-decoded

You can then listen to the wav, make a selection, and save as m3u playlist, then execute the m3u playlist:

./m3u_copy my-m3u-playlist.m3u my-destination-folder
```bash