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https://github.com/UberGuidoZ/Flipper.git
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138 lines
3.3 KiB
Python
138 lines
3.3 KiB
Python
#!/usr/bin/python
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# flipnoise.py
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#
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# Converts Renoise song files (.xrns) to Flipper Zero song files (.fmf). Pass
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# in the .xrns file as the only argument and flipnoise will unzip it, parse
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# the Song.xml file within and generate a .fmf file you can place on your
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# device with qFlipper.
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#
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# flipnoise will read the song name, artist name and BPM from the Renoise file.
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# Empty lines are filled in with the last note played. The intention here is to
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# primarily make chiptune/keygen-sounding music at a very high BPM (e.g., 500).
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#
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# Note that Flipper Zero only has a single sound channel, so only make one track
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# in your Renoise song.
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#
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# Juan Irming
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# https://amplitudeproblem.com/
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import os
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from os.path import exists
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import shutil
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import sys
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import uuid
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import xml.etree.ElementTree as ET
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import zipfile
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# ------------------------------------------------------------------------------
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# Constants
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SONG_FILENAME = "Song.xml"
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RENOISE_MAGIC = "RenoiseSong"
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APP_NAME = "flipnoise"
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APP_VERSION = 1.0
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# ------------------------------------------------------------------------------
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def invalid_file_exit(filename):
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sys.exit(filename + " is not a valid Renoise song")
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# ------------------------------------------------------------------------------
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def main():
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if len(sys.argv) < 2:
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sys.exit("Usage: " + APP_NAME + " [filename.xrns]")
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else:
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filename = sys.argv[1]
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if not exists(filename):
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invalid_file_exit(filename)
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tmp_dir = "." + APP_NAME + "_tmp/"
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if exists(tmp_dir):
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sys.exit("Temporary directory " + tmp_dir + " already exists")
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os.mkdir(tmp_dir)
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shutil.copy(filename, tmp_dir)
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with zipfile.ZipFile(tmp_dir + filename, 'r') as zip_handle:
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zip_handle.extractall(tmp_dir)
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try:
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renoise = ET.parse(tmp_dir + SONG_FILENAME)
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except:
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invalid_file_exit(filename)
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print(filename)
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renoise_root = renoise.getroot()
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if not renoise_root.tag == RENOISE_MAGIC:
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invalid_file_exit(filename)
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song_name = renoise_root.find("./GlobalSongData/SongName").text
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print("Song name:", song_name)
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artist = renoise_root.find("./GlobalSongData/Artist").text
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print("Artist:", artist)
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bpm = renoise_root.find("./GlobalSongData/BeatsPerMin").text
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print("BPM:", bpm)
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octave = renoise_root.find("./GlobalSongData/Octave").text
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print("Octave:", octave)
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notes = "Notes: "
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for pattern in renoise_root.findall("./PatternPool/Patterns/Pattern"):
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last_index = 0
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last_note = ""
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for line in pattern.findall("Tracks/PatternTrack/Lines/Line"):
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index = int(line.attrib.get("index"))
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index_delta = index - last_index
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if index_delta == 0:
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index_delta = 1
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note = line.find("NoteColumns/NoteColumn/Note").text
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note = note.replace("-", "")
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for i in range(0, index_delta - 1):
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notes += note + ", "
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notes += note + ", "
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last_index = index
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last_note = note
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notes = notes.rstrip(", ")
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print(notes)
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flipper_filename = artist + "-" + song_name + "." + str(uuid.uuid4()) + ".fmf"
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with open(flipper_filename, "w") as file:
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file.write("Filetype: Flipper Music Format\n\n")
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file.write("Version: 0\n\n")
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file.write("BPM: " + bpm + "\n\n")
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file.write("Duration: 16\n\n")
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file.write("Octave: 5\n\n")
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file.write(notes)
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print("Saved", flipper_filename)
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shutil.rmtree(tmp_dir)
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# ------------------------------------------------------------------------------
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if __name__ == "__main__":
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main()
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