159 lines
5.0 KiB
Python
159 lines
5.0 KiB
Python
import os
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import shutil
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from pathlib import Path
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from mutagen.id3 import ID3, TBPM, ID3NoHeaderError
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from datetime import datetime
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from collections import defaultdict
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import configparser
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import sys
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import librosa
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GROUP_SIZE = 5
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def load_config():
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config_path = Path("config.ini")
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default_config_path = Path("def_config.ini")
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if not config_path.exists():
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if default_config_path.exists():
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shutil.copy(default_config_path, config_path)
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print("config.ini created from def_config.ini with default settings.")
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else:
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print("Error: def_config.ini not found! Please create it and rerun.")
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sys.exit(1)
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default_config = configparser.ConfigParser()
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default_config.read(default_config_path)
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user_config = configparser.ConfigParser()
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user_config.read(config_path)
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merged_config = configparser.ConfigParser()
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merged_config.read_dict(default_config)
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merged_config.read_dict(user_config)
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return merged_config
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def analyze_bpm_librosa(file_path):
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try:
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y, sr = librosa.load(file_path, mono=True)
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tempo, _ = librosa.beat.beat_track(y=y, sr=sr)
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return int(round(float(tempo)))
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except Exception as e:
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print(f"Error analyzing BPM for {file_path.name}: {e}")
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return None
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def write_bpm_tag(file_path, bpm):
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try:
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try:
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tags = ID3(file_path)
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except ID3NoHeaderError:
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tags = ID3()
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tags.delall("TBPM")
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tags.add(TBPM(encoding=3, text=str(bpm)))
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tags.save(file_path)
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print(f"Written BPM={bpm} to {file_path.name}")
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except Exception as e:
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print(f"Failed to write BPM tag for {file_path.name}: {e}")
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def get_bpm(file_path):
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try:
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tags = ID3(file_path)
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bpm_tag = tags.get("TBPM")
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if bpm_tag:
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return int(float(bpm_tag.text[0]))
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except Exception:
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pass
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return None
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def split_evenly(lst, n):
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k, m = divmod(len(lst), n)
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return [lst[i*k + min(i, m):(i+1)*k + min(i+1, m)] for i in range(n)]
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def main():
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config = load_config()
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CD_SIZE = config.getint("Settings", "SplitFolderMB") * 1024 * 1024
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bWriteNonPresentBPM = config.getboolean("Settings", "bWriteNonPresentBPM")
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bCheckAllTracksBPM = config.getboolean("Settings", "bCheckAllTracksBPM")
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run_date = datetime.now().strftime("%Y-%m-%d_%H%M%S")
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source_input = input("Drag and drop your music folder here, then press Enter: ").strip().strip('"')
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source_media_path = Path(source_input)
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if not source_media_path.exists() or not source_media_path.is_dir():
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print(f"Error: {source_media_path} is not a valid directory.")
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sys.exit(1)
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all_tracks = []
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for file in source_media_path.rglob("*.mp3"):
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bpm = get_bpm(file)
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if bpm is None and bWriteNonPresentBPM:
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bpm = analyze_bpm_librosa(file)
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if bpm is not None:
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write_bpm_tag(file, bpm)
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elif bpm is not None and bCheckAllTracksBPM:
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new_bpm = analyze_bpm_librosa(file)
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if new_bpm is not None and new_bpm != bpm:
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bpm = new_bpm
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write_bpm_tag(file, bpm)
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size = file.stat().st_size
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if bpm is None:
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bpm_range = "[Unknown BPM]"
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else:
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bpm_range = f"{(bpm // GROUP_SIZE) * GROUP_SIZE}-to-{((bpm // GROUP_SIZE) * GROUP_SIZE) + GROUP_SIZE - 1}"
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all_tracks.append({"file": file, "size": size, "bpm_range": bpm_range})
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if not all_tracks:
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print("No MP3 files found.")
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sys.exit(0)
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parent = source_media_path.parent
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folder_name = source_media_path.name
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dest_media_path = parent / f"[CDs-{run_date}]{folder_name}"
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dest_media_path.mkdir(parents=True, exist_ok=True)
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total_size = sum(t["size"] for t in all_tracks)
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num_cds = max(1, (total_size + CD_SIZE - 1) // CD_SIZE)
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print(f"Total size: {total_size / 1024**2:.2f} MB, splitting into {num_cds} CDs")
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bpm_groups = defaultdict(list)
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for track in all_tracks:
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bpm_groups[track["bpm_range"]].append(track)
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for bpm_range in bpm_groups:
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bpm_groups[bpm_range].sort(key=lambda x: x["file"].name)
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bpm_chunks = {}
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for bpm_range, tracks in bpm_groups.items():
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bpm_chunks[bpm_range] = split_evenly(tracks, num_cds)
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cd_contents = [[] for _ in range(num_cds)]
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for bpm_range in bpm_chunks:
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for i, chunk in enumerate(bpm_chunks[bpm_range]):
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cd_contents[i].extend(chunk)
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for i, tracks in enumerate(cd_contents, start=1):
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cd_folder = dest_media_path / f"CD-{i:02}"
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cd_folder.mkdir(parents=True, exist_ok=True)
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size_accum = 0
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for track in tracks:
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bpm_subfolder = cd_folder / track["bpm_range"]
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bpm_subfolder.mkdir(parents=True, exist_ok=True)
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shutil.copy(track["file"], bpm_subfolder / track["file"].name)
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size_accum += track["size"]
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print(f"[WRITE] CD-{i:02}: {len(tracks)} tracks, approx {size_accum / 1024**2:.2f} MB")
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print("\n✓ Done!")
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if __name__ == "__main__":
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main()
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