dhgwilliam revised this gist 3 hours ago. Go to revision
1 file changed, 0 insertions, 0 deletions
Empty file
David Gwilliam revised this gist 3 hours ago. Go to revision
1 file changed, 337 insertions
razzmatazz(file created)
| @@ -0,0 +1,337 @@ | |||
| 1 | + | #!/usr/bin/env python3 | |
| 2 | + | """Fix audio files to meet Razzmatazz WAV requirements.""" | |
| 3 | + | ||
| 4 | + | import json | |
| 5 | + | import os | |
| 6 | + | import re | |
| 7 | + | import shutil | |
| 8 | + | import subprocess | |
| 9 | + | import sys | |
| 10 | + | import time | |
| 11 | + | import wave | |
| 12 | + | from collections import defaultdict | |
| 13 | + | from shutil import get_terminal_size | |
| 14 | + | ||
| 15 | + | FORBIDDEN_CHARS = re.compile(r'["/\\?*<>:|]') | |
| 16 | + | ALLOWED_BIT_DEPTHS = {16, 24, 32} | |
| 17 | + | ALLOWED_CHANNELS = {1, 2} | |
| 18 | + | NATIVE_SAMPLE_RATE = 48000 | |
| 19 | + | MAX_PATH_LENGTH = 255 | |
| 20 | + | AUDIO_EXTENSIONS = {'.wav', '.mp3', '.flac', '.ogg', '.aiff', '.aif', '.wma', '.m4a', '.aac', '.ape', '.opus'} | |
| 21 | + | ||
| 22 | + | SAMPLE_FMT_TO_BITS = { | |
| 23 | + | 's16': 16, 's16le': 16, 's16be': 16, 'u16': 16, | |
| 24 | + | 's32': 32, 's32le': 32, 's32be': 32, | |
| 25 | + | 's24': 24, 's24le': 24, 's24be': 24, | |
| 26 | + | 'flt': 32, 'fltle': 32, 'fltbe': 32, | |
| 27 | + | 'dbl': 64, | |
| 28 | + | 'u8': 8, 's8': 8, | |
| 29 | + | } | |
| 30 | + | ||
| 31 | + | ||
| 32 | + | def ffprobe(path): | |
| 33 | + | try: | |
| 34 | + | r = subprocess.run( | |
| 35 | + | ['ffprobe', '-v', 'quiet', '-print_format', 'json', | |
| 36 | + | '-show_streams', path], | |
| 37 | + | capture_output=True, text=True, timeout=30) | |
| 38 | + | if r.returncode != 0: | |
| 39 | + | return None | |
| 40 | + | data = json.loads(r.stdout) | |
| 41 | + | for s in data.get('streams', []): | |
| 42 | + | if s.get('codec_type') == 'audio': | |
| 43 | + | return s | |
| 44 | + | except Exception: | |
| 45 | + | return None | |
| 46 | + | return None | |
| 47 | + | ||
| 48 | + | ||
| 49 | + | def check_file(path): | |
| 50 | + | issues = [] | |
| 51 | + | ||
| 52 | + | if len(path) > MAX_PATH_LENGTH: | |
| 53 | + | issues.append(f"path length {len(path)} > {MAX_PATH_LENGTH}") | |
| 54 | + | ||
| 55 | + | basename = os.path.basename(path) | |
| 56 | + | if FORBIDDEN_CHARS.search(basename): | |
| 57 | + | issues.append("filename has forbidden characters") | |
| 58 | + | ||
| 59 | + | ext = os.path.splitext(path)[1].lower() | |
| 60 | + | ||
| 61 | + | if ext == '.wav': | |
| 62 | + | try: | |
| 63 | + | with wave.open(path, 'rb') as wf: | |
| 64 | + | params = wf.getparams() | |
| 65 | + | ch = params.nchannels | |
| 66 | + | bd = params.sampwidth * 8 | |
| 67 | + | sr = params.framerate | |
| 68 | + | if ch not in ALLOWED_CHANNELS: | |
| 69 | + | issues.append(f"{ch} channels (need 1 or 2)") | |
| 70 | + | if bd not in ALLOWED_BIT_DEPTHS: | |
| 71 | + | issues.append(f"{bd}-bit (need 16, 24, or 32)") | |
| 72 | + | if sr != NATIVE_SAMPLE_RATE: | |
| 73 | + | issues.append(f"{sr} Hz sample rate (native is {NATIVE_SAMPLE_RATE})") | |
| 74 | + | except Exception: | |
| 75 | + | issues.append("not a valid WAV or unreadable") | |
| 76 | + | else: | |
| 77 | + | issues.append(f"not WAV ({ext})") | |
| 78 | + | info = ffprobe(path) | |
| 79 | + | if info is None: | |
| 80 | + | issues.append("could not read audio info") | |
| 81 | + | else: | |
| 82 | + | ch = info.get('channels', 0) | |
| 83 | + | sr = info.get('sample_rate', '?') | |
| 84 | + | fmt = info.get('sample_fmt', '?') | |
| 85 | + | bd = SAMPLE_FMT_TO_BITS.get(fmt, '?') | |
| 86 | + | if ch not in ALLOWED_CHANNELS: | |
| 87 | + | issues.append(f"{ch} channels (need 1 or 2)") | |
| 88 | + | if isinstance(bd, int) and bd not in ALLOWED_BIT_DEPTHS: | |
| 89 | + | issues.append(f"{bd}-bit (need 16, 24, or 32)") | |
| 90 | + | if sr not in (None, '?') and int(sr) != NATIVE_SAMPLE_RATE: | |
| 91 | + | issues.append(f"{sr} Hz sample rate (native is {NATIVE_SAMPLE_RATE})") | |
| 92 | + | ||
| 93 | + | return issues | |
| 94 | + | ||
| 95 | + | ||
| 96 | + | def fix_filename(name): | |
| 97 | + | root, ext = os.path.splitext(name) | |
| 98 | + | root = FORBIDDEN_CHARS.sub('_', root) | |
| 99 | + | root = re.sub(r'_+', '_', root).strip('_') | |
| 100 | + | root = root or 'fixed' | |
| 101 | + | return root + '.wav' | |
| 102 | + | ||
| 103 | + | ||
| 104 | + | def process_file(path, outpath, quiet=False): | |
| 105 | + | rel = os.path.relpath(path) | |
| 106 | + | ||
| 107 | + | issues = check_file(path) | |
| 108 | + | ||
| 109 | + | ext = os.path.splitext(path)[1].lower() | |
| 110 | + | is_wav = (ext == '.wav') | |
| 111 | + | ||
| 112 | + | os.makedirs(os.path.dirname(outpath) or '.', exist_ok=True) | |
| 113 | + | ||
| 114 | + | clean_name = os.path.basename(outpath) | |
| 115 | + | name_changed = (os.path.basename(path) != clean_name) | |
| 116 | + | ||
| 117 | + | if is_wav and not issues and not name_changed: | |
| 118 | + | shutil.copy2(path, outpath) | |
| 119 | + | if not quiet: | |
| 120 | + | print(f"OK {rel}") | |
| 121 | + | return True | |
| 122 | + | ||
| 123 | + | if not quiet: | |
| 124 | + | parts = issues[:] | |
| 125 | + | if name_changed: | |
| 126 | + | parts.append(f"filename → {clean_name}") | |
| 127 | + | print(f"FIX {rel}: {', '.join(parts)}") | |
| 128 | + | ||
| 129 | + | if is_wav: | |
| 130 | + | try: | |
| 131 | + | with wave.open(path, 'rb') as wf: | |
| 132 | + | params = wf.getparams() | |
| 133 | + | ch = params.nchannels | |
| 134 | + | bd = params.sampwidth * 8 | |
| 135 | + | sr = params.framerate | |
| 136 | + | except Exception: | |
| 137 | + | if not quiet: | |
| 138 | + | print(f"FAIL {rel}: cannot parse WAV header, copying as-is") | |
| 139 | + | shutil.copy2(path, outpath) | |
| 140 | + | return False | |
| 141 | + | else: | |
| 142 | + | info = ffprobe(path) | |
| 143 | + | if info is None: | |
| 144 | + | if not quiet: | |
| 145 | + | print(f"FAIL {rel}: cannot read audio info, copying as-is") | |
| 146 | + | shutil.copy2(path, outpath) | |
| 147 | + | return False | |
| 148 | + | ch = info.get('channels', 2) | |
| 149 | + | sr = int(info.get('sample_rate', NATIVE_SAMPLE_RATE)) | |
| 150 | + | fmt = info.get('sample_fmt', 's16') | |
| 151 | + | bd = SAMPLE_FMT_TO_BITS.get(fmt, 16) | |
| 152 | + | ||
| 153 | + | target_ch = ch if ch in ALLOWED_CHANNELS else 2 | |
| 154 | + | target_bd = bd if bd in ALLOWED_BIT_DEPTHS else 16 | |
| 155 | + | acodec = {16: 'pcm_s16le', 24: 'pcm_s24le', 32: 'pcm_s32le'}[target_bd] | |
| 156 | + | ||
| 157 | + | cmd = ['ffmpeg', '-y', '-i', path] | |
| 158 | + | ||
| 159 | + | needs_recode = (target_bd != bd) or (sr != NATIVE_SAMPLE_RATE) or (target_ch != ch) or (not is_wav) | |
| 160 | + | ||
| 161 | + | if needs_recode: | |
| 162 | + | if target_ch != ch: | |
| 163 | + | cmd += ['-ac', str(target_ch)] | |
| 164 | + | cmd += ['-acodec', acodec] | |
| 165 | + | if sr != NATIVE_SAMPLE_RATE: | |
| 166 | + | cmd += ['-ar', str(NATIVE_SAMPLE_RATE)] | |
| 167 | + | cmd += ['-af', 'aresample=resampler=soxr'] | |
| 168 | + | else: | |
| 169 | + | cmd += ['-c', 'copy'] | |
| 170 | + | cmd.append(outpath) | |
| 171 | + | ||
| 172 | + | result = subprocess.run(cmd, capture_output=True, text=True) | |
| 173 | + | if result.returncode != 0: | |
| 174 | + | if not quiet: | |
| 175 | + | print(f"FAIL {rel}: ffmpeg error — {result.stderr.strip()}") | |
| 176 | + | return False | |
| 177 | + | return True | |
| 178 | + | ||
| 179 | + | ||
| 180 | + | class ProgressBar: | |
| 181 | + | def __init__(self, total): | |
| 182 | + | self.total = total | |
| 183 | + | self.current = 0 | |
| 184 | + | self.success = 0 | |
| 185 | + | self.failed = 0 | |
| 186 | + | self.start_time = time.time() | |
| 187 | + | self.last_draw = 0 | |
| 188 | + | ||
| 189 | + | def update(self, n=1, success=True): | |
| 190 | + | self.current += n | |
| 191 | + | if success: | |
| 192 | + | self.success += 1 | |
| 193 | + | else: | |
| 194 | + | self.failed += 1 | |
| 195 | + | self._draw() | |
| 196 | + | ||
| 197 | + | def _draw(self): | |
| 198 | + | now = time.time() | |
| 199 | + | if now - self.last_draw < 0.1: | |
| 200 | + | return | |
| 201 | + | self.last_draw = now | |
| 202 | + | ||
| 203 | + | cols, _ = get_terminal_size((80, 24)) | |
| 204 | + | elapsed = now - self.start_time | |
| 205 | + | ||
| 206 | + | pct = self.current / self.total if self.total else 0 | |
| 207 | + | bar_w = cols - 30 | |
| 208 | + | if bar_w < 10: | |
| 209 | + | bar_w = 10 | |
| 210 | + | filled = int(bar_w * pct) | |
| 211 | + | bar = '[' + '=' * filled + '>' * min(1, bar_w - filled) + '.' * (bar_w - filled - min(1, bar_w - filled)) + ']' | |
| 212 | + | ||
| 213 | + | eta = (elapsed / self.current * (self.total - self.current)) if self.current > 0 else 0 | |
| 214 | + | ||
| 215 | + | line = f"\r{bar} {pct * 100:5.1f}% {self.current}/{self.total} ETA {eta:.0f}s" | |
| 216 | + | sys.stdout.write(line[:cols]) | |
| 217 | + | sys.stdout.flush() | |
| 218 | + | ||
| 219 | + | def done(self): | |
| 220 | + | elapsed = time.time() - self.start_time | |
| 221 | + | line = f"\r{' ' * get_terminal_size((80, 24)).columns}\r" | |
| 222 | + | sys.stdout.write(line) | |
| 223 | + | sys.stdout.flush() | |
| 224 | + | print(f"Done — {self.success} ok, {self.failed} failed ({elapsed:.1f}s)") | |
| 225 | + | ||
| 226 | + | ||
| 227 | + | def main(): | |
| 228 | + | import argparse | |
| 229 | + | parser = argparse.ArgumentParser(description='Fix audio files to valid Razzmatazz WAVs.') | |
| 230 | + | parser.add_argument('paths', nargs='+', help='Audio files or directories') | |
| 231 | + | parser.add_argument('--out', '-o', default='fixed_wavs', help='Output directory (default: fixed_wavs)') | |
| 232 | + | parser.add_argument('--dry-run', '-n', action='store_true', help='Preview without converting') | |
| 233 | + | parser.add_argument('--no-progress', '-P', action='store_true', help='Disable progress bar (one line per file)') | |
| 234 | + | args = parser.parse_args() | |
| 235 | + | ||
| 236 | + | files = [] | |
| 237 | + | for p in args.paths: | |
| 238 | + | if os.path.isdir(p): | |
| 239 | + | for root, _, filenames in os.walk(p): | |
| 240 | + | for f in filenames: | |
| 241 | + | if os.path.splitext(f)[1].lower() in AUDIO_EXTENSIONS: | |
| 242 | + | files.append(os.path.join(root, f)) | |
| 243 | + | else: | |
| 244 | + | files.append(p) | |
| 245 | + | ||
| 246 | + | if not files: | |
| 247 | + | print("No supported audio files found.") | |
| 248 | + | print(f"Extensions: {', '.join(sorted(AUDIO_EXTENSIONS))}") | |
| 249 | + | sys.exit(0) | |
| 250 | + | ||
| 251 | + | files.sort() | |
| 252 | + | ||
| 253 | + | # Resolve output paths | |
| 254 | + | out_paths = [] | |
| 255 | + | for path in files: | |
| 256 | + | cwd = os.getcwd() | |
| 257 | + | try: | |
| 258 | + | rel_to_cwd = os.path.relpath(path, cwd) | |
| 259 | + | subdir = '' if rel_to_cwd.startswith('..') else os.path.dirname(rel_to_cwd) | |
| 260 | + | except ValueError: | |
| 261 | + | subdir = '' | |
| 262 | + | clean = fix_filename(os.path.basename(path)) | |
| 263 | + | d = os.path.join(args.out, subdir) if subdir else args.out | |
| 264 | + | out_paths.append(os.path.join(d, clean)) | |
| 265 | + | ||
| 266 | + | used = defaultdict(int) | |
| 267 | + | resolved = {} | |
| 268 | + | for p, path in zip(out_paths, files): | |
| 269 | + | if used[p] > 0: | |
| 270 | + | root, ext = os.path.splitext(p) | |
| 271 | + | p = f"{root}_{used[p]}{ext}" | |
| 272 | + | used[p] += 1 | |
| 273 | + | resolved[path] = p | |
| 274 | + | while True: | |
| 275 | + | np = os.path.normpath(p) | |
| 276 | + | cn = os.path.basename(np) | |
| 277 | + | if len(cn) > 255: | |
| 278 | + | root, ext = os.path.splitext(cn) | |
| 279 | + | cn = root[:255 - len(ext)] + ext | |
| 280 | + | if len(np) > 255: | |
| 281 | + | d = os.path.dirname(np) | |
| 282 | + | available = 255 - len(d) - 1 | |
| 283 | + | root, ext = os.path.splitext(cn) | |
| 284 | + | cn = root[:available - len(ext)] + ext | |
| 285 | + | resolved[path] = os.path.join(os.path.dirname(np), cn) | |
| 286 | + | break | |
| 287 | + | ||
| 288 | + | # Scan phase | |
| 289 | + | use_progress = not args.dry_run and not args.no_progress | |
| 290 | + | if not use_progress: | |
| 291 | + | # Original mode: one line per file | |
| 292 | + | ok = failed = 0 | |
| 293 | + | for path in files: | |
| 294 | + | if process_file(path, resolved[path], quiet=False): | |
| 295 | + | ok += 1 | |
| 296 | + | else: | |
| 297 | + | failed += 1 | |
| 298 | + | print(f"\n{ok} processed, {failed} failed") | |
| 299 | + | sys.exit(1 if failed else 0) | |
| 300 | + | ||
| 301 | + | # --- Progress bar mode --- | |
| 302 | + | n_total = len(files) | |
| 303 | + | ||
| 304 | + | # Scan: check all files quickly | |
| 305 | + | print(f"Scanning {n_total} files...") | |
| 306 | + | ok_count = fix_count = skip_count = 0 | |
| 307 | + | for path in files: | |
| 308 | + | issues = check_file(path) | |
| 309 | + | clean_name = os.path.basename(resolved[path]) | |
| 310 | + | name_changed = (os.path.basename(path) != clean_name) | |
| 311 | + | ext = os.path.splitext(path)[1].lower() | |
| 312 | + | if issues or name_changed or ext != '.wav': | |
| 313 | + | fix_count += 1 | |
| 314 | + | else: | |
| 315 | + | ok_count += 1 | |
| 316 | + | ||
| 317 | + | print(f" {ok_count} already valid, {fix_count} need processing") | |
| 318 | + | if fix_count == 0: | |
| 319 | + | # Just copy everything | |
| 320 | + | bar = ProgressBar(n_total) | |
| 321 | + | for path in files: | |
| 322 | + | ok = process_file(path, resolved[path], quiet=True) | |
| 323 | + | bar.update(success=ok) | |
| 324 | + | bar.done() | |
| 325 | + | sys.exit(0) | |
| 326 | + | ||
| 327 | + | # Process with progress bar | |
| 328 | + | bar = ProgressBar(n_total) | |
| 329 | + | for path in files: | |
| 330 | + | ok = process_file(path, resolved[path], quiet=True) | |
| 331 | + | bar.update(success=ok) | |
| 332 | + | bar.done() | |
| 333 | + | sys.exit(1 if bar.failed else 0) | |
| 334 | + | ||
| 335 | + | ||
| 336 | + | if __name__ == '__main__': | |
| 337 | + | main() | |
Newer
Older