2 ### -*- mode: python; coding: utf-8 -*-
4 from contextlib import contextmanager
8 import subprocess as SP
11 class ExpectedError (Exception): pass
20 def filter(value, func = None, dflt = None):
21 if value is None: return dflt
22 elif func is None: return value
23 else: return func(value)
26 if not cond: raise ExpectedError(msg)
28 def lookup(dict, key, msg):
30 except KeyError: raise ExpectedError(msg)
32 def forget(dict, key):
37 if not s.isdigit(): raise ExpectedError("bad integer `%s'" % s)
43 me._i, me._n = 0, len(s)
45 s, i, n = me._s, me._i, me._n
47 if not s[i].isspace(): return i
52 begin = i = me._wordstart()
53 if begin < 0: return None
54 while i < n and not s[i].isspace(): i += 1
59 begin = me._wordstart()
60 if begin < 0: return None
61 else: return s[begin:].rstrip()
63 def program_output(*args, **kw):
64 try: return SP.check_output(*args, **kw)
65 except SP.CalledProcessError as e:
66 raise ExpectedError("program `%s' failed with code %d" %
67 (e.cmd, e.returncode))
69 URL_SAFE_P = 256*[False]
71 b"ABCDEFGHIJKLMNOPQRSTUVWXYZ" \
72 b"abcdefghijklmnopqrstuvwxyz" \
73 b"0123456789" b"!$%-.,/":
76 return "".join((URL_SAFE_P[ch] and chr(ch) or "%%%02x" % ch
77 for ch in s.encode("UTF-8")))
79 PROG = OS.path.basename(SYS.argv[0])
81 class BaseLocation (object):
83 SYS.stderr.write("%s: %s%s\n" % (PROG, me._loc(), exc))
85 class DummyLocation (BaseLocation):
86 def _loc(me): return ""
88 class FileLocation (BaseLocation):
89 def __init__(me, fn, lno = 1): me._fn, me._lno = fn, lno
90 def _loc(me): return "%s:%d: " % (me._fn, me._lno)
91 def stepline(me): me._lno += 1
95 class Source (object):
97 TITLEP = CHAPTERP = False
101 me.used_titles = dict()
102 me.used_chapters = set()
104 def _duration(me, title, start_chapter, end_chapter):
106 def url_and_duration(me, title = None,
107 start_chapter = None, end_chapter = None):
109 if me.TITLEP: raise ExpectedError("missing title number")
110 if start_chapter is not None or end_chapter is not None:
111 raise ExpectedError("can't specify chapter without title")
114 raise ExpectedError("can't specify title with `%s'" % me.fn)
115 elif start_chapter is None:
116 if end_chapter is not None:
117 raise ExpectedError("can't specify end chapter without start chapter")
118 suffix = "#%d" % title
119 elif not me.CHAPTERP:
120 raise ExpectedError("can't specify chapter with `%s'" % me.fn)
121 elif end_chapter is None:
122 suffix = "#%d:%d" % (title, start_chapter)
124 suffix = "#%d:%d-%d:%d" % (title, start_chapter, title, end_chapter - 1)
126 duration = me._duration(title, start_chapter, end_chapter)
128 if end_chapter is not None:
129 keys = [(title, ch) for ch in range(start_chapter, end_chapter)]
130 set = me.used_chapters
132 keys, set = [title], me.used_titles
136 raise ExpectedError("`%s' already used" % me.fn)
137 elif end_chapter is None:
138 raise ExpectedError("`%s' title %d already used" % (me.fn, title))
140 raise ExpectedError("`%s' title %d chapter %d already used" %
141 (me.fn, title, k[1]))
142 if end_chapter is not None:
143 for ch in range(start_chapter, end_chapter):
144 me.used_chapters.add((title, ch))
145 return me.PREFIX + ROOT + urlencode(me.fn) + suffix, duration
147 class VideoDisc (Source):
149 TITLEP = CHAPTERP = True
151 def __init__(me, fn, *args, **kw):
152 super().__init__(fn, *args, **kw)
155 def _duration(me, title, start_chapter, end_chapter):
156 path = OS.path.join(ROOT, me.fn)
157 ntitle = int(program_output(["dvd-info", path, "titles"]))
158 if not 1 <= title <= ntitle:
159 raise ExpectedError("bad title %d for `%s': must be in 1 .. %d" %
160 (title, me.fn, ntitle))
161 if start_chapter is None:
162 durq = "duration:%d" % title
164 nch = int(program_output(["dvd-info", path, "chapters:%d" % title]))
165 if end_chapter is None: end_chapter = nch
166 else: end_chapter -= 1
167 if not 1 <= start_chapter <= end_chapter <= nch:
168 raise ExpectedError("bad chapter range %d .. %d for `%s' title %d: "
169 "must be in 1 .. %d" %
170 (start_chapter, end_chapter, me.fn, title, nch))
171 durq = "duration:%d.%d-%d" % (title, start_chapter, end_chapter)
172 duration = int(program_output(["dvd-info", path, durq]))
175 class VideoSeason (object):
176 def __init__(me, i, title):
180 def set_episode_disc(me, i, disc):
182 raise ExpectedError("season %d episode %d already taken" % (me.i, i))
183 me.episodes[i] = disc; disc.neps += 1
185 def match_group(m, *groups, dflt = None, mustp = False):
188 except IndexError: continue
189 if s is not None: return s
190 if mustp: raise ValueError("no match found")
193 class VideoDir (object):
195 _R_ISO_PRE = list(map(lambda pats:
197 RX.compile("^" + pat + r"\.iso$", RX.X),
199 [[r""" S (?P<si> \d+) \. \ (?P<stitle> .*) — (?: D \d+ \. \ )?
201 r""" S (?P<si> \d+) (?: D \d+)? \. \ (?P<epex> .*) """,
202 r""" S (?P<si> \d+) \. \ (?P<epex> E \d+ .*) """,
203 r""" S (?P<si> \d+) (?P<epex> E \d+) \. \ .* """],
204 [r""" (?P<si> \d+) [A-Z]? \. \ (?P<stitle> .*) — (?P<epex> .*) """],
205 [r""" \d+ \. \ (?P<epex> [ES] \d+ .*) """],
206 [r""" (?P<epnum> \d+ ) \. \ .* """]]))
208 _R_ISO_EP = RX.compile(r""" ^
209 (?: S (?P<si> \d+) \ )?
210 E (?P<ei> \d+) (?: – (?P<ej> \d+))? $
213 def __init__(me, dir):
215 fns = OS.listdir(OS.path.join(ROOT, dir))
219 styles = me._R_ISO_PRE
221 path = OS.path.join(dir, fn)
222 if not fn.endswith(".iso"): continue
223 #print(";; `%s'" % path, file = SYS.stderr)
227 if m: styles = [sty]; break
232 #print(";;\tignored (regex mismatch)", file = SYS.stderr)
235 si = filter(match_group(m, "si"), int)
236 stitle = match_group(m, "stitle")
238 check(si is not None or stitle is None,
239 "explicit season title without number in `%s'" % fn)
241 if season is None or si != season.i:
242 check(season is None or si == season.i + 1,
244 (si, season is None and -1 or season.i + 1))
245 check(si not in seasons, "season %d already seen" % si)
246 seasons[si] = season = VideoSeason(si, stitle)
248 check(stitle == season.title,
249 "season title `%s' /= `%s'" % (stitle, season.title))
251 disc = VideoDisc(path)
253 any, bad = False, False
254 epnum = match_group(m, "epnum")
255 if epnum is not None: eplist = ["E" + epnum]
256 else: eplist = match_group(m, "epex", mustp = True).split(", ")
257 for eprange in eplist:
258 mm = me._R_ISO_EP.match(eprange)
260 #print(";;\t`%s'?" % eprange, file = SYS.stderr)
262 if not any: any = True
263 i = filter(mm.group("si"), int)
266 except KeyError: ts = seasons[i] = VideoSeason(i, None)
268 ts = season = seasons[1] = VideoSeason(1, None)
269 start = filter(mm.group("ei"), int)
270 end = filter(mm.group("ej"), int, start)
271 for k in range(start, end + 1):
272 ts.set_episode_disc(k, disc)
273 #print(";;\tepisode %d.%d" % (ts.i, k), file = SYS.stderr)
275 #print(";;\tignored", file = SYS.stderr)
278 raise ExpectedError("bad ep list in `%s'", fn)
281 class AudioDisc (Source):
283 TITLEP = CHAPTERP = False
285 def _duration(me, title, start_chapter, end_chaptwr):
286 out = program_output(["metaflac",
287 "--show-total-samples", "--show-sample-rate",
288 OS.path.join(ROOT, me.fn)])
289 nsamples, hz = map(float, out.split())
290 return int(nsamples/hz)
292 class AudioEpisode (AudioDisc):
293 def __init__(me, fn, i, *args, **kw):
294 super().__init__(fn, *args, **kw)
297 class AudioDir (object):
299 _R_FLAC = RX.compile(r""" ^
305 def __init__(me, dir):
307 fns = OS.listdir(OS.path.join(ROOT, dir))
312 path = OS.path.join(dir, fn)
313 if not fn.endswith(".flac"): continue
314 m = me._R_FLAC.match(fn)
316 i = filter(m.group(1), int)
318 check(i == last_i + 1, "episode %d /= %d" % (i, last_i + 1))
319 episodes[i] = AudioEpisode(path, i)
321 me.episodes = episodes
323 class Chapter (object):
324 def __init__(me, episode, title, i):
325 me.title, me.i = title, i
326 me.url, me.duration = \
327 episode.source.url_and_duration(episode.tno, i, i + 1)
329 class Episode (object):
330 def __init__(me, season, i, neps, title, src, tno = None,
331 startch = None, endch = None):
333 me.i, me.neps, me.title = i, neps, title
335 me.source, me.tno = src, tno
336 me.url, me.duration = src.url_and_duration(tno, startch, endch)
337 def add_chapter(me, title, j):
338 ch = Chapter(me, title, j)
339 me.chapters.append(ch)
342 return me.season._eplabel(me.i, me.neps, me.title)
344 class BaseSeason (object):
345 def __init__(me, series, implicitp = False):
348 me.implicitp = implicitp
349 me.ep_i, episodes = 1, []
350 def add_episode(me, j, neps, title, src, tno, startch, endch):
351 ep = Episode(me, j, neps, title, src, tno, startch, endch)
352 me.episodes.append(ep)
353 src.nuses += neps; me.ep_i += neps
355 def _epnames(me, i, neps):
356 playlist = me.series.playlist
357 if neps == 1: return playlist.epname, "%d" % i
358 elif neps == 2: return playlist.epnames, "%d, %d" % (i, i + 1)
359 else: return playlist.epnames, "%d–%d" % (i, i + neps - 1)
361 class Season (BaseSeason):
362 def __init__(me, series, title, i, *args, **kw):
363 super().__init__(series, *args, **kw)
364 me.title, me.i = title, i
365 def _eplabel(me, i, neps, title):
366 epname, epn = me._epnames(i, neps)
368 if me.implicitp: label = "%s %s" % (epname, epn)
369 elif me.title is None: label = "%s %d.%s" % (epname, me.i, epn)
370 else: label = "%s—%s %s" % (me.title, epname, epn)
372 if me.implicitp: label = "%s. %s" % (epn, title)
373 elif me.title is None: label = "%d.%s. %s" % (me.i, epn, title)
374 else: label = "%s—%s. %s" % (me.title, epn, title)
377 class MovieSeason (BaseSeason):
378 def __init__(me, series, title, *args, **kw):
379 super().__init__(series, *args, **kw)
382 def add_episode(me, j, neps, title, src, tno, startch, endch):
383 if me.title is None and title is None:
384 raise ExpectedError("movie or movie season must have a title")
385 return super().add_episode(j, neps, title, src, tno, startch, endch)
386 def _eplabel(me, i, neps, title):
390 epname, epn = me._epnames(i, neps)
391 label = "%s—%s %s" % (me.title, epname, epn)
393 label = "%s—%s" % (me.title, title)
396 class Series (object):
397 def __init__(me, playlist, name, title = None, wantedp = True):
398 me.playlist = playlist
399 me.name, me.title = name, title
402 def _add_season(me, season):
403 me.cur_season = season
404 def add_season(me, title, i, implicitp = False):
405 me._add_season(Season(me, title, i, implicitp))
406 def add_movies(me, title = None):
407 me._add_season(MovieSeason(me, title))
408 def ensure_season(me):
409 if me.cur_season is None: me.add_season(None, 1, implicitp = True)
414 class Playlist (object):
418 me.epname, me.epnames = "Episode", "Episodes"
420 def add_episode(me, episode):
421 me.episodes.append(episode)
424 me.seasons.append(me.episodes)
428 for season in me.seasons:
432 if me.nseries > 1: label = ep.season.series.title + " " + label
434 f.write("#EXTINF:%d,,%s\n%s\n" % (ep.duration, label, ep.url))
436 for ch in ep.chapters:
437 f.write("#EXTINF:%d,,%s: %s\n%s\n" %
438 (ch.duration, label, ch.title, ch.url))
440 DEFAULT_EXPVAR = 0.05
441 R_DURMULT = RX.compile(r""" ^
444 R_DUR = RX.compile(r""" ^
445 (?: (?: (\d+) :)? (\d+) :)? (\d+)
446 (?: / (\d+ (?: \. \d+)?) \%)?
448 def parse_duration(s, base = None, basevar = DEFAULT_EXPVAR):
450 m = R_DURMULT.match(s)
451 if m is not None: return base*float(m.group(1)), basevar
453 if not m: raise ExpectedError("invalid duration spec `%s'" % s)
454 hr, min, sec = map(lambda g: filter(m.group(g), int, 0), [1, 2, 3])
455 var = filter(m.group(4), lambda x: float(x)/100.0)
456 if var is None: var = DEFAULT_EXPVAR
457 return 3600*hr + 60*min + sec, var
458 def format_duration(d):
459 if d >= 3600: return "%d:%02d:%02d" % (d//3600, (d//60)%60, d%60)
460 elif d >= 60: return "%d:%02d" % (d//60, d%60)
461 else: return "%d s" % d
467 class EpisodeListParser (object):
469 def __init__(me, series_wanted = None, chapters_wanted_p = False):
471 me._cur_episode = me._cur_chapter = None
472 me._series = {}; me._vdirs = {}; me._audirs = {}; me._isos = {}
473 me._series_wanted = series_wanted
474 me._chaptersp = chapters_wanted_p
475 me._explen, me._expvar = None, DEFAULT_EXPVAR
476 if series_wanted is None: me._mode = MODE_UNSET
477 else: me._mode = MODE_MULTI
479 def _bad_keyval(me, cmd, k, v):
480 raise ExpectedError("invalid `!%s' option `%s'" %
481 (cmd, v if k is None else k))
483 def _keyvals(me, opts):
485 for kv in opts.split(","):
486 try: sep = kv.index("=")
487 except ValueError: yield None, kv
488 else: yield kv[:sep], kv[sep + 1:]
490 def _set_mode(me, mode):
491 if me._mode == MODE_UNSET:
493 elif me._mode != mode:
494 raise ExpectedError("inconsistent single-/multi-series usage")
496 def _get_series(me, name):
498 me._set_mode(MODE_SINGLE)
499 try: series = me._series[None]
501 series = me._series[None] = Series(me._pl, None)
504 me._set_mode(MODE_MULTI)
505 series = lookup(me._series, name, "unknown series `%s'" % name)
508 def _opts_series(me, cmd, opts):
510 for k, v in me._keyvals(opts):
511 if k is None: name = v
512 else: me._bad_keyval(cmd, k, v)
513 return me._get_series(name)
515 def _auto_epsrc(me, series):
516 dir = lookup(me._vdirs, series.name, "no active video directory")
517 season = series.ensure_season()
518 check(season.i is not None, "must use explicit iso for movie seasons")
519 vseason = lookup(dir.seasons, season.i,
520 "season %d not found in video dir `%s'" %
522 src = lookup(vseason.episodes, season.ep_i,
523 "episode %d.%d not found in video dir `%s'" %
524 (season.i, season.ep_i, dir.dir))
527 def _process_cmd(me, ww):
529 cmd = ww.nextword(); check(cmd is not None, "missing command")
530 try: sep = cmd.index(":")
531 except ValueError: opts = None
532 else: cmd, opts = cmd[:sep], cmd[sep + 1:]
536 for k, v in me._keyvals(opts):
537 if k is None: name = v
538 else: me._bad_keyval(cmd, k, v)
539 check(name is not None, "missing series name")
540 check(name not in me._series, "series `%s' already defined" % name)
541 title = ww.rest(); check(title is not None, "missing title")
542 me._set_mode(MODE_MULTI)
543 me._series[name] = series = Series(me._pl, name, title,
544 me._series_wanted is None or
545 name in me._series_wanted)
546 if series.wantedp: me._pl.nseries += 1
548 elif cmd == "season":
549 series = me._opts_series(cmd, opts)
551 check(w is not None, "missing season number")
553 if not series.wantedp: return
554 series.add_movies(ww.rest())
556 title = ww.rest(); i = getint(w)
557 if not series.wantedp: return
558 series.add_season(ww.rest(), getint(w), implicitp = False)
559 me._cur_episode = me._cur_chapter = None
562 elif cmd == "explen":
563 w = ww.rest(); check(w is not None, "missing duration spec")
564 d, v = parse_duration(w)
566 if v is not None: me._expvar = v
568 elif cmd == "epname":
569 for k, v in me._keyvals(opts): me._bad_keyval("epname", k, v)
570 name = ww.rest(); check(name is not None, "missing episode name")
571 try: sep = name.index(",")
572 except ValueError: names = name + "s"
573 else: name, names = name[:sep], name[sep + 1:]
574 me._pl.epname, me._pl.epnames = name, names
577 series = me._opts_series(cmd, opts)
578 w = ww.rest(); check(w is not None, "missing episode number")
580 if not series.wantedp: return
581 series.ensure_season().ep_i = epi
584 series = me._opts_series(cmd, opts)
585 fn = ww.rest(); check(fn is not None, "missing filename")
586 if not series.wantedp: return
587 if fn == "-": forget(me._isos, series.name)
589 check(OS.path.exists(OS.path.join(ROOT, fn)),
590 "iso file `%s' not found" % fn)
591 me._isos[series.name] = VideoDisc(fn)
594 series = me._opts_series(cmd, opts)
595 dir = ww.rest(); check(dir is not None, "missing directory")
596 if not series.wantedp: return
597 if dir == "-": forget(me._vdirs, series.name)
598 else: me._vdirs[series.name] = VideoDir(dir)
601 series = me._opts_series(cmd, opts)
602 dir = ww.rest(); check(dir is not None, "missing directory")
603 if not series.wantedp: return
604 if dir == "-": forget(me._audirs, series.name)
605 else: me._audirs[series.name] = AudioDir(dir)
607 elif cmd == "displaced":
608 series = me._opts_series(cmd, opts)
609 w = ww.rest(); check(w is not None, "missing count"); n = getint(w)
610 src = me._auto_epsrc(series)
614 raise ExpectedError("unknown command `%s'" % cmd)
616 def _process_episode(me, ww):
618 opts = ww.nextword(); check(opts is not None, "missing title/options")
619 ti = None; sname = None; neps = 1; epi = None; loch = hich = None
620 explen, expvar, explicitlen = me._explen, me._expvar, False
621 for k, v in me._keyvals(opts):
623 if v.isdigit(): ti = int(v)
624 elif v == "-": ti = "-"
626 elif k == "s": sname = v
627 elif k == "n": neps = getint(v)
628 elif k == "ep": epi = getint(v)
630 if v == "-": me._explen, me._expvar = None, DEFAULT_EXPVAR
632 explen, expvar = parse_duration(v, explen, expvar)
635 try: sep = v.index("-")
636 except ValueError: loch, hich = getint(v), None
637 else: loch, hich = getint(v[:sep]), getint(v[sep + 1:]) + 1
638 else: raise ExpectedError("unknown episode option `%s'" % k)
639 check(ti is not None, "missing title number")
640 series = me._get_series(sname)
641 me._cur_chapter = None
644 if not series.wantedp: return
645 season = series.ensure_season()
646 if epi is None: epi = season.ep_i
649 check(season.implicitp, "audio source, but explicit season")
650 dir = lookup(me._audirs, series.name,
651 "no title, and no audio directory")
652 src = lookup(dir.episodes, season.ep_i,
653 "episode %d not found in audio dir `%s'" % (epi, dir.dir))
656 try: src = me._isos[series.name]
657 except KeyError: src = me._auto_epsrc(series)
659 episode = season.add_episode(epi, neps, title, src, ti, loch, hich)
661 if episode.duration != -1 and explen is not None:
662 if not explicitlen: explen *= neps
663 if not explen*(1 - expvar) <= episode.duration <= explen*(1 + expvar):
664 if season.i is None: epid = "episode %d" % epi
665 else: epid = "episode %d.%d" % (season.i, epi)
666 raise ExpectedError \
667 ("%s duration %s %g%% > %g%% from expected %s" %
668 (epid, format_duration(episode.duration),
669 abs(100*(episode.duration - explen)/explen), 100*expvar,
670 format_duration(explen)))
671 me._pl.add_episode(episode)
672 me._cur_episode = episode
674 def _process_chapter(me, ww):
675 check(me._cur_episode is not None, "no current episode")
676 check(me._cur_episode.source.CHAPTERP,
677 "episode source doesn't allow chapters")
679 if me._cur_chapter is None: i = 1
680 else: i = me._cur_chapter.i + 1
681 me._cur_chapter = me._cur_episode.add_chapter(ww.rest(), i)
683 def parse_file(me, fn):
684 with location(FileLocation(fn, 0)) as floc:
685 with open(fn, "r") as f:
688 sline = line.lstrip()
689 if sline == "" or sline.startswith(";"): continue
691 if line.startswith("!"): me._process_cmd(Words(line[1:]))
692 elif not line[0].isspace(): me._process_episode(Words(line))
693 else: me._process_chapter(Words(line))
698 for name, vdir in me._vdirs.items():
699 if not me._series[name].wantedp: continue
700 for s in vdir.seasons.values():
701 for d in s.episodes.values():
703 for adir in me._audirs.values():
704 for d in adir.episodes.values():
706 for d in sorted(discs, key = lambda d: d.fn):
707 if d.neps is not None and d.neps != d.nuses:
708 raise ExpectedError("disc `%s' has %d episodes, used %d times" %
709 (d.fn, d.neps, d.nuses))
712 ROOT = "/mnt/dvd/archive/"
714 op = OP.OptionParser \
715 (usage = "%prog [-c] [-s SERIES] EPLS",
716 description = "Generate M3U playlists from an episode list.")
717 op.add_option("-c", "--chapters",
718 dest = "chaptersp", action = "store_true", default = False,
719 help = "Output individual chapter names")
720 op.add_option("-s", "--series",
721 dest = "series", type = "str", default = None,
722 help = "Output only the listed SERIES (comma-separated)")
723 opts, argv = op.parse_args()
724 if len(argv) != 1: op.print_usage(file = SYS.stderr); SYS.exit(2)
725 if opts.series is None:
728 series_wanted = set()
729 for name in opts.series.split(","): series_wanted.add(name)
731 ep = EpisodeListParser(series_wanted, opts.chaptersp)
732 ep.parse_file(argv[0])
735 except (ExpectedError, IOError, OSError) as e: