mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-11-15 02:57:38 +01:00
283 lines
9.6 KiB
Python
283 lines
9.6 KiB
Python
# Generates formats-info.md based on src/meta code, to update FORMATS.md.
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# A bit crummy and all but whatevs.
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import glob, os, re
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#TODO maybe sort by meta order list in vgmstream.c
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#TODO fix ??? descriptions
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#TODO fix some "ext + ext" exts
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#TODO improve some ubi formats
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#TODO detect subfile/init_x calls that aren't VGMSTREAM * init_
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#TODO detect MPEG_x, OPUS_x subtypes
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#TODO ignore some check extensions
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#TODO include common idstrings (first is_id32be() / is_id32le / get_id32be / get_id32be)
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# > after first valid init?
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META_FILES = '../**/meta/*.c'
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FORMAT_FILES = '../**/formats.c'
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IS_PRINT_INFO = False #false = write
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#VGMSTREAM * init_vgmstream_9tav(STREAMFILE *sf) #allow static since it's used in some cases
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RE_INIT = re.compile(r"VGMSTREAM[ ]*\*[ ]*init_vgmstream_([A-Za-z0-9_]+)\(.+\)")
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RE_INIT_STATIC = re.compile(r"static VGMSTREAM[ ]*\*[ ]*init_vgmstream_([A-Za-z0-9_]+)\(.+\)")
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RE_CODING = re.compile(r"coding_([A-Z0-9][A-Za-z0-9_]+)")
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RE_META = re.compile(r"meta_([A-Z0-9][A-Za-z0-9_]+)")
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#sf_dat = open_streamfile_by_ext(sf, "dat");
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RE_COMPANION_EXT = re.compile(r"open_streamfile_by_ext\(.+,[ ]*\"(.+)\"[ ]*\)")
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# a = init_...
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RE_SUBFILES = re.compile(r"^(?!VGMSTREAM).*init_vgmstream_([A-Za-z0-9_]+)[(;]")
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RE_COMPANION_FILE = re.compile(r"open_streamfile_by_filename\(.+,[ ]*(.+)?\)")
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# if (!check_extensions(sf,"..."))
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# if (check_extensions(sf,"...")) { ... } else goto fail;
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RE_NEW_EXTCHECK = re.compile(r"\([ ]*[!]*check_extensions\([ ]*.+?,[ ]*\"(.+)\"[ ]*\)")
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#if (strcasecmp("bg00",filename_extension(filename))) goto fail;
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RE_OLD_EXTCHECK = re.compile(r"if[ ]*\(strcasecmp\([ ]*\"(.+)\"[ ]*,filename_extension")
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# formats.c extract
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RE_FORMATS_META = re.compile(r"{meta_([A-Z0-9][A-Za-z0-9_]+)[ ]*,[ ]* \"(.+)\"[ ]*}")
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FILES_SKIP = [
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'txth.c','txtp.c','genh.c',
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'silence.c', 'mp4_faac.c', 'deblock_streamfile.c',
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'ps_headerless.c', 'zwdsp.c', 'ngc_bh2pcm.c',
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]
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EXT_RENAMES = {'...': '(any)', '': '(extensionless)'}
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INIT_IGNORES = ['default', 'main']
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META_IGNORES = ['meta_type', 'meta_t']
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CODING_IGNORES = ['coding_type', 'coding_t', 'FFmpeg', 'SILENCE']
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SUBFILES_IGNORES = ['subkey', 'silence', 'silence_container']
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# various codecs that
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INIT_CODECS = {
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re.compile(r'init_ffmpeg_aac\('): 'AAC',
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re.compile(r'init_ffmpeg_xwma\('): 'XWMA',
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re.compile(r'init_ffmpeg_atrac3plus_.+\('): 'ATRAC3PLUS',
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re.compile(r'init_ffmpeg_atrac3_.+\('): 'ATRAC3',
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re.compile(r'init_ffmpeg_xma_.+\('): 'XMA',
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re.compile(r'init_ffmpeg_xma1_.+\('): 'XMA1',
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re.compile(r'init_ffmpeg_xma2_.+\('): 'XMA2',
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re.compile(r'init_mpeg_custom\('): 'MPEG',
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re.compile(r'init_ffmpeg_mp4_.+\('): 'MP4/AAC',
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re.compile(r'init_ffmpeg_offset\('): 'FFmpeg(various)',
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re.compile(r'init_ffmpeg_header_offset\('): 'FFmpeg(various)',
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re.compile(r'init_ffmpeg_header_offset_subsong\('): 'FFmpeg(various)',
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re.compile(r'init_ffmpeg_.+?_opus.*\('): 'Opus',
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re.compile(r'init_vgmstream_ogg_vorbis_config\('): 'OGG',
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}
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class MetaInit:
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def __init__(self, name):
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self.name = name
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self.subfiles = []
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self.exts = []
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self.companions = []
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#self.metas = []
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def is_used(self):
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return self.subfiles or self.exts or self.companions
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class MetaFile:
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def __init__(self, file):
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self.fileinfo = os.path.basename(file)
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# divide each file into sub-metas since some .c have a bunch of them
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self.curr = MetaInit('default') #shouldn't be used but...
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self.inits = [self.curr]
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self.metas = []
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self.codings = []
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def add_inits(self, elems):
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if len(elems) > 1:
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raise ValueError("multiinit?")
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for elem in elems:
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self.curr = MetaInit(elem)
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self.inits.append(self.curr)
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def _add(self, new_items, items, renames={}):
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if not new_items:
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return
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for new_item in new_items:
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if new_item in renames:
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new_item = renames[new_item]
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if new_item not in items:
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items.append(new_item)
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#def add_inits(self, elems):
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# self._add(elems, self.inits)
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def add_codings(self, codings):
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self._add(codings, self.codings)
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def add_exts(self, exts, renames={}):
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self._add(exts, self.curr.exts, renames)
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def add_metas(self, metas):
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self._add(metas, self.metas)
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def add_companions(self, elems):
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self._add(elems, self.curr.companions)
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def add_subfiles(self, elems):
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self._add(elems, self.curr.subfiles)
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class App:
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def __init__(self):
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self.infos = []
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self.desc_metas = {}
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def extract_extensions(self, line):
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exts = RE_NEW_EXTCHECK.findall(line)
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if not exts:
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exts = RE_OLD_EXTCHECK.findall(line)
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if not exts:
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return
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exts_str = ','.join(exts)
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return exts_str.split(',')
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def extract_regex(self, line, regex, ignores=[]):
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items = []
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results = regex.findall(line)
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for result in results:
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if result in ignores:
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continue
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items.append(result)
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return items
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def extract_codecs(self, line):
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for regex, codec in INIT_CODECS.items():
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if regex.search(line):
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return [codec]
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def parse_files(self):
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infos = self.infos
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files = glob.glob(META_FILES, recursive=True)
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for file in files:
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info = MetaFile(file)
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with open(file, 'r', encoding='utf-8') as f:
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internals = []
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for line in f:
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# use to ignore subcalls to internal functions
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items = self.extract_regex(line, RE_INIT_STATIC)
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if items:
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internals += items
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items = self.extract_regex(line, RE_INIT)
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info.add_inits(items)
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items = self.extract_extensions(line)
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info.add_exts(items, EXT_RENAMES)
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items = self.extract_regex(line, RE_META, META_IGNORES)
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info.add_metas(items)
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items = self.extract_regex(line, RE_CODING, CODING_IGNORES)
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info.add_codings(items)
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items = self.extract_regex(line, RE_COMPANION_EXT)
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info.add_companions(items)
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items = self.extract_regex(line, RE_COMPANION_FILE)
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if items:
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info.add_companions(['(external)'])
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items = self.extract_regex(line, RE_SUBFILES, SUBFILES_IGNORES)
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if not any(x in internals for x in items):
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info.add_subfiles(items)
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items = self.extract_codecs(line)
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info.add_codings(items)
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infos.append(info)
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def parse_formats(self):
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desc_metas = self.desc_metas
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files = glob.glob(FORMAT_FILES, recursive=True)
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for file in files:
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with open(file, 'r', encoding='utf-8') as f:
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for line in f:
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items = self.extract_regex(line, RE_FORMATS_META)
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if not items or len(items[0]) != 2:
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continue
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meta, desc = items[0]
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desc_metas[meta] = desc
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def print(self):
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desc_metas = self.desc_metas
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infos = self.infos
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lines = []
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for info in infos:
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#info.sort()
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if info.fileinfo in FILES_SKIP:
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continue
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fileinfo = '- **%s**' % (info.fileinfo)
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#if info.metas:
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# metas = ' '.join(info.metas)
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# fileinfo += " (%s)" % (metas)
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lines.append(fileinfo)
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if info.metas:
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for meta in info.metas:
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desc = desc_metas.get(meta, '???')
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metainfo = "%s [*%s*]" % (desc, meta)
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lines.append(' - ' + metainfo)
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else:
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lines.append(' - (container)')
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for init in info.inits:
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if not init.is_used():
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continue
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if INIT_IGNORES and init.name in INIT_IGNORES:
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continue
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initinfo = '*%s*' % (init.name)
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infoexts = ''
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if init.exts:
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infoexts = '.' + ' .'.join(init.exts)
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if init.companions:
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if not init.exts:
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infoexts = '(base)'
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infoexts += ' + .' + ' .'.join(init.companions)
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if infoexts:
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#lines.append(infoexts)
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initinfo += ": `%s`" % infoexts
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lines.append(' - ' + initinfo)
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if init.subfiles:
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subfiles = 'Subfiles: *%s*' % ' '.join(init.subfiles)
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lines.append(' - ' + subfiles)
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if info.codings:
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codings = 'Codecs: ' + ' '.join(info.codings)
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lines.append(' - ' + codings)
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#lines.append('')
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if IS_PRINT_INFO:
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print('\n'.join(lines))
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else:
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with open('formats-info.md', 'w', encoding='utf-8') as f:
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f.write('\n'.join(lines))
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def process(self):
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self.parse_files()
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self.parse_formats()
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self.print()
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App().process()
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