vgmstream/.github/formats-info.py
2024-07-25 18:21:23 +02:00

372 lines
12 KiB
Python

# Generates formats-info.md based on src/meta code, to update FORMATS.md.
# A bit crummy and all but whatevs.
import glob, os, re
#TODO fix some "ext + ext" exts
#TODO improve dsp/ubi/ea formats
#TODO detect subfile/init_x calls that aren't VGMSTREAM * init_
#TODO detect MPEG_x, OPUS_x subtypes
#TODO ignore some check extensions?
#TODO maybe include common idstrings (first is_id32be() / is_id32le / get_id32be / get_id32be)
# > after first valid init?
META_SRC = '../**/meta/*.c'
FORMAT_SRC = '../**/formats.c'
SORT_SRC = '../**/vgmstream_init.c'
FORMAT_DOC = '../**/FORMATS.md'
DUMP_DOC = 'formats-info.md'
IS_SORT = True #sorts metas lines based on LIST_SRC
IS_PRINT_DOC = False #echo list
IS_DUMP_DOC = False #creates DUMP_DOC
IS_UPDATE_DOC = True #updates FORMAT_DOC
#VGMSTREAM * init_vgmstream_9tav(STREAMFILE *sf) #allow static since it's used in some cases
RE_INIT = re.compile(r"VGMSTREAM[ ]*\*[ ]*init_vgmstream_([A-Za-z0-9_]+)\(.+\)")
RE_INIT_STATIC = re.compile(r"static VGMSTREAM[ ]*\*[ ]*init_vgmstream_([A-Za-z0-9_]+)\(.+\)")
RE_CODING = re.compile(r"coding_([A-Z0-9][A-Za-z0-9_]+)")
RE_META = re.compile(r"meta_([A-Z0-9][A-Za-z0-9_]+)")
#sf_dat = open_streamfile_by_ext(sf, "dat");
RE_COMPANION_EXT = re.compile(r"open_streamfile_by_ext\(.+,[ ]*\"(.+)\"[ ]*\)")
# a = init_...
RE_SUBFILES = re.compile(r"^(?!VGMSTREAM).*init_vgmstream_([A-Za-z0-9_]+)[(;]")
RE_COMPANION_FILE = re.compile(r"open_streamfile_by_filename\(.+,[ ]*(.+)?\)")
# if (!check_extensions(sf,"..."))
# if (check_extensions(sf,"...")) { ... } else goto fail;
RE_NEW_EXTCHECK = re.compile(r"\([ ]*[!]*check_extensions\([ ]*.+?,[ ]*\"(.+)\"[ ]*\)")
#if (strcasecmp("bg00",filename_extension(filename))) goto fail;
RE_OLD_EXTCHECK = re.compile(r"if[ ]*\(strcasecmp\([ ]*\"(.+)\"[ ]*,filename_extension")
# formats.c extract
RE_FORMATS_META = re.compile(r"{meta_([A-Z0-9][A-Za-z0-9_]+)[ ]*,[ ]* \"(.+)\"[ ]*}")
# vgmstream.c meta call extract
RE_SORT_INIT = re.compile(r"[ ]+init_vgmstream_([A-Za-z0-9_]+),")
FILES_SKIP = [
'txth.c','txtp.c','genh.c',
'silence.c', 'mp4_faac.c', 'deblock_streamfile.c',
'ps_headerless.c', 'zwdsp.c',
]
EXT_RENAMES = {'...': '(any)', '': '(extensionless)'}
INIT_IGNORES = ['default', 'main']
META_IGNORES = ['meta_type', 'meta_t']
CODING_IGNORES = ['coding_type', 'coding_t', 'FFmpeg', 'SILENCE']
SUBFILES_IGNORES = ['subkey', 'silence', 'silence_container']
# detect better various codecs that use a generic coding_XXX
INIT_CODECS = {
re.compile(r'init_ffmpeg_aac\('): 'AAC',
re.compile(r'init_ffmpeg_xwma\('): 'XWMA',
re.compile(r'init_ffmpeg_atrac3plus_.+\('): 'ATRAC3PLUS',
re.compile(r'init_ffmpeg_atrac3_.+\('): 'ATRAC3',
re.compile(r'init_ffmpeg_xma_.+\('): 'XMA',
re.compile(r'init_ffmpeg_xma1_.+\('): 'XMA1',
re.compile(r'init_ffmpeg_xma2_.+\('): 'XMA2',
re.compile(r'init_mpeg_custom\('): 'MPEG',
re.compile(r'init_ffmpeg_mp4_.+\('): 'MP4/AAC',
re.compile(r'init_ffmpeg_offset\('): 'FFmpeg(various)',
re.compile(r'init_ffmpeg_header_offset\('): 'FFmpeg(various)',
re.compile(r'init_ffmpeg_header_offset_subsong\('): 'FFmpeg(various)',
re.compile(r'init_ffmpeg_.+?_opus.*\('): 'Opus',
re.compile(r'init_vgmstream_ogg_vorbis_config\('): 'OGG',
}
class MetaInit:
def __init__(self, name):
self.name = name
self.subfiles = []
self.exts = []
self.companions = []
#self.metas = []
def is_used(self):
return self.subfiles or self.exts or self.companions
class MetaFile:
def __init__(self, file):
self.fileinfo = os.path.basename(file)
self.order = 9999
# divide each file into sub-metas since some .c have a bunch of them
self.curr = MetaInit('default') #shouldn't be used but...
self.inits = [self.curr]
self.metas = []
self.codings = []
def add_inits(self, elems):
if len(elems) > 1:
raise ValueError("multiinit?")
for elem in elems:
self.curr = MetaInit(elem)
self.inits.append(self.curr)
def _add(self, new_items, items, renames={}):
if not new_items:
return
for new_item in new_items:
if new_item in renames:
new_item = renames[new_item]
if new_item not in items:
items.append(new_item)
#def add_inits(self, elems):
# self._add(elems, self.inits)
def add_codings(self, codings):
self._add(codings, self.codings)
def add_exts(self, exts, renames={}):
self._add(exts, self.curr.exts, renames)
def add_metas(self, metas):
self._add(metas, self.metas)
def add_companions(self, elems):
self._add(elems, self.curr.companions)
def add_subfiles(self, elems):
self._add(elems, self.curr.subfiles)
class App:
def __init__(self):
self.infos = []
self.desc_metas = {}
self.lines = []
def extract_extensions(self, line):
exts = RE_NEW_EXTCHECK.findall(line)
if not exts:
exts = RE_OLD_EXTCHECK.findall(line)
if not exts:
return
exts_str = ','.join(exts)
return exts_str.split(',')
def extract_regex(self, line, regex, ignores=[]):
items = []
results = regex.findall(line)
for result in results:
if result in ignores:
continue
items.append(result)
return items
def extract_codecs(self, line):
for regex, codec in INIT_CODECS.items():
if regex.search(line):
return [codec]
def parse_files(self):
infos = self.infos
files = glob.glob(META_SRC, recursive=True)
for file in files:
info = MetaFile(file)
with open(file, 'r', encoding='utf-8') as f:
internals = []
for line in f:
# use to ignore subcalls to internal functions
items = self.extract_regex(line, RE_INIT_STATIC)
if items:
internals += items
items = self.extract_regex(line, RE_INIT)
info.add_inits(items)
items = self.extract_extensions(line)
info.add_exts(items, EXT_RENAMES)
items = self.extract_regex(line, RE_META, META_IGNORES)
info.add_metas(items)
items = self.extract_regex(line, RE_CODING, CODING_IGNORES)
info.add_codings(items)
items = self.extract_regex(line, RE_COMPANION_EXT)
info.add_companions(items)
items = self.extract_regex(line, RE_COMPANION_FILE)
if items:
info.add_companions(['(external)'])
items = self.extract_regex(line, RE_SUBFILES, SUBFILES_IGNORES)
if not any(x in internals for x in items):
info.add_subfiles(items)
items = self.extract_codecs(line)
info.add_codings(items)
infos.append(info)
def parse_formats(self):
desc_metas = self.desc_metas
files = glob.glob(FORMAT_SRC, recursive=True)
for file in files:
with open(file, 'r', encoding='utf-8') as f:
for line in f:
items = self.extract_regex(line, RE_FORMATS_META)
if not items or len(items[0]) != 2:
continue
meta, desc = items[0]
desc_metas[meta] = desc
def sort_files(self):
inits_order = {}
# get process list order
files = glob.glob(SORT_SRC, recursive=True)
order = 0
for file in files:
with open(file, 'r', encoding='utf-8') as f:
for line in f:
items = self.extract_regex(line, RE_SORT_INIT)
if not items or len(items) != 1:
continue
init = items[0]
inits_order[init] = order
order += 1
# update (could be done on first pass or maybe in sort() but it's a bit specialized)
infos = self.infos
for info in infos:
for init in info.inits:
order = inits_order.get(init.name)
#print(init, order)
if order is not None and info.order > order:
info.order = order
infos.sort(key=lambda x: x.order) #, reverse=True
def prepare_results(self):
desc_metas = self.desc_metas
infos = self.infos
lines = self.lines
for info in infos:
#info.sort()
if info.fileinfo in FILES_SKIP:
continue
fileinfo = '- **%s**' % (info.fileinfo)
#if info.metas:
# metas = ' '.join(info.metas)
# fileinfo += " (%s)" % (metas)
lines.append(fileinfo)
if info.metas:
for meta in info.metas:
desc = desc_metas.get(meta, '???')
metainfo = "%s [*%s*]" % (desc, meta)
lines.append(' - ' + metainfo)
else:
lines.append(' - (container)')
for init in info.inits:
if not init.is_used():
continue
if INIT_IGNORES and init.name in INIT_IGNORES:
continue
initinfo = '*%s*' % (init.name)
infoexts = ''
if init.exts:
infoexts = '.' + ' .'.join(init.exts)
if init.companions:
if not init.exts:
infoexts = '(base)'
infoexts += ' + .' + ' .'.join(init.companions)
if infoexts:
#lines.append(infoexts)
initinfo += ": `%s`" % infoexts
lines.append(' - ' + initinfo)
if init.subfiles:
subfiles = 'Subfiles: *%s*' % ' '.join(init.subfiles)
lines.append(' - ' + subfiles)
if info.codings:
codings = 'Codecs: ' + ' '.join(info.codings)
lines.append(' - ' + codings)
#lines.append('')
def update_doc(self):
new_lines = self.lines
files = glob.glob(FORMAT_DOC, recursive=True)
if not files:
print("format doc (%s) not found" % FORMAT_DOC)
return
doc_lines = []
file = files[0]
with open(file, 'r', encoding='utf-8') as f:
is_updating = False
for line in f:
line = line.strip('\n')
# find list section, add all current lines and ignore old ones until next section
if line.startswith('### List'):
is_updating = True
doc_lines.append(line)
doc_lines += new_lines
doc_lines.append('')
continue
# next section
if is_updating and line.startswith('#'):
is_updating = False
if not is_updating:
doc_lines.append(line)
doc_lines.append('')
with open(file, 'w', encoding='utf-8', newline='\n') as f:
f.write('\n'.join(doc_lines))
def dump_doc(self):
lines = self.lines
with open(DUMP_DOC, 'w', encoding='utf-8') as f:
f.write('\n'.join(lines))
def print_doc(self):
lines = self.lines
print('\n'.join(lines))
def process(self):
self.parse_files()
self.parse_formats()
if IS_SORT:
self.sort_files()
self.prepare_results()
if IS_PRINT_DOC:
self.print_doc()
if IS_DUMP_DOC:
self.dump_doc()
if IS_UPDATE_DOC:
self.update_doc()
App().process()