shenleiandClaude Opus 5
5fad769ee8
The embedded 40250 script layer needs its own interpreter on five platforms. 2.7 is end-of-life, so nothing can be fetched from the target SDKs and the source is vendored (official 2.7.18 tarball, trimmed to 25MB; Lib/ stays for step 3's python27.zip). cpython-2.7.18/CMakeLists.txt builds one `mtpython` static library from exactly the 133 objects the reference libpython2.7.a contains, off by default behind -DMTGODOT_EMBED_PYTHON=ON. The source list and the built-in module table (config/config.c, 39 entries) are shared; pyconfig.h is a probe result and is not, so each platform keeps its own under config/<platform>/, regenerated by tools/py_embed/gen_pyconfig.sh and checked against the shared table. Three vendor patches, documented in docs/THIRD-PARTY.md: configure/configure.ac learn arm64 on macOS, and posixmodule.c undefines the process-control calls it hard-defines past pyconfig.h when building for iOS. macOS (ctest python.embed: every builtin imports, codecs and pickle work off the vendored Lib/), Android arm64 and iOS arm64 build. Linux needs a Linux host and Windows needs a MinGW-vs-MSVC decision; both are noted for step 4. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
50 lines
1.4 KiB
Python
50 lines
1.4 KiB
Python
"""Interpret sun audio headers."""
|
|
from warnings import warnpy3k
|
|
warnpy3k("the sunaudio module has been removed in Python 3.0; "
|
|
"use the sunau module instead", stacklevel=2)
|
|
del warnpy3k
|
|
|
|
|
|
MAGIC = '.snd'
|
|
|
|
class error(Exception):
|
|
pass
|
|
|
|
|
|
def get_long_be(s):
|
|
"""Convert a 4-char value to integer."""
|
|
return (ord(s[0])<<24) | (ord(s[1])<<16) | (ord(s[2])<<8) | ord(s[3])
|
|
|
|
|
|
def gethdr(fp):
|
|
"""Read a sound header from an open file."""
|
|
if fp.read(4) != MAGIC:
|
|
raise error, 'gethdr: bad magic word'
|
|
hdr_size = get_long_be(fp.read(4))
|
|
data_size = get_long_be(fp.read(4))
|
|
encoding = get_long_be(fp.read(4))
|
|
sample_rate = get_long_be(fp.read(4))
|
|
channels = get_long_be(fp.read(4))
|
|
excess = hdr_size - 24
|
|
if excess < 0:
|
|
raise error, 'gethdr: bad hdr_size'
|
|
if excess > 0:
|
|
info = fp.read(excess)
|
|
else:
|
|
info = ''
|
|
return (data_size, encoding, sample_rate, channels, info)
|
|
|
|
|
|
def printhdr(file):
|
|
"""Read and print the sound header of a named file."""
|
|
hdr = gethdr(open(file, 'r'))
|
|
data_size, encoding, sample_rate, channels, info = hdr
|
|
while info[-1:] == '\0':
|
|
info = info[:-1]
|
|
print 'File name: ', file
|
|
print 'Data size: ', data_size
|
|
print 'Encoding: ', encoding
|
|
print 'Sample rate:', sample_rate
|
|
print 'Channels: ', channels
|
|
print 'Info: ', repr(info)
|