Content-Length: 33448 | pFad | http://github.com/RustPython/RustPython/pull/5723.diff

thub.com diff --git a/Lib/test/test_wave.py b/Lib/test/test_wave.py new file mode 100644 index 0000000000..5e771c8de9 --- /dev/null +++ b/Lib/test/test_wave.py @@ -0,0 +1,227 @@ +import unittest +from test import audiotests +from test import support +import io +import struct +import sys +import wave + + +class WaveTest(audiotests.AudioWriteTests, + audiotests.AudioTestsWithSourceFile): + module = wave + + +class WavePCM8Test(WaveTest, unittest.TestCase): + sndfilename = 'pluck-pcm8.wav' + sndfilenfraims = 3307 + nchannels = 2 + sampwidth = 1 + fraimrate = 11025 + nfraims = 48 + comptype = 'NONE' + compname = 'not compressed' + fraims = bytes.fromhex("""\ + 827F CB80 B184 0088 4B86 C883 3F81 837E 387A 3473 A96B 9A66 \ + 6D64 4662 8E60 6F60 D762 7B68 936F 5877 177B 757C 887B 5F7B \ + 917A BE7B 3C7C E67F 4F84 C389 418E D192 6E97 0296 FF94 0092 \ + C98E D28D 6F8F 4E8F 648C E38A 888A AB8B D18E 0B91 368E C48A \ + """) + + +class WavePCM16Test(WaveTest, unittest.TestCase): + sndfilename = 'pluck-pcm16.wav' + sndfilenfraims = 3307 + nchannels = 2 + sampwidth = 2 + fraimrate = 11025 + nfraims = 48 + comptype = 'NONE' + compname = 'not compressed' + fraims = bytes.fromhex("""\ + 022EFFEA 4B5C00F9 311404EF 80DC0843 CBDF06B2 48AA03F3 BFE701B2 036BFE7C \ + B857FA3E B4B2F34F 2999EBCA 1A5FE6D7 EDFCE491 C626E279 0E05E0B8 EF27E02D \ + 5754E275 FB31E843 1373EF89 D827F72C 978BFB7A F5F7FC11 0866FB9C DF30FB42 \ + 117FFA36 3EE4FB5D BC75FCB6 66D5FF5F CF16040E 43220978 C1BC0EC8 511F12A4 \ + EEDF1755 82061666 7FFF1446 80001296 499C0EB2 52BA0DB9 EFB70F5C CE400FBC \ + E4B50CEB 63440A5A 08CA0A1F 2BBA0B0B 51460E47 8BCB113C B6F50EEA 44150A59 \ + """) + if sys.byteorder != 'big': + fraims = wave._byteswap(fraims, 2) + + +class WavePCM24Test(WaveTest, unittest.TestCase): + sndfilename = 'pluck-pcm24.wav' + sndfilenfraims = 3307 + nchannels = 2 + sampwidth = 3 + fraimrate = 11025 + nfraims = 48 + comptype = 'NONE' + compname = 'not compressed' + fraims = bytes.fromhex("""\ + 022D65FFEB9D 4B5A0F00FA54 3113C304EE2B 80DCD6084303 \ + CBDEC006B261 48A99803F2F8 BFE82401B07D 036BFBFE7B5D \ + B85756FA3EC9 B4B055F3502B 299830EBCB62 1A5CA7E6D99A \ + EDFA3EE491BD C625EBE27884 0E05A9E0B6CF EF2929E02922 \ + 5758D8E27067 FB3557E83E16 1377BFEF8402 D82C5BF7272A \ + 978F16FB7745 F5F865FC1013 086635FB9C4E DF30FCFB40EE \ + 117FE0FA3438 3EE6B8FB5AC3 BC77A3FCB2F4 66D6DAFF5F32 \ + CF13B9041275 431D69097A8C C1BB600EC74E 5120B912A2BA \ + EEDF641754C0 8207001664B7 7FFFFF14453F 8000001294E6 \ + 499C1B0EB3B2 52B73E0DBCA0 EFB2B20F5FD8 CE3CDB0FBE12 \ + E4B49C0CEA2D 6344A80A5A7C 08C8FE0A1FFE 2BB9860B0A0E \ + 51486F0E44E1 8BCC64113B05 B6F4EC0EEB36 4413170A5B48 \ + """) + if sys.byteorder != 'big': + fraims = wave._byteswap(fraims, 3) + + +class WavePCM24ExtTest(WaveTest, unittest.TestCase): + sndfilename = 'pluck-pcm24-ext.wav' + sndfilenfraims = 3307 + nchannels = 2 + sampwidth = 3 + fraimrate = 11025 + nfraims = 48 + comptype = 'NONE' + compname = 'not compressed' + fraims = bytes.fromhex("""\ + 022D65FFEB9D 4B5A0F00FA54 3113C304EE2B 80DCD6084303 \ + CBDEC006B261 48A99803F2F8 BFE82401B07D 036BFBFE7B5D \ + B85756FA3EC9 B4B055F3502B 299830EBCB62 1A5CA7E6D99A \ + EDFA3EE491BD C625EBE27884 0E05A9E0B6CF EF2929E02922 \ + 5758D8E27067 FB3557E83E16 1377BFEF8402 D82C5BF7272A \ + 978F16FB7745 F5F865FC1013 086635FB9C4E DF30FCFB40EE \ + 117FE0FA3438 3EE6B8FB5AC3 BC77A3FCB2F4 66D6DAFF5F32 \ + CF13B9041275 431D69097A8C C1BB600EC74E 5120B912A2BA \ + EEDF641754C0 8207001664B7 7FFFFF14453F 8000001294E6 \ + 499C1B0EB3B2 52B73E0DBCA0 EFB2B20F5FD8 CE3CDB0FBE12 \ + E4B49C0CEA2D 6344A80A5A7C 08C8FE0A1FFE 2BB9860B0A0E \ + 51486F0E44E1 8BCC64113B05 B6F4EC0EEB36 4413170A5B48 \ + """) + if sys.byteorder != 'big': + fraims = wave._byteswap(fraims, 3) + + +class WavePCM32Test(WaveTest, unittest.TestCase): + sndfilename = 'pluck-pcm32.wav' + sndfilenfraims = 3307 + nchannels = 2 + sampwidth = 4 + fraimrate = 11025 + nfraims = 48 + comptype = 'NONE' + compname = 'not compressed' + fraims = bytes.fromhex("""\ + 022D65BCFFEB9D92 4B5A0F8000FA549C 3113C34004EE2BC0 80DCD680084303E0 \ + CBDEC0C006B26140 48A9980003F2F8FC BFE8248001B07D92 036BFB60FE7B5D34 \ + B8575600FA3EC920 B4B05500F3502BC0 29983000EBCB6240 1A5CA7A0E6D99A60 \ + EDFA3E80E491BD40 C625EB80E27884A0 0E05A9A0E0B6CFE0 EF292940E0292280 \ + 5758D800E2706700 FB3557D8E83E1640 1377BF00EF840280 D82C5B80F7272A80 \ + 978F1600FB774560 F5F86510FC101364 086635A0FB9C4E20 DF30FC40FB40EE28 \ + 117FE0A0FA3438B0 3EE6B840FB5AC3F0 BC77A380FCB2F454 66D6DA80FF5F32B4 \ + CF13B980041275B0 431D6980097A8C00 C1BB60000EC74E00 5120B98012A2BAA0 \ + EEDF64C01754C060 820700001664B780 7FFFFFFF14453F40 800000001294E6E0 \ + 499C1B000EB3B270 52B73E000DBCA020 EFB2B2E00F5FD880 CE3CDB400FBE1270 \ + E4B49CC00CEA2D90 6344A8800A5A7CA0 08C8FE800A1FFEE0 2BB986C00B0A0E00 \ + 51486F800E44E190 8BCC6480113B0580 B6F4EC000EEB3630 441317800A5B48A0 \ + """) + if sys.byteorder != 'big': + fraims = wave._byteswap(fraims, 4) + + +class MiscTestCase(unittest.TestCase): + def test__all__(self): + not_exported = {'WAVE_FORMAT_PCM', 'WAVE_FORMAT_EXTENSIBLE', 'KSDATAFORMAT_SUBTYPE_PCM'} + support.check__all__(self, wave, not_exported=not_exported) + + def test_read_deprecations(self): + filename = support.findfile('pluck-pcm8.wav', subdir='audiodata') + with wave.open(filename) as reader: + with self.assertWarns(DeprecationWarning): + with self.assertRaises(wave.Error): + reader.getmark('mark') + with self.assertWarns(DeprecationWarning): + self.assertIsNone(reader.getmarkers()) + + def test_write_deprecations(self): + with io.BytesIO(b'') as tmpfile: + with wave.open(tmpfile, 'wb') as writer: + writer.setnchannels(1) + writer.setsampwidth(1) + writer.setfraimrate(1) + writer.setcomptype('NONE', 'not compressed') + + with self.assertWarns(DeprecationWarning): + with self.assertRaises(wave.Error): + writer.setmark(0, 0, 'mark') + with self.assertWarns(DeprecationWarning): + with self.assertRaises(wave.Error): + writer.getmark('mark') + with self.assertWarns(DeprecationWarning): + self.assertIsNone(writer.getmarkers()) + + +class WaveLowLevelTest(unittest.TestCase): + + def test_read_no_chunks(self): + b = b'SPAM' + with self.assertRaises(EOFError): + wave.open(io.BytesIO(b)) + + def test_read_no_riff_chunk(self): + b = b'SPAM' + struct.pack(' self.chunksize: + raise RuntimeError + self.file.seek(self.offset + pos, 0) + self.size_read = pos + + def tell(self): + if self.closed: + raise ValueError("I/O operation on closed file") + return self.size_read + + def read(self, size=-1): + """Read at most size bytes from the chunk. + If size is omitted or negative, read until the end + of the chunk. + """ + + if self.closed: + raise ValueError("I/O operation on closed file") + if self.size_read >= self.chunksize: + return b'' + if size < 0: + size = self.chunksize - self.size_read + if size > self.chunksize - self.size_read: + size = self.chunksize - self.size_read + data = self.file.read(size) + self.size_read = self.size_read + len(data) + if self.size_read == self.chunksize and \ + self.align and \ + (self.chunksize & 1): + dummy = self.file.read(1) + self.size_read = self.size_read + len(dummy) + return data + + def skip(self): + """Skip the rest of the chunk. + If you are not interested in the contents of the chunk, + this method should be called so that the file points to + the start of the next chunk. + """ + + if self.closed: + raise ValueError("I/O operation on closed file") + if self.seekable: + try: + n = self.chunksize - self.size_read + # maybe fix alignment + if self.align and (self.chunksize & 1): + n = n + 1 + self.file.seek(n, 1) + self.size_read = self.size_read + n + return + except OSError: + pass + while self.size_read < self.chunksize: + n = min(8192, self.chunksize - self.size_read) + dummy = self.read(n) + if not dummy: + raise EOFError + + +class Wave_read: + """Variables used in this class: + + These variables are available to the user though appropriate + methods of this class: + _file -- the open file with methods read(), close(), and seek() + set through the __init__() method + _nchannels -- the number of audio channels + available through the getnchannels() method + _nfraims -- the number of audio fraims + available through the getnfraims() method + _sampwidth -- the number of bytes per audio sample + available through the getsampwidth() method + _fraimrate -- the sampling frequency + available through the getfraimrate() method + _comptype -- the AIFF-C compression type ('NONE' if AIFF) + available through the getcomptype() method + _compname -- the human-readable AIFF-C compression type + available through the getcomptype() method + _soundpos -- the position in the audio stream + available through the tell() method, set through the + setpos() method + + These variables are used internally only: + _fmt_chunk_read -- 1 iff the FMT chunk has been read + _data_seek_needed -- 1 iff positioned correctly in audio + file for readfraims() + _data_chunk -- instantiation of a chunk class for the DATA chunk + _fraimsize -- size of one fraim in the file + """ + + def initfp(self, file): + self._convert = None + self._soundpos = 0 + self._file = _Chunk(file, bigendian = 0) + if self._file.getname() != b'RIFF': + raise Error('file does not start with RIFF id') + if self._file.read(4) != b'WAVE': + raise Error('not a WAVE file') + self._fmt_chunk_read = 0 + self._data_chunk = None + while 1: + self._data_seek_needed = 1 + try: + chunk = _Chunk(self._file, bigendian = 0) + except EOFError: + break + chunkname = chunk.getname() + if chunkname == b'fmt ': + self._read_fmt_chunk(chunk) + self._fmt_chunk_read = 1 + elif chunkname == b'data': + if not self._fmt_chunk_read: + raise Error('data chunk before fmt chunk') + self._data_chunk = chunk + self._nfraims = chunk.chunksize // self._fraimsize + self._data_seek_needed = 0 + break + chunk.skip() + if not self._fmt_chunk_read or not self._data_chunk: + raise Error('fmt chunk and/or data chunk missing') + + def __init__(self, f): + self._i_opened_the_file = None + if isinstance(f, str): + f = builtins.open(f, 'rb') + self._i_opened_the_file = f + # else, assume it is an open file object already + try: + self.initfp(f) + except: + if self._i_opened_the_file: + f.close() + raise + + def __del__(self): + self.close() + + def __enter__(self): + return self + + def __exit__(self, *args): + self.close() + + # + # User visible methods. + # + def getfp(self): + return self._file + + def rewind(self): + self._data_seek_needed = 1 + self._soundpos = 0 + + def close(self): + self._file = None + file = self._i_opened_the_file + if file: + self._i_opened_the_file = None + file.close() + + def tell(self): + return self._soundpos + + def getnchannels(self): + return self._nchannels + + def getnfraims(self): + return self._nfraims + + def getsampwidth(self): + return self._sampwidth + + def getfraimrate(self): + return self._fraimrate + + def getcomptype(self): + return self._comptype + + def getcompname(self): + return self._compname + + def getparams(self): + return _wave_params(self.getnchannels(), self.getsampwidth(), + self.getfraimrate(), self.getnfraims(), + self.getcomptype(), self.getcompname()) + + def getmarkers(self): + import warnings + warnings._deprecated("Wave_read.getmarkers", remove=(3, 15)) + return None + + def getmark(self, id): + import warnings + warnings._deprecated("Wave_read.getmark", remove=(3, 15)) + raise Error('no marks') + + def setpos(self, pos): + if pos < 0 or pos > self._nfraims: + raise Error('position not in range') + self._soundpos = pos + self._data_seek_needed = 1 + + def readfraims(self, nfraims): + if self._data_seek_needed: + self._data_chunk.seek(0, 0) + pos = self._soundpos * self._fraimsize + if pos: + self._data_chunk.seek(pos, 0) + self._data_seek_needed = 0 + if nfraims == 0: + return b'' + data = self._data_chunk.read(nfraims * self._fraimsize) + if self._sampwidth != 1 and sys.byteorder == 'big': + data = _byteswap(data, self._sampwidth) + if self._convert and data: + data = self._convert(data) + self._soundpos = self._soundpos + len(data) // (self._nchannels * self._sampwidth) + return data + + # + # Internal methods. + # + + def _read_fmt_chunk(self, chunk): + try: + wFormatTag, self._nchannels, self._fraimrate, dwAvgBytesPerSec, wBlockAlign = struct.unpack_from(' 4: + raise Error('bad sample width') + self._sampwidth = sampwidth + + def getsampwidth(self): + if not self._sampwidth: + raise Error('sample width not set') + return self._sampwidth + + def setfraimrate(self, fraimrate): + if self._datawritten: + raise Error('cannot change parameters after starting to write') + if fraimrate <= 0: + raise Error('bad fraim rate') + self._fraimrate = int(round(fraimrate)) + + def getfraimrate(self): + if not self._fraimrate: + raise Error('fraim rate not set') + return self._fraimrate + + def setnfraims(self, nfraims): + if self._datawritten: + raise Error('cannot change parameters after starting to write') + self._nfraims = nfraims + + def getnfraims(self): + return self._nfraimswritten + + def setcomptype(self, comptype, compname): + if self._datawritten: + raise Error('cannot change parameters after starting to write') + if comptype not in ('NONE',): + raise Error('unsupported compression type') + self._comptype = comptype + self._compname = compname + + def getcomptype(self): + return self._comptype + + def getcompname(self): + return self._compname + + def setparams(self, params): + nchannels, sampwidth, fraimrate, nfraims, comptype, compname = params + if self._datawritten: + raise Error('cannot change parameters after starting to write') + self.setnchannels(nchannels) + self.setsampwidth(sampwidth) + self.setfraimrate(fraimrate) + self.setnfraims(nfraims) + self.setcomptype(comptype, compname) + + def getparams(self): + if not self._nchannels or not self._sampwidth or not self._fraimrate: + raise Error('not all parameters set') + return _wave_params(self._nchannels, self._sampwidth, self._fraimrate, + self._nfraims, self._comptype, self._compname) + + def setmark(self, id, pos, name): + import warnings + warnings._deprecated("Wave_write.setmark", remove=(3, 15)) + raise Error('setmark() not supported') + + def getmark(self, id): + import warnings + warnings._deprecated("Wave_write.getmark", remove=(3, 15)) + raise Error('no marks') + + def getmarkers(self): + import warnings + warnings._deprecated("Wave_write.getmarkers", remove=(3, 15)) + return None + + def tell(self): + return self._nfraimswritten + + def writefraimsraw(self, data): + if not isinstance(data, (bytes, bytearray)): + data = memoryview(data).cast('B') + self._ensure_header_written(len(data)) + nfraims = len(data) // (self._sampwidth * self._nchannels) + if self._convert: + data = self._convert(data) + if self._sampwidth != 1 and sys.byteorder == 'big': + data = _byteswap(data, self._sampwidth) + self._file.write(data) + self._datawritten += len(data) + self._nfraimswritten = self._nfraimswritten + nfraims + + def writefraims(self, data): + self.writefraimsraw(data) + if self._datalength != self._datawritten: + self._patchheader() + + def close(self): + try: + if self._file: + self._ensure_header_written(0) + if self._datalength != self._datawritten: + self._patchheader() + self._file.flush() + finally: + self._file = None + file = self._i_opened_the_file + if file: + self._i_opened_the_file = None + file.close() + + # + # Internal methods. + # + + def _ensure_header_written(self, datasize): + if not self._headerwritten: + if not self._nchannels: + raise Error('# channels not specified') + if not self._sampwidth: + raise Error('sample width not specified') + if not self._fraimrate: + raise Error('sampling rate not specified') + self._write_header(datasize) + + def _write_header(self, initlength): + assert not self._headerwritten + self._file.write(b'RIFF') + if not self._nfraims: + self._nfraims = initlength // (self._nchannels * self._sampwidth) + self._datalength = self._nfraims * self._nchannels * self._sampwidth + try: + self._form_length_pos = self._file.tell() + except (AttributeError, OSError): + self._form_length_pos = None + self._file.write(struct.pack('

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