Python cdata.uint_le函数代码示例

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本文整理汇总了Python中mutagen._util.cdata.uint_le函数的典型用法代码示例。如果您正苦于以下问题：Python uint_le函数的具体用法？Python uint_le怎么用？Python uint_le使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了uint_le函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Python代码示例。

示例1: __parse_tag

    def __parse_tag(self, tag, count):
        fileobj = cBytesIO(tag)

        for i in xrange(count):
            size_data = fileobj.read(4)
            # someone writes wrong item counts
            if not size_data:
                break
            size = cdata.uint_le(size_data)
            flags = cdata.uint_le(fileobj.read(4))

            # Bits 1 and 2 bits are flags, 0-3
            # Bit 0 is read/write flag, ignored
            kind = (flags & 6) >> 1
            if kind == 3:
                raise APEBadItemError("value type must be 0, 1, or 2")
            key = value = fileobj.read(1)
            while key[-1:] != b'\x00' and value:
                value = fileobj.read(1)
                key += value
            if key[-1:] == b"\x00":
                key = key[:-1]
            if PY3:
                try:
                    key = key.decode("ascii")
                except UnicodeError as err:
                    reraise(APEBadItemError, err, sys.exc_info()[2])
            value = fileobj.read(size)

            value = _get_value_type(kind)._new(value)

            self[key] = value

开发者ID:4everGhost，项目名称:PlexKodiConnect，代码行数:32，代码来源:apev2.py

示例2: __fill_missing

    def __fill_missing(self, fileobj):
        fileobj.seek(self.metadata + 8)
        self.version = fileobj.read(4)
        self.size = cdata.uint_le(fileobj.read(4))
        self.items = cdata.uint_le(fileobj.read(4))
        self.flags = cdata.uint_le(fileobj.read(4))

        if self.header is not None:
            self.data = self.header + 32
            # If we're reading the header, the size is the header
            # offset + the size, which includes the footer.
            self.end = self.data + self.size
            fileobj.seek(self.end - 32, 0)
            if fileobj.read(8) == b"APETAGEX":
                self.footer = self.end - 32
        elif self.footer is not None:
            self.end = self.footer + 32
            self.data = self.end - self.size
            if self.flags & HAS_HEADER:
                self.header = self.data - 32
            else:
                self.header = self.data
        else:
            raise APENoHeaderError("No APE tag found")

        # exclude the footer from size
        if self.footer is not None:
            self.size -= 32

开发者ID:4everGhost，项目名称:PlexKodiConnect，代码行数:28，代码来源:apev2.py

示例3: load

    def load(self, fileobj, errors='replace', framing=True):
        """Parse a Vorbis comment from a file-like object.

        Keyword arguments:
        errors:
          'strict', 'replace', or 'ignore'. This affects Unicode decoding
          and how other malformed content is interpreted.
        framing -- if true, fail if a framing bit is not present

        Framing bits are required by the Vorbis comment specification,
        but are not used in FLAC Vorbis comment blocks.

        """
        try:
            vendor_length = cdata.uint_le(fileobj.read(4))
            self.vendor = fileobj.read(vendor_length).decode('utf-8', errors)
            count = cdata.uint_le(fileobj.read(4))
            for i in range(count):
                length = cdata.uint_le(fileobj.read(4))
                string = fileobj.read(length).decode('utf-8', errors)
                try: tag, value = string.split('=', 1)
                except ValueError, err:
                    if errors == "ignore":
                        continue
                    elif errors == "replace":
                        tag, value = u"unknown%d" % i, string
                    else:
                        raise VorbisEncodingError, str(err), sys.exc_info()[2]
                try: tag = tag.encode('ascii', errors)
                except UnicodeEncodeError:
                    raise VorbisEncodingError, "invalid tag name %r" % tag
                else:
                    if is_valid_key(tag): self.append((tag, value))
            if framing and not ord(fileobj.read(1)) & 0x01:
                raise VorbisUnsetFrameError("framing bit was unset")

开发者ID:penso，项目名称:banana，代码行数:35，代码来源:_vorbis.py

示例4: init

 def __init__(self, fileobj):
     header = fileobj.read(28)
     if len(header) != 28 or not header.startswith("wvpk"):
         raise WavPackHeaderError("not a WavPack file")
     samples = cdata.uint_le(header[12:16])
     flags = cdata.uint_le(header[24:28])
     self.version = cdata.short_le(header[8:10])
     self.channels = bool(flags & 4) or 2
     self.sample_rate = RATES[(flags >> 23) & 0xF]
     self.length = float(samples) / self.sample_rate

开发者ID:Chitz，项目名称:album-art-fixer，代码行数:10，代码来源:wavpack.py

示例5: init

 def __init__(self, fileobj):
     page = OggPage(fileobj)
     while not page.packets[0].startswith(b"Speex   "):
         page = OggPage(fileobj)
     if not page.first:
         raise OggSpeexHeaderError(
             "page has ID header, but doesn't start a stream")
     self.sample_rate = cdata.uint_le(page.packets[0][36:40])
     self.channels = cdata.uint_le(page.packets[0][48:52])
     self.bitrate = max(0, cdata.int_le(page.packets[0][52:56]))
     self.serial = page.serial

开发者ID:4everGhost，项目名称:PlexKodiConnect，代码行数:11，代码来源:oggspeex.py

示例6: test_uint

    def test_uint(self):
        self.failUnlessEqual(cdata.uint_le(self.ZERO(4)), 0)
        self.failUnlessEqual(cdata.uint_le(self.LEONE(4)), 1)
        self.failUnlessEqual(cdata.uint_le(self.BEONE(4)), 2 ** 32 >> 8)
        self.failUnlessEqual(cdata.uint_le(self.NEGONE(4)), 2 ** 32 - 1)
        self.assertTrue(cdata.uint_le is cdata.uint32_le)

        self.failUnlessEqual(cdata.uint_be(self.ZERO(4)), 0)
        self.failUnlessEqual(cdata.uint_be(self.LEONE(4)), 2 ** 32 >> 8)
        self.failUnlessEqual(cdata.uint_be(self.BEONE(4)), 1)
        self.failUnlessEqual(cdata.uint_be(self.NEGONE(4)), 2 ** 32 - 1)
        self.assertTrue(cdata.uint_be is cdata.uint32_be)

开发者ID:akerbis，项目名称:mutagen，代码行数:12，代码来源:test__util.py

示例7: init

    def __init__(self, fileobj):
        header = bytearray(fileobj.read(32))
        if len(header) != 32:
            raise MusepackHeaderError("not a Musepack file")
        # Skip ID3v2 tags
        if header[:3] == b"ID3":
            size = 10 + BitPaddedInt(header[6:10])
            fileobj.seek(size)
            header = bytearray(fileobj.read(32))
            if len(header) != 32:
                raise MusepackHeaderError("not a Musepack file")
        # SV7
        if header.startswith(b"MP+"):
            self.version = header[3] & 0xF
            if self.version < 7:
                raise MusepackHeaderError("not a Musepack file")
            frames = cdata.uint_le(header[4:8])
            flags = cdata.uint_le(header[8:12])

            self.title_peak, self.title_gain = struct_unpack(
                "<Hh", header[12:16])
            self.album_peak, self.album_gain = struct_unpack(
                "<Hh", header[16:20])
            self.title_gain /= 100.0
            self.album_gain /= 100.0
            self.title_peak /= 65535.0
            self.album_peak /= 65535.0

            self.sample_rate = RATES[(flags >> 16) & 0x0003]
            self.bitrate = 0
        # SV4-SV6
        else:
            header_dword = cdata.uint_le(header[0:4])
            self.version = (header_dword >> 11) & 0x03FF;
            if self.version < 4 or self.version > 6:
                raise MusepackHeaderError("not a Musepack file")
            self.bitrate = (header_dword >> 23) & 0x01FF;
            self.sample_rate = 44100
            if self.version >= 5:
                frames = cdata.uint_le(header[4:8])
            else:
                frames = cdata.ushort_le(header[6:8])
            if self.version < 6:
                frames -= 1
        self.channels = 2
        self.length = float(frames * 1152 - 576) / self.sample_rate
        if not self.bitrate and self.length != 0:
            fileobj.seek(0, 2)
            self.bitrate = int(fileobj.tell() * 8 / (self.length * 1000) + 0.5)

开发者ID:Sophist-UK，项目名称:mutagen，代码行数:49，代码来源:musepack.py

示例8: load

    def load(self, fileobj, errors='replace', framing=True):
        """Parse a Vorbis comment from a file-like object.

        Keyword arguments:

        * errors:
            'strict', 'replace', or 'ignore'. This affects Unicode decoding
            and how other malformed content is interpreted.
        * framing -- if true, fail if a framing bit is not present

        Framing bits are required by the Vorbis comment specification,
        but are not used in FLAC Vorbis comment blocks.
        """

        try:
            vendor_length = cdata.uint_le(fileobj.read(4))
            self.vendor = fileobj.read(vendor_length).decode('utf-8', errors)
            count = cdata.uint_le(fileobj.read(4))
            for i in xrange(count):
                length = cdata.uint_le(fileobj.read(4))
                try:
                    string = fileobj.read(length).decode('utf-8', errors)
                except (OverflowError, MemoryError):
                    raise error("cannot read %d bytes, too large" % length)
                try:
                    tag, value = string.split('=', 1)
                except ValueError as err:
                    if errors == "ignore":
                        continue
                    elif errors == "replace":
                        tag, value = u"unknown%d" % i, string
                    else:
                        reraise(VorbisEncodingError, err, sys.exc_info()[2])
                try:
                    tag = tag.encode('ascii', errors)
                except UnicodeEncodeError:
                    raise VorbisEncodingError("invalid tag name %r" % tag)
                else:
                    # string keys in py3k
                    if PY3:
                        tag = tag.decode("ascii")
                    if is_valid_key(tag):
                        self.append((tag, value))

            if framing and not bytearray(fileobj.read(1))[0] & 0x01:
                raise VorbisUnsetFrameError("framing bit was unset")
        except (cdata.error, TypeError):
            raise error("file is not a valid Vorbis comment")

开发者ID:4everGhost，项目名称:PlexKodiConnect，代码行数:48，代码来源:_vorbis.py

示例9: init

 def __init__(self, fileobj, offset):
     fileobj.seek(offset or 0)
     header = fileobj.read(18)
     if len(header) != 18 or not header.startswith("TTA"):
         raise TrueAudioHeaderError("TTA header not found")
     self.sample_rate = cdata.int_le(header[10:14])
     samples = cdata.uint_le(header[14:18])
     self.length = float(samples) / self.sample_rate

开发者ID:Chitz，项目名称:album-art-fixer，代码行数:8，代码来源:trueaudio.py

示例10: __parse_tag

    def __parse_tag(self, tag, count):
        fileobj = StringIO(tag)

        for i in range(count):
            size = cdata.uint_le(fileobj.read(4))
            flags = cdata.uint_le(fileobj.read(4))

            # Bits 1 and 2 bits are flags, 0-3
            # Bit 0 is read/write flag, ignored
            kind = (flags & 6) >> 1
            if kind == 3:
                raise APEBadItemError("value type must be 0, 1, or 2")
            key = value = fileobj.read(1)
            while key[-1:] != "\x00" and value:
                value = fileobj.read(1)
                key += value
            if key[-1:] == "\x00":
                key = key[:-1]
            value = fileobj.read(size)
            self[key] = APEValue(value, kind)

开发者ID:lordsutch，项目名称:pytivo，代码行数:20，代码来源:apev2.py

示例11: __parse_sv467

    def __parse_sv467(self, fileobj):
        fileobj.seek(-4, 1)
        header = fileobj.read(32)
        if len(header) != 32:
            raise MusepackHeaderError("not a Musepack file")

        # SV7
        if header.startswith(b"MP+"):
            self.version = bytearray(header)[3] & 0xF
            if self.version < 7:
                raise MusepackHeaderError("not a Musepack file")
            frames = cdata.uint_le(header[4:8])
            flags = cdata.uint_le(header[8:12])

            self.title_peak, self.title_gain = struct.unpack(
                "<Hh", header[12:16])
            self.album_peak, self.album_gain = struct.unpack(
                "<Hh", header[16:20])
            self.title_gain /= 100.0
            self.album_gain /= 100.0
            self.title_peak /= 65535.0
            self.album_peak /= 65535.0

            self.sample_rate = RATES[(flags >> 16) & 0x0003]
            self.bitrate = 0
        # SV4-SV6
        else:
            header_dword = cdata.uint_le(header[0:4])
            self.version = (header_dword >> 11) & 0x03FF
            if self.version < 4 or self.version > 6:
                raise MusepackHeaderError("not a Musepack file")
            self.bitrate = (header_dword >> 23) & 0x01FF
            self.sample_rate = 44100
            if self.version >= 5:
                frames = cdata.uint_le(header[4:8])
            else:
                frames = cdata.ushort_le(header[6:8])
            if self.version < 6:
                frames -= 1
        self.channels = 2
        self.length = float(frames * 1152 - 576) / self.sample_rate

开发者ID:svetlio2，项目名称:hackbg，代码行数:41，代码来源:musepack.py

示例12: load

    def load(self):
        data = self.fileobj.read(FormatChunk.CHUNK_SIZE)
        if len(data) != FormatChunk.CHUNK_SIZE:
            raise error("DSF chunk truncated")

        self.chunk_header = data[0:4]
        if self.chunk_header != b"fmt ":
            raise error("DSF fmt header not found")

        self.chunk_size = cdata.ulonglong_le(data[4:12])
        if self.chunk_size != FormatChunk.CHUNK_SIZE:
            raise error("DSF dsd header size mismatch")

        self.format_version = cdata.uint_le(data[12:16])
        if self.format_version != FormatChunk.VERSION:
            raise error("Unsupported format version")

        self.format_id = cdata.uint_le(data[16:20])
        if self.format_id != FormatChunk.FORMAT_DSD_RAW:
            raise error("Unsupported format ID")

        self.channel_type = cdata.uint_le(data[20:24])
        self.channel_num = cdata.uint_le(data[24:28])
        self.sampling_frequency = cdata.uint_le(data[28:32])
        self.bits_per_sample = cdata.uint_le(data[32:36])
        self.sample_count = cdata.ulonglong_le(data[36:44])

开发者ID:SerhatG，项目名称:nzbToMedia，代码行数:26，代码来源:dsf.py

示例13: init

 def __init__(self, fileobj, offset=None):
     # Warning, offset ignored!
     fileobj.seek(0)
     dsd_header = fileobj.read(28)
     if len(dsd_header) != 28 or not dsd_header.startswith("DSD "):
         raise DSFHeaderError("DSF dsd header not found")
     self.file_size = cdata.ulonglong_le(dsd_header[12:20])
     self.id3_location = cdata.ulonglong_le(dsd_header[20:28])
     fmt_header = fileobj.read(52)
     if len(fmt_header) != 52 or not fmt_header.startswith("fmt "):
         raise DSFHeaderError("DSF fmt header not found")
     self.format_version = cdata.uint_le(fmt_header[12:16])
     self.format_id = cdata.uint_le(fmt_header[16:20])
     self.channel_type = cdata.uint_le(fmt_header[20:24])
     self.channel_num = cdata.uint_le(fmt_header[24:28])
     self.sample_rate = cdata.uint_le(fmt_header[28:32])
     self.bits_per_sample = cdata.uint_le(fmt_header[32:36])
     samples = cdata.ulonglong_le(fmt_header[36:44])
     self.length = float(samples) / self.sample_rate

开发者ID:LendyZhang，项目名称:dsf2flac，代码行数:19，代码来源:dsf.py

示例14: from_fileobj

    def from_fileobj(cls, fileobj):
        """A new _WavPackHeader or raises WavPackHeaderError"""

        header = fileobj.read(32)
        if len(header) != 32 or not header.startswith(b"wvpk"):
            raise WavPackHeaderError("not a WavPack header: %r" % header)

        block_size = cdata.uint_le(header[4:8])
        version = cdata.ushort_le(header[8:10])
        track_no = ord(header[10:11])
        index_no = ord(header[11:12])
        samples = cdata.uint_le(header[12:16])
        if samples == 2 ** 32 - 1:
            samples = -1
        block_index = cdata.uint_le(header[16:20])
        block_samples = cdata.uint_le(header[20:24])
        flags = cdata.uint_le(header[24:28])
        crc = cdata.uint_le(header[28:32])

        return _WavPackHeader(block_size, version, track_no, index_no,
                              samples, block_index, block_samples, flags, crc)

开发者ID:Allifreyr，项目名称:plexpy，代码行数:21，代码来源:wavpack.py

示例15: test_uint_le

 def test_uint_le(self):
     self.failUnlessEqual(cdata.uint_le(self.ZERO), 0)
     self.failUnlessEqual(cdata.uint_le(self.LEONE), 1)
     self.failUnlessEqual(cdata.uint_le(self.BEONE), 16777216)
     self.failUnlessEqual(cdata.uint_le(self.NEGONE), 2**32-1)

开发者ID:fourth-4，项目名称:mutagen，代码行数:5，代码来源:test__util.py

注：本文中的mutagen._util.cdata.uint_le函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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Python cdata.uint_le函数代码示例

示例1: __parse_tag

示例2: __fill_missing

示例3: load

示例4: init

示例5: init

示例6: test_uint

示例7: init

示例8: load

示例9: init

示例10: __parse_tag

示例11: __parse_sv467

示例12: load

示例13: init

示例14: from_fileobj

示例15: test_uint_le

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Python cdata.uint_le函数代码示例

示例1: __parse_tag

示例2: __fill_missing

示例3: load

示例4: __init__

示例5: __init__

示例6: test_uint

示例7: __init__

示例8: load

示例9: __init__

示例10: __parse_tag

示例11: __parse_sv467

示例12: load

示例13: __init__

示例14: from_fileobj

示例15: test_uint_le

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Python util.grid_equal函数代码示例

Python util.get_worker_name函数代码示例

Python util.get_webmention_target函数代

Python util.get_uuid函数代码示例

Python util.get_type_by_name函数代码示例

Python util.grid_equal函数代码示例

Python util.get_worker_name函数代码示例

Python util.get_webmention_target函数代

Python util.get_uuid函数代码示例

Python util.get_type_by_name函数代码示例

Python util.get_stdout函数代码示例

关于我们

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示例4: init

示例5: init

示例7: init

示例9: init

示例13: init