Python chunk.Chunk() Examples

The following are 30 code examples of chunk.Chunk(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module chunk , or try the search function .
Example #1
Source File: aifc.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up
def initfp(self, file):
        self._version = 0
        self._convert = None
        self._markers = []
        self._soundpos = 0
        self._file = file
        chunk = Chunk(file)
        if chunk.getname() != b'FORM':
            raise Error('file does not start with FORM id')
        formdata = chunk.read(4)
        if formdata == b'AIFF':
            self._aifc = 0
        elif formdata == b'AIFC':
            self._aifc = 1
        else:
            raise Error('not an AIFF or AIFF-C file')
        self._comm_chunk_read = 0
        while 1:
            self._ssnd_seek_needed = 1
            try:
                chunk = Chunk(self._file)
            except EOFError:
                break
            chunkname = chunk.getname()
            if chunkname == b'COMM':
                self._read_comm_chunk(chunk)
                self._comm_chunk_read = 1
            elif chunkname == b'SSND':
                self._ssnd_chunk = chunk
                dummy = chunk.read(8)
                self._ssnd_seek_needed = 0
            elif chunkname == b'FVER':
                self._version = _read_ulong(chunk)
            elif chunkname == b'MARK':
                self._readmark(chunk)
            chunk.skip()
        if not self._comm_chunk_read or not self._ssnd_chunk:
            raise Error('COMM chunk and/or SSND chunk missing') 
Example #2
Source File: wave.py    From unity-python with MIT License 5 votes vote down vote up
def initfp(self, file):
        self._convert = None
        self._soundpos = 0
        self._file = Chunk(file, bigendian = 0)
        if self._file.getname() != 'RIFF':
            raise Error, 'file does not start with RIFF id'
        if self._file.read(4) != '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 == 'fmt ':
                self._read_fmt_chunk(chunk)
                self._fmt_chunk_read = 1
            elif chunkname == 'data':
                if not self._fmt_chunk_read:
                    raise Error, 'data chunk before fmt chunk'
                self._data_chunk = chunk
                self._nframes = chunk.chunksize // self._framesize
                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' 
Example #3
Source File: wave.py    From PokemonGo-DesktopMap with MIT License 5 votes vote down vote up
def initfp(self, file):
        self._convert = None
        self._soundpos = 0
        self._file = Chunk(file, bigendian = 0)
        if self._file.getname() != 'RIFF':
            raise Error, 'file does not start with RIFF id'
        if self._file.read(4) != '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 == 'fmt ':
                self._read_fmt_chunk(chunk)
                self._fmt_chunk_read = 1
            elif chunkname == 'data':
                if not self._fmt_chunk_read:
                    raise Error, 'data chunk before fmt chunk'
                self._data_chunk = chunk
                self._nframes = chunk.chunksize // self._framesize
                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' 
Example #4
Source File: wav.py    From Sushi with MIT License 5 votes vote down vote up
def __init__(self, path):
        super(DownmixedWavFile, self).__init__()
        self._file = open(path, 'rb')
        try:
            riff = Chunk(self._file, bigendian=False)
            if riff.getname() != 'RIFF':
                raise SushiError('File does not start with RIFF id')
            if riff.read(4) != 'WAVE':
                raise SushiError('Not a WAVE file')

            fmt_chunk_read = False
            data_chink_read = False
            file_size = os.path.getsize(path)

            while True:
                try:
                    chunk = Chunk(self._file, bigendian=False)
                except EOFError:
                    break

                if chunk.getname() == 'fmt ':
                    self._read_fmt_chunk(chunk)
                    fmt_chunk_read = True
                elif chunk.getname() == 'data':
                    if file_size > 0xFFFFFFFF:
                        # large broken wav
                        self.frames_count = (file_size - self._file.tell()) // self.frame_size
                    else:
                        self.frames_count = chunk.chunksize // self.frame_size
                    data_chink_read = True
                    break
                chunk.skip()
            if not fmt_chunk_read or not data_chink_read:
                raise SushiError('Invalid WAV file')
        except:
            self.close()
            raise 
Example #5
Source File: wave.py    From Carnets with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up
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._nframes = chunk.chunksize // self._framesize
                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') 
Example #6
Source File: wave.py    From RevitBatchProcessor with GNU General Public License v3.0 5 votes vote down vote up
def initfp(self, file):
        self._convert = None
        self._soundpos = 0
        self._file = Chunk(file, bigendian = 0)
        if self._file.getname() != 'RIFF':
            raise Error, 'file does not start with RIFF id'
        if self._file.read(4) != '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 == 'fmt ':
                self._read_fmt_chunk(chunk)
                self._fmt_chunk_read = 1
            elif chunkname == 'data':
                if not self._fmt_chunk_read:
                    raise Error, 'data chunk before fmt chunk'
                self._data_chunk = chunk
                self._nframes = chunk.chunksize // self._framesize
                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' 
Example #7
Source File: wave.py    From android_universal with MIT License 5 votes vote down vote up
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._nframes = chunk.chunksize // self._framesize
                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') 
Example #8
Source File: aifc.py    From android_universal with MIT License 5 votes vote down vote up
def initfp(self, file):
        self._version = 0
        self._convert = None
        self._markers = []
        self._soundpos = 0
        self._file = file
        chunk = Chunk(file)
        if chunk.getname() != b'FORM':
            raise Error('file does not start with FORM id')
        formdata = chunk.read(4)
        if formdata == b'AIFF':
            self._aifc = 0
        elif formdata == b'AIFC':
            self._aifc = 1
        else:
            raise Error('not an AIFF or AIFF-C file')
        self._comm_chunk_read = 0
        self._ssnd_chunk = None
        while 1:
            self._ssnd_seek_needed = 1
            try:
                chunk = Chunk(self._file)
            except EOFError:
                break
            chunkname = chunk.getname()
            if chunkname == b'COMM':
                self._read_comm_chunk(chunk)
                self._comm_chunk_read = 1
            elif chunkname == b'SSND':
                self._ssnd_chunk = chunk
                dummy = chunk.read(8)
                self._ssnd_seek_needed = 0
            elif chunkname == b'FVER':
                self._version = _read_ulong(chunk)
            elif chunkname == b'MARK':
                self._readmark(chunk)
            chunk.skip()
        if not self._comm_chunk_read or not self._ssnd_chunk:
            raise Error('COMM chunk and/or SSND chunk missing') 
Example #9
Source File: wave.py    From odoo13-x64 with GNU General Public License v3.0 5 votes vote down vote up
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._nframes = chunk.chunksize // self._framesize
                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') 
Example #10
Source File: wave.py    From canape with GNU General Public License v3.0 5 votes vote down vote up
def initfp(self, file):
        self._convert = None
        self._soundpos = 0
        self._file = Chunk(file, bigendian = 0)
        if self._file.getname() != 'RIFF':
            raise Error, 'file does not start with RIFF id'
        if self._file.read(4) != '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 == 'fmt ':
                self._read_fmt_chunk(chunk)
                self._fmt_chunk_read = 1
            elif chunkname == 'data':
                if not self._fmt_chunk_read:
                    raise Error, 'data chunk before fmt chunk'
                self._data_chunk = chunk
                self._nframes = chunk.chunksize // self._framesize
                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' 
Example #11
Source File: aifc.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up
def initfp(self, file):
        self._version = 0
        self._convert = None
        self._markers = []
        self._soundpos = 0
        self._file = file
        chunk = Chunk(file)
        if chunk.getname() != b'FORM':
            raise Error('file does not start with FORM id')
        formdata = chunk.read(4)
        if formdata == b'AIFF':
            self._aifc = 0
        elif formdata == b'AIFC':
            self._aifc = 1
        else:
            raise Error('not an AIFF or AIFF-C file')
        self._comm_chunk_read = 0
        while 1:
            self._ssnd_seek_needed = 1
            try:
                chunk = Chunk(self._file)
            except EOFError:
                break
            chunkname = chunk.getname()
            if chunkname == b'COMM':
                self._read_comm_chunk(chunk)
                self._comm_chunk_read = 1
            elif chunkname == b'SSND':
                self._ssnd_chunk = chunk
                dummy = chunk.read(8)
                self._ssnd_seek_needed = 0
            elif chunkname == b'FVER':
                self._version = _read_ulong(chunk)
            elif chunkname == b'MARK':
                self._readmark(chunk)
            chunk.skip()
        if not self._comm_chunk_read or not self._ssnd_chunk:
            raise Error('COMM chunk and/or SSND chunk missing') 
Example #12
Source File: wave.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up
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._nframes = chunk.chunksize // self._framesize
                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') 
Example #13
Source File: wave.py    From Splunking-Crime with GNU Affero General Public License v3.0 5 votes vote down vote up
def initfp(self, file):
        self._convert = None
        self._soundpos = 0
        self._file = Chunk(file, bigendian = 0)
        if self._file.getname() != 'RIFF':
            raise Error, 'file does not start with RIFF id'
        if self._file.read(4) != '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 == 'fmt ':
                self._read_fmt_chunk(chunk)
                self._fmt_chunk_read = 1
            elif chunkname == 'data':
                if not self._fmt_chunk_read:
                    raise Error, 'data chunk before fmt chunk'
                self._data_chunk = chunk
                self._nframes = chunk.chunksize // self._framesize
                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' 
Example #14
Source File: wave.py    From datafari with Apache License 2.0 5 votes vote down vote up
def initfp(self, file):
        self._convert = None
        self._soundpos = 0
        self._file = Chunk(file, bigendian = 0)
        if self._file.getname() != 'RIFF':
            raise Error, 'file does not start with RIFF id'
        if self._file.read(4) != '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 == 'fmt ':
                self._read_fmt_chunk(chunk)
                self._fmt_chunk_read = 1
            elif chunkname == 'data':
                if not self._fmt_chunk_read:
                    raise Error, 'data chunk before fmt chunk'
                self._data_chunk = chunk
                self._nframes = chunk.chunksize // self._framesize
                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' 
Example #15
Source File: wave.py    From meddle with MIT License 5 votes vote down vote up
def initfp(self, file):
        self._convert = None
        self._soundpos = 0
        self._file = Chunk(file, bigendian = 0)
        if self._file.getname() != 'RIFF':
            raise Error, 'file does not start with RIFF id'
        if self._file.read(4) != '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 == 'fmt ':
                self._read_fmt_chunk(chunk)
                self._fmt_chunk_read = 1
            elif chunkname == 'data':
                if not self._fmt_chunk_read:
                    raise Error, 'data chunk before fmt chunk'
                self._data_chunk = chunk
                self._nframes = chunk.chunksize // self._framesize
                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' 
Example #16
Source File: aifc.py    From Imogen with MIT License 5 votes vote down vote up
def initfp(self, file):
        self._version = 0
        self._convert = None
        self._markers = []
        self._soundpos = 0
        self._file = file
        chunk = Chunk(file)
        if chunk.getname() != b'FORM':
            raise Error('file does not start with FORM id')
        formdata = chunk.read(4)
        if formdata == b'AIFF':
            self._aifc = 0
        elif formdata == b'AIFC':
            self._aifc = 1
        else:
            raise Error('not an AIFF or AIFF-C file')
        self._comm_chunk_read = 0
        self._ssnd_chunk = None
        while 1:
            self._ssnd_seek_needed = 1
            try:
                chunk = Chunk(self._file)
            except EOFError:
                break
            chunkname = chunk.getname()
            if chunkname == b'COMM':
                self._read_comm_chunk(chunk)
                self._comm_chunk_read = 1
            elif chunkname == b'SSND':
                self._ssnd_chunk = chunk
                dummy = chunk.read(8)
                self._ssnd_seek_needed = 0
            elif chunkname == b'FVER':
                self._version = _read_ulong(chunk)
            elif chunkname == b'MARK':
                self._readmark(chunk)
            chunk.skip()
        if not self._comm_chunk_read or not self._ssnd_chunk:
            raise Error('COMM chunk and/or SSND chunk missing') 
Example #17
Source File: wave.py    From Imogen with MIT License 5 votes vote down vote up
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._nframes = chunk.chunksize // self._framesize
                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') 
Example #18
Source File: wave.py    From ironpython2 with Apache License 2.0 5 votes vote down vote up
def initfp(self, file):
        self._convert = None
        self._soundpos = 0
        self._file = Chunk(file, bigendian = 0)
        if self._file.getname() != 'RIFF':
            raise Error, 'file does not start with RIFF id'
        if self._file.read(4) != '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 == 'fmt ':
                self._read_fmt_chunk(chunk)
                self._fmt_chunk_read = 1
            elif chunkname == 'data':
                if not self._fmt_chunk_read:
                    raise Error, 'data chunk before fmt chunk'
                self._data_chunk = chunk
                self._nframes = chunk.chunksize // self._framesize
                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' 
Example #19
Source File: aifc.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up
def initfp(self, file):
        self._version = 0
        self._convert = None
        self._markers = []
        self._soundpos = 0
        self._file = file
        chunk = Chunk(file)
        if chunk.getname() != b'FORM':
            raise Error('file does not start with FORM id')
        formdata = chunk.read(4)
        if formdata == b'AIFF':
            self._aifc = 0
        elif formdata == b'AIFC':
            self._aifc = 1
        else:
            raise Error('not an AIFF or AIFF-C file')
        self._comm_chunk_read = 0
        while 1:
            self._ssnd_seek_needed = 1
            try:
                chunk = Chunk(self._file)
            except EOFError:
                break
            chunkname = chunk.getname()
            if chunkname == b'COMM':
                self._read_comm_chunk(chunk)
                self._comm_chunk_read = 1
            elif chunkname == b'SSND':
                self._ssnd_chunk = chunk
                dummy = chunk.read(8)
                self._ssnd_seek_needed = 0
            elif chunkname == b'FVER':
                self._version = _read_ulong(chunk)
            elif chunkname == b'MARK':
                self._readmark(chunk)
            chunk.skip()
        if not self._comm_chunk_read or not self._ssnd_chunk:
            raise Error('COMM chunk and/or SSND chunk missing') 
Example #20
Source File: wave.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up
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._nframes = chunk.chunksize // self._framesize
                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') 
Example #21
Source File: wave.py    From UIFlow-Code with GNU General Public License v3.0 5 votes vote down vote up
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._nframes = chunk.chunksize // self._framesize
                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') 
Example #22
Source File: wave.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up
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._nframes = chunk.chunksize // self._framesize
                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') 
Example #23
Source File: wave.py    From oss-ftp with MIT License 5 votes vote down vote up
def initfp(self, file):
        self._convert = None
        self._soundpos = 0
        self._file = Chunk(file, bigendian = 0)
        if self._file.getname() != 'RIFF':
            raise Error, 'file does not start with RIFF id'
        if self._file.read(4) != '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 == 'fmt ':
                self._read_fmt_chunk(chunk)
                self._fmt_chunk_read = 1
            elif chunkname == 'data':
                if not self._fmt_chunk_read:
                    raise Error, 'data chunk before fmt chunk'
                self._data_chunk = chunk
                self._nframes = chunk.chunksize // self._framesize
                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' 
Example #24
Source File: wave.py    From Computable with MIT License 5 votes vote down vote up
def initfp(self, file):
        self._convert = None
        self._soundpos = 0
        self._file = Chunk(file, bigendian = 0)
        if self._file.getname() != 'RIFF':
            raise Error, 'file does not start with RIFF id'
        if self._file.read(4) != '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 == 'fmt ':
                self._read_fmt_chunk(chunk)
                self._fmt_chunk_read = 1
            elif chunkname == 'data':
                if not self._fmt_chunk_read:
                    raise Error, 'data chunk before fmt chunk'
                self._data_chunk = chunk
                self._nframes = chunk.chunksize // self._framesize
                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' 
Example #25
Source File: crawler.py    From DarkDarkGo with MIT License 5 votes vote down vote up
def _create_chunk(self):
        """
        Instantiate chunk object for crawler to use to create headers and documents. Create chunk file to be writen to.
        :return: Chunk object
        """
        self.chunk = Chunk(self.chunk_id)
        self.chunk.create_chunk()
        return self.chunk 
Example #26
Source File: wave.py    From BinderFilter with MIT License 5 votes vote down vote up
def initfp(self, file):
        self._convert = None
        self._soundpos = 0
        self._file = Chunk(file, bigendian = 0)
        if self._file.getname() != 'RIFF':
            raise Error, 'file does not start with RIFF id'
        if self._file.read(4) != '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 == 'fmt ':
                self._read_fmt_chunk(chunk)
                self._fmt_chunk_read = 1
            elif chunkname == 'data':
                if not self._fmt_chunk_read:
                    raise Error, 'data chunk before fmt chunk'
                self._data_chunk = chunk
                self._nframes = chunk.chunksize // self._framesize
                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' 
Example #27
Source File: aifc.py    From CTFCrackTools with GNU General Public License v3.0 4 votes vote down vote up
def initfp(self, file):
        self._version = 0
        self._decomp = None
        self._convert = None
        self._markers = []
        self._soundpos = 0
        self._file = file
        chunk = Chunk(file)
        if chunk.getname() != 'FORM':
            raise Error, 'file does not start with FORM id'
        formdata = chunk.read(4)
        if formdata == 'AIFF':
            self._aifc = 0
        elif formdata == 'AIFC':
            self._aifc = 1
        else:
            raise Error, 'not an AIFF or AIFF-C file'
        self._comm_chunk_read = 0
        while 1:
            self._ssnd_seek_needed = 1
            try:
                chunk = Chunk(self._file)
            except EOFError:
                break
            chunkname = chunk.getname()
            if chunkname == 'COMM':
                self._read_comm_chunk(chunk)
                self._comm_chunk_read = 1
            elif chunkname == 'SSND':
                self._ssnd_chunk = chunk
                dummy = chunk.read(8)
                self._ssnd_seek_needed = 0
            elif chunkname == 'FVER':
                self._version = _read_ulong(chunk)
            elif chunkname == 'MARK':
                self._readmark(chunk)
            chunk.skip()
        if not self._comm_chunk_read or not self._ssnd_chunk:
            raise Error, 'COMM chunk and/or SSND chunk missing'
        if self._aifc and self._decomp:
            import cl
            params = [cl.ORIGINAL_FORMAT, 0,
                  cl.BITS_PER_COMPONENT, self._sampwidth * 8,
                  cl.FRAME_RATE, self._framerate]
            if self._nchannels == 1:
                params[1] = cl.MONO
            elif self._nchannels == 2:
                params[1] = cl.STEREO_INTERLEAVED
            else:
                raise Error, 'cannot compress more than 2 channels'
            self._decomp.SetParams(params) 
Example #28
Source File: aifc.py    From unity-python with MIT License 4 votes vote down vote up
def initfp(self, file):
        self._version = 0
        self._decomp = None
        self._convert = None
        self._markers = []
        self._soundpos = 0
        self._file = file
        chunk = Chunk(file)
        if chunk.getname() != 'FORM':
            raise Error, 'file does not start with FORM id'
        formdata = chunk.read(4)
        if formdata == 'AIFF':
            self._aifc = 0
        elif formdata == 'AIFC':
            self._aifc = 1
        else:
            raise Error, 'not an AIFF or AIFF-C file'
        self._comm_chunk_read = 0
        self._ssnd_chunk = None
        while 1:
            self._ssnd_seek_needed = 1
            try:
                chunk = Chunk(self._file)
            except EOFError:
                break
            chunkname = chunk.getname()
            if chunkname == 'COMM':
                self._read_comm_chunk(chunk)
                self._comm_chunk_read = 1
            elif chunkname == 'SSND':
                self._ssnd_chunk = chunk
                dummy = chunk.read(8)
                self._ssnd_seek_needed = 0
            elif chunkname == 'FVER':
                self._version = _read_ulong(chunk)
            elif chunkname == 'MARK':
                self._readmark(chunk)
            chunk.skip()
        if not self._comm_chunk_read or not self._ssnd_chunk:
            raise Error, 'COMM chunk and/or SSND chunk missing'
        if self._aifc and self._decomp:
            import cl
            params = [cl.ORIGINAL_FORMAT, 0,
                  cl.BITS_PER_COMPONENT, self._sampwidth * 8,
                  cl.FRAME_RATE, self._framerate]
            if self._nchannels == 1:
                params[1] = cl.MONO
            elif self._nchannels == 2:
                params[1] = cl.STEREO_INTERLEAVED
            else:
                raise Error, 'cannot compress more than 2 channels'
            self._decomp.SetParams(params) 
Example #29
Source File: aifc.py    From CTFCrackTools with GNU General Public License v3.0 4 votes vote down vote up
def initfp(self, file):
        self._version = 0
        self._decomp = None
        self._convert = None
        self._markers = []
        self._soundpos = 0
        self._file = file
        chunk = Chunk(file)
        if chunk.getname() != 'FORM':
            raise Error, 'file does not start with FORM id'
        formdata = chunk.read(4)
        if formdata == 'AIFF':
            self._aifc = 0
        elif formdata == 'AIFC':
            self._aifc = 1
        else:
            raise Error, 'not an AIFF or AIFF-C file'
        self._comm_chunk_read = 0
        while 1:
            self._ssnd_seek_needed = 1
            try:
                chunk = Chunk(self._file)
            except EOFError:
                break
            chunkname = chunk.getname()
            if chunkname == 'COMM':
                self._read_comm_chunk(chunk)
                self._comm_chunk_read = 1
            elif chunkname == 'SSND':
                self._ssnd_chunk = chunk
                dummy = chunk.read(8)
                self._ssnd_seek_needed = 0
            elif chunkname == 'FVER':
                self._version = _read_ulong(chunk)
            elif chunkname == 'MARK':
                self._readmark(chunk)
            chunk.skip()
        if not self._comm_chunk_read or not self._ssnd_chunk:
            raise Error, 'COMM chunk and/or SSND chunk missing'
        if self._aifc and self._decomp:
            import cl
            params = [cl.ORIGINAL_FORMAT, 0,
                  cl.BITS_PER_COMPONENT, self._sampwidth * 8,
                  cl.FRAME_RATE, self._framerate]
            if self._nchannels == 1:
                params[1] = cl.MONO
            elif self._nchannels == 2:
                params[1] = cl.STEREO_INTERLEAVED
            else:
                raise Error, 'cannot compress more than 2 channels'
            self._decomp.SetParams(params) 
Example #30
Source File: aifc.py    From canape with GNU General Public License v3.0 4 votes vote down vote up
def initfp(self, file):
        self._version = 0
        self._decomp = None
        self._convert = None
        self._markers = []
        self._soundpos = 0
        self._file = file
        chunk = Chunk(file)
        if chunk.getname() != 'FORM':
            raise Error, 'file does not start with FORM id'
        formdata = chunk.read(4)
        if formdata == 'AIFF':
            self._aifc = 0
        elif formdata == 'AIFC':
            self._aifc = 1
        else:
            raise Error, 'not an AIFF or AIFF-C file'
        self._comm_chunk_read = 0
        while 1:
            self._ssnd_seek_needed = 1
            try:
                chunk = Chunk(self._file)
            except EOFError:
                break
            chunkname = chunk.getname()
            if chunkname == 'COMM':
                self._read_comm_chunk(chunk)
                self._comm_chunk_read = 1
            elif chunkname == 'SSND':
                self._ssnd_chunk = chunk
                dummy = chunk.read(8)
                self._ssnd_seek_needed = 0
            elif chunkname == 'FVER':
                self._version = _read_ulong(chunk)
            elif chunkname == 'MARK':
                self._readmark(chunk)
            chunk.skip()
        if not self._comm_chunk_read or not self._ssnd_chunk:
            raise Error, 'COMM chunk and/or SSND chunk missing'
        if self._aifc and self._decomp:
            import cl
            params = [cl.ORIGINAL_FORMAT, 0,
                  cl.BITS_PER_COMPONENT, self._sampwidth * 8,
                  cl.FRAME_RATE, self._framerate]
            if self._nchannels == 1:
                params[1] = cl.MONO
            elif self._nchannels == 2:
                params[1] = cl.STEREO_INTERLEAVED
            else:
                raise Error, 'cannot compress more than 2 channels'
            self._decomp.SetParams(params)