Python源码示例:cl.ORIGINAL_FORMAT

示例1
def _init_compression(self):
        if self._comptype == 'G722':
            self._convert = self._lin2adpcm
            return
        try:
            import cl
        except ImportError:
            if self._comptype == 'ULAW':
                try:
                    import audioop
                    self._convert = self._lin2ulaw
                    return
                except ImportError:
                    pass
            raise Error, 'cannot write compressed AIFF-C files'
        if self._comptype == 'ULAW':
            scheme = cl.G711_ULAW
        elif self._comptype == 'ALAW':
            scheme = cl.G711_ALAW
        else:
            raise Error, 'unsupported compression type'
        self._comp = cl.OpenCompressor(scheme)
        params = [cl.ORIGINAL_FORMAT, 0,
              cl.BITS_PER_COMPONENT, self._sampwidth * 8,
              cl.FRAME_RATE, self._framerate,
              cl.FRAME_BUFFER_SIZE, 100,
              cl.COMPRESSED_BUFFER_SIZE, 100]
        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._comp.SetParams(params)
        # the compressor produces a header which we ignore
        dummy = self._comp.Compress(0, '')
        self._convert = self._comp_data 
示例2
def _init_compression(self):
        if self._comptype == 'G722':
            self._convert = self._lin2adpcm
            return
        try:
            import cl
        except ImportError:
            if self._comptype in ('ULAW', 'ulaw'):
                try:
                    import audioop
                    self._convert = self._lin2ulaw
                    return
                except ImportError:
                    pass
            raise Error, 'cannot write compressed AIFF-C files'
        if self._comptype in ('ULAW', 'ulaw'):
            scheme = cl.G711_ULAW
        elif self._comptype in ('ALAW', 'alaw'):
            scheme = cl.G711_ALAW
        else:
            raise Error, 'unsupported compression type'
        self._comp = cl.OpenCompressor(scheme)
        params = [cl.ORIGINAL_FORMAT, 0,
              cl.BITS_PER_COMPONENT, self._sampwidth * 8,
              cl.FRAME_RATE, self._framerate,
              cl.FRAME_BUFFER_SIZE, 100,
              cl.COMPRESSED_BUFFER_SIZE, 100]
        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._comp.SetParams(params)
        # the compressor produces a header which we ignore
        dummy = self._comp.Compress(0, '')
        self._convert = self._comp_data 
示例3
def _init_compression(self):
        if self._comptype == 'G722':
            self._convert = self._lin2adpcm
            return
        try:
            import cl
        except ImportError:
            if self._comptype == 'ULAW':
                try:
                    import audioop
                    self._convert = self._lin2ulaw
                    return
                except ImportError:
                    pass
            raise Error, 'cannot write compressed AIFF-C files'
        if self._comptype == 'ULAW':
            scheme = cl.G711_ULAW
        elif self._comptype == 'ALAW':
            scheme = cl.G711_ALAW
        else:
            raise Error, 'unsupported compression type'
        self._comp = cl.OpenCompressor(scheme)
        params = [cl.ORIGINAL_FORMAT, 0,
              cl.BITS_PER_COMPONENT, self._sampwidth * 8,
              cl.FRAME_RATE, self._framerate,
              cl.FRAME_BUFFER_SIZE, 100,
              cl.COMPRESSED_BUFFER_SIZE, 100]
        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._comp.SetParams(params)
        # the compressor produces a header which we ignore
        dummy = self._comp.Compress(0, '')
        self._convert = self._comp_data 
示例4
def _init_compression(self):
        if self._comptype == 'G722':
            self._convert = self._lin2adpcm
            return
        try:
            import cl
        except ImportError:
            if self._comptype in ('ULAW', 'ulaw'):
                try:
                    import audioop
                    self._convert = self._lin2ulaw
                    return
                except ImportError:
                    pass
            raise Error, 'cannot write compressed AIFF-C files'
        if self._comptype in ('ULAW', 'ulaw'):
            scheme = cl.G711_ULAW
        elif self._comptype in ('ALAW', 'alaw'):
            scheme = cl.G711_ALAW
        else:
            raise Error, 'unsupported compression type'
        self._comp = cl.OpenCompressor(scheme)
        params = [cl.ORIGINAL_FORMAT, 0,
              cl.BITS_PER_COMPONENT, self._sampwidth * 8,
              cl.FRAME_RATE, self._framerate,
              cl.FRAME_BUFFER_SIZE, 100,
              cl.COMPRESSED_BUFFER_SIZE, 100]
        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._comp.SetParams(params)
        # the compressor produces a header which we ignore
        dummy = self._comp.Compress(0, '')
        self._convert = self._comp_data 
示例5
def _init_compression(self):
        if self._comptype == 'G722':
            self._convert = self._lin2adpcm
            return
        try:
            import cl
        except ImportError:
            if self._comptype in ('ULAW', 'ulaw'):
                try:
                    import audioop
                    self._convert = self._lin2ulaw
                    return
                except ImportError:
                    pass
            raise Error, 'cannot write compressed AIFF-C files'
        if self._comptype in ('ULAW', 'ulaw'):
            scheme = cl.G711_ULAW
        elif self._comptype in ('ALAW', 'alaw'):
            scheme = cl.G711_ALAW
        else:
            raise Error, 'unsupported compression type'
        self._comp = cl.OpenCompressor(scheme)
        params = [cl.ORIGINAL_FORMAT, 0,
              cl.BITS_PER_COMPONENT, self._sampwidth * 8,
              cl.FRAME_RATE, self._framerate,
              cl.FRAME_BUFFER_SIZE, 100,
              cl.COMPRESSED_BUFFER_SIZE, 100]
        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._comp.SetParams(params)
        # the compressor produces a header which we ignore
        dummy = self._comp.Compress(0, '')
        self._convert = self._comp_data 
示例6
def _init_compression(self):
        if self._comptype == 'G722':
            self._convert = self._lin2adpcm
            return
        try:
            import cl
        except ImportError:
            if self._comptype == 'ULAW':
                try:
                    import audioop
                    self._convert = self._lin2ulaw
                    return
                except ImportError:
                    pass
            raise Error, 'cannot write compressed AIFF-C files'
        if self._comptype == 'ULAW':
            scheme = cl.G711_ULAW
        elif self._comptype == 'ALAW':
            scheme = cl.G711_ALAW
        else:
            raise Error, 'unsupported compression type'
        self._comp = cl.OpenCompressor(scheme)
        params = [cl.ORIGINAL_FORMAT, 0,
              cl.BITS_PER_COMPONENT, self._sampwidth * 8,
              cl.FRAME_RATE, self._framerate,
              cl.FRAME_BUFFER_SIZE, 100,
              cl.COMPRESSED_BUFFER_SIZE, 100]
        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._comp.SetParams(params)
        # the compressor produces a header which we ignore
        dummy = self._comp.Compress(0, '')
        self._convert = self._comp_data 
示例7
def _init_compression(self):
        if self._comptype == 'G722':
            self._convert = self._lin2adpcm
            return
        try:
            import cl
        except ImportError:
            if self._comptype == 'ULAW':
                try:
                    import audioop
                    self._convert = self._lin2ulaw
                    return
                except ImportError:
                    pass
            raise Error, 'cannot write compressed AIFF-C files'
        if self._comptype == 'ULAW':
            scheme = cl.G711_ULAW
        elif self._comptype == 'ALAW':
            scheme = cl.G711_ALAW
        else:
            raise Error, 'unsupported compression type'
        self._comp = cl.OpenCompressor(scheme)
        params = [cl.ORIGINAL_FORMAT, 0,
              cl.BITS_PER_COMPONENT, self._sampwidth * 8,
              cl.FRAME_RATE, self._framerate,
              cl.FRAME_BUFFER_SIZE, 100,
              cl.COMPRESSED_BUFFER_SIZE, 100]
        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._comp.SetParams(params)
        # the compressor produces a header which we ignore
        dummy = self._comp.Compress(0, '')
        self._convert = self._comp_data 
示例8
def _init_compression(self):
        if self._comptype == 'G722':
            self._convert = self._lin2adpcm
            return
        try:
            import cl
        except ImportError:
            if self._comptype == 'ULAW':
                try:
                    import audioop
                    self._convert = self._lin2ulaw
                    return
                except ImportError:
                    pass
            raise Error, 'cannot write compressed AIFF-C files'
        if self._comptype == 'ULAW':
            scheme = cl.G711_ULAW
        elif self._comptype == 'ALAW':
            scheme = cl.G711_ALAW
        else:
            raise Error, 'unsupported compression type'
        self._comp = cl.OpenCompressor(scheme)
        params = [cl.ORIGINAL_FORMAT, 0,
              cl.BITS_PER_COMPONENT, self._sampwidth * 8,
              cl.FRAME_RATE, self._framerate,
              cl.FRAME_BUFFER_SIZE, 100,
              cl.COMPRESSED_BUFFER_SIZE, 100]
        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._comp.SetParams(params)
        # the compressor produces a header which we ignore
        dummy = self._comp.Compress(0, '')
        self._convert = self._comp_data 
示例9
def _init_compression(self):
        if self._comptype == 'G722':
            self._convert = self._lin2adpcm
            return
        try:
            import cl
        except ImportError:
            if self._comptype == 'ULAW':
                try:
                    import audioop
                    self._convert = self._lin2ulaw
                    return
                except ImportError:
                    pass
            raise Error, 'cannot write compressed AIFF-C files'
        if self._comptype == 'ULAW':
            scheme = cl.G711_ULAW
        elif self._comptype == 'ALAW':
            scheme = cl.G711_ALAW
        else:
            raise Error, 'unsupported compression type'
        self._comp = cl.OpenCompressor(scheme)
        params = [cl.ORIGINAL_FORMAT, 0,
              cl.BITS_PER_COMPONENT, self._sampwidth * 8,
              cl.FRAME_RATE, self._framerate,
              cl.FRAME_BUFFER_SIZE, 100,
              cl.COMPRESSED_BUFFER_SIZE, 100]
        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._comp.SetParams(params)
        # the compressor produces a header which we ignore
        dummy = self._comp.Compress(0, '')
        self._convert = self._comp_data 
示例10
def _init_compression(self):
        if self._comptype == 'G722':
            self._convert = self._lin2adpcm
            return
        try:
            import cl
        except ImportError:
            if self._comptype in ('ULAW', 'ulaw'):
                try:
                    import audioop
                    self._convert = self._lin2ulaw
                    return
                except ImportError:
                    pass
            raise Error, 'cannot write compressed AIFF-C files'
        if self._comptype in ('ULAW', 'ulaw'):
            scheme = cl.G711_ULAW
        elif self._comptype in ('ALAW', 'alaw'):
            scheme = cl.G711_ALAW
        else:
            raise Error, 'unsupported compression type'
        self._comp = cl.OpenCompressor(scheme)
        params = [cl.ORIGINAL_FORMAT, 0,
              cl.BITS_PER_COMPONENT, self._sampwidth * 8,
              cl.FRAME_RATE, self._framerate,
              cl.FRAME_BUFFER_SIZE, 100,
              cl.COMPRESSED_BUFFER_SIZE, 100]
        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._comp.SetParams(params)
        # the compressor produces a header which we ignore
        dummy = self._comp.Compress(0, '')
        self._convert = self._comp_data 
示例11
def _init_compression(self):
        if self._comptype == 'G722':
            self._convert = self._lin2adpcm
            return
        try:
            import cl
        except ImportError:
            if self._comptype in ('ULAW', 'ulaw'):
                try:
                    import audioop
                    self._convert = self._lin2ulaw
                    return
                except ImportError:
                    pass
            raise Error, 'cannot write compressed AIFF-C files'
        if self._comptype in ('ULAW', 'ulaw'):
            scheme = cl.G711_ULAW
        elif self._comptype in ('ALAW', 'alaw'):
            scheme = cl.G711_ALAW
        else:
            raise Error, 'unsupported compression type'
        self._comp = cl.OpenCompressor(scheme)
        params = [cl.ORIGINAL_FORMAT, 0,
              cl.BITS_PER_COMPONENT, self._sampwidth * 8,
              cl.FRAME_RATE, self._framerate,
              cl.FRAME_BUFFER_SIZE, 100,
              cl.COMPRESSED_BUFFER_SIZE, 100]
        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._comp.SetParams(params)
        # the compressor produces a header which we ignore
        dummy = self._comp.Compress(0, '')
        self._convert = self._comp_data 
示例12
def _init_compression(self):
        if self._comptype == 'G722':
            self._convert = self._lin2adpcm
            return
        try:
            import cl
        except ImportError:
            if self._comptype == 'ULAW':
                try:
                    import audioop
                    self._convert = self._lin2ulaw
                    return
                except ImportError:
                    pass
            raise Error, 'cannot write compressed AIFF-C files'
        if self._comptype == 'ULAW':
            scheme = cl.G711_ULAW
        elif self._comptype == 'ALAW':
            scheme = cl.G711_ALAW
        else:
            raise Error, 'unsupported compression type'
        self._comp = cl.OpenCompressor(scheme)
        params = [cl.ORIGINAL_FORMAT, 0,
              cl.BITS_PER_COMPONENT, self._sampwidth * 8,
              cl.FRAME_RATE, self._framerate,
              cl.FRAME_BUFFER_SIZE, 100,
              cl.COMPRESSED_BUFFER_SIZE, 100]
        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._comp.SetParams(params)
        # the compressor produces a header which we ignore
        dummy = self._comp.Compress(0, '')
        self._convert = self._comp_data 
示例13
def _init_compression(self):
        if self._comptype == 'G722':
            self._convert = self._lin2adpcm
            return
        try:
            import cl
        except ImportError:
            if self._comptype == 'ULAW':
                try:
                    import audioop
                    self._convert = self._lin2ulaw
                    return
                except ImportError:
                    pass
            raise Error, 'cannot write compressed AIFF-C files'
        if self._comptype == 'ULAW':
            scheme = cl.G711_ULAW
        elif self._comptype == 'ALAW':
            scheme = cl.G711_ALAW
        else:
            raise Error, 'unsupported compression type'
        self._comp = cl.OpenCompressor(scheme)
        params = [cl.ORIGINAL_FORMAT, 0,
              cl.BITS_PER_COMPONENT, self._sampwidth * 8,
              cl.FRAME_RATE, self._framerate,
              cl.FRAME_BUFFER_SIZE, 100,
              cl.COMPRESSED_BUFFER_SIZE, 100]
        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._comp.SetParams(params)
        # the compressor produces a header which we ignore
        dummy = self._comp.Compress(0, '')
        self._convert = self._comp_data 
示例14
def _init_compression(self):
        if self._comptype == 'G722':
            self._convert = self._lin2adpcm
            return
        try:
            import cl
        except ImportError:
            if self._comptype == 'ULAW':
                try:
                    import audioop
                    self._convert = self._lin2ulaw
                    return
                except ImportError:
                    pass
            raise Error, 'cannot write compressed AIFF-C files'
        if self._comptype == 'ULAW':
            scheme = cl.G711_ULAW
        elif self._comptype == 'ALAW':
            scheme = cl.G711_ALAW
        else:
            raise Error, 'unsupported compression type'
        self._comp = cl.OpenCompressor(scheme)
        params = [cl.ORIGINAL_FORMAT, 0,
              cl.BITS_PER_COMPONENT, self._sampwidth * 8,
              cl.FRAME_RATE, self._framerate,
              cl.FRAME_BUFFER_SIZE, 100,
              cl.COMPRESSED_BUFFER_SIZE, 100]
        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._comp.SetParams(params)
        # the compressor produces a header which we ignore
        dummy = self._comp.Compress(0, '')
        self._convert = self._comp_data 
示例15
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) 
示例16
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) 
示例17
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) 
示例18
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) 
示例19
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) 
示例20
def initfp(self, file):
        self._version = 0
        self._decomp = None
        self._convert = None
        self._markers = []
        self._soundpos = 0
        self._file = Chunk(file)
        if self._file.getname() != 'FORM':
            raise Error, 'file does not start with FORM id'
        formdata = self._file.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)
            elif chunkname in _skiplist:
                pass
            else:
                raise Error, 'unrecognized chunk type '+chunk.chunkname
            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) 
示例21
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) 
示例22
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) 
示例23
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) 
示例24
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) 
示例25
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) 
示例26
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) 
示例27
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) 
示例28
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)