PDFUtils.getBytesFromBits

All Samples(4) | Call(2) | Derive(0) | Import(2)

Makes the conversion between bits and bytes.

@param bitsStream: String representing a chain of bits
@return: A tuple (status,statusContent), where statusContent is the string containing the resulting bytes in case status = 0 or an error in case status = -1

Show Implementation

        def getBytesFromBits(bitsStream):
    '''
        Makes the conversion between bits and bytes.
        
        @param bitsStream: String representing a chain of bits
        @return: A tuple (status,statusContent), where statusContent is the string containing the resulting bytes in case status = 0 or an error in case status = -1
    '''
    if not isinstance(bitsStream,str):
        return (-1,'The bitsStream must be a string')
    bytes = ''
    if re.match('[01]*$',bitsStream):
        try:
            for i in range(0,len(bitsStream),8):
                bits = bitsStream[i:i+8]
                byte = chr(int(bits,2))
                bytes += byte
        except:
            return (-1,'Error in conversion from bits to bytes')
        return (0,bytes)
    else:
        return (-1,'The format of the bit stream is not correct')

src/t/h/thug-HEAD/src/peepdf/PDFFilters.py thug(Download)

 
import sys, zlib, lzw, struct
from PDFUtils import getNumsFromBytes, getBytesFromBits, getBitsFromNum
from ccitt import CCITTFax

						return (ret,outputBits)
					outputBitsStream += outputBits
		output = getBytesFromBits(outputBitsStream)
		return output
	# PNG prediction

src/c/l/classyPDF-HEAD/peepdf_classy/PDFFilters.py classyPDF(Download)

 
import sys, zlib, lzw, struct
from PDFUtils import getNumsFromBytes, getBytesFromBits, getBitsFromNum
 
def decodeStream(stream, filter, parameters = {}):

						return (ret,outputBits)
					outputBitsStream += outputBits
		output = getBytesFromBits(outputBitsStream)
		return output
	# PNG prediction