EmbLogic » multiple data compression

2 bit mdc successfully done.

Amardeep Rawat — Sat, 28 Feb 2015 11:13:33 +0000

RCS file: header.h,v
Working file: header.h
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description:
This is header file
define prototype for compress decompress and master_array function
include stdio.h stdlib.h fcntl.h string.h
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RCS file: mdc.c,v
Working file: mdc.c
head: 1.1
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description:
This is mdc.c file
implement function for location and master array.
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revision 1.1 locked by: root;
date: 2015/02/28 11:07:07; author: root; state: Exp;
Initial revision
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Implemented successfully 4 bit compression in Multiple Data Compression And Encryption Using Iterative Technique

Shashank Arora — Sat, 14 Feb 2015 19:32:53 +0000

RCS file: projectmdc.c,v

Working file: projectmdc.c

head: 1.15

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total revisions: 15;	selected revisions: 15

description:

Introduce header.h file

create datain_file text file and open the
content through file decriptor

read the content from datain_file text file

Use the argc to count the no. of arguements

And argv to store the string in argv array

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revision 1.15	locked by: root;

date: 2015/02/14 12:39:24;  author: root; 
state: Exp;  lines: +110 -46

done with 4 bit compression

create compressed_data() and pass 2 copy of
arguement.

file discriptor and second pass the master array

read file and compare with master array index

previously using printf but compression is not
done properly

then simply convert integer to character

and write the compressed and encrypted data into
compressed_data file successfully.

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revision 1.14

date: 2015/02/12 13:07:03;  author: root; 
state: Exp;  lines: +8 -0

*** empty log message ***

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revision 1.13

date: 2015/02/09 19:31:30;  author: root; 
state: Exp;  lines: +8 -7

create readchar() function to read the 'ch' from
file and compress the data

create no_of_bits() function to how much bits
are required for compress data

create file_open() function to fetch the first
arguement

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revision 1.12

date: 2015/02/09 19:18:10;  author: root; 
state: Exp;  lines: +70 -66

Introduce function in MDC

convert codes into smaller function

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revision 1.11

date: 2015/02/05 14:40:28;  author: root; 
state: Exp;  lines: +30 -1

Design the logic for how many data bits are
required for compressed data

by using if else condition

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revision 1.10

date: 2015/02/05 13:47:56;  author: root; 
state: Exp;  lines: +3 -2

Now, count the number of compressed character

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revision 1.9

date: 2015/02/05 13:39:25;  author: root; 
state: Exp;  lines: +1 -1

introduce break in flag = 0.

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revision 1.8

date: 2015/02/05 13:30:27;  author: root; 
state: Exp;  lines: +21 -10

Now able to compress the data in datain_file

read data from file and compare it with master
array

introduce flags

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revision 1.7

date: 2015/02/05 11:56:06;  author: root; 
state: Exp;  lines: +4 -4

modified the program just change the value of
charc

change the malloc arguement

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revision 1.6

date: 2015/02/05 11:32:07;  author: root; 
state: Exp;  lines: +19 -18

Introduce malloc and realloc function

read character one by one and realloc the memory
successfully

introduce master array and print string on
display

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revision 1.5

date: 2015/02/05 10:47:13;  author: root; 
state: Exp;  lines: +1 -1

change the format specifier in argv1

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revision 1.4

date: 2015/02/05 10:46:12;  author: root; 
state: Exp;  lines: +1 -1

*** empty log message ***

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revision 1.3

date: 2015/02/05 10:43:10;  author: root; 
state: Exp;  lines: +25 -8

*** empty log message ***

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revision 1.2

date: 2015/02/05 08:25:39;  author: root; 
state: Exp;  lines: +7 -2

just checking the arguement

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revision 1.1

date: 2015/02/04 11:00:43;  author: root; 
state: Exp;

Initial revision

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Completed MDC (Multiple data compression) in ‘c’

Joon Vichitra — Tue, 02 Sep 2014 15:38:54 +0000

RCS file: RCS/header.h,v
Working file: header.h
head: 1.3
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total revisions: 3; selected revisions: 3
description:
All header file are included in this file
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revision 1.3
date: 2014/08/30 20:12:53; author: root; state: Exp; lines: +5 -1
declare function
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revision 1.2
date: 2014/08/30 16:21:24; author: root; state: Exp; lines: +2 -0
declare c_write function
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revision 1.1
date: 2014/08/28 18:01:10; author: root; state: Exp;
Initial revision
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RCS file: RCS/main.c,v
Working file: main.c
head: 1.5
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description:
main file
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revision 1.5
date: 2014/08/30 20:11:15; author: root; state: Exp; lines: +6 -4
call decompress function and recover original string with the help of master array
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revision 1.4
date: 2014/08/30 14:27:27; author: root; state: Exp; lines: +1 -1
get position in master array
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revision 1.3
date: 2014/08/30 12:48:25; author: root; state: Exp; lines: +1 -0
create compress function
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revision 1.2
date: 2014/08/28 18:17:20; author: root; state: Exp; lines: +2 -1
Got Code length sucessfully
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revision 1.1
date: 2014/08/28 17:59:22; author: root; state: Exp;
Initial revision
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RCS file: RCS/function.c,v
Working file: function.c
head: 1.7
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total revisions: 7; selected revisions: 7
description:
Function file where all functions are defined
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revision 1.7
date: 2014/08/31 15:01:44; author: root; state: Exp; lines: +3 -2
chnage the appearance of output
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revision 1.6
date: 2014/08/30 20:12:23; author: root; state: Exp; lines: +47 -17
define function to decompress and recover the data
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revision 1.5
date: 2014/08/30 16:20:29; author: root; state: Exp; lines: +35 -35
write compressed data into new file
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revision 1.4
date: 2014/08/30 14:27:53; author: root; state: Exp; lines: +45 -9
get position in master array
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revision 1.3
date: 2014/08/30 12:48:58; author: root; state: Exp; lines: +29 -16
rectify the master function as it was reallocating more memory priviously
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revision 1.2
date: 2014/08/28 18:18:51; author: root; state: Exp; lines: +4 -1
Define Code length function
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revision 1.1
date: 2014/08/28 18:00:07; author: root; state: Exp;
Initial revision
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