Video Editing

1. Don't have the money to buy Adobe Premiere Pro but want to learn professional editing!

Solution: DaVinci Resolve

Big Hollywood movies are using this software for color grading. It's free version is so powerful that it does not require to go for paid version.

2. Don't know how to edit videos at all, want to learn easily?

Solution: CapCut for PC

It is as good  on PC  as it is on mobile and transitions are all ready, just drag and drop and the video is ready. 

৩. Want to create motion graphics or animation like After Effects?

Solution: Jitter Video

You can animate text and element in btowser. Output is just like Figma and Canava.

4. Need to purchase plugins for removing background noise or sound of fan!

Solution: Adobe Podcast Enhance

(This AI tool will automatically turn your audio into studio quality. Totally free.)

5. Want to remove background of your video without green screen?

Solution: CapCut Remove BG অথবা Unscreen

(There's no need for expensive tools to separate people or objects from videos, the background can be removed with one click.)

6. Can't find copyright-free music or sound effects to use in videos?

Solution: YouTube Audio Library

(There is a fear of copyright infringement when taking music from other sites, but this is YouTube's own free library and there are thousands of sounds here.)

৭. Video requires stock footage or royalty free video (Storyblocks Paid)!

Solution: Mixkit বা Pexels

()

৮. পিসি স্লো, সফটওয়্যার ইন্সটল করলে হ্যাং করে?

Solution: Clipchamp

(এটি উইন্ডোজ এর সাথে ফ্রিতেই থাকে অথবা ব্রাউজারে চালানো যায়। বেসিক এডিটিং, ট্রিম বা ভয়েসওভার দেয়ার জন্য এটি হালকা এবং ফাস্ট।)

৯. টিউটোরিয়াল বানানোর জন্য স্ক্রিন রেকর্ড করতে চান?

Solution: OBS Studio

(পৃথিবীর সেরা স্ক্রিন রেকর্ডার এবং এটি সম্পূর্ণ ওপেন সোর্স। গেমার এবং স্ট্রিমাররা সবাই এটি ব্যবহার করে।)

১০. ভিডিওর সাইজ অনেক বড়, কাউকে পাঠাতে পারছেন না?

Solution: HandBrake

(ভিডিওর কোয়ালিটি ঠিক রেখে সাইজ কমানোর জন্য এটি সেরা সফটওয়্যার।)

পোস্টটি আপনার টাইমলাইনে শেয়ার করে রাখুন, যাতে এডিটিং এর সময় টুলগুলো খুঁজতে না হয়। 

আপনার বন্ধুরাও যাতে ফ্রিতে এডিটিং শিখতে পারে তাই তাদের সাথেও শেয়ার করুন।

Roman Number

Roman number was introduced and used by Roman people.

There is no zero(0) symbol in roman number.

The chart of roman numerals :

I -1        II -2 III - 3 IV - 4 V - 5 VI - 6 VII - 7 VIII - 8 IX - 9 X - 10

XI - 11 XII - 12 XIII - 13 XIV - 14 XV - 15 XVI - 16 XVII - 17 XVIII - 18 XIX - 19 XX - 20

XXX - 30

XL - 40

L - 50

LX - 60

LXX - 70

LXXX - 80

XC - 90

C - 100

D - 500

M - 1000

Variables in C

In programming, we actually work with some data. Suppose we are going to add two numbers 3 and 5. So, where are we going to store this value and do addition? Here, we use variable. 

So, variable is an identifier that is used to store some value. Values are actually stored in memory location and variable is the name of that storage location or memory location. 

A variable represents a single data item. By variables or variable name, we can access the data item anywhere in the program. Different data item can be stored at any place of the program.

Variable is an identifier, so rules of identifier should be used here. 

-- Variables are constructed with digits, letters.

-- But variable name must begin with letter (underscore is also allowed at the beginning).

-- Variables are case sensitive.

-- Special symbols are not allowed(i.e. ",',% or blank space etc. ).

We can declare variable in following way:

data_type  variable_name 

We will discuss about data_type in another section. Example of some valid variables are as follows:

First_tag

max_number;

C Data type

The word data type tells that it describes the type of data.  We haven't yet studied variables, functions etc. Data type is used there to describe the type of data. C supports several different types of data, each of which may be represented differently within the computer’s memory. Below are 4 basic data types.

Data type	Description	Memory requirement	Value range
char	single character	1 byte	-128 to 127
int	integer quantity	2 bytes	-32,768 to 32,767
float	floating-point number	4 bytes	-2,147,483,648 to +2,147,483,647
double	double precision floating-point number	8 bytes	2.3E-308 to 1.7E+308

The above data types can be used in an extensive way by using qualifiers like signed,unsigned, short, long.

For example, int data type can be used as signed int or long int and char data type can be used as signed char or long char.
Signed int means it will consider the sign bit and it is same as normal int but in case of unsigned int the value range will be from 0 to 65,535.

The char data type represents individual characters. Hence, the char type will generally require only one byte of memory. Actually char type is of integer type.

With most compilers, a char data type will permit a range of values extending from 0 to 255. Some compilers represent the char data type as having a range of values extending from -128 to +127. There may also be unsigned char data (with typical values ranging from 0 to 255), or signed char data (with values ranging from -128 to +127).

Keywords and Identifiers of C Language

Identifiers: 
Identifiers are names that are given to various program elements, such as variables, functions and arrays. These are user-defined. Identifiers consist of letters, digits and some characters but the first letter must be a letter. Generally lowercase letter is used but uppercase letter can also be used. Uppercase and lowercase letters are not interchangeable.

Identifiers can be of any length but typically it accepts 31 characters.

The following names are valid identifiers.

a   x   xy   firstname  lastName  area_of_circle   _length  test18

The followings are not valid identifiers.
         18test                   The first character must be a letter
         "xx"                      Illegal character "
         first name             Blank space
         last-name              Illegal character -

Keywords:

In C programming language, there are some certain reserve words. These reserve words are called Keyword. Keywords can be used only in particular purpose that is defined in language. So, keywords cannot be used as identifiers. Keywords have standard predefined meanings.

C keyword list is below:

      

Keywords in C Language

auto	double	int	struct
break	else	long	switch
case	enum	register	typedef
char	extern	return	union
continue	for	signed	void
do	if	static	while
default	goto	sizeof	volatile
const	float	short	unsigned

Note that the keywords are all lowercase. Since uppercase and lowercase characters are not equivalent, it is possible to utilize an uppercase keyword as an identifier. Normally, however, this is not done, as it is considered a poor programming practice.

C Character Set

Character set is important for any computer languages because this character is understood by the compiler. To write a program, we code, but the code has to be meaningful to the compiler. To write statement, expression, variable or custom function name, this are formed from this computer set.

C character sets are belows:

• Uppercase letter A to Z
• Lowercase letter a to z
• The digit 0 to 9
• And some special character sets
  +    -      *    /    =    %   &    # 
  !     ?     ^    "      '   ~      \      |
  <     >   (      )      {    }     [      ]
  :      ;     .     ,       _

Most versions of the language also allow certain other characters, such as @ and $, to be included within strings and comments. It also allow some White space characters. These are;

• \b blank space
• \t horizontal tab
• \v vertical tab
• \r carriage return
• \f form feed
• \n new line 
• \\ Back slash
• \’ Single quote
• \" Double quote
• \? Question mark
• \0 Null
• \a Alarm (Audible Note)