Format of main () function

The arguments that a function expects are specified in a parenthesized parameter list following the function name. The keyword void enclosed with the parenthesis indicates that no “parameters” or “arguments” are expected by this routine. An opening brace {following main function and its parameter list marks the beginning of the function body and, similarly, the end of the function body is indicated by a closing brace} at the end.

The main () function

Every program has a special function named main. It is special because the execution of any program starts at the beginning of its main function. When a function is called, it is usually provided with a list of values called arguments or parameters. The parentheses () are used for passing parameters to a function.

Recursion

Recursion is the process whereby a construct operates on itself, In C, functions can be defined recursively – the function may directly or indirectly call itself in the course of its execution is the best programming language, so it is widely used in this world.

Portability

Although C machines the capabilities of many computers, it is independent of any particular machine architecture. With little care it is easy to write portable programs which can be run without change on a variety of hardware.

Is C is modular program?

Modular programs are easier to develop, correct and modify than programs constructed otherwise. The smaller segments used to construct a modular program are called modules. Since each module is designated to perform a specific function, the modules themselves are called functions in C.

Modular Programming

C by its very nature is a modular language. In programming, the term structure has two interrelated meanings. Programs whose structure consists of interrelated segments, arranged in a logical and easily understandable order to form an integrated and complete unit, are called modular programs.

Features of “C” language

C language’s data types and control structures are directly supported by most computers, resulting in the construction of efficient programs. It is independent of any particular machine architecture or operating system which makes it easy to write portable programs. It is this contribution of rich control structures and data types, ability to get close to computer hardware, efficiency, portability and conciseness that has contributed to the popularity of C.

Introduction about C

C has emerged as the mostly used programming language for software development. Its feature allows the development of well – structured programs. The language gets its name from being the successor to the B language (an interpreter based language). C language is widely used language in this world.

choices

All exists because they work very well. Any video camera can be used for digital cinema; there really are no rules. A filmmaker’s individual aesthetic sense is the only criteria. Camera options can be divided into four categories: digital cinema cameras intended to replace film as an acquisition media, high definition (HD) video cameras, standard definition (SD) progressive scan cameras and standard definition interlaced (NTPC and PAL) cameras.

A list of choices

So now that we have made it clear that film is a full partner in the digital cinema revolution, let’s take a look at the different digital cinematography alternatives that are available. There are more arriving every year. No format is “better” than another. They are all different tools for achieving the look a filmmaker wants. Some are expensive and designed to emulate film centric production workflows; others are affordable and accessible to every filmmaker.

Digital cinema cameras

Bayer pattern filtering follows a set arrangement and each of the six million pixels on Arri’s CMOS has an assigned red, green or blue value. Color images are recreated from the monochrome data the sensor generates. The first row of pixels alternates between green and red color filters. The second roe alternates between blue and green filters. The first row pattern repeats in the third row and the second row pattern repeats in the fourth row and so until the entire sensor is mapped for red, green and blue. Row 1: G R G R G R G R G R… Row 2: B G B G B G… Row 3: G R G R G R G R… Row 4: B G B G B G B G…

Digital cinema cameras

Arri’s D20 camera, Captures images using a single CMOS sensor that has an active picture area equivalent to 35mm PL-mount lens will work on this camera. Arri’s D20 uses the same rotating mirror shutter and optical view finder designs found in its film cameras. HD lenses designed for three CCD prism based imagers will not work on the D20. To capture color images using a monochrome CMOS sensor, the light from the lens passes through red, green and blue filters arranged in a Bayer pattern mask before striking the pixels on the CMOS sensor.

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Thompson’s Viper

Viper departs from traditional HD cameras because operators can decide to bypass the digital signal processing in the camera and output the raw data from the CCDs as 1920 × 1080 4:4:4 RGB, 10 bit log files through dual link HD-SDI, when the camera is in “Film stream” mode. Viper has three other output modes: as 4:4:4 RGB output as full bandwidth, full resolution video processed through the DSP for color balance, color gamut, gamma, Knee gamma, toe gamma and detail enhancement and multiple HD formats. The HD formats that can be output include: 1080P at frame rates of 23.98, 24, 25, 29.97, 30 fps; 1080i at frame rates of 50, 59.94 or 60 fps and 720p at frame rates of 23.98, 24, 25, 29.97, 30, 50 and 60 fps.

Thompson’s Viper

Thompson’s Viper camera relies on a prism based imager and three 2/3 inch CCD sensors, as do most professional HD or SD cameras it has a mechanical shutter, adjustable from 90 to 359 degrees and an electronic viewfinder. The viper uses HD lenses in B4 mounts. Thomson’s 9.2 million pixel Frame Transfer CCDs are able to capture images at the full resolution of the CCD in either the 1.78:1 or 2.35:1 aspect ratio by mapping the 1920 by 4320 pixel array using what Thomson calls dynamic pixel management.

more about Sony’s HDC-F950

Output from the HDC-F950 can also be recorded on a SRW-5000 HDCAM-SR recorder or a hard drive array. Multiple HD (Y Cr Cb) formats are supported including: 1080P at frame rates of 24, 25 or 30 fps and 1080i at the frame rates of 50 or 60 fps.

Sony’s HDC-F950

Sony’s HDC-F950 also relies on a prism based imager with 2/3 inch CCD sensors. The camera has an electronic shutter, electronic viewfinder and uses HD lenses in B4 mounts. Sony’s 2.2 million pixels FIT CCDs have an active picture area of 1920 by 1080 4:4:4 RGB, 10 bit log files via a single fiber optic cable to Sony’s SRW-1 recorder.

more about High definition Video Cameras

Cameras or VTRs capable of recording progressive images in the 1080 format are indicated with a P or PsF after the frame rate. PsF is an acronym for progressive segmented frame recording, developed by Sony to record progressively scanned images on HDCAM recorders which are interlaced recorders. Each progressive frame is split into two fields in order to record it on tape. Because each frame is captured at a single temporal moment, there’s no vertical movement between the fields as there is when interlaced scanning is used. Consequently there’s no loss of vertical resolution due to the interlace factor when the image is reassembled for display or postproduction.

High Definition Video Cameras

The high resolution HD signal as defined by the Advanced Television Standards Committee (ATSC) is the 1080 line format, which is 1920 by 1080 with an aspect ratio of 16:9. Images can be interlaced or progressively scanned. Most equipment designated as recording in the 1080 format actually only captures 1440 × 1080 due to sub sampling of the signal. Cameras or VTRs recording 1080 interlaced signals use the letter “i” after the frame rate to designate interlaced recording. Differences between PAL and NTSC frame rates are maintained when recording a 1080 interlaced signal. PAL countries use 1080/50i (25 fps) and NTSC countries, 1080/60i (30 fps)

more about Panasonic’s AJ-SPX800

Operators can select to record at 25 Mbps with 4:1:1 color sampling can be inserted into the camcorder. The camera can capture at 60 fields per second or 30 or 24 frames per second. Only the actual frames captured by the camera are stored on the P2 memory cards. Consequently, only one pull down arrangement the standard one is needed to output 24 frame material.

Panasonic’s AJ-SPX800

Panasonic’s AJ-SPX800 records on solid state memory called P2 (in the shape of a PC-MCIA card) instead of tape using the same prism based imager as the SDX900, although with 14 bit instead of 12 bit digital signal processing. This 16:9 by 4:3 switchable camcorders has three 16:9, progressive, two by three inch 520000 pixel IT CCDs.

Progressive Standard Definition Cameras

Panasonic’s AJ-SDX900 uses a prism based imager 16:9 and 4:3 switchable with three two by three inch 520000 progressive capture, native 16:9 IT CCDs and 12 bit digital signal processing. The camera section captures images at 60 fields per second or 30 or 24 frames per second. The SDX900’s recorder can operate at 25 Mbps in the DVCPRO-50 format. DVCPRO is Panasonic’s professional version of the DV format and uses 4:1:1 color sampling. DVCPRO-50 doubles the data rate and uses 4:2:2 color sampling.

More about ERP

The system is designed incorporating a wide array of choices to ensure maximum support and guidance for the user’s logging into the site for the recruitment purpose and can visualize the report details of the supply chain management process in order to know about the organization and its activities. The highlights of the system specify that the administrator can visualize the activities in an organization. Here we are with the supply chain management which deals with Supply of the raw materials, processing the raw materials, which leads to the production activities and as well as the Human resource module for the recruitment purpose for the different departments of the organization.

Panasonic’s AJ-SPX800

Panasonic’s AJ-SPX800 records on solid state memory called P2 (in the shape of a PC-MCIA card) instead of tape using the same prism based imager as the SDX900, although with 14 bit instead of 12 bit digital signal processing. This 16:9 by 4:3 switchable camcorders has three 16:9, progressive, two by three inch 520000 pixel IT CCDs. Operators can select to record at 25 Mbps with 4:1:1 color sampling can be inserted into the camcorder. The camera can capture at 60 fields per second or 30 or 24 frames per second. Only the actual frames captured by the camera are stored on the P2 memory cards. Consequently, only one pull down arrangement the standard one is needed to output 24 frame material.