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This is necessary to allow all kinds of video input and output. 320 pixels by 240 pixels and blurred by a small amount. The scripting language is a dataflow language: a programming paradigm that describes a directed graph of the data flowing between operations. A typical script loads a video file as input, performs operations on it using filters, and then “returns” that video in the same way functions return values. The returned video is the output of the script, which is seen as the video by the program running the script. The language also has several other more standard data types: int, float, bool and string.
Programmers may be unaware that they are constantly passing video streams into functions, since convention suggests that the video is not explicitly passed. If no video is passed into a function, it simply takes the last video used. This example is a “Hello World” program – it simply creates a video containing the words “Hello, world! The parentheses at the end of the word are optional, since no arguments are being passed, but are given in this case to indicate it is a function and not a variable. The Subtitle function draws the words “Hello, world! If the above text is entered into a . Windows Media Player or any of the other programs in the list below, and a video containing the text will be displayed.