The Features Of AVI Format
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The Features of AVI Format

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AVI stands for Audio Video Interleave. Files of this format have .avi extension. Being developed by Microsoft in 1992 as a part of its Video for Windows technology. AVI combines audio and video into a single file in a standard container to allow simultaneous playback. It's simple architecture, due to which AVI runs on a number of different systems like Windows, Mac's, Linux, Unix and is supported by all most popular web-browsers.
AVI has become so wide spread that many people consider it de facto standard for storing video and audio information on PC. The video data format has the following notable features:

1. Non-hardware video playback capabilities

Although AVI format is designed for the current MPC, but it can also be continuously improve to adapt to the development of the MPC. AVI format parameters, window size and frame rate can be adjusted based on hardware capacity and processing speed of the playback environment. On low-grade MPC machine or network play, VFW window can be very small, the number of colors and the frame rate can be very low; Pentium class system, 64K colors, 320 × 240 the compressed video data can achieve 25 per second frame playback rate. In this way, VFW can apply to different hardware platforms, so that users can edit, and playback of digital video information in ordinary MPC, without the need for expensive specialized hardware.

2. Synchronization control and real-time playback

Through synchronization control parameters AVI by self-tuning to adapt reproduction environment, if the MPC processing capacity is not enough high, while the AVI file's data rate and a larger, Play The AVI file in the WINDOWS environment, the player can by dropping a these frames, the actual play data rate adjustment AVI to achieve the effect of the video, audio synchronization.

3. VFW player can efficiently play AVI files which stored on the hard disk and CD-ROM

Due to AVI data cross-storage, VFW player only occupy limited memory space when play AVI player, because the player can read video data on the hard disk or CD-ROM while it is playing, no need to load the large capacity video data into memory. AVI video data playback, simply to access the small amount of the video image within the specified time, and part of the audio data. In this way can not only improve the efficiency of the system, can also be quickly loaded and quickly start playing program, to reduce the waiting time of the user when they play AVI video data.

4. Provide open AVI digital video file structure

AVI file structure not only solves the problem of audio and video synchronization, also has the generic and open characteristics. It can work in any Windows environment, but also to extend the functionality of the environment. Users can develop their own AVI video files, which can be used at any time in the Windows environment.

5. AVI file can be edited

AVI commonly uses intra lossy compression so it can be editable by the common video editing software such as Adobe Premiere or Mac DVD ripper.

With these features, AVI has lots of advantages:
(1) Choice of codecs means you can achieve a high rate compression if you experiment.
(2) AVI can play in mainstream media players such as Windows Media Player.
(3) AVI Can be used as a starting point to create playable DVDs.