1. AVIAVIAVIAVI ---- AudioAudioAudioAudio VideoVideoVideoVideo InterleaveInterleaveInterleaveInterleave VideoVideoVideoVideo FormatFormatFormatFormat
WhatWhatWhatWhat isisisis AVI?AVI?AVI?AVI?
Audio Video Interleave, initials as AVI, is a multimedia container format introduced
by Microsoft. The AVI contains both audio and video data in a file container that
allows synchronous audio-with-video playback. Just like the DVD video format, AVI
files support multiple streaming audio and video, however, these features are
seldom used.
UncompressedUncompressedUncompressedUncompressed AVI:AVI:AVI:AVI: AVI files can be created with no Compression, resulting in
extremely large file sizes, but with no loss of quality from the input video to the
saved file. This also requires no codec to be installed, either for saving or playback.
This is generally not recommended.
PlayPlayPlayPlay AVIAVIAVIAVI VideVideVideVideoooo FilesFilesFilesFiles
AVI combines audio and video into a single file in a standard container to allow
simultaneous playback. The AVI file type is primarily associated with 'Audio Video
Interleave File'. Recent files might be compressed with one or another codecs (like
DivX and XviD). It can also be seen with VLC Player, MPlayer, The KMPlayer.
2. Here, I`d like to share SWF to AVI for Mac tool to you, which can help you convert
swf video files to avi for playback on more video devices and applications. Of
course, the AVI to SWF Converter can help you maker flash from AVI video.
AVI'sAVI'sAVI'sAVI's AdvantageAdvantageAdvantageAdvantagessss::::
1: AVI Can be used as a starting point to create playable DVDs.
2: AVI can play in mainstream media players such as Windows Media Player.
3: Choice of codecs means you can achieve a high rate compression if you
experiment.
4: 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.
DisadvantageDisadvantageDisadvantageDisadvantage ofofofof AVI:AVI:AVI:AVI:
1: Cannot contain some specific types of VBR data reliably.
2: AVI is not intended to contain variable frame rate material.
3:AVI does not provide a standardized way to encode aspect ratio information, with
the result that players cannot select the right one automatically .
4:There are several competing approaches to including time-code in AVI files, which
affects usability of the format in film and television postproduction.
5:AVI was not intended to contain video using any compression technique which
requires access to future video frame data beyond the current frame.
3. 6: Overhead for AVI files at the resolutions and frame rates normally used to encode
feature films is about 5 MB per hour of video, the significance of which varies with
the application.
DDDDifferenceifferenceifferenceifference betweenbetweenbetweenbetween AAAAVIVIVIVI andandandand DVDVDVDV AVIAVIAVIAVI
Both formats save the file as an AVI file. The difference is in the Codecs. When you
choose Microsoft AVI you can choose between different codecs. When choosing
Microsoft DV AVI there is no choice for a codec - as it is the Microsoft DV codec, i.e.
a DV25 codec. Maybe the reason is that choosing any other codec but the DV
codec makes Premiere re-encoding the whole project - while when choosing the
DV codec is basically mean saving the project (as DV25 is the "native" codec for
Premiere).
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