| Filename extension | |
|---|---|
| Internet media type | video/x-amv |
| Container for | Audio, video |
| Extended from | AVI and Motion JPEG |
| Standard | proprietary |
AMV (Actions Media Video) is a proprietaryvideo file format, produced for MP4 players, as well as S1 MP3 players with video playback. There are two different versions of this format: an older one for Actions chips, and a newer one for ALi’s M5661 chip, sometimes called ALIAVI.
Format[edit]
Wineskin app mac. The container is a modified version of AVI.[1] The video format is a variant of Motion JPEG, with fixed rather than variable quantisation tables.[2] The audio format is a variant of IMAADPCM, where the first 8 bytes of each frame are origin (16 bits), index (16 bits) and number of encoded 16-bit samples (32 bits); all known AMV files run sound at 22050 samples/second.[1] Ahnlab korea.
- Playing AMV On Windows – No Codecs. Designed to open AMV files on Windows XP, Vista & 7 without the need of AMV codec packs. Music playlists (mpl and m3u) can also be created, making it easy to open albums. Minimalistic and Lightweight. MediaPlayerLite is a simple interface to make playing files easy and lightweight.
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The.AMV extension stands for Anime Music Video File. What is a zip file? The.zip extension is the most common archive format utilised across the internet for storing a collection of files and directories in a single compressed file. This compressed file can easily be shared between users (e.g.
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Low decoder overhead is paramount as the S1 MP3 players have very low-end processors (a Z80 variant). Video compression ratio is low – around 4 pixels/byte, compared with over 10 pixels/byte for MPEG-2[1] – though as the files are of low resolution (96×96 up to 208×176) and frame rate (10, 12, or 16 frame/s), file sizes are small in bytes per second. With a resolution of 128×96 pixels and a framerate of 12 frame/s, a 30-minute video will be compressed into 80 MB.
Documentation[edit]
Documentation for this format is not publicly available, but Dobrica Pavlinušić reverse engineered the format[1] to produce a Perl-based decoder[3] and Pavlinušić, Tom Van Braeckel and Vladimir Voroshilov produced a version of FFmpeg that works on AMV files.[4]
References[edit]
- ^ abcdvoroshil (2007-10-15). 'AmvDocumentation'. Google Code. Archived from the original on 23 March 2008. Retrieved 2008-04-06.
- ^forcing mjpegenc to use fixed quantisation tables (Tom Van Braeckel, FFmpeg-devel mailing list, 28 October 2007)
- ^AMV free decoder (Dobrica Pavlinušić, personal blog, 19 August 2007)
- ^amv-codec-tools (Google Code)
External links[edit]
Amv File Type
- All about AMV file format (MultimediaWiki)