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The video codec is a version of Motion JPEG with fixed quantization tables (taken from jpeg standard).

Use one of several available video editing programs or (online) conversion tools, such as Free Studio or SUPER, which allow users to import MP4 videos and export them in AMV format.

amv conversion) is certainly possible and should be quite straightforward. It contains a RIFF packed stream of video and audio. MaVideo Converting MPEG-4 Videos directly to Actions Media Videos (.mp4 to. The avi header contains several 'garbage' values as many of the parameters are hardcoded.

Little is known about the history of the AMV file format other than it is used by Chinese-made portable MP3 players and has supposedly been created to allow video playback capabilities on inexpensive and low end equipment without increasing the cost of those players with the license royalties and more processor power needed for other more complex format/codec pairs.ĪMV files are a variant of AVI with the strings "AVI" and "avih" in the header replaced with "AMV" and "amvh".