These simplified codecs have very low decoding overhead.
The audio codec is a variant of IMA ADPCM, 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. The video codec is a variant of Motion JPEG, with fixed rather than variable quantisation tables. Aug 10, 2015, Posted by Andrew Smith What Is AMV Format?ĪMV, a simplified version of AVI format, is designed for low-end portable video players with weak CPU and small screen size, for example, S1 MP3 player.
