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Vivo Software was a pioneer internet streaming media company which was acquired by RealNetworks in March 1998. Vivo Software designed the Vivo Video/Audio platform, including its encoding tools and end-user VivoActive Player.

The Vivo format, obsolete today, was one of the first to be designed and used for internet streaming. The Vivo platform was a well-known player when streaming media was in its infancy and was deployed mainly on erotic sites during the mid-1990s. Since then RealPlayer, QuickTime and Windows Media have evolved as the dominant platforms.^{[needs update]} The development of Vivo ceased in 1997 to be replaced by RealPlayer from RealNetworks.

VivoActive

VivoActive

Developer(s)	Vivo Software / RealNetworks
Operating system	Microsoft Windows
Type	Audio/Video Codec
License	Proprietary
Website	www.vivo.com

VivoActive is an audio/video format created by Vivo Software, acquired by RealNetworks in 1997. The Vivo format is based upon H.263 video and G.723 ADPCM audio (not the G.723.1 speech codec). It uses inter-frame coding, but does not insert any key frames, except at the beginning of the clip, which effectively disables the possibility of seeking to specific locations in the stream. One of the last released versions of VivoActive Player added a workaround for this handicap by quickly decoding all frames from the first one to the requested position.

MPlayer is able to play and convert Vivo video clips.