AdHoc aims to provide content partners and advertisers with video advertising that combines the power of TV promotion with the relevance of contextual search advertising.
Blinkx hopes to emulate the success of Google's AdSense, which delivers contextual advertising without video.
The video search engine company said its new platform will also offer media companies and advertisers a flexible solution for customising the timing and appearance of video ads, with options including pre, post and mid-roll placement, as well as banners, in-video mini banners and a post-roll catalogue view.
Suranga Chandratillake, founder and chief executive of Blinkx, said: "Until now, online video advertising was a kind of Frankenstein's monster -- an attempt to cobble together technology.
"The AdHoc platform is revolutionary because it was built from the ground up to address rich media, resulting in higher monetisation for media companies, more effective marketing for advertisers and a useful, non-disruptive experience for users."