Global online TV and film revenues will double over the next five years, according to Digital TV Research.
OTT revenues are expected to reach $159 billion in 2024, up from $68 billion in 2018.
SVoD, which overtook AVoD in 2014 as the largest OTT revenue source, is expected to reach $87 billion by 2024.
The report also forecast that OTT revenues will exceed $1 billion in 18 countries by 2024, up from 10 countries in 2018.
Digital TV Research principal analyst Simon Murray said: “Despite losing market share to SVoD, there is still plenty of AVoD growth left.
“AVOD revenues will increase by $34 billion between 2018 and 2024 to take its total to $56 billion. Several high profile AVoD-funded platforms are due to start operations soon.”