Apparatus, a method and a computer program for video coding and decoding
摘要
說(shuō)明書
In some embodiments, an encoder may select to use a first type of inter-layer prediction from more than one reference layers of an enhancement layer, where the enhancement layer may have a different scalability relation to said more than one reference layers. For example, the encoder may apply sample prediction (e.g. similar to inter prediction by including an inter-layer reference picture into one or more reference picture lists) from a spatial base layer picture and from a view component of another view. Furthermore, the encoder may select to turn off a second type of inter-layer prediction from a subset of said more than one reference layers. For example, the encoder may apply motion information prediction from a spatial base layer picture but not from a view component of another view. The encoder may indicate in the bitstream which types of inter-layer prediction are available or may be applied between the enhancement layer and certain indicated one or more reference layers and/or may indicate in the bitstream which types of inter-layer prediction are not used between the enhancement layer and certain indicated one or more reference layers. The decoder may decode said indications from the bitstream and adapt its decoding operations in one or more ways described further below.
