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1. (WO2018178507) AN APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING

Pub. No.:    WO/2018/178507    International Application No.:    PCT/FI2018/050162
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Wed Mar 07 00:59:59 CET 2018
IPC: H04N 21/438
H04N 21/4402
H04N 21/4728
H04N 19/597
H04N 19/30
H04N 19/51
H04N 19/17
Applicants: NOKIA TECHNOLOGIES OY
Inventors: HANNUKSELA, Miska
Title: AN APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING
Abstract:
A method comprising: encoding an input picture sequence into a first bitstream (1000), said encoding comprising:encoding a first input picture into first two coded pictures of the first bitstream, wherein one of said two coded pictures is a first shared coded picture (1000a); encoding a first set of input pictures into a first set of coded pictures of the first bitstream, following in decoding order the first two coded pictures of the first bitstream, wherein any picture subsequent to the first shared coded picture in decoding order is not predicted from any picture that precedes the first shared coded picture in decoding order and is not a shared coded picture (1000b); and encoding the input picture sequence into a second bitstream (1002), said encoding comprising:encoding the first input picture into first two coded pictures of the second bitstream, wherein one of said two coded pictures is the first shared coded picture (1002a); encoding the first set of input pictures into a second set of coded pictures of the second bitstream, following in decoding order the first two coded pictures of the second bitstream and differing from the first set of coded pictures of the first bitstream, wherein any picture subsequent to the first shared coded picture in decoding order is not predicted from any picture that precedes the first shared coded picture in decoding order and is not a shared coded picture (1002b).