| 摘要 |
A METHOD OF ENCODING AND DECODING A SCALABLE VIDEO DATA STREAM COMPRISING A BASE LAYER AND AT LEAST ONE ENHANCEMENT LAYER. A SCALABLE DATA STREAM IS ENCODED, WHEREIN THE DATA STREAM INCLUDES AT LEAST ONE NON-REQUIRED PICTURE IN A TEMPORAL LOCATION OF A LAYER WHEREIN DECODING OF PICTURES IN AN UPPER LAYER AT AND SUCCEEDING THE SAID TEMPORAL LOCATION IN DECODING ORDER DOES NOT REQUIRE SAID NON-REQUIRED PICTURE, AND WHEREIN INFORMATION OF THE AT LEAST ONE NON-REQUIRED PICTURE IS SIGNALLED IN THE SCALABLE VIDEO DATA STREAM. IN THE DECODING PHASE, THE SIGNALLED INFORMATION IS DECODED AND PICTURES IN A LAYER ABOVE THE NON-REQUIRED PICTURE AT AND SUCCEEDING THE SAID TEMPORAL LOCATION IN DECODING ORDER ARE DECODED WITHOUT DECODING SAID NON-REQUIRED PICTURE. |
