Method and apparatus for processing a video signal

A method for encoding a bitstream for a video signal comprising at least one coding block to be partitioned into a plurality of prediction blocks by an encoding apparatus, the method comprising:

• encoding into the bitstream, by the encoding apparatus, first information indicating whether prediction information of a current prediction block among the plurality of prediction blocks is determined by prediction information of a merging candidate selected from merging candidates, the merging candidates comprise at least one neighboring prediction block adjacent to the current prediction block;
• and
• based on the first information indicating that prediction information of the current prediction block is determined by prediction information of the selected merging candidate, encoding, by the encoding apparatus, the current prediction block based on the prediction information of the selected merging candidate,
• wherein, based on the coding block being horizontally partitioned into two rectangular prediction blocks and the current prediction block being a bottom prediction block among the two rectangular prediction blocks, a top prediction block among the two rectangular prediction blocks is excluded from the merging candidates.

A method for transmitting a bitstream for a video signal comprising at least one coding block to be partitioned into a plurality of prediction blocks by an apparatus, the method comprising:

• encoding into the bitstream, by the apparatus, first information indicating whether prediction information of a current prediction block among the plurality of prediction blocks is determined by prediction information of a merging candidate selected from merging candidates, the merging candidates comprise at least one neighboring prediction block adjacent to the current prediction block;
• based on the first information indicating that prediction information of the current prediction block is determined by prediction information of the selected merging candidate, encoding, by the apparatus, the current prediction block based on the prediction information of the selected merging candidate;
• and
• transmitting the bitstream,
• wherein, based on the coding block being horizontally partitioned into two rectangular prediction blocks and the current prediction block being a bottom prediction block among the two rectangular prediction blocks, a top prediction block among the two rectangular prediction blocks is excluded from the merging candidates.