Video encoding apparatus for encoding video frame segment that is partitioned into multiple column tiles and associated video encoding method

A video encoding apparatus comprising:

• a bitstream buffer;
• and
• a first video encoder, arranged to sequentially encode coding blocks of a first video frame segment, and output encoded data of the coding blocks of the first video frame segment to the bitstream buffer, wherein the first video frame segment is partitioned into a plurality of column tiles each having at least one tile, and adjacent coding blocks located at a same coding block row and located on opposite sides of a column tile boundary are encoded by the first video encoder sequentially.

A video encoding apparatus comprising:

• a bitstream buffer;
• and
• a first video encoder, arranged to sequentially encode coding blocks of a first video frame segment, and output encoded data of the coding blocks of the first video frame segment to the bitstream buffer, wherein the first video frame segment is partitioned into a plurality of column tiles each having at least one tile, the first video encoder starts encoding a second tile of the first video frame segment before encoding of a first tile of the first video frame segment is fully completed, and the first tile and the second tile are horizontally adjacent tiles located on opposite sides of a column tile boundary.