Video CODEC method in error resilient mode and apparatus therefor

A computer readable medium having embodied thereon a computer program for executing a video coding-decoding (CODEC) method of coding video data to generate a video data packet and of decoding the packet,

• wherein the video CODEC method comprises the steps of:
• (a) partitioning a header data part (HDP) bit region, a motion vector data part (MVDP) bit region and a discrete cosine transform data part (DDP) bit region from each macro block of the video data in an error resilient mode;
• (b) variable-length-coding the partitioned bit regions;
• (c) reversible-variable-length-coding the bit regions selected from the variable-length coded bit regions according to a predetermined priority for recovery;
• and
• (d) inserting markers into the variable-length coded or reversible-variable-length-coded bit regions.

A video coding-decoding (CODEC) apparatus for coding video data to generate a video data packet and for decoding the packet, comprising:

• a partitioning unit for partitioning a header data part (HDP) bit region, a motion vector data part (MVDP) bit region and a discrete cosine transform data part (DDP) bit region from each macro block of the video data in an error resilient mode;
• a variable length coding unit for variable-length-coding the partitioned bit regions;
• a reversible variable length coding unit for reversible-variable-length-coding the bit regions selected from the variable-length coded bit regions according to a predetermined priority for recovery;
• and
• a marker inserting unit for inserting markers into the variable-length coded or reversible-variable-length-coded bit regions.