Method and apparatus for transforming moving picture coding system

A method for transforming a first data sequence generated by a first moving picture coding system that switches an intra-frame coding mode and an inter-frame coding mode on a block unit basis to a second data sequence generated by a second moving picture coding system that switches the intra-frame coding mode and the inter-frame coding mode on the block unit basis, comprising:

• increasing the number of blocks to be coded by the inter-frame coding mode in said second moving picture coding system in the case where a generated code amount of said second data sequence exceeds a target value.

An apparatus for transforming a first data sequence, generated by a first moving picture coding system that switches an intra-frame coding and an inter-frame coding on block unit basis to a second data sequence, generated by a second moving picture coding system that switches an intra-frame coding and an inter-frame coding on the block unit basis, said apparatus comprising:

• a block increaser that increases the number of blocks to be coded by the intra-frame coding mode in said second moving picture coding system when a generated code amount of said data sequence is less than a target value.

An apparatus for transforming a first data sequence, generated by a first moving picture coding system that switches an intra-frame coding mode and an inter-frame coding mode on a block unit basis to a second data sequence, generated by a second moving picture coding system that switches an intra-frame coding mode and an inter-frame coding mode on the block unit basis, said apparatus comprising:

• a block increaser that increases the number of blocks to be coded by the inter-frame coding mode in said second moving picture coding system when a generated code amount of said second data sequence exceeds a target value.

A recording medium that stores a program, readable by a computer, for transforming a first data sequence, generated by a first moving picture coding system, that switches an intra-frame coding mode and an inter-frame coding mode on a block unit basis to a second data sequence, generated by a second moving picture coding system that switches an intra-frame coding mode and an inter-frame coding mode on the block unit basis, said program comprising:

• a procedure for increasing the number of blocks to be coded by the intra-frame coding mode in the second moving picture coding system when a generated code amount of the data sequence is less than a target value.

A recording medium that stores a program, readable by a computer, for transforming a first data sequence, generated by a first moving picture coding system that switches an intra-frame coding mode and an inter-frame coding mode on a block unit basis to a second data sequence, generated by a second moving picture coding system that switches an intra-frame coding mode and an inter-frame coding mode on the block unit basis, said program comprising:

• a procedure for increasing the number of blocks to be coded by the inter-frame coding mode in the second moving picture coding system when a generated code amount of the second data sequence exceeds a target value.