A novel algorithm and architecture of combined direct 2-D transform and quantization for H.264

This paper proposes a novel high-performance direct 2-D transform algorithm which suitably arranges the data processing sequences adopted in row and column transforms of H.264 CODEC systems to finish the data transposition. Simultaneity, this paper proposes a new direct 2-D transform and quantization architectures for H.264 video coding standard. The induced new transform and quantization architecture greatly increases the data processing rate and eliminates transform multiplication and transpose memory, and select different mode and quantization according to AC coefficient, DC coefficient, chrominance block and Luminance block. And this architecture just need to storage one quantization tables for Integer transform and Hadamard transform, but it can do two types of forward transforms and quantization just in one block.