H.261 Decoder Functions

Intel IPP implements functions that support the decoder and common operations specific to ITU-T Recommendation H.261.

The implemented IPP functions, along with those described in the General Functions, cover the following aspects of H.261 Decoder:

Block-based variable length code (VLC) decoding and inverse zigzag scan
Inverse quantization, inverse zigzag positioning, and IDCT
Block layer coefficient reconstruction, including bitstream parsing, VLC decoding, inverse quantization, inverse zigzag positioning, with appropriate clipping on each step
Motion compensation
Two-dimensional loop filtering.