Patent ID: 8045615

Claim:
A video coding device comprising: a first codec that codes first video sequences according to a first video coding standard using prediction-based coding techniques on first video blocks associated with the first video sequence; a deblocking filter used by the first codec as an in-loop filter to smooth transitions between adjacent video blocks in the first video sequence; and a second codec that codes second video sequences according to a second video coding standard using prediction-based coding techniques on second video blocks associated with the second video sequence, wherein the deblocking filter used by the first codec is used by the second codec as a post filter to smooth transitions between adjacent video blocks associated with the second video sequence, wherein the second codec receives a quantization parameter, generates an adjusted quantization parameter based on the received quantization parameter, determines a boundary strength, determines a filtering decision, and applies the in-loop deblocking filter as the post deblocking filter subject to the filtering decision based on the adjusted quantization parameter and the boundary strength, and wherein: the received quantization parameter comprises a parameter defined by the second video coding standard; and the adjusted quantization parameter comprises a parameter defined by the first video coding standard, wherein generation of the adjusted quantization parameter by the second codec comprises mapping the parameter defined by the second video coding standard to the parameter defined by the first video coding standard.