Patent ID: 8233545
Filing Date: 2012-07-31
Classification: G06F,H04N

Abstract:
1. A computer implemented method of video data encoding, the computer operable to perform a left most bit detect instruction, the left most bit detect instruction storing in a destination register a number of consecutive bits of a first digital state in high order bits of data stored in a source register, the method comprising the steps of: quantizing spatial frequency coefficients for each block of a frame; generating a mask having one bit for each spatial frequency coefficient of the block, each mask bit having a first digital state if a corresponding quantized spatial frequency coefficient is non-zero and a second digital state opposite to said first digital state if the corresponding quantized spatial frequency coefficient is zero; and run length encoding said quantized spatial frequency coefficients by storing said mask in a first data register and repeatedly until all bits having the first digital state within said first data register storing said mask are considered.