ENERGY LOSSLESS CODING METHOD AND DEVICE, SIGNAL CODING METHOD AND DEVICE, ENERGY LOSSLESS DECODING METHOD AND DEVICE, AND SIGNAL DECODING METHOD AND DEVICE

摘要

The lossless coding method includes selecting one of a first coding method and a second coding method, based on a range in which a quantization index of energy is represented, and coding the quantization index by using the selected coding method. The lossless decoding method includes determining a coding method of a differential quantization index of energy included in a bitstream and decoding the differential quantization index by using one of a first decoding method and a second decoding method based on a range in which a quantization index of energy is represented, in response to the determined coding method.