Abstract: A method for processing an audio/video bit-stream includes the steps of receiving an input bit-stream, detecting whether the input bit-stream has a startcode emulation prevention pattern, and removing the startcode emulation prevention pattern from the input bit-stream to generate an output bit-stream and setting a flag signal as a first designated flag value when the startcode emulation prevention pattern is detected. The method further includes the step of detecting whether the input bit-stream includes a startcode, and directly outputting the input bit-stream and setting the flag signal as a second designated flag value when the startcode is detected.

Abstract: A method for processing an audio/video bit-stream includes the steps of receiving an input bit-stream, detecting whether the input bit-stream has a startcode emulation prevention pattern, and removing the startcode emulation prevention pattern from the input bit-stream to generate an output bit-stream and setting a flag signal as a first designated flag value when the startcode emulation prevention pattern is detected. The method further includes the step of detecting whether the input bit-stream includes a startcode, and directly outputting the input bit-stream and setting the flag signal as a second designated flag value when the startcode is detected.

Abstract: A decoding method is adapted to be implemented using a Context-based Adaptive Binary Arithmetic Coding (CABAC) decoding apparatus, and includes: initializing a plurality of context variables; storing the context variables; performing arithmetic decoding of a syntax element according to the context variables so as to output a decoded syntax element and an update signal; and updating at least one of the context variables according to the update signal. At least one of the context variables is pre-initialized in the initializing step before a bit stream ready.