int16_tinputBufferSize,/* i : total number of samples in the input buffer. Related function: IVAS_ENC_GetInputBufferSize() */
uint16_t*outputBitStream,/* o : pointer to serial output bitstream. The array must already be allocated and be of size at least IVAS_MAX_BITS_PER_FRAME */
uint16_t*numOutBits/* o : number of bits written to output bitstream. Each bit is stored as a single uint16_t value */