is greater than 0, scaled_ref_layer_left_offset is inferred to be equal to 0. Otherwise (quality_id is equal to 0), scaled_ref_layer_left_offset is inferred to be equal to seq_scaled_ref_layer_left_offset. The value of scaled_ref_layer_left_offset shall be in the range of -215 to 215 - 1, inclusive. scaled_ref_layer_top_offset specifies the vertical offset between the upper-left luma sample of a resampled layer picture used for inter-layer prediction and the upper-left luma sample of the current picture or current layer picture. The vertical offset is specified in units of two luma samples when frame_mbs_only_flag is equal to 1, and it is specified in units of four luma samples when frame_mbs_only_flag is equal to 0. When scaled_ref_layer_top_offset is not present, it shall be inferred as follows: If quality_id is greater than 0, scaled_ref_layer_top_offset is inferred to be equal to 0. Otherwise (quality_id is equal to 0), scaled_ref_layer_top_offset is inferred to be equal to seq_scaled_ref_layer_top_offset. The value of scaled_ref_layer_top_offset shall be in the range of -215 to 215 - 1, inclusive. scaled_ref_layer_right_offsetspecifies the horizontal offset between the bottom-right luma sample of a resampled layer picture used for inter-layer prediction and the bottom-right luma sample of the current picture or current layer picture in units of two luma samples. When scaled_ref_layer_right_offset is not present, it shall be inferred as follows: If quality_id is greater than 0, scaled_ref_layer_right_offset is inferred to be equal to 0. Otherwise (quality_id is equal to 0), scaled_ref_layer_right_offset is inferred to be equal to seq_scaled_ref_layer_right_offse The value ofscaled_ref_layer_right_offset shall be in the range of -215 to 215 - 1, inclusive. caled_ref_layer_bottom_offsetspecifies the vertical offset between the bottom-right luma sample of a resampled layer picture used for inter-layer prediction and the bottom-right luma sample of the current picture or current layer picture. The vertical offset