7. The method of claim 6 , further comprising: based on the first syntax element indicating that the default window size is not used for the plurality of contexts, coding a second syntax element that indicates the window size for the first context.
7. The method of claim 6 , further comprising: based on the first syntax element indicating that the default window size is not used for the plurality of contexts, coding a second syntax element that indicates the window size for the first context. 8. The method of claim 7 , wherein to indicate the window size for the first context, the second syntax element indicates a difference between the window size for the first context and the default window size.