what's the chroma format with scalable modes being snr- or spatial-scalable and intra dc precbeingion being 8, 9, 10
create table table_1376890_2 (chroma_format varchar, scalable_modes varchar, intra_dc_precision varchar, PRIMARY KEY (chroma_format))
select chroma_format from table_1376890_2 where scalable_modes = "snr- or spatial-scalable" and intra_dc_precision = "8, 9, 10"