tree a21135bc3fba05ff36a14c5c39884795f25ff3bc
parent d4e66cc703290f44d93ce3cfd853aeb5762ad6c3
author Wan-Teh Chang <wtc@google.com> 1756941032 -0700
committer Wan-Teh Chang <wtc@google.com> 1757005510 -0700

Support the latest AVM code

Check the AVM experiment macros CONFIG_NEW_OBU_HEADER and CONFIG_NEW_CSP
to detect the new code.

CONFIG_NEW_OBU_HEADER: New OBU header, and new location of the OBU size
(before the OBU header). The spatial ID becomes the embedded layer
(mlayer) ID.

CONFIG_NEW_CSP: New 4:2:0 chroma sample positions in the range 0..5. The
special value 6 means unspecified. 4:2:2 also has chroma sample
positions in the range 0..1.