tree 058a642c075a1d892f79c665dd486904ca6db25a
parent b09d9253a6c4fd41d78fd7303350dfc91b6c6216
author chiyotsai <chiyotsai@google.com> 1591051343 -0700
committer Chi Yo Tsai <chiyotsai@google.com> 1591739859 +0000

Documents main functions for intra-mode coding

This CL starts the work on documenting intra-mode coding in libaom. This
contains the following two main changes:
  - The code flows for luma/chroma coding and inter/intra frame coding
    are made slightly more similar. For example, an analog of
    rd_pick_filter_intra_sby for intraframe coding is added to
    interframe coding flow. However, the analogy is limited right
    before the luma/chroma code path is too intermingled in
    av1_handle_intra_mode.
  - Some basic documentations are added to the main intra-mode, rdopt,
    non-skip, functions. Doxygen support will be added in the next CL.

BUG=aomedia:2712

Change-Id: Icaa02735c5df7980c0d34314f41e66e6afe4fba3