tree 48b06658d0df2bc3fea6c052f100c0cc9ec5325a
parent 77afa4a4ffdb8f186e571e0f1d9fa336b717d751
author Angie Chiang <angiebird@google.com> 1625806951 -0700
committer Angie Chiang <angiebird@google.com> 1626127364 +0000

Integrate BITRATE_ACCURACY with new ARF q feature

av1_get_arf_q_index_q_mode() can not be directly used
in BITRATE_ACCURACY because it's using
active_worst_quality (cq_level) as leaf frame q index, but in
BITRATE_ACCURACY, we are tuning the leaf frame q index and
therefore we will need to parameterize active_worst_quality.

We rename av1_get_arf_q_index_q_mode() as av1_tpl_get_q_index()
and decompose it into two functions, av1_tpl_get_qstep_ratio()
and av1_get_q_index_from_qstep_ratio().

av1_tpl_get_qstep_ratio() aims at computing the qstep
ratio between leaf frame q index and arf frame q index.

av1_get_q_index_from_qstep_ratio() finds arf q index based on
the qstep ratio with respect to the leaf frame q index.

We pass the qstep ratio into av1_q_mode_estimate_base_q()
so that it can be used to infer arf q index from
leaf frame q index.

Change-Id: If68a8ffee00656ec22df01c7cc003de5e9540071