tree 43f4575f48e3fd26820a4afe0336138700ccfda1
parent 0ecc39c5d2ff458774ebf2837396cfc481185792
author Marco Paniconi <marpan@google.com> 1633022556 -0700
committer Marco Paniconi <marpan@google.com> 1633114219 +0000

rtc: Cleanup/fixes for aq-mode=3

Remove the last_coded_q, as this was not
currently being updated and hence not used.
This removes an allocation for 1 layer and
also for the multi-layer case.

Also skip looping over 4x4 blocks: the aq-mode=3
segment feature for RTC is only used for blocks >= 8X8,
so skipping over 4x4 block can gives a small speedup.
But there is a small bdrate loss (~0.2%), since for more
efficient coding of the seg map, the cur_frame->seg_map
needs to set at 4x4, along with the function
av1_cyclic_reset_segment_skip().

This was mentioned here:
https://aomedia-review.googlesource.com/c/aom/+/136503

Speedup is ~1.5% on vga, speed 10.

Change-Id: I15efe2909aab108678fa15f043fd1ab00f3eec8c