tree 3383e04f2f2ebc1d3105b96b0e488f7aa00179f5
parent a4d0dfa92ae6e1a0ad5422c88a8b663e4c2e5177
author David Turner <david.turner@argondesign.com> 1543932295 +0000
committer David Turner <david.turner@argondesign.com> 1543953204 +0000

Change buffer references from indices to pointers

The following were references to stored buffers in the form of array
indices:
* scale_ref_idx
* last_show_frame_buf_idx
* ref_frame_map
* next_ref_frame_map

This patch changes these to be explicit RefCntBuffer pointers so as to
make their nature clearer.  This also removes a lot of indexing arrays
and allows the possibility of using smart pointer reference counting in
future.

Also, remove cm->new_fb_idx now that all uses have been replaced with
cm->cur_frame.

This forms part of wider restructuring and refactoring in order to
achieve a clean API separation at the entry to the low-level encoder.

BUG=aomedia:2244

Change-Id: I2f0fb8a054d8fb71133a658a8f1130e986be6c18