Limit the candidate pool for golden reference frame
Only allow the ARF and the first layer intermediate ARF to be
used as the golden frame. This won't change the coding stats in
v2, but might affect stats in v3.
Change-Id: I2316992eddde459112710f3c349842079f6d1d3d
diff --git a/av1/qmode_rc/reference_manager.cc b/av1/qmode_rc/reference_manager.cc
index eefd188..8ea96b2 100644
--- a/av1/qmode_rc/reference_manager.cc
+++ b/av1/qmode_rc/reference_manager.cc
@@ -227,10 +227,10 @@
if (!last_queue_.empty()) {
int this_ref_idx = last_queue_.back();
GopFrame &this_gf_frame = ref_frame_table_[this_ref_idx];
- // If the last (stack top) of last_queue_ is an arf frame, then move it to
- // the backward_queue_ so it will become the golden frame of future leaf
- // frames.
- if (this_gf_frame.is_arf_frame) {
+ // If the last (stack top) of last_queue_ is an arf frame or first layer
+ // intermediate arf, then move it to the backward_queue_ so it will
+ // become the golden frame of future leaf frames.
+ if (this_gf_frame.is_golden_frame) {
last_queue_.pop_back();
backward_queue_.push_back(this_ref_idx);
}
