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Added 3 more reference frames for inter prediction.

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Under the experiment of EXT_REFS: LAST2_FRAME, LAST3_FRAME, and
LAST4_FRAME.

Coding efficiency: derflr +1.601%; hevchr +1.895%
Speed: Encoder slowed down by ~75%

Change-Id: Ifeee5f049c2c1f7cb29bc897622ef88897082ecf
This commit is contained in:
Zoe Liu
2015-11-12 02:12:17 -08:00
parent 0c8110efe1
commit 3ec1601e37
26 changed files with 1966 additions and 103 deletions
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23
vp10/encoder/encoder.h
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@@ -304,15 +304,30 @@ typedef struct VP10_COMP {
int scaled_ref_idx[MAX_REF_FRAMES];
int lst_fb_idx;
#if CONFIG_EXT_REFS
int lst2_fb_idx;
int lst3_fb_idx;
int lst4_fb_idx;
#endif // CONFIG_EXT_REFS
int gld_fb_idx;
int alt_fb_idx;
int refresh_last_frame;
#if CONFIG_EXT_REFS
int refresh_last2_frame;
int refresh_last3_frame;
int refresh_last4_frame;
#endif // CONFIG_EXT_REFS
int refresh_golden_frame;
int refresh_alt_ref_frame;
int ext_refresh_frame_flags_pending;
int ext_refresh_last_frame;
#if CONFIG_EXT_REFS
int ext_refresh_last2_frame;
int ext_refresh_last3_frame;
int ext_refresh_last4_frame;
#endif // CONFIG_EXT_REFS
int ext_refresh_golden_frame;
int ext_refresh_alt_ref_frame;
@@ -554,6 +569,14 @@ static INLINE int get_ref_frame_map_idx(const VP10_COMP *cpi,
MV_REFERENCE_FRAME ref_frame) {
if (ref_frame == LAST_FRAME) {
return cpi->lst_fb_idx;
#if CONFIG_EXT_REFS
} else if (ref_frame == LAST2_FRAME) {
return cpi->lst2_fb_idx;
} else if (ref_frame == LAST3_FRAME) {
return cpi->lst3_fb_idx;
} else if (ref_frame == LAST4_FRAME) {
return cpi->lst4_fb_idx;
#endif // CONFIG_EXT_REFS
} else if (ref_frame == GOLDEN_FRAME) {
return cpi->gld_fb_idx;
} else {