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vp9_pick_inter_mode(): minor optimizations

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1. remove duplicate initialization to mbmi->interp_filter.
2. move mv clamping into ref_frame loop instead of mode checking loop.
3. move the check if last frame is same as golden frame earlier to
avoid initialization of Golden reference related variables.

Change-Id: Idf2d05e19e94a24f69cc289687869fc71d2ff289
This commit is contained in:
Yaowu Xu 2015-03-16 09:42:33 -07:00
parent 1f9b2b77ad
commit 51d529a578
1 changed files with 19 additions and 24 deletions
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43
vp9/encoder/vp9_pickmode.c
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@ -636,6 +636,7 @@ void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x,
struct macroblockd_plane *const pd = &xd->plane[0];
PREDICTION_MODE best_mode = ZEROMV;
MV_REFERENCE_FRAME ref_frame, best_ref_frame = LAST_FRAME;
MV_REFERENCE_FRAME usable_ref_frame;
TX_SIZE best_tx_size = TX_SIZES;
INTERP_FILTER best_pred_filter = EIGHTTAP;
int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES];
@ -718,14 +719,17 @@ void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x,
mbmi->ref_frame[1] = NONE;
mbmi->tx_size = MIN(max_txsize_lookup[bsize],
tx_mode_to_biggest_tx_size[cm->tx_mode]);
mbmi->interp_filter = cm->interp_filter == SWITCHABLE ?
EIGHTTAP : cm->interp_filter;
#if CONFIG_VP9_TEMPORAL_DENOISING
vp9_denoiser_reset_frame_stats(ctx);
#endif
for (ref_frame = LAST_FRAME; ref_frame <= GOLDEN_FRAME; ++ref_frame) {
if (cpi->rc.frames_since_golden == 0) {
ref_frame_skip_mask |= (1 << GOLDEN_FRAME);
usable_ref_frame = LAST_FRAME;
} else {
usable_ref_frame = GOLDEN_FRAME;
}
for (ref_frame = LAST_FRAME; ref_frame <= usable_ref_frame; ++ref_frame) {
const YV12_BUFFER_CONFIG *yv12 = get_ref_frame_buffer(cpi, ref_frame);
x->pred_mv_sad[ref_frame] = INT_MAX;
@ -751,6 +755,8 @@ void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x,
vp9_find_best_ref_mvs(xd, cm->allow_high_precision_mv, candidates,
&frame_mv[NEARESTMV][ref_frame],
&frame_mv[NEARMV][ref_frame]);
clamp_mv2(&frame_mv[NEARESTMV][ref_frame].as_mv, xd);
clamp_mv2(&frame_mv[NEARMV][ref_frame].as_mv, xd);
if (!vp9_is_scaled(sf) && bsize >= BLOCK_8X8)
vp9_mv_pred(cpi, x, yv12_mb[ref_frame][0].buf, yv12->y_stride,
@ -760,28 +766,25 @@ void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x,
}
}
if (cpi->rc.frames_since_golden == 0)
ref_frame_skip_mask |= (1 << GOLDEN_FRAME);
for (idx = 0; idx < RT_INTER_MODES; ++idx) {
int rate_mv = 0;
int mode_rd_thresh;
int mode_index;
int i;
PREDICTION_MODE this_mode = ref_mode_set[idx].pred_mode;
ref_frame = ref_mode_set[idx].ref_frame;
mode_index = mode_idx[ref_frame][INTER_OFFSET(this_mode)];
i = (ref_frame == LAST_FRAME) ? GOLDEN_FRAME : LAST_FRAME;
if (!(cpi->ref_frame_flags & flag_list[ref_frame]))
if (!(cpi->sf.inter_mode_mask[bsize] & (1 << this_mode)))
continue;
ref_frame = ref_mode_set[idx].ref_frame;
if (!(cpi->ref_frame_flags & flag_list[ref_frame]))
continue;
if (const_motion[ref_frame] && this_mode == NEARMV)
continue;
i = (ref_frame == LAST_FRAME) ? GOLDEN_FRAME : LAST_FRAME;
if (cpi->ref_frame_flags & flag_list[i])
if (x->pred_mv_sad[ref_frame] > (x->pred_mv_sad[i] << 1))
ref_frame_skip_mask |= (1 << ref_frame);
if (ref_frame_skip_mask & (1 << ref_frame))
continue;
@ -789,18 +792,10 @@ void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x,
for (i = 0; i < MAX_MB_PLANE; i++)
xd->plane[i].pre[0] = yv12_mb[ref_frame][i];
clamp_mv2(&frame_mv[NEARESTMV][ref_frame].as_mv, xd);
clamp_mv2(&frame_mv[NEARMV][ref_frame].as_mv, xd);
mbmi->ref_frame[0] = ref_frame;
set_ref_ptrs(cm, xd, ref_frame, NONE);
if (const_motion[ref_frame] && this_mode == NEARMV)
continue;
if (!(cpi->sf.inter_mode_mask[bsize] & (1 << this_mode)))
continue;
mode_index = mode_idx[ref_frame][INTER_OFFSET(this_mode)];
mode_rd_thresh = best_mode_skip_txfm ?
rd_threshes[mode_index] << 1 : rd_threshes[mode_index];
if (rd_less_than_thresh(best_rdc.rdcost, mode_rd_thresh,