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Removing active_arnr_{strength, frames} from VP9_COMP.

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Change-Id: I60472b71ca75ee0522ed2611f43e1207d44b66d0
This commit is contained in:
Dmitry Kovalev 2014-08-15 10:22:00 -07:00
parent 715bab6e55
commit 31e54bbf42
2 changed files with 22 additions and 20 deletions
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2
vp9/encoder/vp9_encoder.h
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@ -298,8 +298,6 @@ typedef struct VP9_COMP {
int zbin_mode_boost;
int zbin_mode_boost_enabled;
int active_arnr_frames; // <= cpi->oxcf.arnr_max_frames
int active_arnr_strength; // <= cpi->oxcf.arnr_max_strength
int64_t last_time_stamp_seen;
int64_t last_end_time_stamp_seen;

40
vp9/encoder/vp9_temporal_filter.c
View File

@ -357,12 +357,14 @@ static void temporal_filter_iterate_c(VP9_COMP *cpi,
// Apply buffer limits and context specific adjustments to arnr filter.
static void adjust_arnr_filter(VP9_COMP *cpi,
int distance, int group_boost) {
int distance, int group_boost,
int *arnr_frames, int *arnr_strength) {
const VP9EncoderConfig *const oxcf = &cpi->oxcf;
const int frames_after_arf =
vp9_lookahead_depth(cpi->lookahead) - distance - 1;
vp9_lookahead_depth(cpi->lookahead) - distance - 1;
int frames_fwd = (cpi->oxcf.arnr_max_frames - 1) >> 1;
int frames_bwd;
int q;
int q, frames, strength;
// Define the forward and backwards filter limits for this arnr group.
if (frames_fwd > frames_after_arf)
@ -375,10 +377,10 @@ static void adjust_arnr_filter(VP9_COMP *cpi,
// For even length filter there is one more frame backward
// than forward: e.g. len=6 ==> bbbAff, len=7 ==> bbbAfff.
if (frames_bwd < distance)
frames_bwd += (cpi->oxcf.arnr_max_frames + 1) & 0x1;
frames_bwd += (oxcf->arnr_max_frames + 1) & 0x1;
// Set the baseline active filter size.
cpi->active_arnr_frames = frames_bwd + 1 + frames_fwd;
frames = frames_bwd + 1 + frames_fwd;
// Adjust the strength based on active max q.
if (cpi->common.current_video_frame > 1)
@ -388,29 +390,33 @@ static void adjust_arnr_filter(VP9_COMP *cpi,
q = ((int)vp9_convert_qindex_to_q(
cpi->rc.avg_frame_qindex[KEY_FRAME]));
if (q > 16) {
cpi->active_arnr_strength = cpi->oxcf.arnr_strength;
strength = oxcf->arnr_strength;
} else {
cpi->active_arnr_strength = cpi->oxcf.arnr_strength - ((16 - q) / 2);
if (cpi->active_arnr_strength < 0)
cpi->active_arnr_strength = 0;
strength = oxcf->arnr_strength - ((16 - q) / 2);
if (strength < 0)
strength = 0;
}
// Adjust number of frames in filter and strength based on gf boost level.
if (cpi->active_arnr_frames > (group_boost / 150)) {
cpi->active_arnr_frames = (group_boost / 150);
cpi->active_arnr_frames += !(cpi->active_arnr_frames & 1);
if (frames > group_boost / 150) {
frames = group_boost / 150;
frames += !(frames & 1);
}
if (cpi->active_arnr_strength > (group_boost / 300)) {
cpi->active_arnr_strength = (group_boost / 300);
if (strength > group_boost / 300) {
strength = group_boost / 300;
}
// Adjustments for second level arf in multi arf case.
if (cpi->oxcf.pass == 2 && cpi->multi_arf_allowed) {
const GF_GROUP *const gf_group = &cpi->twopass.gf_group;
if (gf_group->rf_level[gf_group->index] != GF_ARF_STD) {
cpi->active_arnr_strength >>= 1;
strength >>= 1;
}
}
*arnr_frames = frames;
*arnr_strength = strength;
}
void vp9_temporal_filter(VP9_COMP *cpi, int distance) {
@ -425,9 +431,7 @@ void vp9_temporal_filter(VP9_COMP *cpi, int distance) {
struct scale_factors sf;
// Apply context specific adjustments to the arnr filter parameters.
adjust_arnr_filter(cpi, distance, rc->gfu_boost);
strength = cpi->active_arnr_strength;
frames_to_blur = cpi->active_arnr_frames;
adjust_arnr_filter(cpi, distance, rc->gfu_boost, &frames_to_blur, &strength);
frames_to_blur_backward = (frames_to_blur / 2);
frames_to_blur_forward = ((frames_to_blur - 1) / 2);
start_frame = distance + frames_to_blur_forward;