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In-frame q adjustment for cyclic background refresh.

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Activated using aq_mode=3.

Change-Id: Ied628b9e7bd0e88b0c75790276bca75b19eb5c07
This commit is contained in:
Marco Paniconi 2014-03-14 14:35:47 -07:00
parent c9a0309f13
commit 6b83884ba9
9 changed files with 548 additions and 25 deletions
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5
examples/vpx_temporal_scalable_patterns.c
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@ -563,7 +563,8 @@ int main(int argc, char **argv) {
vpx_codec_control(&codec, VP8E_SET_CPUUSED, -6);
vpx_codec_control(&codec, VP8E_SET_NOISE_SENSITIVITY, 1);
if (strncmp(encoder->name, "vp9", 3) == 0) {
vpx_codec_control(&codec, VP8E_SET_CPUUSED, 3);
vpx_codec_control(&codec, VP8E_SET_CPUUSED, 5);
vpx_codec_control(&codec, VP9E_SET_AQ_MODE, 3);
vpx_codec_control(&codec, VP8E_SET_NOISE_SENSITIVITY, 0);
if (vpx_codec_control(&codec, VP9E_SET_SVC, 1)) {
die_codec(&codec, "Failed to set SVC");
@ -576,6 +577,8 @@ int main(int argc, char **argv) {
// value, like 100 or 200.
max_intra_size_pct = (int) (((double)cfg.rc_buf_optimal_sz * 0.5)
* ((double) cfg.g_timebase.den / cfg.g_timebase.num) / 10.0);
// For low-quality key frame.
max_intra_size_pct = 200;
vpx_codec_control(&codec, VP8E_SET_MAX_INTRA_BITRATE_PCT, max_intra_size_pct);
frame_avail = 1;

119
test/aq_segment_test.cc Normal file
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@ -0,0 +1,119 @@
/*
* Copyright (c) 2012 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include <climits>
#include <vector>
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "test/codec_factory.h"
#include "test/encode_test_driver.h"
#include "test/i420_video_source.h"
#include "test/util.h"
namespace {
class AqSegmentTest : public ::libvpx_test::EncoderTest,
public ::libvpx_test::CodecTestWith2Params<
libvpx_test::TestMode, int> {
protected:
AqSegmentTest() : EncoderTest(GET_PARAM(0)) {}
virtual void SetUp() {
InitializeConfig();
SetMode(GET_PARAM(1));
set_cpu_used_ = GET_PARAM(2);
aq_mode_ = 0;
}
virtual void PreEncodeFrameHook(::libvpx_test::VideoSource *video,
::libvpx_test::Encoder *encoder) {
if (video->frame() == 1) {
encoder->Control(VP8E_SET_CPUUSED, set_cpu_used_);
encoder->Control(VP9E_SET_AQ_MODE, aq_mode_);
encoder->Control(VP8E_SET_MAX_INTRA_BITRATE_PCT, 100);
}
}
virtual void FramePktHook(const vpx_codec_cx_pkt_t *pkt) {
if (pkt->data.frame.flags & VPX_FRAME_IS_KEY) {
}
}
int set_cpu_used_;
int aq_mode_;
};
// Validate that this AQ segmentation mode (AQ=1, variance_ap)
// encodes and decodes without a mismatch.
TEST_P(AqSegmentTest, TestNoMisMatchAQ1) {
cfg_.rc_min_quantizer = 8;
cfg_.rc_max_quantizer = 56;
cfg_.rc_end_usage = VPX_CBR;
cfg_.g_lag_in_frames = 0;
cfg_.rc_buf_initial_sz = 500;
cfg_.rc_buf_optimal_sz = 500;
cfg_.rc_buf_sz = 1000;
cfg_.rc_target_bitrate = 300;
aq_mode_ = 1;
::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
30, 1, 0, 100);
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
}
// Validate that this AQ segmentation mode (AQ=2, complexity_aq)
// encodes and decodes without a mismatch.
TEST_P(AqSegmentTest, TestNoMisMatchAQ2) {
cfg_.rc_min_quantizer = 8;
cfg_.rc_max_quantizer = 56;
cfg_.rc_end_usage = VPX_CBR;
cfg_.g_lag_in_frames = 0;
cfg_.rc_buf_initial_sz = 500;
cfg_.rc_buf_optimal_sz = 500;
cfg_.rc_buf_sz = 1000;
cfg_.rc_target_bitrate = 300;
aq_mode_ = 2;
::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
30, 1, 0, 100);
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
}
// Validate that this AQ segmentation mode (AQ=3, cyclic_refresh_aq)
// encodes and decodes without a mismatch.
TEST_P(AqSegmentTest, TestNoMisMatchAQ3) {
cfg_.rc_min_quantizer = 8;
cfg_.rc_max_quantizer = 56;
cfg_.rc_end_usage = VPX_CBR;
cfg_.g_lag_in_frames = 0;
cfg_.rc_buf_initial_sz = 500;
cfg_.rc_buf_optimal_sz = 500;
cfg_.rc_buf_sz = 1000;
cfg_.rc_target_bitrate = 300;
aq_mode_ = 3;
::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
30, 1, 0, 100);
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
}
using std::tr1::make_tuple;
#define VP9_FACTORY \
static_cast<const libvpx_test::CodecFactory*> (&libvpx_test::kVP9)
VP9_INSTANTIATE_TEST_CASE(AqSegmentTest,
::testing::Values(::libvpx_test::kRealTime,
::libvpx_test::kOnePassGood),
::testing::Range(3, 9));
} // namespace

1
test/test.mk
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@ -18,6 +18,7 @@ LIBVPX_TEST_SRCS-yes += video_source.h
LIBVPX_TEST_SRCS-$(CONFIG_DECODERS) += ../md5_utils.h ../md5_utils.c
LIBVPX_TEST_SRCS-$(CONFIG_DECODERS) += ivf_video_source.h
LIBVPX_TEST_SRCS-$(CONFIG_ENCODERS) += ../y4minput.h ../y4minput.c
LIBVPX_TEST_SRCS-$(CONFIG_ENCODERS) += aq_segment_test.cc
LIBVPX_TEST_SRCS-$(CONFIG_ENCODERS) += datarate_test.cc
LIBVPX_TEST_SRCS-$(CONFIG_ENCODERS) += error_resilience_test.cc
LIBVPX_TEST_SRCS-$(CONFIG_ENCODERS) += i420_video_source.h

267
vp9/encoder/vp9_craq.c Normal file
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@ -0,0 +1,267 @@
/*
* Copyright (c) 2014 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include <limits.h>
#include <math.h>
#include "vp9/encoder/vp9_craq.h"
#include "vp9/common/vp9_seg_common.h"
#include "vp9/encoder/vp9_ratectrl.h"
#include "vp9/encoder/vp9_rdopt.h"
#include "vp9/encoder/vp9_segmentation.h"
// Check if we should turn off cyclic refresh based on bitrate condition.
static int apply_cyclic_refresh_bitrate(VP9_COMP *const cpi) {
// Turn off cyclic refresh if bits available per frame is not sufficiently
// larger than bit cost of segmentation. Segment map bit cost should scale
// with number of seg blocks, so compare available bits to number of blocks.
// Average bits available per frame = av_per_frame_bandwidth
// Number of (8x8) blocks in frame = mi_rows * mi_cols;
float factor = 0.5;
int number_blocks = cpi->common.mi_rows * cpi->common.mi_cols;
// The condition below corresponds to turning off at target bitrates:
// ~24kbps for CIF, 72kbps for VGA (at 30fps).
if (cpi->rc.av_per_frame_bandwidth < factor * number_blocks)
return 0;
else
return 1;
}
// Check if this coding block, of size bsize, should be considered for refresh
// (lower-qp coding). Decision can be based on various factors, such as
// size of the coding block (i.e., below min_block size rejected), coding
// mode, and rate/distortion.
static int candidate_refresh_aq(VP9_COMP *const cpi,
MODE_INFO *const mi,
int bsize,
int use_rd) {
CYCLIC_REFRESH *const cr = &cpi->cyclic_refresh;
if (use_rd) {
// If projected rate is below the thresh_rate (well below target,
// so undershoot expected), accept it for lower-qp coding.
if (cr->projected_rate_sb < cr->thresh_rate_sb)
return 1;
// Otherwise, reject the block for lower-qp coding if any of the following:
// 1) prediction block size is below min_block_size
// 2) mode is non-zero mv and projected distortion is above thresh_dist
// 3) mode is an intra-mode (we may want to allow some of this under
// another thresh_dist)
else if ((bsize < cr->min_block_size) ||
(mi->mbmi.mv[0].as_int != 0 &&
cr->projected_dist_sb > cr->thresh_dist_sb) ||
!is_inter_block(&mi->mbmi))
return 0;
else
return 1;
} else {
// Rate/distortion not used for update.
if ((bsize < cr->min_block_size) ||
(mi->mbmi.mv[0].as_int != 0) ||
!is_inter_block(&mi->mbmi))
return 0;
else
return 1;
}
}
// Prior to coding a given prediction block, of size bsize at (mi_row, mi_col),
// check if we should reset the segment_id, and update the cyclic_refresh map
// and segmentation map.
void vp9_update_segment_aq(VP9_COMP *const cpi,
MODE_INFO *const mi,
int mi_row,
int mi_col,
int bsize,
int use_rd) {
CYCLIC_REFRESH *const cr = &cpi->cyclic_refresh;
VP9_COMMON *const cm = &cpi->common;
const int bw = num_8x8_blocks_wide_lookup[bsize];
const int bh = num_8x8_blocks_high_lookup[bsize];
const int xmis = MIN(cm->mi_cols - mi_col, bw);
const int ymis = MIN(cm->mi_rows - mi_row, bh);
const int block_index = mi_row * cm->mi_cols + mi_col;
// Default is to not update the refresh map.
int new_map_value = cr->map[block_index];
int x = 0; int y = 0;
int current_segment = mi->mbmi.segment_id;
int refresh_this_block = candidate_refresh_aq(cpi, mi, bsize, use_rd);
// Check if we should reset the segment_id for this block.
if (current_segment && !refresh_this_block)
mi->mbmi.segment_id = 0;
// Update the cyclic refresh map, to be used for setting segmentation map
// for the next frame. If the block will be refreshed this frame, mark it
// as clean. The magnitude of the -ve influences how long before we consider
// it for refresh again.
if (mi->mbmi.segment_id == 1) {
new_map_value = -cr->time_for_refresh;
} else if (refresh_this_block) {
// Else if it is accepted as candidate for refresh, and has not already
// been refreshed (marked as 1) then mark it as a candidate for cleanup
// for future time (marked as 0), otherwise don't update it.
if (cr->map[block_index] == 1)
new_map_value = 0;
} else {
// Leave it marked as block that is not candidate for refresh.
new_map_value = 1;
}
// Update entries in the cyclic refresh map with new_map_value, and
// copy mbmi->segment_id into global segmentation map.
for (y = 0; y < ymis; y++)
for (x = 0; x < xmis; x++) {
cr->map[block_index + y * cm->mi_cols + x] = new_map_value;
cpi->segmentation_map[block_index + y * cm->mi_cols + x] =
mi->mbmi.segment_id;
}
// Keep track of actual number (in units of 8x8) of blocks in segment 1 used
// for encoding this frame.
if (mi->mbmi.segment_id)
cr->num_seg_blocks += xmis * ymis;
}
// Setup cyclic background refresh: set delta q and segmentation map.
void vp9_setup_cyclic_refresh_aq(VP9_COMP *const cpi) {
VP9_COMMON *const cm = &cpi->common;
CYCLIC_REFRESH *const cr = &cpi->cyclic_refresh;
struct segmentation *const seg = &cm->seg;
unsigned char *seg_map = cpi->segmentation_map;
int apply_cyclic_refresh = apply_cyclic_refresh_bitrate(cpi);
// Don't apply refresh on key frame or enhancement layer frames.
if (!apply_cyclic_refresh ||
(cpi->common.frame_type == KEY_FRAME) ||
(cpi->svc.temporal_layer_id > 0)) {
// Set segmentation map to 0 and disable.
vpx_memset(seg_map, 0, cm->mi_rows * cm->mi_cols);
vp9_disable_segmentation(&cm->seg);
if (cpi->common.frame_type == KEY_FRAME)
cr->mb_index = 0;
return;
} else {
int qindex_delta = 0;
int mbs_in_frame = cm->mi_rows * cm->mi_cols;
int i, x, y, block_count, bl_index, bl_index2;
int sum_map, new_value, mi_row, mi_col, xmis, ymis, qindex2;
// Rate target ratio to set q delta.
float rate_ratio_qdelta = 2.0;
vp9_clear_system_state();
// Some of these parameters may be set via codec-control function later.
cr->max_mbs_perframe = 10;
cr->max_qdelta_perc = 50;
cr->min_block_size = BLOCK_16X16;
cr->time_for_refresh = 1;
// Set rate threshold to some fraction of target (and scaled by 256).
cr->thresh_rate_sb = (cpi->rc.sb64_target_rate * 256) >> 2;
// Distortion threshold, quadratic in Q, scale factor to be adjusted.
cr->thresh_dist_sb = 8 * (int)(vp9_convert_qindex_to_q(cm->base_qindex) *
vp9_convert_qindex_to_q(cm->base_qindex));
if (cpi->sf.use_nonrd_pick_mode) {
// May want to be more conservative with thresholds in non-rd mode for now
// as rate/distortion are derived from model based on prediction residual.
cr->thresh_rate_sb = (cpi->rc.sb64_target_rate * 256) >> 3;
cr->thresh_dist_sb = 4 * (int)(vp9_convert_qindex_to_q(cm->base_qindex) *
vp9_convert_qindex_to_q(cm->base_qindex));
}
cr->num_seg_blocks = 0;
// Set up segmentation.
// Clear down the segment map.
vpx_memset(seg_map, 0, cm->mi_rows * cm->mi_cols);
vp9_enable_segmentation(&cm->seg);
vp9_clearall_segfeatures(seg);
// Select delta coding method.
seg->abs_delta = SEGMENT_DELTADATA;
// Note: setting temporal_update has no effect, as the seg-map coding method
// (temporal or spatial) is determined in vp9_choose_segmap_coding_method(),
// based on the coding cost of each method. For error_resilient mode on the
// last_frame_seg_map is set to 0, so if temporal coding is used, it is
// relative to 0 previous map.
// seg->temporal_update = 0;
// Segment 0 "Q" feature is disabled so it defaults to the baseline Q.
vp9_disable_segfeature(seg, 0, SEG_LVL_ALT_Q);
// Use segment 1 for in-frame Q adjustment.
vp9_enable_segfeature(seg, 1, SEG_LVL_ALT_Q);
// Set the q delta for segment 1.
qindex_delta = vp9_compute_qdelta_by_rate(cpi,
cm->base_qindex,
rate_ratio_qdelta);
// TODO(marpan): Incorporate the actual-vs-target rate over/undershoot from
// previous encoded frame.
if ((-qindex_delta) > cr->max_qdelta_perc * cm->base_qindex / 100) {
qindex_delta = -cr->max_qdelta_perc * cm->base_qindex / 100;
}
// Compute rd-mult for segment 1.
qindex2 = clamp(cm->base_qindex + cm->y_dc_delta_q + qindex_delta, 0, MAXQ);
cr->rdmult = vp9_compute_rd_mult(cpi, qindex2);
vp9_set_segdata(seg, 1, SEG_LVL_ALT_Q, qindex_delta);
// Number of target macroblocks to get the q delta (segment 1).
block_count = cr->max_mbs_perframe * mbs_in_frame / 100;
// Set the segmentation map: cycle through the macroblocks, starting at
// cr->mb_index, and stopping when either block_count blocks have been found
// to be refreshed, or we have passed through whole frame.
// Note the setting of seg_map below is done in two steps (one over 8x8)
// and then another over SB, in order to keep the value constant over SB.
// TODO(marpan): Do this in one pass in SB order.
assert(cr->mb_index < mbs_in_frame);
i = cr->mb_index;
do {
// If the macroblock is as a candidate for clean up then mark it
// for possible boost/refresh (segment 1). The segment id may get reset to
// 0 later if the macroblock gets coded anything other than ZEROMV.
if (cr->map[i] == 0) {
seg_map[i] = 1;
block_count--;
} else if (cr->map[i] < 0) {
cr->map[i]++;
}
i++;
if (i == mbs_in_frame) {
i = 0;
}
} while (block_count && i != cr->mb_index);
cr->mb_index = i;
// Enforce constant segment map over superblock.
for (mi_row = 0; mi_row < cm->mi_rows; mi_row += MI_BLOCK_SIZE)
for (mi_col = 0; mi_col < cm->mi_cols; mi_col += MI_BLOCK_SIZE) {
bl_index = mi_row * cm->mi_cols + mi_col;
xmis = num_8x8_blocks_wide_lookup[BLOCK_64X64];
ymis = num_8x8_blocks_high_lookup[BLOCK_64X64];
xmis = MIN(cm->mi_cols - mi_col, xmis);
ymis = MIN(cm->mi_rows - mi_row, ymis);
sum_map = 0;
for (y = 0; y < ymis; y++)
for (x = 0; x < xmis; x++) {
bl_index2 = bl_index + y * cm->mi_cols + x;
sum_map += seg_map[bl_index2];
}
new_value = 0;
// If segment is partial over superblock, reset.
if (sum_map > 0 && sum_map < xmis * ymis) {
if (sum_map < xmis * ymis / 2)
new_value = 0;
else
new_value = 1;
for (y = 0; y < ymis; y++)
for (x = 0; x < xmis; x++) {
bl_index2 = bl_index + y * cm->mi_cols + x;
seg_map[bl_index2] = new_value;
}
}
}
}
}

48
vp9/encoder/vp9_craq.h Normal file
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@ -0,0 +1,48 @@
/*
* Copyright (c) 2014 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef VP9_ENCODER_VP9_CRAQ_H_
#define VP9_ENCODER_VP9_CRAQ_H_
#include "vp9/encoder/vp9_onyx_int.h"
#ifdef __cplusplus
extern "C" {
#endif
// Check if we should turn off cyclic refresh based on bitrate condition.
static int apply_cyclic_refresh_bitrate(VP9_COMP *const cpi);
// Check if this coding block, of size bsize, should be considered for refresh
// (lower-qp coding).
static int candidate_refresh_aq(VP9_COMP *const cpi,
MODE_INFO *const mi,
int bsize,
int use_rd);
// Prior to coding a given prediction block, of size bsize at (mi_row, mi_col),
// check if we should reset the segment_id, and update the cyclic_refresh map
// and segmentation map.
void vp9_update_segment_aq(VP9_COMP *const cpi,
MODE_INFO *const mi,
int mi_row,
int mi_col,
int bsize,
int use_rd);
// Setup cyclic background refresh: set delta q and segmentation map.
void vp9_setup_cyclic_refresh_aq(VP9_COMP *const cpi);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // VP9_ENCODER_VP9_CRAQ_H_

75
vp9/encoder/vp9_encodeframe.c
View File

@ -39,6 +39,7 @@
#include "vp9/encoder/vp9_segmentation.h"
#include "vp9/encoder/vp9_tokenize.h"
#include "vp9/encoder/vp9_vaq.h"
#include "vp9/encoder/vp9_craq.h"
#define GF_ZEROMV_ZBIN_BOOST 0
#define LF_ZEROMV_ZBIN_BOOST 0
@ -875,7 +876,8 @@ static void select_in_frame_q_segment(VP9_COMP *cpi,
}
static void update_state(VP9_COMP *cpi, PICK_MODE_CONTEXT *ctx,
BLOCK_SIZE bsize, int output_enabled) {
int mi_row, int mi_col, BLOCK_SIZE bsize,
int output_enabled) {
int i, x_idx, y;
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
@ -885,6 +887,7 @@ static void update_state(VP9_COMP *cpi, PICK_MODE_CONTEXT *ctx,
MODE_INFO *mi = &ctx->mic;
MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi;
MODE_INFO *mi_addr = xd->mi_8x8[0];
const struct segmentation *const seg = &cm->seg;
const int mis = cm->mode_info_stride;
const int mi_width = num_8x8_blocks_wide_lookup[bsize];
@ -895,8 +898,16 @@ static void update_state(VP9_COMP *cpi, PICK_MODE_CONTEXT *ctx,
// For in frame adaptive Q copy over the chosen segment id into the
// mode innfo context for the chosen mode / partition.
if ((cpi->oxcf.aq_mode == COMPLEXITY_AQ) && output_enabled)
if ((cpi->oxcf.aq_mode == COMPLEXITY_AQ ||
cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ) &&
output_enabled) {
// Check for reseting segment_id and update cyclic map.
if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && seg->enabled) {
vp9_update_segment_aq(cpi, xd->mi_8x8[0], mi_row, mi_col, bsize, 1);
vp9_init_plane_quantizers(cpi, x);
}
mi->mbmi.segment_id = xd->mi_8x8[0]->mbmi.segment_id;
}
*mi_addr = *mi;
@ -924,10 +935,8 @@ static void update_state(VP9_COMP *cpi, PICK_MODE_CONTEXT *ctx,
xd->mi_8x8[x_idx + y * mis] = mi_addr;
}
if ((cpi->oxcf.aq_mode == VARIANCE_AQ) ||
(cpi->oxcf.aq_mode == COMPLEXITY_AQ)) {
if (cpi->oxcf.aq_mode)
vp9_init_plane_quantizers(cpi, x);
}
// FIXME(rbultje) I'm pretty sure this should go to the end of this block
// (i.e. after the output_enabled)
@ -1095,9 +1104,14 @@ static void rd_pick_sb_modes(VP9_COMP *cpi, const TileInfo *const tile,
unsigned char complexity = cpi->complexity_map[mi_offset];
const int is_edge = (mi_row <= 1) || (mi_row >= (cm->mi_rows - 2)) ||
(mi_col <= 1) || (mi_col >= (cm->mi_cols - 2));
if (!is_edge && (complexity > 128))
x->rdmult += ((x->rdmult * (complexity - 128)) / 256);
} else if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ) {
const uint8_t *const map = cm->seg.update_map ? cpi->segmentation_map
: cm->last_frame_seg_map;
// If segment 1, use rdmult for that segment.
if (vp9_get_segment_id(cm, map, bsize, mi_row, mi_col))
x->rdmult = cpi->cyclic_refresh.rdmult;
}
// Find best coding mode & reconstruct the MB so it is available
@ -1120,7 +1134,8 @@ static void rd_pick_sb_modes(VP9_COMP *cpi, const TileInfo *const tile,
vp9_clear_system_state();
*totalrate = (int)round(*totalrate * rdmult_ratio);
}
} else if (aq_mode == COMPLEXITY_AQ) {
} else if ((cpi->oxcf.aq_mode == COMPLEXITY_AQ) ||
(cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ)) {
x->rdmult = orig_rdmult;
}
}
@ -1257,7 +1272,8 @@ static void encode_b(VP9_COMP *cpi, const TileInfo *const tile,
return;
}
set_offsets(cpi, tile, mi_row, mi_col, bsize);
update_state(cpi, get_block_context(x, bsize), bsize, output_enabled);
update_state(cpi, get_block_context(x, bsize), mi_row, mi_col, bsize,
output_enabled);
encode_superblock(cpi, tp, output_enabled, mi_row, mi_col, bsize);
if (output_enabled) {
@ -1444,15 +1460,23 @@ static int sb_has_motion(const VP9_COMMON *cm, MODE_INFO **prev_mi_8x8) {
return 0;
}
static void update_state_rt(VP9_COMP *cpi, const PICK_MODE_CONTEXT *ctx) {
static void update_state_rt(VP9_COMP *cpi, const PICK_MODE_CONTEXT *ctx,
int mi_row, int mi_col, int bsize) {
int i;
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *const mbmi = &xd->mi_8x8[0]->mbmi;
const struct segmentation *const seg = &cm->seg;
x->skip = ctx->skip;
// Check for reseting segment_id and update cyclic map.
if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && seg->enabled) {
vp9_update_segment_aq(cpi, xd->mi_8x8[0], mi_row, mi_col, bsize, 1);
vp9_init_plane_quantizers(cpi, x);
}
#if CONFIG_INTERNAL_STATS
if (frame_is_intra_only(cm)) {
static const int kf_mode_index[] = {
@ -1502,7 +1526,7 @@ static void encode_b_rt(VP9_COMP *cpi, const TileInfo *const tile,
return;
}
set_offsets(cpi, tile, mi_row, mi_col, bsize);
update_state_rt(cpi, get_block_context(x, bsize));
update_state_rt(cpi, get_block_context(x, bsize), mi_row, mi_col, bsize);
encode_superblock(cpi, tp, output_enabled, mi_row, mi_col, bsize);
update_stats(cpi);
@ -1703,7 +1727,8 @@ static void rd_use_partition(VP9_COMP *cpi,
bsize >= BLOCK_8X8 && mi_row + (mh >> 1) < cm->mi_rows) {
int rt = 0;
int64_t dt = 0;
update_state(cpi, get_block_context(x, subsize), subsize, 0);
update_state(cpi, get_block_context(x, subsize), mi_row, mi_col,
subsize, 0);
encode_superblock(cpi, tp, 0, mi_row, mi_col, subsize);
*get_sb_index(x, subsize) = 1;
rd_pick_sb_modes(cpi, tile, mi_row + (ms >> 1), mi_col, &rt, &dt,
@ -1727,7 +1752,8 @@ static void rd_use_partition(VP9_COMP *cpi,
bsize >= BLOCK_8X8 && mi_col + (ms >> 1) < cm->mi_cols) {
int rt = 0;
int64_t dt = 0;
update_state(cpi, get_block_context(x, subsize), subsize, 0);
update_state(cpi, get_block_context(x, subsize), mi_row, mi_col,
subsize, 0);
encode_superblock(cpi, tp, 0, mi_row, mi_col, subsize);
*get_sb_index(x, subsize) = 1;
rd_pick_sb_modes(cpi, tile, mi_row, mi_col + (ms >> 1), &rt, &dt,
@ -1875,6 +1901,10 @@ static void rd_use_partition(VP9_COMP *cpi,
select_in_frame_q_segment(cpi, mi_row, mi_col,
output_enabled, chosen_rate);
}
if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ) {
cpi->cyclic_refresh.projected_rate_sb = chosen_rate;
cpi->cyclic_refresh.projected_dist_sb = chosen_dist;
}
encode_sb(cpi, tile, tp, mi_row, mi_col, output_enabled, bsize);
}
@ -2217,7 +2247,8 @@ static void rd_pick_partition(VP9_COMP *cpi, const TileInfo *const tile,
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
if (sum_rd < best_rd && mi_row + ms < cm->mi_rows) {
update_state(cpi, get_block_context(x, subsize), subsize, 0);
update_state(cpi, get_block_context(x, subsize), mi_row, mi_col,
subsize, 0);
encode_superblock(cpi, tp, 0, mi_row, mi_col, subsize);
*get_sb_index(x, subsize) = 1;
@ -2269,7 +2300,8 @@ static void rd_pick_partition(VP9_COMP *cpi, const TileInfo *const tile,
get_block_context(x, subsize), best_rd);
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
if (sum_rd < best_rd && mi_col + ms < cm->mi_cols) {
update_state(cpi, get_block_context(x, subsize), subsize, 0);
update_state(cpi, get_block_context(x, subsize), mi_row, mi_col,
subsize, 0);
encode_superblock(cpi, tp, 0, mi_row, mi_col, subsize);
*get_sb_index(x, subsize) = 1;
@ -2323,6 +2355,11 @@ static void rd_pick_partition(VP9_COMP *cpi, const TileInfo *const tile,
if ((cpi->oxcf.aq_mode == COMPLEXITY_AQ) && cm->seg.update_map) {
select_in_frame_q_segment(cpi, mi_row, mi_col, output_enabled, best_rate);
}
if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ) {
cpi->cyclic_refresh.projected_rate_sb = best_rate;
cpi->cyclic_refresh.projected_dist_sb = best_dist;
}
encode_sb(cpi, tile, tp, mi_row, mi_col, output_enabled, bsize);
}
if (bsize == BLOCK_64X64) {
@ -2781,8 +2818,13 @@ static void nonrd_use_partition(VP9_COMP *cpi,
assert("Invalid partition type.");
}
if (bsize == BLOCK_64X64 && output_enabled)
if (bsize == BLOCK_64X64 && output_enabled) {
if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ) {
cpi->cyclic_refresh.projected_rate_sb = *totrate;
cpi->cyclic_refresh.projected_dist_sb = *totdist;
}
encode_sb_rt(cpi, tile, tp, mi_row, mi_col, 1, bsize);
}
}
static void encode_nonrd_sb_row(VP9_COMP *cpi, const TileInfo *const tile,
@ -3168,7 +3210,8 @@ static void encode_superblock(VP9_COMP *cpi, TOKENEXTRA **t, int output_enabled,
const int mi_height = num_8x8_blocks_high_lookup[bsize];
x->skip_recode = !x->select_txfm_size && mbmi->sb_type >= BLOCK_8X8 &&
(cpi->oxcf.aq_mode != COMPLEXITY_AQ) &&
(cpi->oxcf.aq_mode != COMPLEXITY_AQ &&
cpi->oxcf.aq_mode != CYCLIC_REFRESH_AQ) &&
!cpi->sf.use_nonrd_pick_mode;
x->skip_optimize = ctx->is_coded;
ctx->is_coded = 1;

24
vp9/encoder/vp9_onyx_if.c
View File

@ -28,6 +28,7 @@
#include "vp9/common/vp9_tile_common.h"
#include "vp9/encoder/vp9_bitstream.h"
#include "vp9/encoder/vp9_craq.h"
#include "vp9/encoder/vp9_encodeframe.h"
#include "vp9/encoder/vp9_encodemv.h"
#include "vp9/encoder/vp9_firstpass.h"
@ -173,6 +174,8 @@ static void dealloc_compressor_data(VP9_COMP *cpi) {
vpx_free(cpi->complexity_map);
cpi->complexity_map = 0;
vpx_free(cpi->cyclic_refresh.map);
cpi->cyclic_refresh.map = 0;
vpx_free(cpi->active_map);
cpi->active_map = 0;
@ -200,8 +203,7 @@ static void dealloc_compressor_data(VP9_COMP *cpi) {
}
// Computes a q delta (in "q index" terms) to get from a starting q value
// to a target value
// target q value
// to a target q value
int vp9_compute_qdelta(const VP9_COMP *cpi, double qstart, double qtarget) {
const RATE_CONTROL *const rc = &cpi->rc;
int start_index = rc->worst_quality;
@ -226,10 +228,9 @@ int vp9_compute_qdelta(const VP9_COMP *cpi, double qstart, double qtarget) {
}
// Computes a q delta (in "q index" terms) to get from a starting q value
// to a value that should equate to thegiven rate ratio.
static int compute_qdelta_by_rate(VP9_COMP *cpi, int base_q_index,
double rate_target_ratio) {
// to a value that should equate to the given rate ratio.
int vp9_compute_qdelta_by_rate(VP9_COMP *cpi, int base_q_index,
double rate_target_ratio) {
int i;
int target_index = cpi->rc.worst_quality;
@ -282,8 +283,10 @@ static void setup_in_frame_q_adj(VP9_COMP *cpi) {
// Use some of the segments for in frame Q adjustment
for (segment = 1; segment < 2; segment++) {
const int qindex_delta = compute_qdelta_by_rate(cpi, cm->base_qindex,
in_frame_q_adj_ratio[segment]);
const int qindex_delta =
vp9_compute_qdelta_by_rate(cpi,
cm->base_qindex,
in_frame_q_adj_ratio[segment]);
vp9_enable_segfeature(seg, segment, SEG_LVL_ALT_Q);
vp9_set_segdata(seg, segment, SEG_LVL_ALT_Q, qindex_delta);
}
@ -1648,6 +1651,9 @@ VP9_COMP *vp9_create_compressor(VP9_CONFIG *oxcf) {
CHECK_MEM_ERROR(cm, cpi->complexity_map,
vpx_calloc(cm->mi_rows * cm->mi_cols, 1));
// Create a map used for cyclic background refresh.
CHECK_MEM_ERROR(cm, cpi->cyclic_refresh.map,
vpx_calloc(cm->mi_rows * cm->mi_cols, 1));
// And a place holder structure is the coding context
// for use if we want to save and restore it
@ -2707,6 +2713,8 @@ static void encode_without_recode_loop(VP9_COMP *cpi,
vp9_vaq_frame_setup(cpi);
} else if (cpi->oxcf.aq_mode == COMPLEXITY_AQ) {
setup_in_frame_q_adj(cpi);
} else if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ) {
vp9_setup_cyclic_refresh_aq(cpi);
}
// transform / motion compensation build reconstruction frame
vp9_encode_frame(cpi);

32
vp9/encoder/vp9_onyx_int.h
View File

@ -435,6 +435,32 @@ typedef enum {
USAGE_CONSTANT_QUALITY = 3,
} END_USAGE;
typedef struct {
// Target percentage of blocks per frame that are cyclicly refreshed.
int max_mbs_perframe;
// Maximum q-delta as percentage of base q.
int max_qdelta_perc;
// Block size below which we don't apply cyclic refresh.
BLOCK_SIZE min_block_size;
// Macroblock starting index (unit of 8x8) for cycling through the frame.
int mb_index;
// Controls how long a block will need to wait to be refreshed again.
int time_for_refresh;
// Actual number of blocks that were applied delta-q (segment 1).
int num_seg_blocks;
// Actual encoding bits for segment 1.
int actual_seg_bits;
// RD mult. parameters for segment 1.
int rdmult;
// Cyclic refresh map.
signed char *map;
// Projected rate and distortion for the current superblock.
int64_t projected_rate_sb;
int64_t projected_dist_sb;
// Thresholds applied to projected rate/distortion of the superblock.
int64_t thresh_rate_sb;
int64_t thresh_dist_sb;
} CYCLIC_REFRESH;
typedef enum {
// Good Quality Fast Encoding. The encoder balances quality with the
// amount of time it takes to encode the output. (speed setting
@ -478,6 +504,7 @@ typedef enum {
NO_AQ = 0,
VARIANCE_AQ = 1,
COMPLEXITY_AQ = 2,
CYCLIC_REFRESH_AQ = 3,
AQ_MODE_COUNT // This should always be the last member of the enum
} AQ_MODE;
@ -725,6 +752,8 @@ typedef struct VP9_COMP {
unsigned char *active_map;
unsigned int active_map_enabled;
CYCLIC_REFRESH cyclic_refresh;
fractional_mv_step_fp *find_fractional_mv_step;
fractional_mv_step_comp_fp *find_fractional_mv_step_comp;
vp9_full_search_fn_t full_search_sad;
@ -906,6 +935,9 @@ void vp9_alloc_compressor_data(VP9_COMP *cpi);
int vp9_compute_qdelta(const VP9_COMP *cpi, double qstart, double qtarget);
int vp9_compute_qdelta_by_rate(VP9_COMP *cpi, int base_q_index,
double rate_target_ratio);
static int get_token_alloc(int mb_rows, int mb_cols) {
return mb_rows * mb_cols * (48 * 16 + 4);
}

2
vp9/vp9cx.mk
View File

@ -70,6 +70,8 @@ VP9_CX_SRCS-yes += encoder/vp9_treewriter.c
VP9_CX_SRCS-yes += encoder/vp9_variance.c
VP9_CX_SRCS-yes += encoder/vp9_vaq.c
VP9_CX_SRCS-yes += encoder/vp9_vaq.h
VP9_CX_SRCS-yes += encoder/vp9_craq.c
VP9_CX_SRCS-yes += encoder/vp9_craq.h
ifeq ($(CONFIG_VP9_POSTPROC),yes)
VP9_CX_SRCS-$(CONFIG_INTERNAL_STATS) += common/vp9_postproc.h
VP9_CX_SRCS-$(CONFIG_INTERNAL_STATS) += common/vp9_postproc.c