summaryrefslogtreecommitdiff
path: root/vp10/encoder/aq_variance.c
diff options
context:
space:
mode:
Diffstat (limited to 'vp10/encoder/aq_variance.c')
-rw-r--r--vp10/encoder/aq_variance.c206
1 files changed, 0 insertions, 206 deletions
diff --git a/vp10/encoder/aq_variance.c b/vp10/encoder/aq_variance.c
deleted file mode 100644
index e8e88c3b6..000000000
--- a/vp10/encoder/aq_variance.c
+++ /dev/null
@@ -1,206 +0,0 @@
-/*
- * Copyright (c) 2013 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 <math.h>
-
-#include "vpx_ports/mem.h"
-
-#include "vp10/encoder/aq_variance.h"
-
-#include "vp10/common/seg_common.h"
-#include "vp10/encoder/ratectrl.h"
-#include "vp10/encoder/rd.h"
-#include "vp10/encoder/segmentation.h"
-#include "vpx_ports/system_state.h"
-
-#define ENERGY_MIN (-4)
-#define ENERGY_MAX (1)
-#define ENERGY_SPAN (ENERGY_MAX - ENERGY_MIN + 1)
-#define ENERGY_IN_BOUNDS(energy)\
- assert((energy) >= ENERGY_MIN && (energy) <= ENERGY_MAX)
-
-static const double rate_ratio[MAX_SEGMENTS] =
- {2.5, 2.0, 1.5, 1.0, 0.75, 1.0, 1.0, 1.0};
-static const int segment_id[ENERGY_SPAN] = {0, 1, 1, 2, 3, 4};
-
-#define SEGMENT_ID(i) segment_id[(i) - ENERGY_MIN]
-
-DECLARE_ALIGNED(16, static const uint8_t, vp10_64_zeros[64]) = {0};
-#if CONFIG_VP9_HIGHBITDEPTH
-DECLARE_ALIGNED(16, static const uint16_t, vp10_highbd_64_zeros[64]) = {0};
-#endif
-
-unsigned int vp10_vaq_segment_id(int energy) {
- ENERGY_IN_BOUNDS(energy);
- return SEGMENT_ID(energy);
-}
-
-void vp10_vaq_frame_setup(VP10_COMP *cpi) {
- VP10_COMMON *cm = &cpi->common;
- struct segmentation *seg = &cm->seg;
- int i;
-
- if (cm->frame_type == KEY_FRAME ||
- cpi->refresh_alt_ref_frame ||
- (cpi->refresh_golden_frame && !cpi->rc.is_src_frame_alt_ref)) {
- vp10_enable_segmentation(seg);
- vp10_clearall_segfeatures(seg);
-
- seg->abs_delta = SEGMENT_DELTADATA;
-
- vpx_clear_system_state();
-
- for (i = 0; i < MAX_SEGMENTS; ++i) {
- int qindex_delta =
- vp10_compute_qdelta_by_rate(&cpi->rc, cm->frame_type, cm->base_qindex,
- rate_ratio[i], cm->bit_depth);
-
- // We don't allow qindex 0 in a segment if the base value is not 0.
- // Q index 0 (lossless) implies 4x4 encoding only and in AQ mode a segment
- // Q delta is sometimes applied without going back around the rd loop.
- // This could lead to an illegal combination of partition size and q.
- if ((cm->base_qindex != 0) && ((cm->base_qindex + qindex_delta) == 0)) {
- qindex_delta = -cm->base_qindex + 1;
- }
-
- // No need to enable SEG_LVL_ALT_Q for this segment.
- if (rate_ratio[i] == 1.0) {
- continue;
- }
-
- vp10_set_segdata(seg, i, SEG_LVL_ALT_Q, qindex_delta);
- vp10_enable_segfeature(seg, i, SEG_LVL_ALT_Q);
- }
- }
-}
-
-/* TODO(agrange, paulwilkins): The block_variance calls the unoptimized versions
- * of variance() and highbd_8_variance(). It should not.
- */
-static void aq_variance(const uint8_t *a, int a_stride,
- const uint8_t *b, int b_stride,
- int w, int h, unsigned int *sse, int *sum) {
- int i, j;
-
- *sum = 0;
- *sse = 0;
-
- for (i = 0; i < h; i++) {
- for (j = 0; j < w; j++) {
- const int diff = a[j] - b[j];
- *sum += diff;
- *sse += diff * diff;
- }
-
- a += a_stride;
- b += b_stride;
- }
-}
-
-#if CONFIG_VP9_HIGHBITDEPTH
-static void aq_highbd_variance64(const uint8_t *a8, int a_stride,
- const uint8_t *b8, int b_stride,
- int w, int h, uint64_t *sse, uint64_t *sum) {
- int i, j;
-
- uint16_t *a = CONVERT_TO_SHORTPTR(a8);
- uint16_t *b = CONVERT_TO_SHORTPTR(b8);
- *sum = 0;
- *sse = 0;
-
- for (i = 0; i < h; i++) {
- for (j = 0; j < w; j++) {
- const int diff = a[j] - b[j];
- *sum += diff;
- *sse += diff * diff;
- }
- a += a_stride;
- b += b_stride;
- }
-}
-
-static void aq_highbd_8_variance(const uint8_t *a8, int a_stride,
- const uint8_t *b8, int b_stride,
- int w, int h, unsigned int *sse, int *sum) {
- uint64_t sse_long = 0;
- uint64_t sum_long = 0;
- aq_highbd_variance64(a8, a_stride, b8, b_stride, w, h, &sse_long, &sum_long);
- *sse = (unsigned int)sse_long;
- *sum = (int)sum_long;
-}
-#endif // CONFIG_VP9_HIGHBITDEPTH
-
-static unsigned int block_variance(VP10_COMP *cpi, MACROBLOCK *x,
- BLOCK_SIZE bs) {
- MACROBLOCKD *xd = &x->e_mbd;
- unsigned int var, sse;
- int right_overflow = (xd->mb_to_right_edge < 0) ?
- ((-xd->mb_to_right_edge) >> 3) : 0;
- int bottom_overflow = (xd->mb_to_bottom_edge < 0) ?
- ((-xd->mb_to_bottom_edge) >> 3) : 0;
-
- if (right_overflow || bottom_overflow) {
- const int bw = 8 * num_8x8_blocks_wide_lookup[bs] - right_overflow;
- const int bh = 8 * num_8x8_blocks_high_lookup[bs] - bottom_overflow;
- int avg;
-#if CONFIG_VP9_HIGHBITDEPTH
- if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
- aq_highbd_8_variance(x->plane[0].src.buf, x->plane[0].src.stride,
- CONVERT_TO_BYTEPTR(vp10_highbd_64_zeros), 0, bw, bh,
- &sse, &avg);
- sse >>= 2 * (xd->bd - 8);
- avg >>= (xd->bd - 8);
- } else {
- aq_variance(x->plane[0].src.buf, x->plane[0].src.stride,
- vp10_64_zeros, 0, bw, bh, &sse, &avg);
- }
-#else
- aq_variance(x->plane[0].src.buf, x->plane[0].src.stride,
- vp10_64_zeros, 0, bw, bh, &sse, &avg);
-#endif // CONFIG_VP9_HIGHBITDEPTH
- var = sse - (((int64_t)avg * avg) / (bw * bh));
- return (256 * var) / (bw * bh);
- } else {
-#if CONFIG_VP9_HIGHBITDEPTH
- if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
- var = cpi->fn_ptr[bs].vf(x->plane[0].src.buf,
- x->plane[0].src.stride,
- CONVERT_TO_BYTEPTR(vp10_highbd_64_zeros),
- 0, &sse);
- } else {
- var = cpi->fn_ptr[bs].vf(x->plane[0].src.buf,
- x->plane[0].src.stride,
- vp10_64_zeros, 0, &sse);
- }
-#else
- var = cpi->fn_ptr[bs].vf(x->plane[0].src.buf,
- x->plane[0].src.stride,
- vp10_64_zeros, 0, &sse);
-#endif // CONFIG_VP9_HIGHBITDEPTH
- return (256 * var) >> num_pels_log2_lookup[bs];
- }
-}
-
-double vp10_log_block_var(VP10_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bs) {
- unsigned int var = block_variance(cpi, x, bs);
- vpx_clear_system_state();
- return log(var + 1.0);
-}
-
-#define DEFAULT_E_MIDPOINT 10.0
-int vp10_block_energy(VP10_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bs) {
- double energy;
- double energy_midpoint;
- vpx_clear_system_state();
- energy_midpoint =
- (cpi->oxcf.pass == 2) ? cpi->twopass.mb_av_energy : DEFAULT_E_MIDPOINT;
- energy = vp10_log_block_var(cpi, x, bs) - energy_midpoint;
- return clamp((int)round(energy), ENERGY_MIN, ENERGY_MAX);
-}
View Lorry Controller Status