Index: source/libvpx/vp9/encoder/vp9_vaq.c |
=================================================================== |
--- source/libvpx/vp9/encoder/vp9_vaq.c (revision 263011) |
+++ source/libvpx/vp9/encoder/vp9_vaq.c (working copy) |
@@ -1,148 +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 "vp9/encoder/vp9_vaq.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" |
-#include "vp9/common/vp9_systemdependent.h" |
- |
-#define ENERGY_MIN (-1) |
-#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 double q_ratio[MAX_SEGMENTS] = { 1, 1, 1, 1, 1, 1, 1, 1 }; |
-static double rdmult_ratio[MAX_SEGMENTS] = { 1, 1, 1, 1, 1, 1, 1, 1 }; |
-static int segment_id[MAX_SEGMENTS] = { 5, 3, 1, 0, 2, 4, 6, 7 }; |
- |
-#define Q_RATIO(i) q_ratio[(i) - ENERGY_MIN] |
-#define RDMULT_RATIO(i) rdmult_ratio[(i) - ENERGY_MIN] |
-#define SEGMENT_ID(i) segment_id[(i) - ENERGY_MIN] |
- |
-DECLARE_ALIGNED(16, static const uint8_t, vp9_64_zeros[64]) = {0}; |
- |
-unsigned int vp9_vaq_segment_id(int energy) { |
- ENERGY_IN_BOUNDS(energy); |
- |
- return SEGMENT_ID(energy); |
-} |
- |
-double vp9_vaq_rdmult_ratio(int energy) { |
- ENERGY_IN_BOUNDS(energy); |
- |
- vp9_clear_system_state(); |
- |
- return RDMULT_RATIO(energy); |
-} |
- |
-double vp9_vaq_inv_q_ratio(int energy) { |
- ENERGY_IN_BOUNDS(energy); |
- |
- vp9_clear_system_state(); |
- |
- return Q_RATIO(-energy); |
-} |
- |
-void vp9_vaq_init() { |
- int i; |
- double base_ratio; |
- |
- assert(ENERGY_SPAN <= MAX_SEGMENTS); |
- |
- vp9_clear_system_state(); |
- |
- base_ratio = 1.5; |
- |
- for (i = ENERGY_MIN; i <= ENERGY_MAX; i++) { |
- Q_RATIO(i) = pow(base_ratio, i/3.0); |
- } |
-} |
- |
-void vp9_vaq_frame_setup(VP9_COMP *cpi) { |
- VP9_COMMON *cm = &cpi->common; |
- struct segmentation *seg = &cm->seg; |
- const double base_q = vp9_convert_qindex_to_q(cm->base_qindex); |
- const int base_rdmult = vp9_compute_rd_mult(cpi, cm->base_qindex + |
- cm->y_dc_delta_q); |
- int i; |
- |
- if (cm->frame_type == KEY_FRAME || |
- cpi->refresh_alt_ref_frame || |
- (cpi->refresh_golden_frame && !cpi->rc.is_src_frame_alt_ref)) { |
- vp9_enable_segmentation(seg); |
- vp9_clearall_segfeatures(seg); |
- |
- seg->abs_delta = SEGMENT_DELTADATA; |
- |
- vp9_clear_system_state(); |
- |
- for (i = ENERGY_MIN; i <= ENERGY_MAX; i++) { |
- int qindex_delta, segment_rdmult; |
- |
- if (Q_RATIO(i) == 1) { |
- // No need to enable SEG_LVL_ALT_Q for this segment |
- RDMULT_RATIO(i) = 1; |
- continue; |
- } |
- |
- qindex_delta = vp9_compute_qdelta(cpi, base_q, base_q * Q_RATIO(i)); |
- vp9_set_segdata(seg, SEGMENT_ID(i), SEG_LVL_ALT_Q, qindex_delta); |
- vp9_enable_segfeature(seg, SEGMENT_ID(i), SEG_LVL_ALT_Q); |
- |
- segment_rdmult = vp9_compute_rd_mult(cpi, cm->base_qindex + qindex_delta + |
- cm->y_dc_delta_q); |
- |
- RDMULT_RATIO(i) = (double) segment_rdmult / base_rdmult; |
- } |
- } |
-} |
- |
- |
-static unsigned int block_variance(VP9_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; |
- variance(x->plane[0].src.buf, x->plane[0].src.stride, |
- vp9_64_zeros, 0, bw, bh, &sse, &avg); |
- var = sse - (((int64_t)avg * avg) / (bw * bh)); |
- return (256 * var) / (bw * bh); |
- } else { |
- var = cpi->fn_ptr[bs].vf(x->plane[0].src.buf, |
- x->plane[0].src.stride, |
- vp9_64_zeros, 0, &sse); |
- return (256 * var) >> num_pels_log2_lookup[bs]; |
- } |
-} |
- |
-int vp9_block_energy(VP9_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bs) { |
- double energy; |
- unsigned int var = block_variance(cpi, x, bs); |
- |
- vp9_clear_system_state(); |
- |
- energy = 0.9 * (log(var + 1.0) - 10.0); |
- return clamp((int)round(energy), ENERGY_MIN, ENERGY_MAX); |
-} |