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-rw-r--r--vp10/encoder/picklpf.c193
1 files changed, 0 insertions, 193 deletions
diff --git a/vp10/encoder/picklpf.c b/vp10/encoder/picklpf.c
deleted file mode 100644
index 045e03d1d..000000000
--- a/vp10/encoder/picklpf.c
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
- * Copyright (c) 2010 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 <assert.h>
-#include <limits.h>
-
-#include "./vpx_scale_rtcd.h"
-
-#include "vpx_dsp/vpx_dsp_common.h"
-#include "vpx_mem/vpx_mem.h"
-#include "vpx_ports/mem.h"
-
-#include "vp10/common/loopfilter.h"
-#include "vp10/common/onyxc_int.h"
-#include "vp10/common/quant_common.h"
-
-#include "vp10/encoder/encoder.h"
-#include "vp10/encoder/picklpf.h"
-#include "vp10/encoder/quantize.h"
-
-static int get_max_filter_level(const VP10_COMP *cpi) {
- if (cpi->oxcf.pass == 2) {
- return cpi->twopass.section_intra_rating > 8 ? MAX_LOOP_FILTER * 3 / 4
- : MAX_LOOP_FILTER;
- } else {
- return MAX_LOOP_FILTER;
- }
-}
-
-
-static int64_t try_filter_frame(const YV12_BUFFER_CONFIG *sd,
- VP10_COMP *const cpi,
- int filt_level, int partial_frame) {
- VP10_COMMON *const cm = &cpi->common;
- int64_t filt_err;
-
- if (cpi->num_workers > 1)
- vp10_loop_filter_frame_mt(cm->frame_to_show, cm, cpi->td.mb.e_mbd.plane,
- filt_level, 1, partial_frame,
- cpi->workers, cpi->num_workers, &cpi->lf_row_sync);
- else
- vp10_loop_filter_frame(cm->frame_to_show, cm, &cpi->td.mb.e_mbd, filt_level,
- 1, partial_frame);
-
-#if CONFIG_VP9_HIGHBITDEPTH
- if (cm->use_highbitdepth) {
- filt_err = vp10_highbd_get_y_sse(sd, cm->frame_to_show);
- } else {
- filt_err = vp10_get_y_sse(sd, cm->frame_to_show);
- }
-#else
- filt_err = vp10_get_y_sse(sd, cm->frame_to_show);
-#endif // CONFIG_VP9_HIGHBITDEPTH
-
- // Re-instate the unfiltered frame
- vpx_yv12_copy_y(&cpi->last_frame_uf, cm->frame_to_show);
-
- return filt_err;
-}
-
-static int search_filter_level(const YV12_BUFFER_CONFIG *sd, VP10_COMP *cpi,
- int partial_frame) {
- const VP10_COMMON *const cm = &cpi->common;
- const struct loopfilter *const lf = &cm->lf;
- const int min_filter_level = 0;
- const int max_filter_level = get_max_filter_level(cpi);
- int filt_direction = 0;
- int64_t best_err;
- int filt_best;
-
- // Start the search at the previous frame filter level unless it is now out of
- // range.
- int filt_mid = clamp(lf->filter_level, min_filter_level, max_filter_level);
- int filter_step = filt_mid < 16 ? 4 : filt_mid / 4;
- // Sum squared error at each filter level
- int64_t ss_err[MAX_LOOP_FILTER + 1];
-
- // Set each entry to -1
- memset(ss_err, 0xFF, sizeof(ss_err));
-
- // Make a copy of the unfiltered / processed recon buffer
- vpx_yv12_copy_y(cm->frame_to_show, &cpi->last_frame_uf);
-
- best_err = try_filter_frame(sd, cpi, filt_mid, partial_frame);
- filt_best = filt_mid;
- ss_err[filt_mid] = best_err;
-
- while (filter_step > 0) {
- const int filt_high = VPXMIN(filt_mid + filter_step, max_filter_level);
- const int filt_low = VPXMAX(filt_mid - filter_step, min_filter_level);
-
- // Bias against raising loop filter in favor of lowering it.
- int64_t bias = (best_err >> (15 - (filt_mid / 8))) * filter_step;
-
- if ((cpi->oxcf.pass == 2) && (cpi->twopass.section_intra_rating < 20))
- bias = (bias * cpi->twopass.section_intra_rating) / 20;
-
- // yx, bias less for large block size
- if (cm->tx_mode != ONLY_4X4)
- bias >>= 1;
-
- if (filt_direction <= 0 && filt_low != filt_mid) {
- // Get Low filter error score
- if (ss_err[filt_low] < 0) {
- ss_err[filt_low] = try_filter_frame(sd, cpi, filt_low, partial_frame);
- }
- // If value is close to the best so far then bias towards a lower loop
- // filter value.
- if ((ss_err[filt_low] - bias) < best_err) {
- // Was it actually better than the previous best?
- if (ss_err[filt_low] < best_err)
- best_err = ss_err[filt_low];
-
- filt_best = filt_low;
- }
- }
-
- // Now look at filt_high
- if (filt_direction >= 0 && filt_high != filt_mid) {
- if (ss_err[filt_high] < 0) {
- ss_err[filt_high] = try_filter_frame(sd, cpi, filt_high, partial_frame);
- }
- // Was it better than the previous best?
- if (ss_err[filt_high] < (best_err - bias)) {
- best_err = ss_err[filt_high];
- filt_best = filt_high;
- }
- }
-
- // Half the step distance if the best filter value was the same as last time
- if (filt_best == filt_mid) {
- filter_step /= 2;
- filt_direction = 0;
- } else {
- filt_direction = (filt_best < filt_mid) ? -1 : 1;
- filt_mid = filt_best;
- }
- }
-
- return filt_best;
-}
-
-void vp10_pick_filter_level(const YV12_BUFFER_CONFIG *sd, VP10_COMP *cpi,
- LPF_PICK_METHOD method) {
- VP10_COMMON *const cm = &cpi->common;
- struct loopfilter *const lf = &cm->lf;
-
- lf->sharpness_level = cm->frame_type == KEY_FRAME ? 0
- : cpi->oxcf.sharpness;
-
- if (method == LPF_PICK_MINIMAL_LPF && lf->filter_level) {
- lf->filter_level = 0;
- } else if (method >= LPF_PICK_FROM_Q) {
- const int min_filter_level = 0;
- const int max_filter_level = get_max_filter_level(cpi);
- const int q = vp10_ac_quant(cm->base_qindex, 0, cm->bit_depth);
- // These values were determined by linear fitting the result of the
- // searched level, filt_guess = q * 0.316206 + 3.87252
-#if CONFIG_VP9_HIGHBITDEPTH
- int filt_guess;
- switch (cm->bit_depth) {
- case VPX_BITS_8:
- filt_guess = ROUND_POWER_OF_TWO(q * 20723 + 1015158, 18);
- break;
- case VPX_BITS_10:
- filt_guess = ROUND_POWER_OF_TWO(q * 20723 + 4060632, 20);
- break;
- case VPX_BITS_12:
- filt_guess = ROUND_POWER_OF_TWO(q * 20723 + 16242526, 22);
- break;
- default:
- assert(0 && "bit_depth should be VPX_BITS_8, VPX_BITS_10 "
- "or VPX_BITS_12");
- return;
- }
-#else
- int filt_guess = ROUND_POWER_OF_TWO(q * 20723 + 1015158, 18);
-#endif // CONFIG_VP9_HIGHBITDEPTH
- if (cm->frame_type == KEY_FRAME)
- filt_guess -= 4;
- lf->filter_level = clamp(filt_guess, min_filter_level, max_filter_level);
- } else {
- lf->filter_level = search_filter_level(sd, cpi,
- method == LPF_PICK_FROM_SUBIMAGE);
- }
-}
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