summaryrefslogtreecommitdiffstats
path: root/media/libvpx/vp9/common/vp9_postproc.c
diff options
context:
space:
mode:
Diffstat (limited to 'media/libvpx/vp9/common/vp9_postproc.c')
-rw-r--r--media/libvpx/vp9/common/vp9_postproc.c745
1 files changed, 745 insertions, 0 deletions
diff --git a/media/libvpx/vp9/common/vp9_postproc.c b/media/libvpx/vp9/common/vp9_postproc.c
new file mode 100644
index 000000000..d26a6eb5c
--- /dev/null
+++ b/media/libvpx/vp9/common/vp9_postproc.c
@@ -0,0 +1,745 @@
+/*
+ * 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 <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "./vpx_config.h"
+#include "./vpx_scale_rtcd.h"
+#include "./vp9_rtcd.h"
+
+#include "vpx_ports/mem.h"
+#include "vpx_scale/vpx_scale.h"
+#include "vpx_scale/yv12config.h"
+
+#include "vp9/common/vp9_onyxc_int.h"
+#include "vp9/common/vp9_postproc.h"
+#include "vp9/common/vp9_systemdependent.h"
+#include "vp9/common/vp9_textblit.h"
+
+#if CONFIG_VP9_POSTPROC
+static const short kernel5[] = {
+ 1, 1, 4, 1, 1
+};
+
+const short vp9_rv[] = {
+ 8, 5, 2, 2, 8, 12, 4, 9, 8, 3,
+ 0, 3, 9, 0, 0, 0, 8, 3, 14, 4,
+ 10, 1, 11, 14, 1, 14, 9, 6, 12, 11,
+ 8, 6, 10, 0, 0, 8, 9, 0, 3, 14,
+ 8, 11, 13, 4, 2, 9, 0, 3, 9, 6,
+ 1, 2, 3, 14, 13, 1, 8, 2, 9, 7,
+ 3, 3, 1, 13, 13, 6, 6, 5, 2, 7,
+ 11, 9, 11, 8, 7, 3, 2, 0, 13, 13,
+ 14, 4, 12, 5, 12, 10, 8, 10, 13, 10,
+ 4, 14, 4, 10, 0, 8, 11, 1, 13, 7,
+ 7, 14, 6, 14, 13, 2, 13, 5, 4, 4,
+ 0, 10, 0, 5, 13, 2, 12, 7, 11, 13,
+ 8, 0, 4, 10, 7, 2, 7, 2, 2, 5,
+ 3, 4, 7, 3, 3, 14, 14, 5, 9, 13,
+ 3, 14, 3, 6, 3, 0, 11, 8, 13, 1,
+ 13, 1, 12, 0, 10, 9, 7, 6, 2, 8,
+ 5, 2, 13, 7, 1, 13, 14, 7, 6, 7,
+ 9, 6, 10, 11, 7, 8, 7, 5, 14, 8,
+ 4, 4, 0, 8, 7, 10, 0, 8, 14, 11,
+ 3, 12, 5, 7, 14, 3, 14, 5, 2, 6,
+ 11, 12, 12, 8, 0, 11, 13, 1, 2, 0,
+ 5, 10, 14, 7, 8, 0, 4, 11, 0, 8,
+ 0, 3, 10, 5, 8, 0, 11, 6, 7, 8,
+ 10, 7, 13, 9, 2, 5, 1, 5, 10, 2,
+ 4, 3, 5, 6, 10, 8, 9, 4, 11, 14,
+ 0, 10, 0, 5, 13, 2, 12, 7, 11, 13,
+ 8, 0, 4, 10, 7, 2, 7, 2, 2, 5,
+ 3, 4, 7, 3, 3, 14, 14, 5, 9, 13,
+ 3, 14, 3, 6, 3, 0, 11, 8, 13, 1,
+ 13, 1, 12, 0, 10, 9, 7, 6, 2, 8,
+ 5, 2, 13, 7, 1, 13, 14, 7, 6, 7,
+ 9, 6, 10, 11, 7, 8, 7, 5, 14, 8,
+ 4, 4, 0, 8, 7, 10, 0, 8, 14, 11,
+ 3, 12, 5, 7, 14, 3, 14, 5, 2, 6,
+ 11, 12, 12, 8, 0, 11, 13, 1, 2, 0,
+ 5, 10, 14, 7, 8, 0, 4, 11, 0, 8,
+ 0, 3, 10, 5, 8, 0, 11, 6, 7, 8,
+ 10, 7, 13, 9, 2, 5, 1, 5, 10, 2,
+ 4, 3, 5, 6, 10, 8, 9, 4, 11, 14,
+ 3, 8, 3, 7, 8, 5, 11, 4, 12, 3,
+ 11, 9, 14, 8, 14, 13, 4, 3, 1, 2,
+ 14, 6, 5, 4, 4, 11, 4, 6, 2, 1,
+ 5, 8, 8, 12, 13, 5, 14, 10, 12, 13,
+ 0, 9, 5, 5, 11, 10, 13, 9, 10, 13,
+};
+
+static const uint8_t q_diff_thresh = 20;
+static const uint8_t last_q_thresh = 170;
+
+void vp9_post_proc_down_and_across_c(const uint8_t *src_ptr,
+ uint8_t *dst_ptr,
+ int src_pixels_per_line,
+ int dst_pixels_per_line,
+ int rows,
+ int cols,
+ int flimit) {
+ uint8_t const *p_src;
+ uint8_t *p_dst;
+ int row, col, i, v, kernel;
+ int pitch = src_pixels_per_line;
+ uint8_t d[8];
+ (void)dst_pixels_per_line;
+
+ for (row = 0; row < rows; row++) {
+ /* post_proc_down for one row */
+ p_src = src_ptr;
+ p_dst = dst_ptr;
+
+ for (col = 0; col < cols; col++) {
+ kernel = 4;
+ v = p_src[col];
+
+ for (i = -2; i <= 2; i++) {
+ if (abs(v - p_src[col + i * pitch]) > flimit)
+ goto down_skip_convolve;
+
+ kernel += kernel5[2 + i] * p_src[col + i * pitch];
+ }
+
+ v = (kernel >> 3);
+ down_skip_convolve:
+ p_dst[col] = v;
+ }
+
+ /* now post_proc_across */
+ p_src = dst_ptr;
+ p_dst = dst_ptr;
+
+ for (i = 0; i < 8; i++)
+ d[i] = p_src[i];
+
+ for (col = 0; col < cols; col++) {
+ kernel = 4;
+ v = p_src[col];
+
+ d[col & 7] = v;
+
+ for (i = -2; i <= 2; i++) {
+ if (abs(v - p_src[col + i]) > flimit)
+ goto across_skip_convolve;
+
+ kernel += kernel5[2 + i] * p_src[col + i];
+ }
+
+ d[col & 7] = (kernel >> 3);
+ across_skip_convolve:
+
+ if (col >= 2)
+ p_dst[col - 2] = d[(col - 2) & 7];
+ }
+
+ /* handle the last two pixels */
+ p_dst[col - 2] = d[(col - 2) & 7];
+ p_dst[col - 1] = d[(col - 1) & 7];
+
+
+ /* next row */
+ src_ptr += pitch;
+ dst_ptr += pitch;
+ }
+}
+
+#if CONFIG_VP9_HIGHBITDEPTH
+void vp9_highbd_post_proc_down_and_across_c(const uint16_t *src_ptr,
+ uint16_t *dst_ptr,
+ int src_pixels_per_line,
+ int dst_pixels_per_line,
+ int rows,
+ int cols,
+ int flimit) {
+ uint16_t const *p_src;
+ uint16_t *p_dst;
+ int row, col, i, v, kernel;
+ int pitch = src_pixels_per_line;
+ uint16_t d[8];
+
+ for (row = 0; row < rows; row++) {
+ // post_proc_down for one row.
+ p_src = src_ptr;
+ p_dst = dst_ptr;
+
+ for (col = 0; col < cols; col++) {
+ kernel = 4;
+ v = p_src[col];
+
+ for (i = -2; i <= 2; i++) {
+ if (abs(v - p_src[col + i * pitch]) > flimit)
+ goto down_skip_convolve;
+
+ kernel += kernel5[2 + i] * p_src[col + i * pitch];
+ }
+
+ v = (kernel >> 3);
+
+ down_skip_convolve:
+ p_dst[col] = v;
+ }
+
+ /* now post_proc_across */
+ p_src = dst_ptr;
+ p_dst = dst_ptr;
+
+ for (i = 0; i < 8; i++)
+ d[i] = p_src[i];
+
+ for (col = 0; col < cols; col++) {
+ kernel = 4;
+ v = p_src[col];
+
+ d[col & 7] = v;
+
+ for (i = -2; i <= 2; i++) {
+ if (abs(v - p_src[col + i]) > flimit)
+ goto across_skip_convolve;
+
+ kernel += kernel5[2 + i] * p_src[col + i];
+ }
+
+ d[col & 7] = (kernel >> 3);
+
+ across_skip_convolve:
+ if (col >= 2)
+ p_dst[col - 2] = d[(col - 2) & 7];
+ }
+
+ /* handle the last two pixels */
+ p_dst[col - 2] = d[(col - 2) & 7];
+ p_dst[col - 1] = d[(col - 1) & 7];
+
+
+ /* next row */
+ src_ptr += pitch;
+ dst_ptr += dst_pixels_per_line;
+ }
+}
+#endif // CONFIG_VP9_HIGHBITDEPTH
+
+static int q2mbl(int x) {
+ if (x < 20) x = 20;
+
+ x = 50 + (x - 50) * 10 / 8;
+ return x * x / 3;
+}
+
+void vp9_mbpost_proc_across_ip_c(uint8_t *src, int pitch,
+ int rows, int cols, int flimit) {
+ int r, c, i;
+ uint8_t *s = src;
+ uint8_t d[16];
+
+ for (r = 0; r < rows; r++) {
+ int sumsq = 0;
+ int sum = 0;
+
+ for (i = -8; i <= 6; i++) {
+ sumsq += s[i] * s[i];
+ sum += s[i];
+ d[i + 8] = 0;
+ }
+
+ for (c = 0; c < cols + 8; c++) {
+ int x = s[c + 7] - s[c - 8];
+ int y = s[c + 7] + s[c - 8];
+
+ sum += x;
+ sumsq += x * y;
+
+ d[c & 15] = s[c];
+
+ if (sumsq * 15 - sum * sum < flimit) {
+ d[c & 15] = (8 + sum + s[c]) >> 4;
+ }
+
+ s[c - 8] = d[(c - 8) & 15];
+ }
+ s += pitch;
+ }
+}
+
+#if CONFIG_VP9_HIGHBITDEPTH
+void vp9_highbd_mbpost_proc_across_ip_c(uint16_t *src, int pitch,
+ int rows, int cols, int flimit) {
+ int r, c, i;
+
+ uint16_t *s = src;
+ uint16_t d[16];
+
+
+ for (r = 0; r < rows; r++) {
+ int sumsq = 0;
+ int sum = 0;
+
+ for (i = -8; i <= 6; i++) {
+ sumsq += s[i] * s[i];
+ sum += s[i];
+ d[i + 8] = 0;
+ }
+
+ for (c = 0; c < cols + 8; c++) {
+ int x = s[c + 7] - s[c - 8];
+ int y = s[c + 7] + s[c - 8];
+
+ sum += x;
+ sumsq += x * y;
+
+ d[c & 15] = s[c];
+
+ if (sumsq * 15 - sum * sum < flimit) {
+ d[c & 15] = (8 + sum + s[c]) >> 4;
+ }
+
+ s[c - 8] = d[(c - 8) & 15];
+ }
+
+ s += pitch;
+ }
+}
+#endif // CONFIG_VP9_HIGHBITDEPTH
+
+void vp9_mbpost_proc_down_c(uint8_t *dst, int pitch,
+ int rows, int cols, int flimit) {
+ int r, c, i;
+ const short *rv3 = &vp9_rv[63 & rand()]; // NOLINT
+
+ for (c = 0; c < cols; c++) {
+ uint8_t *s = &dst[c];
+ int sumsq = 0;
+ int sum = 0;
+ uint8_t d[16];
+ const short *rv2 = rv3 + ((c * 17) & 127);
+
+ for (i = -8; i <= 6; i++) {
+ sumsq += s[i * pitch] * s[i * pitch];
+ sum += s[i * pitch];
+ }
+
+ for (r = 0; r < rows + 8; r++) {
+ sumsq += s[7 * pitch] * s[ 7 * pitch] - s[-8 * pitch] * s[-8 * pitch];
+ sum += s[7 * pitch] - s[-8 * pitch];
+ d[r & 15] = s[0];
+
+ if (sumsq * 15 - sum * sum < flimit) {
+ d[r & 15] = (rv2[r & 127] + sum + s[0]) >> 4;
+ }
+
+ s[-8 * pitch] = d[(r - 8) & 15];
+ s += pitch;
+ }
+ }
+}
+
+#if CONFIG_VP9_HIGHBITDEPTH
+void vp9_highbd_mbpost_proc_down_c(uint16_t *dst, int pitch,
+ int rows, int cols, int flimit) {
+ int r, c, i;
+ const int16_t *rv3 = &vp9_rv[63 & rand()]; // NOLINT
+
+ for (c = 0; c < cols; c++) {
+ uint16_t *s = &dst[c];
+ int sumsq = 0;
+ int sum = 0;
+ uint16_t d[16];
+ const int16_t *rv2 = rv3 + ((c * 17) & 127);
+
+ for (i = -8; i <= 6; i++) {
+ sumsq += s[i * pitch] * s[i * pitch];
+ sum += s[i * pitch];
+ }
+
+ for (r = 0; r < rows + 8; r++) {
+ sumsq += s[7 * pitch] * s[ 7 * pitch] - s[-8 * pitch] * s[-8 * pitch];
+ sum += s[7 * pitch] - s[-8 * pitch];
+ d[r & 15] = s[0];
+
+ if (sumsq * 15 - sum * sum < flimit) {
+ d[r & 15] = (rv2[r & 127] + sum + s[0]) >> 4;
+ }
+
+ s[-8 * pitch] = d[(r - 8) & 15];
+ s += pitch;
+ }
+ }
+}
+#endif // CONFIG_VP9_HIGHBITDEPTH
+
+static void deblock_and_de_macro_block(YV12_BUFFER_CONFIG *source,
+ YV12_BUFFER_CONFIG *post,
+ int q,
+ int low_var_thresh,
+ int flag) {
+ double level = 6.0e-05 * q * q * q - .0067 * q * q + .306 * q + .0065;
+ int ppl = (int)(level + .5);
+ (void) low_var_thresh;
+ (void) flag;
+
+#if CONFIG_VP9_HIGHBITDEPTH
+ if (source->flags & YV12_FLAG_HIGHBITDEPTH) {
+ vp9_highbd_post_proc_down_and_across(CONVERT_TO_SHORTPTR(source->y_buffer),
+ CONVERT_TO_SHORTPTR(post->y_buffer),
+ source->y_stride, post->y_stride,
+ source->y_height, source->y_width,
+ ppl);
+
+ vp9_highbd_mbpost_proc_across_ip(CONVERT_TO_SHORTPTR(post->y_buffer),
+ post->y_stride, post->y_height,
+ post->y_width, q2mbl(q));
+
+ vp9_highbd_mbpost_proc_down(CONVERT_TO_SHORTPTR(post->y_buffer),
+ post->y_stride, post->y_height,
+ post->y_width, q2mbl(q));
+
+ vp9_highbd_post_proc_down_and_across(CONVERT_TO_SHORTPTR(source->u_buffer),
+ CONVERT_TO_SHORTPTR(post->u_buffer),
+ source->uv_stride, post->uv_stride,
+ source->uv_height, source->uv_width,
+ ppl);
+ vp9_highbd_post_proc_down_and_across(CONVERT_TO_SHORTPTR(source->v_buffer),
+ CONVERT_TO_SHORTPTR(post->v_buffer),
+ source->uv_stride, post->uv_stride,
+ source->uv_height, source->uv_width,
+ ppl);
+ } else {
+ vp9_post_proc_down_and_across(source->y_buffer, post->y_buffer,
+ source->y_stride, post->y_stride,
+ source->y_height, source->y_width, ppl);
+
+ vp9_mbpost_proc_across_ip(post->y_buffer, post->y_stride, post->y_height,
+ post->y_width, q2mbl(q));
+
+ vp9_mbpost_proc_down(post->y_buffer, post->y_stride, post->y_height,
+ post->y_width, q2mbl(q));
+
+ vp9_post_proc_down_and_across(source->u_buffer, post->u_buffer,
+ source->uv_stride, post->uv_stride,
+ source->uv_height, source->uv_width, ppl);
+ vp9_post_proc_down_and_across(source->v_buffer, post->v_buffer,
+ source->uv_stride, post->uv_stride,
+ source->uv_height, source->uv_width, ppl);
+ }
+#else
+ vp9_post_proc_down_and_across(source->y_buffer, post->y_buffer,
+ source->y_stride, post->y_stride,
+ source->y_height, source->y_width, ppl);
+
+ vp9_mbpost_proc_across_ip(post->y_buffer, post->y_stride, post->y_height,
+ post->y_width, q2mbl(q));
+
+ vp9_mbpost_proc_down(post->y_buffer, post->y_stride, post->y_height,
+ post->y_width, q2mbl(q));
+
+ vp9_post_proc_down_and_across(source->u_buffer, post->u_buffer,
+ source->uv_stride, post->uv_stride,
+ source->uv_height, source->uv_width, ppl);
+ vp9_post_proc_down_and_across(source->v_buffer, post->v_buffer,
+ source->uv_stride, post->uv_stride,
+ source->uv_height, source->uv_width, ppl);
+#endif // CONFIG_VP9_HIGHBITDEPTH
+}
+
+void vp9_deblock(const YV12_BUFFER_CONFIG *src, YV12_BUFFER_CONFIG *dst,
+ int q) {
+ const int ppl = (int)(6.0e-05 * q * q * q - 0.0067 * q * q + 0.306 * q
+ + 0.0065 + 0.5);
+ int i;
+
+ const uint8_t *const srcs[3] = {src->y_buffer, src->u_buffer, src->v_buffer};
+ const int src_strides[3] = {src->y_stride, src->uv_stride, src->uv_stride};
+ const int src_widths[3] = {src->y_width, src->uv_width, src->uv_width};
+ const int src_heights[3] = {src->y_height, src->uv_height, src->uv_height};
+
+ uint8_t *const dsts[3] = {dst->y_buffer, dst->u_buffer, dst->v_buffer};
+ const int dst_strides[3] = {dst->y_stride, dst->uv_stride, dst->uv_stride};
+
+ for (i = 0; i < MAX_MB_PLANE; ++i) {
+#if CONFIG_VP9_HIGHBITDEPTH
+ assert((src->flags & YV12_FLAG_HIGHBITDEPTH) ==
+ (dst->flags & YV12_FLAG_HIGHBITDEPTH));
+ if (src->flags & YV12_FLAG_HIGHBITDEPTH) {
+ vp9_highbd_post_proc_down_and_across(CONVERT_TO_SHORTPTR(srcs[i]),
+ CONVERT_TO_SHORTPTR(dsts[i]),
+ src_strides[i], dst_strides[i],
+ src_heights[i], src_widths[i], ppl);
+ } else {
+ vp9_post_proc_down_and_across(srcs[i], dsts[i],
+ src_strides[i], dst_strides[i],
+ src_heights[i], src_widths[i], ppl);
+ }
+#else
+ vp9_post_proc_down_and_across(srcs[i], dsts[i],
+ src_strides[i], dst_strides[i],
+ src_heights[i], src_widths[i], ppl);
+#endif // CONFIG_VP9_HIGHBITDEPTH
+ }
+}
+
+void vp9_denoise(const YV12_BUFFER_CONFIG *src, YV12_BUFFER_CONFIG *dst,
+ int q) {
+ const int ppl = (int)(6.0e-05 * q * q * q - 0.0067 * q * q + 0.306 * q
+ + 0.0065 + 0.5);
+ int i;
+
+ const uint8_t *const srcs[3] = {src->y_buffer, src->u_buffer, src->v_buffer};
+ const int src_strides[3] = {src->y_stride, src->uv_stride, src->uv_stride};
+ const int src_widths[3] = {src->y_width, src->uv_width, src->uv_width};
+ const int src_heights[3] = {src->y_height, src->uv_height, src->uv_height};
+
+ uint8_t *const dsts[3] = {dst->y_buffer, dst->u_buffer, dst->v_buffer};
+ const int dst_strides[3] = {dst->y_stride, dst->uv_stride, dst->uv_stride};
+
+ for (i = 0; i < MAX_MB_PLANE; ++i) {
+ const int src_stride = src_strides[i];
+ const int src_width = src_widths[i] - 4;
+ const int src_height = src_heights[i] - 4;
+ const int dst_stride = dst_strides[i];
+
+#if CONFIG_VP9_HIGHBITDEPTH
+ assert((src->flags & YV12_FLAG_HIGHBITDEPTH) ==
+ (dst->flags & YV12_FLAG_HIGHBITDEPTH));
+ if (src->flags & YV12_FLAG_HIGHBITDEPTH) {
+ const uint16_t *const src_plane = CONVERT_TO_SHORTPTR(
+ srcs[i] + 2 * src_stride + 2);
+ uint16_t *const dst_plane = CONVERT_TO_SHORTPTR(
+ dsts[i] + 2 * dst_stride + 2);
+ vp9_highbd_post_proc_down_and_across(src_plane, dst_plane, src_stride,
+ dst_stride, src_height, src_width,
+ ppl);
+ } else {
+ const uint8_t *const src_plane = srcs[i] + 2 * src_stride + 2;
+ uint8_t *const dst_plane = dsts[i] + 2 * dst_stride + 2;
+
+ vp9_post_proc_down_and_across(src_plane, dst_plane, src_stride,
+ dst_stride, src_height, src_width, ppl);
+ }
+#else
+ const uint8_t *const src_plane = srcs[i] + 2 * src_stride + 2;
+ uint8_t *const dst_plane = dsts[i] + 2 * dst_stride + 2;
+ vp9_post_proc_down_and_across(src_plane, dst_plane, src_stride, dst_stride,
+ src_height, src_width, ppl);
+#endif
+ }
+}
+
+static double gaussian(double sigma, double mu, double x) {
+ return 1 / (sigma * sqrt(2.0 * 3.14159265)) *
+ (exp(-(x - mu) * (x - mu) / (2 * sigma * sigma)));
+}
+
+static void fillrd(struct postproc_state *state, int q, int a) {
+ char char_dist[300];
+
+ double sigma;
+ int ai = a, qi = q, i;
+
+ vp9_clear_system_state();
+
+ sigma = ai + .5 + .6 * (63 - qi) / 63.0;
+
+ /* set up a lookup table of 256 entries that matches
+ * a gaussian distribution with sigma determined by q.
+ */
+ {
+ int next, j;
+
+ next = 0;
+
+ for (i = -32; i < 32; i++) {
+ int a_i = (int)(0.5 + 256 * gaussian(sigma, 0, i));
+
+ if (a_i) {
+ for (j = 0; j < a_i; j++) {
+ char_dist[next + j] = (char) i;
+ }
+
+ next = next + j;
+ }
+ }
+
+ for (; next < 256; next++)
+ char_dist[next] = 0;
+ }
+
+ for (i = 0; i < 3072; i++) {
+ state->noise[i] = char_dist[rand() & 0xff]; // NOLINT
+ }
+
+ for (i = 0; i < 16; i++) {
+ state->blackclamp[i] = -char_dist[0];
+ state->whiteclamp[i] = -char_dist[0];
+ state->bothclamp[i] = -2 * char_dist[0];
+ }
+
+ state->last_q = q;
+ state->last_noise = a;
+}
+
+void vp9_plane_add_noise_c(uint8_t *start, char *noise,
+ char blackclamp[16],
+ char whiteclamp[16],
+ char bothclamp[16],
+ unsigned int width, unsigned int height, int pitch) {
+ unsigned int i, j;
+
+ // TODO(jbb): why does simd code use both but c doesn't, normalize and
+ // fix..
+ (void) bothclamp;
+ for (i = 0; i < height; i++) {
+ uint8_t *pos = start + i * pitch;
+ char *ref = (char *)(noise + (rand() & 0xff)); // NOLINT
+
+ for (j = 0; j < width; j++) {
+ if (pos[j] < blackclamp[0])
+ pos[j] = blackclamp[0];
+
+ if (pos[j] > 255 + whiteclamp[0])
+ pos[j] = 255 + whiteclamp[0];
+
+ pos[j] += ref[j];
+ }
+ }
+}
+
+static void swap_mi_and_prev_mi(VP9_COMMON *cm) {
+ // Current mip will be the prev_mip for the next frame.
+ MODE_INFO *temp = cm->postproc_state.prev_mip;
+ cm->postproc_state.prev_mip = cm->mip;
+ cm->mip = temp;
+
+ // Update the upper left visible macroblock ptrs.
+ cm->mi = cm->mip + cm->mi_stride + 1;
+ cm->postproc_state.prev_mi = cm->postproc_state.prev_mip + cm->mi_stride + 1;
+}
+
+int vp9_post_proc_frame(struct VP9Common *cm,
+ YV12_BUFFER_CONFIG *dest, vp9_ppflags_t *ppflags) {
+ const int q = MIN(105, cm->lf.filter_level * 2);
+ const int flags = ppflags->post_proc_flag;
+ YV12_BUFFER_CONFIG *const ppbuf = &cm->post_proc_buffer;
+ struct postproc_state *const ppstate = &cm->postproc_state;
+
+ if (!cm->frame_to_show)
+ return -1;
+
+ if (!flags) {
+ *dest = *cm->frame_to_show;
+ return 0;
+ }
+
+ vp9_clear_system_state();
+
+ // Alloc memory for prev_mip in the first frame.
+ if (cm->current_video_frame == 1) {
+ cm->postproc_state.last_base_qindex = cm->base_qindex;
+ cm->postproc_state.last_frame_valid = 1;
+ ppstate->prev_mip = vpx_calloc(cm->mi_alloc_size, sizeof(*cm->mip));
+ if (!ppstate->prev_mip) {
+ return 1;
+ }
+ ppstate->prev_mi = ppstate->prev_mip + cm->mi_stride + 1;
+ memset(ppstate->prev_mip, 0,
+ cm->mi_stride * (cm->mi_rows + 1) * sizeof(*cm->mip));
+ }
+
+ // Allocate post_proc_buffer_int if needed.
+ if ((flags & VP9D_MFQE) && !cm->post_proc_buffer_int.buffer_alloc) {
+ if ((flags & VP9D_DEMACROBLOCK) || (flags & VP9D_DEBLOCK)) {
+ const int width = ALIGN_POWER_OF_TWO(cm->width, 4);
+ const int height = ALIGN_POWER_OF_TWO(cm->height, 4);
+
+ if (vp9_alloc_frame_buffer(&cm->post_proc_buffer_int, width, height,
+ cm->subsampling_x, cm->subsampling_y,
+#if CONFIG_VP9_HIGHBITDEPTH
+ cm->use_highbitdepth,
+#endif // CONFIG_VP9_HIGHBITDEPTH
+ VP9_ENC_BORDER_IN_PIXELS,
+ cm->byte_alignment) < 0) {
+ vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
+ "Failed to allocate MFQE framebuffer");
+ }
+
+ // Ensure that postproc is set to all 0s so that post proc
+ // doesn't pull random data in from edge.
+ memset(cm->post_proc_buffer_int.buffer_alloc, 128,
+ cm->post_proc_buffer.frame_size);
+ }
+ }
+
+ if (vp9_realloc_frame_buffer(&cm->post_proc_buffer, cm->width, cm->height,
+ cm->subsampling_x, cm->subsampling_y,
+#if CONFIG_VP9_HIGHBITDEPTH
+ cm->use_highbitdepth,
+#endif
+ VP9_DEC_BORDER_IN_PIXELS, cm->byte_alignment,
+ NULL, NULL, NULL) < 0)
+ vpx_internal_error(&cm->error, VPX_CODEC_MEM_ERROR,
+ "Failed to allocate post-processing buffer");
+
+ if ((flags & VP9D_MFQE) && cm->current_video_frame >= 2 &&
+ cm->postproc_state.last_frame_valid && cm->bit_depth == 8 &&
+ cm->postproc_state.last_base_qindex <= last_q_thresh &&
+ cm->base_qindex - cm->postproc_state.last_base_qindex >= q_diff_thresh) {
+ vp9_mfqe(cm);
+ // TODO(jackychen): Consider whether enable deblocking by default
+ // if mfqe is enabled. Need to take both the quality and the speed
+ // into consideration.
+ if ((flags & VP9D_DEMACROBLOCK) || (flags & VP9D_DEBLOCK)) {
+ vp8_yv12_copy_frame(ppbuf, &cm->post_proc_buffer_int);
+ }
+ if ((flags & VP9D_DEMACROBLOCK) && cm->post_proc_buffer_int.buffer_alloc) {
+ deblock_and_de_macro_block(&cm->post_proc_buffer_int, ppbuf,
+ q + (ppflags->deblocking_level - 5) * 10,
+ 1, 0);
+ } else if (flags & VP9D_DEBLOCK) {
+ vp9_deblock(&cm->post_proc_buffer_int, ppbuf, q);
+ } else {
+ vp8_yv12_copy_frame(&cm->post_proc_buffer_int, ppbuf);
+ }
+ } else if (flags & VP9D_DEMACROBLOCK) {
+ deblock_and_de_macro_block(cm->frame_to_show, ppbuf,
+ q + (ppflags->deblocking_level - 5) * 10, 1, 0);
+ } else if (flags & VP9D_DEBLOCK) {
+ vp9_deblock(cm->frame_to_show, ppbuf, q);
+ } else {
+ vp8_yv12_copy_frame(cm->frame_to_show, ppbuf);
+ }
+
+ cm->postproc_state.last_base_qindex = cm->base_qindex;
+ cm->postproc_state.last_frame_valid = 1;
+
+ if (flags & VP9D_ADDNOISE) {
+ const int noise_level = ppflags->noise_level;
+ if (ppstate->last_q != q ||
+ ppstate->last_noise != noise_level) {
+ fillrd(ppstate, 63 - q, noise_level);
+ }
+
+ vp9_plane_add_noise(ppbuf->y_buffer, ppstate->noise, ppstate->blackclamp,
+ ppstate->whiteclamp, ppstate->bothclamp,
+ ppbuf->y_width, ppbuf->y_height, ppbuf->y_stride);
+ }
+
+ *dest = *ppbuf;
+
+ /* handle problem with extending borders */
+ dest->y_width = cm->width;
+ dest->y_height = cm->height;
+ dest->uv_width = dest->y_width >> cm->subsampling_x;
+ dest->uv_height = dest->y_height >> cm->subsampling_y;
+
+ swap_mi_and_prev_mi(cm);
+ return 0;
+}
+#endif // CONFIG_VP9_POSTPROC
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-27 04:02:21 +0000