| /* |
| * 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_dsp_rtcd.h" |
| #include "./vpx_config.h" |
| #include "./vpx_scale_rtcd.h" |
| #include "./vp9_rtcd.h" |
| |
| #include "vpx_dsp/vpx_dsp_common.h" |
| #include "vpx_ports/mem.h" |
| #include "vpx_ports/system_state.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_textblit.h" |
| |
| #if CONFIG_VP9_POSTPROC |
| static const int16_t kernel5[] = { |
| 1, 1, 4, 1, 1 |
| }; |
| |
| const int16_t 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 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; |
| } |
| } |
| } |
| |
| #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; |
| |
| vpx_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; |
| } |
| |
| 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 = VPXMIN(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; |
| } |
| |
| vpx_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 (vpx_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 (vpx_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); |
| } |
| vpx_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 |
