ref: b4aa5c9408595e6d618a6bd2718435ee40eeffb7
dir: /vp9/common/vp9_postproc.c/
/* * 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