163 lines
6.1 KiB
C
163 lines
6.1 KiB
C
/*
|
|
* Copyright (c) 2016, Alliance for Open Media. All rights reserved.
|
|
*
|
|
* This source code is subject to the terms of the BSD 2 Clause License and
|
|
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
|
|
* was not distributed with this source code in the LICENSE file, you can
|
|
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
|
|
* Media Patent License 1.0 was not distributed with this source code in the
|
|
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
|
|
*/
|
|
|
|
#include <assert.h>
|
|
|
|
#include "aom_dsp/aom_dsp_common.h"
|
|
#include "aom_mem/aom_mem.h"
|
|
#include "aom_ports/mem.h"
|
|
|
|
#include "av1/common/common.h"
|
|
#include "av1/encoder/extend.h"
|
|
|
|
static void copy_and_extend_plane(const uint8_t *src, int src_pitch,
|
|
uint8_t *dst, int dst_pitch, int w, int h,
|
|
int extend_top, int extend_left,
|
|
int extend_bottom, int extend_right,
|
|
int chroma_step) {
|
|
int i, linesize;
|
|
// copy the left and right most columns out
|
|
const uint8_t *src_ptr1 = src;
|
|
const uint8_t *src_ptr2 = src + (w - 1) * chroma_step;
|
|
uint8_t *dst_ptr1 = dst - extend_left;
|
|
uint8_t *dst_ptr2 = dst + w;
|
|
|
|
for (i = 0; i < h; i++) {
|
|
memset(dst_ptr1, src_ptr1[0], extend_left);
|
|
if (chroma_step == 1) {
|
|
memcpy(dst_ptr1 + extend_left, src_ptr1, w);
|
|
} else {
|
|
for (int j = 0; j < w; j++) {
|
|
dst_ptr1[extend_left + j] = src_ptr1[chroma_step * j];
|
|
}
|
|
}
|
|
memset(dst_ptr2, src_ptr2[0], extend_right);
|
|
src_ptr1 += src_pitch;
|
|
src_ptr2 += src_pitch;
|
|
dst_ptr1 += dst_pitch;
|
|
dst_ptr2 += dst_pitch;
|
|
}
|
|
|
|
// Now copy the top and bottom lines into each line of the respective
|
|
// borders
|
|
src_ptr1 = dst - extend_left;
|
|
src_ptr2 = dst + dst_pitch * (h - 1) - extend_left;
|
|
dst_ptr1 = dst + dst_pitch * (-extend_top) - extend_left;
|
|
dst_ptr2 = dst + dst_pitch * (h)-extend_left;
|
|
linesize = extend_left + extend_right + w;
|
|
assert(linesize <= dst_pitch);
|
|
|
|
for (i = 0; i < extend_top; i++) {
|
|
memcpy(dst_ptr1, src_ptr1, linesize);
|
|
dst_ptr1 += dst_pitch;
|
|
}
|
|
|
|
for (i = 0; i < extend_bottom; i++) {
|
|
memcpy(dst_ptr2, src_ptr2, linesize);
|
|
dst_ptr2 += dst_pitch;
|
|
}
|
|
}
|
|
|
|
static void highbd_copy_and_extend_plane(const uint8_t *src8, int src_pitch,
|
|
uint8_t *dst8, int dst_pitch, int w,
|
|
int h, int extend_top, int extend_left,
|
|
int extend_bottom, int extend_right) {
|
|
int i, linesize;
|
|
uint16_t *src = CONVERT_TO_SHORTPTR(src8);
|
|
uint16_t *dst = CONVERT_TO_SHORTPTR(dst8);
|
|
|
|
// copy the left and right most columns out
|
|
const uint16_t *src_ptr1 = src;
|
|
const uint16_t *src_ptr2 = src + w - 1;
|
|
uint16_t *dst_ptr1 = dst - extend_left;
|
|
uint16_t *dst_ptr2 = dst + w;
|
|
|
|
for (i = 0; i < h; i++) {
|
|
aom_memset16(dst_ptr1, src_ptr1[0], extend_left);
|
|
memcpy(dst_ptr1 + extend_left, src_ptr1, w * sizeof(src_ptr1[0]));
|
|
aom_memset16(dst_ptr2, src_ptr2[0], extend_right);
|
|
src_ptr1 += src_pitch;
|
|
src_ptr2 += src_pitch;
|
|
dst_ptr1 += dst_pitch;
|
|
dst_ptr2 += dst_pitch;
|
|
}
|
|
|
|
// Now copy the top and bottom lines into each line of the respective
|
|
// borders
|
|
src_ptr1 = dst - extend_left;
|
|
src_ptr2 = dst + dst_pitch * (h - 1) - extend_left;
|
|
dst_ptr1 = dst + dst_pitch * (-extend_top) - extend_left;
|
|
dst_ptr2 = dst + dst_pitch * (h)-extend_left;
|
|
linesize = extend_left + extend_right + w;
|
|
assert(linesize <= dst_pitch);
|
|
|
|
for (i = 0; i < extend_top; i++) {
|
|
memcpy(dst_ptr1, src_ptr1, linesize * sizeof(src_ptr1[0]));
|
|
dst_ptr1 += dst_pitch;
|
|
}
|
|
|
|
for (i = 0; i < extend_bottom; i++) {
|
|
memcpy(dst_ptr2, src_ptr2, linesize * sizeof(src_ptr2[0]));
|
|
dst_ptr2 += dst_pitch;
|
|
}
|
|
}
|
|
|
|
void av1_copy_and_extend_frame(const YV12_BUFFER_CONFIG *src,
|
|
YV12_BUFFER_CONFIG *dst) {
|
|
// Extend src frame in buffer
|
|
const int et_y = dst->border;
|
|
const int el_y = dst->border;
|
|
const int er_y =
|
|
AOMMAX(src->y_width + dst->border, ALIGN_POWER_OF_TWO(src->y_width, 6)) -
|
|
src->y_crop_width;
|
|
const int eb_y = AOMMAX(src->y_height + dst->border,
|
|
ALIGN_POWER_OF_TWO(src->y_height, 6)) -
|
|
src->y_crop_height;
|
|
const int uv_width_subsampling = src->subsampling_x;
|
|
const int uv_height_subsampling = src->subsampling_y;
|
|
const int et_uv = et_y >> uv_height_subsampling;
|
|
const int el_uv = el_y >> uv_width_subsampling;
|
|
const int eb_uv = eb_y >> uv_height_subsampling;
|
|
const int er_uv = er_y >> uv_width_subsampling;
|
|
|
|
if (src->flags & YV12_FLAG_HIGHBITDEPTH) {
|
|
highbd_copy_and_extend_plane(src->y_buffer, src->y_stride, dst->y_buffer,
|
|
dst->y_stride, src->y_crop_width,
|
|
src->y_crop_height, et_y, el_y, eb_y, er_y);
|
|
if (!src->monochrome) {
|
|
highbd_copy_and_extend_plane(
|
|
src->u_buffer, src->uv_stride, dst->u_buffer, dst->uv_stride,
|
|
src->uv_crop_width, src->uv_crop_height, et_uv, el_uv, eb_uv, er_uv);
|
|
highbd_copy_and_extend_plane(
|
|
src->v_buffer, src->uv_stride, dst->v_buffer, dst->uv_stride,
|
|
src->uv_crop_width, src->uv_crop_height, et_uv, el_uv, eb_uv, er_uv);
|
|
}
|
|
return;
|
|
}
|
|
|
|
copy_and_extend_plane(src->y_buffer, src->y_stride, dst->y_buffer,
|
|
dst->y_stride, src->y_crop_width, src->y_crop_height,
|
|
et_y, el_y, eb_y, er_y, 1);
|
|
if (!src->monochrome) {
|
|
// detect nv12 format
|
|
const int chroma_step = src->v_buffer ? 1 : 2;
|
|
const uint8_t *src_v_buffer =
|
|
src->v_buffer ? src->v_buffer : src->u_buffer + 1;
|
|
copy_and_extend_plane(src->u_buffer, src->uv_stride, dst->u_buffer,
|
|
dst->uv_stride, src->uv_crop_width,
|
|
src->uv_crop_height, et_uv, el_uv, eb_uv, er_uv,
|
|
chroma_step);
|
|
copy_and_extend_plane(src_v_buffer, src->uv_stride, dst->v_buffer,
|
|
dst->uv_stride, src->uv_crop_width,
|
|
src->uv_crop_height, et_uv, el_uv, eb_uv, er_uv,
|
|
chroma_step);
|
|
}
|
|
}
|