staticvoid 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;
// 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;
}
}
staticvoid 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_crop_width + dst->border,
ALIGN_POWER_OF_TWO(src->y_crop_width, 6)) -
src->y_crop_width; const int eb_y = AOMMAX(src->y_crop_height + dst->border,
ALIGN_POWER_OF_TWO(src->y_crop_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;
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