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Add calculation of SAO-offsets for non-LCU sized CUs. Luma SAO works now.

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Ari Koivula 2013-11-11 09:30:12 +02:00
parent 692ef3e9d9
commit 84cd618daf
1 changed files with 16 additions and 10 deletions
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26
src/sao.c
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@ -35,7 +35,7 @@ static const unsigned g_sao_eo_idx_to_eo_category[] = { 1, 2, 0, 3, 4 };
* \param is_chroma 0 for luma, 1 for chroma. Indicates
*/
void calc_sao_edge_dir(const pixel *orig_data, const pixel *rec_data,
int eo_class, int block_width,
int eo_class, int block_width, int block_height,
int cat_sum_cnt[2][NUM_SAO_EDGE_CATEGORIES])
{
int y, x;
@ -45,7 +45,7 @@ void calc_sao_edge_dir(const pixel *orig_data, const pixel *rec_data,
// Don't sample the edge pixels because this function doesn't have access to
// their neighbours.
for (y = 1; y < block_width - 1; ++y) {
for (y = 1; y < block_height - 1; ++y) {
for (x = 1; x < block_width - 1; ++x) {
const pixel *c_data = &rec_data[y * block_width + x];
pixel a = c_data[a_ofs.y * block_width + a_ofs.x];
@ -216,7 +216,8 @@ void sao_reconstruct(picture *pic, pixel *new_y_data, unsigned x_ctb, unsigned y
void sao_search_best_mode(const pixel *data, const pixel *recdata,
unsigned block_width, unsigned buf_size, unsigned buf_cnt,
int block_width, int block_height,
unsigned buf_size, unsigned buf_cnt,
sao_info *sao_out)
{
sao_eo_class edge_class;
@ -234,7 +235,8 @@ void sao_search_best_mode(const pixel *data, const pixel *recdata,
// Call calc_sao_edge_dir once for luma and twice for chroma.
for (i = 0; i < buf_cnt; ++i) {
calc_sao_edge_dir(data + i * buf_size, recdata + i * buf_size, edge_class, block_width, cat_sum_cnt);
calc_sao_edge_dir(data + i * buf_size, recdata + i * buf_size, edge_class,
block_width, block_height, cat_sum_cnt);
}
for (edge_cat = SAO_EO_CAT1; edge_cat <= SAO_EO_CAT4; ++edge_cat) {
@ -295,10 +297,14 @@ void sao_search_luma(const picture *pic, unsigned x_ctb, unsigned y_ctb, sao_inf
pixel rec_y[LCU_LUMA_SIZE];
pixel *y_data = &pic->y_data[CU_TO_PIXEL(x_ctb, y_ctb, 0, pic->width)];
pixel *y_recdata = &pic->y_recdata[CU_TO_PIXEL(x_ctb, y_ctb, 0, pic->width)];
int block_width = LCU_WIDTH;
int block_height = LCU_WIDTH;
// TODO: Fix searching of SAO in <LCU blocks. (reconstruction works)
if (x_ctb == pic->width_in_lcu - 1 || y_ctb == pic->height_in_lcu - 1) {
return;
if (x_ctb * LCU_WIDTH + LCU_WIDTH >= (unsigned)pic->width) {
block_width = pic->width - x_ctb * LCU_WIDTH;
}
if (y_ctb * LCU_WIDTH + LCU_WIDTH >= (unsigned)pic->height) {
block_height = pic->height - y_ctb * LCU_WIDTH;
}
/*sao->offsets[SAO_EO_CAT0] = 0;
@ -313,8 +319,8 @@ void sao_search_luma(const picture *pic, unsigned x_ctb, unsigned y_ctb, sao_inf
sao->type = SAO_TYPE_EDGE;
// Fill temporary buffers with picture data.
picture_blit_pixels(y_data, orig_y, LCU_WIDTH, LCU_WIDTH, pic->width, LCU_WIDTH);
picture_blit_pixels(y_recdata, rec_y, LCU_WIDTH, LCU_WIDTH, pic->width, LCU_WIDTH);
picture_blit_pixels(y_data, orig_y, block_width, block_height, pic->width, LCU_WIDTH);
picture_blit_pixels(y_recdata, rec_y, block_width, block_height, pic->width, LCU_WIDTH);
sao_search_best_mode(orig_y, rec_y, LCU_WIDTH, LCU_LUMA_SIZE, 1, sao);
sao_search_best_mode(orig_y, rec_y, block_width, block_height, LCU_LUMA_SIZE, 1, sao);
}