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https://github.com/ultravideo/uvg266.git
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[alf] Initial generic strategies for 5x5 and 7x7 filtering
This commit is contained in:
Marko Viitanen
parent
c3c96d69c2
commit
dc6a29b0d8
414
src/alf.c
414
src/alf.c
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@ -5339,412 +5339,6 @@ static void alf_encoder_ctb(encoder_state_t * const state,
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}
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}
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static void alf_filter_block(encoder_state_t * const state,
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const kvz_pixel *src_pixels,
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kvz_pixel *dst_pixels,
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const int src_stride,
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const int dst_stride,
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const short* filter_set,
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const int16_t *fClipSet,
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clp_rng clp_rng,
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alf_component_id component_id,
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const int width,
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const int height,
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int x_pos,
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int y_pos,
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int blk_dst_x,
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int blk_dst_y,
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int vb_pos,
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const int vb_ctu_height)
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{
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alf_filter_type const filter_type = component_id == COMPONENT_Y ? ALF_FILTER_7X7 : ALF_FILTER_5X5;
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const bool chroma = component_id == COMPONENT_Y ? 0 : 1;
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const int8_t bit_depth = state->encoder_control->bitdepth;
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if (chroma)
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{
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assert((int)filter_type == 0); //Chroma needs to have filtType == 0
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}
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const int start_height = y_pos;
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const int end_height = start_height + height;
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const int start_width = x_pos;
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const int end_width = start_width + width;
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const kvz_pixel *src = src_pixels;
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kvz_pixel *dst = dst_pixels + blk_dst_y * dst_stride;
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const kvz_pixel *p_img_y_pad_0, *p_img_y_pad_1, *p_img_y_pad_2, *p_img_y_pad_3, *p_img_y_pad_4, *p_img_y_pad_5, *p_img_y_pad_6;
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const kvz_pixel *p_img_0, *p_img_1, *p_img_2, *p_img_3, *p_img_4, *p_img_5, *p_img_6;
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const short *coef = filter_set;
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const int16_t *clip = fClipSet;
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const int shift = bit_depth - 1;
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const int offset = 1 << (shift - 1);
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int transpose_idx = 0;
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const int cls_size_y = 4;
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const int cls_size_x = 4;
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assert((start_height % cls_size_y) == 0); //Wrong startHeight in filtering
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assert((start_width % cls_size_x) == 0); //Wrong startWidth in filtering
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assert(((end_height - start_height) % cls_size_y) == 0); //Wrong endHeight in filtering
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assert(((end_width - start_width) % cls_size_x) == 0); //Wrong endWidth in filtering
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alf_classifier *p_class = NULL;
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int dst_stride2 = dst_stride * cls_size_y;
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int src_stride2 = src_stride * cls_size_y;
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//std::vector<Pel> filter_coeff(MAX_NUM_ALF_LUMA_COEFF);
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int filter_coeff[MAX_NUM_ALF_LUMA_COEFF];
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memset(filter_coeff, 0, MAX_NUM_ALF_LUMA_COEFF * sizeof(int));
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//std::array<int, MAX_NUM_ALF_LUMA_COEFF> filterClipp;
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int filter_clipp[MAX_NUM_ALF_LUMA_COEFF];
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memset(filter_clipp, 0, MAX_NUM_ALF_LUMA_COEFF * sizeof(int));
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p_img_y_pad_0 = src + start_height * src_stride + start_width;
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p_img_y_pad_1 = p_img_y_pad_0 + src_stride;
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p_img_y_pad_2 = p_img_y_pad_0 - src_stride;
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p_img_y_pad_3 = p_img_y_pad_1 + src_stride;
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p_img_y_pad_4 = p_img_y_pad_2 - src_stride;
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p_img_y_pad_5 = p_img_y_pad_3 + src_stride;
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p_img_y_pad_6 = p_img_y_pad_4 - src_stride;
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kvz_pixel* p_rec_0 = dst + blk_dst_x;//start_width;
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kvz_pixel* p_rec_1 = p_rec_0 + dst_stride;
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for (int i = 0; i < end_height - start_height; i += cls_size_y)
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{
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if (!chroma)
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{
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p_class = state->tile->frame->alf_info->classifier[blk_dst_y + i] + blk_dst_x;
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}
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for (int j = 0; j < end_width - start_width; j += cls_size_x)
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{
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if (!chroma)
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{
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alf_classifier cl = p_class[j];
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transpose_idx = cl.transpose_idx;
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coef = filter_set + cl.class_idx * MAX_NUM_ALF_LUMA_COEFF;
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clip = fClipSet + cl.class_idx * MAX_NUM_ALF_LUMA_COEFF;
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}
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if (filter_type == ALF_FILTER_7X7)
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{
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if (transpose_idx == 1)
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{
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filter_coeff[0] = coef[9];
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filter_coeff[1] = coef[4];
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filter_coeff[2] = coef[10];
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filter_coeff[3] = coef[8];
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filter_coeff[4] = coef[1];
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filter_coeff[5] = coef[5];
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filter_coeff[6] = coef[11];
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filter_coeff[7] = coef[7];
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filter_coeff[8] = coef[3];
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filter_coeff[9] = coef[0];
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filter_coeff[10] = coef[2];
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filter_coeff[11] = coef[6];
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filter_coeff[12] = coef[12];
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filter_clipp[0] = clip[9];
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filter_clipp[1] = clip[4];
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filter_clipp[2] = clip[10];
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filter_clipp[3] = clip[8];
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filter_clipp[4] = clip[1];
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filter_clipp[5] = clip[5];
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filter_clipp[6] = clip[11];
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filter_clipp[7] = clip[7];
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filter_clipp[8] = clip[3];
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filter_clipp[9] = clip[0];
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filter_clipp[10] = clip[2];
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filter_clipp[11] = clip[6];
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filter_clipp[12] = clip[12];
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}
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else if (transpose_idx == 2)
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{
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filter_coeff[0] = coef[0];
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filter_coeff[1] = coef[3];
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filter_coeff[2] = coef[2];
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filter_coeff[3] = coef[1];
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filter_coeff[4] = coef[8];
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filter_coeff[5] = coef[7];
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filter_coeff[6] = coef[6];
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filter_coeff[7] = coef[5];
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filter_coeff[8] = coef[4];
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filter_coeff[9] = coef[9];
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filter_coeff[10] = coef[10];
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filter_coeff[11] = coef[11];
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filter_coeff[12] = coef[12];
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filter_clipp[0] = clip[0];
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filter_clipp[1] = clip[3];
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filter_clipp[2] = clip[2];
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filter_clipp[3] = clip[1];
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filter_clipp[4] = clip[8];
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filter_clipp[5] = clip[7];
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filter_clipp[6] = clip[6];
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filter_clipp[7] = clip[5];
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filter_clipp[8] = clip[4];
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filter_clipp[9] = clip[9];
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filter_clipp[10] = clip[10];
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filter_clipp[11] = clip[11];
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filter_clipp[12] = clip[12];
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}
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else if (transpose_idx == 3)
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{
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filter_coeff[0] = coef[9];
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filter_coeff[1] = coef[8];
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filter_coeff[2] = coef[10];
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filter_coeff[3] = coef[4];
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filter_coeff[4] = coef[3];
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filter_coeff[5] = coef[7];
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filter_coeff[6] = coef[11];
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filter_coeff[7] = coef[5];
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filter_coeff[8] = coef[1];
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filter_coeff[9] = coef[0];
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filter_coeff[10] = coef[2];
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filter_coeff[11] = coef[6];
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filter_coeff[12] = coef[12];
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filter_clipp[0] = clip[9];
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filter_clipp[1] = clip[8];
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filter_clipp[2] = clip[10];
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filter_clipp[3] = clip[4];
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filter_clipp[4] = clip[3];
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filter_clipp[5] = clip[7];
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filter_clipp[6] = clip[11];
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filter_clipp[7] = clip[5];
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filter_clipp[8] = clip[1];
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filter_clipp[9] = clip[0];
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filter_clipp[10] = clip[2];
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filter_clipp[11] = clip[6];
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filter_clipp[12] = clip[12];
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}
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else
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{
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filter_coeff[0] = coef[0];
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filter_coeff[1] = coef[1];
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filter_coeff[2] = coef[2];
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filter_coeff[3] = coef[3];
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filter_coeff[4] = coef[4];
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filter_coeff[5] = coef[5];
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filter_coeff[6] = coef[6];
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filter_coeff[7] = coef[7];
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filter_coeff[8] = coef[8];
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filter_coeff[9] = coef[9];
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filter_coeff[10] = coef[10];
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filter_coeff[11] = coef[11];
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filter_coeff[12] = coef[12];
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filter_clipp[0] = clip[0];
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filter_clipp[1] = clip[1];
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filter_clipp[2] = clip[2];
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filter_clipp[3] = clip[3];
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filter_clipp[4] = clip[4];
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filter_clipp[5] = clip[5];
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filter_clipp[6] = clip[6];
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filter_clipp[7] = clip[7];
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filter_clipp[8] = clip[8];
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filter_clipp[9] = clip[9];
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filter_clipp[10] = clip[10];
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filter_clipp[11] = clip[11];
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filter_clipp[12] = clip[12];
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}
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}
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else
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{
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if (transpose_idx == 1)
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{
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filter_coeff[0] = coef[4];
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filter_coeff[1] = coef[1];
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filter_coeff[2] = coef[5];
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filter_coeff[3] = coef[3];
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filter_coeff[4] = coef[0];
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filter_coeff[5] = coef[2];
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filter_coeff[6] = coef[6];
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filter_clipp[0] = clip[4];
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filter_clipp[1] = clip[1];
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filter_clipp[2] = clip[5];
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filter_clipp[3] = clip[3];
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filter_clipp[4] = clip[0];
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filter_clipp[5] = clip[2];
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filter_clipp[6] = clip[6];
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}
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else if (transpose_idx == 2)
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{
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filter_coeff[0] = coef[0];
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filter_coeff[1] = coef[3];
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filter_coeff[2] = coef[2];
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filter_coeff[3] = coef[1];
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filter_coeff[4] = coef[4];
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filter_coeff[5] = coef[5];
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filter_coeff[6] = coef[6];
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filter_clipp[0] = clip[0];
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filter_clipp[1] = clip[3];
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filter_clipp[2] = clip[2];
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filter_clipp[3] = clip[1];
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filter_clipp[4] = clip[4];
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filter_clipp[5] = clip[5];
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filter_clipp[6] = clip[6];
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}
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else if (transpose_idx == 3)
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{
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filter_coeff[0] = coef[4];
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filter_coeff[1] = coef[3];
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filter_coeff[2] = coef[5];
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filter_coeff[3] = coef[1];
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filter_coeff[4] = coef[0];
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filter_coeff[5] = coef[2];
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filter_coeff[6] = coef[6];
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filter_clipp[0] = clip[4];
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filter_clipp[1] = clip[3];
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filter_clipp[2] = clip[5];
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filter_clipp[3] = clip[1];
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filter_clipp[4] = clip[0];
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filter_clipp[5] = clip[2];
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filter_clipp[6] = clip[6];
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}
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else
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{
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filter_coeff[0] = coef[0];
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filter_coeff[1] = coef[1];
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filter_coeff[2] = coef[2];
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filter_coeff[3] = coef[3];
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filter_coeff[4] = coef[4];
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filter_coeff[5] = coef[5];
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filter_coeff[6] = coef[6];
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filter_clipp[0] = clip[0];
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filter_clipp[1] = clip[1];
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filter_clipp[2] = clip[2];
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filter_clipp[3] = clip[3];
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filter_clipp[4] = clip[4];
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filter_clipp[5] = clip[5];
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filter_clipp[6] = clip[6];
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}
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}
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for (int ii = 0; ii < cls_size_y; ii++)
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{
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p_img_0 = p_img_y_pad_0 + j + ii * src_stride;
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p_img_1 = p_img_y_pad_1 + j + ii * src_stride;
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p_img_2 = p_img_y_pad_2 + j + ii * src_stride;
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p_img_3 = p_img_y_pad_3 + j + ii * src_stride;
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p_img_4 = p_img_y_pad_4 + j + ii * src_stride;
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p_img_5 = p_img_y_pad_5 + j + ii * src_stride;
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p_img_6 = p_img_y_pad_6 + j + ii * src_stride;
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p_rec_1 = p_rec_0 + j + ii * dst_stride;
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const int y_vb = (blk_dst_y + i + ii) & (vb_ctu_height - 1);
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if (y_vb < vb_pos && (y_vb >= vb_pos - (chroma ? 2 : 4))) // above
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{
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p_img_1 = (y_vb == vb_pos - 1) ? p_img_0 : p_img_1;
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p_img_3 = (y_vb >= vb_pos - 2) ? p_img_1 : p_img_3;
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p_img_5 = (y_vb >= vb_pos - 3) ? p_img_3 : p_img_5;
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p_img_2 = (y_vb == vb_pos - 1) ? p_img_0 : p_img_2;
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p_img_4 = (y_vb >= vb_pos - 2) ? p_img_2 : p_img_4;
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p_img_6 = (y_vb >= vb_pos - 3) ? p_img_4 : p_img_6;
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}
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else if (y_vb >= vb_pos && (y_vb <= vb_pos + (chroma ? 1 : 3))) // bottom
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{
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p_img_2 = (y_vb == vb_pos) ? p_img_0 : p_img_2;
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p_img_4 = (y_vb <= vb_pos + 1) ? p_img_2 : p_img_4;
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p_img_6 = (y_vb <= vb_pos + 2) ? p_img_4 : p_img_6;
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p_img_1 = (y_vb == vb_pos) ? p_img_0 : p_img_1;
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p_img_3 = (y_vb <= vb_pos + 1) ? p_img_1 : p_img_3;
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p_img_5 = (y_vb <= vb_pos + 2) ? p_img_3 : p_img_5;
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}
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bool is_near_vb_above = y_vb < vb_pos && (y_vb >= vb_pos - 1);
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bool is_near_vb_below = y_vb >= vb_pos && (y_vb <= vb_pos);
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for (int jj = 0; jj < cls_size_x; jj++)
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{
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int sum = 0;
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const kvz_pixel curr = p_img_0[+0];
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if (filter_type == ALF_FILTER_7X7)
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{
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sum += filter_coeff[0] * (clip_alf(filter_clipp[0], curr, p_img_5[+0], p_img_6[+0]));
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sum += filter_coeff[1] * (clip_alf(filter_clipp[1], curr, p_img_3[+1], p_img_4[-1]));
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sum += filter_coeff[2] * (clip_alf(filter_clipp[2], curr, p_img_3[+0], p_img_4[+0]));
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sum += filter_coeff[3] * (clip_alf(filter_clipp[3], curr, p_img_3[-1], p_img_4[+1]));
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sum += filter_coeff[4] * (clip_alf(filter_clipp[4], curr, p_img_1[+2], p_img_2[-2]));
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sum += filter_coeff[5] * (clip_alf(filter_clipp[5], curr, p_img_1[+1], p_img_2[-1]));
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sum += filter_coeff[6] * (clip_alf(filter_clipp[6], curr, p_img_1[+0], p_img_2[+0]));
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sum += filter_coeff[7] * (clip_alf(filter_clipp[7], curr, p_img_1[-1], p_img_2[+1]));
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sum += filter_coeff[8] * (clip_alf(filter_clipp[8], curr, p_img_1[-2], p_img_2[+2]));
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sum += filter_coeff[9] * (clip_alf(filter_clipp[9], curr, p_img_0[+3], p_img_0[-3]));
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sum += filter_coeff[10] * (clip_alf(filter_clipp[10], curr, p_img_0[+2], p_img_0[-2]));
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sum += filter_coeff[11] * (clip_alf(filter_clipp[11], curr, p_img_0[+1], p_img_0[-1]));
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}
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else
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{
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sum += filter_coeff[0] * (clip_alf(filter_clipp[0], curr, p_img_3[+0], p_img_4[+0]));
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sum += filter_coeff[1] * (clip_alf(filter_clipp[1], curr, p_img_1[+1], p_img_2[-1]));
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sum += filter_coeff[2] * (clip_alf(filter_clipp[2], curr, p_img_1[+0], p_img_2[+0]));
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sum += filter_coeff[3] * (clip_alf(filter_clipp[3], curr, p_img_1[-1], p_img_2[+1]));
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|
||||
sum += filter_coeff[4] * (clip_alf(filter_clipp[4], curr, p_img_0[+2], p_img_0[-2]));
|
||||
sum += filter_coeff[5] * (clip_alf(filter_clipp[5], curr, p_img_0[+1], p_img_0[-1]));
|
||||
}
|
||||
|
||||
if (!(is_near_vb_above || is_near_vb_below))
|
||||
{
|
||||
sum = (sum + offset) >> shift;
|
||||
}
|
||||
else
|
||||
{
|
||||
sum = (sum + (1 << ((shift + 3) - 1))) >> (shift + 3);
|
||||
}
|
||||
sum += curr;
|
||||
|
||||
p_rec_1[jj] = kvz_fast_clip_32bit_to_pixel(sum);
|
||||
|
||||
p_img_0++;
|
||||
p_img_1++;
|
||||
p_img_2++;
|
||||
p_img_3++;
|
||||
p_img_4++;
|
||||
p_img_5++;
|
||||
p_img_6++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
p_rec_0 += dst_stride2;
|
||||
p_rec_1 += dst_stride2;
|
||||
|
||||
p_img_y_pad_0 += src_stride2;
|
||||
p_img_y_pad_1 += src_stride2;
|
||||
p_img_y_pad_2 += src_stride2;
|
||||
p_img_y_pad_3 += src_stride2;
|
||||
p_img_y_pad_4 += src_stride2;
|
||||
p_img_y_pad_5 += src_stride2;
|
||||
p_img_y_pad_6 += src_stride2;
|
||||
}
|
||||
}
|
||||
|
||||
static void alf_reconstruct(encoder_state_t * const state,
|
||||
array_variables *arr_vars)
|
||||
|
|
@ -5819,10 +5413,10 @@ static void alf_reconstruct(encoder_state_t * const state,
|
|||
coeff = arr_vars->fixed_filter_set_coeff_dec[filter_set_index];
|
||||
clip = arr_vars->clip_default;
|
||||
}
|
||||
alf_filter_block(state,
|
||||
kvz_alf_filter_7x7_blk(state,
|
||||
alf_info->alf_tmp_y, state->tile->frame->rec->y,
|
||||
luma_stride, luma_stride,
|
||||
coeff, clip, arr_vars->clp_rngs.comp[COMPONENT_Y], COMPONENT_Y,
|
||||
coeff, clip, arr_vars->clp_rngs.comp[COMPONENT_Y],
|
||||
width, height, x_pos, y_pos, x_pos, y_pos,
|
||||
alf_vb_luma_pos, alf_vb_luma_ctu_height);
|
||||
}
|
||||
|
|
@ -5836,10 +5430,10 @@ static void alf_reconstruct(encoder_state_t * const state,
|
|||
const kvz_pixel *src_pixels = comp_id - 1 ? alf_info->alf_tmp_v : alf_info->alf_tmp_u;
|
||||
|
||||
const int alt_num = alf_info->ctu_alternative[comp_id][ctu_idx];
|
||||
alf_filter_block(state,
|
||||
kvz_alf_filter_5x5_blk(state,
|
||||
src_pixels, dst_pixels,
|
||||
chroma_stride, chroma_stride,
|
||||
arr_vars->chroma_coeff_final[alt_num], arr_vars->chroma_clipp_final[alt_num], arr_vars->clp_rngs.comp[comp_idx], comp_idx,
|
||||
arr_vars->chroma_coeff_final[alt_num], arr_vars->chroma_clipp_final[alt_num], arr_vars->clp_rngs.comp[comp_idx],
|
||||
width >> chroma_scale_x, height >> chroma_scale_y,
|
||||
x_pos >> chroma_scale_x, y_pos >> chroma_scale_y,
|
||||
x_pos >> chroma_scale_x, y_pos >> chroma_scale_y,
|
||||
|
|
|
|||
|
|
@ -27,6 +27,12 @@
|
|||
#include "alf.h"
|
||||
#include "strategyselector.h"
|
||||
|
||||
extern kvz_pixel kvz_fast_clip_32bit_to_pixel(int32_t value);
|
||||
|
||||
static int16_t clip_alf(const int16_t clip, const int16_t ref, const int16_t val0, const int16_t val1)
|
||||
{
|
||||
return CLIP(-clip, +clip, val0 - ref) + CLIP(-clip, +clip, val1 - ref);
|
||||
}
|
||||
|
||||
static void alf_derive_classification_blk_generic(encoder_state_t * const state,
|
||||
const int shift,
|
||||
|
|
@ -269,13 +275,462 @@ static void alf_derive_classification_blk_generic(encoder_state_t * const state,
|
|||
}
|
||||
}
|
||||
|
||||
static void alf_filter_block_generic(encoder_state_t* const state,
|
||||
const kvz_pixel* src_pixels,
|
||||
kvz_pixel* dst_pixels,
|
||||
const int src_stride,
|
||||
const int dst_stride,
|
||||
const short* filter_set,
|
||||
const int16_t* fClipSet,
|
||||
clp_rng clp_rng,
|
||||
alf_component_id component_id,
|
||||
const int width,
|
||||
const int height,
|
||||
int x_pos,
|
||||
int y_pos,
|
||||
int blk_dst_x,
|
||||
int blk_dst_y,
|
||||
int vb_pos,
|
||||
const int vb_ctu_height)
|
||||
{
|
||||
alf_filter_type const filter_type = component_id == COMPONENT_Y ? ALF_FILTER_7X7 : ALF_FILTER_5X5;
|
||||
const bool chroma = component_id == COMPONENT_Y ? 0 : 1;
|
||||
const int8_t bit_depth = state->encoder_control->bitdepth;
|
||||
|
||||
if (chroma)
|
||||
{
|
||||
assert((int)filter_type == 0); //Chroma needs to have filtType == 0
|
||||
}
|
||||
|
||||
const int start_height = y_pos;
|
||||
const int end_height = start_height + height;
|
||||
const int start_width = x_pos;
|
||||
const int end_width = start_width + width;
|
||||
|
||||
const kvz_pixel* src = src_pixels;
|
||||
kvz_pixel* dst = dst_pixels + blk_dst_y * dst_stride;
|
||||
|
||||
const kvz_pixel* p_img_y_pad_0, * p_img_y_pad_1, * p_img_y_pad_2, * p_img_y_pad_3, * p_img_y_pad_4, * p_img_y_pad_5, * p_img_y_pad_6;
|
||||
const kvz_pixel* p_img_0, * p_img_1, * p_img_2, * p_img_3, * p_img_4, * p_img_5, * p_img_6;
|
||||
|
||||
const short* coef = filter_set;
|
||||
const int16_t* clip = fClipSet;
|
||||
|
||||
const int shift = bit_depth - 1;
|
||||
|
||||
const int offset = 1 << (shift - 1);
|
||||
|
||||
int transpose_idx = 0;
|
||||
const int cls_size_y = 4;
|
||||
const int cls_size_x = 4;
|
||||
|
||||
assert((start_height % cls_size_y) == 0); //Wrong startHeight in filtering
|
||||
assert((start_width % cls_size_x) == 0); //Wrong startWidth in filtering
|
||||
assert(((end_height - start_height) % cls_size_y) == 0); //Wrong endHeight in filtering
|
||||
assert(((end_width - start_width) % cls_size_x) == 0); //Wrong endWidth in filtering
|
||||
|
||||
alf_classifier* p_class = NULL;
|
||||
|
||||
int dst_stride2 = dst_stride * cls_size_y;
|
||||
int src_stride2 = src_stride * cls_size_y;
|
||||
|
||||
//std::vector<Pel> filter_coeff(MAX_NUM_ALF_LUMA_COEFF);
|
||||
int filter_coeff[MAX_NUM_ALF_LUMA_COEFF];
|
||||
memset(filter_coeff, 0, MAX_NUM_ALF_LUMA_COEFF * sizeof(int));
|
||||
//std::array<int, MAX_NUM_ALF_LUMA_COEFF> filterClipp;
|
||||
int filter_clipp[MAX_NUM_ALF_LUMA_COEFF];
|
||||
memset(filter_clipp, 0, MAX_NUM_ALF_LUMA_COEFF * sizeof(int));
|
||||
|
||||
p_img_y_pad_0 = src + start_height * src_stride + start_width;
|
||||
p_img_y_pad_1 = p_img_y_pad_0 + src_stride;
|
||||
p_img_y_pad_2 = p_img_y_pad_0 - src_stride;
|
||||
p_img_y_pad_3 = p_img_y_pad_1 + src_stride;
|
||||
p_img_y_pad_4 = p_img_y_pad_2 - src_stride;
|
||||
p_img_y_pad_5 = p_img_y_pad_3 + src_stride;
|
||||
p_img_y_pad_6 = p_img_y_pad_4 - src_stride;
|
||||
|
||||
kvz_pixel* p_rec_0 = dst + blk_dst_x;//start_width;
|
||||
kvz_pixel* p_rec_1 = p_rec_0 + dst_stride;
|
||||
|
||||
for (int i = 0; i < end_height - start_height; i += cls_size_y)
|
||||
{
|
||||
if (!chroma)
|
||||
{
|
||||
p_class = state->tile->frame->alf_info->classifier[blk_dst_y + i] + blk_dst_x;
|
||||
}
|
||||
|
||||
for (int j = 0; j < end_width - start_width; j += cls_size_x)
|
||||
{
|
||||
if (!chroma)
|
||||
{
|
||||
alf_classifier cl = p_class[j];
|
||||
transpose_idx = cl.transpose_idx;
|
||||
coef = filter_set + cl.class_idx * MAX_NUM_ALF_LUMA_COEFF;
|
||||
clip = fClipSet + cl.class_idx * MAX_NUM_ALF_LUMA_COEFF;
|
||||
}
|
||||
|
||||
if (filter_type == ALF_FILTER_7X7)
|
||||
{
|
||||
if (transpose_idx == 1)
|
||||
{
|
||||
filter_coeff[0] = coef[9];
|
||||
filter_coeff[1] = coef[4];
|
||||
filter_coeff[2] = coef[10];
|
||||
filter_coeff[3] = coef[8];
|
||||
filter_coeff[4] = coef[1];
|
||||
filter_coeff[5] = coef[5];
|
||||
filter_coeff[6] = coef[11];
|
||||
filter_coeff[7] = coef[7];
|
||||
filter_coeff[8] = coef[3];
|
||||
filter_coeff[9] = coef[0];
|
||||
filter_coeff[10] = coef[2];
|
||||
filter_coeff[11] = coef[6];
|
||||
filter_coeff[12] = coef[12];
|
||||
|
||||
filter_clipp[0] = clip[9];
|
||||
filter_clipp[1] = clip[4];
|
||||
filter_clipp[2] = clip[10];
|
||||
filter_clipp[3] = clip[8];
|
||||
filter_clipp[4] = clip[1];
|
||||
filter_clipp[5] = clip[5];
|
||||
filter_clipp[6] = clip[11];
|
||||
filter_clipp[7] = clip[7];
|
||||
filter_clipp[8] = clip[3];
|
||||
filter_clipp[9] = clip[0];
|
||||
filter_clipp[10] = clip[2];
|
||||
filter_clipp[11] = clip[6];
|
||||
filter_clipp[12] = clip[12];
|
||||
}
|
||||
else if (transpose_idx == 2)
|
||||
{
|
||||
filter_coeff[0] = coef[0];
|
||||
filter_coeff[1] = coef[3];
|
||||
filter_coeff[2] = coef[2];
|
||||
filter_coeff[3] = coef[1];
|
||||
filter_coeff[4] = coef[8];
|
||||
filter_coeff[5] = coef[7];
|
||||
filter_coeff[6] = coef[6];
|
||||
filter_coeff[7] = coef[5];
|
||||
filter_coeff[8] = coef[4];
|
||||
filter_coeff[9] = coef[9];
|
||||
filter_coeff[10] = coef[10];
|
||||
filter_coeff[11] = coef[11];
|
||||
filter_coeff[12] = coef[12];
|
||||
|
||||
filter_clipp[0] = clip[0];
|
||||
filter_clipp[1] = clip[3];
|
||||
filter_clipp[2] = clip[2];
|
||||
filter_clipp[3] = clip[1];
|
||||
filter_clipp[4] = clip[8];
|
||||
filter_clipp[5] = clip[7];
|
||||
filter_clipp[6] = clip[6];
|
||||
filter_clipp[7] = clip[5];
|
||||
filter_clipp[8] = clip[4];
|
||||
filter_clipp[9] = clip[9];
|
||||
filter_clipp[10] = clip[10];
|
||||
filter_clipp[11] = clip[11];
|
||||
filter_clipp[12] = clip[12];
|
||||
|
||||
}
|
||||
else if (transpose_idx == 3)
|
||||
{
|
||||
filter_coeff[0] = coef[9];
|
||||
filter_coeff[1] = coef[8];
|
||||
filter_coeff[2] = coef[10];
|
||||
filter_coeff[3] = coef[4];
|
||||
filter_coeff[4] = coef[3];
|
||||
filter_coeff[5] = coef[7];
|
||||
filter_coeff[6] = coef[11];
|
||||
filter_coeff[7] = coef[5];
|
||||
filter_coeff[8] = coef[1];
|
||||
filter_coeff[9] = coef[0];
|
||||
filter_coeff[10] = coef[2];
|
||||
filter_coeff[11] = coef[6];
|
||||
filter_coeff[12] = coef[12];
|
||||
|
||||
filter_clipp[0] = clip[9];
|
||||
filter_clipp[1] = clip[8];
|
||||
filter_clipp[2] = clip[10];
|
||||
filter_clipp[3] = clip[4];
|
||||
filter_clipp[4] = clip[3];
|
||||
filter_clipp[5] = clip[7];
|
||||
filter_clipp[6] = clip[11];
|
||||
filter_clipp[7] = clip[5];
|
||||
filter_clipp[8] = clip[1];
|
||||
filter_clipp[9] = clip[0];
|
||||
filter_clipp[10] = clip[2];
|
||||
filter_clipp[11] = clip[6];
|
||||
filter_clipp[12] = clip[12];
|
||||
}
|
||||
else
|
||||
{
|
||||
filter_coeff[0] = coef[0];
|
||||
filter_coeff[1] = coef[1];
|
||||
filter_coeff[2] = coef[2];
|
||||
filter_coeff[3] = coef[3];
|
||||
filter_coeff[4] = coef[4];
|
||||
filter_coeff[5] = coef[5];
|
||||
filter_coeff[6] = coef[6];
|
||||
filter_coeff[7] = coef[7];
|
||||
filter_coeff[8] = coef[8];
|
||||
filter_coeff[9] = coef[9];
|
||||
filter_coeff[10] = coef[10];
|
||||
filter_coeff[11] = coef[11];
|
||||
filter_coeff[12] = coef[12];
|
||||
|
||||
filter_clipp[0] = clip[0];
|
||||
filter_clipp[1] = clip[1];
|
||||
filter_clipp[2] = clip[2];
|
||||
filter_clipp[3] = clip[3];
|
||||
filter_clipp[4] = clip[4];
|
||||
filter_clipp[5] = clip[5];
|
||||
filter_clipp[6] = clip[6];
|
||||
filter_clipp[7] = clip[7];
|
||||
filter_clipp[8] = clip[8];
|
||||
filter_clipp[9] = clip[9];
|
||||
filter_clipp[10] = clip[10];
|
||||
filter_clipp[11] = clip[11];
|
||||
filter_clipp[12] = clip[12];
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
if (transpose_idx == 1)
|
||||
{
|
||||
filter_coeff[0] = coef[4];
|
||||
filter_coeff[1] = coef[1];
|
||||
filter_coeff[2] = coef[5];
|
||||
filter_coeff[3] = coef[3];
|
||||
filter_coeff[4] = coef[0];
|
||||
filter_coeff[5] = coef[2];
|
||||
filter_coeff[6] = coef[6];
|
||||
|
||||
filter_clipp[0] = clip[4];
|
||||
filter_clipp[1] = clip[1];
|
||||
filter_clipp[2] = clip[5];
|
||||
filter_clipp[3] = clip[3];
|
||||
filter_clipp[4] = clip[0];
|
||||
filter_clipp[5] = clip[2];
|
||||
filter_clipp[6] = clip[6];
|
||||
|
||||
}
|
||||
else if (transpose_idx == 2)
|
||||
{
|
||||
filter_coeff[0] = coef[0];
|
||||
filter_coeff[1] = coef[3];
|
||||
filter_coeff[2] = coef[2];
|
||||
filter_coeff[3] = coef[1];
|
||||
filter_coeff[4] = coef[4];
|
||||
filter_coeff[5] = coef[5];
|
||||
filter_coeff[6] = coef[6];
|
||||
|
||||
filter_clipp[0] = clip[0];
|
||||
filter_clipp[1] = clip[3];
|
||||
filter_clipp[2] = clip[2];
|
||||
filter_clipp[3] = clip[1];
|
||||
filter_clipp[4] = clip[4];
|
||||
filter_clipp[5] = clip[5];
|
||||
filter_clipp[6] = clip[6];
|
||||
|
||||
}
|
||||
else if (transpose_idx == 3)
|
||||
{
|
||||
filter_coeff[0] = coef[4];
|
||||
filter_coeff[1] = coef[3];
|
||||
filter_coeff[2] = coef[5];
|
||||
filter_coeff[3] = coef[1];
|
||||
filter_coeff[4] = coef[0];
|
||||
filter_coeff[5] = coef[2];
|
||||
filter_coeff[6] = coef[6];
|
||||
|
||||
filter_clipp[0] = clip[4];
|
||||
filter_clipp[1] = clip[3];
|
||||
filter_clipp[2] = clip[5];
|
||||
filter_clipp[3] = clip[1];
|
||||
filter_clipp[4] = clip[0];
|
||||
filter_clipp[5] = clip[2];
|
||||
filter_clipp[6] = clip[6];
|
||||
|
||||
}
|
||||
else
|
||||
{
|
||||
filter_coeff[0] = coef[0];
|
||||
filter_coeff[1] = coef[1];
|
||||
filter_coeff[2] = coef[2];
|
||||
filter_coeff[3] = coef[3];
|
||||
filter_coeff[4] = coef[4];
|
||||
filter_coeff[5] = coef[5];
|
||||
filter_coeff[6] = coef[6];
|
||||
|
||||
filter_clipp[0] = clip[0];
|
||||
filter_clipp[1] = clip[1];
|
||||
filter_clipp[2] = clip[2];
|
||||
filter_clipp[3] = clip[3];
|
||||
filter_clipp[4] = clip[4];
|
||||
filter_clipp[5] = clip[5];
|
||||
filter_clipp[6] = clip[6];
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
for (int ii = 0; ii < cls_size_y; ii++)
|
||||
{
|
||||
p_img_0 = p_img_y_pad_0 + j + ii * src_stride;
|
||||
p_img_1 = p_img_y_pad_1 + j + ii * src_stride;
|
||||
p_img_2 = p_img_y_pad_2 + j + ii * src_stride;
|
||||
p_img_3 = p_img_y_pad_3 + j + ii * src_stride;
|
||||
p_img_4 = p_img_y_pad_4 + j + ii * src_stride;
|
||||
p_img_5 = p_img_y_pad_5 + j + ii * src_stride;
|
||||
p_img_6 = p_img_y_pad_6 + j + ii * src_stride;
|
||||
|
||||
p_rec_1 = p_rec_0 + j + ii * dst_stride;
|
||||
|
||||
const int y_vb = (blk_dst_y + i + ii) & (vb_ctu_height - 1);
|
||||
|
||||
if (y_vb < vb_pos && (y_vb >= vb_pos - (chroma ? 2 : 4))) // above
|
||||
{
|
||||
p_img_1 = (y_vb == vb_pos - 1) ? p_img_0 : p_img_1;
|
||||
p_img_3 = (y_vb >= vb_pos - 2) ? p_img_1 : p_img_3;
|
||||
p_img_5 = (y_vb >= vb_pos - 3) ? p_img_3 : p_img_5;
|
||||
|
||||
p_img_2 = (y_vb == vb_pos - 1) ? p_img_0 : p_img_2;
|
||||
p_img_4 = (y_vb >= vb_pos - 2) ? p_img_2 : p_img_4;
|
||||
p_img_6 = (y_vb >= vb_pos - 3) ? p_img_4 : p_img_6;
|
||||
}
|
||||
|
||||
else if (y_vb >= vb_pos && (y_vb <= vb_pos + (chroma ? 1 : 3))) // bottom
|
||||
{
|
||||
p_img_2 = (y_vb == vb_pos) ? p_img_0 : p_img_2;
|
||||
p_img_4 = (y_vb <= vb_pos + 1) ? p_img_2 : p_img_4;
|
||||
p_img_6 = (y_vb <= vb_pos + 2) ? p_img_4 : p_img_6;
|
||||
|
||||
p_img_1 = (y_vb == vb_pos) ? p_img_0 : p_img_1;
|
||||
p_img_3 = (y_vb <= vb_pos + 1) ? p_img_1 : p_img_3;
|
||||
p_img_5 = (y_vb <= vb_pos + 2) ? p_img_3 : p_img_5;
|
||||
}
|
||||
|
||||
bool is_near_vb_above = y_vb < vb_pos && (y_vb >= vb_pos - 1);
|
||||
bool is_near_vb_below = y_vb >= vb_pos && (y_vb <= vb_pos);
|
||||
for (int jj = 0; jj < cls_size_x; jj++)
|
||||
{
|
||||
int sum = 0;
|
||||
const kvz_pixel curr = p_img_0[+0];
|
||||
|
||||
if (filter_type == ALF_FILTER_7X7)
|
||||
{
|
||||
sum += filter_coeff[0] * (clip_alf(filter_clipp[0], curr, p_img_5[+0], p_img_6[+0]));
|
||||
|
||||
sum += filter_coeff[1] * (clip_alf(filter_clipp[1], curr, p_img_3[+1], p_img_4[-1]));
|
||||
sum += filter_coeff[2] * (clip_alf(filter_clipp[2], curr, p_img_3[+0], p_img_4[+0]));
|
||||
sum += filter_coeff[3] * (clip_alf(filter_clipp[3], curr, p_img_3[-1], p_img_4[+1]));
|
||||
|
||||
sum += filter_coeff[4] * (clip_alf(filter_clipp[4], curr, p_img_1[+2], p_img_2[-2]));
|
||||
sum += filter_coeff[5] * (clip_alf(filter_clipp[5], curr, p_img_1[+1], p_img_2[-1]));
|
||||
sum += filter_coeff[6] * (clip_alf(filter_clipp[6], curr, p_img_1[+0], p_img_2[+0]));
|
||||
sum += filter_coeff[7] * (clip_alf(filter_clipp[7], curr, p_img_1[-1], p_img_2[+1]));
|
||||
sum += filter_coeff[8] * (clip_alf(filter_clipp[8], curr, p_img_1[-2], p_img_2[+2]));
|
||||
|
||||
sum += filter_coeff[9] * (clip_alf(filter_clipp[9], curr, p_img_0[+3], p_img_0[-3]));
|
||||
sum += filter_coeff[10] * (clip_alf(filter_clipp[10], curr, p_img_0[+2], p_img_0[-2]));
|
||||
sum += filter_coeff[11] * (clip_alf(filter_clipp[11], curr, p_img_0[+1], p_img_0[-1]));
|
||||
}
|
||||
else
|
||||
{
|
||||
sum += filter_coeff[0] * (clip_alf(filter_clipp[0], curr, p_img_3[+0], p_img_4[+0]));
|
||||
|
||||
sum += filter_coeff[1] * (clip_alf(filter_clipp[1], curr, p_img_1[+1], p_img_2[-1]));
|
||||
sum += filter_coeff[2] * (clip_alf(filter_clipp[2], curr, p_img_1[+0], p_img_2[+0]));
|
||||
sum += filter_coeff[3] * (clip_alf(filter_clipp[3], curr, p_img_1[-1], p_img_2[+1]));
|
||||
|
||||
sum += filter_coeff[4] * (clip_alf(filter_clipp[4], curr, p_img_0[+2], p_img_0[-2]));
|
||||
sum += filter_coeff[5] * (clip_alf(filter_clipp[5], curr, p_img_0[+1], p_img_0[-1]));
|
||||
}
|
||||
|
||||
if (!(is_near_vb_above || is_near_vb_below))
|
||||
{
|
||||
sum = (sum + offset) >> shift;
|
||||
}
|
||||
else
|
||||
{
|
||||
sum = (sum + (1 << ((shift + 3) - 1))) >> (shift + 3);
|
||||
}
|
||||
sum += curr;
|
||||
|
||||
p_rec_1[jj] = kvz_fast_clip_32bit_to_pixel(sum);
|
||||
|
||||
p_img_0++;
|
||||
p_img_1++;
|
||||
p_img_2++;
|
||||
p_img_3++;
|
||||
p_img_4++;
|
||||
p_img_5++;
|
||||
p_img_6++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
p_rec_0 += dst_stride2;
|
||||
p_rec_1 += dst_stride2;
|
||||
|
||||
p_img_y_pad_0 += src_stride2;
|
||||
p_img_y_pad_1 += src_stride2;
|
||||
p_img_y_pad_2 += src_stride2;
|
||||
p_img_y_pad_3 += src_stride2;
|
||||
p_img_y_pad_4 += src_stride2;
|
||||
p_img_y_pad_5 += src_stride2;
|
||||
p_img_y_pad_6 += src_stride2;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static void alf_filter_5x5_block_generic(encoder_state_t* const state,
|
||||
const kvz_pixel* src_pixels,
|
||||
kvz_pixel* dst_pixels,
|
||||
const int src_stride,
|
||||
const int dst_stride,
|
||||
const short* filter_set,
|
||||
const int16_t* fClipSet,
|
||||
clp_rng clp_rng,
|
||||
const int width,
|
||||
const int height,
|
||||
int x_pos,
|
||||
int y_pos,
|
||||
int blk_dst_x,
|
||||
int blk_dst_y,
|
||||
int vb_pos,
|
||||
const int vb_ctu_height)
|
||||
{
|
||||
alf_filter_block_generic(state, src_pixels, dst_pixels, src_stride, dst_stride,
|
||||
filter_set, fClipSet, clp_rng, COMPONENT_Cb, width, height, x_pos, y_pos, blk_dst_x, blk_dst_y, vb_pos, vb_ctu_height);
|
||||
}
|
||||
|
||||
static void alf_filter_7x7_block_generic(encoder_state_t* const state,
|
||||
const kvz_pixel* src_pixels,
|
||||
kvz_pixel* dst_pixels,
|
||||
const int src_stride,
|
||||
const int dst_stride,
|
||||
const short* filter_set,
|
||||
const int16_t* fClipSet,
|
||||
clp_rng clp_rng,
|
||||
const int width,
|
||||
const int height,
|
||||
int x_pos,
|
||||
int y_pos,
|
||||
int blk_dst_x,
|
||||
int blk_dst_y,
|
||||
int vb_pos,
|
||||
const int vb_ctu_height)
|
||||
{
|
||||
alf_filter_block_generic(state, src_pixels, dst_pixels, src_stride, dst_stride, filter_set, fClipSet, clp_rng, COMPONENT_Y, width, height, x_pos, y_pos, blk_dst_x, blk_dst_y, vb_pos, vb_ctu_height);
|
||||
}
|
||||
|
||||
int kvz_strategy_register_alf_generic(void* opaque, uint8_t bitdepth)
|
||||
{
|
||||
bool success = true;
|
||||
|
||||
success &= kvz_strategyselector_register(opaque, "alf_derive_classification_blk", "generic", 0, &alf_derive_classification_blk_generic);
|
||||
success &= kvz_strategyselector_register(opaque, "alf_filter_5x5_blk", "generic", 0, &alf_filter_5x5_block_generic);
|
||||
success &= kvz_strategyselector_register(opaque, "alf_filter_7x7_blk", "generic", 0, &alf_filter_7x7_block_generic);
|
||||
|
||||
return success;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -26,7 +26,8 @@
|
|||
|
||||
// Define function pointers.
|
||||
alf_derive_classification_blk_func* kvz_alf_derive_classification_blk;
|
||||
|
||||
alf_filter_5x5_blk_func* kvz_alf_filter_5x5_blk;
|
||||
alf_filter_7x7_blk_func* kvz_alf_filter_7x7_blk;
|
||||
|
||||
int kvz_strategy_register_alf(void* opaque, uint8_t bitdepth) {
|
||||
bool success = true;
|
||||
|
|
|
|||
|
|
@ -22,7 +22,7 @@
|
|||
/**
|
||||
* \ingroup Optimization
|
||||
* \file
|
||||
* Interface for sao functions.
|
||||
* Interface for alf functions.
|
||||
*/
|
||||
|
||||
#include "encoder.h"
|
||||
|
|
@ -44,13 +44,51 @@ typedef void (alf_derive_classification_blk_func)(encoder_state_t * const state,
|
|||
const int vb_ctu_height,
|
||||
int vb_pos);
|
||||
|
||||
typedef void (alf_filter_5x5_blk_func)(encoder_state_t* const state,
|
||||
const kvz_pixel* src_pixels,
|
||||
kvz_pixel* dst_pixels,
|
||||
const int src_stride,
|
||||
const int dst_stride,
|
||||
const short* filter_set,
|
||||
const int16_t* fClipSet,
|
||||
clp_rng clp_rng,
|
||||
const int width,
|
||||
const int height,
|
||||
int x_pos,
|
||||
int y_pos,
|
||||
int blk_dst_x,
|
||||
int blk_dst_y,
|
||||
int vb_pos,
|
||||
const int vb_ctu_height);
|
||||
|
||||
typedef void (alf_filter_7x7_blk_func)(encoder_state_t* const state,
|
||||
const kvz_pixel* src_pixels,
|
||||
kvz_pixel* dst_pixels,
|
||||
const int src_stride,
|
||||
const int dst_stride,
|
||||
const short* filter_set,
|
||||
const int16_t* fClipSet,
|
||||
clp_rng clp_rng,
|
||||
const int width,
|
||||
const int height,
|
||||
int x_pos,
|
||||
int y_pos,
|
||||
int blk_dst_x,
|
||||
int blk_dst_y,
|
||||
int vb_pos,
|
||||
const int vb_ctu_height);
|
||||
|
||||
// Declare function pointers.
|
||||
extern alf_derive_classification_blk_func * kvz_alf_derive_classification_blk;
|
||||
extern alf_filter_5x5_blk_func* kvz_alf_filter_5x5_blk;
|
||||
extern alf_filter_7x7_blk_func* kvz_alf_filter_7x7_blk;
|
||||
|
||||
int kvz_strategy_register_alf(void* opaque, uint8_t bitdepth);
|
||||
|
||||
|
||||
#define STRATEGIES_ALF_EXPORTS \
|
||||
{"alf_derive_classification_blk", (void**) &kvz_alf_derive_classification_blk}, \
|
||||
{"alf_filter_5x5_blk", (void**) &kvz_alf_filter_5x5_blk}, \
|
||||
{"alf_filter_7x7_blk", (void**) &kvz_alf_filter_7x7_blk}, \
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue