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https://github.com/ultravideo/uvg266.git
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Refactor: filter.c/.h full cleanup.
This commit is contained in:
Ari Koivula
parent
61c1d7413f
commit
4416d6ec36
380
src/filter.c
380
src/filter.c
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@ -19,191 +19,212 @@
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#include "bitstream.h"
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#include "picture.h"
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#include "cabac.h"
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#include "transform.h"
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extern const uint8_t g_chroma_scale[58];
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const uint8_t tctable_8x8[54] =
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//////////////////////////////////////////////////////////////////////////
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// INITIALIZATIONS
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const uint8_t g_tc_table_8x8[54] =
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{
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,5,5,6,6,7,8,9,10,11,13,14,16,18,20,22,24
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 2, 2, 2,
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2, 3, 3, 3, 3, 4, 4, 4, 5, 5,
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6, 6, 7, 8, 9, 10, 11, 13, 14, 16,
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18, 20, 22, 24
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};
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const uint8_t betatable_8x8[52] =
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const uint8_t g_beta_table_8x8[52] =
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{
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,7,8,9,10,11,12,13,14,15,16,17,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 6, 7, 8, 9,
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10, 11, 12, 13, 14, 15, 16, 17, 18, 20,
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22, 24, 26, 28, 30, 32, 34, 36, 38, 40,
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42, 44, 46, 48, 50, 52, 54, 56, 58, 60,
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62, 64
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};
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//////////////////////////////////////////////////////////////////////////
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// FUNCTIONS
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INLINE void filter_deblock_luma( uint8_t* src, int32_t offset, int32_t tc , int8_t sw, int8_t part_P_nofilter, int8_t part_Q_nofilter, int32_t thr_cut, int8_t filter_second_P, int8_t filter_second_Q)
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/**
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* \brief
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*/
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INLINE void filter_deblock_luma(uint8_t *src, int32_t offset,
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int32_t tc, int8_t sw,
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int8_t part_P_nofilter, int8_t part_Q_nofilter,
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int32_t thr_cut,
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int8_t filter_second_P, int8_t filter_second_Q)
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{
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int32_t delta;
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int16_t m0 = src[-offset*4];
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int16_t m1 = src[-offset*3];
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int16_t m2 = src[-offset*2];
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int16_t m0 = src[-offset * 4];
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int16_t m1 = src[-offset * 3];
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int16_t m2 = src[-offset * 2];
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int16_t m3 = src[-offset];
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int16_t m4 = src[0];
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int16_t m5 = src[ offset];
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int16_t m6 = src[ offset*2];
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int16_t m7 = src[ offset*3];
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int16_t m5 = src[offset];
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int16_t m6 = src[offset * 2];
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int16_t m7 = src[offset * 3];
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if (sw)
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{
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src[-offset*3] = CLIP(m1-2*tc, m1+2*tc, ((2*m0 + 3*m1 + m2 + m3 + m4 + 4 )>>3));
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src[-offset*2] = CLIP(m2-2*tc, m2+2*tc, ((m1 + m2 + m3 + m4 + 2)>>2));
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src[-offset] = CLIP(m3-2*tc, m3+2*tc, ((m1 + 2*m2 + 2*m3 + 2*m4 + m5 + 4) >> 3));
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src[0] = CLIP(m4-2*tc, m4+2*tc, ((m2 + 2*m3 + 2*m4 + 2*m5 + m6 + 4) >> 3));
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src[ offset] = CLIP(m5-2*tc, m5+2*tc, ((m3 + m4 + m5 + m6 + 2)>>2));
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src[ offset*2] = CLIP(m6-2*tc, m6+2*tc, ((m3 + m4 + m5 + 3*m6 + 2*m7 + 4 )>>3));
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}
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else
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{
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if (sw) {
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src[-offset * 3] = CLIP(m1 - 2*tc, m1 + 2*tc, (2*m0 + 3*m1 + m2 + m3 + m4 + 4) >> 3);
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src[-offset * 2] = CLIP(m2 - 2*tc, m2 + 2*tc, ( m1 + m2 + m3 + m4 + 2) >> 2);
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src[-offset] = CLIP(m3 - 2*tc, m3 + 2*tc, ( m1 + 2*m2 + 2*m3 + 2*m4 + m5 + 4) >> 3);
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src[0] = CLIP(m4 - 2*tc, m4 + 2*tc, ( m2 + 2*m3 + 2*m4 + 2*m5 + m6 + 4) >> 3);
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src[offset] = CLIP(m5 - 2*tc, m5 + 2*tc, ( m3 + m4 + m5 + m6 + 2) >> 2);
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src[offset * 2] = CLIP(m6 - 2*tc, m6 + 2*tc, ( m3 + m4 + m5 + 3*m6 + 2*m7 + 4) >> 3);
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} else {
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// Weak filter
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delta = (9*(m4-m3) -3*(m5-m2) + 8)>>4;
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delta = (9*(m4 - m3) - 3*(m5 - m2) + 8) >> 4;
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if ( abs(delta) < thr_cut )
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{
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int32_t tc2 = tc>>1;
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if (abs(delta) < thr_cut) {
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int32_t tc2 = tc >> 1;
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delta = CLIP(-tc, tc, delta);
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src[-offset] = CLIP(0,(1 << g_bitdepth)-1,(m3+delta));
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src[0] = CLIP(0,(1 << g_bitdepth)-1,(m4-delta));
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src[-offset] = CLIP(0, (1 << g_bitdepth) - 1, (m3 + delta));
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src[0] = CLIP(0, (1 << g_bitdepth) - 1, (m4 - delta));
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if(filter_second_P)
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{
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int32_t delta1 = CLIP(-tc2, tc2, (( ((m1+m3+1)>>1)- m2+delta)>>1));
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src[-offset*2] = CLIP(0,(1 << g_bitdepth)-1,(m2+delta1));
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if(filter_second_P) {
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int32_t delta1 = CLIP(-tc2, tc2, (((m1 + m3 + 1) >> 1) - m2 + delta) >> 1);
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src[-offset * 2] = CLIP(0, (1 << g_bitdepth) - 1, m2 + delta1);
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}
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if(filter_second_Q)
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{
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int32_t delta2 = CLIP(-tc2, tc2, (( ((m6+m4+1)>>1)- m5-delta)>>1));
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src[ offset] = CLIP(0,(1 << g_bitdepth)-1,(m5+delta2));
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if(filter_second_Q) {
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int32_t delta2 = CLIP(-tc2, tc2, (((m6 + m4 + 1) >> 1) - m5 - delta) >> 1);
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src[offset] = CLIP(0, (1 << g_bitdepth) - 1, m5 + delta2);
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}
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}
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}
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if(part_P_nofilter)
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{
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if(part_P_nofilter) {
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src[-offset] = (uint8_t)m3;
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src[-offset*2] = (uint8_t)m2;
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src[-offset*3] = (uint8_t)m1;
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}
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if(part_Q_nofilter)
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{
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if(part_Q_nofilter) {
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src[0] = (uint8_t)m4;
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src[ offset] = (uint8_t)m5;
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src[ offset*2] = (uint8_t)m6;
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src[offset] = (uint8_t)m5;
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src[offset*2] = (uint8_t)m6;
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}
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}
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INLINE void filter_deblock_chroma( uint8_t* src, int32_t offset, int32_t tc ,int8_t part_P_nofilter, int8_t part_Q_nofilter)
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/**
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* \brief
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*/
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INLINE void filter_deblock_chroma(uint8_t *src, int32_t offset, int32_t tc,
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int8_t part_P_nofilter, int8_t part_Q_nofilter)
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{
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int32_t delta;
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int16_t m2 = src[-offset*2];
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int16_t m2 = src[-offset * 2];
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int16_t m3 = src[-offset];
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int16_t m4 = src[0];
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int16_t m5 = src[ offset];
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int16_t m5 = src[offset];
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delta = CLIP(-tc,tc, (((( m4 - m3 ) << 2 ) + m2 - m5 + 4 ) >> 3) );
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if(!part_P_nofilter)
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{
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src[-offset] = CLIP(0,(1 << g_bitdepth)-1,m3+delta);
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delta = CLIP(-tc,tc, (((m4 - m3) << 2) + m2 - m5 + 4 ) >> 3);
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if(!part_P_nofilter) {
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src[-offset] = CLIP(0, (1 << g_bitdepth) - 1, m3 + delta);
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}
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if(!part_Q_nofilter)
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{
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src[0] = CLIP(0,(1 << g_bitdepth)-1,m4-delta);
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if(!part_Q_nofilter) {
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src[0] = CLIP(0, (1 << g_bitdepth) - 1, m4 - delta);
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}
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}
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void filter_deblock_edge_luma(encoder_control* encoder, int32_t xpos, int32_t ypos, int8_t depth, int8_t dir)
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/**
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* \brief
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*/
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void filter_deblock_edge_luma(encoder_control *encoder,
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int32_t xpos, int32_t ypos,
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int8_t depth, int8_t dir)
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{
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int32_t stride = encoder->in.cur_pic->width;
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int32_t offset = stride;
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int32_t betaOffsetDiv2 = encoder->beta_offset_div2;
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int32_t tcOffsetDiv2 = encoder->tc_offset_div2;
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int8_t uiBs = 2; /* Filter strength */
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/* TODO: support 10+bits */
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uint8_t* origsrc = &encoder->in.cur_pic->y_recdata[xpos+ypos*stride];
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uint8_t* src = origsrc;
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int32_t beta_offset_div2 = encoder->beta_offset_div2;
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int32_t tc_offset_div2 = encoder->tc_offset_div2;
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int8_t strength = 2; // Filter strength
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// TODO: support 10+bits
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uint8_t *orig_src = &encoder->in.cur_pic->y_recdata[xpos + ypos*stride];
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uint8_t *src = orig_src;
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int32_t step = 1;
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//CU_info* cu = &encoder->in.cur_pic->CU[depth][(xpos>>scu_width_log2) + (ypos>>scu_width_log2)*(encoder->in.width>>scu_width_log2)];
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if(dir == EDGE_VER)
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{
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if(dir == EDGE_VER) {
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offset = 1;
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step = stride;
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}
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{
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int32_t QP = encoder->QP;
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int32_t bitdepth_scale = 1 << (g_bitdepth-8);
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int32_t TC_index = CLIP(0, 51+2, (int32_t)(QP + 2*(uiBs-1) + (tcOffsetDiv2 << 1)));
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int32_t B_index = CLIP(0, 51, QP + (betaOffsetDiv2 << 1));
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int32_t Tc = tctable_8x8[TC_index]*bitdepth_scale;
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int32_t Beta = betatable_8x8[B_index]*bitdepth_scale;
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int32_t side_threshold = (Beta+(Beta>>1))>>3;
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int32_t iThrCut = Tc*10;
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uint32_t blocks_in_part= (LCU_WIDTH>>depth) / 4;
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int32_t qp = encoder->QP;
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int32_t bitdepth_scale = 1 << (g_bitdepth - 8);
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int32_t tc_index = CLIP(0, 51 + 2, (int32_t)(qp + 2*(strength - 1) + (tc_offset_div2 << 1)));
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int32_t b_index = CLIP(0, 51, qp + (beta_offset_div2 << 1));
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int32_t tc = g_tc_table_8x8[tc_index] * bitdepth_scale;
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int32_t beta = g_beta_table_8x8[b_index] * bitdepth_scale;
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int32_t side_threshold = (beta + (beta >>1 )) >> 3;
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int32_t thr_cut = tc * 10;
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uint32_t blocks_in_part = (LCU_WIDTH >> depth) / 4;
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uint32_t block_idx;
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/* TODO: add CU based QP calculation */
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// TODO: add CU based QP calculation
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/* For each 4-pixel part in the edge */
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for (block_idx = 0; block_idx < blocks_in_part; block_idx++)
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// For each 4-pixel part in the edge
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for (block_idx = 0; block_idx < blocks_in_part; ++block_idx)
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{
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int32_t dp0,dq0,dp3,dq3,d0,d3,dp,dq,d;
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int32_t dp0, dq0, dp3, dq3, d0, d3, dp, dq, d;
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/* Check conditions for filtering */
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// Check conditions for filtering
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// TODO: Get rid of these inline defines.
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#define calc_DP(s,o) abs( (int16_t)s[-o*3] - (int16_t)2*s[-o*2] + (int16_t)s[-o] )
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#define calc_DQ(s,o) abs( (int16_t)s[0] - (int16_t)2*s[o] + (int16_t)s[o*2] )
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dp0 = calc_DP( (src+step*(block_idx*4+0)), offset);
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dq0 = calc_DQ( (src+step*(block_idx*4+0)), offset);
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dp3 = calc_DP( (src+step*(block_idx*4+3)), offset);
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dq3 = calc_DQ( (src+step*(block_idx*4+3)), offset);
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dp0 = calc_DP((src+step*(block_idx*4+0)), offset);
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dq0 = calc_DQ((src+step*(block_idx*4+0)), offset);
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dp3 = calc_DP((src+step*(block_idx*4+3)), offset);
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dq3 = calc_DQ((src+step*(block_idx*4+3)), offset);
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d0 = dp0 + dq0;
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d3 = dp3 + dq3;
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dp = dp0 + dp3;
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dq = dq0 + dq3;
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d = d0 + d3;
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#if ENABLE_PCM == 1
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//TODO: add PCM deblocking
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#if ENABLE_PCM
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// TODO: add PCM deblocking
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#endif
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if (d < Beta)
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{
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int8_t filter_P = (dp < side_threshold)?1:0;
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int8_t filter_Q = (dq < side_threshold)?1:0;
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/* Strong filtering flag checking */
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#define useStrongFiltering(o,d,s) ( ((abs(s[-o*4]-s[-o]) + abs(s[o*3]-s[0])) < (Beta>>3)) && (d<(Beta>>2)) && ( abs(s[-o]-s[0]) < ((Tc*5+1)>>1)) )
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int8_t sw = useStrongFiltering( offset, 2*d0, (src+step*(block_idx*4+0))) &&
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useStrongFiltering( offset, 2*d3, (src+step*(block_idx*4+3)));
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if (d < beta) {
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int8_t filter_P = (dp < side_threshold) ? 1 : 0;
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int8_t filter_Q = (dq < side_threshold) ? 1 : 0;
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/* Filter four rows/columns */
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filter_deblock_luma( src+step*(block_idx*4+0), offset, Tc, sw, 0, 0, iThrCut, filter_P, filter_Q);
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filter_deblock_luma( src+step*(block_idx*4+1), offset, Tc, sw, 0, 0, iThrCut, filter_P, filter_Q);
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filter_deblock_luma( src+step*(block_idx*4+2), offset, Tc, sw, 0, 0, iThrCut, filter_P, filter_Q);
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filter_deblock_luma( src+step*(block_idx*4+3), offset, Tc, sw, 0, 0, iThrCut, filter_P, filter_Q);
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// Strong filtering flag checking
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#define useStrongFiltering(o,d,s) ( ((abs(s[-o*4]-s[-o]) + abs(s[o*3]-s[0])) < (beta>>3)) && (d<(beta>>2)) && ( abs(s[-o]-s[0]) < ((tc*5+1)>>1)) )
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int8_t sw = useStrongFiltering(offset, 2*d0, (src+step*(block_idx*4+0))) &&
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useStrongFiltering(offset, 2*d3, (src+step*(block_idx*4+3)));
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// Filter four rows/columns
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filter_deblock_luma(src + step * (4*block_idx + 0), offset, tc, sw, 0, 0, thr_cut, filter_P, filter_Q);
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filter_deblock_luma(src + step * (4*block_idx + 1), offset, tc, sw, 0, 0, thr_cut, filter_P, filter_Q);
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filter_deblock_luma(src + step * (4*block_idx + 2), offset, tc, sw, 0, 0, thr_cut, filter_P, filter_Q);
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filter_deblock_luma(src + step * (4*block_idx + 3), offset, tc, sw, 0, 0, thr_cut, filter_P, filter_Q);
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}
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}
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}
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}
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void filter_deblock_edge_chroma(encoder_control* encoder,int32_t xpos, int32_t ypos, int8_t depth, int8_t dir)
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/**
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* \brief
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*/
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void filter_deblock_edge_chroma(encoder_control *encoder,
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int32_t x, int32_t y,
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int8_t depth, int8_t dir)
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{
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int32_t stride = encoder->in.cur_pic->width>>1;
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int32_t tcOffsetDiv2 = encoder->tc_offset_div2;
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int8_t uiNumParts = 1;
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/* TODO: support 10+bits */
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uint8_t* srcU = &encoder->in.cur_pic->u_recdata[xpos+ypos*stride];
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uint8_t* srcV = &encoder->in.cur_pic->v_recdata[xpos+ypos*stride];
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/* Init offset and step to EDGE_HOR */
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int32_t stride = encoder->in.cur_pic->width >> 1;
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int32_t tc_offset_div2 = encoder->tc_offset_div2;
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int8_t num_parts = 1;
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// TODO: support 10+bits
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uint8_t* src_u = &encoder->in.cur_pic->u_recdata[x + y*stride];
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uint8_t* src_v = &encoder->in.cur_pic->v_recdata[x + y*stride];
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// Init offset and step to EDGE_HOR
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int32_t offset = stride;
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int32_t step = 1;
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/* We cannot filter edges not on 8x8 grid */
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if( depth == MAX_DEPTH && (( (ypos & 0x7) && dir == EDGE_HOR ) || ( (xpos & 0x7) && dir == EDGE_VER ) ) )
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// We cannot filter edges not on 8x8 grid
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if(depth == MAX_DEPTH && (( (y & 0x7) && dir == EDGE_HOR ) || ( (x & 0x7) && dir == EDGE_VER ) ) )
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{
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return;
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}
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@ -218,108 +239,103 @@ void filter_deblock_edge_chroma(encoder_control* encoder,int32_t xpos, int32_t y
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{
|
||||
int32_t QP = g_chroma_scale[encoder->QP];
|
||||
int32_t bitdepth_scale = 1 << (g_bitdepth-8);
|
||||
int32_t TC_index = CLIP(0, 51+2, (int32_t)(QP + 2 + (tcOffsetDiv2 << 1)));
|
||||
int32_t Tc = tctable_8x8[TC_index]*bitdepth_scale;
|
||||
int32_t TC_index = CLIP(0, 51+2, (int32_t)(QP + 2 + (tc_offset_div2 << 1)));
|
||||
int32_t Tc = g_tc_table_8x8[TC_index]*bitdepth_scale;
|
||||
uint32_t blocks_in_part= (LCU_WIDTH>>(depth+1)) / 4;
|
||||
uint32_t blk_idx;
|
||||
|
||||
for (blk_idx = 0; blk_idx < blocks_in_part; blk_idx++)
|
||||
for (blk_idx = 0; blk_idx < blocks_in_part; ++blk_idx)
|
||||
{
|
||||
/* Chroma U */
|
||||
filter_deblock_chroma( srcU+step*(blk_idx*4+0), offset, Tc,0, 0);
|
||||
filter_deblock_chroma( srcU+step*(blk_idx*4+1), offset, Tc,0, 0);
|
||||
filter_deblock_chroma( srcU+step*(blk_idx*4+2), offset, Tc,0, 0);
|
||||
filter_deblock_chroma( srcU+step*(blk_idx*4+3), offset, Tc,0, 0);
|
||||
/* Chroma V */
|
||||
filter_deblock_chroma( srcV+step*(blk_idx*4+0), offset, Tc,0, 0);
|
||||
filter_deblock_chroma( srcV+step*(blk_idx*4+1), offset, Tc,0, 0);
|
||||
filter_deblock_chroma( srcV+step*(blk_idx*4+2), offset, Tc,0, 0);
|
||||
filter_deblock_chroma( srcV+step*(blk_idx*4+3), offset, Tc,0, 0);
|
||||
// Chroma U
|
||||
filter_deblock_chroma(src_u + step * (4*blk_idx + 0), offset, Tc, 0, 0);
|
||||
filter_deblock_chroma(src_u + step * (4*blk_idx + 1), offset, Tc, 0, 0);
|
||||
filter_deblock_chroma(src_u + step * (4*blk_idx + 2), offset, Tc, 0, 0);
|
||||
filter_deblock_chroma(src_u + step * (4*blk_idx + 3), offset, Tc, 0, 0);
|
||||
// Chroma V
|
||||
filter_deblock_chroma(src_v + step * (4*blk_idx + 0), offset, Tc, 0, 0);
|
||||
filter_deblock_chroma(src_v + step * (4*blk_idx + 1), offset, Tc, 0, 0);
|
||||
filter_deblock_chroma(src_v + step * (4*blk_idx + 2), offset, Tc, 0, 0);
|
||||
filter_deblock_chroma(src_v + step * (4*blk_idx + 3), offset, Tc, 0, 0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*! \brief function to split LCU into smaller CU blocks
|
||||
\param encoder the encoder info structure
|
||||
\param xCtb block x-position (as SCU)
|
||||
\param yCtb block y-position (as SCU)
|
||||
\param depth block depth
|
||||
\param edge which edge we are filtering
|
||||
|
||||
This function takes (SCU) block position as input and splits the block
|
||||
until the coded block size has been achived. Calls luma and chroma filtering
|
||||
functions for each coded CU size
|
||||
*/
|
||||
void filter_deblock_cu(encoder_control* encoder, int32_t xCtb, int32_t yCtb, int8_t depth, int32_t edge)
|
||||
/**
|
||||
* \brief function to split LCU into smaller CU blocks
|
||||
* \param encoder the encoder info structure
|
||||
* \param xCtb block x-position (as SCU)
|
||||
* \param yCtb block y-position (as SCU)
|
||||
* \param depth block depth
|
||||
* \param edge which edge we are filtering
|
||||
*
|
||||
* This function takes (SCU) block position as input and splits the block
|
||||
* until the coded block size has been achived. Calls luma and chroma filtering
|
||||
* functions for each coded CU size.
|
||||
*/
|
||||
void filter_deblock_cu(encoder_control *encoder, int32_t x, int32_t y, int8_t depth, int32_t edge)
|
||||
{
|
||||
CU_info *cur_CU = &encoder->in.cur_pic->CU[depth][xCtb+yCtb*(encoder->in.width_in_lcu<<MAX_DEPTH)];
|
||||
uint8_t split_flag = (cur_CU->depth > depth)?1:0;
|
||||
uint8_t border_x = ((encoder->in.width)<( xCtb*(LCU_WIDTH>>MAX_DEPTH) + (LCU_WIDTH>>depth) ))?1:0;
|
||||
uint8_t border_y = ((encoder->in.height)<( yCtb*(LCU_WIDTH>>MAX_DEPTH) + (LCU_WIDTH>>depth) ))?1:0;
|
||||
uint8_t border_split_x = ((encoder->in.width) < ( (xCtb+1)*(LCU_WIDTH>>MAX_DEPTH) + (LCU_WIDTH>>(depth+1)) ))?0:1;
|
||||
uint8_t border_split_y = ((encoder->in.height) < ( (yCtb+1)*(LCU_WIDTH>>MAX_DEPTH) + (LCU_WIDTH>>(depth+1)) ))?0:1;
|
||||
CU_info *cur_cu = &encoder->in.cur_pic->CU[depth][x + y*(encoder->in.width_in_lcu << MAX_DEPTH)];
|
||||
uint8_t split_flag = (cur_cu->depth > depth) ? 1 : 0;
|
||||
uint8_t border_x = (encoder->in.width < x*(LCU_WIDTH >> MAX_DEPTH) + (LCU_WIDTH >> depth)) ? 1 : 0;
|
||||
uint8_t border_y = (encoder->in.height < y*(LCU_WIDTH >> MAX_DEPTH) + (LCU_WIDTH >> depth)) ? 1 : 0;
|
||||
uint8_t border_split_x = (encoder->in.width < ((x + 1) * (LCU_WIDTH >> MAX_DEPTH)) + (LCU_WIDTH >> (depth + 1))) ? 0 : 1;
|
||||
uint8_t border_split_y = (encoder->in.height < ((y + 1) * (LCU_WIDTH >> MAX_DEPTH)) + (LCU_WIDTH >> (depth + 1))) ? 0 : 1;
|
||||
|
||||
uint8_t border = border_x | border_y; /*!< are we in any border CU */
|
||||
uint8_t border = border_x | border_y; // are we in any border CU?
|
||||
|
||||
/* split 64x64, on split flag and on border */
|
||||
if(!depth || split_flag || border)
|
||||
{
|
||||
/* Split blocks and remember to change x and y block positions */
|
||||
uint8_t change = 1<<(MAX_DEPTH-1-depth);
|
||||
filter_deblock_cu(encoder,xCtb,yCtb,depth+1,edge); /* x,y */
|
||||
|
||||
if(!border_x || border_split_x)
|
||||
{
|
||||
filter_deblock_cu(encoder,xCtb+change,yCtb,depth+1,edge); /* x+1,y */
|
||||
// split 64x64, on split flag and on border
|
||||
if (depth == 0 || split_flag || border) {
|
||||
// Split the four sub-blocks of this block recursively.
|
||||
uint8_t change = 1 << (MAX_DEPTH - 1 - depth);
|
||||
filter_deblock_cu(encoder, x, y, depth + 1, edge);
|
||||
if(!border_x || border_split_x) {
|
||||
filter_deblock_cu(encoder, x + change, y, depth + 1, edge);
|
||||
}
|
||||
if(!border_y || border_split_y)
|
||||
{
|
||||
filter_deblock_cu(encoder,xCtb,yCtb+change,depth+1,edge); /* x,y+1 */
|
||||
if(!border_y || border_split_y) {
|
||||
filter_deblock_cu(encoder, x , y + change, depth + 1, edge);
|
||||
}
|
||||
if((!border_x && !border_y) || (border_split_x && border_split_y) )
|
||||
{
|
||||
filter_deblock_cu(encoder,xCtb+change,yCtb+change,depth+1,edge); /* x+1,y+1 */
|
||||
if((!border_x && !border_y) || (border_split_x && border_split_y)) {
|
||||
filter_deblock_cu(encoder, x + change, y + change, depth + 1, edge);
|
||||
}
|
||||
return;
|
||||
}
|
||||
/* no filtering on borders (where filter would use pixels outside the picture) */
|
||||
if((!xCtb && edge == EDGE_VER) || (!yCtb && edge == EDGE_HOR)) return;
|
||||
|
||||
/* do the filtering for block edge */
|
||||
filter_deblock_edge_luma(encoder, xCtb*(LCU_WIDTH>>MAX_DEPTH), yCtb*(LCU_WIDTH>>MAX_DEPTH), depth, edge);
|
||||
filter_deblock_edge_chroma(encoder, xCtb*(LCU_WIDTH>>(MAX_DEPTH+1)), yCtb*(LCU_WIDTH>>(MAX_DEPTH+1)), depth, edge);
|
||||
// no filtering on borders (where filter would use pixels outside the picture)
|
||||
if ((x == 0 && edge == EDGE_VER) || (y == 0 && edge == EDGE_HOR)) return;
|
||||
|
||||
// do the filtering for block edge
|
||||
filter_deblock_edge_luma(encoder, x*(LCU_WIDTH >> MAX_DEPTH), y*(LCU_WIDTH >> MAX_DEPTH), depth, edge);
|
||||
filter_deblock_edge_chroma(encoder, x*(LCU_WIDTH >> (MAX_DEPTH + 1)), y*(LCU_WIDTH >> (MAX_DEPTH + 1)), depth, edge);
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*! \brief Main function for Deblocking filtering
|
||||
\param encoder the encoder info structure
|
||||
|
||||
This is the main function for deblocking filter, it will loop through all the
|
||||
Largest Coding Units and call filter_deblock_CU with absolute X and Y coordinate
|
||||
of the LCU.
|
||||
*/
|
||||
/**
|
||||
* \brief Main function for Deblocking filtering
|
||||
* \param encoder the encoder info structure
|
||||
*
|
||||
* This is the main function for deblocking filter, it will loop through all
|
||||
* the Largest Coding Units (LCU) and call filter_deblock_cu with absolute
|
||||
* X and Y coordinates of the LCU.
|
||||
*/
|
||||
void filter_deblock(encoder_control* encoder)
|
||||
{
|
||||
int16_t xCtb,yCtb;
|
||||
int16_t x, y;
|
||||
|
||||
/* TODO: Optimization: add thread for each LCU */
|
||||
/* Loop through every LCU in the slice */
|
||||
for(yCtb = 0; yCtb < encoder->in.height_in_lcu; yCtb++)
|
||||
// TODO: Optimization: add thread for each LCU
|
||||
// Filter vertically.
|
||||
for (y = 0; y < encoder->in.height_in_lcu; y++)
|
||||
{
|
||||
for(xCtb = 0; xCtb < encoder->in.width_in_lcu; xCtb++)
|
||||
for (x = 0; x < encoder->in.width_in_lcu; x++)
|
||||
{
|
||||
filter_deblock_cu(encoder, xCtb<<MAX_DEPTH, yCtb<<MAX_DEPTH, 0, EDGE_VER);
|
||||
filter_deblock_cu(encoder, x << MAX_DEPTH, y << MAX_DEPTH, 0, EDGE_VER);
|
||||
}
|
||||
}
|
||||
|
||||
/* Loop through every LCU in the slice */
|
||||
for(yCtb = 0; yCtb < encoder->in.height_in_lcu; yCtb++)
|
||||
// Filter horizontally.
|
||||
for (y = 0; y < encoder->in.height_in_lcu; y++)
|
||||
{
|
||||
for(xCtb = 0; xCtb < encoder->in.width_in_lcu; xCtb++)
|
||||
for (x = 0; x < encoder->in.width_in_lcu; x++)
|
||||
{
|
||||
filter_deblock_cu(encoder, xCtb<<MAX_DEPTH, yCtb<<MAX_DEPTH, 0, EDGE_HOR);
|
||||
filter_deblock_cu(encoder, x << MAX_DEPTH, y << MAX_DEPTH, 0, EDGE_HOR);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
32
src/filter.h
32
src/filter.h
|
|
@ -17,17 +17,29 @@
|
|||
#include "encoder.h"
|
||||
|
||||
|
||||
//////////////////////////////////////////////////////////////////////////
|
||||
// FUNCTIONS
|
||||
// Deblocking
|
||||
void filter_deblock_cu(encoder_control *encoder, int32_t x_cu, int32_t y_cu,
|
||||
int8_t depth, int32_t edge);
|
||||
void filter_deblock_edge_luma(encoder_control *encoder,
|
||||
int32_t x_pos, int32_t y_pos,
|
||||
int8_t depth, int8_t dir);
|
||||
void filter_deblock_edge_chroma(encoder_control *encoder,
|
||||
int32_t xpos, int32_t ypos,
|
||||
int8_t depth, int8_t dir);
|
||||
void filter_deblock(encoder_control *encoder);
|
||||
void filter_deblock_luma(uint8_t *src, int32_t offset, int32_t tc , int8_t sw,
|
||||
int8_t part_p_nofilter, int8_t part_q_nofilter,
|
||||
int32_t thr_cut,
|
||||
int8_t filter_second_p, int8_t filter_second_q);
|
||||
void filter_deblock_chroma(uint8_t *src, int32_t offset, int32_t tc,
|
||||
int8_t part_p_nofilter, int8_t part_q_nofilter);
|
||||
// SAO
|
||||
|
||||
//////////////////////////////////////////////////////////////////////////
|
||||
// MACROS
|
||||
#define EDGE_VER 0
|
||||
#define EDGE_HOR 1
|
||||
|
||||
/* DEBLOCKING */
|
||||
void filter_deblock_cu(encoder_control* encoder, int32_t x_cu, int32_t y_cu, int8_t depth, int32_t edge);
|
||||
void filter_deblock_edge_luma(encoder_control* encoder, int32_t x_pos, int32_t y_pos, int8_t depth, int8_t dir);
|
||||
void filter_deblock_edge_chroma(encoder_control* encoder,int32_t xpos, int32_t ypos, int8_t depth, int8_t dir);
|
||||
void filter_deblock(encoder_control* encoder);
|
||||
void filter_deblock_luma( uint8_t* src, int32_t offset, int32_t tc , int8_t sw, int8_t part_p_nofilter, int8_t part_q_nofilter, int32_t thr_cut, int8_t filter_second_p, int8_t filter_second_q);
|
||||
void filter_deblock_chroma( uint8_t* src, int32_t offset, int32_t tc ,int8_t part_p_nofilter, int8_t part_q_nofilter);
|
||||
|
||||
/* SAO */
|
||||
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Reference in a new issue