- &frame->plane[i][(i_height-1)*frame->i_stride[i]],
- i_width + i_padx );
- }
- }
-}
-
-
-/* cavlc + 8x8 transform stores nnz per 16 coeffs for the purpose of
- * entropy coding, but per 64 coeffs for the purpose of deblocking */
-static void munge_cavlc_nnz_row( x264_t *h, int mb_y, uint8_t (*buf)[16] )
-{
- uint32_t (*src)[6] = (uint32_t(*)[6])h->mb.non_zero_count + mb_y * h->sps->i_mb_width;
- int8_t *transform = h->mb.mb_transform_size + mb_y * h->sps->i_mb_width;
- int x, nnz;
- for( x=0; x<h->sps->i_mb_width; x++ )
- {
- memcpy( buf+x, src+x, 16 );
- if( transform[x] )
- {
- nnz = src[x][0] | src[x][1];
- src[x][0] = src[x][1] = ((uint16_t)nnz ? 0x0101 : 0) + (nnz>>16 ? 0x01010000 : 0);
- nnz = src[x][2] | src[x][3];
- src[x][2] = src[x][3] = ((uint16_t)nnz ? 0x0101 : 0) + (nnz>>16 ? 0x01010000 : 0);
- }
- }
-}
-
-static void restore_cavlc_nnz_row( x264_t *h, int mb_y, uint8_t (*buf)[16] )
-{
- uint8_t (*dst)[24] = h->mb.non_zero_count + mb_y * h->sps->i_mb_width;
- int x;
- for( x=0; x<h->sps->i_mb_width; x++ )
- memcpy( dst+x, buf+x, 16 );
-}
-
-static void munge_cavlc_nnz( x264_t *h, int mb_y, uint8_t (*buf)[16], void (*func)(x264_t*, int, uint8_t (*)[16]) )
-{
- func( h, mb_y, buf );
- if( mb_y > 0 )
- func( h, mb_y-1, buf + h->sps->i_mb_width );
- if( h->sh.b_mbaff )
- {
- func( h, mb_y+1, buf + h->sps->i_mb_width * 2 );
- if( mb_y > 0 )
- func( h, mb_y-2, buf + h->sps->i_mb_width * 3 );
- }
-}
-
-
-/* Deblocking filter */
-static const uint8_t i_alpha_table[52+12*2] =
-{
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 4, 4, 5, 6,
- 7, 8, 9, 10, 12, 13, 15, 17, 20, 22,
- 25, 28, 32, 36, 40, 45, 50, 56, 63, 71,
- 80, 90,101,113,127,144,162,182,203,226,
- 255,255,
- 255,255,255,255,255,255,255,255,255,255,255,255,
-};
-static const uint8_t i_beta_table[52+12*2] =
-{
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 2, 2, 2, 3,
- 3, 3, 3, 4, 4, 4, 6, 6, 7, 7,
- 8, 8, 9, 9, 10, 10, 11, 11, 12, 12,
- 13, 13, 14, 14, 15, 15, 16, 16, 17, 17,
- 18, 18,
- 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
-};
-static const int8_t i_tc0_table[52+12*2][4] =
-{
- {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
- {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
- {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
- {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 },
- {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 0 }, {-1, 0, 0, 1 },
- {-1, 0, 0, 1 }, {-1, 0, 0, 1 }, {-1, 0, 0, 1 }, {-1, 0, 1, 1 }, {-1, 0, 1, 1 }, {-1, 1, 1, 1 },
- {-1, 1, 1, 1 }, {-1, 1, 1, 1 }, {-1, 1, 1, 1 }, {-1, 1, 1, 2 }, {-1, 1, 1, 2 }, {-1, 1, 1, 2 },
- {-1, 1, 1, 2 }, {-1, 1, 2, 3 }, {-1, 1, 2, 3 }, {-1, 2, 2, 3 }, {-1, 2, 2, 4 }, {-1, 2, 3, 4 },
- {-1, 2, 3, 4 }, {-1, 3, 3, 5 }, {-1, 3, 4, 6 }, {-1, 3, 4, 6 }, {-1, 4, 5, 7 }, {-1, 4, 5, 8 },
- {-1, 4, 6, 9 }, {-1, 5, 7,10 }, {-1, 6, 8,11 }, {-1, 6, 8,13 }, {-1, 7,10,14 }, {-1, 8,11,16 },
- {-1, 9,12,18 }, {-1,10,13,20 }, {-1,11,15,23 }, {-1,13,17,25 },
- {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
- {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 }, {-1,13,17,25 },
-};
-#define alpha_table(x) i_alpha_table[(x)+12]
-#define beta_table(x) i_beta_table[(x)+12]
-#define tc0_table(x) i_tc0_table[(x)+12]
-
-/* From ffmpeg */
-static inline void deblock_luma_c( uint8_t *pix, int xstride, int ystride, int alpha, int beta, int8_t *tc0 )
-{
- int i, d;
- for( i = 0; i < 4; i++ )
- {
- if( tc0[i] < 0 )
- {
- pix += 4*ystride;
- continue;
- }
- for( d = 0; d < 4; d++ )
- {
- const int p2 = pix[-3*xstride];
- const int p1 = pix[-2*xstride];
- const int p0 = pix[-1*xstride];
- const int q0 = pix[ 0*xstride];
- const int q1 = pix[ 1*xstride];
- const int q2 = pix[ 2*xstride];
-
- if( abs( p0 - q0 ) < alpha && abs( p1 - p0 ) < beta && abs( q1 - q0 ) < beta )
- {
- int tc = tc0[i];
- int delta;
- if( abs( p2 - p0 ) < beta )
- {
- pix[-2*xstride] = p1 + x264_clip3( (( p2 + ((p0 + q0 + 1) >> 1)) >> 1) - p1, -tc0[i], tc0[i] );
- tc++;
- }
- if( abs( q2 - q0 ) < beta )
- {
- pix[ 1*xstride] = q1 + x264_clip3( (( q2 + ((p0 + q0 + 1) >> 1)) >> 1) - q1, -tc0[i], tc0[i] );
- tc++;
- }
-
- delta = x264_clip3( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
- pix[-1*xstride] = x264_clip_uint8( p0 + delta ); /* p0' */
- pix[ 0*xstride] = x264_clip_uint8( q0 - delta ); /* q0' */
- }
- pix += ystride;
- }
- }
-}
-static void deblock_v_luma_c( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 )
-{
- deblock_luma_c( pix, stride, 1, alpha, beta, tc0 );
-}
-static void deblock_h_luma_c( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 )
-{
- deblock_luma_c( pix, 1, stride, alpha, beta, tc0 );
-}
-
-static inline void deblock_chroma_c( uint8_t *pix, int xstride, int ystride, int alpha, int beta, int8_t *tc0 )
-{
- int i, d;
- for( i = 0; i < 4; i++ )
- {
- const int tc = tc0[i];
- if( tc <= 0 )
- {
- pix += 2*ystride;
- continue;
- }
- for( d = 0; d < 2; d++ )
- {
- const int p1 = pix[-2*xstride];
- const int p0 = pix[-1*xstride];
- const int q0 = pix[ 0*xstride];
- const int q1 = pix[ 1*xstride];
-
- if( abs( p0 - q0 ) < alpha && abs( p1 - p0 ) < beta && abs( q1 - q0 ) < beta )
- {
- int delta = x264_clip3( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
- pix[-1*xstride] = x264_clip_uint8( p0 + delta ); /* p0' */
- pix[ 0*xstride] = x264_clip_uint8( q0 - delta ); /* q0' */
- }
- pix += ystride;
- }
- }
-}
-static void deblock_v_chroma_c( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 )
-{
- deblock_chroma_c( pix, stride, 1, alpha, beta, tc0 );
-}
-static void deblock_h_chroma_c( uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0 )
-{
- deblock_chroma_c( pix, 1, stride, alpha, beta, tc0 );
-}
-
-static inline void deblock_luma_intra_c( uint8_t *pix, int xstride, int ystride, int alpha, int beta )
-{
- int d;
- for( d = 0; d < 16; d++ )
- {
- const int p2 = pix[-3*xstride];
- const int p1 = pix[-2*xstride];
- const int p0 = pix[-1*xstride];
- const int q0 = pix[ 0*xstride];
- const int q1 = pix[ 1*xstride];
- const int q2 = pix[ 2*xstride];
-
- if( abs( p0 - q0 ) < alpha && abs( p1 - p0 ) < beta && abs( q1 - q0 ) < beta )
- {
- if(abs( p0 - q0 ) < ((alpha >> 2) + 2) )
- {
- if( abs( p2 - p0 ) < beta ) /* p0', p1', p2' */
- {
- const int p3 = pix[-4*xstride];
- pix[-1*xstride] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3;
- pix[-2*xstride] = ( p2 + p1 + p0 + q0 + 2 ) >> 2;
- pix[-3*xstride] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3;
- }
- else /* p0' */
- pix[-1*xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
- if( abs( q2 - q0 ) < beta ) /* q0', q1', q2' */
- {
- const int q3 = pix[3*xstride];
- pix[0*xstride] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3;
- pix[1*xstride] = ( p0 + q0 + q1 + q2 + 2 ) >> 2;
- pix[2*xstride] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3;
- }
- else /* q0' */
- pix[0*xstride] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
- }
- else /* p0', q0' */
- {
- pix[-1*xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
- pix[ 0*xstride] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
- }
- }
- pix += ystride;
- }
-}
-static void deblock_v_luma_intra_c( uint8_t *pix, int stride, int alpha, int beta )
-{
- deblock_luma_intra_c( pix, stride, 1, alpha, beta );
-}
-static void deblock_h_luma_intra_c( uint8_t *pix, int stride, int alpha, int beta )
-{
- deblock_luma_intra_c( pix, 1, stride, alpha, beta );
-}
-
-static inline void deblock_chroma_intra_c( uint8_t *pix, int xstride, int ystride, int alpha, int beta )
-{
- int d;
- for( d = 0; d < 8; d++ )
- {
- const int p1 = pix[-2*xstride];
- const int p0 = pix[-1*xstride];
- const int q0 = pix[ 0*xstride];
- const int q1 = pix[ 1*xstride];
-
- if( abs( p0 - q0 ) < alpha && abs( p1 - p0 ) < beta && abs( q1 - q0 ) < beta )
- {
- pix[-1*xstride] = (2*p1 + p0 + q1 + 2) >> 2; /* p0' */
- pix[ 0*xstride] = (2*q1 + q0 + p1 + 2) >> 2; /* q0' */
- }
- pix += ystride;
- }
-}
-static void deblock_v_chroma_intra_c( uint8_t *pix, int stride, int alpha, int beta )
-{
- deblock_chroma_intra_c( pix, stride, 1, alpha, beta );
-}
-static void deblock_h_chroma_intra_c( uint8_t *pix, int stride, int alpha, int beta )
-{
- deblock_chroma_intra_c( pix, 1, stride, alpha, beta );
-}
-
-static inline void deblock_edge( x264_t *h, uint8_t *pix1, uint8_t *pix2, int i_stride, uint8_t bS[4], int i_qp, int b_chroma, x264_deblock_inter_t pf_inter )
-{
- const int index_a = i_qp + h->sh.i_alpha_c0_offset;
- const int alpha = alpha_table(index_a);
- const int beta = beta_table(i_qp + h->sh.i_beta_offset);
- int8_t tc[4];
-
- if( !alpha || !beta )
- return;
-
- tc[0] = tc0_table(index_a)[bS[0]] + b_chroma;
- tc[1] = tc0_table(index_a)[bS[1]] + b_chroma;
- tc[2] = tc0_table(index_a)[bS[2]] + b_chroma;
- tc[3] = tc0_table(index_a)[bS[3]] + b_chroma;
-
- pf_inter( pix1, i_stride, alpha, beta, tc );
- if( b_chroma )
- pf_inter( pix2, i_stride, alpha, beta, tc );
-}
-
-static inline void deblock_edge_intra( x264_t *h, uint8_t *pix1, uint8_t *pix2, int i_stride, uint8_t bS[4], int i_qp, int b_chroma, x264_deblock_intra_t pf_intra )
-{
- const int alpha = alpha_table(i_qp + h->sh.i_alpha_c0_offset);
- const int beta = beta_table(i_qp + h->sh.i_beta_offset);
-
- if( !alpha || !beta )
- return;
-
- pf_intra( pix1, i_stride, alpha, beta );
- if( b_chroma )
- pf_intra( pix2, i_stride, alpha, beta );
-}
-
-void x264_frame_deblock_row( x264_t *h, int mb_y )
-{
- const int s8x8 = 2 * h->mb.i_mb_stride;
- const int s4x4 = 4 * h->mb.i_mb_stride;
- const int b_interlaced = h->sh.b_mbaff;
- const int mvy_limit = 4 >> b_interlaced;
- const int qp_thresh = 15 - X264_MIN(h->sh.i_alpha_c0_offset, h->sh.i_beta_offset) - X264_MAX(0, h->param.analyse.i_chroma_qp_offset);
- int mb_x;
- int stridey = h->fdec->i_stride[0];
- int stride2y = stridey << b_interlaced;
- int strideuv = h->fdec->i_stride[1];
- int stride2uv = strideuv << b_interlaced;
-
- if( !h->pps->b_cabac && h->pps->b_transform_8x8_mode )
- munge_cavlc_nnz( h, mb_y, h->mb.nnz_backup, munge_cavlc_nnz_row );
-
- for( mb_x = 0; mb_x < h->sps->i_mb_width; mb_x += (~b_interlaced | mb_y)&1, mb_y ^= b_interlaced )
- {
- const int mb_xy = mb_y * h->mb.i_mb_stride + mb_x;
- const int mb_8x8 = 2 * s8x8 * mb_y + 2 * mb_x;
- const int mb_4x4 = 4 * s4x4 * mb_y + 4 * mb_x;
- const int b_8x8_transform = h->mb.mb_transform_size[mb_xy];
- const int i_qp = h->mb.qp[mb_xy];
- int i_edge_end = (h->mb.type[mb_xy] == P_SKIP) ? 1 : 4;
- int no_sub8x8 = h->mb.type[mb_xy] != P_8x8 || !(h->param.analyse.inter & X264_ANALYSE_PSUB8x8);
- uint8_t *pixy = h->fdec->plane[0] + 16*mb_y*stridey + 16*mb_x;
- uint8_t *pixu = h->fdec->plane[1] + 8*mb_y*strideuv + 8*mb_x;
- uint8_t *pixv = h->fdec->plane[2] + 8*mb_y*strideuv + 8*mb_x;
- if( b_interlaced && (mb_y&1) )
- {
- pixy -= 15*stridey;
- pixu -= 7*strideuv;
- pixv -= 7*strideuv;
- }
-
- x264_prefetch_fenc( h, h->fdec, mb_x, mb_y );
-
- if( i_qp <= qp_thresh )
- i_edge_end = 1;
-
- #define FILTER_DIR(intra, i_dir)\
- {\
- /* Y plane */\
- i_qpn= h->mb.qp[mbn_xy];\
- if( i_dir == 0 )\
- {\
- /* vertical edge */\
- deblock_edge##intra( h, pixy + 4*i_edge, NULL,\
- stride2y, bS, (i_qp+i_qpn+1) >> 1, 0,\
- h->loopf.deblock_h_luma##intra );\
- if( !(i_edge & 1) )\
- {\
- /* U/V planes */\
- int i_qpc = (h->chroma_qp_table[i_qp] + h->chroma_qp_table[i_qpn] + 1) >> 1;\
- deblock_edge##intra( h, pixu + 2*i_edge, pixv + 2*i_edge,\
- stride2uv, bS, i_qpc, 1,\
- h->loopf.deblock_h_chroma##intra );\
- }\
- }\
- else\
- {\
- /* horizontal edge */\
- deblock_edge##intra( h, pixy + 4*i_edge*stride2y, NULL,\
- stride2y, bS, (i_qp+i_qpn+1) >> 1, 0,\
- h->loopf.deblock_v_luma##intra );\
- /* U/V planes */\
- if( !(i_edge & 1) )\
- {\
- int i_qpc = (h->chroma_qp_table[i_qp] + h->chroma_qp_table[i_qpn] + 1) >> 1;\
- deblock_edge##intra( h, pixu + 2*i_edge*stride2uv, pixv + 2*i_edge*stride2uv,\
- stride2uv, bS, i_qpc, 1,\
- h->loopf.deblock_v_chroma##intra );\
- }\
- }\
- }
-
- #define DEBLOCK_STRENGTH(i_dir)\
- {\
- /* *** Get bS for each 4px for the current edge *** */\
- if( IS_INTRA( h->mb.type[mb_xy] ) || IS_INTRA( h->mb.type[mbn_xy]) )\
- *(uint32_t*)bS = 0x03030303;\
- else\
- {\
- *(uint32_t*)bS = 0x00000000;\
- for( i = 0; i < 4; i++ )\
- {\
- int x = i_dir == 0 ? i_edge : i;\
- int y = i_dir == 0 ? i : i_edge;\
- int xn = i_dir == 0 ? (x - 1)&0x03 : x;\
- int yn = i_dir == 0 ? y : (y - 1)&0x03;\
- if( h->mb.non_zero_count[mb_xy][x+y*4] != 0 ||\
- h->mb.non_zero_count[mbn_xy][xn+yn*4] != 0 )\
- bS[i] = 2;\
- else if(!(i_edge&no_sub8x8))\
- {\
- if((i&no_sub8x8) && bS[i-1] != 2)\
- bS[i] = bS[i-1];\
- else\
- {\
- /* FIXME: A given frame may occupy more than one position in\
- * the reference list. So we should compare the frame numbers,\
- * not the indices in the ref list.\
- * No harm yet, as we don't generate that case.*/\
- int i8p= mb_8x8+(x>>1)+(y>>1)*s8x8;\
- int i8q= mbn_8x8+(xn>>1)+(yn>>1)*s8x8;\
- int i4p= mb_4x4+x+y*s4x4;\
- int i4q= mbn_4x4+xn+yn*s4x4;\
- if((h->mb.ref[0][i8p] != h->mb.ref[0][i8q] ||\
- abs( h->mb.mv[0][i4p][0] - h->mb.mv[0][i4q][0] ) >= 4 ||\
- abs( h->mb.mv[0][i4p][1] - h->mb.mv[0][i4q][1] ) >= mvy_limit ) ||\
- (h->sh.i_type == SLICE_TYPE_B &&\
- (h->mb.ref[1][i8p] != h->mb.ref[1][i8q] ||\
- abs( h->mb.mv[1][i4p][0] - h->mb.mv[1][i4q][0] ) >= 4 ||\
- abs( h->mb.mv[1][i4p][1] - h->mb.mv[1][i4q][1] ) >= mvy_limit )))\
- {\
- bS[i] = 1;\
- }\
- }\
- }\
- }\
- }\