/*****************************************************************************
- * macroblock.c: h264 encoder library
+ * macroblock.c: macroblock encoding
*****************************************************************************
- * Copyright (C) 2003 Laurent Aimar
- * $Id: macroblock.c,v 1.1 2004/06/03 19:27:08 fenrir Exp $
+ * Copyright (C) 2003-2016 x264 project
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
+ * Loren Merritt <lorenm@u.washington.edu>
+ * Fiona Glaser <fiona@x264.com>
+ * Henrik Gramner <henrik@gramner.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
+ *
+ * This program is also available under a commercial proprietary license.
+ * For more information, contact us at licensing@x264.com.
*****************************************************************************/
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
#include "common/common.h"
#include "macroblock.h"
+/* These chroma DC functions don't have assembly versions and are only used here. */
-static const uint8_t block_idx_x[16] =
-{
- 0, 1, 0, 1, 2, 3, 2, 3, 0, 1, 0, 1, 2, 3, 2, 3
-};
-static const uint8_t block_idx_y[16] =
-{
- 0, 0, 1, 1, 0, 0, 1, 1, 2, 2, 3, 3, 2, 2, 3, 3
-};
-static const uint8_t block_idx_xy[4][4] =
-{
- { 0, 2, 8, 10 },
- { 1, 3, 9, 11 },
- { 4, 6, 12, 14 },
- { 5, 7, 13, 15 }
-};
-
-/* def_quant4_mf only for probe_skip; actual encoding uses matrices from set.c */
-/* FIXME this seems to make better decisions with cqm=jvt, but could screw up
- * with general custom matrices. */
-static const int def_quant4_mf[6][4][4] =
-{
- { { 13107, 8066, 13107, 8066 }, { 8066, 5243, 8066, 5243 },
- { 13107, 8066, 13107, 8066 }, { 8066, 5243, 8066, 5243 } },
- { { 11916, 7490, 11916, 7490 }, { 7490, 4660, 7490, 4660 },
- { 11916, 7490, 11916, 7490 }, { 7490, 4660, 7490, 4660 } },
- { { 10082, 6554, 10082, 6554 }, { 6554, 4194, 6554, 4194 },
- { 10082, 6554, 10082, 6554 }, { 6554, 4194, 6554, 4194 } },
- { { 9362, 5825, 9362, 5825 }, { 5825, 3647, 5825, 3647 },
- { 9362, 5825, 9362, 5825 }, { 5825, 3647, 5825, 3647 } },
- { { 8192, 5243, 8192, 5243 }, { 5243, 3355, 5243, 3355 },
- { 8192, 5243, 8192, 5243 }, { 5243, 3355, 5243, 3355 } },
- { { 7282, 4559, 7282, 4559 }, { 4559, 2893, 4559, 2893 },
- { 7282, 4559, 7282, 4559 }, { 4559, 2893, 4559, 2893 } }
-};
-
-static const int i_chroma_qp_table[52] =
-{
- 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
- 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
- 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
- 29, 30, 31, 32, 32, 33, 34, 34, 35, 35,
- 36, 36, 37, 37, 37, 38, 38, 38, 39, 39,
- 39, 39
-};
-
-/****************************************************************************
- * Scan and Quant functions
- ****************************************************************************/
-//static const int scan_zigzag_x[16]={0, 1, 0, 0, 1, 2, 3, 2, 1, 0, 1, 2, 3, 3, 2, 3};
-//static const int scan_zigzag_y[16]={0, 0, 1, 2, 1, 0, 0, 1, 2, 3, 3, 2, 1, 2, 3, 3};
-
-#define ZIG(i,y,x) level[i] = dct[y][x];
-static inline void scan_zigzag_8x8full( int level[64], int16_t dct[8][8] )
-{
- ZIG( 0,0,0) ZIG( 1,0,1) ZIG( 2,1,0) ZIG( 3,2,0)
- ZIG( 4,1,1) ZIG( 5,0,2) ZIG( 6,0,3) ZIG( 7,1,2)
- ZIG( 8,2,1) ZIG( 9,3,0) ZIG(10,4,0) ZIG(11,3,1)
- ZIG(12,2,2) ZIG(13,1,3) ZIG(14,0,4) ZIG(15,0,5)
- ZIG(16,1,4) ZIG(17,2,3) ZIG(18,3,2) ZIG(19,4,1)
- ZIG(20,5,0) ZIG(21,6,0) ZIG(22,5,1) ZIG(23,4,2)
- ZIG(24,3,3) ZIG(25,2,4) ZIG(26,1,5) ZIG(27,0,6)
- ZIG(28,0,7) ZIG(29,1,6) ZIG(30,2,5) ZIG(31,3,4)
- ZIG(32,4,3) ZIG(33,5,2) ZIG(34,6,1) ZIG(35,7,0)
- ZIG(36,7,1) ZIG(37,6,2) ZIG(38,5,3) ZIG(39,4,4)
- ZIG(40,3,5) ZIG(41,2,6) ZIG(42,1,7) ZIG(43,2,7)
- ZIG(44,3,6) ZIG(45,4,5) ZIG(46,5,4) ZIG(47,6,3)
- ZIG(48,7,2) ZIG(49,7,3) ZIG(50,6,4) ZIG(51,5,5)
- ZIG(52,4,6) ZIG(53,3,7) ZIG(54,4,7) ZIG(55,5,6)
- ZIG(56,6,5) ZIG(57,7,4) ZIG(58,7,5) ZIG(59,6,6)
- ZIG(60,5,7) ZIG(61,6,7) ZIG(62,7,6) ZIG(63,7,7)
-}
-static inline void scan_zigzag_4x4full( int level[16], int16_t dct[4][4] )
-{
- ZIG( 0,0,0) ZIG( 1,0,1) ZIG( 2,1,0) ZIG( 3,2,0)
- ZIG( 4,1,1) ZIG( 5,0,2) ZIG( 6,0,3) ZIG( 7,1,2)
- ZIG( 8,2,1) ZIG( 9,3,0) ZIG(10,3,1) ZIG(11,2,2)
- ZIG(12,1,3) ZIG(13,2,3) ZIG(14,3,2) ZIG(15,3,3)
-}
-static inline void scan_zigzag_4x4( int level[15], int16_t dct[4][4] )
-{
- ZIG( 0,0,1) ZIG( 1,1,0) ZIG( 2,2,0)
- ZIG( 3,1,1) ZIG( 4,0,2) ZIG( 5,0,3) ZIG( 6,1,2)
- ZIG( 7,2,1) ZIG( 8,3,0) ZIG( 9,3,1) ZIG(10,2,2)
- ZIG(11,1,3) ZIG(12,2,3) ZIG(13,3,2) ZIG(14,3,3)
-}
-static inline void scan_zigzag_2x2_dc( int level[4], int16_t dct[2][2] )
+#define ZIG(i,y,x) level[i] = dct[x*2+y];
+static inline void zigzag_scan_2x2_dc( dctcoef level[4], dctcoef dct[4] )
{
ZIG(0,0,0)
ZIG(1,0,1)
}
#undef ZIG
-#define ZIG(i,y,x) {\
- int o = x+y*i_stride;\
- level[i] = p_src[o] - p_dst[o];\
- p_dst[o] = p_src[o];\
-}
-static inline void sub_zigzag_4x4full( int level[16], const uint8_t *p_src, uint8_t *p_dst, int i_stride )
-{
- ZIG( 0,0,0) ZIG( 1,0,1) ZIG( 2,1,0) ZIG( 3,2,0)
- ZIG( 4,1,1) ZIG( 5,0,2) ZIG( 6,0,3) ZIG( 7,1,2)
- ZIG( 8,2,1) ZIG( 9,3,0) ZIG(10,3,1) ZIG(11,2,2)
- ZIG(12,1,3) ZIG(13,2,3) ZIG(14,3,2) ZIG(15,3,3)
-}
-static inline void sub_zigzag_4x4( int level[15], const uint8_t *p_src, uint8_t *p_dst, int i_stride )
+static inline void zigzag_scan_2x4_dc( dctcoef level[8], dctcoef dct[8] )
{
- ZIG( 0,0,1) ZIG( 1,1,0) ZIG( 2,2,0)
- ZIG( 3,1,1) ZIG( 4,0,2) ZIG( 5,0,3) ZIG( 6,1,2)
- ZIG( 7,2,1) ZIG( 8,3,0) ZIG( 9,3,1) ZIG(10,2,2)
- ZIG(11,1,3) ZIG(12,2,3) ZIG(13,3,2) ZIG(14,3,3)
+ level[0] = dct[0];
+ level[1] = dct[2];
+ level[2] = dct[1];
+ level[3] = dct[4];
+ level[4] = dct[6];
+ level[5] = dct[3];
+ level[6] = dct[5];
+ level[7] = dct[7];
}
-#undef ZIG
-static void quant_8x8( x264_t *h, int16_t dct[8][8], int quant_mf[6][8][8], int i_qscale, int b_intra )
+#define IDCT_DEQUANT_2X2_START \
+ int d0 = dct[0] + dct[1]; \
+ int d1 = dct[2] + dct[3]; \
+ int d2 = dct[0] - dct[1]; \
+ int d3 = dct[2] - dct[3]; \
+ int dmf = dequant_mf[i_qp%6][0] << i_qp/6;
+
+static inline void idct_dequant_2x2_dc( dctcoef dct[4], dctcoef dct4x4[4][16], int dequant_mf[6][16], int i_qp )
{
- const int i_qbits = 16 + i_qscale / 6;
- const int i_mf = i_qscale % 6;
- const int f = ( 1 << i_qbits ) / ( b_intra ? 3 : 6 );
- h->quantf.quant_8x8_core( dct, quant_mf[i_mf], i_qbits, f );
+ IDCT_DEQUANT_2X2_START
+ dct4x4[0][0] = (d0 + d1) * dmf >> 5;
+ dct4x4[1][0] = (d0 - d1) * dmf >> 5;
+ dct4x4[2][0] = (d2 + d3) * dmf >> 5;
+ dct4x4[3][0] = (d2 - d3) * dmf >> 5;
}
-static void quant_4x4( x264_t *h, int16_t dct[4][4], int quant_mf[6][4][4], int i_qscale, int b_intra )
+
+static inline void idct_dequant_2x2_dconly( dctcoef dct[4], int dequant_mf[6][16], int i_qp )
{
- const int i_qbits = 15 + i_qscale / 6;
- const int i_mf = i_qscale % 6;
- const int f = ( 1 << i_qbits ) / ( b_intra ? 3 : 6 );
- h->quantf.quant_4x4_core( dct, quant_mf[i_mf], i_qbits, f );
+ IDCT_DEQUANT_2X2_START
+ dct[0] = (d0 + d1) * dmf >> 5;
+ dct[1] = (d0 - d1) * dmf >> 5;
+ dct[2] = (d2 + d3) * dmf >> 5;
+ dct[3] = (d2 - d3) * dmf >> 5;
}
-static void quant_4x4_dc( x264_t *h, int16_t dct[4][4], int quant_mf[6][4][4], int i_qscale )
+#undef IDCT_2X2_DEQUANT_START
+
+static inline void dct2x2dc( dctcoef d[4], dctcoef dct4x4[4][16] )
{
- const int i_qbits = 16 + i_qscale / 6;
- const int i_mf = i_qscale % 6;
- const int f = ( 1 << i_qbits ) / 3;
- h->quantf.quant_4x4_dc_core( dct, quant_mf[i_mf][0][0], i_qbits, f );
+ int d0 = dct4x4[0][0] + dct4x4[1][0];
+ int d1 = dct4x4[2][0] + dct4x4[3][0];
+ int d2 = dct4x4[0][0] - dct4x4[1][0];
+ int d3 = dct4x4[2][0] - dct4x4[3][0];
+ d[0] = d0 + d1;
+ d[2] = d2 + d3;
+ d[1] = d0 - d1;
+ d[3] = d2 - d3;
+ dct4x4[0][0] = 0;
+ dct4x4[1][0] = 0;
+ dct4x4[2][0] = 0;
+ dct4x4[3][0] = 0;
}
-static void quant_2x2_dc( x264_t *h, int16_t dct[2][2], int quant_mf[6][4][4], int i_qscale, int b_intra )
+
+static ALWAYS_INLINE int array_non_zero( dctcoef *v, int i_count )
{
- const int i_qbits = 16 + i_qscale / 6;
- const int i_mf = i_qscale % 6;
- const int f = ( 1 << i_qbits ) / ( b_intra ? 3 : 6 );
- h->quantf.quant_2x2_dc_core( dct, quant_mf[i_mf][0][0], i_qbits, f );
+ if( WORD_SIZE == 8 )
+ {
+ for( int i = 0; i < i_count; i += 8/sizeof(dctcoef) )
+ if( M64( &v[i] ) )
+ return 1;
+ }
+ else
+ {
+ for( int i = 0; i < i_count; i += 4/sizeof(dctcoef) )
+ if( M32( &v[i] ) )
+ return 1;
+ }
+ return 0;
}
-#if 0
-/* From a JVT doc */
-static const int f_deadzone_intra[4][4][2] = /* [num][den] */
-{
- { {1,2}, {3,7}, {2,5}, {1,3} },
- { {3,7}, {2,5}, {1,3}, {1,4} },
- { {2,5}, {1,3}, {1,4}, {1,5} },
- { {1,3}, {1,4}, {1,5}, {1,5} }
-};
-static const int f_deadzone_inter[4][4][2] = /* [num][den] */
-{
- { {1,3}, {2,7}, {4,15},{2,9} },
- { {2,7}, {4,15},{2,9}, {1,6} },
- { {4,15},{2,9}, {1,6}, {1,7} },
- { {2,9}, {1,6}, {1,7}, {2,15} }
-};
+/* All encoding functions must output the correct CBP and NNZ values.
+ * The entropy coding functions will check CBP first, then NNZ, before
+ * actually reading the DCT coefficients. NNZ still must be correct even
+ * if CBP is zero because of the use of NNZ values for context selection.
+ * "NNZ" need only be 0 or 1 rather than the exact coefficient count because
+ * that is only needed in CAVLC, and will be calculated by CAVLC's residual
+ * coding and stored as necessary. */
+/* This means that decimation can be done merely by adjusting the CBP and NNZ
+ * rather than memsetting the coefficients. */
-static void quant_4x4( int16_t dct[4][4], int i_qscale, int b_intra )
+static void x264_mb_encode_i16x16( x264_t *h, int p, int i_qp )
{
- const int(*f_deadzone)[4][4][2] = b_intra ? &f_deadzone_intra : &f_deadzone_inter;
- const int i_qbits = 15 + i_qscale / 6;
- const int i_mf = i_qscale % 6;
+ pixel *p_src = h->mb.pic.p_fenc[p];
+ pixel *p_dst = h->mb.pic.p_fdec[p];
+
+ ALIGNED_ARRAY_N( dctcoef, dct4x4,[16],[16] );
+ ALIGNED_ARRAY_N( dctcoef, dct_dc4x4,[16] );
- int x,y;
- for( y = 0; y < 4; y++ )
+ int nz, block_cbp = 0;
+ int decimate_score = h->mb.b_dct_decimate ? 0 : 9;
+ int i_quant_cat = p ? CQM_4IC : CQM_4IY;
+ int i_mode = h->mb.i_intra16x16_pred_mode;
+
+ if( h->mb.b_lossless )
+ x264_predict_lossless_16x16( h, p, i_mode );
+ else
+ h->predict_16x16[i_mode]( h->mb.pic.p_fdec[p] );
+
+ if( h->mb.b_lossless )
{
- for( x = 0; x < 4; x++ )
- {
-#if 0
- const int f = b_intra ?
- (f_deadzone_intra[y][x][0] * ( 1 << i_qbits ) / f_deadzone_intra[y][x][1])
- :
- (f_deadzone_inter[y][x][0] * ( 1 << i_qbits ) / f_deadzone_inter[y][x][1]);
-#else
- const int f = (*f_deadzone)[y][x][0] * ( 1 << i_qbits ) / (*f_deadzone)[y][x][1];
-#endif
-
- if( dct[y][x] > 0 )
- {
- dct[y][x] =( f + dct[y][x] * quant_mf[i_mf][y][x] ) >> i_qbits;
- }
- else
- {
- dct[y][x] = - ( ( f - dct[y][x] * quant_mf[i_mf][y][x] ) >> i_qbits );
- }
+ for( int i = 0; i < 16; i++ )
+ {
+ int oe = block_idx_xy_fenc[i];
+ int od = block_idx_xy_fdec[i];
+ nz = h->zigzagf.sub_4x4ac( h->dct.luma4x4[16*p+i], p_src+oe, p_dst+od, &dct_dc4x4[block_idx_yx_1d[i]] );
+ h->mb.cache.non_zero_count[x264_scan8[16*p+i]] = nz;
+ block_cbp |= nz;
}
+ h->mb.i_cbp_luma |= block_cbp * 0xf;
+ h->mb.cache.non_zero_count[x264_scan8[LUMA_DC+p]] = array_non_zero( dct_dc4x4, 16 );
+ h->zigzagf.scan_4x4( h->dct.luma16x16_dc[p], dct_dc4x4 );
+ return;
}
-}
-static void quant_4x4_dc( int16_t dct[4][4], int i_qscale )
-{
- const int i_qbits = 15 + i_qscale / 6;
- const int i_qmf = quant_mf[i_qscale%6][0][0];
- const int f2 = f_deadzone_intra[0][0][0] * ( 2 << i_qbits ) / f_deadzone_intra[0][0][1];
- int x,y;
+ CLEAR_16x16_NNZ( p );
+
+ h->dctf.sub16x16_dct( dct4x4, p_src, p_dst );
+
+ if( h->mb.b_noise_reduction )
+ for( int idx = 0; idx < 16; idx++ )
+ h->quantf.denoise_dct( dct4x4[idx], h->nr_residual_sum[0], h->nr_offset[0], 16 );
- for( y = 0; y < 4; y++ )
+ for( int idx = 0; idx < 16; idx++ )
{
- for( x = 0; x < 4; x++ )
- {
+ dct_dc4x4[block_idx_xy_1d[idx]] = dct4x4[idx][0];
+ dct4x4[idx][0] = 0;
+ }
- if( dct[y][x] > 0 )
- {
- dct[y][x] =( f2 + dct[y][x] * i_qmf) >> ( 1 + i_qbits );
- }
- else
+ if( h->mb.b_trellis )
+ {
+ for( int idx = 0; idx < 16; idx++ )
+ if( x264_quant_4x4_trellis( h, dct4x4[idx], i_quant_cat, i_qp, ctx_cat_plane[DCT_LUMA_AC][p], 1, !!p, idx ) )
{
- dct[y][x] = - ( ( f2 - dct[y][x] * i_qmf ) >> (1 + i_qbits ) );
+ block_cbp = 0xf;
+ h->zigzagf.scan_4x4( h->dct.luma4x4[16*p+idx], dct4x4[idx] );
+ h->quantf.dequant_4x4( dct4x4[idx], h->dequant4_mf[i_quant_cat], i_qp );
+ if( decimate_score < 6 ) decimate_score += h->quantf.decimate_score15( h->dct.luma4x4[16*p+idx] );
+ h->mb.cache.non_zero_count[x264_scan8[16*p+idx]] = 1;
}
- }
}
-}
-
-static void quant_2x2_dc( int16_t dct[2][2], int i_qscale, int b_intra )
-{
- int const i_qbits = 15 + i_qscale / 6;
- const int i_qmf = quant_mf[i_qscale%6][0][0];
- const int f2 = b_intra ?
- (f_deadzone_intra[0][0][0] * ( 2 << i_qbits ) / f_deadzone_intra[0][0][1])
- :
- (f_deadzone_inter[0][0][0] * ( 2 << i_qbits ) / f_deadzone_inter[0][0][1]);
- int x,y;
- for( y = 0; y < 2; y++ )
+ else
{
- for( x = 0; x < 2; x++ )
+ for( int i8x8 = 0; i8x8 < 4; i8x8++ )
{
- if( dct[y][x] > 0 )
- {
- dct[y][x] =( f2 + dct[y][x] * i_qmf) >> ( 1 + i_qbits );
- }
- else
+ nz = h->quantf.quant_4x4x4( &dct4x4[i8x8*4], h->quant4_mf[i_quant_cat][i_qp], h->quant4_bias[i_quant_cat][i_qp] );
+ if( nz )
{
- dct[y][x] = - ( ( f2 - dct[y][x] * i_qmf ) >> (1 + i_qbits ) );
+ block_cbp = 0xf;
+ FOREACH_BIT( idx, i8x8*4, nz )
+ {
+ h->zigzagf.scan_4x4( h->dct.luma4x4[16*p+idx], dct4x4[idx] );
+ h->quantf.dequant_4x4( dct4x4[idx], h->dequant4_mf[i_quant_cat], i_qp );
+ if( decimate_score < 6 ) decimate_score += h->quantf.decimate_score15( h->dct.luma4x4[16*p+idx] );
+ h->mb.cache.non_zero_count[x264_scan8[16*p+idx]] = 1;
+ }
}
}
}
-}
+ /* Writing the 16 CBFs in an i16x16 block is quite costly, so decimation can save many bits. */
+ /* More useful with CAVLC, but still useful with CABAC. */
+ if( decimate_score < 6 )
+ {
+ CLEAR_16x16_NNZ( p );
+ block_cbp = 0;
+ }
+ else
+ h->mb.i_cbp_luma |= block_cbp;
-#endif
+ h->dctf.dct4x4dc( dct_dc4x4 );
+ if( h->mb.b_trellis )
+ nz = x264_quant_luma_dc_trellis( h, dct_dc4x4, i_quant_cat, i_qp, ctx_cat_plane[DCT_LUMA_DC][p], 1, LUMA_DC+p );
+ else
+ nz = h->quantf.quant_4x4_dc( dct_dc4x4, h->quant4_mf[i_quant_cat][i_qp][0]>>1, h->quant4_bias[i_quant_cat][i_qp][0]<<1 );
-/* (ref: JVT-B118)
- * x264_mb_decimate_score: given dct coeffs it returns a score to see if we could empty this dct coeffs
- * to 0 (low score means set it to null)
- * Used in inter macroblock (luma and chroma)
- * luma: for a 8x8 block: if score < 4 -> null
- * for the complete mb: if score < 6 -> null
- * chroma: for the complete mb: if score < 7 -> null
- */
-static int x264_mb_decimate_score( int *dct, int i_max )
-{
- static const int i_ds_table4[16] = {
- 3,2,2,1,1,1,0,0,0,0,0,0,0,0,0,0 };
- static const int i_ds_table8[64] = {
- 3,3,3,3,2,2,2,2,2,2,2,2,1,1,1,1,
- 1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
-
- const int *ds_table = (i_max == 64) ? i_ds_table8 : i_ds_table4;
- int i_score = 0;
- int idx = i_max - 1;
-
- while( idx >= 0 && dct[idx] == 0 )
- idx--;
-
- while( idx >= 0 )
+ h->mb.cache.non_zero_count[x264_scan8[LUMA_DC+p]] = nz;
+ if( nz )
{
- int i_run;
-
- if( abs( dct[idx--] ) > 1 )
- return 9;
+ h->zigzagf.scan_4x4( h->dct.luma16x16_dc[p], dct_dc4x4 );
- i_run = 0;
- while( idx >= 0 && dct[idx] == 0 )
- {
- idx--;
- i_run++;
- }
- i_score += ds_table[i_run];
+ /* output samples to fdec */
+ h->dctf.idct4x4dc( dct_dc4x4 );
+ h->quantf.dequant_4x4_dc( dct_dc4x4, h->dequant4_mf[i_quant_cat], i_qp ); /* XXX not inversed */
+ if( block_cbp )
+ for( int i = 0; i < 16; i++ )
+ dct4x4[i][0] = dct_dc4x4[block_idx_xy_1d[i]];
}
- return i_score;
+ /* put pixels to fdec */
+ if( block_cbp )
+ h->dctf.add16x16_idct( p_dst, dct4x4 );
+ else if( nz )
+ h->dctf.add16x16_idct_dc( p_dst, dct_dc4x4 );
}
-void x264_mb_encode_i4x4( x264_t *h, int idx, int i_qscale )
+/* Round down coefficients losslessly in DC-only chroma blocks.
+ * Unlike luma blocks, this can't be done with a lookup table or
+ * other shortcut technique because of the interdependencies
+ * between the coefficients due to the chroma DC transform. */
+static ALWAYS_INLINE int x264_mb_optimize_chroma_dc( x264_t *h, dctcoef *dct_dc, int dequant_mf[6][16], int i_qp, int chroma422 )
{
- const int i_stride = h->mb.pic.i_stride[0];
- const int i_offset = 4 * block_idx_x[idx] + 4 * block_idx_y[idx] * i_stride;
- uint8_t *p_src = &h->mb.pic.p_fenc[0][i_offset];
- uint8_t *p_dst = &h->mb.pic.p_fdec[0][i_offset];
- int16_t dct4x4[4][4];
+ int dmf = dequant_mf[i_qp%6][0] << i_qp/6;
- if( h->mb.b_lossless )
- {
- sub_zigzag_4x4full( h->dct.block[idx].luma4x4, p_src, p_dst, i_stride );
- return;
- }
+ /* If the QP is too high, there's no benefit to rounding optimization. */
+ if( dmf > 32*64 )
+ return 1;
- h->dctf.sub4x4_dct( dct4x4, p_src, i_stride, p_dst, i_stride );
- quant_4x4( h, dct4x4, h->quant4_mf[CQM_4IY], i_qscale, 1 );
- scan_zigzag_4x4full( h->dct.block[idx].luma4x4, dct4x4 );
- x264_mb_dequant_4x4( dct4x4, h->dequant4_mf[CQM_4IY], i_qscale );
-
- /* output samples to fdec */
- h->dctf.add4x4_idct( p_dst, i_stride, dct4x4 );
-}
-
-void x264_mb_encode_i8x8( x264_t *h, int idx, int i_qscale )
-{
- const int i_stride = h->mb.pic.i_stride[0];
- const int i_offset = 8 * (idx&1) + 8 * (idx>>1) * i_stride;
- uint8_t *p_src = &h->mb.pic.p_fenc[0][i_offset];
- uint8_t *p_dst = &h->mb.pic.p_fdec[0][i_offset];
- int16_t dct8x8[8][8];
-
- h->dctf.sub8x8_dct8( dct8x8, p_src, i_stride, p_dst, i_stride );
- quant_8x8( h, dct8x8, h->quant8_mf[CQM_8IY], i_qscale, 1 );
- scan_zigzag_8x8full( h->dct.luma8x8[idx], dct8x8 );
- x264_mb_dequant_8x8( dct8x8, h->dequant8_mf[CQM_8IY], i_qscale );
- h->dctf.add8x8_idct8( p_dst, i_stride, dct8x8 );
+ if( chroma422 )
+ return h->quantf.optimize_chroma_2x4_dc( dct_dc, dmf );
+ else
+ return h->quantf.optimize_chroma_2x2_dc( dct_dc, dmf );
}
-static void x264_mb_encode_i16x16( x264_t *h, int i_qscale )
+static ALWAYS_INLINE void x264_mb_encode_chroma_internal( x264_t *h, int b_inter, int i_qp, int chroma422 )
{
- const int i_stride = h->mb.pic.i_stride[0];
- uint8_t *p_src = h->mb.pic.p_fenc[0];
- uint8_t *p_dst = h->mb.pic.p_fdec[0];
-
- int16_t dct4x4[16+1][4][4];
-
- int i;
-
- if( h->mb.b_lossless )
+ int nz, nz_dc;
+ int b_decimate = b_inter && h->mb.b_dct_decimate;
+ int (*dequant_mf)[16] = h->dequant4_mf[CQM_4IC + b_inter];
+ ALIGNED_ARRAY_16( dctcoef, dct_dc,[8] );
+ h->mb.i_cbp_chroma = 0;
+ h->nr_count[2] += h->mb.b_noise_reduction * 4;
+
+ M16( &h->mb.cache.non_zero_count[x264_scan8[16]] ) = 0;
+ M16( &h->mb.cache.non_zero_count[x264_scan8[18]] ) = 0;
+ M16( &h->mb.cache.non_zero_count[x264_scan8[32]] ) = 0;
+ M16( &h->mb.cache.non_zero_count[x264_scan8[34]] ) = 0;
+ if( chroma422 )
{
- for( i = 0; i < 16; i++ )
- {
- int o = block_idx_x[i]*4 + block_idx_y[i]*4*i_stride;
- sub_zigzag_4x4( h->dct.block[i].residual_ac, p_src+o, p_dst+o, i_stride );
- dct4x4[0][block_idx_y[i]][block_idx_x[i]] = p_src[o] - p_dst[o];
- p_dst[o] = p_src[o];
- }
- scan_zigzag_4x4full( h->dct.luma16x16_dc, dct4x4[0] );
- return;
+ M16( &h->mb.cache.non_zero_count[x264_scan8[24]] ) = 0;
+ M16( &h->mb.cache.non_zero_count[x264_scan8[26]] ) = 0;
+ M16( &h->mb.cache.non_zero_count[x264_scan8[40]] ) = 0;
+ M16( &h->mb.cache.non_zero_count[x264_scan8[42]] ) = 0;
}
- h->dctf.sub16x16_dct( &dct4x4[1], p_src, i_stride, p_dst, i_stride );
- for( i = 0; i < 16; i++ )
+ /* Early termination: check variance of chroma residual before encoding.
+ * Don't bother trying early termination at low QPs.
+ * Values are experimentally derived. */
+ if( b_decimate && i_qp >= (h->mb.b_trellis ? 12 : 18) && !h->mb.b_noise_reduction )
{
- /* copy dc coeff */
- dct4x4[0][block_idx_y[i]][block_idx_x[i]] = dct4x4[1+i][0][0];
-
- /* quant/scan/dequant */
- quant_4x4( h, dct4x4[1+i], h->quant4_mf[CQM_4IY], i_qscale, 1 );
- scan_zigzag_4x4( h->dct.block[i].residual_ac, dct4x4[1+i] );
- x264_mb_dequant_4x4( dct4x4[1+i], h->dequant4_mf[CQM_4IY], i_qscale );
- }
-
- h->dctf.dct4x4dc( dct4x4[0] );
- quant_4x4_dc( h, dct4x4[0], h->quant4_mf[CQM_4IY], i_qscale );
- scan_zigzag_4x4full( h->dct.luma16x16_dc, dct4x4[0] );
+ int thresh = chroma422 ? (x264_lambda2_tab[i_qp] + 16) >> 5 : (x264_lambda2_tab[i_qp] + 32) >> 6;
+ int ssd[2];
+ int chromapix = chroma422 ? PIXEL_8x16 : PIXEL_8x8;
+
+ int score = h->pixf.var2[chromapix]( h->mb.pic.p_fenc[1], FENC_STRIDE, h->mb.pic.p_fdec[1], FDEC_STRIDE, &ssd[0] );
+ if( score < thresh*4 )
+ score += h->pixf.var2[chromapix]( h->mb.pic.p_fenc[2], FENC_STRIDE, h->mb.pic.p_fdec[2], FDEC_STRIDE, &ssd[1] );
+ if( score < thresh*4 )
+ {
+ h->mb.cache.non_zero_count[x264_scan8[CHROMA_DC+0]] = 0;
+ h->mb.cache.non_zero_count[x264_scan8[CHROMA_DC+1]] = 0;
- /* output samples to fdec */
- h->dctf.idct4x4dc( dct4x4[0] );
- x264_mb_dequant_4x4_dc( dct4x4[0], h->dequant4_mf[CQM_4IY], i_qscale ); /* XXX not inversed */
+ for( int ch = 0; ch < 2; ch++ )
+ {
+ if( ssd[ch] > thresh )
+ {
+ pixel *p_src = h->mb.pic.p_fenc[1+ch];
+ pixel *p_dst = h->mb.pic.p_fdec[1+ch];
+
+ if( chroma422 )
+ /* Cannot be replaced by two calls to sub8x8_dct_dc since the hadamard transform is different */
+ h->dctf.sub8x16_dct_dc( dct_dc, p_src, p_dst );
+ else
+ h->dctf.sub8x8_dct_dc( dct_dc, p_src, p_dst );
+
+ if( h->mb.b_trellis )
+ nz_dc = x264_quant_chroma_dc_trellis( h, dct_dc, i_qp+3*chroma422, !b_inter, CHROMA_DC+ch );
+ else
+ {
+ nz_dc = 0;
+ for( int i = 0; i <= chroma422; i++ )
+ nz_dc |= h->quantf.quant_2x2_dc( &dct_dc[4*i], h->quant4_mf[CQM_4IC+b_inter][i_qp+3*chroma422][0] >> 1,
+ h->quant4_bias[CQM_4IC+b_inter][i_qp+3*chroma422][0] << 1 );
+ }
- /* calculate dct coeffs */
- for( i = 0; i < 16; i++ )
- {
- /* copy dc coeff */
- dct4x4[1+i][0][0] = dct4x4[0][block_idx_y[i]][block_idx_x[i]];
+ if( nz_dc )
+ {
+ if( !x264_mb_optimize_chroma_dc( h, dct_dc, dequant_mf, i_qp+3*chroma422, chroma422 ) )
+ continue;
+ h->mb.cache.non_zero_count[x264_scan8[CHROMA_DC+ch]] = 1;
+ if( chroma422 )
+ {
+ zigzag_scan_2x4_dc( h->dct.chroma_dc[ch], dct_dc );
+ h->quantf.idct_dequant_2x4_dconly( dct_dc, dequant_mf, i_qp+3 );
+ }
+ else
+ {
+ zigzag_scan_2x2_dc( h->dct.chroma_dc[ch], dct_dc );
+ idct_dequant_2x2_dconly( dct_dc, dequant_mf, i_qp );
+ }
+
+ for( int i = 0; i <= chroma422; i++ )
+ h->dctf.add8x8_idct_dc( p_dst + 8*i*FDEC_STRIDE, &dct_dc[4*i] );
+ h->mb.i_cbp_chroma = 1;
+ }
+ }
+ }
+ return;
+ }
}
- /* put pixels to fdec */
- h->dctf.add16x16_idct( p_dst, i_stride, &dct4x4[1] );
-}
-
-static void x264_mb_encode_8x8_chroma( x264_t *h, int b_inter, int i_qscale )
-{
- int i, ch;
- for( ch = 0; ch < 2; ch++ )
+ for( int ch = 0; ch < 2; ch++ )
{
- const int i_stride = h->mb.pic.i_stride[1+ch];
- uint8_t *p_src = h->mb.pic.p_fenc[1+ch];
- uint8_t *p_dst = h->mb.pic.p_fdec[1+ch];
- int i_decimate_score = 0;
+ pixel *p_src = h->mb.pic.p_fenc[1+ch];
+ pixel *p_dst = h->mb.pic.p_fdec[1+ch];
+ int i_decimate_score = b_decimate ? 0 : 7;
+ int nz_ac = 0;
- int16_t dct2x2[2][2];
- int16_t dct4x4[4][4][4];
+ ALIGNED_ARRAY_N( dctcoef, dct4x4,[8],[16] );
if( h->mb.b_lossless )
{
- for( i = 0; i < 4; i++ )
+ static const uint8_t chroma422_scan[8] = { 0, 2, 1, 5, 3, 6, 4, 7 };
+
+ for( int i = 0; i < (chroma422?8:4); i++ )
{
- int o = block_idx_x[i]*4 + block_idx_y[i]*4*i_stride;
- sub_zigzag_4x4( h->dct.block[16+i+ch*4].residual_ac, p_src+o, p_dst+o, i_stride );
- h->dct.chroma_dc[ch][i] = p_src[o] - p_dst[o];
- p_dst[o] = p_src[o];
+ int oe = 4*(i&1) + 4*(i>>1)*FENC_STRIDE;
+ int od = 4*(i&1) + 4*(i>>1)*FDEC_STRIDE;
+ nz = h->zigzagf.sub_4x4ac( h->dct.luma4x4[16+i+(chroma422?i&4:0)+ch*16], p_src+oe, p_dst+od,
+ &h->dct.chroma_dc[ch][chroma422?chroma422_scan[i]:i] );
+ h->mb.cache.non_zero_count[x264_scan8[16+i+(chroma422?i&4:0)+ch*16]] = nz;
+ h->mb.i_cbp_chroma |= nz;
}
+ h->mb.cache.non_zero_count[x264_scan8[CHROMA_DC+ch]] = array_non_zero( h->dct.chroma_dc[ch], chroma422?8:4 );
continue;
}
-
- h->dctf.sub8x8_dct( dct4x4, p_src, i_stride, p_dst, i_stride );
+
+ for( int i = 0; i <= chroma422; i++ )
+ h->dctf.sub8x8_dct( &dct4x4[4*i], p_src + 8*i*FENC_STRIDE, p_dst + 8*i*FDEC_STRIDE );
+
+ if( h->mb.b_noise_reduction )
+ for( int i = 0; i < (chroma422?8:4); i++ )
+ h->quantf.denoise_dct( dct4x4[i], h->nr_residual_sum[2], h->nr_offset[2], 16 );
+
+ if( chroma422 )
+ h->dctf.dct2x4dc( dct_dc, dct4x4 );
+ else
+ dct2x2dc( dct_dc, dct4x4 );
+
/* calculate dct coeffs */
- for( i = 0; i < 4; i++ )
+ for( int i8x8 = 0; i8x8 < (chroma422?2:1); i8x8++ )
{
- /* copy dc coeff */
- dct2x2[block_idx_y[i]][block_idx_x[i]] = dct4x4[i][0][0];
+ if( h->mb.b_trellis )
+ {
+ for( int i4x4 = 0; i4x4 < 4; i4x4++ )
+ {
+ if( x264_quant_4x4_trellis( h, dct4x4[i8x8*4+i4x4], CQM_4IC+b_inter, i_qp, DCT_CHROMA_AC, !b_inter, 1, 0 ) )
+ {
+ int idx = 16+ch*16+i8x8*8+i4x4;
+ h->zigzagf.scan_4x4( h->dct.luma4x4[idx], dct4x4[i8x8*4+i4x4] );
+ h->quantf.dequant_4x4( dct4x4[i8x8*4+i4x4], dequant_mf, i_qp );
+ if( i_decimate_score < 7 )
+ i_decimate_score += h->quantf.decimate_score15( h->dct.luma4x4[idx] );
+ h->mb.cache.non_zero_count[x264_scan8[idx]] = 1;
+ nz_ac = 1;
+ }
+ }
+ }
+ else
+ {
+ nz = h->quantf.quant_4x4x4( &dct4x4[i8x8*4], h->quant4_mf[CQM_4IC+b_inter][i_qp],
+ h->quant4_bias[CQM_4IC+b_inter][i_qp] );
+ nz_ac |= nz;
- quant_4x4( h, dct4x4[i], h->quant4_mf[CQM_4IC + b_inter], i_qscale, !b_inter );
- scan_zigzag_4x4( h->dct.block[16+i+ch*4].residual_ac, dct4x4[i] );
- x264_mb_dequant_4x4( dct4x4[i], h->dequant4_mf[CQM_4IC + b_inter], i_qscale );
+ FOREACH_BIT( i4x4, 0, nz )
+ {
+ int idx = 16+ch*16+i8x8*8+i4x4;
- if( b_inter )
- {
- i_decimate_score += x264_mb_decimate_score( h->dct.block[16+i+ch*4].residual_ac, 15 );
+ h->zigzagf.scan_4x4( h->dct.luma4x4[idx], dct4x4[i8x8*4+i4x4] );
+ h->quantf.dequant_4x4( dct4x4[i8x8*4+i4x4], dequant_mf, i_qp );
+ if( i_decimate_score < 7 )
+ i_decimate_score += h->quantf.decimate_score15( h->dct.luma4x4[idx] );
+ h->mb.cache.non_zero_count[x264_scan8[idx]] = 1;
+ }
}
}
- h->dctf.dct2x2dc( dct2x2 );
- quant_2x2_dc( h, dct2x2, h->quant4_mf[CQM_4IC + b_inter], i_qscale, !b_inter );
- scan_zigzag_2x2_dc( h->dct.chroma_dc[ch], dct2x2 );
+ if( h->mb.b_trellis )
+ nz_dc = x264_quant_chroma_dc_trellis( h, dct_dc, i_qp+3*chroma422, !b_inter, CHROMA_DC+ch );
+ else
+ {
+ nz_dc = 0;
+ for( int i = 0; i <= chroma422; i++ )
+ nz_dc |= h->quantf.quant_2x2_dc( &dct_dc[4*i], h->quant4_mf[CQM_4IC+b_inter][i_qp+3*chroma422][0] >> 1,
+ h->quant4_bias[CQM_4IC+b_inter][i_qp+3*chroma422][0] << 1 );
+ }
- /* output samples to fdec */
- h->dctf.idct2x2dc( dct2x2 );
- x264_mb_dequant_2x2_dc( dct2x2, h->dequant4_mf[CQM_4IC + b_inter], i_qscale ); /* XXX not inversed */
+ h->mb.cache.non_zero_count[x264_scan8[CHROMA_DC+ch]] = nz_dc;
- if( b_inter && i_decimate_score < 7 )
+ if( i_decimate_score < 7 || !nz_ac )
{
- /* Near null chroma 8x8 block so make it null (bits saving) */
- for( i = 0; i < 4; i++ )
+ /* Decimate the block */
+ M16( &h->mb.cache.non_zero_count[x264_scan8[16+16*ch]] ) = 0;
+ M16( &h->mb.cache.non_zero_count[x264_scan8[18+16*ch]] ) = 0;
+ if( chroma422 )
+ {
+ M16( &h->mb.cache.non_zero_count[x264_scan8[24+16*ch]] ) = 0;
+ M16( &h->mb.cache.non_zero_count[x264_scan8[26+16*ch]] ) = 0;
+ }
+
+ if( !nz_dc ) /* Whole block is empty */
+ continue;
+ if( !x264_mb_optimize_chroma_dc( h, dct_dc, dequant_mf, i_qp+3*chroma422, chroma422 ) )
+ {
+ h->mb.cache.non_zero_count[x264_scan8[CHROMA_DC+ch]] = 0;
+ continue;
+ }
+ /* DC-only */
+ if( chroma422 )
{
- int x, y;
- for( x = 0; x < 15; x++ )
+ zigzag_scan_2x4_dc( h->dct.chroma_dc[ch], dct_dc );
+ h->quantf.idct_dequant_2x4_dconly( dct_dc, dequant_mf, i_qp+3 );
+ }
+ else
+ {
+ zigzag_scan_2x2_dc( h->dct.chroma_dc[ch], dct_dc );
+ idct_dequant_2x2_dconly( dct_dc, dequant_mf, i_qp );
+ }
+
+ for( int i = 0; i <= chroma422; i++ )
+ h->dctf.add8x8_idct_dc( p_dst + 8*i*FDEC_STRIDE, &dct_dc[4*i] );
+ }
+ else
+ {
+ h->mb.i_cbp_chroma = 1;
+
+ if( nz_dc )
+ {
+ if( chroma422 )
{
- h->dct.block[16+i+ch*4].residual_ac[x] = 0;
+ zigzag_scan_2x4_dc( h->dct.chroma_dc[ch], dct_dc );
+ h->quantf.idct_dequant_2x4_dc( dct_dc, dct4x4, dequant_mf, i_qp+3 );
}
- for( x = 0; x < 4; x++ )
+ else
{
- for( y = 0; y < 4; y++ )
- {
- dct4x4[i][x][y] = 0;
- }
+ zigzag_scan_2x2_dc( h->dct.chroma_dc[ch], dct_dc );
+ idct_dequant_2x2_dc( dct_dc, dct4x4, dequant_mf, i_qp );
}
}
- }
- /* calculate dct coeffs */
- for( i = 0; i < 4; i++ )
- {
- /* copy dc coeff */
- dct4x4[i][0][0] = dct2x2[block_idx_y[i]][block_idx_x[i]];
+ for( int i = 0; i <= chroma422; i++ )
+ h->dctf.add8x8_idct( p_dst + 8*i*FDEC_STRIDE, &dct4x4[4*i] );
}
- h->dctf.add8x8_idct( p_dst, i_stride, dct4x4 );
}
+
+ /* 0 = none, 1 = DC only, 2 = DC+AC */
+ h->mb.i_cbp_chroma += (h->mb.cache.non_zero_count[x264_scan8[CHROMA_DC+0]] |
+ h->mb.cache.non_zero_count[x264_scan8[CHROMA_DC+1]] | h->mb.i_cbp_chroma);
}
-static void x264_macroblock_encode_skip( x264_t *h )
+void x264_mb_encode_chroma( x264_t *h, int b_inter, int i_qp )
{
- int i;
- h->mb.i_cbp_luma = 0x00;
- h->mb.i_cbp_chroma = 0x00;
+ if( CHROMA_FORMAT == CHROMA_420 )
+ x264_mb_encode_chroma_internal( h, b_inter, i_qp, 0 );
+ else
+ x264_mb_encode_chroma_internal( h, b_inter, i_qp, 1 );
+}
- for( i = 0; i < 16+8; i++ )
+static void x264_macroblock_encode_skip( x264_t *h )
+{
+ M32( &h->mb.cache.non_zero_count[x264_scan8[ 0]] ) = 0;
+ M32( &h->mb.cache.non_zero_count[x264_scan8[ 2]] ) = 0;
+ M32( &h->mb.cache.non_zero_count[x264_scan8[ 8]] ) = 0;
+ M32( &h->mb.cache.non_zero_count[x264_scan8[10]] ) = 0;
+ M32( &h->mb.cache.non_zero_count[x264_scan8[16+ 0]] ) = 0;
+ M32( &h->mb.cache.non_zero_count[x264_scan8[16+ 2]] ) = 0;
+ M32( &h->mb.cache.non_zero_count[x264_scan8[32+ 0]] ) = 0;
+ M32( &h->mb.cache.non_zero_count[x264_scan8[32+ 2]] ) = 0;
+ if( CHROMA_FORMAT >= CHROMA_422 )
{
- h->mb.cache.non_zero_count[x264_scan8[i]] = 0;
+ M32( &h->mb.cache.non_zero_count[x264_scan8[16+ 8]] ) = 0;
+ M32( &h->mb.cache.non_zero_count[x264_scan8[16+10]] ) = 0;
+ M32( &h->mb.cache.non_zero_count[x264_scan8[32+ 8]] ) = 0;
+ M32( &h->mb.cache.non_zero_count[x264_scan8[32+10]] ) = 0;
}
-
- /* store cbp */
+ h->mb.i_cbp_luma = 0;
+ h->mb.i_cbp_chroma = 0;
h->mb.cbp[h->mb.i_mb_xy] = 0;
}
/*****************************************************************************
- * x264_macroblock_encode_pskip:
- * Encode an already marked skip block
+ * Intra prediction for predictive lossless mode.
*****************************************************************************/
-void x264_macroblock_encode_pskip( x264_t *h )
+
+void x264_predict_lossless_chroma( x264_t *h, int i_mode )
+{
+ int height = 16 >> CHROMA_V_SHIFT;
+ if( i_mode == I_PRED_CHROMA_V )
+ {
+ h->mc.copy[PIXEL_8x8]( h->mb.pic.p_fdec[1], FDEC_STRIDE, h->mb.pic.p_fenc[1]-FENC_STRIDE, FENC_STRIDE, height );
+ h->mc.copy[PIXEL_8x8]( h->mb.pic.p_fdec[2], FDEC_STRIDE, h->mb.pic.p_fenc[2]-FENC_STRIDE, FENC_STRIDE, height );
+ memcpy( h->mb.pic.p_fdec[1], h->mb.pic.p_fdec[1]-FDEC_STRIDE, 8*sizeof(pixel) );
+ memcpy( h->mb.pic.p_fdec[2], h->mb.pic.p_fdec[2]-FDEC_STRIDE, 8*sizeof(pixel) );
+ }
+ else if( i_mode == I_PRED_CHROMA_H )
+ {
+ h->mc.copy[PIXEL_8x8]( h->mb.pic.p_fdec[1], FDEC_STRIDE, h->mb.pic.p_fenc[1]-1, FENC_STRIDE, height );
+ h->mc.copy[PIXEL_8x8]( h->mb.pic.p_fdec[2], FDEC_STRIDE, h->mb.pic.p_fenc[2]-1, FENC_STRIDE, height );
+ x264_copy_column8( h->mb.pic.p_fdec[1]+4*FDEC_STRIDE, h->mb.pic.p_fdec[1]+4*FDEC_STRIDE-1 );
+ x264_copy_column8( h->mb.pic.p_fdec[2]+4*FDEC_STRIDE, h->mb.pic.p_fdec[2]+4*FDEC_STRIDE-1 );
+ if( CHROMA_FORMAT == CHROMA_422 )
+ {
+ x264_copy_column8( h->mb.pic.p_fdec[1]+12*FDEC_STRIDE, h->mb.pic.p_fdec[1]+12*FDEC_STRIDE-1 );
+ x264_copy_column8( h->mb.pic.p_fdec[2]+12*FDEC_STRIDE, h->mb.pic.p_fdec[2]+12*FDEC_STRIDE-1 );
+ }
+ }
+ else
+ {
+ h->predict_chroma[i_mode]( h->mb.pic.p_fdec[1] );
+ h->predict_chroma[i_mode]( h->mb.pic.p_fdec[2] );
+ }
+}
+
+void x264_predict_lossless_4x4( x264_t *h, pixel *p_dst, int p, int idx, int i_mode )
{
- const int mvx = x264_clip3( h->mb.cache.mv[0][x264_scan8[0]][0],
- h->mb.mv_min[0], h->mb.mv_max[0] );
- const int mvy = x264_clip3( h->mb.cache.mv[0][x264_scan8[0]][1],
- h->mb.mv_min[1], h->mb.mv_max[1] );
-
- /* Motion compensation XXX probably unneeded */
- h->mc.mc_luma( h->mb.pic.p_fref[0][0], h->mb.pic.i_stride[0],
- h->mb.pic.p_fdec[0], h->mb.pic.i_stride[0],
- mvx, mvy, 16, 16 );
-
- /* Chroma MC */
- h->mc.mc_chroma( h->mb.pic.p_fref[0][0][4], h->mb.pic.i_stride[1],
- h->mb.pic.p_fdec[1], h->mb.pic.i_stride[1],
- mvx, mvy, 8, 8 );
-
- h->mc.mc_chroma( h->mb.pic.p_fref[0][0][5], h->mb.pic.i_stride[2],
- h->mb.pic.p_fdec[2], h->mb.pic.i_stride[2],
- mvx, mvy, 8, 8 );
-
- x264_macroblock_encode_skip( h );
+ int stride = h->fenc->i_stride[p] << MB_INTERLACED;
+ pixel *p_src = h->mb.pic.p_fenc_plane[p] + block_idx_x[idx]*4 + block_idx_y[idx]*4 * stride;
+
+ if( i_mode == I_PRED_4x4_V )
+ h->mc.copy[PIXEL_4x4]( p_dst, FDEC_STRIDE, p_src-stride, stride, 4 );
+ else if( i_mode == I_PRED_4x4_H )
+ h->mc.copy[PIXEL_4x4]( p_dst, FDEC_STRIDE, p_src-1, stride, 4 );
+ else
+ h->predict_4x4[i_mode]( p_dst );
+}
+
+void x264_predict_lossless_8x8( x264_t *h, pixel *p_dst, int p, int idx, int i_mode, pixel edge[36] )
+{
+ int stride = h->fenc->i_stride[p] << MB_INTERLACED;
+ pixel *p_src = h->mb.pic.p_fenc_plane[p] + (idx&1)*8 + (idx>>1)*8*stride;
+
+ if( i_mode == I_PRED_8x8_V )
+ h->mc.copy[PIXEL_8x8]( p_dst, FDEC_STRIDE, p_src-stride, stride, 8 );
+ else if( i_mode == I_PRED_8x8_H )
+ h->mc.copy[PIXEL_8x8]( p_dst, FDEC_STRIDE, p_src-1, stride, 8 );
+ else
+ h->predict_8x8[i_mode]( p_dst, edge );
+}
+
+void x264_predict_lossless_16x16( x264_t *h, int p, int i_mode )
+{
+ int stride = h->fenc->i_stride[p] << MB_INTERLACED;
+ if( i_mode == I_PRED_16x16_V )
+ h->mc.copy[PIXEL_16x16]( h->mb.pic.p_fdec[p], FDEC_STRIDE, h->mb.pic.p_fenc_plane[p]-stride, stride, 16 );
+ else if( i_mode == I_PRED_16x16_H )
+ h->mc.copy_16x16_unaligned( h->mb.pic.p_fdec[p], FDEC_STRIDE, h->mb.pic.p_fenc_plane[p]-1, stride, 16 );
+ else
+ h->predict_16x16[i_mode]( h->mb.pic.p_fdec[p] );
}
/*****************************************************************************
* x264_macroblock_encode:
*****************************************************************************/
-void x264_macroblock_encode( x264_t *h )
+static ALWAYS_INLINE void x264_macroblock_encode_internal( x264_t *h, int plane_count, int chroma )
{
- int i_cbp_dc = 0;
int i_qp = h->mb.i_qp;
- int i;
+ int b_decimate = h->mb.b_dct_decimate;
+ int b_force_no_skip = 0;
+ int nz;
+ h->mb.i_cbp_luma = 0;
+ for( int p = 0; p < plane_count; p++ )
+ h->mb.cache.non_zero_count[x264_scan8[LUMA_DC+p]] = 0;
+
+ if( h->mb.i_type == I_PCM )
+ {
+ /* if PCM is chosen, we need to store reconstructed frame data */
+ for( int p = 0; p < plane_count; p++ )
+ h->mc.copy[PIXEL_16x16]( h->mb.pic.p_fdec[p], FDEC_STRIDE, h->mb.pic.p_fenc[p], FENC_STRIDE, 16 );
+ if( chroma )
+ {
+ int height = 16 >> CHROMA_V_SHIFT;
+ h->mc.copy[PIXEL_8x8] ( h->mb.pic.p_fdec[1], FDEC_STRIDE, h->mb.pic.p_fenc[1], FENC_STRIDE, height );
+ h->mc.copy[PIXEL_8x8] ( h->mb.pic.p_fdec[2], FDEC_STRIDE, h->mb.pic.p_fenc[2], FENC_STRIDE, height );
+ }
+ return;
+ }
+
+ if( !h->mb.b_allow_skip )
+ {
+ b_force_no_skip = 1;
+ if( IS_SKIP(h->mb.i_type) )
+ {
+ if( h->mb.i_type == P_SKIP )
+ h->mb.i_type = P_L0;
+ else if( h->mb.i_type == B_SKIP )
+ h->mb.i_type = B_DIRECT;
+ }
+ }
if( h->mb.i_type == P_SKIP )
{
- /* A bit special */
- x264_macroblock_encode_pskip( h );
+ /* don't do pskip motion compensation if it was already done in macroblock_analyse */
+ if( !h->mb.b_skip_mc )
+ {
+ int mvx = x264_clip3( h->mb.cache.mv[0][x264_scan8[0]][0],
+ h->mb.mv_min[0], h->mb.mv_max[0] );
+ int mvy = x264_clip3( h->mb.cache.mv[0][x264_scan8[0]][1],
+ h->mb.mv_min[1], h->mb.mv_max[1] );
+
+ for( int p = 0; p < plane_count; p++ )
+ h->mc.mc_luma( h->mb.pic.p_fdec[p], FDEC_STRIDE,
+ &h->mb.pic.p_fref[0][0][p*4], h->mb.pic.i_stride[p],
+ mvx, mvy, 16, 16, &h->sh.weight[0][p] );
+
+ if( chroma )
+ {
+ int v_shift = CHROMA_V_SHIFT;
+ int height = 16 >> v_shift;
+
+ /* Special case for mv0, which is (of course) very common in P-skip mode. */
+ if( mvx | mvy )
+ h->mc.mc_chroma( h->mb.pic.p_fdec[1], h->mb.pic.p_fdec[2], FDEC_STRIDE,
+ h->mb.pic.p_fref[0][0][4], h->mb.pic.i_stride[1],
+ mvx, 2*mvy>>v_shift, 8, height );
+ else
+ h->mc.load_deinterleave_chroma_fdec( h->mb.pic.p_fdec[1], h->mb.pic.p_fref[0][0][4],
+ h->mb.pic.i_stride[1], height );
+
+ if( h->sh.weight[0][1].weightfn )
+ h->sh.weight[0][1].weightfn[8>>2]( h->mb.pic.p_fdec[1], FDEC_STRIDE,
+ h->mb.pic.p_fdec[1], FDEC_STRIDE,
+ &h->sh.weight[0][1], height );
+ if( h->sh.weight[0][2].weightfn )
+ h->sh.weight[0][2].weightfn[8>>2]( h->mb.pic.p_fdec[2], FDEC_STRIDE,
+ h->mb.pic.p_fdec[2], FDEC_STRIDE,
+ &h->sh.weight[0][2], height );
+ }
+ }
+
+ x264_macroblock_encode_skip( h );
return;
}
if( h->mb.i_type == B_SKIP )
{
- /* XXX motion compensation is probably unneeded */
- x264_mb_mc( h );
+ /* don't do bskip motion compensation if it was already done in macroblock_analyse */
+ if( !h->mb.b_skip_mc )
+ x264_mb_mc( h );
x264_macroblock_encode_skip( h );
return;
}
if( h->mb.i_type == I_16x16 )
{
- const int i_mode = h->mb.i_intra16x16_pred_mode;
h->mb.b_transform_8x8 = 0;
- /* do the right prediction */
- h->predict_16x16[i_mode]( h->mb.pic.p_fdec[0], h->mb.pic.i_stride[0] );
- /* encode the 16x16 macroblock */
- x264_mb_encode_i16x16( h, i_qp );
-
- /* fix the pred mode value */
- h->mb.i_intra16x16_pred_mode = x264_mb_pred_mode16x16_fix[i_mode];
+ for( int p = 0; p < plane_count; p++, i_qp = h->mb.i_chroma_qp )
+ x264_mb_encode_i16x16( h, p, i_qp );
}
else if( h->mb.i_type == I_8x8 )
{
h->mb.b_transform_8x8 = 1;
- for( i = 0; i < 4; i++ )
+ /* If we already encoded 3 of the 4 i8x8 blocks, we don't have to do them again. */
+ if( h->mb.i_skip_intra )
{
- const int i_dst = h->mb.pic.i_stride[0];
- uint8_t *p_dst = &h->mb.pic.p_fdec[0][8 * (i&1) + 8 * (i>>1) * i_dst];
- int i_mode = h->mb.cache.intra4x4_pred_mode[x264_scan8[4*i]];
-
- h->predict_8x8[i_mode]( p_dst, i_dst, h->mb.i_neighbour8[i] );
- x264_mb_encode_i8x8( h, i, i_qp );
- h->mb.cache.intra4x4_pred_mode[x264_scan8[4*i]] = x264_mb_pred_mode4x4_fix(i_mode);
+ h->mc.copy[PIXEL_16x16]( h->mb.pic.p_fdec[0], FDEC_STRIDE, h->mb.pic.i8x8_fdec_buf, 16, 16 );
+ M32( &h->mb.cache.non_zero_count[x264_scan8[ 0]] ) = h->mb.pic.i8x8_nnz_buf[0];
+ M32( &h->mb.cache.non_zero_count[x264_scan8[ 2]] ) = h->mb.pic.i8x8_nnz_buf[1];
+ M32( &h->mb.cache.non_zero_count[x264_scan8[ 8]] ) = h->mb.pic.i8x8_nnz_buf[2];
+ M32( &h->mb.cache.non_zero_count[x264_scan8[10]] ) = h->mb.pic.i8x8_nnz_buf[3];
+ h->mb.i_cbp_luma = h->mb.pic.i8x8_cbp;
+ /* In RD mode, restore the now-overwritten DCT data. */
+ if( h->mb.i_skip_intra == 2 )
+ h->mc.memcpy_aligned( h->dct.luma8x8, h->mb.pic.i8x8_dct_buf, sizeof(h->mb.pic.i8x8_dct_buf) );
+ }
+ for( int p = 0; p < plane_count; p++, i_qp = h->mb.i_chroma_qp )
+ {
+ for( int i = (p == 0 && h->mb.i_skip_intra) ? 3 : 0 ; i < 4; i++ )
+ {
+ int i_mode = h->mb.cache.intra4x4_pred_mode[x264_scan8[4*i]];
+ x264_mb_encode_i8x8( h, p, i, i_qp, i_mode, NULL, 1 );
+ }
}
}
else if( h->mb.i_type == I_4x4 )
{
h->mb.b_transform_8x8 = 0;
- for( i = 0; i < 16; i++ )
+ /* If we already encoded 15 of the 16 i4x4 blocks, we don't have to do them again. */
+ if( h->mb.i_skip_intra )
{
- const int i_dst = h->mb.pic.i_stride[0];
- uint8_t *p_dst = &h->mb.pic.p_fdec[0][4 * block_idx_x[i] + 4 * block_idx_y[i] * i_dst];
- int i_mode = h->mb.cache.intra4x4_pred_mode[x264_scan8[i]];
+ h->mc.copy[PIXEL_16x16]( h->mb.pic.p_fdec[0], FDEC_STRIDE, h->mb.pic.i4x4_fdec_buf, 16, 16 );
+ M32( &h->mb.cache.non_zero_count[x264_scan8[ 0]] ) = h->mb.pic.i4x4_nnz_buf[0];
+ M32( &h->mb.cache.non_zero_count[x264_scan8[ 2]] ) = h->mb.pic.i4x4_nnz_buf[1];
+ M32( &h->mb.cache.non_zero_count[x264_scan8[ 8]] ) = h->mb.pic.i4x4_nnz_buf[2];
+ M32( &h->mb.cache.non_zero_count[x264_scan8[10]] ) = h->mb.pic.i4x4_nnz_buf[3];
+ h->mb.i_cbp_luma = h->mb.pic.i4x4_cbp;
+ /* In RD mode, restore the now-overwritten DCT data. */
+ if( h->mb.i_skip_intra == 2 )
+ h->mc.memcpy_aligned( h->dct.luma4x4, h->mb.pic.i4x4_dct_buf, sizeof(h->mb.pic.i4x4_dct_buf) );
+ }
+ for( int p = 0; p < plane_count; p++, i_qp = h->mb.i_chroma_qp )
+ {
+ for( int i = (p == 0 && h->mb.i_skip_intra) ? 15 : 0 ; i < 16; i++ )
+ {
+ pixel *p_dst = &h->mb.pic.p_fdec[p][block_idx_xy_fdec[i]];
+ int i_mode = h->mb.cache.intra4x4_pred_mode[x264_scan8[i]];
- if( (h->mb.i_neighbour4[i] & (MB_TOPRIGHT|MB_TOP)) == MB_TOP )
- /* emulate missing topright samples */
- *(uint32_t*) &p_dst[4 - i_dst] = p_dst[3 - i_dst] * 0x01010101U;
+ if( (h->mb.i_neighbour4[i] & (MB_TOPRIGHT|MB_TOP)) == MB_TOP )
+ /* emulate missing topright samples */
+ MPIXEL_X4( &p_dst[4-FDEC_STRIDE] ) = PIXEL_SPLAT_X4( p_dst[3-FDEC_STRIDE] );
- h->predict_4x4[i_mode]( p_dst, i_dst );
- x264_mb_encode_i4x4( h, i, i_qp );
- h->mb.cache.intra4x4_pred_mode[x264_scan8[i]] = x264_mb_pred_mode4x4_fix(i_mode);
+ x264_mb_encode_i4x4( h, p, i, i_qp, i_mode, 1 );
+ }
}
}
else /* Inter MB */
{
- int i8x8, i4x4, idx;
int i_decimate_mb = 0;
- /* Motion compensation */
- x264_mb_mc( h );
+ /* Don't repeat motion compensation if it was already done in non-RD transform analysis */
+ if( !h->mb.b_skip_mc )
+ x264_mb_mc( h );
if( h->mb.b_lossless )
{
- for( i4x4 = 0; i4x4 < 16; i4x4++ )
- {
- int o = block_idx_x[i4x4]*4 + block_idx_y[i4x4]*4 * h->mb.pic.i_stride[0];
- sub_zigzag_4x4full( h->dct.block[i4x4].luma4x4, h->mb.pic.p_fenc[0]+o, h->mb.pic.p_fdec[0]+o, h->mb.pic.i_stride[0] );
- }
+ if( h->mb.b_transform_8x8 )
+ for( int p = 0; p < plane_count; p++ )
+ for( int i8x8 = 0; i8x8 < 4; i8x8++ )
+ {
+ int x = i8x8&1;
+ int y = i8x8>>1;
+ nz = h->zigzagf.sub_8x8( h->dct.luma8x8[p*4+i8x8], h->mb.pic.p_fenc[p] + 8*x + 8*y*FENC_STRIDE,
+ h->mb.pic.p_fdec[p] + 8*x + 8*y*FDEC_STRIDE );
+ STORE_8x8_NNZ( p, i8x8, nz );
+ h->mb.i_cbp_luma |= nz << i8x8;
+ }
+ else
+ for( int p = 0; p < plane_count; p++ )
+ for( int i4x4 = 0; i4x4 < 16; i4x4++ )
+ {
+ nz = h->zigzagf.sub_4x4( h->dct.luma4x4[p*16+i4x4],
+ h->mb.pic.p_fenc[p]+block_idx_xy_fenc[i4x4],
+ h->mb.pic.p_fdec[p]+block_idx_xy_fdec[i4x4] );
+ h->mb.cache.non_zero_count[x264_scan8[p*16+i4x4]] = nz;
+ h->mb.i_cbp_luma |= nz << (i4x4>>2);
+ }
}
else if( h->mb.b_transform_8x8 )
{
- int16_t dct8x8[4][8][8];
- h->dctf.sub16x16_dct8( dct8x8,
- h->mb.pic.p_fenc[0], h->mb.pic.i_stride[0],
- h->mb.pic.p_fdec[0], h->mb.pic.i_stride[0] );
+ ALIGNED_ARRAY_N( dctcoef, dct8x8,[4],[64] );
+ b_decimate &= !h->mb.b_trellis || !h->param.b_cabac; // 8x8 trellis is inherently optimal decimation for CABAC
- for( idx = 0; idx < 4; idx++ )
+ for( int p = 0; p < plane_count; p++, i_qp = h->mb.i_chroma_qp )
{
- int i_decimate_8x8;
+ CLEAR_16x16_NNZ( p );
+ h->dctf.sub16x16_dct8( dct8x8, h->mb.pic.p_fenc[p], h->mb.pic.p_fdec[p] );
+ h->nr_count[1+!!p*2] += h->mb.b_noise_reduction * 4;
- quant_8x8( h, dct8x8[idx], h->quant8_mf[CQM_8PY], i_qp, 0 );
- scan_zigzag_8x8full( h->dct.luma8x8[idx], dct8x8[idx] );
- x264_mb_dequant_8x8( dct8x8[idx], h->dequant8_mf[CQM_8PY], i_qp );
+ int plane_cbp = 0;
+ for( int idx = 0; idx < 4; idx++ )
+ {
+ nz = x264_quant_8x8( h, dct8x8[idx], i_qp, ctx_cat_plane[DCT_LUMA_8x8][p], 0, p, idx );
- i_decimate_8x8 = x264_mb_decimate_score( h->dct.luma8x8[idx], 64 );
- i_decimate_mb += i_decimate_8x8;
- if( i_decimate_8x8 < 4 )
+ if( nz )
+ {
+ h->zigzagf.scan_8x8( h->dct.luma8x8[p*4+idx], dct8x8[idx] );
+ if( b_decimate )
+ {
+ int i_decimate_8x8 = h->quantf.decimate_score64( h->dct.luma8x8[p*4+idx] );
+ i_decimate_mb += i_decimate_8x8;
+ if( i_decimate_8x8 >= 4 )
+ plane_cbp |= 1<<idx;
+ }
+ else
+ plane_cbp |= 1<<idx;
+ }
+ }
+
+ if( i_decimate_mb >= 6 || !b_decimate )
{
- memset( h->dct.luma8x8[idx], 0, sizeof( h->dct.luma8x8[idx] ) );
- memset( dct8x8[idx], 0, sizeof( dct8x8[idx] ) );
+ h->mb.i_cbp_luma |= plane_cbp;
+ FOREACH_BIT( idx, 0, plane_cbp )
+ {
+ h->quantf.dequant_8x8( dct8x8[idx], h->dequant8_mf[p?CQM_8PC:CQM_8PY], i_qp );
+ h->dctf.add8x8_idct8( &h->mb.pic.p_fdec[p][8*(idx&1) + 8*(idx>>1)*FDEC_STRIDE], dct8x8[idx] );
+ STORE_8x8_NNZ( p, idx, 1 );
+ }
}
}
-
- if( i_decimate_mb < 6 )
- memset( h->dct.luma8x8, 0, sizeof( h->dct.luma8x8 ) );
- else
- h->dctf.add16x16_idct8( h->mb.pic.p_fdec[0], h->mb.pic.i_stride[0], dct8x8 );
}
else
{
- int16_t dct4x4[16][4][4];
- h->dctf.sub16x16_dct( dct4x4,
- h->mb.pic.p_fenc[0], h->mb.pic.i_stride[0],
- h->mb.pic.p_fdec[0], h->mb.pic.i_stride[0] );
-
- for( i8x8 = 0; i8x8 < 4; i8x8++ )
+ ALIGNED_ARRAY_N( dctcoef, dct4x4,[16],[16] );
+ for( int p = 0; p < plane_count; p++, i_qp = h->mb.i_chroma_qp )
{
- int i_decimate_8x8;
+ CLEAR_16x16_NNZ( p );
+ h->dctf.sub16x16_dct( dct4x4, h->mb.pic.p_fenc[p], h->mb.pic.p_fdec[p] );
- /* encode one 4x4 block */
- i_decimate_8x8 = 0;
- for( i4x4 = 0; i4x4 < 4; i4x4++ )
+ if( h->mb.b_noise_reduction )
{
- idx = i8x8 * 4 + i4x4;
-
- quant_4x4( h, dct4x4[idx], h->quant4_mf[CQM_4PY], i_qp, 0 );
- scan_zigzag_4x4full( h->dct.block[idx].luma4x4, dct4x4[idx] );
- x264_mb_dequant_4x4( dct4x4[idx], h->dequant4_mf[CQM_4PY], i_qp );
+ h->nr_count[0+!!p*2] += 16;
+ for( int idx = 0; idx < 16; idx++ )
+ h->quantf.denoise_dct( dct4x4[idx], h->nr_residual_sum[0+!!p*2], h->nr_offset[0+!!p*2], 16 );
+ }
- i_decimate_8x8 += x264_mb_decimate_score( h->dct.block[idx].luma4x4, 16 );
+ int plane_cbp = 0;
+ for( int i8x8 = 0; i8x8 < 4; i8x8++ )
+ {
+ int i_decimate_8x8 = b_decimate ? 0 : 6;
+ int nnz8x8 = 0;
+ if( h->mb.b_trellis )
+ {
+ for( int i4x4 = 0; i4x4 < 4; i4x4++ )
+ {
+ int idx = i8x8*4+i4x4;
+ if( x264_quant_4x4_trellis( h, dct4x4[idx], CQM_4PY, i_qp, ctx_cat_plane[DCT_LUMA_4x4][p], 0, !!p, p*16+idx ) )
+ {
+ h->zigzagf.scan_4x4( h->dct.luma4x4[p*16+idx], dct4x4[idx] );
+ h->quantf.dequant_4x4( dct4x4[idx], h->dequant4_mf[p?CQM_4PC:CQM_4PY], i_qp );
+ if( i_decimate_8x8 < 6 )
+ i_decimate_8x8 += h->quantf.decimate_score16( h->dct.luma4x4[p*16+idx] );
+ h->mb.cache.non_zero_count[x264_scan8[p*16+idx]] = 1;
+ nnz8x8 = 1;
+ }
+ }
+ }
+ else
+ {
+ nnz8x8 = nz = h->quantf.quant_4x4x4( &dct4x4[i8x8*4], h->quant4_mf[CQM_4PY][i_qp], h->quant4_bias[CQM_4PY][i_qp] );
+ if( nz )
+ {
+ FOREACH_BIT( idx, i8x8*4, nz )
+ {
+ h->zigzagf.scan_4x4( h->dct.luma4x4[p*16+idx], dct4x4[idx] );
+ h->quantf.dequant_4x4( dct4x4[idx], h->dequant4_mf[p?CQM_4PC:CQM_4PY], i_qp );
+ if( i_decimate_8x8 < 6 )
+ i_decimate_8x8 += h->quantf.decimate_score16( h->dct.luma4x4[p*16+idx] );
+ h->mb.cache.non_zero_count[x264_scan8[p*16+idx]] = 1;
+ }
+ }
+ }
+ if( nnz8x8 )
+ {
+ i_decimate_mb += i_decimate_8x8;
+ if( i_decimate_8x8 < 4 )
+ STORE_8x8_NNZ( p, i8x8, 0 );
+ else
+ plane_cbp |= 1<<i8x8;
+ }
}
- /* decimate this 8x8 block */
- i_decimate_mb += i_decimate_8x8;
- if( i_decimate_8x8 < 4 )
+ if( i_decimate_mb < 6 )
{
- for( i4x4 = 0; i4x4 < 4; i4x4++ )
+ plane_cbp = 0;
+ CLEAR_16x16_NNZ( p );
+ }
+ else
+ {
+ h->mb.i_cbp_luma |= plane_cbp;
+ FOREACH_BIT( i8x8, 0, plane_cbp )
{
- int x, y;
- idx = i8x8 * 4 + i4x4;
- for( i = 0; i < 16; i++ )
- h->dct.block[idx].luma4x4[i] = 0;
- for( x = 0; x < 4; x++ )
- for( y = 0; y < 4; y++ )
- dct4x4[idx][x][y] = 0;
+ h->dctf.add8x8_idct( &h->mb.pic.p_fdec[p][(i8x8&1)*8 + (i8x8>>1)*8*FDEC_STRIDE], &dct4x4[i8x8*4] );
}
}
}
-
- if( i_decimate_mb < 6 )
- for( idx = 0; idx < 16; idx++ )
- for( i = 0; i < 16; i++ )
- h->dct.block[idx].luma4x4[i] = 0;
- else
- h->dctf.add16x16_idct( h->mb.pic.p_fdec[0], h->mb.pic.i_stride[0], dct4x4 );
}
}
/* encode chroma */
- i_qp = i_chroma_qp_table[x264_clip3( i_qp + h->pps->i_chroma_qp_index_offset, 0, 51 )];
- if( IS_INTRA( h->mb.i_type ) )
+ if( chroma )
{
- const int i_mode = h->mb.i_chroma_pred_mode;
- h->predict_8x8c[i_mode]( h->mb.pic.p_fdec[1], h->mb.pic.i_stride[1] );
- h->predict_8x8c[i_mode]( h->mb.pic.p_fdec[2], h->mb.pic.i_stride[2] );
+ if( IS_INTRA( h->mb.i_type ) )
+ {
+ int i_mode = h->mb.i_chroma_pred_mode;
+ if( h->mb.b_lossless )
+ x264_predict_lossless_chroma( h, i_mode );
+ else
+ {
+ h->predict_chroma[i_mode]( h->mb.pic.p_fdec[1] );
+ h->predict_chroma[i_mode]( h->mb.pic.p_fdec[2] );
+ }
+ }
+
+ /* encode the 8x8 blocks */
+ x264_mb_encode_chroma( h, !IS_INTRA( h->mb.i_type ), h->mb.i_chroma_qp );
}
+ else
+ h->mb.i_cbp_chroma = 0;
- /* encode the 8x8 blocks */
- x264_mb_encode_8x8_chroma( h, !IS_INTRA( h->mb.i_type ), i_qp );
+ /* store cbp */
+ int cbp = h->mb.i_cbp_chroma << 4 | h->mb.i_cbp_luma;
+ if( h->param.b_cabac )
+ cbp |= h->mb.cache.non_zero_count[x264_scan8[LUMA_DC ]] << 8
+ | h->mb.cache.non_zero_count[x264_scan8[CHROMA_DC+0]] << 9
+ | h->mb.cache.non_zero_count[x264_scan8[CHROMA_DC+1]] << 10;
+ h->mb.cbp[h->mb.i_mb_xy] = cbp;
- /* Calculate the Luma/Chroma patern and non_zero_count */
- h->mb.i_cbp_luma = 0x00;
- if( h->mb.i_type == I_16x16 )
+ /* Check for P_SKIP
+ * XXX: in the me perhaps we should take x264_mb_predict_mv_pskip into account
+ * (if multiple mv give same result)*/
+ if( !b_force_no_skip )
{
- for( i = 0; i < 16; i++ )
+ if( h->mb.i_type == P_L0 && h->mb.i_partition == D_16x16 &&
+ !(h->mb.i_cbp_luma | h->mb.i_cbp_chroma) &&
+ M32( h->mb.cache.mv[0][x264_scan8[0]] ) == M32( h->mb.cache.pskip_mv )
+ && h->mb.cache.ref[0][x264_scan8[0]] == 0 )
{
- const int nz = array_non_zero_count( h->dct.block[i].residual_ac, 15 );
- h->mb.cache.non_zero_count[x264_scan8[i]] = nz;
- if( nz > 0 )
- h->mb.i_cbp_luma = 0x0f;
+ h->mb.i_type = P_SKIP;
}
- }
- else if( h->mb.b_transform_8x8 )
- {
- /* coded_block_flag is enough for CABAC.
- * the full non_zero_count is done only in CAVLC. */
- for( i = 0; i < 4; i++ )
+
+ /* Check for B_SKIP */
+ if( h->mb.i_type == B_DIRECT && !(h->mb.i_cbp_luma | h->mb.i_cbp_chroma) )
{
- const int nz = array_non_zero( h->dct.luma8x8[i], 64 );
- int j;
- for( j = 0; j < 4; j++ )
- h->mb.cache.non_zero_count[x264_scan8[4*i+j]] = nz;
- if( nz > 0 )
- h->mb.i_cbp_luma |= 1 << i;
+ h->mb.i_type = B_SKIP;
}
}
+}
+
+void x264_macroblock_encode( x264_t *h )
+{
+ if( CHROMA444 )
+ x264_macroblock_encode_internal( h, 3, 0 );
else
+ x264_macroblock_encode_internal( h, 1, 1 );
+}
+
+/*****************************************************************************
+ * x264_macroblock_probe_skip:
+ * Check if the current MB could be encoded as a [PB]_SKIP
+ *****************************************************************************/
+static ALWAYS_INLINE int x264_macroblock_probe_skip_internal( x264_t *h, int b_bidir, int plane_count, int chroma )
+{
+ ALIGNED_ARRAY_N( dctcoef, dct4x4,[8],[16] );
+ ALIGNED_ARRAY_16( dctcoef, dctscan,[16] );
+ ALIGNED_4( int16_t mvp[2] );
+ int i_qp = h->mb.i_qp;
+
+ for( int p = 0; p < plane_count; p++, i_qp = h->mb.i_chroma_qp )
{
- for( i = 0; i < 16; i++ )
+ int quant_cat = p ? CQM_4PC : CQM_4PY;
+ if( !b_bidir )
{
- const int nz = array_non_zero_count( h->dct.block[i].luma4x4, 16 );
- h->mb.cache.non_zero_count[x264_scan8[i]] = nz;
- if( nz > 0 )
- h->mb.i_cbp_luma |= 1 << (i/4);
+ /* Get the MV */
+ mvp[0] = x264_clip3( h->mb.cache.pskip_mv[0], h->mb.mv_min[0], h->mb.mv_max[0] );
+ mvp[1] = x264_clip3( h->mb.cache.pskip_mv[1], h->mb.mv_min[1], h->mb.mv_max[1] );
+
+ /* Motion compensation */
+ h->mc.mc_luma( h->mb.pic.p_fdec[p], FDEC_STRIDE,
+ &h->mb.pic.p_fref[0][0][p*4], h->mb.pic.i_stride[p],
+ mvp[0], mvp[1], 16, 16, &h->sh.weight[0][p] );
}
- }
- /* Calculate the chroma patern */
- h->mb.i_cbp_chroma = 0x00;
- for( i = 0; i < 8; i++ )
- {
- const int nz = array_non_zero_count( h->dct.block[16+i].residual_ac, 15 );
- h->mb.cache.non_zero_count[x264_scan8[16+i]] = nz;
- if( nz > 0 )
+ for( int i8x8 = 0, i_decimate_mb = 0; i8x8 < 4; i8x8++ )
{
- h->mb.i_cbp_chroma = 0x02; /* dc+ac (we can't do only ac) */
+ int fenc_offset = (i8x8&1) * 8 + (i8x8>>1) * FENC_STRIDE * 8;
+ int fdec_offset = (i8x8&1) * 8 + (i8x8>>1) * FDEC_STRIDE * 8;
+
+ h->dctf.sub8x8_dct( dct4x4, h->mb.pic.p_fenc[p] + fenc_offset,
+ h->mb.pic.p_fdec[p] + fdec_offset );
+
+ if( h->mb.b_noise_reduction )
+ for( int i4x4 = 0; i4x4 < 4; i4x4++ )
+ h->quantf.denoise_dct( dct4x4[i4x4], h->nr_residual_sum[0+!!p*2], h->nr_offset[0+!!p*2], 16 );
+
+ int nz = h->quantf.quant_4x4x4( dct4x4, h->quant4_mf[quant_cat][i_qp], h->quant4_bias[quant_cat][i_qp] );
+ FOREACH_BIT( idx, 0, nz )
+ {
+ h->zigzagf.scan_4x4( dctscan, dct4x4[idx] );
+ i_decimate_mb += h->quantf.decimate_score16( dctscan );
+ if( i_decimate_mb >= 6 )
+ return 0;
+ }
}
}
- if( h->mb.i_cbp_chroma == 0x00 &&
- ( array_non_zero_count( h->dct.chroma_dc[0], 4 ) > 0 || array_non_zero_count( h->dct.chroma_dc[1], 4 ) ) > 0 )
- {
- h->mb.i_cbp_chroma = 0x01; /* dc only */
- }
- if( h->param.b_cabac )
+ if( chroma == CHROMA_420 || chroma == CHROMA_422 )
{
- if( h->mb.i_type == I_16x16 && array_non_zero_count( h->dct.luma16x16_dc, 16 ) > 0 )
- i_cbp_dc = 0x01;
- else
- i_cbp_dc = 0x00;
+ i_qp = h->mb.i_chroma_qp;
+ int chroma422 = chroma == CHROMA_422;
+ int thresh = chroma422 ? (x264_lambda2_tab[i_qp] + 16) >> 5 : (x264_lambda2_tab[i_qp] + 32) >> 6;
+ int ssd;
+ ALIGNED_ARRAY_16( dctcoef, dct_dc,[8] );
- if( array_non_zero_count( h->dct.chroma_dc[0], 4 ) > 0 )
- i_cbp_dc |= 0x02;
- if( array_non_zero_count( h->dct.chroma_dc[1], 4 ) > 0 )
- i_cbp_dc |= 0x04;
- }
+ if( !b_bidir )
+ {
+ /* Special case for mv0, which is (of course) very common in P-skip mode. */
+ if( M32( mvp ) )
+ h->mc.mc_chroma( h->mb.pic.p_fdec[1], h->mb.pic.p_fdec[2], FDEC_STRIDE,
+ h->mb.pic.p_fref[0][0][4], h->mb.pic.i_stride[1],
+ mvp[0], mvp[1]<<chroma422, 8, chroma422?16:8 );
+ else
+ h->mc.load_deinterleave_chroma_fdec( h->mb.pic.p_fdec[1], h->mb.pic.p_fref[0][0][4],
+ h->mb.pic.i_stride[1], chroma422?16:8 );
+ }
- /* store cbp */
- h->mb.cbp[h->mb.i_mb_xy] = (i_cbp_dc << 8) | (h->mb.i_cbp_chroma << 4) | h->mb.i_cbp_luma;
+ for( int ch = 0; ch < 2; ch++ )
+ {
+ pixel *p_src = h->mb.pic.p_fenc[1+ch];
+ pixel *p_dst = h->mb.pic.p_fdec[1+ch];
+
+ if( !b_bidir && h->sh.weight[0][1+ch].weightfn )
+ h->sh.weight[0][1+ch].weightfn[8>>2]( h->mb.pic.p_fdec[1+ch], FDEC_STRIDE,
+ h->mb.pic.p_fdec[1+ch], FDEC_STRIDE,
+ &h->sh.weight[0][1+ch], chroma422?16:8 );
+
+ /* there is almost never a termination during chroma, but we can't avoid the check entirely */
+ /* so instead we check SSD and skip the actual check if the score is low enough. */
+ ssd = h->pixf.ssd[chroma422?PIXEL_8x16:PIXEL_8x8]( p_dst, FDEC_STRIDE, p_src, FENC_STRIDE );
+ if( ssd < thresh )
+ continue;
+
+ /* The vast majority of chroma checks will terminate during the DC check or the higher
+ * threshold check, so we can save time by doing a DC-only DCT. */
+ if( h->mb.b_noise_reduction )
+ {
+ for( int i = 0; i <= chroma422; i++ )
+ h->dctf.sub8x8_dct( &dct4x4[4*i], p_src + 8*i*FENC_STRIDE, p_dst + 8*i*FDEC_STRIDE );
- if( h->mb.i_type != I_16x16 && h->mb.i_cbp_luma == 0 && h->mb.i_cbp_chroma == 0 )
- {
- /* It won'y change anything at the decoder side but it is needed else the
- * decoder will fail to read the next QP */
- h->mb.qp[h->mb.i_mb_xy] = h->mb.i_last_qp;
+ for( int i4x4 = 0; i4x4 < (chroma422?8:4); i4x4++ )
+ {
+ h->quantf.denoise_dct( dct4x4[i4x4], h->nr_residual_sum[2], h->nr_offset[2], 16 );
+ dct_dc[i4x4] = dct4x4[i4x4][0];
+ dct4x4[i4x4][0] = 0;
+ }
+ }
+ else
+ {
+ if( chroma422 )
+ h->dctf.sub8x16_dct_dc( dct_dc, p_src, p_dst );
+ else
+ h->dctf.sub8x8_dct_dc( dct_dc, p_src, p_dst );
+ }
+
+ for( int i = 0; i <= chroma422; i++ )
+ if( h->quantf.quant_2x2_dc( &dct_dc[4*i], h->quant4_mf[CQM_4PC][i_qp+3*chroma422][0] >> 1,
+ h->quant4_bias[CQM_4PC][i_qp+3*chroma422][0] << 1 ) )
+ return 0;
+
+ /* If there wasn't a termination in DC, we can check against a much higher threshold. */
+ if( ssd < thresh*4 )
+ continue;
+
+ if( !h->mb.b_noise_reduction )
+ for( int i = 0; i <= chroma422; i++ )
+ {
+ h->dctf.sub8x8_dct( &dct4x4[4*i], p_src + 8*i*FENC_STRIDE, p_dst + 8*i*FDEC_STRIDE );
+ dct4x4[i*4+0][0] = 0;
+ dct4x4[i*4+1][0] = 0;
+ dct4x4[i*4+2][0] = 0;
+ dct4x4[i*4+3][0] = 0;
+ }
+
+ /* calculate dct coeffs */
+ for( int i8x8 = 0, i_decimate_mb = 0; i8x8 < (chroma422?2:1); i8x8++ )
+ {
+ int nz = h->quantf.quant_4x4x4( &dct4x4[i8x8*4], h->quant4_mf[CQM_4PC][i_qp], h->quant4_bias[CQM_4PC][i_qp] );
+ FOREACH_BIT( idx, i8x8*4, nz )
+ {
+ h->zigzagf.scan_4x4( dctscan, dct4x4[idx] );
+ i_decimate_mb += h->quantf.decimate_score15( dctscan );
+ if( i_decimate_mb >= 7 )
+ return 0;
+ }
+ }
+ }
}
+ h->mb.b_skip_mc = 1;
+ return 1;
+}
- /* Check for P_SKIP
- * XXX: in the me perhaps we should take x264_mb_predict_mv_pskip into account
- * (if multiple mv give same result)*/
- if( h->mb.i_type == P_L0 && h->mb.i_partition == D_16x16 &&
- h->mb.i_cbp_luma == 0x00 && h->mb.i_cbp_chroma== 0x00 &&
- h->mb.cache.ref[0][x264_scan8[0]] == 0 )
+int x264_macroblock_probe_skip( x264_t *h, int b_bidir )
+{
+ if( CHROMA_FORMAT == CHROMA_444 )
+ return x264_macroblock_probe_skip_internal( h, b_bidir, 3, CHROMA_444 );
+ else if( CHROMA_FORMAT == CHROMA_422 )
+ return x264_macroblock_probe_skip_internal( h, b_bidir, 1, CHROMA_422 );
+ else
+ return x264_macroblock_probe_skip_internal( h, b_bidir, 1, CHROMA_420 );
+}
+
+/****************************************************************************
+ * DCT-domain noise reduction / adaptive deadzone
+ * from libavcodec
+ ****************************************************************************/
+
+void x264_noise_reduction_update( x264_t *h )
+{
+ h->nr_offset = h->nr_offset_denoise;
+ h->nr_residual_sum = h->nr_residual_sum_buf[0];
+ h->nr_count = h->nr_count_buf[0];
+ for( int cat = 0; cat < 3 + CHROMA444; cat++ )
{
- int mvp[2];
+ int dct8x8 = cat&1;
+ int size = dct8x8 ? 64 : 16;
+ const uint32_t *weight = dct8x8 ? x264_dct8_weight2_tab : x264_dct4_weight2_tab;
- x264_mb_predict_mv_pskip( h, mvp );
- if( h->mb.cache.mv[0][x264_scan8[0]][0] == mvp[0] &&
- h->mb.cache.mv[0][x264_scan8[0]][1] == mvp[1] )
+ if( h->nr_count[cat] > (dct8x8 ? (1<<16) : (1<<18)) )
{
- h->mb.i_type = P_SKIP;
- h->mb.qp[h->mb.i_mb_xy] = h->mb.i_last_qp; /* Needed */
- /* XXX qp reset may have issues when used in RD instead of the real encode */
+ for( int i = 0; i < size; i++ )
+ h->nr_residual_sum[cat][i] >>= 1;
+ h->nr_count[cat] >>= 1;
}
- }
- /* Check for B_SKIP */
- if( h->mb.i_type == B_DIRECT &&
- h->mb.i_cbp_luma == 0x00 && h->mb.i_cbp_chroma== 0x00 )
- {
- h->mb.i_type = B_SKIP;
- h->mb.qp[h->mb.i_mb_xy] = h->mb.i_last_qp; /* Needed */
- }
+ for( int i = 0; i < size; i++ )
+ h->nr_offset[cat][i] =
+ ((uint64_t)h->param.analyse.i_noise_reduction * h->nr_count[cat]
+ + h->nr_residual_sum[cat][i]/2)
+ / ((uint64_t)h->nr_residual_sum[cat][i] * weight[i]/256 + 1);
- if( h->mb.i_cbp_luma == 0 && h->mb.i_type != I_8x8 )
- h->mb.b_transform_8x8 = 0;
+ /* Don't denoise DC coefficients */
+ h->nr_offset[cat][0] = 0;
+ }
}
/*****************************************************************************
- * x264_macroblock_probe_skip:
- * Check if the current MB could be encoded as a [PB]_SKIP (it supposes you use
- * the previous QP
+ * RD only; 4 calls to this do not make up for one macroblock_encode.
+ * doesn't transform chroma dc.
*****************************************************************************/
-int x264_macroblock_probe_skip( x264_t *h, int b_bidir )
+static ALWAYS_INLINE void x264_macroblock_encode_p8x8_internal( x264_t *h, int i8, int plane_count, int chroma )
{
- DECLARE_ALIGNED( int16_t, dct4x4[16][4][4], 16 );
- DECLARE_ALIGNED( int16_t, dct2x2[2][2], 16 );
- DECLARE_ALIGNED( int, dctscan[16], 16 );
-
+ int b_decimate = h->mb.b_dct_decimate;
int i_qp = h->mb.i_qp;
- int mvp[2];
- int ch;
+ int x = i8&1;
+ int y = i8>>1;
+ int nz;
+ int chroma422 = chroma == CHROMA_422;
+
+ h->mb.i_cbp_chroma = 0;
+ h->mb.i_cbp_luma &= ~(1 << i8);
- int i8x8, i4x4;
- int i_decimate_mb;
+ if( !h->mb.b_skip_mc )
+ x264_mb_mc_8x8( h, i8 );
- if( !b_bidir )
+ if( h->mb.b_lossless )
{
- /* Get the MV */
- x264_mb_predict_mv_pskip( h, mvp );
- mvp[0] = x264_clip3( mvp[0], h->mb.mv_min[0], h->mb.mv_max[0] );
- mvp[1] = x264_clip3( mvp[1], h->mb.mv_min[1], h->mb.mv_max[1] );
-
- /* Motion compensation */
- h->mc.mc_luma( h->mb.pic.p_fref[0][0], h->mb.pic.i_stride[0],
- h->mb.pic.p_fdec[0], h->mb.pic.i_stride[0],
- mvp[0], mvp[1], 16, 16 );
+ for( int p = 0; p < plane_count; p++ )
+ {
+ pixel *p_fenc = h->mb.pic.p_fenc[p] + 8*x + 8*y*FENC_STRIDE;
+ pixel *p_fdec = h->mb.pic.p_fdec[p] + 8*x + 8*y*FDEC_STRIDE;
+ int nnz8x8 = 0;
+ if( h->mb.b_transform_8x8 )
+ {
+ nnz8x8 = h->zigzagf.sub_8x8( h->dct.luma8x8[4*p+i8], p_fenc, p_fdec );
+ STORE_8x8_NNZ( p, i8, nnz8x8 );
+ }
+ else
+ {
+ for( int i4 = i8*4; i4 < i8*4+4; i4++ )
+ {
+ nz = h->zigzagf.sub_4x4( h->dct.luma4x4[16*p+i4],
+ h->mb.pic.p_fenc[p]+block_idx_xy_fenc[i4],
+ h->mb.pic.p_fdec[p]+block_idx_xy_fdec[i4] );
+ h->mb.cache.non_zero_count[x264_scan8[16*p+i4]] = nz;
+ nnz8x8 |= nz;
+ }
+ }
+ h->mb.i_cbp_luma |= nnz8x8 << i8;
+ }
+ if( chroma == CHROMA_420 || chroma == CHROMA_422 )
+ {
+ for( int ch = 0; ch < 2; ch++ )
+ {
+ dctcoef dc;
+ pixel *p_fenc = h->mb.pic.p_fenc[1+ch] + 4*x + (chroma422?8:4)*y*FENC_STRIDE;
+ pixel *p_fdec = h->mb.pic.p_fdec[1+ch] + 4*x + (chroma422?8:4)*y*FDEC_STRIDE;
+
+ for( int i4x4 = 0; i4x4 <= chroma422; i4x4++ )
+ {
+ int offset = chroma422 ? 8*y + 2*i4x4 + x : i8;
+ nz = h->zigzagf.sub_4x4ac( h->dct.luma4x4[16+offset+ch*16], p_fenc+4*i4x4*FENC_STRIDE, p_fdec+4*i4x4*FDEC_STRIDE, &dc );
+ h->mb.cache.non_zero_count[x264_scan8[16+offset+ch*16]] = nz;
+ }
+ }
+ h->mb.i_cbp_chroma = 0x02;
+ }
}
+ else
+ {
+ if( h->mb.b_transform_8x8 )
+ {
+ for( int p = 0; p < plane_count; p++, i_qp = h->mb.i_chroma_qp )
+ {
+ int quant_cat = p ? CQM_8PC : CQM_8PY;
+ pixel *p_fenc = h->mb.pic.p_fenc[p] + 8*x + 8*y*FENC_STRIDE;
+ pixel *p_fdec = h->mb.pic.p_fdec[p] + 8*x + 8*y*FDEC_STRIDE;
+ ALIGNED_ARRAY_N( dctcoef, dct8x8,[64] );
+
+ h->dctf.sub8x8_dct8( dct8x8, p_fenc, p_fdec );
+ int nnz8x8 = x264_quant_8x8( h, dct8x8, i_qp, ctx_cat_plane[DCT_LUMA_8x8][p], 0, p, i8 );
+ if( nnz8x8 )
+ {
+ h->zigzagf.scan_8x8( h->dct.luma8x8[4*p+i8], dct8x8 );
- /* get luma diff */
- h->dctf.sub16x16_dct( dct4x4, h->mb.pic.p_fenc[0], h->mb.pic.i_stride[0],
- h->mb.pic.p_fdec[0], h->mb.pic.i_stride[0] );
+ if( b_decimate && !h->mb.b_trellis )
+ nnz8x8 = 4 <= h->quantf.decimate_score64( h->dct.luma8x8[4*p+i8] );
- for( i8x8 = 0, i_decimate_mb = 0; i8x8 < 4; i8x8++ )
- {
- /* encode one 4x4 block */
- for( i4x4 = 0; i4x4 < 4; i4x4++ )
+ if( nnz8x8 )
+ {
+ h->quantf.dequant_8x8( dct8x8, h->dequant8_mf[quant_cat], i_qp );
+ h->dctf.add8x8_idct8( p_fdec, dct8x8 );
+ STORE_8x8_NNZ( p, i8, 1 );
+ h->mb.i_cbp_luma |= 1 << i8;
+ }
+ else
+ STORE_8x8_NNZ( p, i8, 0 );
+ }
+ else
+ STORE_8x8_NNZ( p, i8, 0 );
+ }
+ }
+ else
{
- const int idx = i8x8 * 4 + i4x4;
+ for( int p = 0; p < plane_count; p++, i_qp = h->mb.i_chroma_qp )
+ {
+ int quant_cat = p ? CQM_4PC : CQM_4PY;
+ pixel *p_fenc = h->mb.pic.p_fenc[p] + 8*x + 8*y*FENC_STRIDE;
+ pixel *p_fdec = h->mb.pic.p_fdec[p] + 8*x + 8*y*FDEC_STRIDE;
+ int i_decimate_8x8 = b_decimate ? 0 : 4;
+ ALIGNED_ARRAY_N( dctcoef, dct4x4,[4],[16] );
+ int nnz8x8 = 0;
- quant_4x4( h, dct4x4[idx], (int(*)[4][4])def_quant4_mf, i_qp, 0 );
- scan_zigzag_4x4full( dctscan, dct4x4[idx] );
+ h->dctf.sub8x8_dct( dct4x4, p_fenc, p_fdec );
+ STORE_8x8_NNZ( p, i8, 0 );
- i_decimate_mb += x264_mb_decimate_score( dctscan, 16 );
+ if( h->mb.b_noise_reduction )
+ for( int idx = 0; idx < 4; idx++ )
+ h->quantf.denoise_dct( dct4x4[idx], h->nr_residual_sum[0+!!p*2], h->nr_offset[0+!!p*2], 16 );
+
+ if( h->mb.b_trellis )
+ {
+ for( int i4x4 = 0; i4x4 < 4; i4x4++ )
+ {
+ if( x264_quant_4x4_trellis( h, dct4x4[i4x4], quant_cat, i_qp, ctx_cat_plane[DCT_LUMA_4x4][p], 0, !!p, i8*4+i4x4+p*16 ) )
+ {
+ h->zigzagf.scan_4x4( h->dct.luma4x4[p*16+i8*4+i4x4], dct4x4[i4x4] );
+ h->quantf.dequant_4x4( dct4x4[i4x4], h->dequant4_mf[quant_cat], i_qp );
+ if( i_decimate_8x8 < 4 )
+ i_decimate_8x8 += h->quantf.decimate_score16( h->dct.luma4x4[p*16+i8*4+i4x4] );
+ h->mb.cache.non_zero_count[x264_scan8[p*16+i8*4+i4x4]] = 1;
+ nnz8x8 = 1;
+ }
+ }
+ }
+ else
+ {
+ nnz8x8 = nz = h->quantf.quant_4x4x4( dct4x4, h->quant4_mf[quant_cat][i_qp], h->quant4_bias[quant_cat][i_qp] );
+ if( nz )
+ {
+ FOREACH_BIT( i4x4, 0, nz )
+ {
+ h->zigzagf.scan_4x4( h->dct.luma4x4[p*16+i8*4+i4x4], dct4x4[i4x4] );
+ h->quantf.dequant_4x4( dct4x4[i4x4], h->dequant4_mf[quant_cat], i_qp );
+ if( i_decimate_8x8 < 4 )
+ i_decimate_8x8 += h->quantf.decimate_score16( h->dct.luma4x4[p*16+i8*4+i4x4] );
+ h->mb.cache.non_zero_count[x264_scan8[p*16+i8*4+i4x4]] = 1;
+ }
+ }
+ }
+ if( nnz8x8 )
+ {
+ /* decimate this 8x8 block */
+ if( i_decimate_8x8 < 4 )
+ STORE_8x8_NNZ( p, i8, 0 );
+ else
+ {
+ h->dctf.add8x8_idct( p_fdec, dct4x4 );
+ h->mb.i_cbp_luma |= 1 << i8;
+ }
+ }
+ }
+ }
- if( i_decimate_mb >= 6 )
+ if( chroma == CHROMA_420 || chroma == CHROMA_422 )
+ {
+ i_qp = h->mb.i_chroma_qp;
+ for( int ch = 0; ch < 2; ch++ )
{
- /* not as P_SKIP */
- return 0;
+ ALIGNED_ARRAY_N( dctcoef, dct4x4,[2],[16] );
+ pixel *p_fenc = h->mb.pic.p_fenc[1+ch] + 4*x + (chroma422?8:4)*y*FENC_STRIDE;
+ pixel *p_fdec = h->mb.pic.p_fdec[1+ch] + 4*x + (chroma422?8:4)*y*FDEC_STRIDE;
+
+ for( int i4x4 = 0; i4x4 <= chroma422; i4x4++ )
+ {
+ h->dctf.sub4x4_dct( dct4x4[i4x4], p_fenc + 4*i4x4*FENC_STRIDE, p_fdec + 4*i4x4*FDEC_STRIDE );
+
+ if( h->mb.b_noise_reduction )
+ h->quantf.denoise_dct( dct4x4[i4x4], h->nr_residual_sum[2], h->nr_offset[2], 16 );
+ dct4x4[i4x4][0] = 0;
+
+ if( h->mb.b_trellis )
+ nz = x264_quant_4x4_trellis( h, dct4x4[i4x4], CQM_4PC, i_qp, DCT_CHROMA_AC, 0, 1, 0 );
+ else
+ nz = h->quantf.quant_4x4( dct4x4[i4x4], h->quant4_mf[CQM_4PC][i_qp], h->quant4_bias[CQM_4PC][i_qp] );
+
+ int offset = chroma422 ? ((5*i8) & 0x09) + 2*i4x4 : i8;
+ h->mb.cache.non_zero_count[x264_scan8[16+offset+ch*16]] = nz;
+ if( nz )
+ {
+ h->zigzagf.scan_4x4( h->dct.luma4x4[16+offset+ch*16], dct4x4[i4x4] );
+ h->quantf.dequant_4x4( dct4x4[i4x4], h->dequant4_mf[CQM_4PC], i_qp );
+ h->dctf.add4x4_idct( p_fdec + 4*i4x4*FDEC_STRIDE, dct4x4[i4x4] );
+ }
+ }
}
+ h->mb.i_cbp_chroma = 0x02;
}
}
+}
- /* encode chroma */
- i_qp = i_chroma_qp_table[x264_clip3( i_qp + h->pps->i_chroma_qp_index_offset, 0, 51 )];
+void x264_macroblock_encode_p8x8( x264_t *h, int i8 )
+{
+ if( CHROMA444 )
+ x264_macroblock_encode_p8x8_internal( h, i8, 3, CHROMA_444 );
+ else if( CHROMA_FORMAT == CHROMA_422 )
+ x264_macroblock_encode_p8x8_internal( h, i8, 1, CHROMA_422 );
+ else
+ x264_macroblock_encode_p8x8_internal( h, i8, 1, CHROMA_420 );
+}
- for( ch = 0; ch < 2; ch++ )
- {
- const int i_stride = h->mb.pic.i_stride[1+ch];
- uint8_t *p_src = h->mb.pic.p_fenc[1+ch];
- uint8_t *p_dst = h->mb.pic.p_fdec[1+ch];
+/*****************************************************************************
+ * RD only, luma only (for 4:2:0)
+ *****************************************************************************/
+static ALWAYS_INLINE void x264_macroblock_encode_p4x4_internal( x264_t *h, int i4, int plane_count )
+{
+ int i_qp = h->mb.i_qp;
- if( !b_bidir )
- {
- h->mc.mc_chroma( h->mb.pic.p_fref[0][0][4+ch], i_stride,
- h->mb.pic.p_fdec[1+ch], i_stride,
- mvp[0], mvp[1], 8, 8 );
- }
+ for( int p = 0; p < plane_count; p++, i_qp = h->mb.i_chroma_qp )
+ {
+ int quant_cat = p ? CQM_4PC : CQM_4PY;
+ pixel *p_fenc = &h->mb.pic.p_fenc[p][block_idx_xy_fenc[i4]];
+ pixel *p_fdec = &h->mb.pic.p_fdec[p][block_idx_xy_fdec[i4]];
+ int nz;
- h->dctf.sub8x8_dct( dct4x4, p_src, i_stride, p_dst, i_stride );
+ /* Don't need motion compensation as this function is only used in qpel-RD, which caches pixel data. */
- /* calculate dct DC */
- dct2x2[0][0] = dct4x4[0][0][0];
- dct2x2[0][1] = dct4x4[1][0][0];
- dct2x2[1][0] = dct4x4[2][0][0];
- dct2x2[1][1] = dct4x4[3][0][0];
- h->dctf.dct2x2dc( dct2x2 );
- quant_2x2_dc( h, dct2x2, (int(*)[4][4])def_quant4_mf, i_qp, 0 );
- if( dct2x2[0][0] || dct2x2[0][1] || dct2x2[1][0] || dct2x2[1][1] )
+ if( h->mb.b_lossless )
{
- /* can't be */
- return 0;
+ nz = h->zigzagf.sub_4x4( h->dct.luma4x4[p*16+i4], p_fenc, p_fdec );
+ h->mb.cache.non_zero_count[x264_scan8[p*16+i4]] = nz;
}
-
- /* calculate dct coeffs */
- for( i4x4 = 0, i_decimate_mb = 0; i4x4 < 4; i4x4++ )
+ else
{
- quant_4x4( h, dct4x4[i4x4], (int(*)[4][4])def_quant4_mf, i_qp, 0 );
- scan_zigzag_4x4( dctscan, dct4x4[i4x4] );
-
- i_decimate_mb += x264_mb_decimate_score( dctscan, 15 );
- if( i_decimate_mb >= 7 )
+ ALIGNED_ARRAY_N( dctcoef, dct4x4,[16] );
+ h->dctf.sub4x4_dct( dct4x4, p_fenc, p_fdec );
+ nz = x264_quant_4x4( h, dct4x4, i_qp, ctx_cat_plane[DCT_LUMA_4x4][p], 0, p, i4 );
+ h->mb.cache.non_zero_count[x264_scan8[p*16+i4]] = nz;
+ if( nz )
{
- return 0;
+ h->zigzagf.scan_4x4( h->dct.luma4x4[p*16+i4], dct4x4 );
+ h->quantf.dequant_4x4( dct4x4, h->dequant4_mf[quant_cat], i_qp );
+ h->dctf.add4x4_idct( p_fdec, dct4x4 );
}
}
}
+}
- return 1;
+void x264_macroblock_encode_p4x4( x264_t *h, int i8 )
+{
+ if( CHROMA444 )
+ x264_macroblock_encode_p4x4_internal( h, i8, 3 );
+ else
+ x264_macroblock_encode_p4x4_internal( h, i8, 1 );
}
projects / x264 / blobdiff