Skip to content

GitLab

Commit 1eb8b071 authored by Fiona Glaser's avatar Fiona Glaser
Browse files
Options

Improve subme7 at low QPs and add subme7 support in lossless mode

parent 01d7deaf
Hide whitespace changes
Inline Side-by-side
Showing with 99 additions and 76 deletions
encoder/analyse.c
View file @ 1eb8b071
......@@ -782,7 +782,8 @@ static void x264_intra_rd_refine( x264_t *h, x264_mb_analysis_t *a )
uint8_t *p_dst = h->mb.pic.p_fdec[0];
int i, j, idx, x, y;
int i_max, i_satd, i_best, i_mode, i_thresh;
int i_max, i_mode, i_thresh;
uint64_t i_satd, i_best;
int i_pred_mode;
int predict_mode[9];
h->mb.i_skip_intra = 0;
......@@ -810,7 +811,7 @@ static void x264_intra_rd_refine( x264_t *h, x264_mb_analysis_t *a )
for( idx = 0; idx < 16; idx++ )
{
uint8_t *p_dst_by = p_dst + block_idx_xy_fdec[idx];
i_best = COST_MAX;
i_best = COST_MAX64;
i_pred_mode = x264_mb_predict_intra4x4_mode( h, idx );
......@@ -860,7 +861,7 @@ static void x264_intra_rd_refine( x264_t *h, x264_mb_analysis_t *a )
int j;
i_thresh = a->i_satd_i8x8_dir[a->i_predict8x8[idx]][idx] * 11/8;
i_best = COST_MAX;
i_best = COST_MAX64;
i_pred_mode = x264_mb_predict_intra4x4_mode( h, 4*idx );
x = idx&1;
y = idx>>1;
......
encoder/encoder.c
View file @ 1eb8b071
......@@ -410,7 +410,6 @@ static int x264_validate_parameters( x264_t *h )
h->param.analyse.i_trellis = 0;
h->param.analyse.b_fast_pskip = 0;
h->param.analyse.i_noise_reduction = 0;
h->param.analyse.i_subpel_refine = x264_clip3( h->param.analyse.i_subpel_refine, 1, 6 );
}
if( h->param.rc.i_rc_method == X264_RC_CQP )
{
......
encoder/macroblock.c
View file @ 1eb8b071
......@@ -747,76 +747,96 @@ void x264_macroblock_encode_p8x8( x264_t *h, int i8 )
uint8_t *p_fenc = h->mb.pic.p_fenc[0] + (i8&1)*8 + (i8>>1)*8*FENC_STRIDE;
uint8_t *p_fdec = h->mb.pic.p_fdec[0] + (i8&1)*8 + (i8>>1)*8*FDEC_STRIDE;
int b_decimate = h->sh.i_type == SLICE_TYPE_B || h->param.analyse.b_dct_decimate;
int nnz8x8;
int nnz8x8 = 0;
int ch;
x264_mb_mc_8x8( h, i8 );
if( h->mb.b_transform_8x8 )
if( h->mb.b_lossless )
{
DECLARE_ALIGNED_16( int16_t dct8x8[8][8] );
h->dctf.sub8x8_dct8( dct8x8, p_fenc, p_fdec );
h->quantf.quant_8x8( dct8x8, h->quant8_mf[CQM_8PY][i_qp], h->quant8_bias[CQM_8PY][i_qp] );
h->zigzagf.scan_8x8( h->dct.luma8x8[i8], dct8x8 );
if( b_decimate )
nnz8x8 = 4 <= x264_mb_decimate_score( h->dct.luma8x8[i8], 64 );
else
nnz8x8 = array_non_zero( dct8x8 );
if( nnz8x8 )
int i4;
for( i4 = i8*4; i4 < i8*4+4; i4++ )
{
h->quantf.dequant_8x8( dct8x8, h->dequant8_mf[CQM_8PY], i_qp );
h->dctf.add8x8_idct8( p_fdec, dct8x8 );
h->zigzagf.sub_4x4( h->dct.luma4x4[i4],
h->mb.pic.p_fenc[0]+block_idx_xy_fenc[i4],
h->mb.pic.p_fdec[0]+block_idx_xy_fdec[i4] );
nnz8x8 |= array_non_zero( h->dct.luma4x4[i4] );
}
for( ch = 0; ch < 2; ch++ )
{
p_fenc = h->mb.pic.p_fenc[1+ch] + (i8&1)*4 + (i8>>1)*4*FENC_STRIDE;
p_fdec = h->mb.pic.p_fdec[1+ch] + (i8&1)*4 + (i8>>1)*4*FDEC_STRIDE;
h->zigzagf.sub_4x4( h->dct.luma4x4[16+i8+ch*4], p_fenc, p_fdec );
h->dct.luma4x4[16+i8+ch*4][0] = 0;
}
}
else
{
int i4;
DECLARE_ALIGNED_16( int16_t dct4x4[4][4][4] );
h->dctf.sub8x8_dct( dct4x4, p_fenc, p_fdec );
for( i4 = 0; i4 < 4; i4++ )
h->quantf.quant_4x4( dct4x4[i4], h->quant4_mf[CQM_4PY][i_qp], h->quant4_bias[CQM_4PY][i_qp] );
for( i4 = 0; i4 < 4; i4++ )
h->zigzagf.scan_4x4( h->dct.luma4x4[i8*4+i4], dct4x4[i4] );
if( b_decimate )
if( h->mb.b_transform_8x8 )
{
int i_decimate_8x8 = 0;
for( i4 = 0; i4 < 4 && i_decimate_8x8 < 4; i4++ )
i_decimate_8x8 += x264_mb_decimate_score( h->dct.luma4x4[i8*4+i4], 16 );
nnz8x8 = 4 <= i_decimate_8x8;
DECLARE_ALIGNED_16( int16_t dct8x8[8][8] );
h->dctf.sub8x8_dct8( dct8x8, p_fenc, p_fdec );
h->quantf.quant_8x8( dct8x8, h->quant8_mf[CQM_8PY][i_qp], h->quant8_bias[CQM_8PY][i_qp] );
h->zigzagf.scan_8x8( h->dct.luma8x8[i8], dct8x8 );
if( b_decimate )
nnz8x8 = 4 <= x264_mb_decimate_score( h->dct.luma8x8[i8], 64 );
else
nnz8x8 = array_non_zero( dct8x8 );
if( nnz8x8 )
{
h->quantf.dequant_8x8( dct8x8, h->dequant8_mf[CQM_8PY], i_qp );
h->dctf.add8x8_idct8( p_fdec, dct8x8 );
}
}
else
nnz8x8 = array_non_zero( dct4x4 );
if( nnz8x8 )
{
int i4;
DECLARE_ALIGNED_16( int16_t dct4x4[4][4][4] );
h->dctf.sub8x8_dct( dct4x4, p_fenc, p_fdec );
for( i4 = 0; i4 < 4; i4++ )
h->quantf.dequant_4x4( dct4x4[i4], h->dequant4_mf[CQM_4PY], i_qp );
h->dctf.add8x8_idct( p_fdec, dct4x4 );
h->quantf.quant_4x4( dct4x4[i4], h->quant4_mf[CQM_4PY][i_qp], h->quant4_bias[CQM_4PY][i_qp] );
for( i4 = 0; i4 < 4; i4++ )
h->zigzagf.scan_4x4( h->dct.luma4x4[i8*4+i4], dct4x4[i4] );
if( b_decimate )
{
int i_decimate_8x8 = 0;
for( i4 = 0; i4 < 4 && i_decimate_8x8 < 4; i4++ )
i_decimate_8x8 += x264_mb_decimate_score( h->dct.luma4x4[i8*4+i4], 16 );
nnz8x8 = 4 <= i_decimate_8x8;
}
else
nnz8x8 = array_non_zero( dct4x4 );
if( nnz8x8 )
{
for( i4 = 0; i4 < 4; i4++ )
h->quantf.dequant_4x4( dct4x4[i4], h->dequant4_mf[CQM_4PY], i_qp );
h->dctf.add8x8_idct( p_fdec, dct4x4 );
}
}
}
i_qp = h->mb.i_chroma_qp;
i_qp = h->mb.i_chroma_qp;
for( ch = 0; ch < 2; ch++ )
{
DECLARE_ALIGNED_16( int16_t dct4x4[4][4] );
p_fenc = h->mb.pic.p_fenc[1+ch] + (i8&1)*4 + (i8>>1)*4*FENC_STRIDE;
p_fdec = h->mb.pic.p_fdec[1+ch] + (i8&1)*4 + (i8>>1)*4*FDEC_STRIDE;
h->dctf.sub4x4_dct( dct4x4, p_fenc, p_fdec );
h->quantf.quant_4x4( dct4x4, h->quant4_mf[CQM_4PC][i_qp], h->quant4_bias[CQM_4PC][i_qp] );
h->zigzagf.scan_4x4( h->dct.luma4x4[16+i8+ch*4], dct4x4 );
h->dct.luma4x4[16+i8+ch*4][0] = 0;
if( array_non_zero( dct4x4 ) )
for( ch = 0; ch < 2; ch++ )
{
h->quantf.dequant_4x4( dct4x4, h->dequant4_mf[CQM_4PC], i_qp );
h->dctf.add4x4_idct( p_fdec, dct4x4 );
DECLARE_ALIGNED_16( int16_t dct4x4[4][4] );
p_fenc = h->mb.pic.p_fenc[1+ch] + (i8&1)*4 + (i8>>1)*4*FENC_STRIDE;
p_fdec = h->mb.pic.p_fdec[1+ch] + (i8&1)*4 + (i8>>1)*4*FDEC_STRIDE;
h->dctf.sub4x4_dct( dct4x4, p_fenc, p_fdec );
h->quantf.quant_4x4( dct4x4, h->quant4_mf[CQM_4PC][i_qp], h->quant4_bias[CQM_4PC][i_qp] );
h->zigzagf.scan_4x4( h->dct.luma4x4[16+i8+ch*4], dct4x4 );
h->dct.luma4x4[16+i8+ch*4][0] = 0;
if( array_non_zero( dct4x4 ) )
{
h->quantf.dequant_4x4( dct4x4, h->dequant4_mf[CQM_4PC], i_qp );
h->dctf.add4x4_idct( p_fdec, dct4x4 );
}
}
}
h->mb.i_cbp_luma &= ~(1 << i8);
h->mb.i_cbp_luma |= nnz8x8 << i8;
h->mb.i_cbp_chroma = 0x02;
......
encoder/me.c
View file @ 1eb8b071
......@@ -913,7 +913,7 @@ int x264_me_refine_bidir( x264_t *h, x264_me_t *m0, x264_me_t *m1, int i_weight
{ \
if( satd <= bsatd * SATD_THRESH )\
{ \
int cost; \
uint64_t cost; \
*(uint32_t*)cache_mv = *(uint32_t*)cache_mv2 = pack16to32_mask(mx,my); \
cost = x264_rd_cost_part( h, i_lambda2, i8, m->i_pixel ); \
COPY4_IF_LT( bcost, cost, bmx, mx, bmy, my, dir, do_dir?mdir:dir ); \
......@@ -934,7 +934,7 @@ void x264_me_refine_qpel_rd( x264_t *h, x264_me_t *m, int i_lambda2, int i8 )
const int i_pixel = m->i_pixel;
DECLARE_ALIGNED_16( uint8_t pix[16*16] );
int bcost = m->i_pixel == PIXEL_16x16 ? m->cost : COST_MAX;
uint64_t bcost = m->i_pixel == PIXEL_16x16 ? m->cost : COST_MAX64;
int bmx = m->mv[0];
int bmy = m->mv[1];
int omx = bmx;
......
encoder/me.h
View file @ 1eb8b071
......@@ -25,6 +25,7 @@
#define X264_ME_H
#define COST_MAX (1<<28)
#define COST_MAX64 (1ULL<<60)
typedef struct
{
......@@ -54,7 +55,7 @@ static inline void x264_me_search( x264_t *h, x264_me_t *m, int16_t (*mvc)[2], i
void x264_me_refine_qpel( x264_t *h, x264_me_t *m );
void x264_me_refine_qpel_rd( x264_t *h, x264_me_t *m, int i_lambda2, int i8 );
int x264_me_refine_bidir( x264_t *h, x264_me_t *m0, x264_me_t *m1, int i_weight );
int x264_rd_cost_part( x264_t *h, int i_lambda2, int i8, int i_pixel );
uint64_t x264_rd_cost_part( x264_t *h, int i_lambda2, int i8, int i_pixel );
extern uint16_t *x264_cost_mv_fpel[52][4];
......
encoder/rdo.c
View file @ 1eb8b071
......@@ -101,9 +101,11 @@ static int x264_rd_cost_mb( x264_t *h, int i_lambda2 )
return i_ssd + i_bits;
}
int x264_rd_cost_part( x264_t *h, int i_lambda2, int i8, int i_pixel )
/* subpartition RD functions use 8 bits more precision to avoid large rounding errors at low QPs */
uint64_t x264_rd_cost_part( x264_t *h, int i_lambda2, int i8, int i_pixel )
{
int i_ssd, i_bits;
uint64_t i_ssd, i_bits;
if( i_pixel == PIXEL_16x16 )
{
......@@ -128,19 +130,19 @@ int x264_rd_cost_part( x264_t *h, int i_lambda2, int i8, int i_pixel )
x264_cabac_t cabac_tmp;
COPY_CABAC;
x264_partition_size_cabac( h, &cabac_tmp, i8, i_pixel );
i_bits = ( (uint64_t)cabac_tmp.f8_bits_encoded * i_lambda2 + 32768 ) >> 16;
i_bits = ( (uint64_t)cabac_tmp.f8_bits_encoded * i_lambda2 + 128 ) >> 8;
}
else
{
i_bits = ( x264_partition_size_cavlc( h, i8, i_pixel ) * i_lambda2 + 128 ) >> 8;
i_bits = x264_partition_size_cavlc( h, i8, i_pixel ) * i_lambda2;
}
return i_ssd + i_bits;
return (i_ssd<<8) + i_bits;
}
int x264_rd_cost_i8x8( x264_t *h, int i_lambda2, int i8, int i_mode )
uint64_t x264_rd_cost_i8x8( x264_t *h, int i_lambda2, int i8, int i_mode )
{
int i_ssd, i_bits;
uint64_t i_ssd, i_bits;
x264_mb_encode_i8x8( h, i8, h->mb.i_qp );
i_ssd = ssd_plane( h, PIXEL_8x8, 0, (i8&1)*8, (i8>>1)*8 );
......@@ -150,19 +152,19 @@ int x264_rd_cost_i8x8( x264_t *h, int i_lambda2, int i8, int i_mode )
x264_cabac_t cabac_tmp;
COPY_CABAC;
x264_partition_i8x8_size_cabac( h, &cabac_tmp, i8, i_mode );
i_bits = ( (uint64_t)cabac_tmp.f8_bits_encoded * i_lambda2 + 32768 ) >> 16;
i_bits = ( (uint64_t)cabac_tmp.f8_bits_encoded * i_lambda2 + 128 ) >> 8;
}
else
{
i_bits = ( x264_partition_i8x8_size_cavlc( h, i8, i_mode ) * i_lambda2 + 128 ) >> 8;
i_bits = x264_partition_i8x8_size_cavlc( h, i8, i_mode ) * i_lambda2;
}
return i_ssd + i_bits;
return (i_ssd<<8) + i_bits;
}
int x264_rd_cost_i4x4( x264_t *h, int i_lambda2, int i4, int i_mode )
uint64_t x264_rd_cost_i4x4( x264_t *h, int i_lambda2, int i4, int i_mode )
{
int i_ssd, i_bits;
uint64_t i_ssd, i_bits;
x264_mb_encode_i4x4( h, i4, h->mb.i_qp );
i_ssd = ssd_plane( h, PIXEL_4x4, 0, block_idx_x[i4]*4, block_idx_y[i4]*4 );
......@@ -172,19 +174,19 @@ int x264_rd_cost_i4x4( x264_t *h, int i_lambda2, int i4, int i_mode )
x264_cabac_t cabac_tmp;
COPY_CABAC;
x264_partition_i4x4_size_cabac( h, &cabac_tmp, i4, i_mode );
i_bits = ( (uint64_t)cabac_tmp.f8_bits_encoded * i_lambda2 + 32768 ) >> 16;
i_bits = ( (uint64_t)cabac_tmp.f8_bits_encoded * i_lambda2 + 128 ) >> 8;
}
else
{
i_bits = ( x264_partition_i4x4_size_cavlc( h, i4, i_mode ) * i_lambda2 + 128 ) >> 8;
i_bits = x264_partition_i4x4_size_cavlc( h, i4, i_mode ) * i_lambda2;
}
return i_ssd + i_bits;
return (i_ssd<<8) + i_bits;
}
int x264_rd_cost_i8x8_chroma( x264_t *h, int i_lambda2, int i_mode, int b_dct )
uint64_t x264_rd_cost_i8x8_chroma( x264_t *h, int i_lambda2, int i_mode, int b_dct )
{
int i_ssd, i_bits;
uint64_t i_ssd, i_bits;
if( b_dct )
x264_mb_encode_8x8_chroma( h, 0, h->mb.i_chroma_qp );
......@@ -198,14 +200,14 @@ int x264_rd_cost_i8x8_chroma( x264_t *h, int i_lambda2, int i_mode, int b_dct )
x264_cabac_t cabac_tmp;
COPY_CABAC;
x264_i8x8_chroma_size_cabac( h, &cabac_tmp );
i_bits = ( (uint64_t)cabac_tmp.f8_bits_encoded * i_lambda2 + 32768 ) >> 16;
i_bits = ( (uint64_t)cabac_tmp.f8_bits_encoded * i_lambda2 + 128 ) >> 8;
}
else
{
i_bits = ( x264_i8x8_chroma_size_cavlc( h ) * i_lambda2 + 128 ) >> 8;
i_bits = x264_i8x8_chroma_size_cavlc( h ) * i_lambda2;
}
return i_ssd + i_bits;
return (i_ssd<<8) + i_bits;
}
/****************************************************************************
* Trellis RD quantization
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment