vp8/encoder/encodeintra.c

   1 /*
   2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
   3  *
   4  *  Use of this source code is governed by a BSD-style license
   5  *  that can be found in the LICENSE file in the root of the source
   6  *  tree. An additional intellectual property rights grant can be found
   7  *  in the file PATENTS.  All contributing project authors may
   8  *  be found in the AUTHORS file in the root of the source tree.
   9  */
  10
  11
  12 #include "vpx_ports/config.h"
  13 #include "vp8/common/idct.h"
  14 #include "quantize.h"
  15 #include "vp8/common/reconintra.h"
  16 #include "vp8/common/reconintra4x4.h"
  17 #include "encodemb.h"
  18 #include "vp8/common/invtrans.h"
  19 #include "vp8/common/recon.h"
  20 #include "dct.h"
  21 #include "vp8/common/g_common.h"
  22 #include "encodeintra.h"
  23
  24 #define intra4x4ibias_rate    128
  25 #define intra4x4pbias_rate    256
  26
  27
  28 void vp8_update_mode_context(int *abmode, int *lbmode, int i, int best_mode)
  29 {
  30     if (i < 12)
  31     {
  32         abmode[i+4] = best_mode;
  33     }
  34
  35     if ((i & 3) != 3)
  36     {
  37         lbmode[i+1] = best_mode;
  38     }
  39
  40 }
  41 #if CONFIG_RUNTIME_CPU_DETECT
  42 #define IF_RTCD(x) (x)
  43 #else
  44 #define IF_RTCD(x) NULL
  45 #endif
  46 void vp8_encode_intra4x4block(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *x, BLOCK *be, BLOCKD *b, int best_mode)
  47 {
  48     vp8_predict_intra4x4(b, best_mode, b->predictor);
  49
  50     ENCODEMB_INVOKE(&rtcd->encodemb, subb)(be, b, 16);
  51
  52     x->vp8_short_fdct4x4(be->src_diff, be->coeff, 32);
  53
  54     x->quantize_b(be, b);
  55
  56     vp8_inverse_transform_b(IF_RTCD(&rtcd->common->idct), b, 32);
  57
  58     RECON_INVOKE(&rtcd->common->recon, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
  59 }
  60
  61 void vp8_encode_intra4x4block_rd(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *x, BLOCK *be, BLOCKD *b, int best_mode)
  62 {
  63     vp8_predict_intra4x4(b, best_mode, b->predictor);
  64
  65     ENCODEMB_INVOKE(&rtcd->encodemb, subb)(be, b, 16);
  66
  67     x->vp8_short_fdct4x4(be->src_diff, be->coeff, 32);
  68
  69     x->quantize_b(be, b);
  70
  71     IDCT_INVOKE(&rtcd->common->idct, idct16)(b->dqcoeff, b->diff, 32);
  72
  73     RECON_INVOKE(&rtcd->common->recon, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
  74 }
  75
  76 void vp8_encode_intra4x4mby(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *mb)
  77 {
  78     int i;
  79
  80     MACROBLOCKD *x = &mb->e_mbd;
  81     vp8_intra_prediction_down_copy(x);
  82
  83     for (i = 0; i < 16; i++)
  84     {
  85         BLOCK *be = &mb->block[i];
  86         BLOCKD *b = &x->block[i];
  87
  88         vp8_encode_intra4x4block(rtcd, mb, be, b, b->bmi.mode);
  89     }
  90
  91     return;
  92 }
  93
  94 void vp8_encode_intra16x16mby(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *x)
  95 {
  96     int b;
  97
  98     vp8_build_intra_predictors_mby_ptr(&x->e_mbd);
  99
 100     ENCODEMB_INVOKE(&rtcd->encodemb, submby)(x->src_diff, x->src.y_buffer, x->e_mbd.predictor, x->src.y_stride);
 101
 102     vp8_transform_intra_mby(x);
 103
 104     vp8_quantize_mby(x);
 105
 106 #if !(CONFIG_REALTIME_ONLY)
 107 #if 1
 108     if (x->optimize)
 109         vp8_optimize_mby(x, rtcd);
 110
 111 #endif
 112 #endif
 113
 114     vp8_inverse_transform_mby(IF_RTCD(&rtcd->common->idct), &x->e_mbd);
 115
 116     RECON_INVOKE(&rtcd->common->recon, recon_mby)
 117         (IF_RTCD(&rtcd->common->recon), &x->e_mbd);
 118
 119     // make sure block modes are set the way we want them for context updates
 120     for (b = 0; b < 16; b++)
 121     {
 122         BLOCKD *d = &x->e_mbd.block[b];
 123
 124         switch (x->e_mbd.mode_info_context->mbmi.mode)
 125         {
 126
 127         case DC_PRED:
 128             d->bmi.mode = B_DC_PRED;
 129             break;
 130         case V_PRED:
 131             d->bmi.mode = B_VE_PRED;
 132             break;
 133         case H_PRED:
 134             d->bmi.mode = B_HE_PRED;
 135             break;
 136         case TM_PRED:
 137             d->bmi.mode = B_TM_PRED;
 138             break;
 139         default:
 140             d->bmi.mode = B_DC_PRED;
 141             break;
 142
 143         }
 144     }
 145 }
 146
 147 void vp8_encode_intra16x16mbuv(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *x)
 148 {
 149     vp8_build_intra_predictors_mbuv(&x->e_mbd);
 150
 151     ENCODEMB_INVOKE(&rtcd->encodemb, submbuv)(x->src_diff, x->src.u_buffer, x->src.v_buffer, x->e_mbd.predictor, x->src.uv_stride);
 152
 153     vp8_transform_mbuv(x);
 154
 155     vp8_quantize_mbuv(x);
 156
 157 #if !(CONFIG_REALTIME_ONLY)
 158 #if 1
 159
 160     if (x->optimize==2 ||(x->optimize && x->rddiv > 1))
 161         vp8_optimize_mbuv(x, rtcd);
 162
 163 #endif
 164 #endif
 165
 166     vp8_inverse_transform_mbuv(IF_RTCD(&rtcd->common->idct), &x->e_mbd);
 167
 168     vp8_recon_intra_mbuv(IF_RTCD(&rtcd->common->recon), &x->e_mbd);
 169 }
 170
 171 void vp8_encode_intra16x16mbuvrd(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *x)
 172 {
 173     vp8_build_intra_predictors_mbuv(&x->e_mbd);
 174
 175     ENCODEMB_INVOKE(&rtcd->encodemb, submbuv)(x->src_diff, x->src.u_buffer, x->src.v_buffer, x->e_mbd.predictor, x->src.uv_stride);
 176
 177     vp8_transform_mbuv(x);
 178
 179     vp8_quantize_mbuv(x);
 180
 181     vp8_inverse_transform_mbuv(IF_RTCD(&rtcd->common->idct), &x->e_mbd);
 182
 183     vp8_recon_intra_mbuv(IF_RTCD(&rtcd->common->recon), &x->e_mbd);
 184 }