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 "idct.h"
  14 #include "quantize.h"
  15 #include "reconintra.h"
  16 #include "reconintra4x4.h"
  17 #include "encodemb.h"
  18 #include "invtrans.h"
  19 #include "recon.h"
  20 #include "dct.h"
  21 #include "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_intra4x4mby(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *mb)
  62 {
  63     int i;
  64
  65     MACROBLOCKD *x = &mb->e_mbd;
  66     vp8_intra_prediction_down_copy(x);
  67
  68     for (i = 0; i < 16; i++)
  69     {
  70         BLOCK *be = &mb->block[i];
  71         BLOCKD *b = &x->block[i];
  72
  73         vp8_encode_intra4x4block(rtcd, mb, be, b, b->bmi.mode);
  74     }
  75
  76     return;
  77 }
  78
  79 void vp8_encode_intra16x16mby(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *x)
  80 {
  81     int b;
  82
  83     vp8_build_intra_predictors_mby_ptr(&x->e_mbd);
  84
  85     ENCODEMB_INVOKE(&rtcd->encodemb, submby)(x->src_diff, x->src.y_buffer, x->e_mbd.predictor, x->src.y_stride);
  86
  87     vp8_transform_intra_mby(x);
  88
  89     vp8_quantize_mby(x);
  90
  91 #if !(CONFIG_REALTIME_ONLY)
  92 #if 1
  93     if (x->optimize)
  94         vp8_optimize_mby(x, rtcd);
  95
  96 #endif
  97 #endif
  98
  99     vp8_inverse_transform_mby(IF_RTCD(&rtcd->common->idct), &x->e_mbd);
 100
 101     RECON_INVOKE(&rtcd->common->recon, recon_mby)
 102         (IF_RTCD(&rtcd->common->recon), &x->e_mbd);
 103
 104     // make sure block modes are set the way we want them for context updates
 105     for (b = 0; b < 16; b++)
 106     {
 107         BLOCKD *d = &x->e_mbd.block[b];
 108
 109         switch (x->e_mbd.mode_info_context->mbmi.mode)
 110         {
 111
 112         case DC_PRED:
 113             d->bmi.mode = B_DC_PRED;
 114             break;
 115         case V_PRED:
 116             d->bmi.mode = B_VE_PRED;
 117             break;
 118         case H_PRED:
 119             d->bmi.mode = B_HE_PRED;
 120             break;
 121         case TM_PRED:
 122             d->bmi.mode = B_TM_PRED;
 123             break;
 124         default:
 125             d->bmi.mode = B_DC_PRED;
 126             break;
 127
 128         }
 129     }
 130 }
 131
 132 void vp8_encode_intra16x16mbuv(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *x)
 133 {
 134     vp8_build_intra_predictors_mbuv(&x->e_mbd);
 135
 136     ENCODEMB_INVOKE(&rtcd->encodemb, submbuv)(x->src_diff, x->src.u_buffer, x->src.v_buffer, x->e_mbd.predictor, x->src.uv_stride);
 137
 138     vp8_transform_mbuv(x);
 139
 140     vp8_quantize_mbuv(x);
 141
 142 #if !(CONFIG_REALTIME_ONLY)
 143 #if 1
 144
 145     if (x->optimize==2 ||(x->optimize && x->rddiv > 1))
 146         vp8_optimize_mbuv(x, rtcd);
 147
 148 #endif
 149 #endif
 150
 151     vp8_inverse_transform_mbuv(IF_RTCD(&rtcd->common->idct), &x->e_mbd);
 152
 153     vp8_recon_intra_mbuv(IF_RTCD(&rtcd->common->recon), &x->e_mbd);
 154 }
 155