encodeintra.c 8.56 KB
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/*
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 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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 *
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 *  Use of this source code is governed by a BSD-style license
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 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
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 *  in the file PATENTS.  All contributing project authors may
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 *  be found in the AUTHORS file in the root of the source tree.
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 */


#include "vpx_ports/config.h"
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#include "vp8/common/idct.h"
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#include "quantize.h"
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#include "vp8/common/reconintra.h"
#include "vp8/common/reconintra4x4.h"
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#include "encodemb.h"
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#include "vp8/common/invtrans.h"
#include "vp8/common/recon.h"
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#include "dct.h"
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#include "vp8/common/g_common.h"
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#include "encodeintra.h"


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#ifdef ENC_DEBUG
extern int enc_debug;
#endif

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#if CONFIG_RUNTIME_CPU_DETECT
#define IF_RTCD(x) (x)
#else
#define IF_RTCD(x) NULL
#endif
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int vp8_encode_intra(VP8_COMP *cpi, MACROBLOCK *x, int use_16x16_pred)
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{

    int i;
    int intra_pred_var = 0;
    (void) cpi;

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    if (use_16x16_pred)
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    {
        x->e_mbd.mode_info_context->mbmi.mode = DC_PRED;
        x->e_mbd.mode_info_context->mbmi.uv_mode = DC_PRED;
        x->e_mbd.mode_info_context->mbmi.ref_frame = INTRA_FRAME;

        vp8_encode_intra16x16mby(IF_RTCD(&cpi->rtcd), x);
    }
    else
    {
        for (i = 0; i < 16; i++)
        {
            x->e_mbd.block[i].bmi.as_mode = B_DC_PRED;
            vp8_encode_intra4x4block(IF_RTCD(&cpi->rtcd), x, i);
        }
    }

    intra_pred_var = VARIANCE_INVOKE(&cpi->rtcd.variance, getmbss)(x->src_diff);

    return intra_pred_var;
}
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void vp8_encode_intra4x4block(const VP8_ENCODER_RTCD *rtcd,
                              MACROBLOCK *x, int ib)
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{
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    BLOCKD *b = &x->e_mbd.block[ib];
    BLOCK *be = &x->block[ib];

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    RECON_INVOKE(&rtcd->common->recon, intra4x4_predict)
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                (b, b->bmi.as_mode, b->predictor);
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    ENCODEMB_INVOKE(&rtcd->encodemb, subb)(be, b, 16);

    x->vp8_short_fdct4x4(be->src_diff, be->coeff, 32);

    x->quantize_b(be, b);

    vp8_inverse_transform_b(IF_RTCD(&rtcd->common->idct), b, 32);

    RECON_INVOKE(&rtcd->common->recon, recon)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
}

void vp8_encode_intra4x4mby(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *mb)
{
    int i;

    MACROBLOCKD *x = &mb->e_mbd;
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#if !CONFIG_SUPERBLOCKS
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    vp8_intra_prediction_down_copy(x);
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#endif
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    for (i = 0; i < 16; i++)
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        vp8_encode_intra4x4block(rtcd, mb, i);
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    return;
}

void vp8_encode_intra16x16mby(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *x)
{
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    BLOCK *b = &x->block[0];
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#if CONFIG_T8X8
    int tx_type = get_seg_tx_type(&x->e_mbd,
                                  x->e_mbd.mode_info_context->mbmi.segment_id);
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    x->e_mbd.mode_info_context->mbmi.txfm_size = tx_type;
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#endif

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    RECON_INVOKE(&rtcd->common->recon, build_intra_predictors_mby)(&x->e_mbd);
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    ENCODEMB_INVOKE(&rtcd->encodemb, submby)(x->src_diff, *(b->base_src), x->e_mbd.predictor, b->src_stride);
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#if CONFIG_T8X8
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    if( tx_type == TX_8X8 )
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        vp8_transform_intra_mby_8x8(x);
    else
#endif
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    vp8_transform_intra_mby(x);

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#if  CONFIG_T8X8
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    if(tx_type == TX_8X8)
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      vp8_quantize_mby_8x8(x);
    else
#endif
      vp8_quantize_mby(x);
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    if (x->optimize)
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    {
#if CONFIG_T8X8
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      if( tx_type == TX_8X8 )
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        vp8_optimize_mby_8x8(x, rtcd);
      else
#endif
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        vp8_optimize_mby(x, rtcd);
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    }
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#if CONFIG_T8X8
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    if(tx_type == TX_8X8)
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      vp8_inverse_transform_mby_8x8(IF_RTCD(&rtcd->common->idct), &x->e_mbd);
    else
#endif
      vp8_inverse_transform_mby(IF_RTCD(&rtcd->common->idct), &x->e_mbd);

#ifdef ENC_DEBUG
    if (enc_debug) {
      int i;
      printf("Intra qcoeff:\n");
      printf("%d %d:\n", x->e_mbd.mb_to_left_edge, x->e_mbd.mb_to_top_edge);
      for (i =0; i<400; i++) {
        printf("%3d ", x->e_mbd.qcoeff[i]);
        if (i%16 == 15) printf("\n");
      }
      printf("Intra dqcoeff:\n");
      for (i =0; i<400; i++) {
        printf("%3d ", x->e_mbd.dqcoeff[i]);
        if (i%16 == 15) printf("\n");
      }
      printf("Intra diff:\n");
      for (i =0; i<400; i++) {
        printf("%3d ", x->e_mbd.diff[i]);
        if (i%16 == 15) printf("\n");
      }
      printf("Intra predictor:\n");
      for (i =0; i<400; i++) {
        printf("%3d ", x->e_mbd.predictor[i]);
        if (i%16 == 15) printf("\n");
      }
      printf("eobs:\n");
      for (i=0;i<25;i++)
        printf("%d ", x->e_mbd.block[i].eob);
      printf("\n");
    }
#endif
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    RECON_INVOKE(&rtcd->common->recon, recon_mby)
        (IF_RTCD(&rtcd->common->recon), &x->e_mbd);
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}

void vp8_encode_intra16x16mbuv(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *x)
{
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#if CONFIG_T8X8
    int tx_type = get_seg_tx_type(&x->e_mbd,
                                  x->e_mbd.mode_info_context->mbmi.segment_id);
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    x->e_mbd.mode_info_context->mbmi.txfm_size = tx_type;
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#endif

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    RECON_INVOKE(&rtcd->common->recon, build_intra_predictors_mbuv)(&x->e_mbd);
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    ENCODEMB_INVOKE(&rtcd->encodemb, submbuv)(x->src_diff, x->src.u_buffer, x->src.v_buffer, x->e_mbd.predictor, x->src.uv_stride);
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#if CONFIG_T8X8
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    if(tx_type == TX_8X8)
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        vp8_transform_mbuv_8x8(x);
    else
#endif
        vp8_transform_mbuv(x);
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#if CONFIG_T8X8
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    if(tx_type == TX_8X8)
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        vp8_quantize_mbuv_8x8(x);
    else
#endif
        vp8_quantize_mbuv(x);

#ifdef ENC_DEBUG
    if (enc_debug) {
      int i;
      printf("vp8_encode_intra16x16mbuv\n");
      printf("%d %d:\n", x->e_mbd.mb_to_left_edge, x->e_mbd.mb_to_top_edge);
      printf("qcoeff:\n");
      for (i =0; i<400; i++) {
        printf("%3d ", x->e_mbd.qcoeff[i]);
        if (i%16 == 15) printf("\n");
      }
      printf("dqcoeff:\n");
      for (i =0; i<400; i++) {
        printf("%3d ", x->e_mbd.dqcoeff[i]);
        if (i%16 == 15) printf("\n");
      }
      printf("diff:\n");
      for (i =0; i<400; i++) {
        printf("%3d ", x->e_mbd.diff[i]);
        if (i%16 == 15) printf("\n");
      }
      printf("predictor:\n");
      for (i =0; i<400; i++) {
        printf("%3d ", x->e_mbd.predictor[i]);
        if (i%16 == 15) printf("\n");
      }
      printf("eobs:\n");
      for (i=0;i<25;i++)
        printf("%d ", x->e_mbd.block[i].eob);
      printf("\n");
    }
#endif
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    if (x->optimize)
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    {
#if CONFIG_T8X8
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      if(tx_type == TX_8X8)
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        vp8_optimize_mbuv_8x8(x, rtcd);
      else
#endif
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        vp8_optimize_mbuv(x, rtcd);
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    }
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#if CONFIG_T8X8
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    if(tx_type == TX_8X8)
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      vp8_inverse_transform_mbuv_8x8(IF_RTCD(&rtcd->common->idct), &x->e_mbd);
    else
#endif
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    vp8_inverse_transform_mbuv(IF_RTCD(&rtcd->common->idct), &x->e_mbd);

    vp8_recon_intra_mbuv(IF_RTCD(&rtcd->common->recon), &x->e_mbd);
}
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void vp8_encode_intra8x8(const VP8_ENCODER_RTCD *rtcd,
                              MACROBLOCK *x, int ib)
{
    BLOCKD *b = &x->e_mbd.block[ib];
    BLOCK *be = &x->block[ib];
    const int iblock[4]={0,1,4,5};
    int i;

    RECON_INVOKE(&rtcd->common->recon, intra8x8_predict)
                (b, b->bmi.as_mode, b->predictor);

    for(i=0;i<4;i++)
    {
        b = &x->e_mbd.block[ib + iblock[i]];
        be = &x->block[ib + iblock[i]];
        ENCODEMB_INVOKE(&rtcd->encodemb, subb)(be, b, 16);
        x->vp8_short_fdct4x4(be->src_diff, be->coeff, 32);
        x->quantize_b(be, b);
        vp8_inverse_transform_b(IF_RTCD(&rtcd->common->idct), b, 32);
        RECON_INVOKE(&rtcd->common->recon, recon)(b->predictor,
            b->diff, *(b->base_dst) + b->dst, b->dst_stride);
    }

}

extern const int vp8_i8x8_block[4];
void vp8_encode_intra8x8mby(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *x)
{
    int i, ib;

    for(i=0;i<4;i++)
    {
        ib = vp8_i8x8_block[i];
        vp8_encode_intra8x8(rtcd, x, ib);
    }

}

void vp8_encode_intra_uv4x4(const VP8_ENCODER_RTCD *rtcd,
                              MACROBLOCK *x, int ib,
                              int mode)
{
    BLOCKD *b = &x->e_mbd.block[ib];
    BLOCK *be = &x->block[ib];

    RECON_INVOKE(&rtcd->common->recon, intra_uv4x4_predict)
                (b, mode, b->predictor);

    ENCODEMB_INVOKE(&rtcd->encodemb, subb)(be, b, 8);

    x->vp8_short_fdct4x4(be->src_diff, be->coeff, 16);

    x->quantize_b(be, b);

    vp8_inverse_transform_b(IF_RTCD(&rtcd->common->idct), b, 16);

    RECON_INVOKE(&rtcd->common->recon, recon_uv)(b->predictor,
        b->diff, *(b->base_dst) + b->dst, b->dst_stride);
}



void vp8_encode_intra8x8mbuv(const VP8_ENCODER_RTCD *rtcd, MACROBLOCK *x)
{
    int i, ib, mode;
    BLOCKD *b;
    for(i=0;i<4;i++)
    {
        ib = vp8_i8x8_block[i];
        b = &x->e_mbd.block[ib];
        mode = b->bmi.as_mode;
        /*u */
        vp8_encode_intra_uv4x4(rtcd, x, i+16, mode);
        /*v */
        vp8_encode_intra_uv4x4(rtcd, x, i+20, mode);
    }
}