1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/libvpx/vp8/encoder/encodeintra.c Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,138 @@
1.4 +/*
1.5 + * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
1.6 + *
1.7 + * Use of this source code is governed by a BSD-style license
1.8 + * that can be found in the LICENSE file in the root of the source
1.9 + * tree. An additional intellectual property rights grant can be found
1.10 + * in the file PATENTS. All contributing project authors may
1.11 + * be found in the AUTHORS file in the root of the source tree.
1.12 + */
1.13 +
1.14 +
1.15 +#include "vpx_config.h"
1.16 +#include "vp8_rtcd.h"
1.17 +#include "quantize.h"
1.18 +#include "vp8/common/reconintra4x4.h"
1.19 +#include "encodemb.h"
1.20 +#include "vp8/common/invtrans.h"
1.21 +#include "encodeintra.h"
1.22 +
1.23 +
1.24 +int vp8_encode_intra(VP8_COMP *cpi, MACROBLOCK *x, int use_dc_pred)
1.25 +{
1.26 +
1.27 + int i;
1.28 + int intra_pred_var = 0;
1.29 + (void) cpi;
1.30 +
1.31 + if (use_dc_pred)
1.32 + {
1.33 + x->e_mbd.mode_info_context->mbmi.mode = DC_PRED;
1.34 + x->e_mbd.mode_info_context->mbmi.uv_mode = DC_PRED;
1.35 + x->e_mbd.mode_info_context->mbmi.ref_frame = INTRA_FRAME;
1.36 +
1.37 + vp8_encode_intra16x16mby(x);
1.38 +
1.39 + vp8_inverse_transform_mby(&x->e_mbd);
1.40 + }
1.41 + else
1.42 + {
1.43 + for (i = 0; i < 16; i++)
1.44 + {
1.45 + x->e_mbd.block[i].bmi.as_mode = B_DC_PRED;
1.46 + vp8_encode_intra4x4block(x, i);
1.47 + }
1.48 + }
1.49 +
1.50 + intra_pred_var = vp8_get_mb_ss(x->src_diff);
1.51 +
1.52 + return intra_pred_var;
1.53 +}
1.54 +
1.55 +void vp8_encode_intra4x4block(MACROBLOCK *x, int ib)
1.56 +{
1.57 + BLOCKD *b = &x->e_mbd.block[ib];
1.58 + BLOCK *be = &x->block[ib];
1.59 + int dst_stride = x->e_mbd.dst.y_stride;
1.60 + unsigned char *dst = x->e_mbd.dst.y_buffer + b->offset;
1.61 + unsigned char *Above = dst - dst_stride;
1.62 + unsigned char *yleft = dst - 1;
1.63 + unsigned char top_left = Above[-1];
1.64 +
1.65 + vp8_intra4x4_predict(Above, yleft, dst_stride, b->bmi.as_mode,
1.66 + b->predictor, 16, top_left);
1.67 +
1.68 + vp8_subtract_b(be, b, 16);
1.69 +
1.70 + x->short_fdct4x4(be->src_diff, be->coeff, 32);
1.71 +
1.72 + x->quantize_b(be, b);
1.73 +
1.74 + if (*b->eob > 1)
1.75 + {
1.76 + vp8_short_idct4x4llm(b->dqcoeff, b->predictor, 16, dst, dst_stride);
1.77 + }
1.78 + else
1.79 + {
1.80 + vp8_dc_only_idct_add(b->dqcoeff[0], b->predictor, 16, dst, dst_stride);
1.81 + }
1.82 +}
1.83 +
1.84 +void vp8_encode_intra4x4mby(MACROBLOCK *mb)
1.85 +{
1.86 + int i;
1.87 +
1.88 + MACROBLOCKD *xd = &mb->e_mbd;
1.89 + intra_prediction_down_copy(xd, xd->dst.y_buffer - xd->dst.y_stride + 16);
1.90 +
1.91 + for (i = 0; i < 16; i++)
1.92 + vp8_encode_intra4x4block(mb, i);
1.93 + return;
1.94 +}
1.95 +
1.96 +void vp8_encode_intra16x16mby(MACROBLOCK *x)
1.97 +{
1.98 + BLOCK *b = &x->block[0];
1.99 + MACROBLOCKD *xd = &x->e_mbd;
1.100 +
1.101 + vp8_build_intra_predictors_mby_s(xd,
1.102 + xd->dst.y_buffer - xd->dst.y_stride,
1.103 + xd->dst.y_buffer - 1,
1.104 + xd->dst.y_stride,
1.105 + xd->dst.y_buffer,
1.106 + xd->dst.y_stride);
1.107 +
1.108 + vp8_subtract_mby(x->src_diff, *(b->base_src),
1.109 + b->src_stride, xd->dst.y_buffer, xd->dst.y_stride);
1.110 +
1.111 + vp8_transform_intra_mby(x);
1.112 +
1.113 + vp8_quantize_mby(x);
1.114 +
1.115 + if (x->optimize)
1.116 + vp8_optimize_mby(x);
1.117 +}
1.118 +
1.119 +void vp8_encode_intra16x16mbuv(MACROBLOCK *x)
1.120 +{
1.121 + MACROBLOCKD *xd = &x->e_mbd;
1.122 +
1.123 + vp8_build_intra_predictors_mbuv_s(xd, xd->dst.u_buffer - xd->dst.uv_stride,
1.124 + xd->dst.v_buffer - xd->dst.uv_stride,
1.125 + xd->dst.u_buffer - 1,
1.126 + xd->dst.v_buffer - 1,
1.127 + xd->dst.uv_stride,
1.128 + xd->dst.u_buffer, xd->dst.v_buffer,
1.129 + xd->dst.uv_stride);
1.130 +
1.131 + vp8_subtract_mbuv(x->src_diff, x->src.u_buffer,
1.132 + x->src.v_buffer, x->src.uv_stride, xd->dst.u_buffer,
1.133 + xd->dst.v_buffer, xd->dst.uv_stride);
1.134 +
1.135 + vp8_transform_mbuv(x);
1.136 +
1.137 + vp8_quantize_mbuv(x);
1.138 +
1.139 + if (x->optimize)
1.140 + vp8_optimize_mbuv(x);
1.141 +}
