94191b5c82
Separate the functionality of I4X4_PRED from decode_mb. Use decode_atom_intra instead, to enable recursive partition of superblock down to 8x8. Change-Id: Ifc89a3be82225398954169d0a839abdbbfd8ca3b
307 lines
11 KiB
C
307 lines
11 KiB
C
/*
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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
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* 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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*/
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#include "./vpx_config.h"
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#include "vp9_rtcd.h"
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#include "vp9/encoder/vp9_quantize.h"
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#include "vp9/common/vp9_reconintra.h"
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#include "vp9/encoder/vp9_encodemb.h"
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#include "vp9/common/vp9_invtrans.h"
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#include "vp9/encoder/vp9_encodeintra.h"
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static void encode_intra4x4block(MACROBLOCK *x, int ib, BLOCK_SIZE_TYPE bs);
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int vp9_encode_intra(VP9_COMP *cpi, MACROBLOCK *x, int use_16x16_pred) {
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MB_MODE_INFO * mbmi = &x->e_mbd.mode_info_context->mbmi;
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(void) cpi;
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if (use_16x16_pred) {
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mbmi->mode = DC_PRED;
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mbmi->uv_mode = DC_PRED;
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mbmi->ref_frame = INTRA_FRAME;
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vp9_encode_intra16x16mby(&cpi->common, x);
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} else {
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int i;
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for (i = 0; i < 16; i++) {
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x->e_mbd.mode_info_context->bmi[i].as_mode.first = B_DC_PRED;
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encode_intra4x4block(x, i, BLOCK_SIZE_MB16X16);
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}
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}
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return vp9_get_mb_ss(x->plane[0].src_diff);
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}
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static void encode_intra4x4block(MACROBLOCK *x, int ib,
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BLOCK_SIZE_TYPE bsize) {
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MACROBLOCKD * const xd = &x->e_mbd;
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TX_TYPE tx_type;
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uint8_t* const src =
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raster_block_offset_uint8(xd, bsize, 0, ib,
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x->plane[0].src.buf, x->plane[0].src.stride);
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uint8_t* const dst =
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raster_block_offset_uint8(xd, bsize, 0, ib,
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xd->plane[0].dst.buf, xd->plane[0].dst.stride);
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int16_t* const src_diff =
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raster_block_offset_int16(xd, bsize, 0, ib,
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x->plane[0].src_diff);
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int16_t* const diff =
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raster_block_offset_int16(xd, bsize, 0, ib,
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xd->plane[0].diff);
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int16_t* const coeff = BLOCK_OFFSET(x->plane[0].coeff, ib, 16);
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assert(ib < 16);
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#if CONFIG_NEWBINTRAMODES
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xd->mode_info_context->bmi[ib].as_mode.context =
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vp9_find_bpred_context(&x->e_mbd, ib, dst, xd->plane[0].dst.stride);
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#endif
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vp9_intra4x4_predict(&x->e_mbd, ib,
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xd->mode_info_context->bmi[ib].as_mode.first,
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dst, xd->plane[0].dst.stride);
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vp9_subtract_block(4, 4, src_diff, 16,
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src, x->plane[0].src.stride,
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dst, xd->plane[0].dst.stride);
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tx_type = get_tx_type_4x4(&x->e_mbd, ib);
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if (tx_type != DCT_DCT) {
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vp9_short_fht4x4(src_diff, coeff, 16, tx_type);
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x->quantize_b_4x4(x, ib, tx_type, 16);
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vp9_short_iht4x4(BLOCK_OFFSET(xd->plane[0].dqcoeff, ib, 16),
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diff, 16, tx_type);
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} else {
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x->fwd_txm4x4(src_diff, coeff, 32);
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x->quantize_b_4x4(x, ib, tx_type, 16);
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vp9_inverse_transform_b_4x4(&x->e_mbd, xd->plane[0].eobs[ib],
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BLOCK_OFFSET(xd->plane[0].dqcoeff, ib, 16),
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diff, 32);
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}
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vp9_recon_b(dst, diff, dst, xd->plane[0].dst.stride);
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}
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void vp9_encode_intra4x4mby(MACROBLOCK *mb, BLOCK_SIZE_TYPE bsize) {
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int i;
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int bwl = b_width_log2(bsize), bhl = b_height_log2(bsize);
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int bc = 1 << (bwl + bhl);
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for (i = 0; i < bc; i++)
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encode_intra4x4block(mb, i, bsize);
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}
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void vp9_encode_intra16x16mby(VP9_COMMON *const cm, MACROBLOCK *x) {
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MACROBLOCKD *xd = &x->e_mbd;
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TX_SIZE tx_size = xd->mode_info_context->mbmi.txfm_size;
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vp9_build_intra_predictors_sby_s(xd, BLOCK_SIZE_MB16X16);
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vp9_subtract_sby(x, BLOCK_SIZE_MB16X16);
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switch (tx_size) {
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case TX_16X16:
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vp9_transform_sby_16x16(x, BLOCK_SIZE_MB16X16);
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vp9_quantize_sby_16x16(x, BLOCK_SIZE_MB16X16);
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if (x->optimize)
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vp9_optimize_sby_16x16(cm, x, BLOCK_SIZE_MB16X16);
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vp9_inverse_transform_sby_16x16(xd, BLOCK_SIZE_MB16X16);
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break;
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case TX_8X8:
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vp9_transform_sby_8x8(x, BLOCK_SIZE_MB16X16);
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vp9_quantize_sby_8x8(x, BLOCK_SIZE_MB16X16);
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if (x->optimize)
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vp9_optimize_sby_8x8(cm, x, BLOCK_SIZE_MB16X16);
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vp9_inverse_transform_sby_8x8(xd, BLOCK_SIZE_MB16X16);
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break;
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default:
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vp9_transform_sby_4x4(x, BLOCK_SIZE_MB16X16);
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vp9_quantize_sby_4x4(x, BLOCK_SIZE_MB16X16);
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if (x->optimize)
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vp9_optimize_sby_4x4(cm, x, BLOCK_SIZE_MB16X16);
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vp9_inverse_transform_sby_4x4(xd, BLOCK_SIZE_MB16X16);
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break;
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}
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vp9_recon_sby(xd, BLOCK_SIZE_MB16X16);
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}
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void vp9_encode_intra16x16mbuv(VP9_COMMON *const cm, MACROBLOCK *x) {
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MACROBLOCKD *xd = &x->e_mbd;
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TX_SIZE tx_size = xd->mode_info_context->mbmi.txfm_size;
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vp9_build_intra_predictors_sbuv_s(xd, BLOCK_SIZE_MB16X16);
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vp9_subtract_sbuv(x, BLOCK_SIZE_MB16X16);
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switch (tx_size) {
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case TX_4X4:
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vp9_transform_sbuv_4x4(x, BLOCK_SIZE_MB16X16);
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vp9_quantize_sbuv_4x4(x, BLOCK_SIZE_MB16X16);
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if (x->optimize)
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vp9_optimize_sbuv_4x4(cm, x, BLOCK_SIZE_MB16X16);
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vp9_inverse_transform_sbuv_4x4(xd, BLOCK_SIZE_MB16X16);
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break;
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default: // 16x16 or 8x8
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vp9_transform_sbuv_8x8(x, BLOCK_SIZE_MB16X16);
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vp9_quantize_sbuv_8x8(x, BLOCK_SIZE_MB16X16);
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if (x->optimize)
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vp9_optimize_sbuv_8x8(cm, x, BLOCK_SIZE_MB16X16);
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vp9_inverse_transform_sbuv_8x8(xd, BLOCK_SIZE_MB16X16);
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break;
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}
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vp9_recon_sbuv(xd, BLOCK_SIZE_MB16X16);
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}
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void vp9_encode_intra8x8(MACROBLOCK *x, int ib) {
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MACROBLOCKD *xd = &x->e_mbd;
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uint8_t* const src =
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raster_block_offset_uint8(xd, BLOCK_SIZE_MB16X16, 0, ib,
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x->plane[0].src.buf, x->plane[0].src.stride);
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int16_t* const src_diff =
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raster_block_offset_int16(xd, BLOCK_SIZE_MB16X16, 0, ib,
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x->plane[0].src_diff);
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int16_t* const diff =
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raster_block_offset_int16(xd, BLOCK_SIZE_MB16X16, 0, ib,
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xd->plane[0].diff);
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uint8_t* const dst =
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raster_block_offset_uint8(xd, BLOCK_SIZE_MB16X16, 0, ib,
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xd->plane[0].dst.buf, xd->plane[0].dst.stride);
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const int iblock[4] = {0, 1, 4, 5};
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int i;
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TX_TYPE tx_type;
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vp9_intra8x8_predict(xd, ib, xd->mode_info_context->bmi[ib].as_mode.first,
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dst, xd->plane[0].dst.stride);
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// generate residual blocks
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vp9_subtract_block(8, 8, src_diff, 16,
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src, x->plane[0].src.stride,
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dst, xd->plane[0].dst.stride);
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if (xd->mode_info_context->mbmi.txfm_size == TX_8X8) {
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int idx = (ib & 0x02) ? (ib + 2) : ib;
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int16_t* const dqcoeff = BLOCK_OFFSET(xd->plane[0].dqcoeff, idx, 16);
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int16_t* const coeff = BLOCK_OFFSET(x->plane[0].coeff, idx, 16);
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assert(idx < 16);
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tx_type = get_tx_type_8x8(xd, ib);
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if (tx_type != DCT_DCT) {
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vp9_short_fht8x8(src_diff, coeff, 16, tx_type);
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x->quantize_b_8x8(x, idx, tx_type, 16);
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vp9_short_iht8x8(dqcoeff, diff, 16, tx_type);
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} else {
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x->fwd_txm8x8(src_diff, coeff, 32);
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x->quantize_b_8x8(x, idx, DCT_DCT, 16);
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vp9_short_idct8x8(dqcoeff, diff, 32);
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}
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} else {
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for (i = 0; i < 4; i++) {
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int idx = ib + iblock[i];
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int16_t* const dqcoeff = BLOCK_OFFSET(xd->plane[0].dqcoeff, idx, 16);
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int16_t* const coeff = BLOCK_OFFSET(x->plane[0].coeff, idx, 16);
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int16_t* const src_diff =
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raster_block_offset_int16(xd, BLOCK_SIZE_MB16X16, 0, idx,
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x->plane[0].src_diff);
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int16_t* const diff =
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raster_block_offset_int16(xd, BLOCK_SIZE_MB16X16, 0, idx,
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xd->plane[0].diff);
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assert(idx < 16);
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tx_type = get_tx_type_4x4(xd, ib + iblock[i]);
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if (tx_type != DCT_DCT) {
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vp9_short_fht4x4(src_diff, coeff, 16, tx_type);
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x->quantize_b_4x4(x, ib + iblock[i], tx_type, 16);
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vp9_short_iht4x4(dqcoeff, diff, 16, tx_type);
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} else if (!(i & 1) &&
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get_tx_type_4x4(xd, ib + iblock[i] + 1) == DCT_DCT) {
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x->fwd_txm8x4(src_diff, coeff, 32);
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x->quantize_b_4x4_pair(x, ib + iblock[i], ib + iblock[i] + 1, 16);
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vp9_inverse_transform_b_4x4(xd, xd->plane[0].eobs[ib + iblock[i]],
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dqcoeff, diff, 32);
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vp9_inverse_transform_b_4x4(xd, xd->plane[0].eobs[ib + iblock[i] + 1],
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dqcoeff + 16, diff + 4, 32);
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i++;
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} else {
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x->fwd_txm4x4(src_diff, coeff, 32);
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x->quantize_b_4x4(x, ib + iblock[i], tx_type, 16);
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vp9_inverse_transform_b_4x4(xd, xd->plane[0].eobs[ib + iblock[i]],
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dqcoeff, diff, 32);
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}
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}
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}
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// reconstruct submacroblock
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for (i = 0; i < 4; i++) {
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int16_t* const diff =
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raster_block_offset_int16(xd, BLOCK_SIZE_MB16X16, 0, ib + iblock[i],
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xd->plane[0].diff);
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uint8_t* const dst =
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raster_block_offset_uint8(xd, BLOCK_SIZE_MB16X16, 0, ib + iblock[i],
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xd->plane[0].dst.buf,
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xd->plane[0].dst.stride);
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vp9_recon_b_c(dst, diff, dst, xd->plane[0].dst.stride);
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}
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}
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void vp9_encode_intra8x8mby(MACROBLOCK *x) {
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int i;
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for (i = 0; i < 4; i++)
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vp9_encode_intra8x8(x, vp9_i8x8_block[i]);
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}
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static void encode_intra_uv4x4(MACROBLOCK *x, int ib, int mode) {
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MACROBLOCKD * const xd = &x->e_mbd;
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int16_t * const dqcoeff = MB_SUBBLOCK_FIELD(xd, dqcoeff, ib);
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int16_t* const coeff = MB_SUBBLOCK_FIELD(x, coeff, ib);
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const int plane = ib < 20 ? 1 : 2;
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const int block = ib < 20 ? ib - 16 : ib - 20;
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uint8_t* const src =
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raster_block_offset_uint8(xd, BLOCK_SIZE_MB16X16, plane, block,
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x->plane[plane].src.buf,
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x->plane[plane].src.stride);
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int16_t* const src_diff =
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raster_block_offset_int16(xd, BLOCK_SIZE_MB16X16, plane, block,
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x->plane[plane].src_diff);
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int16_t* const diff =
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raster_block_offset_int16(xd, BLOCK_SIZE_MB16X16, plane, block,
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xd->plane[plane].diff);
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uint8_t* const dst =
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raster_block_offset_uint8(xd, BLOCK_SIZE_MB16X16, plane, block,
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xd->plane[plane].dst.buf,
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xd->plane[plane].dst.stride);
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assert(ib >= 16 && ib < 24);
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vp9_intra_uv4x4_predict(&x->e_mbd, ib, mode,
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dst, xd->plane[plane].dst.stride);
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assert(xd->plane[1].subsampling_x == 1);
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vp9_subtract_block(4, 4, src_diff, 8,
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src, x->plane[plane].src.stride,
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dst, xd->plane[plane].dst.stride);
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x->fwd_txm4x4(src_diff, coeff, 16);
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x->quantize_b_4x4(x, ib, DCT_DCT, 16);
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vp9_inverse_transform_b_4x4(&x->e_mbd, xd->plane[plane].eobs[block],
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dqcoeff, diff, 16);
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vp9_recon_uv_b_c(dst, diff, dst, xd->plane[plane].dst.stride);
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}
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void vp9_encode_intra8x8mbuv(MACROBLOCK *x) {
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int i;
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for (i = 0; i < 4; i++) {
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int mode = x->e_mbd.mode_info_context->bmi[vp9_i8x8_block[i]].as_mode.first;
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encode_intra_uv4x4(x, i + 16, mode); // u
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encode_intra_uv4x4(x, i + 20, mode); // v
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}
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}
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