diff options
Diffstat (limited to 'media/libaom/src/av1/common/blockd.c')
| -rw-r--r-- | media/libaom/src/av1/common/blockd.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/media/libaom/src/av1/common/blockd.c b/media/libaom/src/av1/common/blockd.c new file mode 100644 index 000000000..2e796b656 --- /dev/null +++ b/media/libaom/src/av1/common/blockd.c @@ -0,0 +1,140 @@ +/* + * Copyright (c) 2016, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +#include <math.h> + +#include "aom_ports/system_state.h" + +#include "av1/common/blockd.h" +#include "av1/common/onyxc_int.h" + +PREDICTION_MODE av1_left_block_mode(const MB_MODE_INFO *left_mi) { + if (!left_mi) return DC_PRED; + assert(!is_inter_block(left_mi) || is_intrabc_block(left_mi)); + return left_mi->mode; +} + +PREDICTION_MODE av1_above_block_mode(const MB_MODE_INFO *above_mi) { + if (!above_mi) return DC_PRED; + assert(!is_inter_block(above_mi) || is_intrabc_block(above_mi)); + return above_mi->mode; +} + +void av1_set_contexts(const MACROBLOCKD *xd, struct macroblockd_plane *pd, + int plane, BLOCK_SIZE plane_bsize, TX_SIZE tx_size, + int has_eob, int aoff, int loff) { + ENTROPY_CONTEXT *const a = pd->above_context + aoff; + ENTROPY_CONTEXT *const l = pd->left_context + loff; + const int txs_wide = tx_size_wide_unit[tx_size]; + const int txs_high = tx_size_high_unit[tx_size]; + + // above + if (has_eob && xd->mb_to_right_edge < 0) { + const int blocks_wide = max_block_wide(xd, plane_bsize, plane); + const int above_contexts = AOMMIN(txs_wide, blocks_wide - aoff); + memset(a, has_eob, sizeof(*a) * above_contexts); + memset(a + above_contexts, 0, sizeof(*a) * (txs_wide - above_contexts)); + } else { + memset(a, has_eob, sizeof(*a) * txs_wide); + } + + // left + if (has_eob && xd->mb_to_bottom_edge < 0) { + const int blocks_high = max_block_high(xd, plane_bsize, plane); + const int left_contexts = AOMMIN(txs_high, blocks_high - loff); + memset(l, has_eob, sizeof(*l) * left_contexts); + memset(l + left_contexts, 0, sizeof(*l) * (txs_high - left_contexts)); + } else { + memset(l, has_eob, sizeof(*l) * txs_high); + } +} +void av1_reset_skip_context(MACROBLOCKD *xd, int mi_row, int mi_col, + BLOCK_SIZE bsize, const int num_planes) { + int i; + int nplanes; + int chroma_ref; + chroma_ref = + is_chroma_reference(mi_row, mi_col, bsize, xd->plane[1].subsampling_x, + xd->plane[1].subsampling_y); + nplanes = 1 + (num_planes - 1) * chroma_ref; + for (i = 0; i < nplanes; i++) { + struct macroblockd_plane *const pd = &xd->plane[i]; + const BLOCK_SIZE plane_bsize = + get_plane_block_size(bsize, pd->subsampling_x, pd->subsampling_y); + const int txs_wide = block_size_wide[plane_bsize] >> tx_size_wide_log2[0]; + const int txs_high = block_size_high[plane_bsize] >> tx_size_high_log2[0]; + memset(pd->above_context, 0, sizeof(ENTROPY_CONTEXT) * txs_wide); + memset(pd->left_context, 0, sizeof(ENTROPY_CONTEXT) * txs_high); + } +} + +void av1_reset_loop_filter_delta(MACROBLOCKD *xd, int num_planes) { + xd->delta_lf_from_base = 0; + const int frame_lf_count = + num_planes > 1 ? FRAME_LF_COUNT : FRAME_LF_COUNT - 2; + for (int lf_id = 0; lf_id < frame_lf_count; ++lf_id) xd->delta_lf[lf_id] = 0; +} + +void av1_reset_loop_restoration(MACROBLOCKD *xd, const int num_planes) { + for (int p = 0; p < num_planes; ++p) { + set_default_wiener(xd->wiener_info + p); + set_default_sgrproj(xd->sgrproj_info + p); + } +} + +void av1_setup_block_planes(MACROBLOCKD *xd, int ss_x, int ss_y, + const int num_planes) { + int i; + + for (i = 0; i < num_planes; i++) { + xd->plane[i].plane_type = get_plane_type(i); + xd->plane[i].subsampling_x = i ? ss_x : 0; + xd->plane[i].subsampling_y = i ? ss_y : 0; + } + for (i = num_planes; i < MAX_MB_PLANE; i++) { + xd->plane[i].subsampling_x = 1; + xd->plane[i].subsampling_y = 1; + } +} + +const int16_t dr_intra_derivative[90] = { + // More evenly spread out angles and limited to 10-bit + // Values that are 0 will never be used + // Approx angle + 0, 0, 0, // + 1023, 0, 0, // 3, ... + 547, 0, 0, // 6, ... + 372, 0, 0, 0, 0, // 9, ... + 273, 0, 0, // 14, ... + 215, 0, 0, // 17, ... + 178, 0, 0, // 20, ... + 151, 0, 0, // 23, ... (113 & 203 are base angles) + 132, 0, 0, // 26, ... + 116, 0, 0, // 29, ... + 102, 0, 0, 0, // 32, ... + 90, 0, 0, // 36, ... + 80, 0, 0, // 39, ... + 71, 0, 0, // 42, ... + 64, 0, 0, // 45, ... (45 & 135 are base angles) + 57, 0, 0, // 48, ... + 51, 0, 0, // 51, ... + 45, 0, 0, 0, // 54, ... + 40, 0, 0, // 58, ... + 35, 0, 0, // 61, ... + 31, 0, 0, // 64, ... + 27, 0, 0, // 67, ... (67 & 157 are base angles) + 23, 0, 0, // 70, ... + 19, 0, 0, // 73, ... + 15, 0, 0, 0, 0, // 76, ... + 11, 0, 0, // 81, ... + 7, 0, 0, // 84, ... + 3, 0, 0, // 87, ... +}; |