99 строки
3.6 KiB
C
99 строки
3.6 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#ifndef AV1_ENCODER_AQ_CYCLICREFRESH_H_
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#define AV1_ENCODER_AQ_CYCLICREFRESH_H_
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#include "av1/common/blockd.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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// The segment ids used in cyclic refresh: from base (no boost) to increasing
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// boost (higher delta-qp).
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#define CR_SEGMENT_ID_BASE 0
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#define CR_SEGMENT_ID_BOOST1 1
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#define CR_SEGMENT_ID_BOOST2 2
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// Maximum rate target ratio for setting segment delta-qp.
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#define CR_MAX_RATE_TARGET_RATIO 4.0
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struct AV1_COMP;
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struct CYCLIC_REFRESH;
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typedef struct CYCLIC_REFRESH CYCLIC_REFRESH;
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CYCLIC_REFRESH *av1_cyclic_refresh_alloc(int mi_rows, int mi_cols);
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void av1_cyclic_refresh_free(CYCLIC_REFRESH *cr);
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// Estimate the bits, incorporating the delta-q from segment 1, after encoding
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// the frame.
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int av1_cyclic_refresh_estimate_bits_at_q(const struct AV1_COMP *cpi,
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double correction_factor);
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// Estimate the bits per mb, for a given q = i and a corresponding delta-q
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// (for segment 1), prior to encoding the frame.
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int av1_cyclic_refresh_rc_bits_per_mb(const struct AV1_COMP *cpi, int i,
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double correction_factor);
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// Prior to coding a given prediction block, of size bsize at (mi_row, mi_col),
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// check if we should reset the segment_id, and update the cyclic_refresh map
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// and segmentation map.
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void av1_cyclic_refresh_update_segment(const struct AV1_COMP *cpi,
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MB_MODE_INFO *const mbmi, int mi_row,
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int mi_col, BLOCK_SIZE bsize,
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int64_t rate, int64_t dist, int skip);
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// Update the segmentation map, and related quantities: cyclic refresh map,
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// refresh sb_index, and target number of blocks to be refreshed.
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void av1_cyclic_refresh_update__map(struct AV1_COMP *const cpi);
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// Update the actual number of blocks that were applied the segment delta q.
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void av1_cyclic_refresh_postencode(struct AV1_COMP *const cpi);
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// Set golden frame update interval, for 1 pass CBR mode.
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void av1_cyclic_refresh_set_golden_update(struct AV1_COMP *const cpi);
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// Check if we should not update golden reference, based on past refresh stats.
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void av1_cyclic_refresh_check_golden_update(struct AV1_COMP *const cpi);
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// Set/update global/frame level refresh parameters.
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void av1_cyclic_refresh_update_parameters(struct AV1_COMP *const cpi);
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// Setup cyclic background refresh: set delta q and segmentation map.
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void av1_cyclic_refresh_setup(struct AV1_COMP *const cpi);
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int av1_cyclic_refresh_get_rdmult(const CYCLIC_REFRESH *cr);
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void av1_cyclic_refresh_reset_resize(struct AV1_COMP *const cpi);
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static INLINE int cyclic_refresh_segment_id_boosted(int segment_id) {
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return segment_id == CR_SEGMENT_ID_BOOST1 ||
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segment_id == CR_SEGMENT_ID_BOOST2;
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}
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static INLINE int cyclic_refresh_segment_id(int segment_id) {
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if (segment_id == CR_SEGMENT_ID_BOOST1)
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return CR_SEGMENT_ID_BOOST1;
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else if (segment_id == CR_SEGMENT_ID_BOOST2)
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return CR_SEGMENT_ID_BOOST2;
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else
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return CR_SEGMENT_ID_BASE;
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}
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // AV1_ENCODER_AQ_CYCLICREFRESH_H_
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