77bba8d30a
PVQ replaces the scalar quantizer and coefficient coding with a new
design originally developed in Daala. It currently depends on the
Daala entropy coder although it could be adapted to work with another
entropy coder if needed:
./configure --enable-experimental --enable-daala_ec --enable-pvq
The version of PVQ in this commit is adapted from the following
revision of Daala:
fb51c1ade6
More information about PVQ:
- https://people.xiph.org/~jm/daala/pvq_demo/
- https://jmvalin.ca/papers/spie_pvq.pdf
The following files are copied as-is from Daala with minimal
adaptations, therefore we disable clang-format on those files
to make it easier to synchronize the AV1 and Daala codebases in the future:
av1/common/generic_code.c
av1/common/generic_code.h
av1/common/laplace_tables.c
av1/common/partition.c
av1/common/partition.h
av1/common/pvq.c
av1/common/pvq.h
av1/common/state.c
av1/common/state.h
av1/common/zigzag.h
av1/common/zigzag16.c
av1/common/zigzag32.c
av1/common/zigzag4.c
av1/common/zigzag64.c
av1/common/zigzag8.c
av1/decoder/decint.h
av1/decoder/generic_decoder.c
av1/decoder/laplace_decoder.c
av1/decoder/pvq_decoder.c
av1/decoder/pvq_decoder.h
av1/encoder/daala_compat_enc.c
av1/encoder/encint.h
av1/encoder/generic_encoder.c
av1/encoder/laplace_encoder.c
av1/encoder/pvq_encoder.c
av1/encoder/pvq_encoder.h
Known issues:
- Lossless mode is not supported, '--lossless=1' will give the same result as
'--end-usage=q --cq-level=1'.
- High bit depth is not supported by PVQ.
Change-Id: I1ae0d6517b87f4c1ccea944b2e12dc906979f25e
61 lines
2.4 KiB
C
61 lines
2.4 KiB
C
/*
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* Copyright (c) 2001-2016, 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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/* clang-format off */
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#if !defined(_pvq_encoder_H)
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# define _pvq_encoder_H (1)
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# include "aom_dsp/entenc.h"
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# include "av1/common/blockd.h"
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# include "av1/common/pvq.h"
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# include "av1/encoder/encint.h"
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#define PVQ_CHROMA_RD 1
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void od_encode_band_pvq_splits(od_ec_enc *ec, od_pvq_codeword_ctx *adapt,
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const int *y, int n, int k, int level);
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void od_laplace_encode_special(od_ec_enc *enc, int x, unsigned decay, int max);
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void od_laplace_encode(od_ec_enc *enc, int x, int ex_q8, int k);
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void od_laplace_encode_vector(od_ec_enc *enc, const od_coeff *y, int n, int k,
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int32_t *curr, const int32_t *means);
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#if OD_SIGNAL_Q_SCALING
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void od_encode_quantizer_scaling(daala_enc_ctx *enc, int q_scaling, int bx,
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int by, int skip);
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#endif
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void pvq_encode_partition(od_ec_enc *ec,
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int qg,
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int theta,
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int max_theta,
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const od_coeff *in,
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int n,
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int k,
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generic_encoder model[3],
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od_adapt_ctx *adapt,
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int *exg,
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int *ext,
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int nodesync,
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int cdf_ctx,
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int is_keyframe,
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int code_skip,
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int skip_rest,
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int encode_flip,
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int flip);
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int od_pvq_encode(daala_enc_ctx *enc, od_coeff *ref, const od_coeff *in,
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od_coeff *out, int q_dc, int q_ac, int pli, int bs, const od_val16 *beta, int robust,
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int is_keyframe, int q_scaling, int bx, int by, const int16_t *qm,
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const int16_t *qm_inv, int speed, PVQ_INFO *pvq_info);
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#endif
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