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
46 lines
2.0 KiB
C
46 lines
2.0 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_decoder_H)
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# define _pvq_decoder_H (1)
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# include "aom_dsp/entdec.h"
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# include "av1/common/pvq.h"
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# include "av1/decoder/decint.h"
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void od_decode_band_pvq_splits(od_ec_dec *ec, od_pvq_codeword_ctx *adapt,
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od_coeff *y, int n, int k, int level);
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#if OD_ACCOUNTING
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# define laplace_decode_special(dec, decay, max, str) od_laplace_decode_special_(dec, decay, max, str)
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# define laplace_decode(dec, ex_q8, k, str) od_laplace_decode_(dec, ex_q8, k, str)
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#define laplace_decode_vector(dec, y, n, k, curr, means, str) od_laplace_decode_vector_(dec, y, n, k, curr, means, str)
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#else
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# define laplace_decode_special(dec, decay, max, str) od_laplace_decode_special_(dec, decay, max)
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# define laplace_decode(dec, ex_q8, k, str) od_laplace_decode_(dec, ex_q8, k)
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#define laplace_decode_vector(dec, y, n, k, curr, means, str) od_laplace_decode_vector_(dec, y, n, k, curr, means)
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#endif
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int od_laplace_decode_special_(od_ec_dec *dec, unsigned decay, int max OD_ACC_STR);
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int od_laplace_decode_(od_ec_dec *dec, unsigned ex_q8, int k OD_ACC_STR);
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void od_laplace_decode_vector_(od_ec_dec *dec, od_coeff *y, int n, int k,
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int32_t *curr, const int32_t *means
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OD_ACC_STR);
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void od_pvq_decode(daala_dec_ctx *dec, od_coeff *ref, od_coeff *out, int q0,
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int pli, int bs, const od_val16 *beta, int robust, int is_keyframe,
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unsigned int *flags, int block_skip, const int16_t *qm,
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const int16_t *qm_inv);
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#endif
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