93 lines
2.6 KiB
C++
93 lines
2.6 KiB
C++
// Copyright (c) the JPEG XL Project Authors. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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#ifndef LIB_JXL_ENC_CACHE_H_
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#define LIB_JXL_ENC_CACHE_H_
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#include <jxl/cms_interface.h>
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#include <jxl/memory_manager.h>
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#include <cstddef>
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#include <cstdint>
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#include <memory>
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#include <vector>
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#include "lib/jxl/base/data_parallel.h"
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#include "lib/jxl/base/rect.h"
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#include "lib/jxl/base/status.h"
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#include "lib/jxl/dct_util.h"
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#include "lib/jxl/enc_ans.h"
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#include "lib/jxl/enc_bit_writer.h"
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#include "lib/jxl/enc_params.h"
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#include "lib/jxl/enc_progressive_split.h"
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#include "lib/jxl/frame_header.h"
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#include "lib/jxl/image.h"
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#include "lib/jxl/passes_state.h"
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#include "lib/jxl/quant_weights.h"
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namespace jxl {
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struct AuxOut;
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// Contains encoder state.
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struct PassesEncoderState {
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explicit PassesEncoderState(JxlMemoryManager* memory_manager)
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: shared(memory_manager) {}
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PassesSharedState shared;
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bool streaming_mode = false;
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bool initialize_global_state = true;
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size_t dc_group_index = 0;
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// Per-pass DCT coefficients for the image. One row per group.
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std::vector<std::unique_ptr<ACImage>> coeffs;
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// Raw data for special (reference+DC) frames.
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std::vector<std::unique_ptr<BitWriter>> special_frames;
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// For splitting into passes.
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ProgressiveSplitter progressive_splitter;
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CompressParams cparams;
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struct PassData {
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std::vector<std::vector<Token>> ac_tokens;
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std::vector<uint8_t> context_map;
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EntropyEncodingData codes;
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};
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std::vector<PassData> passes;
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std::vector<size_t> histogram_idx;
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// Block sizes seen so far.
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uint32_t used_acs = 0;
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// Coefficient orders that are non-default.
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std::vector<uint32_t> used_orders;
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// Multiplier to be applied to the quant matrices of the x channel.
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float x_qm_multiplier = 1.0f;
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float b_qm_multiplier = 1.0f;
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ImageF initial_quant_masking1x1;
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JxlMemoryManager* memory_manager() const { return shared.memory_manager; }
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};
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// Initialize per-frame information.
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class ModularFrameEncoder;
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Status InitializePassesEncoder(const FrameHeader& frame_header,
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const Image3F& opsin, const Rect& rect,
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const JxlCmsInterface& cms, ThreadPool* pool,
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PassesEncoderState* passes_enc_state,
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ModularFrameEncoder* modular_frame_encoder,
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AuxOut* aux_out);
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Status ComputeACMetadata(ThreadPool* pool, PassesEncoderState* enc_state,
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ModularFrameEncoder* modular_frame_encoder);
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} // namespace jxl
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#endif // LIB_JXL_ENC_CACHE_H_
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