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// Copyright (c) the JPEG XL Project Authors. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#ifndef LIB_JXL_ENC_CONTEXT_MAP_H_
#define LIB_JXL_ENC_CONTEXT_MAP_H_
#include <stddef.h>
#include <stdint.h>
#include <vector>
#include "lib/jxl/ac_context.h"
#include "lib/jxl/enc_bit_writer.h"
namespace jxl {
struct AuxOut;
// Max limit is 255 because encoding assumes numbers < 255
// More clusters can help compression, but makes encode/decode somewhat slower
static const size_t kClustersLimit = 128;
// Encodes the given context map to the bit stream. The number of different
// histogram ids is given by num_histograms.
void EncodeContextMap(const std::vector<uint8_t>& context_map,
size_t num_histograms, BitWriter* writer, size_t layer,
AuxOut* aux_out);
void EncodeBlockCtxMap(const BlockCtxMap& block_ctx_map, BitWriter* writer,
AuxOut* aux_out);
} // namespace jxl
#endif // LIB_JXL_ENC_CONTEXT_MAP_H_
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