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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /third_party/jpeg-xl/lib/jxl/enc_entropy_coder.h | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | third_party/jpeg-xl/lib/jxl/enc_entropy_coder.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/third_party/jpeg-xl/lib/jxl/enc_entropy_coder.h b/third_party/jpeg-xl/lib/jxl/enc_entropy_coder.h new file mode 100644 index 0000000000..7dfc71c726 --- /dev/null +++ b/third_party/jpeg-xl/lib/jxl/enc_entropy_coder.h @@ -0,0 +1,46 @@ +// 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_ENTROPY_CODER_H_ +#define LIB_JXL_ENC_ENTROPY_CODER_H_ + +#include <stddef.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> + +#include <memory> +#include <utility> +#include <vector> + +#include "lib/jxl/ac_context.h" // BlockCtxMap +#include "lib/jxl/ac_strategy.h" +#include "lib/jxl/enc_ans.h" +#include "lib/jxl/field_encodings.h" +#include "lib/jxl/frame_header.h" // YCbCrChromaSubsampling +#include "lib/jxl/image.h" + +// Entropy coding and context modeling of DC and AC coefficients, as well as AC +// strategy and quantization field. + +namespace jxl { + +// Generate DCT NxN quantized AC values tokens. +// Only the subset "rect" [in units of blocks] within all images. +// See also DecodeACVarBlock. +void TokenizeCoefficients(const coeff_order_t* JXL_RESTRICT orders, + const Rect& rect, + const int32_t* JXL_RESTRICT* JXL_RESTRICT ac_rows, + const AcStrategyImage& ac_strategy, + YCbCrChromaSubsampling cs, + Image3I* JXL_RESTRICT tmp_num_nzeroes, + std::vector<Token>* JXL_RESTRICT output, + const ImageB& qdc, const ImageI& qf, + const BlockCtxMap& block_ctx_map); + +} // namespace jxl + +#endif // LIB_JXL_ENC_ENTROPY_CODER_H_ |