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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /third_party/jpeg-xl/lib/jxl/box_content_decoder.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/jpeg-xl/lib/jxl/box_content_decoder.h')
-rw-r--r-- | third_party/jpeg-xl/lib/jxl/box_content_decoder.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/third_party/jpeg-xl/lib/jxl/box_content_decoder.h b/third_party/jpeg-xl/lib/jxl/box_content_decoder.h new file mode 100644 index 0000000000..6153360a8e --- /dev/null +++ b/third_party/jpeg-xl/lib/jxl/box_content_decoder.h @@ -0,0 +1,49 @@ +// 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_BOX_CONTENT_DECODER_H_ +#define LIB_JXL_BOX_CONTENT_DECODER_H_ + +#include <brotli/decode.h> +#include <jxl/decode.h> +#include <stdint.h> +#include <stdlib.h> + +#include <memory> +#include <vector> + +namespace jxl { + +/** Outputs the contents of a box in a streaming fashion, either directly, or + * optionally decoding with Brotli, in case of a brob box. The input must be + * the contents of a box, excluding the box header. + */ +class JxlBoxContentDecoder { + public: + JxlBoxContentDecoder(); + ~JxlBoxContentDecoder(); + + void StartBox(bool brob_decode, bool box_until_eof, size_t contents_size); + + // Outputs decoded bytes from the box, decoding with brotli if needed. + // box_pos is the position in the box content which next_in points to. + // Returns success, whether more input or output bytes are needed, or error. + JxlDecoderStatus Process(const uint8_t* next_in, size_t avail_in, + size_t box_pos, uint8_t** next_out, + size_t* avail_out); + + private: + BrotliDecoderState* brotli_dec; + + bool header_done_; + bool brob_decode_; + bool box_until_eof_; + size_t remaining_; + size_t pos_; +}; + +} // namespace jxl + +#endif // LIB_JXL_BOX_CONTENT_DECODER_H_ |