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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.
#include <stdint.h>
#include "lib/jxl/dec_bit_reader.h"
#include "lib/jxl/frame_header.h"
#include "lib/jxl/headers.h"
#include "lib/jxl/image_bundle.h"
#include "lib/jxl/jpeg/jpeg_data.h"
#include "lib/jxl/loop_filter.h"
#include "lib/jxl/modular/encoding/context_predict.h"
#include "lib/jxl/modular/encoding/encoding.h"
#include "lib/jxl/modular/transform/transform.h"
namespace jxl {
int TestOneInput(const uint8_t* data, size_t size) {
// Global parameters used by some headers.
CodecMetadata codec_metadata;
// First byte controls which header to parse.
if (size == 0) return 0;
BitReader reader(Span<const uint8_t>(data + 1, size - 1));
#define FUZZER_CASE_HEADER(number, classname, ...) \
case number: { \
classname header{__VA_ARGS__}; \
(void)Bundle::Read(&reader, &header); \
break; \
}
switch (data[0]) {
case 0: {
SizeHeader size_header;
(void)ReadSizeHeader(&reader, &size_header);
break;
}
case 1: {
ImageMetadata metadata;
(void)ReadImageMetadata(&reader, &metadata);
break;
}
FUZZER_CASE_HEADER(2, FrameHeader, &codec_metadata)
FUZZER_CASE_HEADER(3, jpeg::JPEGData)
FUZZER_CASE_HEADER(4, AnimationFrame, &codec_metadata)
FUZZER_CASE_HEADER(5, AnimationHeader)
FUZZER_CASE_HEADER(6, BitDepth)
FUZZER_CASE_HEADER(7, BlendingInfo)
FUZZER_CASE_HEADER(8, ColorEncoding)
FUZZER_CASE_HEADER(9, CustomTransferFunction)
FUZZER_CASE_HEADER(10, Customxy)
FUZZER_CASE_HEADER(11, ExtraChannelInfo)
FUZZER_CASE_HEADER(12, GroupHeader)
FUZZER_CASE_HEADER(13, weighted::Header)
FUZZER_CASE_HEADER(14, LoopFilter)
FUZZER_CASE_HEADER(15, LZ77Params)
FUZZER_CASE_HEADER(16, OpsinInverseMatrix)
FUZZER_CASE_HEADER(17, Passes)
FUZZER_CASE_HEADER(18, PreviewHeader)
FUZZER_CASE_HEADER(19, QuantizerParams)
FUZZER_CASE_HEADER(20, SqueezeParams)
FUZZER_CASE_HEADER(21, ToneMapping)
FUZZER_CASE_HEADER(22, Transform)
FUZZER_CASE_HEADER(23, YCbCrChromaSubsampling)
default: {
CustomTransformData transform_data;
transform_data.nonserialized_xyb_encoded = true;
(void)Bundle::Read(&reader, &transform_data);
break;
}
}
(void)reader.Close();
return 0;
}
} // namespace jxl
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
return jxl::TestOneInput(data, size);
}
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