libjpeg_test_util.h

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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_JPEGLI_LIBJPEG_TEST_UTIL_H_

#define LIB_JPEGLI_LIBJPEG_TEST_UTIL_H_

#include <stddef.h>

#include <stdint.h>

#include <vector>

#include "lib/jpegli/test_params.h"

namespace jpegli {

// Verifies that an image encoded with libjpegli can be decoded with libjpeg,

// and checks that the jpeg coding metadata matches jparams.

void DecodeAllScansWithLibjpeg(const CompressParams& jparams,

                               const DecompressParams& dparams,

                               const std::vector<uint8_t>& compressed,

                               std::vector<TestImage>* output_progression);

// Returns the number of bytes read from compressed.

size_t DecodeWithLibjpeg(const CompressParams& jparams,

                         const DecompressParams& dparams,

                         const uint8_t* table_stream, size_t table_stream_size,

                         const uint8_t* compressed, size_t len,

                         TestImage* output);

void DecodeWithLibjpeg(const CompressParams& jparams,

                       const DecompressParams& dparams,

                       const std::vector<uint8_t>& compressed,

                       TestImage* output);

}  // namespace jpegli

#endif  // LIB_JPEGLI_LIBJPEG_TEST_UTIL_H_