third_party/jpeg-xl/lib/jpegli/libjpeg_test_util.h

   1 // Copyright (c) the JPEG XL Project Authors. All rights reserved.
   2 //
   3 // Use of this source code is governed by a BSD-style
   4 // license that can be found in the LICENSE file.
   5
   6 #ifndef LIB_JPEGLI_LIBJPEG_TEST_UTIL_H_
   7 #define LIB_JPEGLI_LIBJPEG_TEST_UTIL_H_
   8
   9 #include <stddef.h>
  10 #include <stdint.h>
  11
  12 #include <vector>
  13
  14 #include "lib/jpegli/test_params.h"
  15
  16 namespace jpegli {
  17
  18 // Verifies that an image encoded with libjpegli can be decoded with libjpeg,
  19 // and checks that the jpeg coding metadata matches jparams.
  20 void DecodeAllScansWithLibjpeg(const CompressParams& jparams,
  21                                const DecompressParams& dparams,
  22                                const std::vector<uint8_t>& compressed,
  23                                std::vector<TestImage>* output_progression);
  24 // Returns the number of bytes read from compressed.
  25 size_t DecodeWithLibjpeg(const CompressParams& jparams,
  26                          const DecompressParams& dparams,
  27                          const uint8_t* table_stream, size_t table_stream_size,
  28                          const uint8_t* compressed, size_t len,
  29                          TestImage* output);
  30 void DecodeWithLibjpeg(const CompressParams& jparams,
  31                        const DecompressParams& dparams,
  32                        const std::vector<uint8_t>& compressed,
  33                        TestImage* output);
  34
  35 }  // namespace jpegli
  36
  37 #endif  // LIB_JPEGLI_LIBJPEG_TEST_UTIL_H_