Source code
Revision control
Copy as Markdown
Other Tools
// 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_EXTRAS_DEC_DECODE_H_
#define LIB_EXTRAS_DEC_DECODE_H_
// Facade for image decoders (PNG, PNM, ...).
#include <cstddef>
#include <cstdint>
#include <string>
#include "lib/extras/dec/color_hints.h"
#include "lib/jxl/base/span.h"
#include "lib/jxl/base/status.h"
namespace jxl {
struct SizeConstraints;
namespace extras {
// Codecs supported by DecodeBytes.
enum class Codec : uint32_t {
kUnknown, // for CodecFromPath
kPNG,
kPNM,
kPGX,
kJPG,
kGIF,
kEXR,
kJXL
};
bool CanDecode(Codec codec);
std::string ListOfDecodeCodecs();
// If and only if extension is ".pfm", *bits_per_sample is updated to 32 so
// that Encode() would encode to PFM instead of PPM.
Codec CodecFromPath(const std::string& path,
size_t* JXL_RESTRICT bits_per_sample = nullptr,
std::string* extension = nullptr);
// Decodes "bytes" info *ppf.
// color_space_hint may specify the color space, otherwise, defaults to sRGB.
Status DecodeBytes(Span<const uint8_t> bytes, const ColorHints& color_hints,
extras::PackedPixelFile* ppf,
const SizeConstraints* constraints = nullptr,
Codec* orig_codec = nullptr);
} // namespace extras
} // namespace jxl
#endif // LIB_EXTRAS_DEC_DECODE_H_