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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 "tools/benchmark/benchmark_codec.h"
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <string>
#include <utility>
#include <vector>
#include "lib/extras/time.h"
#include "lib/jxl/base/data_parallel.h"
#include "lib/jxl/base/padded_bytes.h"
#include "lib/jxl/base/profiler.h"
#include "lib/jxl/base/span.h"
#include "lib/jxl/base/status.h"
#include "lib/jxl/codec_in_out.h"
#include "lib/jxl/color_encoding_internal.h"
#include "lib/jxl/color_management.h"
#include "lib/jxl/image.h"
#include "lib/jxl/image_bundle.h"
#include "lib/jxl/image_ops.h"
#include "tools/benchmark/benchmark_args.h"
#include "tools/benchmark/benchmark_codec_custom.h"
#ifdef JPEGXL_ENABLE_JPEG
#include "tools/benchmark/benchmark_codec_jpeg.h"
#endif // JPEG_ENABLE_JPEG
#include "tools/benchmark/benchmark_codec_jxl.h"
#include "tools/benchmark/benchmark_codec_png.h"
#include "tools/benchmark/benchmark_stats.h"
#ifdef BENCHMARK_WEBP
#include "tools/benchmark/benchmark_codec_webp.h"
#endif // BENCHMARK_WEBP
#ifdef BENCHMARK_AVIF
#include "tools/benchmark/benchmark_codec_avif.h"
#endif // BENCHMARK_AVIF
namespace jxl {
void ImageCodec::ParseParameters(const std::string& parameters) {
params_ = parameters;
std::vector<std::string> parts = SplitString(parameters, ':');
for (size_t i = 0; i < parts.size(); ++i) {
if (!ParseParam(parts[i])) {
JXL_ABORT("Invalid parameter %s", parts[i].c_str());
}
}
}
Status ImageCodec::ParseParam(const std::string& param) {
if (param[0] == 'q') { // libjpeg-style quality, [0,100]
const std::string quality_param = param.substr(1);
char* end;
const float q_target = strtof(quality_param.c_str(), &end);
if (end == quality_param.c_str() ||
end != quality_param.c_str() + quality_param.size()) {
return false;
}
q_target_ = q_target;
return true;
}
if (param[0] == 'd') { // butteraugli distance
const std::string distance_param = param.substr(1);
char* end;
const float butteraugli_target = strtof(distance_param.c_str(), &end);
if (end == distance_param.c_str() ||
end != distance_param.c_str() + distance_param.size()) {
return false;
}
butteraugli_target_ = butteraugli_target;
// full hf asymmetry at high distance
static const double kHighDistance = 2.5;
// no hf asymmetry at low distance
static const double kLowDistance = 0.6;
if (butteraugli_target_ >= kHighDistance) {
ba_params_.hf_asymmetry = args_.ba_params.hf_asymmetry;
} else if (butteraugli_target_ >= kLowDistance) {
float w =
(butteraugli_target_ - kLowDistance) / (kHighDistance - kLowDistance);
ba_params_.hf_asymmetry =
args_.ba_params.hf_asymmetry * w + 1.0f * (1.0f - w);
} else {
ba_params_.hf_asymmetry = 1.0f;
}
return true;
} else if (param[0] == 'r') {
butteraugli_target_ = -1.0;
ba_params_.hf_asymmetry = args_.ba_params.hf_asymmetry;
bitrate_target_ = strtof(param.substr(1).c_str(), nullptr);
return true;
}
return false;
}
// Low-overhead "codec" for measuring benchmark overhead.
class NoneCodec : public ImageCodec {
public:
explicit NoneCodec(const BenchmarkArgs& args) : ImageCodec(args) {}
Status ParseParam(const std::string& param) override { return true; }
Status Compress(const std::string& filename, const CodecInOut* io,
ThreadPoolInternal* pool, PaddedBytes* compressed,
jpegxl::tools::SpeedStats* speed_stats) override {
PROFILER_ZONE("NoneCompress");
const double start = Now();
// Encode image size so we "decompress" something of the same size, as
// required by butteraugli.
const uint32_t xsize = io->xsize();
const uint32_t ysize = io->ysize();
compressed->resize(8);
memcpy(compressed->data(), &xsize, 4);
memcpy(compressed->data() + 4, &ysize, 4);
const double end = Now();
speed_stats->NotifyElapsed(end - start);
return true;
}
Status Decompress(const std::string& filename,
const Span<const uint8_t> compressed,
ThreadPoolInternal* pool, CodecInOut* io,
jpegxl::tools::SpeedStats* speed_stats) override {
PROFILER_ZONE("NoneDecompress");
const double start = Now();
JXL_ASSERT(compressed.size() == 8);
uint32_t xsize, ysize;
memcpy(&xsize, compressed.data(), 4);
memcpy(&ysize, compressed.data() + 4, 4);
Image3F image(xsize, ysize);
ZeroFillImage(&image);
io->metadata.m.SetFloat32Samples();
io->metadata.m.color_encoding = ColorEncoding::SRGB();
io->SetFromImage(std::move(image), io->metadata.m.color_encoding);
const double end = Now();
speed_stats->NotifyElapsed(end - start);
return true;
}
void GetMoreStats(BenchmarkStats* stats) override {}
};
ImageCodecPtr CreateImageCodec(const std::string& description) {
std::string name = description;
std::string parameters = "";
size_t colon = description.find(':');
if (colon < description.size()) {
name = description.substr(0, colon);
parameters = description.substr(colon + 1);
}
ImageCodecPtr result;
if (name == "jxl") {
result.reset(CreateNewJxlCodec(*Args()));
#if !defined(__wasm__)
} else if (name == "custom") {
result.reset(CreateNewCustomCodec(*Args()));
#endif
#ifdef JPEGXL_ENABLE_JPEG
} else if (name == "jpeg") {
result.reset(CreateNewJPEGCodec(*Args()));
#endif // BENCHMARK_JPEG
#if JPEGXL_ENABLE_APNG
} else if (name == "png") {
result.reset(CreateNewPNGCodec(*Args()));
#endif
} else if (name == "none") {
result.reset(new NoneCodec(*Args()));
#ifdef BENCHMARK_WEBP
} else if (name == "webp") {
result.reset(CreateNewWebPCodec(*Args()));
#endif // BENCHMARK_WEBP
#ifdef BENCHMARK_AVIF
} else if (name == "avif") {
result.reset(CreateNewAvifCodec(*Args()));
#endif // BENCHMARK_AVIF
} else {
JXL_ABORT("Unknown image codec: %s", name.c_str());
}
result->set_description(description);
if (!parameters.empty()) result->ParseParameters(parameters);
return result;
}
} // namespace jxl
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