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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/lens/lens_metadata.h"
#include <map>
#include "base/base64.h"
#include "base/time/time.h"
#include "components/lens/lens_entrypoints.h"
#include "components/lens/proto/v1/lens_latencies_metadata.pb.h"
namespace {
void AddDownscaleData(lens::proto::lens_latencies_metadata::
ChromeSpecificPhaseLatenciesMetadata::Phase* phase,
gfx::Size original_size,
gfx::Size downscaled_size) {
lens::proto::lens_latencies_metadata::ChromeSpecificPhaseLatenciesMetadata::
Phase::ImageDownscaleData* downscale =
phase->mutable_image_downscale_data();
downscale->set_original_image_size(original_size.width() *
original_size.height());
downscale->set_downscaled_image_byte_size(downscaled_size.width() *
downscaled_size.height());
}
void AddEncodeData(lens::proto::lens_latencies_metadata::
ChromeSpecificPhaseLatenciesMetadata::Phase* phase,
lens::mojom::ImageFormat image_format,
size_t encoded_image_size_bytes) {
lens::proto::lens_latencies_metadata::ChromeSpecificPhaseLatenciesMetadata::
Phase::ImageEncodeData* encode = phase->mutable_image_encode_data();
switch (image_format) {
case (lens::mojom::ImageFormat::ORIGINAL):
encode->set_original_image_type(
lens::proto::lens_latencies_metadata::
ChromeSpecificPhaseLatenciesMetadata::UNKNOWN);
break;
case (lens::mojom::ImageFormat::JPEG):
encode->set_original_image_type(
lens::proto::lens_latencies_metadata::
ChromeSpecificPhaseLatenciesMetadata::JPEG);
break;
case (lens::mojom::ImageFormat::PNG):
encode->set_original_image_type(
lens::proto::lens_latencies_metadata::
ChromeSpecificPhaseLatenciesMetadata::PNG);
break;
case (lens::mojom::ImageFormat::WEBP):
encode->set_original_image_type(
lens::proto::lens_latencies_metadata::
ChromeSpecificPhaseLatenciesMetadata::WEBP);
break;
}
encode->set_encoded_image_size_bytes(encoded_image_size_bytes);
}
} // namespace
namespace LensMetadata {
std::string CreateProto(
const std::vector<lens::mojom::LatencyLogPtr>& log_data) {
lens::proto::lens_latencies_metadata::ChromeSpecificPhaseLatenciesMetadata
metadata;
for (const auto& log : log_data) {
lens::proto::lens_latencies_metadata::ChromeSpecificPhaseLatenciesMetadata::
Phase* phase = metadata.add_phase();
lens::proto::lens_latencies_metadata::ChromeSpecificPhaseLatenciesMetadata::
Phase::Timestamp* timestamp = phase->mutable_timestamp();
int64_t nanoseconds_in_milliseconds = 1e6;
int64_t time_nanoseconds =
log->time.InMillisecondsSinceUnixEpoch() * nanoseconds_in_milliseconds;
timestamp->set_seconds(time_nanoseconds /
base::Time::kNanosecondsPerSecond);
timestamp->set_nanos(time_nanoseconds % base::Time::kNanosecondsPerSecond);
switch (log->phase) {
case lens::mojom::Phase::OVERALL_START:
phase->set_phase_type(
lens::proto::lens_latencies_metadata::
ChromeSpecificPhaseLatenciesMetadata::Phase::OVERALL_START);
break;
case lens::mojom::Phase::DOWNSCALE_START:
phase->set_phase_type(lens::proto::lens_latencies_metadata::
ChromeSpecificPhaseLatenciesMetadata::Phase::
IMAGE_DOWNSCALE_START);
break;
case lens::mojom::Phase::DOWNSCALE_END:
phase->set_phase_type(lens::proto::lens_latencies_metadata::
ChromeSpecificPhaseLatenciesMetadata::Phase::
IMAGE_DOWNSCALE_END);
AddDownscaleData(phase, log->original_size, log->downscaled_size);
break;
case lens::mojom::Phase::ENCODE_START:
phase->set_phase_type(lens::proto::lens_latencies_metadata::
ChromeSpecificPhaseLatenciesMetadata::Phase::
IMAGE_ENCODE_START);
break;
case lens::mojom::Phase::ENCODE_END:
phase->set_phase_type(
lens::proto::lens_latencies_metadata::
ChromeSpecificPhaseLatenciesMetadata::Phase::IMAGE_ENCODE_END);
AddEncodeData(phase, log->image_format, log->encoded_bytes_size);
break;
}
}
std::string serialized_proto;
metadata.SerializeToString(&serialized_proto);
return base::Base64Encode(serialized_proto);
}
} // namespace LensMetadata
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