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#include "dynamic_depth/dynamic_depth.h"
#include <fstream>
#include <sstream>
#include "android-base/logging.h"
#include "dynamic_depth/container.h"
#include "dynamic_depth/item.h"
#include "image_io/gcontainer/gcontainer.h"
#include "xmpmeta/xmp_data.h"
#include "xmpmeta/xmp_parser.h"
#include "xmpmeta/xmp_writer.h"
namespace dynamic_depth {
namespace {
using ::dynamic_depth::xmpmeta::CreateXmpData;
using ::dynamic_depth::xmpmeta::XmpData;
constexpr char kImageMimePrefix[] = "image";
bool IsMimeTypeImage(const string& mime) {
string mime_lower = mime;
std::transform(mime_lower.begin(), mime_lower.end(), mime_lower.begin(),
::tolower);
return strncmp(mime_lower.c_str(), kImageMimePrefix, mime_lower.find("/")) ==
0;
}
} // namespace
bool WriteImageAndMetadataAndContainer(std::istream* input_jpeg_stream,
Device* device,
std::ostream* output_jpeg_stream) {
const std::unique_ptr<XmpData> xmp_data = CreateXmpData(true);
device->SerializeToXmp(xmp_data.get());
bool success =
WriteLeftEyeAndXmpMeta(*xmp_data, input_jpeg_stream, output_jpeg_stream);
if (device->GetContainer() == nullptr) {
return success;
}
// Append Container:Item elements' payloads.
for (auto item : device->GetContainer()->GetItems()) {
const string& payload = item->GetPayloadToSerialize();
const unsigned int payload_size = item->GetLength();
if (payload_size <= 0 || payload.empty()) {
continue;
}
output_jpeg_stream->write(payload.c_str(), payload_size);
}
return success;
}
bool WriteImageAndMetadataAndContainer(const string& out_filename,
const uint8_t* primary_image_bytes,
size_t primary_image_bytes_count,
Device* device) {
std::istringstream input_jpeg_stream(
std::string(reinterpret_cast<const char*>(primary_image_bytes),
primary_image_bytes_count));
std::ofstream output_jpeg_stream;
output_jpeg_stream.open(out_filename, std::ostream::out);
bool success = WriteImageAndMetadataAndContainer(&input_jpeg_stream, device,
&output_jpeg_stream);
output_jpeg_stream.close();
return success;
}
bool GetItemPayload(const string& input_image_filename, const Device* device,
const string& item_uri, string* out_payload) {
if (device == nullptr || device->GetContainer() == nullptr) {
LOG(ERROR) << "No Container element to parse";
return false;
}
return GetItemPayload(input_image_filename, device->GetContainer(), item_uri,
out_payload);
}
bool GetItemPayload(const string& input_image_filename,
const Container* container, const string& item_uri,
string* out_payload) {
if (container == nullptr) {
LOG(ERROR) << "Container cannot be null";
return false;
}
size_t file_offset = 0;
size_t file_length = 0;
int index = 0;
bool is_mime_type_image = false;
for (const auto& item : container->GetItems()) {
is_mime_type_image = IsMimeTypeImage(item->GetMime());
if (item_uri.compare(item->GetDataUri()) == 0) {
// Found a matching item.
file_length = item->GetLength();
break;
}
file_offset += item->GetLength();
index++;
}
if (file_length == 0) {
if (index == 0 && is_mime_type_image) {
LOG(INFO) << "Item references the primary image, Not populating data";
return true;
}
// File length can be zero to indicate the primary image (checked above) or
// use the last file in the list. If this check fails, it's not in this
// state.
if (file_offset == 0) {
LOG(ERROR) << "Not using the primary image, or not image mime, or not "
"the first item, but has file offset of 0";
return false;
}
}
std::string std_payload;
bool success =
::photos_editing_formats::image_io::gcontainer::ParseFileAfterImage(
input_image_filename, file_offset, file_length, &std_payload);
*out_payload = std_payload;
return success;
}
extern "C" int32_t ValidateAndroidDynamicDepthBuffer(const char* buffer, size_t buffer_length) {
XmpData xmp_data;
const string image_data(buffer, buffer_length);
ReadXmpFromMemory(image_data, /*XmpSkipExtended*/ false, &xmp_data);
// Check device presence
std::unique_ptr<Device> device = Device::FromXmp(xmp_data);
if (device == nullptr) {
LOG(ERROR) << "Dynamic depth device element not present!";
return -1;
}
// Check profiles
const Profiles* profiles = device->GetProfiles();
if (profiles == nullptr) {
LOG(ERROR) << "No Profile found in the dynamic depth metadata";
return -1;
}
const std::vector<const Profile*> profile_list = profiles->GetProfiles();
// Stop at the first depth photo profile found.
bool depth_photo_profile_found = false;
int camera_index = 0;
for (auto profile : profile_list) {
depth_photo_profile_found = !profile->GetType().compare("DepthPhoto");
if (depth_photo_profile_found) {
// Use the first one if available.
auto indices = profile->GetCameraIndices();
if (!indices.empty()) {
camera_index = indices[0];
} else {
camera_index = -1;
}
break;
}
}
if (!depth_photo_profile_found || camera_index < 0) {
LOG(ERROR) << "No dynamic depth profile found";
return -1;
}
auto cameras = device->GetCameras();
if (cameras == nullptr || camera_index > cameras->GetCameras().size() ||
cameras->GetCameras()[camera_index] == nullptr) {
LOG(ERROR) << "No camera or depth photo data found";
return -1;
}
auto camera = cameras->GetCameras()[camera_index];
auto depth_map = camera->GetDepthMap();
if (depth_map == nullptr) {
LOG(ERROR) << "No depth map found";
return -1;
}
auto depth_uri = depth_map->GetDepthUri();
if (depth_uri.empty()) {
LOG(ERROR) << "Invalid depth map URI";
return -1;
}
auto depth_units = depth_map->GetUnits();
if (depth_units != dynamic_depth::DepthUnits::kMeters) {
LOG(ERROR) << "Unexpected depth map units";
return -1;
}
auto depth_format = depth_map->GetFormat();
if (depth_format != dynamic_depth::DepthFormat::kRangeInverse) {
LOG(ERROR) << "Unexpected depth map format";
return -1;
}
auto near = depth_map->GetNear();
auto far = depth_map->GetFar();
if ((near < 0.f) || (far < 0.f) || (near > far) || (near == far)) {
LOG(ERROR) << "Unexpected depth map near and far values";
return -1;
}
auto confidence_uri = depth_map->GetConfidenceUri();
if (confidence_uri.empty()) {
LOG(ERROR) << "No confidence URI";
return -1;
}
return 0;
}
} // namespace dynamic_depth
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