Depth and confidence maps should always use the same EXIF orientation as the main color image. Bug: 123699590 Test: Manual using application, Camera CTS, adb shell /data/nativetest64/cameraservice_test/cameraservice_test --gtest_filter=DepthProcessorTest.* Change-Id: I0d887798e8717cdff81aba10d595dc3ccfe99197gugelfrei
Emilian Peev
6 years ago
parent
8b0e6fa090
commit
4b08d5dce8
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/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_NDEBUG 0
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#define LOG_TAG "DepthProcessorTest"
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#include <array>
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#include <random>
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#include <dlfcn.h>
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#include <gtest/gtest.h>
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#include "../common/DepthPhotoProcessor.h"
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#include "../utils/ExifUtils.h"
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#include "NV12Compressor.h"
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using namespace android;
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using namespace android::camera3;
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static const size_t kTestBufferWidth = 640;
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static const size_t kTestBufferHeight = 480;
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static const size_t kTestBufferNV12Size ((((kTestBufferWidth) * (kTestBufferHeight)) * 3) / 2);
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static const size_t kTestBufferDepthSize (kTestBufferWidth * kTestBufferHeight);
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static const size_t kSeed = 1234;
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void linkToDepthPhotoLibrary(void **libHandle /*out*/,
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process_depth_photo_frame *processFrameFunc /*out*/) {
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ASSERT_NE(libHandle, nullptr);
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ASSERT_NE(processFrameFunc, nullptr);
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*libHandle = dlopen(kDepthPhotoLibrary, RTLD_NOW | RTLD_LOCAL);
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if (*libHandle != nullptr) {
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*processFrameFunc = reinterpret_cast<camera3::process_depth_photo_frame> (
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dlsym(*libHandle, kDepthPhotoProcessFunction));
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ASSERT_NE(*processFrameFunc, nullptr);
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}
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}
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void generateColorJpegBuffer(int jpegQuality, ExifOrientation orientationValue, bool includeExif,
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std::vector<uint8_t> *colorJpegBuffer /*out*/) {
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ASSERT_NE(colorJpegBuffer, nullptr);
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std::array<uint8_t, kTestBufferNV12Size> colorSourceBuffer;
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std::default_random_engine gen(kSeed);
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std::uniform_int_distribution<int> uniDist(0, UINT8_MAX - 1);
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for (size_t i = 0; i < colorSourceBuffer.size(); i++) {
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colorSourceBuffer[i] = uniDist(gen);
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}
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NV12Compressor jpegCompressor;
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if (includeExif) {
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ASSERT_TRUE(jpegCompressor.compressWithExifOrientation(
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reinterpret_cast<const unsigned char*> (colorSourceBuffer.data()),
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kTestBufferWidth, kTestBufferHeight, jpegQuality, orientationValue));
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} else {
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ASSERT_TRUE(jpegCompressor.compress(
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reinterpret_cast<const unsigned char*> (colorSourceBuffer.data()),
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kTestBufferWidth, kTestBufferHeight, jpegQuality));
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}
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*colorJpegBuffer = std::move(jpegCompressor.getCompressedData());
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ASSERT_FALSE(colorJpegBuffer->empty());
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}
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void generateDepth16Buffer(std::array<uint16_t, kTestBufferDepthSize> *depth16Buffer /*out*/) {
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ASSERT_NE(depth16Buffer, nullptr);
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std::default_random_engine gen(kSeed+1);
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std::uniform_int_distribution<int> uniDist(0, UINT16_MAX - 1);
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for (size_t i = 0; i < depth16Buffer->size(); i++) {
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(*depth16Buffer)[i] = uniDist(gen);
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}
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}
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TEST(DepthProcessorTest, LinkToLibray) {
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void *libHandle;
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process_depth_photo_frame processFunc;
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linkToDepthPhotoLibrary(&libHandle, &processFunc);
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if (libHandle != nullptr) {
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dlclose(libHandle);
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}
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}
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TEST(DepthProcessorTest, BadInput) {
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void *libHandle;
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int jpegQuality = 95;
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process_depth_photo_frame processFunc;
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linkToDepthPhotoLibrary(&libHandle, &processFunc);
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if (libHandle == nullptr) {
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// Depth library no present, nothing more to test.
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return;
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}
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DepthPhotoInputFrame inputFrame;
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// Worst case both depth and confidence maps have the same size as the main color image.
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inputFrame.mMaxJpegSize = inputFrame.mMainJpegSize * 3;
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std::vector<uint8_t> colorJpegBuffer;
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generateColorJpegBuffer(jpegQuality, ExifOrientation::ORIENTATION_UNDEFINED,
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/*includeExif*/ false, &colorJpegBuffer);
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std::array<uint16_t, kTestBufferDepthSize> depth16Buffer;
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generateDepth16Buffer(&depth16Buffer);
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std::vector<uint8_t> depthPhotoBuffer(inputFrame.mMaxJpegSize);
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size_t actualDepthPhotoSize = 0;
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inputFrame.mMainJpegWidth = kTestBufferWidth;
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inputFrame.mMainJpegHeight = kTestBufferHeight;
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inputFrame.mJpegQuality = jpegQuality;
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ASSERT_NE(processFunc(inputFrame, depthPhotoBuffer.size(), depthPhotoBuffer.data(),
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&actualDepthPhotoSize), 0);
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inputFrame.mMainJpegBuffer = reinterpret_cast<const char*> (colorJpegBuffer.data());
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inputFrame.mMainJpegSize = colorJpegBuffer.size();
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ASSERT_NE(processFunc(inputFrame, depthPhotoBuffer.size(), depthPhotoBuffer.data(),
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&actualDepthPhotoSize), 0);
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inputFrame.mDepthMapBuffer = depth16Buffer.data();
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inputFrame.mDepthMapWidth = inputFrame.mDepthMapStride = kTestBufferWidth;
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inputFrame.mDepthMapHeight = kTestBufferHeight;
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ASSERT_NE(processFunc(inputFrame, depthPhotoBuffer.size(), nullptr,
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&actualDepthPhotoSize), 0);
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ASSERT_NE(processFunc(inputFrame, depthPhotoBuffer.size(), depthPhotoBuffer.data(), nullptr),
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0);
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dlclose(libHandle);
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}
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TEST(DepthProcessorTest, BasicDepthPhotoValidation) {
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void *libHandle;
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int jpegQuality = 95;
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process_depth_photo_frame processFunc;
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linkToDepthPhotoLibrary(&libHandle, &processFunc);
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if (libHandle == nullptr) {
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// Depth library no present, nothing more to test.
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return;
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}
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std::vector<uint8_t> colorJpegBuffer;
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generateColorJpegBuffer(jpegQuality, ExifOrientation::ORIENTATION_UNDEFINED,
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/*includeExif*/ false, &colorJpegBuffer);
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std::array<uint16_t, kTestBufferDepthSize> depth16Buffer;
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generateDepth16Buffer(&depth16Buffer);
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DepthPhotoInputFrame inputFrame;
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inputFrame.mMainJpegBuffer = reinterpret_cast<const char*> (colorJpegBuffer.data());
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inputFrame.mMainJpegSize = colorJpegBuffer.size();
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// Worst case both depth and confidence maps have the same size as the main color image.
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inputFrame.mMaxJpegSize = inputFrame.mMainJpegSize * 3;
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inputFrame.mMainJpegWidth = kTestBufferWidth;
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inputFrame.mMainJpegHeight = kTestBufferHeight;
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inputFrame.mJpegQuality = jpegQuality;
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inputFrame.mDepthMapBuffer = depth16Buffer.data();
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inputFrame.mDepthMapWidth = inputFrame.mDepthMapStride = kTestBufferWidth;
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inputFrame.mDepthMapHeight = kTestBufferHeight;
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std::vector<uint8_t> depthPhotoBuffer(inputFrame.mMaxJpegSize);
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size_t actualDepthPhotoSize = 0;
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ASSERT_EQ(processFunc(inputFrame, depthPhotoBuffer.size(), depthPhotoBuffer.data(),
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&actualDepthPhotoSize), 0);
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ASSERT_TRUE((actualDepthPhotoSize > 0) && (depthPhotoBuffer.size() >= actualDepthPhotoSize));
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// The final depth photo must consist of three jpeg images:
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// - the main color image
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// - the depth map image
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// - the confidence map image
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size_t mainJpegSize = 0;
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ASSERT_EQ(NV12Compressor::findJpegSize(depthPhotoBuffer.data(), actualDepthPhotoSize,
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&mainJpegSize), OK);
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ASSERT_TRUE((mainJpegSize > 0) && (mainJpegSize < actualDepthPhotoSize));
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size_t depthMapSize = 0;
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ASSERT_EQ(NV12Compressor::findJpegSize(depthPhotoBuffer.data() + mainJpegSize,
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actualDepthPhotoSize - mainJpegSize, &depthMapSize), OK);
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ASSERT_TRUE((depthMapSize > 0) && (depthMapSize < (actualDepthPhotoSize - mainJpegSize)));
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dlclose(libHandle);
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}
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TEST(DepthProcessorTest, TestDepthPhotoExifOrientation) {
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void *libHandle;
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int jpegQuality = 95;
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process_depth_photo_frame processFunc;
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linkToDepthPhotoLibrary(&libHandle, &processFunc);
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if (libHandle == nullptr) {
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// Depth library no present, nothing more to test.
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return;
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}
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ExifOrientation exifOrientations[] = { ExifOrientation::ORIENTATION_UNDEFINED,
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ExifOrientation::ORIENTATION_0_DEGREES, ExifOrientation::ORIENTATION_90_DEGREES,
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ExifOrientation::ORIENTATION_180_DEGREES, ExifOrientation::ORIENTATION_270_DEGREES };
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for (auto exifOrientation : exifOrientations) {
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std::vector<uint8_t> colorJpegBuffer;
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generateColorJpegBuffer(jpegQuality, exifOrientation, /*includeExif*/ true,
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&colorJpegBuffer);
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if (exifOrientation != ExifOrientation::ORIENTATION_UNDEFINED) {
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auto jpegExifOrientation = ExifOrientation::ORIENTATION_UNDEFINED;
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ASSERT_EQ(NV12Compressor::getExifOrientation(
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reinterpret_cast<const unsigned char*> (colorJpegBuffer.data()),
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colorJpegBuffer.size(), &jpegExifOrientation), OK);
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ASSERT_EQ(exifOrientation, jpegExifOrientation);
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}
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std::array<uint16_t, kTestBufferDepthSize> depth16Buffer;
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generateDepth16Buffer(&depth16Buffer);
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DepthPhotoInputFrame inputFrame;
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inputFrame.mMainJpegBuffer = reinterpret_cast<const char*> (colorJpegBuffer.data());
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inputFrame.mMainJpegSize = colorJpegBuffer.size();
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// Worst case both depth and confidence maps have the same size as the main color image.
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inputFrame.mMaxJpegSize = inputFrame.mMainJpegSize * 3;
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inputFrame.mMainJpegWidth = kTestBufferWidth;
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inputFrame.mMainJpegHeight = kTestBufferHeight;
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inputFrame.mJpegQuality = jpegQuality;
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inputFrame.mDepthMapBuffer = depth16Buffer.data();
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inputFrame.mDepthMapWidth = inputFrame.mDepthMapStride = kTestBufferWidth;
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inputFrame.mDepthMapHeight = kTestBufferHeight;
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std::vector<uint8_t> depthPhotoBuffer(inputFrame.mMaxJpegSize);
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size_t actualDepthPhotoSize = 0;
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ASSERT_EQ(processFunc(inputFrame, depthPhotoBuffer.size(), depthPhotoBuffer.data(),
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&actualDepthPhotoSize), 0);
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ASSERT_TRUE((actualDepthPhotoSize > 0) &&
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(depthPhotoBuffer.size() >= actualDepthPhotoSize));
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size_t mainJpegSize = 0;
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ASSERT_EQ(NV12Compressor::findJpegSize(depthPhotoBuffer.data(), actualDepthPhotoSize,
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&mainJpegSize), OK);
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ASSERT_TRUE((mainJpegSize > 0) && (mainJpegSize < actualDepthPhotoSize));
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size_t depthMapSize = 0;
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ASSERT_EQ(NV12Compressor::findJpegSize(depthPhotoBuffer.data() + mainJpegSize,
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actualDepthPhotoSize - mainJpegSize, &depthMapSize), OK);
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ASSERT_TRUE((depthMapSize > 0) && (depthMapSize < (actualDepthPhotoSize - mainJpegSize)));
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size_t confidenceMapSize = actualDepthPhotoSize - (mainJpegSize + depthMapSize);
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//Depth and confidence images must have the same EXIF orientation as the source
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auto depthJpegExifOrientation = ExifOrientation::ORIENTATION_UNDEFINED;
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ASSERT_EQ(NV12Compressor::getExifOrientation(
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reinterpret_cast<const unsigned char*> (depthPhotoBuffer.data() + mainJpegSize),
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depthMapSize, &depthJpegExifOrientation), OK);
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if (exifOrientation == ORIENTATION_UNDEFINED) {
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// In case of undefined or missing EXIF orientation, always expect 0 degrees in the
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// depth map.
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ASSERT_EQ(depthJpegExifOrientation, ExifOrientation::ORIENTATION_0_DEGREES);
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} else {
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ASSERT_EQ(depthJpegExifOrientation, exifOrientation);
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}
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auto confidenceJpegExifOrientation = ExifOrientation::ORIENTATION_UNDEFINED;
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ASSERT_EQ(NV12Compressor::getExifOrientation(
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reinterpret_cast<const unsigned char*> (depthPhotoBuffer.data() + mainJpegSize +
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depthMapSize), confidenceMapSize, &confidenceJpegExifOrientation), OK);
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if (exifOrientation == ORIENTATION_UNDEFINED) {
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// In case of undefined or missing EXIF orientation, always expect 0 degrees in the
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// confidence map.
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ASSERT_EQ(confidenceJpegExifOrientation, ExifOrientation::ORIENTATION_0_DEGREES);
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} else {
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ASSERT_EQ(confidenceJpegExifOrientation, exifOrientation);
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}
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}
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dlclose(libHandle);
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}
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@ -0,0 +1,349 @@
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/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_NDEBUG 0
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#define LOG_TAG "Test_NV12Compressor"
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#include "NV12Compressor.h"
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#include <libexif/exif-data.h>
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#include <netinet/in.h>
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using namespace android;
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using namespace android::camera3;
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namespace std {
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template <>
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struct default_delete<ExifEntry> {
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inline void operator()(ExifEntry* entry) const { exif_entry_unref(entry); }
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};
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template <>
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struct default_delete<ExifData> {
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inline void operator()(ExifData* data) const { exif_data_unref(data); }
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};
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} // namespace std
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bool NV12Compressor::compress(const unsigned char* data, int width, int height, int quality) {
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if (!configureCompressor(width, height, quality)) {
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// the method will have logged a more detailed error message than we can
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// provide here so just return.
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return false;
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}
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return compressData(data, /*exifData*/ nullptr);
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}
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bool NV12Compressor::compressWithExifOrientation(const unsigned char* data, int width, int height,
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int quality, android::camera3::ExifOrientation exifValue) {
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std::unique_ptr<ExifData> exifData(exif_data_new());
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if (exifData.get() == nullptr) {
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return false;
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}
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exif_data_set_option(exifData.get(), EXIF_DATA_OPTION_FOLLOW_SPECIFICATION);
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exif_data_set_data_type(exifData.get(), EXIF_DATA_TYPE_COMPRESSED);
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exif_data_set_byte_order(exifData.get(), EXIF_BYTE_ORDER_INTEL);
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std::unique_ptr<ExifEntry> exifEntry(exif_entry_new());
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if (exifEntry.get() == nullptr) {
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return false;
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}
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exifEntry->tag = EXIF_TAG_ORIENTATION;
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exif_content_add_entry(exifData->ifd[EXIF_IFD_0], exifEntry.get());
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exif_entry_initialize(exifEntry.get(), exifEntry->tag);
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exif_set_short(exifEntry->data, EXIF_BYTE_ORDER_INTEL, exifValue);
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if (!configureCompressor(width, height, quality)) {
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return false;
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}
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return compressData(data, exifData.get());
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}
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const std::vector<uint8_t>& NV12Compressor::getCompressedData() const {
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return mDestManager.mBuffer;
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}
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bool NV12Compressor::configureCompressor(int width, int height, int quality) {
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mCompressInfo.err = jpeg_std_error(&mErrorManager);
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// NOTE! DANGER! Do not construct any non-trivial objects below setjmp!
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// The compiler will not generate code to destroy them during the return
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// below so they will leak. Additionally, do not place any calls to libjpeg
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// that can fail above this line or any error will cause undefined behavior.
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if (setjmp(mErrorManager.mJumpBuffer)) {
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// This is where the error handler will jump in case setup fails
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// The error manager will ALOG an appropriate error message
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return false;
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}
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jpeg_create_compress(&mCompressInfo);
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mCompressInfo.image_width = width;
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mCompressInfo.image_height = height;
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mCompressInfo.input_components = 3;
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mCompressInfo.in_color_space = JCS_YCbCr;
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jpeg_set_defaults(&mCompressInfo);
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jpeg_set_quality(&mCompressInfo, quality, TRUE);
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// It may seem weird to set color space here again but this will also set
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// other fields. These fields might be overwritten by jpeg_set_defaults
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jpeg_set_colorspace(&mCompressInfo, JCS_YCbCr);
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mCompressInfo.raw_data_in = TRUE;
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mCompressInfo.dct_method = JDCT_IFAST;
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// Set sampling factors
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mCompressInfo.comp_info[0].h_samp_factor = 2;
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mCompressInfo.comp_info[0].v_samp_factor = 2;
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mCompressInfo.comp_info[1].h_samp_factor = 1;
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mCompressInfo.comp_info[1].v_samp_factor = 1;
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mCompressInfo.comp_info[2].h_samp_factor = 1;
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mCompressInfo.comp_info[2].v_samp_factor = 1;
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mCompressInfo.dest = &mDestManager;
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return true;
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}
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static void deinterleave(const uint8_t* vuPlanar, std::vector<uint8_t>& uRows,
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std::vector<uint8_t>& vRows, int rowIndex, int width, int height, int stride) {
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int numRows = (height - rowIndex) / 2;
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if (numRows > 8) numRows = 8;
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for (int row = 0; row < numRows; ++row) {
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int offset = ((rowIndex >> 1) + row) * stride;
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const uint8_t* vu = vuPlanar + offset;
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for (int i = 0; i < (width >> 1); ++i) {
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int index = row * (width >> 1) + i;
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uRows[index] = vu[1];
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vRows[index] = vu[0];
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vu += 2;
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}
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}
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}
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|
||||
bool NV12Compressor::compressData(const unsigned char* data, ExifData* exifData) {
|
||||
const uint8_t* y[16];
|
||||
const uint8_t* cb[8];
|
||||
const uint8_t* cr[8];
|
||||
const uint8_t** planes[3] = { y, cb, cr };
|
||||
|
||||
int i, offset;
|
||||
int width = mCompressInfo.image_width;
|
||||
int height = mCompressInfo.image_height;
|
||||
const uint8_t* yPlanar = data;
|
||||
const uint8_t* vuPlanar = data + (width * height);
|
||||
std::vector<uint8_t> uRows(8 * (width >> 1));
|
||||
std::vector<uint8_t> vRows(8 * (width >> 1));
|
||||
|
||||
// NOTE! DANGER! Do not construct any non-trivial objects below setjmp!
|
||||
// The compiler will not generate code to destroy them during the return
|
||||
// below so they will leak. Additionally, do not place any calls to libjpeg
|
||||
// that can fail above this line or any error will cause undefined behavior.
|
||||
if (setjmp(mErrorManager.mJumpBuffer)) {
|
||||
// This is where the error handler will jump in case compression fails
|
||||
// The error manager will ALOG an appropriate error message
|
||||
return false;
|
||||
}
|
||||
|
||||
jpeg_start_compress(&mCompressInfo, TRUE);
|
||||
|
||||
attachExifData(exifData);
|
||||
|
||||
// process 16 lines of Y and 8 lines of U/V each time.
|
||||
while (mCompressInfo.next_scanline < mCompressInfo.image_height) {
|
||||
//deinterleave u and v
|
||||
deinterleave(vuPlanar, uRows, vRows, mCompressInfo.next_scanline,
|
||||
width, height, width);
|
||||
|
||||
// Jpeg library ignores the rows whose indices are greater than height.
|
||||
for (i = 0; i < 16; i++) {
|
||||
// y row
|
||||
y[i] = yPlanar + (mCompressInfo.next_scanline + i) * width;
|
||||
|
||||
// construct u row and v row
|
||||
if ((i & 1) == 0) {
|
||||
// height and width are both halved because of downsampling
|
||||
offset = (i >> 1) * (width >> 1);
|
||||
cb[i/2] = &uRows[offset];
|
||||
cr[i/2] = &vRows[offset];
|
||||
}
|
||||
}
|
||||
jpeg_write_raw_data(&mCompressInfo, const_cast<JSAMPIMAGE>(planes), 16);
|
||||
}
|
||||
|
||||
jpeg_finish_compress(&mCompressInfo);
|
||||
jpeg_destroy_compress(&mCompressInfo);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool NV12Compressor::attachExifData(ExifData* exifData) {
|
||||
if (exifData == nullptr) {
|
||||
// This is not an error, we don't require EXIF data
|
||||
return true;
|
||||
}
|
||||
|
||||
// Save the EXIF data to memory
|
||||
unsigned char* rawData = nullptr;
|
||||
unsigned int size = 0;
|
||||
exif_data_save_data(exifData, &rawData, &size);
|
||||
if (rawData == nullptr) {
|
||||
ALOGE("Failed to create EXIF data block");
|
||||
return false;
|
||||
}
|
||||
|
||||
jpeg_write_marker(&mCompressInfo, JPEG_APP0 + 1, rawData, size);
|
||||
free(rawData);
|
||||
return true;
|
||||
}
|
||||
|
||||
NV12Compressor::ErrorManager::ErrorManager() {
|
||||
error_exit = &onJpegError;
|
||||
}
|
||||
|
||||
void NV12Compressor::ErrorManager::onJpegError(j_common_ptr cinfo) {
|
||||
// NOTE! Do not construct any non-trivial objects in this method at the top
|
||||
// scope. Their destructors will not be called. If you do need such an
|
||||
// object create a local scope that does not include the longjmp call,
|
||||
// that ensures the object is destroyed before longjmp is called.
|
||||
ErrorManager* errorManager = reinterpret_cast<ErrorManager*>(cinfo->err);
|
||||
|
||||
// Format and log error message
|
||||
char errorMessage[JMSG_LENGTH_MAX];
|
||||
(*errorManager->format_message)(cinfo, errorMessage);
|
||||
errorMessage[sizeof(errorMessage) - 1] = '\0';
|
||||
ALOGE("JPEG compression error: %s", errorMessage);
|
||||
jpeg_destroy(cinfo);
|
||||
|
||||
// And through the looking glass we go
|
||||
longjmp(errorManager->mJumpBuffer, 1);
|
||||
}
|
||||
|
||||
NV12Compressor::DestinationManager::DestinationManager() {
|
||||
init_destination = &initDestination;
|
||||
empty_output_buffer = &emptyOutputBuffer;
|
||||
term_destination = &termDestination;
|
||||
}
|
||||
|
||||
void NV12Compressor::DestinationManager::initDestination(j_compress_ptr cinfo) {
|
||||
auto manager = reinterpret_cast<DestinationManager*>(cinfo->dest);
|
||||
|
||||
// Start out with some arbitrary but not too large buffer size
|
||||
manager->mBuffer.resize(16 * 1024);
|
||||
manager->next_output_byte = &manager->mBuffer[0];
|
||||
manager->free_in_buffer = manager->mBuffer.size();
|
||||
}
|
||||
|
||||
boolean NV12Compressor::DestinationManager::emptyOutputBuffer(
|
||||
j_compress_ptr cinfo) {
|
||||
auto manager = reinterpret_cast<DestinationManager*>(cinfo->dest);
|
||||
|
||||
// Keep doubling the size of the buffer for a very low, amortized
|
||||
// performance cost of the allocations
|
||||
size_t oldSize = manager->mBuffer.size();
|
||||
manager->mBuffer.resize(oldSize * 2);
|
||||
manager->next_output_byte = &manager->mBuffer[oldSize];
|
||||
manager->free_in_buffer = manager->mBuffer.size() - oldSize;
|
||||
return manager->free_in_buffer != 0;
|
||||
}
|
||||
|
||||
void NV12Compressor::DestinationManager::termDestination(j_compress_ptr cinfo) {
|
||||
auto manager = reinterpret_cast<DestinationManager*>(cinfo->dest);
|
||||
|
||||
// Resize down to the exact size of the output, that is remove as many
|
||||
// bytes as there are left in the buffer
|
||||
manager->mBuffer.resize(manager->mBuffer.size() - manager->free_in_buffer);
|
||||
}
|
||||
|
||||
status_t NV12Compressor::findJpegSize(uint8_t *jpegBuffer, size_t maxSize, size_t *size /*out*/) {
|
||||
if ((size == nullptr) || (jpegBuffer == nullptr)) {
|
||||
return BAD_VALUE;
|
||||
}
|
||||
|
||||
if (checkJpegStart(jpegBuffer) == 0) {
|
||||
return BAD_VALUE;
|
||||
}
|
||||
|
||||
// Read JFIF segment markers, skip over segment data
|
||||
*size = kMarkerLength; //jump to Start Of Image
|
||||
while (*size <= maxSize - kMarkerLength) {
|
||||
segment_t *segment = (segment_t*)(jpegBuffer + *size);
|
||||
uint8_t type = checkJpegMarker(segment->marker);
|
||||
if (type == 0) { // invalid marker, no more segments, begin JPEG data
|
||||
break;
|
||||
}
|
||||
if (type == kEndOfImage || *size > maxSize - sizeof(segment_t)) {
|
||||
return BAD_VALUE;
|
||||
}
|
||||
|
||||
size_t length = ntohs(segment->length);
|
||||
*size += length + kMarkerLength;
|
||||
}
|
||||
|
||||
// Find End of Image
|
||||
// Scan JPEG buffer until End of Image
|
||||
bool foundEnd = false;
|
||||
for ( ; *size <= maxSize - kMarkerLength; (*size)++) {
|
||||
if (checkJpegEnd(jpegBuffer + *size)) {
|
||||
foundEnd = true;
|
||||
*size += kMarkerLength;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (!foundEnd) {
|
||||
return BAD_VALUE;
|
||||
}
|
||||
|
||||
if (*size > maxSize) {
|
||||
*size = maxSize;
|
||||
}
|
||||
|
||||
return OK;
|
||||
}
|
||||
|
||||
status_t NV12Compressor::getExifOrientation(const unsigned char *jpegBuffer, size_t jpegBufferSize,
|
||||
ExifOrientation *exifValue /*out*/) {
|
||||
if ((jpegBuffer == nullptr) || (exifValue == nullptr) || (jpegBufferSize == 0u)) {
|
||||
return BAD_VALUE;
|
||||
}
|
||||
|
||||
std::unique_ptr<ExifData> exifData(exif_data_new());
|
||||
exif_data_load_data(exifData.get(), jpegBuffer, jpegBufferSize);
|
||||
ExifEntry *orientation = exif_content_get_entry(exifData->ifd[EXIF_IFD_0],
|
||||
EXIF_TAG_ORIENTATION);
|
||||
if ((orientation == nullptr) || (orientation->size != sizeof(ExifShort))) {
|
||||
return BAD_VALUE;
|
||||
}
|
||||
|
||||
auto orientationValue = exif_get_short(orientation->data,
|
||||
exif_data_get_byte_order(exifData.get()));
|
||||
status_t ret;
|
||||
switch (orientationValue) {
|
||||
case ExifOrientation::ORIENTATION_0_DEGREES:
|
||||
case ExifOrientation::ORIENTATION_90_DEGREES:
|
||||
case ExifOrientation::ORIENTATION_180_DEGREES:
|
||||
case ExifOrientation::ORIENTATION_270_DEGREES:
|
||||
*exifValue = static_cast<ExifOrientation> (orientationValue);
|
||||
ret = OK;
|
||||
break;
|
||||
default:
|
||||
ALOGE("%s: Unexpected EXIF orientation value: %u", __FUNCTION__, orientationValue);
|
||||
ret = BAD_VALUE;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
@ -0,0 +1,115 @@
|
||||
/*
|
||||
* Copyright (C) 2019 The Android Open Source Project
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef TEST_CAMERA_JPEG_STUB_NV12_COMPRESSOR_H
|
||||
#define TEST_CAMERA_JPEG_STUB_NV12_COMPRESSOR_H
|
||||
|
||||
#include <setjmp.h>
|
||||
#include <stdlib.h>
|
||||
extern "C" {
|
||||
#include <jpeglib.h>
|
||||
#include <jerror.h>
|
||||
}
|
||||
|
||||
#include <utils/Errors.h>
|
||||
#include <vector>
|
||||
|
||||
#include "../utils/ExifUtils.h"
|
||||
|
||||
struct _ExifData;
|
||||
typedef _ExifData ExifData;
|
||||
|
||||
class NV12Compressor {
|
||||
public:
|
||||
NV12Compressor() {}
|
||||
|
||||
/* Compress |data| which represents raw NV21 encoded data of dimensions
|
||||
* |width| * |height|.
|
||||
*/
|
||||
bool compress(const unsigned char* data, int width, int height, int quality);
|
||||
bool compressWithExifOrientation(const unsigned char* data, int width, int height, int quality,
|
||||
android::camera3::ExifOrientation exifValue);
|
||||
|
||||
/* Get a reference to the compressed data, this will return an empty vector
|
||||
* if compress has not been called yet
|
||||
*/
|
||||
const std::vector<unsigned char>& getCompressedData() const;
|
||||
|
||||
static android::status_t findJpegSize(uint8_t *jpegBuffer, size_t maxSize,
|
||||
size_t *size /*out*/);
|
||||
|
||||
|
||||
static android::status_t getExifOrientation(const unsigned char *jpegBuffer,
|
||||
size_t jpegBufferSize, android::camera3::ExifOrientation *exifValue /*out*/);
|
||||
|
||||
private:
|
||||
|
||||
struct DestinationManager : jpeg_destination_mgr {
|
||||
DestinationManager();
|
||||
|
||||
static void initDestination(j_compress_ptr cinfo);
|
||||
static boolean emptyOutputBuffer(j_compress_ptr cinfo);
|
||||
static void termDestination(j_compress_ptr cinfo);
|
||||
|
||||
std::vector<unsigned char> mBuffer;
|
||||
};
|
||||
|
||||
struct ErrorManager : jpeg_error_mgr {
|
||||
ErrorManager();
|
||||
|
||||
static void onJpegError(j_common_ptr cinfo);
|
||||
|
||||
jmp_buf mJumpBuffer;
|
||||
};
|
||||
|
||||
static const size_t kMarkerLength = 2; // length of a marker
|
||||
static const uint8_t kMarker = 0xFF; // First byte of marker
|
||||
static const uint8_t kStartOfImage = 0xD8; // Start of Image
|
||||
static const uint8_t kEndOfImage = 0xD9; // End of Image
|
||||
|
||||
struct __attribute__((packed)) segment_t {
|
||||
uint8_t marker[kMarkerLength];
|
||||
uint16_t length;
|
||||
};
|
||||
|
||||
|
||||
// check for Start of Image marker
|
||||
static bool checkJpegStart(uint8_t* buf) {
|
||||
return buf[0] == kMarker && buf[1] == kStartOfImage;
|
||||
}
|
||||
|
||||
// check for End of Image marker
|
||||
static bool checkJpegEnd(uint8_t *buf) {
|
||||
return buf[0] == kMarker && buf[1] == kEndOfImage;
|
||||
}
|
||||
|
||||
// check for arbitrary marker, returns marker type (second byte)
|
||||
// returns 0 if no marker found. Note: 0x00 is not a valid marker type
|
||||
static uint8_t checkJpegMarker(uint8_t *buf) {
|
||||
return (buf[0] == kMarker) ? buf[1] : 0;
|
||||
}
|
||||
|
||||
jpeg_compress_struct mCompressInfo;
|
||||
DestinationManager mDestManager;
|
||||
ErrorManager mErrorManager;
|
||||
|
||||
bool configureCompressor(int width, int height, int quality);
|
||||
bool compressData(const unsigned char* data, ExifData* exifData);
|
||||
bool attachExifData(ExifData* exifData);
|
||||
};
|
||||
|
||||
#endif // TEST_CAMERA_JPEG_STUB_NV12_COMPRESSOR_H
|
||||
|
||||
Loading…
Reference in new issue