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/*
* 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 HW_EMULATOR_CAMERA_JPEG_H
#define HW_EMULATOR_CAMERA_JPEG_H
#include <hwl_types.h>
#include <condition_variable>
#include <mutex>
#include <queue>
#include <thread>
#include "Base.h"
extern "C" {
#include <jpeglib.h>
}
#include "utils/ExifUtils.h"
namespace android {
using google_camera_hal::BufferStatus;
using google_camera_hal::HwlPipelineCallback;
using google_camera_hal::HwlPipelineResult;
struct JpegYUV420Input {
uint32_t width, height;
bool buffer_owner;
YCbCrPlanes yuv_planes;
int32_t color_space;
JpegYUV420Input() : width(0), height(0), buffer_owner(false) {
}
~JpegYUV420Input() {
if ((yuv_planes.img_y != nullptr) && buffer_owner) {
delete[] yuv_planes.img_y;
yuv_planes = {};
}
}
JpegYUV420Input(const JpegYUV420Input&) = delete;
JpegYUV420Input& operator=(const JpegYUV420Input&) = delete;
};
struct JpegYUV420Job {
std::unique_ptr<JpegYUV420Input> input;
std::unique_ptr<SensorBuffer> output;
std::unique_ptr<HalCameraMetadata> result_metadata;
std::unique_ptr<ExifUtils> exif_utils;
};
class JpegCompressor {
public:
JpegCompressor();
virtual ~JpegCompressor();
status_t QueueYUV420(std::unique_ptr<JpegYUV420Job> job);
private:
std::mutex mutex_;
std::condition_variable condition_;
std::atomic_bool jpeg_done_ = false;
std::thread jpeg_processing_thread_;
std::queue<std::unique_ptr<JpegYUV420Job>> pending_yuv_jobs_;
std::string exif_make_, exif_model_;
j_common_ptr jpeg_error_info_;
bool CheckError(const char* msg);
void CompressYUV420(std::unique_ptr<JpegYUV420Job> job);
struct YUV420Frame {
uint8_t* output_buffer;
size_t output_buffer_size;
YCbCrPlanes yuv_planes;
size_t width;
size_t height;
const uint8_t* app1_buffer;
size_t app1_buffer_size;
int32_t color_space;
};
size_t CompressYUV420Frame(YUV420Frame frame);
void ThreadLoop();
JpegCompressor(const JpegCompressor&) = delete;
JpegCompressor& operator=(const JpegCompressor&) = delete;
};
} // namespace android
template <>
struct std::default_delete<jpeg_compress_struct> {
inline void operator()(jpeg_compress_struct* cinfo) const {
if (cinfo != nullptr) {
jpeg_destroy_compress(cinfo);
delete cinfo;
}
}
};
#endif
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