CscCaptureFileRecorder.h

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//
//  CscCaptureFileRecorder.h
//  ConscienceRobotManager
//
//  Created by Louis Grignon on 1/12/2021.
//  Copyright © 2021 IliesZaoui. All rights reserved.
//
 
#ifndef CscCaptureFileRecorder_h
#define CscCaptureFileRecorder_h
 
#include "CscCommon.h"
#include "./CscCaptureEngine.h"
#include <thread>
 
using cv::VideoWriter, std::thread;
 
namespace conscience_core::media_capture {
 
class CscCaptureFileRecorder {
public:
    CscCaptureFileRecorder(CscCaptureEngine *captureEngine, fs::path outputPath, const string &logPrefix);
    ~CscCaptureFileRecorder();
 
    void setDurationSeconds(short durationSeconds);
 
    void start();
 
    optional<fs::path> tryGetRecording(const fs::path &snapshotOutputPath = fs::temp_directory_path() / ("recordingSnapshot_" + to_string(nowMillis()) + ".mp4"));
 
    void close();
 
    fs::path getOutputPath() const;
 
private:
    unsigned long long lastNotOpenedWarningLogTime;
 
    CscCaptureEngine *captureEngine;
    optional<short> durationSeconds = {};
    const fs::path outputPath;
    const fs::path tempRecordingPath;
    const fs::path tempLastRecordingPath;
 
    enum Status {
        OPENING,
        OPENED,
        CLOSING,
        CLOSED,
    };
    Status status = Status::CLOSED;
 
    int writtenFramesCounter = 0;
 
    mutex videoRecordingMutex;
    mutex videoRecordingLastMutex;
    mutex videoRecordingExtractMutex;
    system_clock::time_point videoRecordingStartTime;
 
    thread *recorderThread = nullptr;
    void recorderThreadAction();
 
    VideoWriter *videoWriterRecording = nullptr;
 
    VideoWriter *initVideoWriter(const fs::path &outputPath, const Resolution &resolution, const string &description);
 
    void ensureMp4VideoPath(const fs::path &videoPath);
 
    void ffmpeg(const string &command);
 
    fs::path getRecording(const fs::path &snapshotOutputPath = fs::temp_directory_path() / ("recordingSnapshot_" + to_string(nowMillis()) + ".mp4"));
 
    unique_ptr<CscLogger> logger = nullptr;
};
}
 
#endif