#ifndef SCAR_VIDEO_DECODER_H
#define SCAR_VIDEO_DECODER_H

#include <vector>
#include <cstdint>
#include <memory>
#include <mutex>
#include <QImage>

extern "C" {
#include <libavcodec/avcodec.h>
#include <libavutil/imgutils.h>
#include <libswscale/swscale.h>
}

namespace scar {

class VideoDecoder {
public:
    VideoDecoder();
    ~VideoDecoder();

    // Initialize decoder
    bool initialize();
    
    // Decode H.264 packet and return RGB24 data
    // Returns empty vector if no frame ready yet
    std::vector<uint8_t> decode(const std::vector<uint8_t>& encoded_data, int& out_width, int& out_height);
    
    // Cleanup
    void cleanup();

private:
    AVCodecContext* codec_ctx_;
    AVFrame* frame_;
    SwsContext* sws_ctx_;
    
    int width_;
    int height_;
    
    bool initialized_;
    std::mutex decode_mutex_;
};

} // namespace scar

#endif // SCAR_VIDEO_DECODER_H