video_frame_observer.h

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#ifndef VIDEO_FRAME_OBSERVER_H_
#define VIDEO_FRAME_OBSERVER_H_
 
#include <memory>
#include <stdint.h>
 
enum VideoRotation {
    kVideoRotation_0 = 0,
    kVideoRotation_90 = 90,
    kVideoRotation_180 = 180,
    kVideoRotation_270 = 270
};
 
class I420Buffer {
public:
    I420Buffer(const uint8_t* data_y, const uint8_t* data_u, const uint8_t* data_v,
        int32_t stride_y, int32_t stride_u, int32_t stride_v, int32_t width, int32_t height);
 
    ~I420Buffer();
 
    const uint8_t* DataY();
 
    const uint8_t* DataU();
 
    const uint8_t* DataV();
 
    int32_t StrideY();
 
    int32_t StrideU();
 
    int32_t StrideV();
 
    int32_t width();
 
    int32_t height();
 
private:
    const uint8_t* data_y_; 
    const uint8_t* data_u_; 
    const uint8_t* data_v_; 
    int32_t stride_y_; 
    int32_t stride_u_; 
    int32_t stride_v_; 
    int32_t width_; 
    int32_t height_; 
};
 
class VideoFrame {
public:
    VideoFrame(const std::shared_ptr<I420Buffer> buffer,
        int64_t timestamp_us,
        uint32_t timestamp_rtp,
        int64_t ntp_time_ms,
        VideoRotation rotation);
 
    ~VideoFrame();
 
    int32_t width() const;
    int32_t height() const;
    uint32_t size() const;
    int64_t timestamp_us() const;
    uint32_t timestamp() const;
    int64_t ntp_time_ms() const;
    VideoRotation rotation() const;
    std::shared_ptr<I420Buffer> i420_buffer() const;
 
private:
    std::shared_ptr<I420Buffer> i420_buffer_;
    int32_t width_;
    int32_t height_;
    uint32_t size_;
    int64_t timestamp_us_;
    uint32_t timestamp_;
    int64_t ntp_time_ms_;
    VideoRotation rotation_;
};
 
class VideoFrameObserver
{
public:
    virtual void OnFrame(const VideoFrame& videoFrame) = 0;
};
 
#endif // !VIDEO_FRAME_OBSERVER_H_