videoreaderfilebuffer.h

#ifndef LIBCVD_VIDEOREADERFILEBUFFER_H
#define LIBCVD_VIDEOREADERFILEBUFFER_H

#include "diskbuffer2.h"
#include "localvideobuffer.h"
#include "rgba.h"
#include "videobufferflags.h"
#include "videoreader.h"

#include <cstdint>
#include <memory>
#include <string>
#include <utility>

namespace CVD
{

// Implements the LocalVideoBuffer interface using a VideoReader.
class VideoReaderFileBuffer : public LocalVideoBuffer<Rgba<std::uint8_t>>
{
    public:
    using pixel_t = Rgba<std::uint8_t>;

    private:
    VideoReader m_reader;
    std::string m_filename;
    std::pair<Image<pixel_t>, std::int64_t> m_next_frame;

    public:
    VideoReaderFileBuffer(const std::string& filename, int threads = 1);
    ~VideoReaderFileBuffer();

    ImageRef size() override;
    bool frame_pending() override;
    void seek_to(double t) override;
    LocalVideoFrame<pixel_t>* get_frame() override;
    void put_frame(VideoFrame<pixel_t>* f) override;

    double frame_rate() const;
    std::string file_name() const;
};

}

#endif