VideoCacheThread.h

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// Copyright (c) 2008-2019 OpenShot Studios, LLC
//
// SPDX-License-Identifier: LGPL-3.0-or-later
 
#ifndef OPENSHOT_VIDEO_CACHE_THREAD_H
#define OPENSHOT_VIDEO_CACHE_THREAD_H
 
#include "ReaderBase.h"
 
#include <AppConfig.h>
#include <juce_audio_basics/juce_audio_basics.h>
 
namespace openshot
{
    using juce::Thread;
    using juce::WaitableEvent;
 
    class VideoCacheThread : Thread
    {
    protected:
    std::shared_ptr<Frame> last_cached_frame;
    int speed;
    int last_speed;
    bool is_playing;
    int64_t requested_display_frame;
    int64_t current_display_frame;
    int64_t cached_frame_count = 0;
    ReaderBase *reader;
    int64_t min_frames_ahead;
    int64_t max_frames_ahead;
    int64_t timeline_max_frame;
    bool should_pause_cache;
    bool should_break;
 
    VideoCacheThread();
    ~VideoCacheThread();
 
    int64_t getBytes(int width, int height, int sample_rate, int channels, float fps);
 
    int getSpeed() const { return speed; }
 
    void Play();
 
    void Seek(int64_t new_position);
 
    void Seek(int64_t new_position, bool start_preroll);
 
    void setSpeed(int new_speed);
 
    void Stop();
 
    void run();
 
    void Reader(ReaderBase *new_reader) { reader=new_reader; Play(); };
 
    friend class PlayerPrivate;
    friend class QtPlayer;
 
    public:
        bool isReady();
    };
}
 
#endif // OPENSHOT_VIDEO_CACHE_THREAD_H