filepng.h

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#ifndef FILEPNG_H
#define FILEPNG_H


#include "file.inc"
#include "filebase.h"
#include "filelist.h"
#include "vframe.inc"

class FilePNG : public FileList
{
public:
        FilePNG(Asset *asset, File *file);
        ~FilePNG();

        static int check_sig(Asset *asset);
        static void get_parameters(BC_WindowBase *parent_window, 
                Asset *asset, 
                BC_WindowBase* &format_window,
                int audio_options,
                int video_options);
        static int get_best_colormodel(Asset *asset, int driver);
        int colormodel_supported(int colormodel);
        int read_frame(VFrame *frame, VFrame *data);
        int write_frame(VFrame *frame, VFrame *data, FrameWriterUnit *unit);
        int can_copy_from(Edit *edit, int64_t position);
        FrameWriterUnit* new_writer_unit(FrameWriter *writer);

        int read_frame_header(char *path);



        int native_cmodel;
// For decoding only
        VFrame *temp;
};


class PNGUnit : public FrameWriterUnit
{
public:
        PNGUnit(FilePNG *file, FrameWriter *writer);
        ~PNGUnit();
        
        FilePNG *file;
        VFrame *temp_frame;
};

class PNGConfigVideo : public BC_Window
{
public:
        PNGConfigVideo(BC_WindowBase *parent_window, Asset *asset);
        ~PNGConfigVideo();

        int create_objects();
        int close_event();

        BC_WindowBase *parent_window;
        Asset *asset;
};


class PNGUseAlpha : public BC_CheckBox
{
public:
        PNGUseAlpha(PNGConfigVideo *gui, int x, int y);
        int handle_event();
        PNGConfigVideo *gui;
};


#endif

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