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#ifndef DVDOMATIC_VIDEO_DECODER_H
#define DVDOMATIC_VIDEO_DECODER_H
#include "video_source.h"
#include "stream.h"
#include "decoder.h"
class VideoDecoder : public VideoSource, public virtual Decoder
{
public:
VideoDecoder (boost::shared_ptr<Film>, boost::shared_ptr<const Options>, Job *);
/** @return video frames per second, or 0 if unknown */
virtual float frames_per_second () const = 0;
/** @return native size in pixels */
virtual Size native_size () const = 0;
virtual int time_base_numerator () const = 0;
virtual int time_base_denominator () const = 0;
virtual int sample_aspect_ratio_numerator () const = 0;
virtual int sample_aspect_ratio_denominator () const = 0;
virtual void set_subtitle_stream (boost::optional<SubtitleStream>);
SourceFrame video_frame () const {
return _video_frame;
}
boost::optional<SubtitleStream> subtitle_stream () const {
return _subtitle_stream;
}
std::vector<SubtitleStream> subtitle_streams () const {
return _subtitle_streams;
}
protected:
virtual PixelFormat pixel_format () const = 0;
void set_progress () const;
void emit_video (boost::shared_ptr<Image>);
void emit_subtitle (boost::shared_ptr<TimedSubtitle>);
void repeat_last_video ();
boost::optional<SubtitleStream> _subtitle_stream;
std::vector<SubtitleStream> _subtitle_streams;
private:
void signal_video (boost::shared_ptr<Image>, boost::shared_ptr<Subtitle>);
SourceFrame _video_frame;
boost::shared_ptr<TimedSubtitle> _timed_subtitle;
boost::shared_ptr<Image> _last_image;
boost::shared_ptr<Subtitle> _last_subtitle;
};
#endif
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