*/
-#ifndef DVDOMATIC_VIDEO_DECODER_H
-#define DVDOMATIC_VIDEO_DECODER_H
+#ifndef DCPOMATIC_VIDEO_DECODER_H
+#define DCPOMATIC_VIDEO_DECODER_H
-#include "video_source.h"
-#include "stream.h"
+#include <boost/signals2.hpp>
+#include <boost/shared_ptr.hpp>
#include "decoder.h"
+#include "video_content.h"
+#include "util.h"
-class VideoDecoder : public TimedVideoSource, public virtual Decoder
+class VideoContent;
+class Image;
+
+class VideoDecoder : public virtual Decoder
{
public:
- VideoDecoder (boost::shared_ptr<Film>, DecodeOptions);
-
- /** @return video frames per second, or 0 if unknown */
- virtual float frames_per_second () const = 0;
- /** @return native size in pixels */
- virtual libdcp::Size native_size () const = 0;
- /** @return length (in source video frames), according to our content's header */
- virtual SourceFrame length () 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::shared_ptr<SubtitleStream>);
-
- void set_progress (Job *) const;
+ VideoDecoder (boost::shared_ptr<const Film>, boost::shared_ptr<const VideoContent>);
+
+ /** Seek so that the next pass() will yield (approximately) the requested frame.
+ * Pass accurate = true to try harder to get close to the request.
+ */
+ virtual void seek (VideoContent::Frame frame, bool accurate) = 0;
+
+ /** Emitted when a video frame is ready.
+ * First parameter is the video image.
+ * Second parameter is the eye(s) which should see this image.
+ * Third parameter is true if the image is the same as the last one that was emitted for this Eyes value.
+ * Fourth parameter is the frame within our source.
+ */
+ boost::signals2::signal<void (boost::shared_ptr<const Image>, Eyes, bool, VideoContent::Frame)> Video;
- int video_frame () const {
- return _video_frame;
- }
-
- boost::shared_ptr<SubtitleStream> subtitle_stream () const {
- return _subtitle_stream;
- }
-
- std::vector<boost::shared_ptr<SubtitleStream> > subtitle_streams () const {
- return _subtitle_streams;
- }
-
- double last_source_time () const {
- return _last_source_time;
- }
-
protected:
-
- virtual PixelFormat pixel_format () const = 0;
-
- void emit_video (boost::shared_ptr<Image>, double);
- void emit_subtitle (boost::shared_ptr<TimedSubtitle>);
- /** Subtitle stream to use when decoding */
- boost::shared_ptr<SubtitleStream> _subtitle_stream;
- /** Subtitle streams that this decoder's content has */
- std::vector<boost::shared_ptr<SubtitleStream> > _subtitle_streams;
-
-private:
- void signal_video (boost::shared_ptr<Image>, bool, boost::shared_ptr<Subtitle>, double);
-
- int _video_frame;
- double _last_source_time;
-
- boost::shared_ptr<TimedSubtitle> _timed_subtitle;
+ void video (boost::shared_ptr<const Image>, bool, VideoContent::Frame);
+ boost::shared_ptr<const VideoContent> _video_content;
+ VideoContent::Frame _video_position;
};
#endif