X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fdecoder.h;h=18f612e538c5e645470c33cfcca91175a58a0b13;hb=05654d0e1799746a9df3ccab040c92e0ed825cac;hp=edb532b9cc8474e0e474ac882d95d114fae71925;hpb=a0f1a3d40f1c93d4432d1d4857c1620907259b2f;p=dcpomatic.git diff --git a/src/lib/decoder.h b/src/lib/decoder.h index edb532b9c..18f612e53 100644 --- a/src/lib/decoder.h +++ b/src/lib/decoder.h @@ -18,71 +18,38 @@ */ /** @file src/decoder.h - * @brief Parent class for decoders of content. + * @brief Decoder class. */ #ifndef DCPOMATIC_DECODER_H #define DCPOMATIC_DECODER_H -#include -#include -#include #include -#include -#include "video_source.h" -#include "audio_source.h" -#include "film.h" +#include +#include +#include "types.h" +#include "dcpomatic_time.h" -class Image; -class Log; -class DelayLine; -class TimedSubtitle; -class Subtitle; -class FilterGraph; +class Decoded; /** @class Decoder. * @brief Parent class for decoders of content. */ -class Decoder +class Decoder : public boost::noncopyable { public: - Decoder (boost::shared_ptr); virtual ~Decoder () {} - /** Perform one decode pass of the content, which may or may not - * cause the object to emit some data. - */ - virtual void pass () = 0; - - /** Seek this decoder to as close as possible to some time, - * expressed relative to our source's start. - * @param t Time. - * @param a true to try hard to be accurate, otherwise false. +protected: + /** Seek so that the next pass() will yield the next thing + * (video/sound frame, subtitle etc.) at or after the requested + * time. Pass accurate = true to try harder to get close to + * the request. Note that seeking to time t may mean that + * the next pass() yields, for example, audio at time t and then + * video before it. */ - virtual void seek (Time) = 0; - - /** Seek back one video frame */ - virtual void seek_back () = 0; - - /** Seek forward one video frame */ - virtual void seek_forward () = 0; - - /** @return Approximate time of the next content that we will emit, - * expressed relative to the start of our source. - */ - virtual Time next () const = 0; - -protected: - - /** The Film that we are decoding in */ - boost::weak_ptr _film; - -private: - /** This will be called when our Film emits Changed */ - virtual void film_changed (Film::Property) {} - - /** Connection to our Film */ - boost::signals2::scoped_connection _film_connection; + virtual void seek (ContentTime time, bool accurate) = 0; + virtual bool pass () = 0; }; #endif