X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fdecoder.h;h=583a92636443ba7cd1bd650eb3cf61144017394c;hb=d2137ac5db409e686b4d9b3fa567935a5e416d41;hp=cfca6867f652d3fc9d2d5be7320d75128060cffe;hpb=d0d584a7dde6de383302615634fdee17e9724fe8;p=dcpomatic.git diff --git a/src/lib/decoder.h b/src/lib/decoder.h index cfca6867f..583a92636 100644 --- a/src/lib/decoder.h +++ b/src/lib/decoder.h @@ -18,53 +18,39 @@ */ /** @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 "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. +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 ensure that, at worst, + * the next thing we yield comes before `time'. This may entail + * seeking some way before `time' to be on the safe side. + * Alternatively, if seeking is 100% accurate for this decoder, + * it may seek to just the right spot. */ - virtual void pass () = 0; - - virtual bool done () 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