X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fdecoder.h;h=c5a359e1a86afd52a7750c90d662447d5ce42b7b;hb=bdbfd6b08856a445446bfd845f1c43109d184250;hp=0f14dbba7255c5cc356d0f22ff0ed1eb54dbdaf1;hpb=a4c19a34244aeaf183c25878933b570fc5c0ee34;p=dcpomatic.git diff --git a/src/lib/decoder.h b/src/lib/decoder.h index 0f14dbba7..c5a359e1a 100644 --- a/src/lib/decoder.h +++ b/src/lib/decoder.h @@ -1,5 +1,5 @@ /* - Copyright (C) 2012-2013 Carl Hetherington + Copyright (C) 2012-2015 Carl Hetherington This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -18,17 +18,17 @@ */ /** @file src/decoder.h - * @brief Parent class for decoders of content. + * @brief Decoder class. */ #ifndef DCPOMATIC_DECODER_H #define DCPOMATIC_DECODER_H +#include "types.h" +#include "dcpomatic_time.h" #include #include #include -#include "types.h" -#include "dcpomatic_time.h" class Decoded; @@ -38,36 +38,22 @@ class Decoded; class Decoder : public boost::noncopyable { public: - Decoder (); virtual ~Decoder () {} - /** Seek so that the next peek() 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. - */ - virtual void seek (ContentTime time, bool accurate); +protected: + friend class AudioDecoderStream; - boost::shared_ptr peek (); - - /* Consume the last peek()ed thing so that it won't be returned - * from the next peek(). + /** 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. */ - void consume (); + virtual void seek (ContentTime time, bool accurate) = 0; -protected: - - /** Perform one decode pass of the content, which may or may not - * result in a complete quantum (Decoded object) of decoded stuff - * being added to _pending. - * @return true if the decoder is done (i.e. no more data will be - * produced by any future calls to pass() without a seek() first). - */ virtual bool pass () = 0; - virtual void flush () {}; - - std::list > _pending; - bool _done; }; #endif