/*
- Copyright (C) 2012-2013 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
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
#ifndef DCPOMATIC_DECODER_H
#define DCPOMATIC_DECODER_H
+#include "types.h"
+#include "dcpomatic_time.h"
#include <boost/shared_ptr.hpp>
#include <boost/weak_ptr.hpp>
#include <boost/utility.hpp>
-#include "types.h"
-#include "dcpomatic_time.h"
class Decoded;
virtual ~Decoder () {}
protected:
+ friend class AudioDecoderStream;
+
/** 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.
+ * 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 seek (ContentTime time, bool accurate) = 0;
- virtual bool pass () = 0;
+
+ enum PassReason {
+ PASS_REASON_VIDEO,
+ PASS_REASON_AUDIO,
+ PASS_REASON_SUBTITLE
+ };
+
+ virtual bool pass (PassReason reason) = 0;
};
#endif