*/
/** @file src/decoder.h
- * @brief Parent class for decoders of content.
+ * @brief Decoder class.
*/
#ifndef DCPOMATIC_DECODER_H
#include <boost/weak_ptr.hpp>
#include <boost/utility.hpp>
#include "types.h"
+#include "dcpomatic_time.h"
-class Film;
class Decoded;
+class Film;
/** @class Decoder.
* @brief Parent class for decoders of content.
class Decoder : public boost::noncopyable
{
public:
- Decoder (boost::shared_ptr<const Film>);
virtual ~Decoder () {}
- /** Seek so that the next get_*() will yield the next thing
+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.
- */
- virtual void seek (ContentTime time, bool accurate);
-
- boost::shared_ptr<Decoded> peek ();
- void consume ();
-
-protected:
-
- /** Perform one decode pass of the content, which may or may not
- * result in a complete quantum (Decoded object) of decoded stuff
- * being made ready.
- * @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).
+ * 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 (ContentTime time, bool accurate) = 0;
virtual bool pass () = 0;
- virtual void flush () {};
-
- /** The Film that we are decoding in */
- boost::weak_ptr<const Film> _film;
-
- std::list<boost::shared_ptr<Decoded> > _pending;
- bool _done;
};
#endif