-};
-
-class MonoPictureAsset;
-
-struct FrameInfo
-{
- FrameInfo (uint64_t o, uint64_t s, std::string h)
- : offset (o)
- , size (s)
- , hash (h)
- {}
-
- FrameInfo (std::istream& s);
-
- void write (std::ostream& s);
-
- uint64_t offset;
- uint64_t size;
- std::string hash;
-};
-
-/** A helper class for writing to MonoPictureAssets progressively (i.e. writing frame-by-frame,
- * rather than giving libdcp all the frames in one go).
- *
- * Objects of this class can only be created with MonoPictureAsset::start_write().
- *
- * Frames can be written to the MonoPictureAsset by calling write() with a JPEG2000 image
- * (a verbatim .j2 file). finalize() must be called after the last frame has been written.
- * The action of finalize() can't be done in MonoPictureAssetWriter's destructor as it may
- * throw an exception.
- */
-class MonoPictureAssetWriter
-{
-public:
- ~MonoPictureAssetWriter ();
-
- FrameInfo write (uint8_t* data, int size);
- void fake_write (int size);
- void finalize ();
-
-private:
- friend class MonoPictureAsset;
-
- MonoPictureAssetWriter (MonoPictureAsset *, bool, MXFMetadata const &);
- void start (uint8_t *, int);
-
- /* no copy construction */
- MonoPictureAssetWriter (MonoPictureAssetWriter const &);
- MonoPictureAssetWriter& operator= (MonoPictureAssetWriter const &);
-
- /* do this with an opaque pointer so we don't have to include
- ASDCP headers
- */
-
- struct ASDCPState;
- boost::shared_ptr<ASDCPState> _state;
-
- MonoPictureAsset* _asset;
- /** Number of picture frames written to the asset so far */
- int _frames_written;
- bool _started;
- /** true if finalize() has been called */
- bool _finalized;
- bool _overwrite;
- MXFMetadata _metadata;
-};
-
-/** A 2D (monoscopic) picture asset */
-class MonoPictureAsset : public PictureAsset
-{
-public:
- /** Construct a MonoPictureAsset, generating the MXF from the JPEG2000 files.
- * This may take some time; progress is indicated by emission of the Progress signal.
- *
- * @param files Pathnames of JPEG2000 files, in frame order.
- * @param directory Directory in which to create MXF file.
- * @param mxf_name Name of MXF file to create.
- * @param progress Signal to inform of progress.
- * @param fps Video frames per second.
- * @param intrinsic_duration Length of the whole asset in frames.
- * @param size Size of images in pixels.
- */
- MonoPictureAsset (
- std::vector<std::string> const & files,
- std::string directory,
- std::string mxf_name,
- boost::signals2::signal<void (float)>* progress,
- int fps,
- int intrinsic_duration,
- Size size,
- MXFMetadata const & metadata = MXFMetadata ()
- );
-
- /** Construct a MonoPictureAsset, generating the MXF from the JPEG2000 files.
- * This may take some time; progress is indicated by emission of the Progress signal.
- *
- * @param get_path Functor which returns a JPEG2000 file path for a given frame (frames counted from 0).
- * @param directory Directory in which to create MXF file.
- * @param mxf_name Name of MXF file to create.
- * @param progress Signal to inform of progress.
- * @param fps Video frames per second.
- * @param intrinsic_duration Length of the whole asset in frames.
- * @param size Size of images in pixels.
- */
- MonoPictureAsset (
- boost::function<std::string (int)> get_path,
- std::string directory,
- std::string mxf_name,
- boost::signals2::signal<void (float)>* progress,
- int fps,
- int intrinsic_duration,
- Size size,
- MXFMetadata const & metadata = MXFMetadata ()
- );
-
- /** Construct a MonoPictureAsset, reading the MXF from disk.
- * @param directory Directory that the MXF is in.
- * @param mxf_name The filename of the MXF within `directory'.
- */
- MonoPictureAsset (std::string directory, std::string mxf_name);
-
- /** Construct a MonoPictureAsset for progressive writing using
- * start_write() and a MonoPictureAssetWriter.
- *
- * @param directory Directory to put the MXF in.
- * @param mxf_name Filename of the MXF within this directory.
- * @param fps Video frames per second.
- * @param size Size in pixels that the picture frames will be.
- */
- MonoPictureAsset (std::string directory, std::string mxf_name, int fps, Size size);
-
- /** Start a progressive write to a MonoPictureAsset */
- boost::shared_ptr<MonoPictureAssetWriter> start_write (bool, MXFMetadata const & metadata = MXFMetadata ());
-
- boost::shared_ptr<const MonoPictureFrame> get_frame (int n) const;
- bool equals (boost::shared_ptr<const Asset> other, EqualityOptions opt, boost::function<void (NoteType, std::string)> note) const;