X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Fpicture_asset.h;h=d9f30ecee9548f69af24479922b802a786dc754f;hb=a1e7f77e8fcfd71cc8bf94d13ceb2decbacc3b50;hp=e540c074c9b8b39652de2d85b6a6358c1c5a5560;hpb=d8c9cbec9d87f28da338350880b7618b94f4da81;p=libdcp.git diff --git a/src/picture_asset.h b/src/picture_asset.h index e540c074..d9f30ece 100644 --- a/src/picture_asset.h +++ b/src/picture_asset.h @@ -1,90 +1,155 @@ /* - Copyright (C) 2012 Carl Hetherington + Copyright (C) 2012-2021 Carl Hetherington - This program is free software; you can redistribute it and/or modify + This file is part of libdcp. + + libdcp is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. - This program is distributed in the hope that it will be useful, + libdcp is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + along with libdcp. If not, see . + + In addition, as a special exception, the copyright holders give + permission to link the code of portions of this program with the + OpenSSL library under certain conditions as described in each + individual source file, and distribute linked combinations + including the two. + You must obey the GNU General Public License in all respects + for all of the code used other than OpenSSL. If you modify + file(s) with this exception, you may extend this exception to your + version of the file(s), but you are not obligated to do so. If you + do not wish to do so, delete this exception statement from your + version. If you delete this exception statement from all source + files in the program, then also delete it here. */ + /** @file src/picture_asset.h - * @brief An asset made up of JPEG2000 files + * @brief PictureAsset class */ -#include "asset.h" -namespace libdcp -{ +#ifndef LIBDCP_PICTURE_ASSET_H +#define LIBDCP_PICTURE_ASSET_H + + +#include "mxf.h" +#include "util.h" +#include "metadata.h" + + +namespace ASDCP { + namespace JP2K { + struct PictureDescriptor; + } +} + -/** @brief An asset made up of JPEG2000 files */ -class PictureAsset : public Asset +namespace dcp { + + +class MonoPictureFrame; +class StereoPictureFrame; +class PictureAssetWriter; + + +/** @class PictureAsset + * @brief An asset made up of JPEG2000 data + */ +class PictureAsset : public Asset, public MXF { public: - /** Construct a PictureAsset, 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 mxf_path Pathname of MXF file to create. - * @param progress Signal to inform of progress. - * @param fps Frames per second. - * @param length Length in frames. - * @param width Width of images in pixels. - * @param height Height of images in pixels. - */ - PictureAsset ( - std::vector const & files, - std::string mxf_path, - sigc::signal1* progress, - int fps, - int length, - int width, - int height - ); - - /** Construct a PictureAsset, 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 mxf_path Pathname of MXF file to create. - * @param progress Signal to inform of progress. - * @param fps Frames per second. - * @param length Length in frames. - * @param width Width of images in pixels. - * @param height Height of images in pixels. - */ - PictureAsset ( - sigc::slot get_path, - std::string mxf_path, - sigc::signal1* progress, - int fps, - int length, - int width, - int height - ); - - PictureAsset (std::string mxf_path, int fps, int length, int width, int height); - - /** Write details of this asset to a CPL stream. - * @param s Stream. + /** Load a PictureAsset from a file */ + explicit PictureAsset (boost::filesystem::path file); + + /** Create a new PictureAsset with a given edit rate and standard */ + explicit PictureAsset (Fraction edit_rate, Standard standard); + + enum class Behaviour { + OVERWRITE_EXISTING, + MAKE_NEW + }; + + virtual std::shared_ptr start_write ( + boost::filesystem::path file, + Behaviour behaviour + ) = 0; + + Size size () const { + return _size; + } + + void set_size (Size s) { + _size = s; + } + + Fraction frame_rate () const { + return _frame_rate; + } + + void set_frame_rate (Fraction r) { + _frame_rate = r; + } + + Fraction screen_aspect_ratio () const { + return _screen_aspect_ratio; + } + + void set_screen_aspect_ratio (Fraction r) { + _screen_aspect_ratio = r; + } + + Fraction edit_rate () const { + return _edit_rate; + } + + int64_t intrinsic_duration () const { + return _intrinsic_duration; + } + + static std::string static_pkl_type (Standard standard); + +protected: + friend class MonoPictureAssetWriter; + friend class StereoPictureAssetWriter; + + bool frame_buffer_equals ( + int frame, EqualityOptions const& opt, NoteHandler note, + uint8_t const * data_A, unsigned int size_A, uint8_t const * data_B, unsigned int size_B + ) const; + + bool descriptor_equals ( + ASDCP::JP2K::PictureDescriptor const & a, + ASDCP::JP2K::PictureDescriptor const & b, + NoteHandler note + ) const; + + void read_picture_descriptor (ASDCP::JP2K::PictureDescriptor const &); + + Fraction _edit_rate; + /** The total length of this content in video frames. The amount of + * content presented may be less than this. */ - void write_to_cpl (std::ostream& s) const; + int64_t _intrinsic_duration = 0; + /** picture size in pixels */ + Size _size; + Fraction _frame_rate; + Fraction _screen_aspect_ratio; private: - std::string path_from_list (int f, std::vector const & files) const; - void construct (sigc::slot); - - /** picture width in pixels */ - int _width; - /** picture height in pixels */ - int _height; + std::string pkl_type (Standard standard) const override; }; + } + + +#endif