From: Carl Hetherington Date: Sun, 7 Sep 2014 23:28:03 +0000 (+0100) Subject: Move VideoContentScale to its own file. X-Git-Tag: v2.0.48~561^2~34 X-Git-Url: https://main.carlh.net/gitweb/?p=dcpomatic.git;a=commitdiff_plain;h=34be35fc1ba9a0c0eaebd3e2a6be3eab134e80af Move VideoContentScale to its own file. --- diff --git a/src/lib/video_content.cc b/src/lib/video_content.cc index 5a80dba74..13f2cf516 100644 --- a/src/lib/video_content.cc +++ b/src/lib/video_content.cc @@ -53,8 +53,6 @@ using boost::optional; using boost::dynamic_pointer_cast; using libdcp::raw_convert; -vector VideoContentScale::_scales; - VideoContent::VideoContent (shared_ptr f) : Content (f) , _video_length (0) @@ -427,138 +425,3 @@ VideoContent::set_video_frame_rate (float r) signal_changed (VideoContentProperty::VIDEO_FRAME_RATE); } -VideoContentScale::VideoContentScale (Ratio const * r) - : _ratio (r) - , _scale (true) -{ - -} - -VideoContentScale::VideoContentScale () - : _ratio (0) - , _scale (false) -{ - -} - -VideoContentScale::VideoContentScale (bool scale) - : _ratio (0) - , _scale (scale) -{ - -} - -VideoContentScale::VideoContentScale (shared_ptr node) - : _ratio (0) - , _scale (true) -{ - optional r = node->optional_string_child ("Ratio"); - if (r) { - _ratio = Ratio::from_id (r.get ()); - } else { - _scale = node->bool_child ("Scale"); - } -} - -void -VideoContentScale::as_xml (xmlpp::Node* node) const -{ - if (_ratio) { - node->add_child("Ratio")->add_child_text (_ratio->id ()); - } else { - node->add_child("Scale")->add_child_text (_scale ? "1" : "0"); - } -} - -string -VideoContentScale::id () const -{ - SafeStringStream s; - - if (_ratio) { - s << _ratio->id (); - } else { - s << (_scale ? "S1" : "S0"); - } - - return s.str (); -} - -string -VideoContentScale::name () const -{ - if (_ratio) { - return _ratio->nickname (); - } - - if (_scale) { - return _("No stretch"); - } - - return _("No scale"); -} - -VideoContentScale -VideoContentScale::from_id (string id) -{ - Ratio const * r = Ratio::from_id (id); - if (r) { - return VideoContentScale (r); - } - - if (id == "S0") { - return VideoContentScale (false); - } - - return VideoContentScale (true); -} - -/** @param display_container Size of the container that we are displaying this content in. - * @param film_container The size of the film's image. - */ -libdcp::Size -VideoContentScale::size (shared_ptr c, libdcp::Size display_container, libdcp::Size film_container) const -{ - if (_ratio) { - return fit_ratio_within (_ratio->ratio (), display_container); - } - - libdcp::Size const ac = c->video_size_after_crop (); - - /* Force scale if the film_container is smaller than the content's image */ - if (_scale || film_container.width < ac.width || film_container.height < ac.height) { - return fit_ratio_within (ac.ratio (), display_container); - } - - /* Scale the image so that it will be in the right place in film_container, even if display_container is a - different size. - */ - return libdcp::Size ( - c->video_size().width * float(display_container.width) / film_container.width, - c->video_size().height * float(display_container.height) / film_container.height - ); -} - -void -VideoContentScale::setup_scales () -{ - vector ratios = Ratio::all (); - for (vector::const_iterator i = ratios.begin(); i != ratios.end(); ++i) { - _scales.push_back (VideoContentScale (*i)); - } - - _scales.push_back (VideoContentScale (true)); - _scales.push_back (VideoContentScale (false)); -} - -bool -operator== (VideoContentScale const & a, VideoContentScale const & b) -{ - return (a.ratio() == b.ratio() && a.scale() == b.scale()); -} - -bool -operator!= (VideoContentScale const & a, VideoContentScale const & b) -{ - return (a.ratio() != b.ratio() || a.scale() != b.scale()); -} diff --git a/src/lib/video_content.h b/src/lib/video_content.h index 940467680..3a7b44306 100644 --- a/src/lib/video_content.h +++ b/src/lib/video_content.h @@ -22,6 +22,7 @@ #include "content.h" #include "colour_conversion.h" +#include "video_content_scale.h" class VideoExaminer; class Ratio; @@ -37,45 +38,6 @@ public: static int const COLOUR_CONVERSION; }; -class VideoContentScale -{ -public: - VideoContentScale (); - VideoContentScale (Ratio const *); - VideoContentScale (bool); - VideoContentScale (boost::shared_ptr); - - libdcp::Size size (boost::shared_ptr, libdcp::Size, libdcp::Size) const; - std::string id () const; - std::string name () const; - void as_xml (xmlpp::Node *) const; - - Ratio const * ratio () const { - return _ratio; - } - - bool scale () const { - return _scale; - } - - static void setup_scales (); - static std::vector all () { - return _scales; - } - static VideoContentScale from_id (std::string id); - -private: - /** a ratio to stretch the content to, or 0 for no stretch */ - Ratio const * _ratio; - /** true if we want to scale the content */ - bool _scale; - - static std::vector _scales; -}; - -bool operator== (VideoContentScale const & a, VideoContentScale const & b); -bool operator!= (VideoContentScale const & a, VideoContentScale const & b); - class VideoContent : public virtual Content { public: diff --git a/src/lib/video_content_scale.cc b/src/lib/video_content_scale.cc new file mode 100644 index 000000000..e603582b8 --- /dev/null +++ b/src/lib/video_content_scale.cc @@ -0,0 +1,171 @@ +/* + Copyright (C) 2013-2014 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 + 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, + 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. + +*/ + +#include +#include +#include +#include "video_content_scale.h" +#include "ratio.h" +#include "safe_stringstream.h" +#include "util.h" + +#include "i18n.h" + +using std::vector; +using std::string; +using boost::shared_ptr; +using boost::optional; + +vector VideoContentScale::_scales; + +VideoContentScale::VideoContentScale (Ratio const * r) + : _ratio (r) + , _scale (true) +{ + +} + +VideoContentScale::VideoContentScale () + : _ratio (0) + , _scale (false) +{ + +} + +VideoContentScale::VideoContentScale (bool scale) + : _ratio (0) + , _scale (scale) +{ + +} + +VideoContentScale::VideoContentScale (shared_ptr node) + : _ratio (0) + , _scale (true) +{ + optional r = node->optional_string_child ("Ratio"); + if (r) { + _ratio = Ratio::from_id (r.get ()); + } else { + _scale = node->bool_child ("Scale"); + } +} + +void +VideoContentScale::as_xml (xmlpp::Node* node) const +{ + if (_ratio) { + node->add_child("Ratio")->add_child_text (_ratio->id ()); + } else { + node->add_child("Scale")->add_child_text (_scale ? "1" : "0"); + } +} + +string +VideoContentScale::id () const +{ + SafeStringStream s; + + if (_ratio) { + s << _ratio->id (); + } else { + s << (_scale ? "S1" : "S0"); + } + + return s.str (); +} + +string +VideoContentScale::name () const +{ + if (_ratio) { + return _ratio->nickname (); + } + + if (_scale) { + return _("No stretch"); + } + + return _("No scale"); +} + +VideoContentScale +VideoContentScale::from_id (string id) +{ + Ratio const * r = Ratio::from_id (id); + if (r) { + return VideoContentScale (r); + } + + if (id == "S0") { + return VideoContentScale (false); + } + + return VideoContentScale (true); +} + +/** @param display_container Size of the container that we are displaying this content in. + * @param film_container The size of the film's image. + */ +libdcp::Size +VideoContentScale::size (shared_ptr c, libdcp::Size display_container, libdcp::Size film_container) const +{ + if (_ratio) { + return fit_ratio_within (_ratio->ratio (), display_container); + } + + libdcp::Size const ac = c->video_size_after_crop (); + + /* Force scale if the film_container is smaller than the content's image */ + if (_scale || film_container.width < ac.width || film_container.height < ac.height) { + return fit_ratio_within (ac.ratio (), display_container); + } + + /* Scale the image so that it will be in the right place in film_container, even if display_container is a + different size. + */ + return libdcp::Size ( + c->video_size().width * float(display_container.width) / film_container.width, + c->video_size().height * float(display_container.height) / film_container.height + ); +} + +void +VideoContentScale::setup_scales () +{ + vector ratios = Ratio::all (); + for (vector::const_iterator i = ratios.begin(); i != ratios.end(); ++i) { + _scales.push_back (VideoContentScale (*i)); + } + + _scales.push_back (VideoContentScale (true)); + _scales.push_back (VideoContentScale (false)); +} + +bool +operator== (VideoContentScale const & a, VideoContentScale const & b) +{ + return (a.ratio() == b.ratio() && a.scale() == b.scale()); +} + +bool +operator!= (VideoContentScale const & a, VideoContentScale const & b) +{ + return (a.ratio() != b.ratio() || a.scale() != b.scale()); +} diff --git a/src/lib/video_content_scale.h b/src/lib/video_content_scale.h new file mode 100644 index 000000000..87dd2f1fa --- /dev/null +++ b/src/lib/video_content_scale.h @@ -0,0 +1,77 @@ +/* + Copyright (C) 2013-2014 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 + 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, + 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. + +*/ + +#ifndef DCPOMATIC_VIDEO_CONTENT_SCALE_H +#define DCPOMATIC_VIDEO_CONTENT_SCALE_H + +#include +#include +#include + +namespace cxml { + class Node; +} + +namespace xmlpp { + class Node; +} + +class Ratio; +class VideoContent; + +class VideoContentScale +{ +public: + VideoContentScale (); + VideoContentScale (Ratio const *); + VideoContentScale (bool); + VideoContentScale (boost::shared_ptr); + + libdcp::Size size (boost::shared_ptr, libdcp::Size, libdcp::Size) const; + std::string id () const; + std::string name () const; + void as_xml (xmlpp::Node *) const; + + Ratio const * ratio () const { + return _ratio; + } + + bool scale () const { + return _scale; + } + + static void setup_scales (); + static std::vector all () { + return _scales; + } + static VideoContentScale from_id (std::string id); + +private: + /** a ratio to stretch the content to, or 0 for no stretch */ + Ratio const * _ratio; + /** true if we want to scale the content */ + bool _scale; + + static std::vector _scales; +}; + +bool operator== (VideoContentScale const & a, VideoContentScale const & b); +bool operator!= (VideoContentScale const & a, VideoContentScale const & b); + +#endif diff --git a/src/lib/wscript b/src/lib/wscript index 1e4efddc4..6c1da1772 100644 --- a/src/lib/wscript +++ b/src/lib/wscript @@ -68,6 +68,7 @@ sources = """ update.cc util.cc video_content.cc + video_content_scale.cc video_decoder.cc writer.cc """