Merge master.
[dcpomatic.git] / src / lib / video_content.cc
index 8a4414c18b1830ed558fdcb4fb1aad77b572db89..84dee81d1f22935abaa6dd6abdf3e7383879a911 100644 (file)
@@ -1,29 +1,84 @@
+/*
+    Copyright (C) 2013 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
+    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 <libcxml/cxml.h>
 #include "video_content.h"
 #include "video_decoder.h"
+#include "ratio.h"
+
+#include "i18n.h"
 
-int const VideoContentProperty::VIDEO_LENGTH = 0;
-int const VideoContentProperty::VIDEO_SIZE = 1;
-int const VideoContentProperty::VIDEO_FRAME_RATE = 2;
+int const VideoContentProperty::VIDEO_SIZE      = 0;
+int const VideoContentProperty::VIDEO_FRAME_RATE = 1;
+int const VideoContentProperty::VIDEO_CROP      = 2;
+int const VideoContentProperty::VIDEO_RATIO     = 3;
 
 using std::string;
+using std::stringstream;
+using std::setprecision;
 using boost::shared_ptr;
 using boost::lexical_cast;
+using boost::optional;
 
-VideoContent::VideoContent (boost::filesystem::path f)
-       : Content (f)
+VideoContent::VideoContent (shared_ptr<const Film> f, Time s, ContentVideoFrame len)
+       : Content (f, s)
+       , _video_length (len)
+       , _video_frame_rate (0)
+       , _ratio (0)
+{
+
+}
+
+VideoContent::VideoContent (shared_ptr<const Film> f, boost::filesystem::path p)
+       : Content (f, p)
        , _video_length (0)
+       , _video_frame_rate (0)
+       , _ratio (0)
 {
 
 }
 
-VideoContent::VideoContent (shared_ptr<const cxml::Node> node)
-       : Content (node)
+VideoContent::VideoContent (shared_ptr<const Film> f, shared_ptr<const cxml::Node> node)
+       : Content (f, node)
 {
        _video_length = node->number_child<ContentVideoFrame> ("VideoLength");
        _video_size.width = node->number_child<int> ("VideoWidth");
        _video_size.height = node->number_child<int> ("VideoHeight");
        _video_frame_rate = node->number_child<float> ("VideoFrameRate");
+       _crop.left = node->number_child<int> ("LeftCrop");
+       _crop.right = node->number_child<int> ("RightCrop");
+       _crop.top = node->number_child<int> ("TopCrop");
+       _crop.bottom = node->number_child<int> ("BottomCrop");
+       optional<string> r = node->optional_string_child ("Ratio");
+       if (r) {
+               _ratio = Ratio::from_id (r.get ());
+       }
+}
+
+VideoContent::VideoContent (VideoContent const & o)
+       : Content (o)
+       , _video_length (o._video_length)
+       , _video_size (o._video_size)
+       , _video_frame_rate (o._video_frame_rate)
+       , _ratio (o._ratio)
+{
+
 }
 
 void
@@ -34,17 +89,134 @@ VideoContent::as_xml (xmlpp::Node* node) const
        node->add_child("VideoWidth")->add_child_text (lexical_cast<string> (_video_size.width));
        node->add_child("VideoHeight")->add_child_text (lexical_cast<string> (_video_size.height));
        node->add_child("VideoFrameRate")->add_child_text (lexical_cast<string> (_video_frame_rate));
+       node->add_child("LeftCrop")->add_child_text (boost::lexical_cast<string> (_crop.left));
+       node->add_child("RightCrop")->add_child_text (boost::lexical_cast<string> (_crop.right));
+       node->add_child("TopCrop")->add_child_text (boost::lexical_cast<string> (_crop.top));
+       node->add_child("BottomCrop")->add_child_text (boost::lexical_cast<string> (_crop.bottom));
+       if (_ratio) {
+               node->add_child("Ratio")->add_child_text (_ratio->id ());
+       }
 }
 
 void
 VideoContent::take_from_video_decoder (shared_ptr<VideoDecoder> d)
 {
+       /* These decoder calls could call other content methods which take a lock on the mutex */
+       libdcp::Size const vs = d->video_size ();
+       float const vfr = d->video_frame_rate ();
+       
         {
                 boost::mutex::scoped_lock lm (_mutex);
-                _video_size = d->native_size ();
-                _video_frame_rate = d->frames_per_second ();
+                _video_size = vs;
+               _video_frame_rate = vfr;
         }
         
-        Changed (VideoContentProperty::VIDEO_SIZE);
-        Changed (VideoContentProperty::VIDEO_FRAME_RATE);
+        signal_changed (VideoContentProperty::VIDEO_SIZE);
+        signal_changed (VideoContentProperty::VIDEO_FRAME_RATE);
+}
+
+
+string
+VideoContent::information () const
+{
+       if (video_size().width == 0 || video_size().height == 0) {
+               return "";
+       }
+       
+       stringstream s;
+
+       s << String::compose (
+               _("%1x%2 pixels (%3:1)"),
+               video_size().width,
+               video_size().height,
+               setprecision (3), float (video_size().width) / video_size().height
+               );
+       
+       return s.str ();
+}
+
+void
+VideoContent::set_crop (Crop c)
+{
+       {
+               boost::mutex::scoped_lock lm (_mutex);
+               _crop = c;
+       }
+       signal_changed (VideoContentProperty::VIDEO_CROP);
+}
+
+void
+VideoContent::set_left_crop (int c)
+{
+       {
+               boost::mutex::scoped_lock lm (_mutex);
+               
+               if (_crop.left == c) {
+                       return;
+               }
+               
+               _crop.left = c;
+       }
+       
+       signal_changed (VideoContentProperty::VIDEO_CROP);
+}
+
+void
+VideoContent::set_right_crop (int c)
+{
+       {
+               boost::mutex::scoped_lock lm (_mutex);
+               if (_crop.right == c) {
+                       return;
+               }
+               
+               _crop.right = c;
+       }
+       
+       signal_changed (VideoContentProperty::VIDEO_CROP);
+}
+
+void
+VideoContent::set_top_crop (int c)
+{
+       {
+               boost::mutex::scoped_lock lm (_mutex);
+               if (_crop.top == c) {
+                       return;
+               }
+               
+               _crop.top = c;
+       }
+       
+       signal_changed (VideoContentProperty::VIDEO_CROP);
+}
+
+void
+VideoContent::set_bottom_crop (int c)
+{
+       {
+               boost::mutex::scoped_lock lm (_mutex);
+               if (_crop.bottom == c) {
+                       return;
+               }
+               
+               _crop.bottom = c;
+       }
+
+       signal_changed (VideoContentProperty::VIDEO_CROP);
+}
+
+void
+VideoContent::set_ratio (Ratio const * r)
+{
+       {
+               boost::mutex::scoped_lock lm (_mutex);
+               if (_ratio == r) {
+                       return;
+               }
+
+               _ratio = r;
+       }
+
+       signal_changed (VideoContentProperty::VIDEO_RATIO);
 }