X-Git-Url: https://main.carlh.net/gitweb/?p=dcpomatic.git;a=blobdiff_plain;f=src%2Flib%2Fimage_examiner.cc;h=ae12d7adb3570363304326250fe55474b3827039;hp=4ff324f68d4d76ba29e6437e353e48d1b178be65;hb=ac34066d5e448d1984d11a180be74e31b6e13b5c;hpb=d50bc4c21be3e0766916b47a6e688cf896bed059

diff --git a/src/lib/image_examiner.cc b/src/lib/image_examiner.cc
index 4ff324f68..ae12d7adb 100644
--- a/src/lib/image_examiner.cc
+++ b/src/lib/image_examiner.cc
@@ -1,68 +1,109 @@
 /*
-    Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2013-2021 Carl Hetherington <cth@carlh.net>
 
-    This program is free software; you can redistribute it and/or modify
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic 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,
+    DCP-o-matic 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 DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
 
 */
 
-#include <iostream>
-#include <Magick++.h>
+
 #include "image_content.h"
 #include "image_examiner.h"
 #include "film.h"
 #include "job.h"
 #include "exceptions.h"
 #include "config.h"
+#include "cross.h"
+#include "compose.hpp"
+#include "ffmpeg_image_proxy.h"
+#include "image.h"
+#include <dcp/openjpeg_image.h>
+#include <dcp/exceptions.h>
+#include <dcp/j2k_transcode.h>
+#include <iostream>
 
 #include "i18n.h"
 
+
 using std::cout;
 using std::list;
 using std::sort;
-using boost::shared_ptr;
+using std::shared_ptr;
+using boost::optional;
+
 
 ImageExaminer::ImageExaminer (shared_ptr<const Film> film, shared_ptr<const ImageContent> content, shared_ptr<Job>)
 	: _film (film)
 	, _image_content (content)
-	, _video_length (0)
 {
-	using namespace MagickCore;
-	Magick::Image* image = new Magick::Image (content->path(0).string());
-	_video_size = libdcp::Size (image->columns(), image->rows());
-	delete image;
+	auto path = content->path(0);
+	if (valid_j2k_file (path)) {
+		auto size = boost::filesystem::file_size (path);
+		auto f = fopen_boost (path, "rb");
+		if (!f) {
+			throw FileError ("Could not open file for reading", path);
+		}
+		auto buffer = new uint8_t[size];
+		checked_fread (buffer, size, f, path);
+		fclose (f);
+		try {
+			_video_size = dcp::decompress_j2k (buffer, size, 0)->size ();
+		} catch (dcp::ReadError& e) {
+			delete[] buffer;
+			throw DecodeError (String::compose (_("Could not decode JPEG2000 file %1 (%2)"), path, e.what ()));
+		}
+		delete[] buffer;
+	} else {
+		FFmpegImageProxy proxy(content->path(0));
+		_video_size = proxy.image(Image::Alignment::COMPACT).image->size();
+	}
 
 	if (content->still ()) {
-		_video_length = Config::instance()->default_still_length() * video_frame_rate();
+		_video_length = Config::instance()->default_still_length() * video_frame_rate().get_value_or (film->video_frame_rate ());
 	} else {
 		_video_length = _image_content->number_of_paths ();
 	}
 }
 
-libdcp::Size
+
+dcp::Size
 ImageExaminer::video_size () const
 {
 	return _video_size.get ();
 }
 
-float
+
+optional<double>
 ImageExaminer::video_frame_rate () const
 {
-	boost::shared_ptr<const Film> f = _film.lock ();
-	if (!f) {
-		return 24;
+	if (_image_content->video_frame_rate()) {
+		/* The content already knows what frame rate it should be */
+		return _image_content->video_frame_rate().get();
 	}
 
-	return f->video_frame_rate ();
+	/* Don't know */
+	return {};
+}
+
+
+bool
+ImageExaminer::yuv () const
+{
+	/* We never convert ImageSource from YUV to RGB (though maybe sometimes we should)
+	   so it makes sense to just say they are never YUV so the option of a conversion
+	   to RGB is not offered.
+	*/
+	return false;
 }