Rename files to mention J2K.

1 files changed, 148 insertions, 0 deletions

diff --git a/src/stereo_j2k_picture_frame.cc b/src/stereo_j2k_picture_frame.cc
new file mode 100644
index 00000000..8d3a2757
--- /dev/null
+++ b/src/stereo_j2k_picture_frame.cc
@@ -0,0 +1,148 @@
+/*
+    Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
+
+    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.
+
+    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 libdcp.  If not, see <http://www.gnu.org/licenses/>.
+
+    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/stereo_picture_frame.cc
+ *  @brief StereoPictureFrame class
+ */
+
+
+#include "colour_conversion.h"
+#include "compose.hpp"
+#include "crypto_context.h"
+#include "exceptions.h"
+#include "j2k_transcode.h"
+#include "rgb_xyz.h"
+#include "stereo_picture_frame.h"
+#include "util.h"
+#include <asdcp/AS_DCP.h>
+#include <asdcp/KM_fileio.h>
+
+
+using std::string;
+using std::shared_ptr;
+using std::make_shared;
+using namespace dcp;
+
+
+StereoPictureFrame::Part::Part (shared_ptr<ASDCP::JP2K::SFrameBuffer> buffer, Eye eye)
+	: _buffer (buffer)
+	, _eye (eye)
+{
+
+}
+
+
+ASDCP::JP2K::FrameBuffer &
+StereoPictureFrame::Part::mono () const
+{
+	return _eye == Eye::LEFT ? _buffer->Left : _buffer->Right;
+}
+
+
+uint8_t const *
+StereoPictureFrame::Part::data () const
+{
+	return mono().RoData();
+}
+
+
+uint8_t *
+StereoPictureFrame::Part::data ()
+{
+	return mono().Data();
+}
+
+
+int
+StereoPictureFrame::Part::size () const
+{
+	return mono().Size();
+}
+
+
+/** Make a picture frame from a 3D (stereoscopic) asset.
+ *  @param reader Reader for the MXF file.
+ *  @param n Frame within the asset, not taking EntryPoint into account.
+ *  @param check_hmac true to check the HMAC and give an error if it is not as expected.
+ */
+StereoPictureFrame::StereoPictureFrame (ASDCP::JP2K::MXFSReader* reader, int n, shared_ptr<DecryptionContext> c, bool check_hmac)
+{
+	/* XXX: unfortunate guesswork on this buffer size */
+	_buffer = make_shared<ASDCP::JP2K::SFrameBuffer>(4 * Kumu::Megabyte);
+
+	if (ASDCP_FAILURE (reader->ReadFrame (n, *_buffer, c->context(), check_hmac ? c->hmac() : nullptr))) {
+		boost::throw_exception (ReadError (String::compose ("could not read video frame %1 of %2", n)));
+	}
+}
+
+
+StereoPictureFrame::StereoPictureFrame ()
+{
+	_buffer = make_shared<ASDCP::JP2K::SFrameBuffer>(4 * Kumu::Megabyte);
+}
+
+
+/** @param eye Eye to return (EYE_LEFT or EYE_RIGHT).
+ *  @param reduce a factor by which to reduce the resolution
+ *  of the image, expressed as a power of two (pass 0 for no
+ *  reduction).
+ */
+shared_ptr<OpenJPEGImage>
+StereoPictureFrame::xyz_image (Eye eye, int reduce) const
+{
+	switch (eye) {
+	case Eye::LEFT:
+		return decompress_j2k (const_cast<uint8_t*>(_buffer->Left.RoData()), _buffer->Left.Size(), reduce);
+	case Eye::RIGHT:
+		return decompress_j2k (const_cast<uint8_t*>(_buffer->Right.RoData()), _buffer->Right.Size(), reduce);
+	}
+
+	return {};
+}
+
+
+shared_ptr<StereoPictureFrame::Part>
+StereoPictureFrame::right () const
+{
+	return make_shared<Part>(_buffer, Eye::RIGHT);
+}
+
+
+shared_ptr<StereoPictureFrame::Part>
+StereoPictureFrame::left () const
+{
+	return make_shared<Part>(_buffer, Eye::LEFT);
+}
+
+