/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
- 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 <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.
*/
-#include <openjpeg.h>
-#include "AS_DCP.h"
-#include "KM_fileio.h"
-#include "stereo_picture_frame.h"
+
+/** @file src/stereo_picture_frame.cc
+ * @brief StereoPictureFrame class
+ */
+
+
+#include "colour_conversion.h"
+#include "compose.hpp"
+#include "crypto_context.h"
#include "exceptions.h"
-#include "argb_frame.h"
-#include "lut.h"
-#include "util.h"
-#include "gamma_lut.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>
-#define DCI_GAMMA 2.6
using std::string;
-using boost::shared_ptr;
+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 mxf_path Path to the asset's MXF file.
+ * @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 (boost::filesystem::path mxf_path, int n)
+StereoPictureFrame::StereoPictureFrame (ASDCP::JP2K::MXFSReader* reader, int n, shared_ptr<DecryptionContext> c, bool check_hmac)
{
- ASDCP::JP2K::MXFSReader reader;
- Kumu::Result_t r = reader.OpenRead (mxf_path.string().c_str());
- if (ASDCP_FAILURE (r)) {
- boost::throw_exception (FileError ("could not open MXF file for reading", mxf_path, r));
- }
-
/* XXX: unfortunate guesswork on this buffer size */
- _buffer = new ASDCP::JP2K::SFrameBuffer (4 * Kumu::Megabyte);
+ _buffer = make_shared<ASDCP::JP2K::SFrameBuffer>(4 * Kumu::Megabyte);
- if (ASDCP_FAILURE (reader.ReadFrame (n, *_buffer))) {
- boost::throw_exception (DCPReadError ("could not read video frame"));
+ 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 ()
+
+StereoPictureFrame::StereoPictureFrame ()
{
- delete _buffer;
+ _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).
- *
- * @return An ARGB representation of one of the eyes (left or right)
- * of this frame. This is ARGB in the Cairo sense, so that each
- * pixel takes up 4 bytes; the first byte is blue, second green,
- * third red and fourth alpha (always 255).
- *
*/
-shared_ptr<ARGBFrame>
-StereoPictureFrame::argb_frame (Eye eye, int reduce, float srgb_gamma) const
+shared_ptr<OpenJPEGImage>
+StereoPictureFrame::xyz_image (Eye eye, int reduce) const
{
- shared_ptr<XYZFrame> xyz_frame;
switch (eye) {
- case LEFT:
- xyz_frame = decompress_j2k (const_cast<uint8_t*> (_buffer->Left.RoData()), _buffer->Left.Size(), reduce);
- break;
- case RIGHT:
- xyz_frame = decompress_j2k (const_cast<uint8_t*> (_buffer->Right.RoData()), _buffer->Right.Size(), reduce);
- break;
+ 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 xyz_to_rgb (xyz_frame, GammaLUT::cache.get (12, DCI_GAMMA), GammaLUT::cache.get (12, 1 / srgb_gamma));
-}
-uint8_t const *
-StereoPictureFrame::left_j2k_data () const
-{
- return _buffer->Left.RoData ();
+ return {};
}
-int
-StereoPictureFrame::left_j2k_size () const
-{
- return _buffer->Left.Size ();
-}
-uint8_t const *
-StereoPictureFrame::right_j2k_data () const
+shared_ptr<StereoPictureFrame::Part>
+StereoPictureFrame::right () const
{
- return _buffer->Right.RoData ();
+ return make_shared<Part>(_buffer, Eye::RIGHT);
}
-int
-StereoPictureFrame::right_j2k_size () const
+
+shared_ptr<StereoPictureFrame::Part>
+StereoPictureFrame::left () const
{
- return _buffer->Right.Size ();
+ return make_shared<Part>(_buffer, Eye::LEFT);
}
+
+
projects / libdcp.git / blobdiff