2 Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include "stereo_picture_mxf_writer.h"
21 #include "exceptions.h"
22 #include "picture_mxf.h"
24 #include "KM_fileio.h"
26 #include "picture_mxf_writer_common.cc"
31 using boost::shared_ptr;
34 struct StereoPictureMXFWriter::ASDCPState : public ASDCPStateBase
36 ASDCP::JP2K::MXFSWriter mxf_writer;
39 StereoPictureMXFWriter::StereoPictureMXFWriter (PictureMXF* mxf, boost::filesystem::path file, Standard standard, bool overwrite)
40 : PictureMXFWriter (mxf, file, standard, overwrite)
41 , _state (new StereoPictureMXFWriter::ASDCPState)
42 , _next_eye (EYE_LEFT)
44 _state->encryption_context = mxf->encryption_context ();
48 StereoPictureMXFWriter::start (uint8_t* data, int size)
50 dcp::start (this, _state, _standard, _picture_mxf, data, size);
51 _picture_mxf->set_frame_rate (Fraction (_picture_mxf->edit_rate().numerator * 2, _picture_mxf->edit_rate().denominator));
54 /** Write a frame for one eye. Frames must be written left, then right, then left etc.
55 * @param data JPEG2000 data.
56 * @param size Size of data.
59 StereoPictureMXFWriter::write (uint8_t* data, int size)
67 if (ASDCP_FAILURE (_state->j2k_parser.OpenReadFrame (data, size, _state->frame_buffer))) {
68 boost::throw_exception (MiscError ("could not parse J2K frame"));
71 uint64_t const before_offset = _state->mxf_writer.Tell ();
74 Kumu::Result_t r = _state->mxf_writer.WriteFrame (
76 _next_eye == EYE_LEFT ? ASDCP::JP2K::SP_LEFT : ASDCP::JP2K::SP_RIGHT,
77 _state->encryption_context,
82 if (ASDCP_FAILURE (r)) {
83 boost::throw_exception (MXFFileError ("error in writing video MXF", _mxf->file().string(), r));
86 _next_eye = _next_eye == EYE_LEFT ? EYE_RIGHT : EYE_LEFT;
88 if (_next_eye == EYE_LEFT) {
92 return FrameInfo (before_offset, _state->mxf_writer.Tell() - before_offset, hash);
96 StereoPictureMXFWriter::fake_write (int size)
101 Kumu::Result_t r = _state->mxf_writer.FakeWriteFrame (size, _next_eye == EYE_LEFT ? ASDCP::JP2K::SP_LEFT : ASDCP::JP2K::SP_RIGHT);
102 if (ASDCP_FAILURE (r)) {
103 boost::throw_exception (MXFFileError ("error in writing video MXF", _mxf->file().string(), r));
106 _next_eye = _next_eye == EYE_LEFT ? EYE_RIGHT : EYE_LEFT;
107 if (_next_eye == EYE_LEFT) {
113 StereoPictureMXFWriter::finalize ()
115 Kumu::Result_t r = _state->mxf_writer.Finalize();
116 if (ASDCP_FAILURE (r)) {
117 boost::throw_exception (MXFFileError ("error in finalizing video MXF", _mxf->file().string(), r));
120 PictureMXFWriter::finalize ();