2 Copyright (C) 2012-2013 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.
21 #include "KM_fileio.h"
22 #include "mono_picture_asset_writer.h"
23 #include "exceptions.h"
24 #include "picture_asset.h"
26 #include "picture_asset_writer_common.cc"
31 using boost::shared_ptr;
32 using namespace libdcp;
34 struct MonoPictureAssetWriter::ASDCPState : public ASDCPStateBase
36 ASDCP::JP2K::MXFWriter mxf_writer;
39 /** @param a Asset to write to. `a' must not be deleted while
40 * this writer class still exists, or bad things will happen.
42 MonoPictureAssetWriter::MonoPictureAssetWriter (PictureAsset* asset, bool overwrite)
43 : PictureAssetWriter (asset, overwrite)
44 , _state (new MonoPictureAssetWriter::ASDCPState)
46 _state->encryption_context = asset->encryption_context ();
50 MonoPictureAssetWriter::start (uint8_t* data, int size)
52 libdcp::start (this, _state, _asset, data, size);
56 MonoPictureAssetWriter::write (uint8_t* data, int size)
64 if (ASDCP_FAILURE (_state->j2k_parser.OpenReadFrame (data, size, _state->frame_buffer))) {
65 boost::throw_exception (MiscError ("could not parse J2K frame"));
68 uint64_t const before_offset = _state->mxf_writer.Tell ();
71 if (ASDCP_FAILURE (_state->mxf_writer.WriteFrame (_state->frame_buffer, _state->encryption_context, 0, &hash))) {
72 boost::throw_exception (MXFFileError ("error in writing video MXF", _asset->path().string()));
76 return FrameInfo (before_offset, _state->mxf_writer.Tell() - before_offset, hash);
80 MonoPictureAssetWriter::fake_write (int size)
85 if (ASDCP_FAILURE (_state->mxf_writer.FakeWriteFrame (size))) {
86 boost::throw_exception (MXFFileError ("error in writing video MXF", _asset->path().string()));
93 MonoPictureAssetWriter::finalize ()
97 if (ASDCP_FAILURE (_state->mxf_writer.Finalize())) {
98 boost::throw_exception (MXFFileError ("error in finalizing video MXF", _asset->path().string()));
102 _asset->set_intrinsic_duration (_frames_written);
103 _asset->set_duration (_frames_written);