diff options
| author | Carl Hetherington <cth@carlh.net> | 2013-09-25 21:31:10 +0100 |
|---|---|---|
| committer | Carl Hetherington <cth@carlh.net> | 2013-09-25 21:31:10 +0100 |
| commit | 566608b965e8ec0e08d9de128405d22ec7fedcd6 (patch) | |
| tree | 2fda53a5d6adb9427d0f1f5c1a5af050eddc44d9 /src/mono_picture_asset_writer.cc | |
| parent | f76647abae551840a43bb8f07189051ec20bab6d (diff) | |
Split up some files.
Diffstat (limited to 'src/mono_picture_asset_writer.cc')
| -rw-r--r-- | src/mono_picture_asset_writer.cc | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/src/mono_picture_asset_writer.cc b/src/mono_picture_asset_writer.cc new file mode 100644 index 00000000..1f384c28 --- /dev/null +++ b/src/mono_picture_asset_writer.cc @@ -0,0 +1,105 @@ +/* + Copyright (C) 2012-2013 Carl Hetherington <cth@carlh.net> + + This program 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, + 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. + +*/ + +#include "AS_DCP.h" +#include "KM_fileio.h" +#include "mono_picture_asset_writer.h" +#include "exceptions.h" +#include "picture_asset.h" + +#include "picture_asset_writer_common.cc" + +using std::istream; +using std::ostream; +using std::string; +using boost::shared_ptr; +using namespace libdcp; + +struct MonoPictureAssetWriter::ASDCPState : public ASDCPStateBase +{ + ASDCP::JP2K::MXFWriter mxf_writer; +}; + +/** @param a Asset to write to. `a' must not be deleted while + * this writer class still exists, or bad things will happen. + */ +MonoPictureAssetWriter::MonoPictureAssetWriter (PictureAsset* asset, bool overwrite) + : PictureAssetWriter (asset, overwrite) + , _state (new MonoPictureAssetWriter::ASDCPState) +{ + _state->encryption_context = asset->encryption_context (); +} + +void +MonoPictureAssetWriter::start (uint8_t* data, int size) +{ + libdcp::start (this, _state, _asset, data, size); +} + +FrameInfo +MonoPictureAssetWriter::write (uint8_t* data, int size) +{ + assert (!_finalized); + + if (!_started) { + start (data, size); + } + + if (ASDCP_FAILURE (_state->j2k_parser.OpenReadFrame (data, size, _state->frame_buffer))) { + boost::throw_exception (MiscError ("could not parse J2K frame")); + } + + uint64_t const before_offset = _state->mxf_writer.Tell (); + + string hash; + if (ASDCP_FAILURE (_state->mxf_writer.WriteFrame (_state->frame_buffer, _state->encryption_context, 0, &hash))) { + boost::throw_exception (MXFFileError ("error in writing video MXF", _asset->path().string())); + } + + ++_frames_written; + return FrameInfo (before_offset, _state->mxf_writer.Tell() - before_offset, hash); +} + +void +MonoPictureAssetWriter::fake_write (int size) +{ + assert (_started); + assert (!_finalized); + + if (ASDCP_FAILURE (_state->mxf_writer.FakeWriteFrame (size))) { + boost::throw_exception (MXFFileError ("error in writing video MXF", _asset->path().string())); + } + + ++_frames_written; +} + +void +MonoPictureAssetWriter::finalize () +{ + assert (!_finalized); + + if (ASDCP_FAILURE (_state->mxf_writer.Finalize())) { + boost::throw_exception (MXFFileError ("error in finalizing video MXF", _asset->path().string())); + } + + _finalized = true; + _asset->set_intrinsic_duration (_frames_written); + _asset->set_duration (_frames_written); +} + |
