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/*
Copyright (C) 2012-2014 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.
*/
/** @file src/mono_picture_asset_writer.cc
* @brief MonoPictureAssetWriter class
*/
#include "AS_DCP.h"
#include "KM_fileio.h"
#include "mono_picture_asset_writer.h"
#include "exceptions.h"
#include "picture_asset.h"
#include "dcp_assert.h"
#include "picture_asset_writer_common.cc"
using std::istream;
using std::ostream;
using std::string;
using boost::shared_ptr;
using namespace dcp;
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, boost::filesystem::path file, Standard standard, bool overwrite)
: PictureAssetWriter (asset, file, standard, overwrite)
, _state (new MonoPictureAssetWriter::ASDCPState)
{
}
void
MonoPictureAssetWriter::start (uint8_t* data, int size)
{
dcp::start (this, _state, _standard, _picture_asset, data, size);
_picture_asset->set_frame_rate (_picture_asset->edit_rate());
}
FrameInfo
MonoPictureAssetWriter::write (uint8_t* data, int size)
{
DCP_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;
ASDCP::Result_t const r = _state->mxf_writer.WriteFrame (_state->frame_buffer, _encryption_context, 0, &hash);
if (ASDCP_FAILURE (r)) {
boost::throw_exception (MXFFileError ("error in writing video MXF", _file.string(), r));
}
++_frames_written;
return FrameInfo (before_offset, _state->mxf_writer.Tell() - before_offset, hash);
}
void
MonoPictureAssetWriter::fake_write (int size)
{
DCP_ASSERT (_started);
DCP_ASSERT (!_finalized);
Kumu::Result_t r = _state->mxf_writer.FakeWriteFrame (size);
if (ASDCP_FAILURE (r)) {
boost::throw_exception (MXFFileError ("error in writing video MXF", _file.string(), r));
}
++_frames_written;
}
bool
MonoPictureAssetWriter::finalize ()
{
if (_started) {
Kumu::Result_t r = _state->mxf_writer.Finalize();
if (ASDCP_FAILURE (r)) {
boost::throw_exception (MXFFileError ("error in finalizing video MXF", _file.string(), r));
}
}
_picture_asset->_intrinsic_duration = _frames_written;
return PictureAssetWriter::finalize ();
}
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