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/*
Copyright (C) 2012-2015 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.
*/
using boost::shared_ptr;
namespace dcp {
struct ASDCPStateBase
{
ASDCPStateBase ()
: frame_buffer (4 * Kumu::Megabyte)
{}
ASDCP::JP2K::CodestreamParser j2k_parser;
ASDCP::JP2K::FrameBuffer frame_buffer;
ASDCP::WriterInfo writer_info;
ASDCP::JP2K::PictureDescriptor picture_descriptor;
};
}
template <class P, class Q>
void dcp::start (PictureAssetWriter* writer, shared_ptr<P> state, Standard standard, Q* asset, uint8_t* data, int size)
{
asset->set_file (writer->_file);
if (ASDCP_FAILURE (state->j2k_parser.OpenReadFrame (data, size, state->frame_buffer))) {
boost::throw_exception (MiscError ("could not parse J2K frame"));
}
state->j2k_parser.FillPictureDescriptor (state->picture_descriptor);
state->picture_descriptor.EditRate = ASDCP::Rational (asset->edit_rate().numerator, asset->edit_rate().denominator);
asset->set_size (Size (state->picture_descriptor.StoredWidth, state->picture_descriptor.StoredHeight));
asset->set_screen_aspect_ratio (Fraction (state->picture_descriptor.AspectRatio.Numerator, state->picture_descriptor.AspectRatio.Denominator));
asset->fill_writer_info (&state->writer_info, asset->id(), standard);
Kumu::Result_t r = state->mxf_writer.OpenWrite (
asset->file().string().c_str(),
state->writer_info,
state->picture_descriptor,
16384,
writer->_overwrite
);
if (ASDCP_FAILURE (r)) {
boost::throw_exception (MXFFileError ("could not open MXF file for writing", asset->file().string(), r));
}
writer->_started = true;
}
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