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/*
Copyright (C) 2020-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic 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.
DCP-o-matic 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "atmos_content.h"
#include "atmos_decoder.h"
#include "atmos_mxf_content.h"
#include "atmos_mxf_decoder.h"
#include "dcpomatic_time.h"
#include <dcp/atmos_asset.h>
#include <dcp/atmos_asset_reader.h>
using std::make_shared;
using std::shared_ptr;
AtmosMXFDecoder::AtmosMXFDecoder (std::shared_ptr<const Film> film, std::shared_ptr<const AtmosMXFContent> content)
: Decoder (film)
, _content (content)
{
atmos = make_shared<AtmosDecoder>(this, content);
auto asset = make_shared<dcp::AtmosAsset>(_content->path(0));
_reader = asset->start_read ();
_reader->set_check_hmac (false);
_metadata = AtmosMetadata (asset);
}
bool
AtmosMXFDecoder::pass ()
{
auto const vfr = _content->active_video_frame_rate (film());
auto const frame = _next.frames_round (vfr);
if (frame >= _content->atmos->length()) {
return true;
}
atmos->emit (film(), _reader->get_frame(frame), frame, *_metadata);
_next += dcpomatic::ContentTime::from_frames (1, vfr);
return false;
}
void
AtmosMXFDecoder::seek (dcpomatic::ContentTime t, bool accurate)
{
Decoder::seek (t, accurate);
_next = t;
}
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