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/*
Copyright (C) 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.
*/
#include <dcp/dcp.h>
#include <dcp/cpl.h>
#include <dcp/reel.h>
#include <dcp/mono_picture_mxf.h>
#include <dcp/stereo_picture_mxf.h>
#include <dcp/reel_picture_asset.h>
#include <dcp/mono_picture_frame.h>
#include <dcp/stereo_picture_frame.h>
#include "dcp_decoder.h"
#include "dcp_content.h"
#include "image_proxy.h"
#include "image.h"
using std::list;
using std::cout;
using boost::shared_ptr;
using boost::dynamic_pointer_cast;
DCPDecoder::DCPDecoder (shared_ptr<const DCPContent> c, shared_ptr<Log> log)
: VideoDecoder (c)
, AudioDecoder (c)
, SubtitleDecoder (c)
, _log (log)
, _dcp_content (c)
{
dcp::DCP dcp (c->directory ());
dcp.read ();
assert (dcp.cpls().size() == 1);
_reels = dcp.cpls().front()->reels ();
_reel = _reels.begin ();
}
bool
DCPDecoder::pass ()
{
if (_reel == _reels.end ()) {
return true;
}
float const vfr = _dcp_content->video_frame_rate ();
if ((*_reel)->main_picture ()) {
shared_ptr<dcp::PictureMXF> mxf = (*_reel)->main_picture()->mxf ();
shared_ptr<dcp::MonoPictureMXF> mono = dynamic_pointer_cast<dcp::MonoPictureMXF> (mxf);
shared_ptr<dcp::StereoPictureMXF> stereo = dynamic_pointer_cast<dcp::StereoPictureMXF> (mxf);
if (mono) {
shared_ptr<Image> image (new Image (PIX_FMT_RGB24, mxf->size(), false));
mono->get_frame (_next.frames (vfr))->rgb_frame (image->data()[0]);
shared_ptr<Image> aligned (new Image (image, true));
video (shared_ptr<ImageProxy> (new RawImageProxy (aligned, _log)), _next.frames (vfr));
} else {
shared_ptr<Image> left (new Image (PIX_FMT_RGB24, mxf->size(), false));
stereo->get_frame (_next.frames (vfr))->rgb_frame (dcp::EYE_LEFT, left->data()[0]);
shared_ptr<Image> aligned_left (new Image (left, true));
video (shared_ptr<ImageProxy> (new RawImageProxy (aligned_left, _log)), _next.frames (vfr));
shared_ptr<Image> right (new Image (PIX_FMT_RGB24, mxf->size(), false));
stereo->get_frame (_next.frames (vfr))->rgb_frame (dcp::EYE_RIGHT, right->data()[0]);
shared_ptr<Image> aligned_right (new Image (right, true));
video (shared_ptr<ImageProxy> (new RawImageProxy (aligned_right, _log)), _next.frames (vfr));
}
}
/* XXX: sound */
/* XXX: subtitle */
_next += ContentTime::from_frames (1, vfr);
if ((*_reel)->main_picture ()) {
if ((*_reel)->main_picture()->duration() >= _next.frames (vfr)) {
++_reel;
}
}
return false;
}
void
DCPDecoder::seek (ContentTime t, bool accurate)
{
VideoDecoder::seek (t, accurate);
AudioDecoder::seek (t, accurate);
SubtitleDecoder::seek (t, accurate);
_reel = _reels.begin ();
while (_reel != _reels.end() && t >= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->video_frame_rate ())) {
t -= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->video_frame_rate ());
++_reel;
}
_next = t;
}
list<ContentTimePeriod>
DCPDecoder::subtitles_during (ContentTimePeriod, bool starting) const
{
return list<ContentTimePeriod> ();
}
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