2 Copyright (C) 2014 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 #include <dcp/mono_picture_mxf.h>
24 #include <dcp/stereo_picture_mxf.h>
25 #include <dcp/reel_picture_asset.h>
26 #include <dcp/mono_picture_frame.h>
27 #include <dcp/stereo_picture_frame.h>
28 #include "dcp_decoder.h"
29 #include "dcp_content.h"
30 #include "j2k_image_proxy.h"
35 using boost::shared_ptr;
36 using boost::dynamic_pointer_cast;
38 DCPDecoder::DCPDecoder (shared_ptr<const DCPContent> c, shared_ptr<Log> log)
45 dcp::DCP dcp (c->directory ());
47 assert (dcp.cpls().size() == 1);
48 _reels = dcp.cpls().front()->reels ();
49 _reel = _reels.begin ();
55 if (_reel == _reels.end ()) {
59 float const vfr = _dcp_content->video_frame_rate ();
61 if ((*_reel)->main_picture ()) {
62 shared_ptr<dcp::PictureMXF> mxf = (*_reel)->main_picture()->mxf ();
63 shared_ptr<dcp::MonoPictureMXF> mono = dynamic_pointer_cast<dcp::MonoPictureMXF> (mxf);
64 shared_ptr<dcp::StereoPictureMXF> stereo = dynamic_pointer_cast<dcp::StereoPictureMXF> (mxf);
65 int64_t const entry_point = (*_reel)->main_picture()->entry_point ();
66 int64_t const frame = _next.frames (vfr);
68 video (shared_ptr<ImageProxy> (new J2KImageProxy (mono->get_frame (entry_point + frame), mxf->size(), _log)), frame);
71 shared_ptr<ImageProxy> (new J2KImageProxy (stereo->get_frame (entry_point + frame), mxf->size(), dcp::EYE_LEFT, _log)),
76 shared_ptr<ImageProxy> (new J2KImageProxy (stereo->get_frame (entry_point + frame), mxf->size(), dcp::EYE_RIGHT, _log)),
85 _next += ContentTime::from_frames (1, vfr);
87 if ((*_reel)->main_picture ()) {
88 if (_next.frames (vfr) >= (*_reel)->main_picture()->duration()) {
97 DCPDecoder::seek (ContentTime t, bool accurate)
99 VideoDecoder::seek (t, accurate);
100 AudioDecoder::seek (t, accurate);
101 SubtitleDecoder::seek (t, accurate);
103 _reel = _reels.begin ();
104 while (_reel != _reels.end() && t >= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->video_frame_rate ())) {
105 t -= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->video_frame_rate ());
113 list<ContentTimePeriod>
114 DCPDecoder::subtitles_during (ContentTimePeriod, bool starting) const
116 return list<ContentTimePeriod> ();