2 Copyright (C) 2012 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.
21 #include "KM_fileio.h"
22 #include "picture_frame.h"
23 #include "exceptions.h"
26 using namespace libdcp;
28 PictureFrame::PictureFrame (string mxf_path, int n)
30 ASDCP::JP2K::MXFReader reader;
31 if (ASDCP_FAILURE (reader.OpenRead (mxf_path.c_str()))) {
32 throw FileError ("could not open MXF file for reading", mxf_path);
35 /* XXX: unfortunate guesswork on this buffer size */
36 _buffer = new ASDCP::JP2K::FrameBuffer (4 * Kumu::Megabyte);
38 if (ASDCP_FAILURE (reader.ReadFrame (n, *_buffer))) {
39 throw DCPReadError ("could not read video frame");
43 PictureFrame::~PictureFrame ()
49 PictureFrame::data () const
51 return _buffer->RoData();
55 PictureFrame::size () const
57 return _buffer->Size ();