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 "sound_frame.h"
23 #include "exceptions.h"
26 using namespace libdcp;
28 SoundFrame::SoundFrame (string mxf_path, int n, ASDCP::AESDecContext* c)
30 ASDCP::PCM::MXFReader reader;
31 Kumu::Result_t r = reader.OpenRead (mxf_path.c_str());
32 if (ASDCP_FAILURE (r)) {
33 boost::throw_exception (FileError ("could not open MXF file for reading", mxf_path, r));
36 /* XXX: unfortunate guesswork on this buffer size */
37 _buffer = new ASDCP::PCM::FrameBuffer (1 * Kumu::Megabyte);
39 if (ASDCP_FAILURE (reader.ReadFrame (n, *_buffer, c))) {
40 boost::throw_exception (DCPReadError ("could not read audio frame"));
44 SoundFrame::~SoundFrame ()
50 SoundFrame::data () const
52 return _buffer->RoData();
56 SoundFrame::size () const
58 return _buffer->Size ();