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/*
Copyright (C) 2012-2014 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.
*/
/** @file src/sound_frame.cc
* @brief SoundFrame class.
*/
#include "sound_frame.h"
#include "exceptions.h"
#include "AS_DCP.h"
#include "AS_02.h"
#include "KM_fileio.h"
using namespace std;
using namespace dcp;
SoundFrame::SoundFrame (boost::filesystem::path path, int n, ASDCP::AESDecContext* c, AssetType type, Fraction edit_rate)
/* XXX: unfortunate guesswork on this buffer size */
: _buffer (new ASDCP::PCM::FrameBuffer (1 * Kumu::Megabyte))
{
switch (type) {
case ASSET_DCP:
{
ASDCP::PCM::MXFReader reader;
Kumu::Result_t r = reader.OpenRead (path.string().c_str());
if (ASDCP_FAILURE (r)) {
boost::throw_exception (FileError ("could not open MXF file for reading", path, r));
}
if (ASDCP_FAILURE (reader.ReadFrame (n, *_buffer, c))) {
boost::throw_exception (PackageReadError ("could not read audio frame"));
}
break;
}
case ASSET_IMP:
{
AS_02::PCM::MXFReader reader;
Kumu::Result_t r = reader.OpenRead (path.string().c_str(), ASDCP::Rational (edit_rate.numerator, edit_rate.denominator));
if (ASDCP_FAILURE (r)) {
boost::throw_exception (FileError ("could not open MXF file for reading", path, r));
}
if (ASDCP_FAILURE (reader.ReadFrame (n, *_buffer, c))) {
boost::throw_exception (PackageReadError ("could not read audio frame"));
}
break;
}
}
}
SoundFrame::~SoundFrame ()
{
delete _buffer;
}
uint8_t const *
SoundFrame::data () const
{
return _buffer->RoData();
}
int
SoundFrame::size () const
{
return _buffer->Size ();
}
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