--- /dev/null
+/*
+ Copyright (C) 2012-2017 Carl Hetherington <cth@carlh.net>
+
+ This file is part of libdcp.
+
+ libdcp 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.
+
+ libdcp 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 libdcp. If not, see <http://www.gnu.org/licenses/>.
+
+ In addition, as a special exception, the copyright holders give
+ permission to link the code of portions of this program with the
+ OpenSSL library under certain conditions as described in each
+ individual source file, and distribute linked combinations
+ including the two.
+
+ You must obey the GNU General Public License in all respects
+ for all of the code used other than OpenSSL. If you modify
+ file(s) with this exception, you may extend this exception to your
+ version of the file(s), but you are not obligated to do so. If you
+ do not wish to do so, delete this exception statement from your
+ version. If you delete this exception statement from all source
+ files in the program, then also delete it here.
+*/
+
+#include "sound_frame.h"
+#include <asdcp/AS_DCP.h>
+#include <iostream>
+
+using std::cout;
+using namespace dcp;
+
+SoundFrame::SoundFrame (ASDCP::PCM::MXFReader* reader, int n, boost::shared_ptr<const DecryptionContext> c)
+ : Frame (reader, n, c)
+{
+ ASDCP::PCM::AudioDescriptor desc;
+ reader->FillAudioDescriptor (desc);
+ _channels = desc.ChannelCount;
+}
+
+int32_t
+SoundFrame::get (int channel, int frame) const
+{
+ uint8_t const * d = data() + (frame * _channels * 3) + (channel * 3);
+ return d[0] | (d[1] << 8) | (d[2] << 16);
+}
+
+int
+SoundFrame::samples () const
+{
+ return size() / (_channels * 3);
+}
/*
- Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2017 Carl Hetherington <cth@carlh.net>
This file is part of libdcp.
namespace dcp {
-typedef Frame<ASDCP::PCM::MXFReader, ASDCP::PCM::FrameBuffer> SoundFrame;
+class SoundFrame : public Frame<ASDCP::PCM::MXFReader, ASDCP::PCM::FrameBuffer>
+{
+public:
+ SoundFrame (ASDCP::PCM::MXFReader* reader, int n, boost::shared_ptr<const DecryptionContext> c);
+ int samples () const;
+ int32_t get (int channel, int sample) const;
+
+private:
+ int _channels;
+};
}