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/*
Copyright (C) 2012 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.
*/
#ifndef LIBDCP_SOUND_ASSET_H
#define LIBDCP_SOUND_ASSET_H
/** @file src/sound_asset.h
* @brief An asset made up of PCM audio data files
*/
#include "mxf_asset.h"
#include "types.h"
#include "metadata.h"
namespace libdcp
{
class SoundFrame;
class SoundAsset;
class SoundAssetWriter
{
public:
void write (float const * const *, int);
void finalize ();
private:
friend class SoundAsset;
SoundAssetWriter (SoundAsset *);
/* no copy construction */
SoundAssetWriter (SoundAssetWriter const &);
SoundAssetWriter& operator= (SoundAssetWriter const &);
void write_current_frame ();
/* do this with an opaque pointer so we don't have to include
ASDCP headers
*/
struct ASDCPState;
boost::shared_ptr<ASDCPState> _state;
SoundAsset* _asset;
bool _finalized;
int _frames_written;
int _frame_buffer_offset;
};
/** @brief An asset made up of WAV files */
class SoundAsset : public MXFAsset
{
public:
SoundAsset (boost::filesystem::path directory, boost::filesystem::path mxf_name);
void read ();
/** The following parameters must be set up (if required) before calling this:
* Interop mode (set_interop)
* Edit rate (set_edit_rate)
* MXF Metadata (set_metadata)
* Channels (set_channels)
* Intrinsic duration (set_intrinsic_duration)
*/
void create (std::vector<boost::filesystem::path> const & files);
/** The following parameters must be set up (if required) before calling this:
* Interop mode (set_interop)
* Edit rate (set_edit_rate)
* MXF Metadata (set_metadata)
* Channels (set_channels)
* Intrinsic duration (set_intrinsic_duration)
*/
void create (boost::function<boost::filesystem::path (Channel)> get_path);
boost::shared_ptr<SoundAssetWriter> start_write ();
bool equals (boost::shared_ptr<const Asset> other, EqualityOptions opt, boost::function<void (NoteType, std::string)> note) const;
boost::shared_ptr<const SoundFrame> get_frame (int n) const;
void set_channels (int c) {
_channels = c;
}
int channels () const {
return _channels;
}
void set_sampling_rate (int s) {
_sampling_rate = s;
}
int sampling_rate () const {
return _sampling_rate;
}
protected:
std::string asdcp_kind () const {
return "Sound";
}
private:
std::string key_type () const;
void construct (boost::function<boost::filesystem::path (Channel)> get_path);
boost::filesystem::path path_from_channel (Channel channel, std::vector<boost::filesystem::path> const & files);
std::string cpl_node_name () const;
/** Number of channels in the asset */
int _channels;
int _sampling_rate;
};
}
#endif
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