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OPAtomTrackReader.h
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OPAtomTrackReader.h
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/*
* Read a single OP-Atom file representing a clip track
*
* Copyright (C) 2009, British Broadcasting Corporation
* All Rights Reserved.
*
* Author: Philip de Nier
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the British Broadcasting Corporation nor the names
* of its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __OPATOM_TRACK_READER_H__
#define __OPATOM_TRACK_READER_H__
#include <string>
#include "OPAtomContentPackage.h"
#include "RawEssenceParser.h"
#include "FrameOffsetIndexTable.h"
namespace mxfpp
{
class HeaderMetadata;
class File;
};
typedef enum
{
OP_ATOM_SUCCESS = 0,
OP_ATOM_FAIL = -1,
OP_ATOM_FILE_OPEN_READ_ERROR = -2,
OP_ATOM_NO_HEADER_PARTITION = -3,
OP_ATOM_NOT_OP_ATOM = -4,
OP_ATOM_HEADER_ERROR = -5,
OP_ATOM_NO_FILE_PACKAGE = -6,
OP_ATOM_ESSENCE_DATA_NOT_FOUND = -7
} OPAtomOpenResult;
class OPAtomTrackReader
{
public:
static OPAtomOpenResult Open(std::string filename, OPAtomTrackReader **track_reader);
static std::string ErrorToString(OPAtomOpenResult result);
public:
~OPAtomTrackReader();
std::string GetFilename() const { return mFilename; }
mxfpp::HeaderMetadata* GetHeaderMetadata() const { return mHeaderMetadata; }
mxfpp::DataModel* GetDataModel() const { return mDataModel; }
uint32_t GetMaterialTrackId() const { return mTrackId; }
mxfUL GetEssenceContainerLabel();
int64_t GetDuration();
int64_t DetermineDuration();
int64_t GetPosition();
bool Read(OPAtomContentPackage *content);
bool Seek(int64_t position);
bool IsEOF();
private:
OPAtomTrackReader(std::string filename, mxfpp::File *mxf_file);
private:
std::string mFilename;
uint32_t mTrackId;
int64_t mDurationInMetadata;
bool mIsPicture;
mxfpp::HeaderMetadata *mHeaderMetadata;
mxfpp::DataModel *mDataModel;
FrameOffsetIndexTableSegment *mIndexTable;
RawEssenceParser *mEssenceParser;
};
#endif