IMetaData.h

/*******************************************************************************
 * Copyright (c) 2024, 2026, Olivier Ayache.  All rights reserved.
 *
 * This file is part of AVPKit.
 *
 * AVPKit is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * AVPKit 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with AVPKit.  If not, see <http://www.gnu.org/licenses/>.
 *******************************************************************************/
 
#ifndef IMETADATA_H_
#define IMETADATA_H_
 
#include <com/avpkit/core/AVPKit.h>
#include <com/avpkit/ferry/RefCounted.h>
 
namespace com { namespace avpkit { namespace core
{
 
class VS_API_AVPKIT IMetaData : public com::avpkit::ferry::RefCounted
{
public:
  typedef enum {
    METADATA_NONE=0,
    METADATA_MATCH_CASE=1,
    METADATA_DONT_OVERWRITE=16,
    META_DATA_APPEND=32,
  } Flags;
 
  virtual int32_t getNumKeys()=0;
  
  virtual const char* getKey(int32_t position)=0;
 
  virtual const char *getValue(const char* key, Flags flag)=0;
  
  virtual int32_t setValue(const char* key, const char* value)=0;
  
  static IMetaData* make();
 
  virtual int32_t setValue(const char* key, const char* value, Flags flag)=0;
 
protected:
  IMetaData();
  virtual
  ~IMetaData();
};
 
}}}
 
#endif /* IMETADATA_H_ */