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#ifndef __AUNITBUFFER_H__
#define __AUNITBUFFER_H__
#include <deque>
#include "mjpeg_logging.h"
#include "aunit.hpp"
class AUStream
{
public:
AUStream() {}
~AUStream()
{
for( std::deque<AUnit *>::iterator i = buf.begin(); i != buf.end(); ++i )
delete *i;
}
void Append( AUnit &rec )
{
if( buf.size() >= BUF_SIZE_SANITY )
mjpeg_error_exit1( "INTERNAL ERROR: AU buffer overflow" );
buf.push_back( new AUnit(rec) );
}
inline AUnit *Next( )
{
if( buf.size()==0 )
{
return 0;
}
else
{
AUnit *res = buf.front();
buf.pop_front();
return res;
}
}
inline void DropLast()
{
if( buf.empty() )
mjpeg_error_exit1( "INTERNAL ERROR: droplast empty AU buffer" );
buf.pop_back();
}
inline AUnit *Lookahead( unsigned int n)
{
return buf.size() <= n ? 0 : buf[n];
}
inline unsigned int MaxAULookahead() const { return buf.size(); }
private:
static const unsigned int BUF_SIZE_SANITY = 1000;
std::deque<AUnit *> buf;
};
#endif // __AUSTREAM_H__
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