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mp3iterator.cpp

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00001 
00006 #include "mp3iterator.h"
00007 
00008 MP3Iterator::MP3Iterator(Bitstream &bs, int type = MP3Frame::normal)
00009 {
00010   m_stream = new MP3Stream(bs, type); //Also reads first frame
00011   m_frame = m_stream->First(); //Get that first frame
00012 }
00013 
00014 MP3Iterator::~MP3Iterator()
00015 {
00016   delete m_stream;
00017 }
00018 
00019 MP3Frame *MP3Iterator::operator-> () const
00020 { 
00021  return m_frame; //Redirection to current frame
00022 }
00023 
00024 MP3Iterator &MP3Iterator::operator++ () 
00025 { 
00026   m_frame = m_frame->Next(); //Move to next frame
00027   
00028   //In fastwrite mode only data from current frame are
00029   //  needed, so previous frames could be safely deleted
00030   if( m_stream->WriteMode() != MP3Frame::normal )
00031     m_stream->SeekTo(m_frame);
00032   
00033   return *this; 
00034 }

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