hvirtual/cinelerra/wavecache.h

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#ifndef WAVECACHE_H
#define WAVECACHE_H



// Store audio waveform fragments for drawing.
#include "cachebase.h"


class WaveCacheItem : public CacheItemBase
{
public:
        WaveCacheItem();
        ~WaveCacheItem();

        int get_size();
        
        int channel;
// End sample in asset samplerate.  Starting point is CacheItemBase::position
        int64_t end;
        double high;
        double low;
};





class WaveCache : public CacheBase
{
public:
        WaveCache();
        ~WaveCache();

// Returns the first item on or after the start argument or 0 if none found.
        WaveCacheItem* get_wave(int asset_id,
                int channel,
                int64_t start,
                int64_t end);
// Put waveform segment into cache
        void put_wave(Asset *asset,
                int channel,
                int64_t start,
                int64_t end,
                double high,
                double low);
};



#endif

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