asfparser/AsfIndexParser.h

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#ifndef ASF_INDEX_PARSER_H_
#define ASF_INDEX_PARSER_H_

#include "AsfParserDefs.h"

class AsfSimpleIndexParser {
public:
    AsfSimpleIndexParser(void);
    ~AsfSimpleIndexParser(void);

public:
    AsfSimpleIndexInfo* getIndexInfo() const;

    // buffer must contain a complete simple index object
    int parse(uint8_t *buffer, uint32_t size);
    // seek to the closest previous or next sync packet. time stamp is in 100-nanosecond units
    int seek(uint64_t seekTime, bool nextSync, uint32_t& packetNumber, uint64_t& targetTime);
    // return maximum video packet count per object, readable when simple index object is parsed.
    // If simple index object is not parsed or is not available, 0 is returned
    uint32_t getMaximumPacketCount();

private:
    void resetIndexInfo();

private:
    enum {
        // 4 bytes of "packet number" plus 2 bytes of "packet count"
        INDEX_ENTRY_SIZE = 6,
    };
    AsfSimpleIndexInfo *mIndexInfo;
};

#endif