#ifndef BITRATE_ESTIMATER_H
#define BITRATE_ESTIMATER_H

#include <unistd.h>
#include <stdlib.h>
#include <pthread.h>

#define BITRATE_ARRAY_SIZE          500
#define BITRATE_ESTIMATE_INTERVAL   5
#define PTS_DISCONTINUE_INTERVAL    1000000

typedef struct BR_ESTIMATER_NODE
{
	int64_t nFramePts;
	int     nFrameLen;
}BitrateEstimateNode;

typedef struct BitrateEstimater
{
    pthread_mutex_t     mutex;
	int                 nBitrate;
	int                 nWritePos;
	int                 nValidNodeCnt;
	int                 nWritePosLastEstimate;
	BitrateEstimateNode nodes[BITRATE_ARRAY_SIZE];
}BitrateEstimater;


BitrateEstimater* BitrateEstimaterCreate(void);

void BitrateEstimaterDestroy(BitrateEstimater* be);

void BitrateEstimaterUpdate(BitrateEstimater* be, int64_t nPts, int nFrameLen);

int BitrateEstimaterGetBitrate(BitrateEstimater* be);

void BitrateEstimaterReset(BitrateEstimater* be);


#endif