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#ifndef __lib_dvb_tstools_h
#define __lib_dvb_tstools_h
#include <sys/types.h>
#include <lib/dvb/pvrparse.h>
#include <lib/base/rawfile.h>
/*
* Note: we're interested in PTS values, not STC values.
* thus we're evaluating PES headers, not adaption fields.
*/
typedef long long pts_t;
class eDVBTSTools
{
public:
eDVBTSTools();
~eDVBTSTools();
int openFile(const char *filename, int nostreaminfo = 0);
void closeFile();
void setSyncPID(int pid);
void setSearchRange(int maxrange);
/* get first PTS *after* the given offset. */
/* pts values are zero-based. */
int getPTS(off_t &offset, pts_t &pts, int fixed=0);
/* this fixes up PTS to end up in a [0..len) range.
discontinuities etc. are handled here.
input:
offset - approximate offset in file to resolve ambiguities
pts - video-pts (i.e. current STC of video decoder)
output:
pts - zero-based PTS value
*/
int fixupPTS(const off_t &offset, pts_t &pts);
/* get (approximate) offset corresponding to PTS */
int getOffset(off_t &offset, pts_t &pts);
int getNextAccessPoint(pts_t &ts, const pts_t &start, int direction);
void calcBegin();
void calcEnd();
int calcLen(pts_t &len);
int calcBitrate(); /* in bits/sec */
void takeSamples();
int takeSample(off_t off, pts_t &p);
int findPMT(int &pmt_pid, int &service_id);
private:
int m_pid;
int m_maxrange;
eRawFile m_file;
int m_begin_valid, m_end_valid;
pts_t m_pts_begin, m_pts_end;
off_t m_offset_begin, m_offset_end;
/* for simple linear interpolation */
std::map<pts_t, off_t> m_samples;
int m_samples_taken;
eMPEGStreamInformation m_streaminfo;
int m_use_streaminfo;
off_t m_last_filelength;
int m_futile;
};
#endif
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