X-Git-Url: https://git.cweiske.de/enigma2.git/blobdiff_plain/d6c68fa2ec0f3c8b6248444a7414942291b571e1..09047544dbeddd0a5df972934c8863bef9e11a99:/lib/dvb/tstools.h diff --git a/lib/dvb/tstools.h b/lib/dvb/tstools.h index 95fbd9e2..13168253 100644 --- a/lib/dvb/tstools.h +++ b/lib/dvb/tstools.h @@ -2,10 +2,12 @@ #define __lib_dvb_tstools_h #include +#include +#include /* * Note: we're interested in PTS values, not STC values. - * thus we're not evaluating PES headers, not adaption fields. + * thus we're evaluating PES headers, not adaption fields. */ typedef long long pts_t; @@ -16,16 +18,31 @@ public: eDVBTSTools(); ~eDVBTSTools(); - int openFile(const char *filename); + 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. */ - int getPTS(off_t &offset, pts_t &pts); + /* pts values are zero-based. */ + int getPTS(off_t &offset, pts_t &pts, int fixed=0); - int getPosition(off_t &offset, pts_t &pts); + /* 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(); @@ -34,13 +51,28 @@ public: 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_fd, m_pid; + 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 m_samples; + int m_samples_taken; + + eMPEGStreamInformation m_streaminfo; + int m_use_streaminfo; + off_t m_last_filelength; + int m_futile; }; #endif