X-Git-Url: https://git.cweiske.de/enigma2.git/blobdiff_plain/ca329d3e86a98aacb0597d8581f5354cc99542e4..97d46aee1158e549c110d66a0e1c4185c3cbbdf3:/lib/dvb/tstools.h

diff --git a/lib/dvb/tstools.h b/lib/dvb/tstools.h
index 55f86fbe..ed8b9241 100644
--- a/lib/dvb/tstools.h
+++ b/lib/dvb/tstools.h
@@ -3,6 +3,8 @@
 
 #include <sys/types.h>
 #include <lib/dvb/pvrparse.h>
+#include <lib/base/rawfile.h>
+#include <lib/base/elock.h>
 
 /*
  * Note: we're interested in PTS values, not STC values.
@@ -17,7 +19,7 @@ public:
 	eDVBTSTools();
 	~eDVBTSTools();
 
-	int openFile(const char *filename);
+	int openFile(const char *filename, int nostreaminfo = 0);
 	void closeFile();
 	
 	void setSyncPID(int pid);
@@ -25,7 +27,7 @@ public:
 	
 		/* get first PTS *after* the given offset. */
 		/* pts values are zero-based. */
-	int getPTS(off_t &offset, pts_t &pts);
+	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.
@@ -38,6 +40,11 @@ public:
 		*/
 	int fixupPTS(const off_t &offset, pts_t &pts);
 	
+		/* get (approximate) offset corresponding to PTS */
+	int getOffset(off_t &offset, pts_t &pts, int marg=0);
+	
+	int getNextAccessPoint(pts_t &ts, const pts_t &start, int direction);
+	
 	void calcBegin();
 	void calcEnd();
 	
@@ -45,16 +52,46 @@ public:
 	
 	int calcBitrate(); /* in bits/sec */
 	
+	void takeSamples();
+	int takeSample(off_t off, pts_t &p);
+	
+	int findPMT(int &pmt_pid, int &service_id);
+	
+	enum { 
+		frametypeI = 1, 
+		frametypeP = 2, 
+		frametypeB = 4, 
+		frametypeAll = frametypeI | frametypeP | frametypeB
+	};
+	/** findFrame: finds a specific frame at a given position
+	
+	findFrame will look for the specified frame type starting at the given position, moving forward
+	(when direction is >0) or backward (when direction is <0). (direction=0 is a special case and also moves
+	forward, but starts with the last frame.)
+	
+	return values are the new offset, the length of the found frame (both unaligned), and the (signed) 
+	number of frames skipped. */
+	int findFrame(off_t &offset, size_t &len, int &direction, int frame_types = frametypeI);
+	int findNextPicture(off_t &offset, size_t &len, int &distance, int frame_types = frametypeAll);
 private:
-	int m_fd, m_pid;
+	int m_pid;
 	int m_maxrange;
-	
+
+	eSingleLock m_file_lock;
+	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