First stab at porting mplex

Original commit message from CVS:
First stab at porting mplex

1 files changed, 107 insertions, 0 deletions

diff --git a/ext/mplex/stillsstream.hh b/ext/mplex/stillsstream.hh
new file mode 100644
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+++ b/ext/mplex/stillsstream.hh
@@ -0,0 +1,107 @@
+
+/*
+ *  stillsstreams.c: Class for elemenary still video streams
+ *                   Most functionality is inherited from VideoStream
+ *
+ *  Copyright (C) 2001 Andrew Stevens <andrew.stevens@philips.com>
+ *
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of version 2 of the GNU General Public License
+ *  as published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+
+#include "videostrm.hh"
+
+class FrameIntervals
+{
+public:
+  virtual int NextFrameInterval () = 0;
+};
+
+//
+// Class of sequence of frame intervals.
+//
+
+class ConstantFrameIntervals:public FrameIntervals
+{
+public:
+  ConstantFrameIntervals (int _frame_interval):frame_interval (_frame_interval)
+  {
+  }
+  int NextFrameInterval ()
+  {
+    return frame_interval;
+  };
+private:
+  int frame_interval;
+};
+
+
+//
+// Class for video stills sequence for (S)VCD non-mixed stills segment 
+// item
+//
+
+class StillsStream:public VideoStream
+{
+public:
+  StillsStream (IBitStream & ibs,
+		OutputStream & into, FrameIntervals * frame_ints):VideoStream (ibs, into),
+    current_PTS (0LL), current_DTS (0LL), intervals (frame_ints)
+  {
+  }
+  void Init ();
+
+private:
+  virtual void NextDTSPTS (clockticks & DTS, clockticks & PTS);
+  clockticks current_PTS;
+  clockticks current_DTS;
+  FrameIntervals *intervals;
+
+  int opt_mux_format;
+};
+
+//
+// Class for video stills sequence for VCD mixed stills Segment item.
+// 
+
+class VCDStillsStream:public StillsStream
+{
+public:
+  VCDStillsStream (IBitStream & ibs,
+		   OutputStream & into, FrameIntervals * frame_ints):StillsStream (ibs, into,
+										   frame_ints),
+    sibling (0), stream_mismatch_warned (false)
+  {
+  }
+
+  void SetSibling (VCDStillsStream *);
+  virtual bool MuxPossible ();
+
+private:
+  bool LastSectorLastAU ();
+  VCDStillsStream *sibling;
+  bool stream_mismatch_warned;
+};
+
+
+
+
+/* 
+ * Local variables:
+ *  c-file-style: "stroustrup"
+ *  tab-width: 4
+ *  indent-tabs-mode: nil
+ * End:
+ */