From 2f0cc8ec30e8c26fed7b2c9ac2614c9a7655fb65 Mon Sep 17 00:00:00 2001
From: David Schleef <ds@schleef.org>
Date: Sat, 26 Jul 2003 03:01:58 +0000
Subject: Moved from gst-plugins/ext/mplex/.  See that directory for older
 changelogs.

Original commit message from CVS:
Moved from gst-plugins/ext/mplex/.  See that directory for older
changelogs.
---
 gst-libs/ext/mplex/videostrm.hh | 155 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 155 insertions(+)
 create mode 100644 gst-libs/ext/mplex/videostrm.hh

(limited to 'gst-libs/ext/mplex/videostrm.hh')

diff --git a/gst-libs/ext/mplex/videostrm.hh b/gst-libs/ext/mplex/videostrm.hh
new file mode 100644
index 00000000..6eeac476
--- /dev/null
+++ b/gst-libs/ext/mplex/videostrm.hh
@@ -0,0 +1,155 @@
+
+/*
+ *  videostrm.hh:  Video stream elementary input stream
+ *
+ *  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.
+ */
+
+#ifndef __VIDEOSTRM_H__
+#define __VIDEOSTRM_H__
+
+#include "inputstrm.hh"
+
+class VideoStream:public ElementaryStream
+{
+public:
+  VideoStream (IBitStream & ibs, OutputStream & into);
+  void Init (const int stream_num);
+  static bool Probe (IBitStream & bs);
+
+  void Close ();
+
+  inline int AUType ()
+  {
+    return au->type;
+  }
+
+  inline bool EndSeq ()
+  {
+    return au->end_seq;
+  }
+
+  inline int NextAUType ()
+  {
+    VAunit *p_au = Lookahead ();
+
+    if (p_au != NULL)
+      return p_au->type;
+    else
+      return NOFRAME;
+  }
+
+  inline bool SeqHdrNext ()
+  {
+    VAunit *p_au = Lookahead ();
+
+    return p_au != NULL && p_au->seq_header;
+  }
+
+  virtual unsigned int NominalBitRate ()
+  {
+    return bit_rate * 50;
+  }
+
+  virtual void OutputGOPControlSector ();
+  bool RunOutComplete ();
+  virtual bool MuxPossible (clockticks currentSCR);
+  void SetMaxStdBufferDelay (unsigned int demux_rate);
+  void OutputSector ();
+
+protected:
+  void OutputSeqhdrInfo ();
+  virtual bool AUBufferNeedsRefill ();
+  virtual void FillAUbuffer (unsigned int frames_to_buffer);
+  virtual void InitAUbuffer ();
+  virtual void NextDTSPTS (clockticks & DTS, clockticks & PTS);
+  void ScanFirstSeqHeader ();
+  uint8_t NewAUTimestamps (int AUtype);
+  bool NewAUBuffers (int AUtype);
+
+public:
+  unsigned int num_sequence;
+  unsigned int num_seq_end;
+  unsigned int num_pictures;
+  unsigned int num_groups;
+  unsigned int num_frames[4];
+  unsigned int avg_frames[4];
+
+  unsigned int horizontal_size;
+  unsigned int vertical_size;
+  unsigned int aspect_ratio;
+  unsigned int picture_rate;
+  unsigned int bit_rate;
+  unsigned int comp_bit_rate;
+  unsigned int peak_bit_rate;
+  unsigned int vbv_buffer_size;
+  unsigned int CSPF;
+  double secs_per_frame;
+
+
+  bool dtspts_for_all_au;
+  bool gop_control_packet;
+
+protected:
+
+  /* State variables for scanning source bit-stream */
+  VAunit access_unit;
+  unsigned int fields_presented;
+  unsigned int group_order;
+  unsigned int group_start_pic;
+  unsigned int group_start_field;
+  int temporal_reference;
+  unsigned int pict_rate;
+  unsigned int pict_struct;
+  int pulldown_32;
+  int repeat_first_field;
+  int prev_temp_ref;
+  double frame_rate;
+  unsigned int max_bits_persec;
+  int AU_pict_data;
+  int AU_hdr;
+  clockticks max_PTS;
+  clockticks max_STD_buffer_delay;
+
+  int opt_mpeg;
+  int opt_multifile_segment;
+};
+
+//
+// DVD's generate control sectors for each GOP...
+//
+
+class DVDVideoStream:public VideoStream
+{
+public:
+  DVDVideoStream (IBitStream & ibs, OutputStream & into):VideoStream (ibs, into)
+  {
+    gop_control_packet = true;
+  }
+  void OutputGOPControlSector ();
+};
+
+#endif // __INPUTSTRM_H__
+
+
+/* 
+ * Local variables:
+ *  c-file-style: "stroustrup"
+ *  tab-width: 4
+ *  indent-tabs-mode: nil
+ * End:
+ */
-- 
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