From 1496394c0f4be1a718fb189846c6350cbd9e43da Mon Sep 17 00:00:00 2001
From: Wim Taymans <wim.taymans@gmail.com>
Date: Thu, 24 Oct 2002 22:37:51 +0000
Subject: First stab at porting mplex

Original commit message from CVS:
First stab at porting mplex
---
 ext/mplex/systems.hh | 131 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 ext/mplex/systems.hh

(limited to 'ext/mplex/systems.hh')

diff --git a/ext/mplex/systems.hh b/ext/mplex/systems.hh
new file mode 100644
index 00000000..bbad92f5
--- /dev/null
+++ b/ext/mplex/systems.hh
@@ -0,0 +1,131 @@
+#ifndef __SYSTEMS_HH__
+#define __SYSTEMS_HH__
+
+#include "inputstrm.hh"
+
+#include <vector>
+
+using std::vector;
+
+/* Buffer size parameters */
+
+#define MAX_SECTOR_SIZE         16384
+#define MAX_PACK_HEADER_SIZE	255
+#define MAX_SYS_HEADER_SIZE     255
+
+
+typedef class PS_Stream _PS_Stream;
+
+typedef size_t (*WriteCallback) (_PS_Stream *str, uint8_t *data, size_t size, void *user_data);
+
+
+typedef struct sector_struc	/* Ein Sektor, kann Pack, Sys Header    */
+/* und Packet enthalten.		*/
+{
+  unsigned char buf[MAX_SECTOR_SIZE];
+  unsigned int length_of_packet_data;
+  //clockticks TS                ;
+}
+Sector_struc;
+
+typedef struct pack_struc	/* Pack Info                            */
+{
+  unsigned char buf[MAX_PACK_HEADER_SIZE];
+  int length;
+  clockticks SCR;
+}
+Pack_struc;
+
+typedef struct sys_header_struc	/* System Header Info                   */
+{
+  unsigned char buf[MAX_SYS_HEADER_SIZE];
+  int length;
+}
+Sys_header_struc;
+
+
+class PS_Stream {
+public:
+  PS_Stream (WriteCallback _callback, void *_user_data):
+    callback (_callback),
+    user_data (_user_data)
+    {
+    }
+
+  void Init (unsigned _mpeg, unsigned int _sector_sizen, off_t max_segment_size);	// 0 = No Limit
+
+  bool FileLimReached ();
+  void NextFile ();
+  unsigned int PacketPayload (MuxStream & strm,
+		 Sys_header_struc * sys_header,
+		 Pack_struc * pack_header, int buffers, int PTSstamp, int DTSstamp);
+
+  unsigned int CreateSector (Pack_struc * pack,
+		Sys_header_struc * sys_header,
+		unsigned int max_packet_data_size,
+		MuxStream & strm,
+		bool buffers, bool end_marker, clockticks PTS, clockticks DTS, uint8_t timestamps);
+  void RawWrite (uint8_t * data, unsigned int len);
+  static void BufferSectorHeader (uint8_t * buf,
+		      Pack_struc * pack, Sys_header_struc * sys_header, uint8_t * &header_end);
+  static void BufferPacketHeader (uint8_t * buf,
+		      uint8_t type,
+		      unsigned int mpeg_version,
+		      bool buffers,
+		      unsigned int buffer_size,
+		      uint8_t buffer_scale,
+		      clockticks PTS,
+		      clockticks DTS,
+		      uint8_t timestamps, uint8_t * &size_field, uint8_t * &header_end);
+
+  static inline void BufferPacketSize (uint8_t * size_field, uint8_t * packet_end)
+  {
+    unsigned int
+      packet_size =
+      packet_end -
+      size_field -
+      2;
+
+    size_field[0] = static_cast < uint8_t > (packet_size >> 8);
+    size_field[1] = static_cast < uint8_t > (packet_size & 0xff);
+
+  }
+
+  void CreatePack (Pack_struc * pack, clockticks SCR, unsigned int mux_rate);
+  void CreateSysHeader (Sys_header_struc * sys_header,
+		   unsigned int rate_bound,
+		   bool fixed,
+		   int CSPS, bool audio_lock, bool video_lock, vector < MuxStream * >&streams);
+
+  void Close ()
+  {
+  }
+
+private:
+
+  /* TODO: Replace **'s with *&'s */
+  static void BufferDtsPtsMpeg1ScrTimecode (clockticks timecode, uint8_t marker, uint8_t ** buffer);
+  static void BufferMpeg2ScrTimecode (clockticks timecode, uint8_t ** buffer);
+  void BufferPaddingPacket (int padding, uint8_t * &buffer);
+
+private:
+  unsigned int mpeg_version;
+  unsigned int sector_size;
+  int segment_num;
+
+  off_t max_segment_size;
+  uint8_t * sector_buf;
+  WriteCallback callback;
+  void	*user_data;
+  off_t written;
+};
+#endif // __SYSTEMS_HH__
+
+
+/* 
+ * Local variables:
+ *  c-file-style: "stroustrup"
+ *  tab-width: 4
+ *  indent-tabs-mode: nil
+ * End:
+ */
-- 
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