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diff --git a/src/multiplexer.cc b/src/multiplexer.cc
new file mode 100644
index 0000000..3d764dd
--- /dev/null
+++ b/src/multiplexer.cc
@@ -0,0 +1,315 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            multiplexer.cc
+ *
+ *  Wed Aug 31 13:05:18 CEST 2005
+ *  Copyright  2005 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of MIaV.
+ *
+ *  MIaV is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  MIaV 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 MIaV; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+
+#include "config.h"
+#include "multiplexer.h"
+
+#include <netinet/in.h>
+#include <math.h>
+
+#define SIZEOF(x) (sizeof(x)-1)
+
+// Audio index lists
+/*
+static unsigned int frequency_index[4] = {44100, 48000, 32000, 0};
+//static unsigned int slots [4] = {12, 144, 0, 0};
+//static unsigned int slot_index [4] = {144, 144, 144, 0};
+//static unsigned int sample_index [4] = {384, 1152, 0, 0};
+static unsigned int bitrate_index [4][16] = {
+  {0, 0, 0, 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,0}, // Reserved
+  {0,32,40,48, 56, 64, 80, 96,112,128,160,192,224,256,320,0}, // Layer III
+  {0,32,48,56, 64, 80, 96,112,128,160,192,224,256,320,384,0}, // Layer II
+  {0,32,64,96,128,160,192,224,256,288,320,352,384,416,448,0}  // Layer I
+};
+static char layer_index[4][12] = { "Reserved", "Layer III", "Layer II", "Layer I" };
+static char mode_index[4][32] = { "Stereo", "Joint Stereo", "Dual Channel", "Single Channel"};
+static char protection_index[2][32] = { "CRC check enabled", "CRC check disabled" };
+*/
+//static unsigned short int syncword = 0xFFF;
+
+// Video index lists
+/*
+#define FORBIDDEN -1.0
+#define RESERVED -2.0
+static double picture_rate_index[16] = {
+  FORBIDDEN, 23.976, 24.0, 25.0, 29.97, 30.0, 50.0, 59.94, 60,
+  RESERVED, RESERVED, RESERVED, RESERVED, RESERVED, RESERVED, RESERVED
+};
+*/
+
+Multiplexer::Multiplexer(File *f, Info *i, volatile bool *r,
+                         FramePriorityQueue *v_q, pthread_mutex_t *v_m, sem_t *v_s, 
+                         FramePriorityQueue *a_q, pthread_mutex_t *a_m, sem_t *a_s)
+{
+  running = r;
+  file = f;
+  info = i;
+
+  queue[TYPE_VIDEO] = v_q;
+  queue[TYPE_AUDIO] = a_q;
+
+  sem[TYPE_VIDEO] = v_s;
+  sem[TYPE_AUDIO] = a_s;
+
+  mutex[TYPE_VIDEO] = v_m;
+  mutex[TYPE_AUDIO] = a_m;
+
+  frame[TYPE_VIDEO] = NULL;
+  frame[TYPE_AUDIO] = NULL;
+
+  frame_number[TYPE_VIDEO] = 0;
+  frame_number[TYPE_AUDIO] = 0;
+
+  write_system_header = 0;
+  write_audio_packet = 0;
+
+  audio_header_read = false;
+
+  written[TYPE_VIDEO] = 0.0;
+  written[TYPE_AUDIO] = 0.0;
+}
+
+Multiplexer::~Multiplexer()
+{
+}
+
+
+int Multiplexer::read_stream(char *buf, unsigned int size, StreamType type)
+{
+  Frame *tmpframe;
+  unsigned int copied = 0;
+
+  while(copied < size && (*running) ) {
+
+    // If we read the entire frame, prepare to get a new one
+    if(frame[type] && read[type] == frame[type]->size) {
+      delete frame[type];
+      frame[type] = NULL;
+    }
+
+    // If no frame is in the buffer, get one from the queue
+    while( frame[type] == NULL && (*running) ) {
+      sem_wait(sem[type]);
+
+      // Lock output mutex
+      pthread_mutex_lock( mutex[type] );
+      tmpframe = queue[type]->top();
+      if(tmpframe && tmpframe->number == frame_number[type] ) {
+        queue[type]->pop();
+        frame[type] = tmpframe;
+        frame_number[type]++;
+        read[type] = 0;
+      }
+      pthread_mutex_unlock( mutex[type] );
+      // Unlock output mutex
+    }
+
+    // If a frame exists in the buffer copy it to the output buffer
+    // (No frame ocurres when *running is set to false)
+    if( frame[type] ) {
+      unsigned int doread = (size - copied) < (frame[type]->size - read[type]) ?
+        size - copied : (frame[type]->size - read[type]);
+      
+      //info->info("Requested: %d. Read: %d. Doread: %d. In buffer %d", size, (*read), doread, (*frame)->size);
+      
+      memcpy(buf + copied, frame[type]->data + read[type], doread);
+      read[type] += doread;
+      copied += doread;
+    }
+  }
+
+  return copied;
+}
+
+void Multiplexer::packet(StreamType type)
+{
+  char buf[1000000];
+
+  file->Write((void*)ISO11172_1::packet_start_code_prefix, SIZEOF(ISO11172_1::packet_start_code_prefix));
+  switch(type) {
+  case TYPE_VIDEO:
+    file->Write((void*)ISO11172_1::stream_id_video1, SIZEOF(ISO11172_1::stream_id_video1));
+    break;
+  case TYPE_AUDIO:
+    file->Write((void*)ISO11172_1::stream_id_audio1, SIZEOF(ISO11172_1::stream_id_audio1));
+    break;
+  }
+
+  // Write data
+  info->info("\t\t[%sPacket]", type==TYPE_AUDIO?"Audio\0":"Video\0");
+
+  unsigned short int hton_framesize = PACKET_SIZE + 1;
+  hton_framesize = htons(hton_framesize);
+  file->Write((char*)&hton_framesize, sizeof(hton_framesize));
+
+  char dims[] = "\x0F";
+  file->Write(dims, 1);
+
+  file->Write(buf, read_stream(buf, PACKET_SIZE, type));
+
+  written[type] += (double)PACKET_SIZE / (double)frame[type]->bitrate;
+}
+
+/**
+ * Create and write a packet
+ */
+void Multiplexer::packet()
+{
+  info->info("\t\tWritten[A]: %f, Written[V]: %f", written[TYPE_AUDIO], written[TYPE_VIDEO]);
+
+  // New switching mechanism
+  if(written[TYPE_AUDIO] < written[TYPE_VIDEO]) {
+    packet(TYPE_AUDIO);
+  } else {
+    packet(TYPE_VIDEO);
+  }
+
+
+  // Count this up here, we want audio packets in packet 4, 9, ... NOT 0, 3, ...
+  /*
+  write_audio_packet++;
+  if(write_audio_packet % AUDIO_PACKET_FREQUENCY == 0) {
+    packet(TYPE_AUDIO);
+  } else {
+    packet(TYPE_VIDEO);
+  }
+  */
+}
+
+/**
+ * Create and write the system header
+ */
+void Multiplexer::system_header()
+{
+  info->info("\t\t[System Header]");
+  
+  // system_header_start_code (32 bits)
+  file->Write((void*)ISO11172_1::system_header_start_code, SIZEOF(ISO11172_1::system_header_start_code));
+  
+  // header_length (16 bits)
+  char system_header_length[]     = "\x00\x0C";
+  file->Write(system_header_length, SIZEOF(system_header_length));
+  
+  // marker_bit (1 bit)   \.
+  // rate_bound (22 bits)  ) (24 bits)
+  // marker_bit (1 bit)   /
+  char rate_bound[]     = "\x80\x1B\x83";
+  file->Write(rate_bound, SIZEOF(rate_bound));
+  
+  // audio_bound (6 bits) \.
+  // fixed_flag (1 bit)    ) (8 bits)
+  // CSPS_flag (1 bit)    /
+  char audio_bound[]     = "\x06"; // One audio stream, fixed bitrate and not iso costraint compliant
+  file->Write(audio_bound, SIZEOF(audio_bound));
+
+  // system_audio_lock_flag (1 bit) \.
+  // system_video_lock_flag (1 bit)  \.
+  // marker_bit (1 bit)               ) (8 bits)
+  // video_bound (5 bits)           _/
+  char video_bound[]     = "\xE1"; // Audio and Video are locked and there are only one video stream
+  file->Write(video_bound, SIZEOF(video_bound));
+ 
+  // reserved_byte (8 bit)
+  char reserved_byte[]     = "\xFF";
+  file->Write(reserved_byte, SIZEOF(reserved_byte));
+
+  { // Audio
+    // stream_id (8 bit)
+    char stream_id[]     = "\xC0";
+    file->Write(stream_id, SIZEOF(stream_id));
+    
+    // '11' (2 bits)                   \.
+    // STD_buffer_bound_scale (1 bit)   ) (24 bits)
+    // STD_buffer_size_bound (13 bits) /
+    char reserved_byte[]     = "\xC0\x20";
+    file->Write(reserved_byte, SIZEOF(reserved_byte));
+  }
+
+  { // Video
+    // stream_id (8 bit)
+    char stream_id[]     = "\xE3";
+    file->Write(stream_id, SIZEOF(stream_id));
+    
+    // '11' (2 bits)                   \.
+    // STD_buffer_bound_scale (1 bit)   ) (24 bits)
+    // STD_buffer_size_bound (13 bits) /
+    char reserved_byte[]     = "\xE0\x2E";
+    file->Write(reserved_byte, SIZEOF(reserved_byte));
+  }
+}
+
+/**
+ * Create and write a pack
+ */
+void Multiplexer::pack()
+{
+  info->info("\t[Pack");
+
+  file->Write((void*)ISO11172_1::pack_start_code, SIZEOF(ISO11172_1::pack_start_code));
+  
+  // Stuff! FIXME: Change this
+  char stuff[]     = "\x21\x00\x01\x1E\x81\x80\x1B\x83";
+  file->Write(stuff, SIZEOF(stuff));
+
+  if(write_system_header % SYSTEM_HEADER_FREQUENCY == 0) system_header();
+  // Count this up here, we want a system header in pack 0, 5, ... NOT 4, 9, ...
+  write_system_header++;
+
+  for(int cnt = 0; cnt < NUMBER_OF_PACKETS_IN_A_PACK; cnt++) packet();
+  info->info("\t]");
+}
+
+/**
+ *
+ */
+void Multiplexer::iso11172_stream()
+{
+  info->info("[iso11172_stream");
+  while(*running) {
+    pack();
+  }
+  info->info("]");
+  info->info("[iso11172_end_code]");
+  file->Write((void*)ISO11172_1::end_code, SIZEOF(ISO11172_1::end_code));
+}
+
+//#define BYPASS TYPE_VIDEO
+//#define BYPASS TYPE_AUDIO
+void Multiplexer::multiplex()
+{
+#ifdef BYPASS
+
+  char buf[1024];
+  while(*running) file->Write(buf, read_stream(buf, sizeof(buf), BYPASS));
+  return;
+
+#else/*BYPASS*/
+
+  iso11172_stream();
+
+#endif/*BYPASS*/
+}
diff --git a/src/multiplexer.h b/src/multiplexer.h
new file mode 100644
index 0000000..25c89e0
--- /dev/null
+++ b/src/multiplexer.h
@@ -0,0 +1,118 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            multiplexer.h
+ *
+ *  Wed Aug 31 13:05:18 CEST 2005
+ *  Copyright  2005 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of MIaV.
+ *
+ *  MIaV is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  MIaV 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 MIaV; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#include "config.h"
+#ifndef __MIAV_MULTIPLEXER_H__
+#define __MIAV_MULTIPLEXER_H__
+
+#include "iso11172-1.h"
+#include "iso11172-2.h"
+#include "iso11172-3.h"
+
+#include "file.h"
+#include "info.h"
+#include "frame.h"
+
+/**
+ * Multiplexer configuration
+ */
+// How many packets should we put in one pack
+#define NUMBER_OF_PACKETS_IN_A_PACK 3
+
+// How many packets bewteen audio packs
+#define AUDIO_PACKET_FREQUENCY 10
+
+// How many packs bewteen system headers
+#define SYSTEM_HEADER_FREQUENCY 5
+
+// Size of video or audio data pr. packet
+#define PACKET_SIZE 2048
+
+/**
+ * Other stuff
+ */
+// The number of streamtypes.
+#define NUM_TYPES 2
+
+// Enum of the streamtypes.
+typedef enum {
+  TYPE_VIDEO,
+  TYPE_AUDIO
+} StreamType;
+
+
+class Multiplexer {
+public:
+  Multiplexer(File *file, Info *info, volatile bool *running,
+              FramePriorityQueue *v_q, pthread_mutex_t *v_m, sem_t *v_s, 
+              FramePriorityQueue *a_q, pthread_mutex_t *a_m, sem_t *a_s);
+  ~Multiplexer();
+
+  void multiplex();
+
+private:
+  double written[NUM_TYPES];
+
+  void iso11172_stream();
+  void pack();
+  void system_header();
+  void packet();
+  void packet(StreamType type);
+  /*
+  void audio_packet();
+  void video_packet();
+
+  void audio_data(ISO11172_3::header *header);
+  void audio_data_layer_I(ISO11172_3::header *header);
+  void audio_data_layer_II(ISO11172_3::header *header);
+  void audio_data_layer_III(ISO11172_3::header *header);
+
+  void video_data(ISO11172_2::sequence_header_1 *header1,
+                  ISO11172_2::sequence_header_2 *header2);
+  */
+  // Frequency variables
+  unsigned int write_system_header;
+  unsigned int write_audio_packet;
+
+  int read_stream(char *buf, unsigned int size, StreamType type);
+
+  FramePriorityQueue *queue[NUM_TYPES];
+  pthread_mutex_t *mutex[NUM_TYPES];
+  sem_t *sem[NUM_TYPES];
+
+  Frame *frame[NUM_TYPES];
+  unsigned int frame_number[NUM_TYPES];
+  unsigned int read[NUM_TYPES];
+
+  File *file;
+  Info *info;
+  volatile bool *running;
+
+  // Audio Header
+ bool audio_header_read;
+};
+
+#endif/*__MIAV_MULTIPLEXER_H__*/