--- MPlayer-20538/libmpcodecs/ad_faad.c.chmap	2006-10-02 01:21:07.000000000 +0200
+++ MPlayer-20538/libmpcodecs/ad_faad.c	2006-10-30 21:57:34.000000000 +0100
@@ -152,6 +152,23 @@
     mp_msg(MSGT_DECAUDIO,MSGL_V,"FAAD: Negotiated samplerate: %ldHz  channels: %d\n", faac_samplerate, faac_channels);
     sh->channels = faac_channels;
     if (audio_output_channels <= 2) sh->channels = faac_channels > 1 ? 2 : 1;
+    
+    /* re-map channels */
+    switch (sh->channels) {
+      default:
+      case 1: /* no action needed */
+      case 2: /* no action needed */
+      case 3: /* no suitable default behavior? */
+      case 4: /* no suitable default behavior? */
+        break;
+      case 5: /* mplayer treats this like 6-channel */
+      case 6:
+        sh->chan_map = af_set_channel_map(6, "04" "10" "21" "32" "43" "55");
+        break;
+      case 7: /* not supported by mplayer? */
+        break;
+    }
+    
     sh->samplerate = faac_samplerate;
     sh->samplesize=2;
     //sh->o_bps = sh->samplesize*faac_channels*faac_samplerate;
--- MPlayer-20538/libmpcodecs/dec_audio.c.chmap	2006-10-08 16:11:51.000000000 +0200
+++ MPlayer-20538/libmpcodecs/dec_audio.c	2006-10-30 21:57:34.000000000 +0100
@@ -311,6 +311,7 @@
 
   // filter config:  
   memcpy(&afs->cfg,&af_cfg,sizeof(af_cfg_t));
+  afs->chan_map = sh_audio->chan_map;
   
   mp_msg(MSGT_DECAUDIO, MSGL_V, MSGTR_BuildingAudioFilterChain,
       afs->input.rate,afs->input.nch,af_fmt2str_short(afs->input.format),
--- MPlayer-20538/libaf/af.h.chmap	2006-06-05 19:40:44.000000000 +0200
+++ MPlayer-20538/libaf/af.h	2006-10-30 21:57:34.000000000 +0100
@@ -104,6 +104,7 @@
   af_data_t output;
   // Configuration for this stream
   af_cfg_t cfg;
+  int *chan_map;
 }af_stream_t;
 
 /*********************************************
@@ -329,6 +330,16 @@
  */
 void af_fix_parameters(af_data_t *data);
 
+/**
+ * \brief set up channel remapping
+ * \param number of output channels
+ * \param string of from-to routes
+ * \return int array of routes
+ *
+ * Makes an int array from a string of provided routes.
+ */
+int *af_set_channel_map(int channels, char *routes);
+
 /** Memory reallocation macro: if a local buffer is used (i.e. if the
    filter doesn't operate on the incoming buffer this macro must be
    called to ensure the buffer is big enough.
--- MPlayer-20538/libaf/af.c.chmap	2006-09-19 00:59:44.000000000 +0200
+++ MPlayer-20538/libaf/af.c	2006-10-30 21:57:34.000000000 +0100
@@ -359,17 +359,40 @@
 
   // Check if this is the first call
   if(!s->first){
-    // Add all filters in the list (if there are any)
-    if(!s->cfg.list){      // To make automatic format conversion work
-      if(!af_append(s,s->first,"dummy")) 
-	return -1; 
+    /* remap channels if the codec/demuxer provides a channel map */
+    if (s->chan_map) {
+      af_control_ext_t arg;
+      arg.ch = s->input.nch;
+      af_instance_t *af = NULL;
+      af=af_append(s, s->first, "channels");
+      /* set up af_channels to route */
+      if (!af || (AF_OK != af->control(af, AF_CONTROL_CHANNELS_ROUTER, &s->input.nch)))
+        return -1;
+      if (!af || (AF_OK != af->control(af, AF_CONTROL_CHANNELS_NR, &s->input.nch)))
+        return -1;
+      /* set up each route */
+      for (arg.ch = 0; arg.ch < s->input.nch; ++arg.ch) {
+        arg.arg = s->chan_map + 2*arg.ch; /* two by two... */
+        if (!af || (AF_OK != af->control(af, AF_CONTROL_CHANNELS_ROUTING, &arg)))
+        return -1;
+      }
+      if (!af || (AF_OK != af->control(af, AF_CONTROL_CHANNELS, &s->input.nch)))
+        return -1;
+      if (AF_OK != af_reinit(s,af))
+        return -1;
     }
-    else{
+    // Add all filters in the list (if there are any)
+    if (s->cfg.list) {
       while(s->cfg.list[i]){
 	if(!af_append(s,s->last,s->cfg.list[i++]))
 	  return -1;
       }
     }
+    // To make automatic format conversion work
+    if (!s->first){
+      if(!af_append(s,s->first,"dummy")) 
+	return -1; 
+    }
   }
 
   // Init filters 
@@ -709,3 +732,23 @@
 {
     data->bps = af_fmt2bits(data->format)/8;
 }
+
+int *af_set_channel_map(int channels, char *routes){
+  int *chan_map, *ptr;
+  ptr=chan_map=malloc(2 * channels * sizeof(int));
+  if (!chan_map) {
+    mp_msg(MSGT_DEMUX, MSGL_ERR, "set_channel_map: cannot malloc for %d channels\n", channels);
+    return 0;
+  }
+  while (channels-- > 0) {
+    if (*routes == '\0' || *(routes+1) == '\0') { 
+      mp_msg(MSGT_DEMUX, MSGL_ERR, "set_channel_map: not enough routes\n");
+      free(chan_map);
+      return 0;
+    }
+    /* two by two... */
+    *ptr++ = *routes++ - '0';
+    *ptr++ = *routes++ - '0';
+  }
+  return chan_map;
+}
--- MPlayer-20538/libmpdemux/stheader.h.chmap	2006-08-29 23:20:01.000000000 +0200
+++ MPlayer-20538/libmpdemux/stheader.h	2006-10-30 21:57:34.000000000 +0100
@@ -19,6 +19,7 @@
   int samplerate;
   int samplesize;
   int channels;
+  int *chan_map;
   int o_bps; // == samplerate*samplesize*channels   (uncompr. bytes/sec)
   int i_bps; // == bitrate  (compressed bytes/sec)
   // in buffers: