--- ../dev.main/DOCS/tech/mpcf.txt	2006-03-25 15:35:39.000000000 +0200
+++ DOCS/tech/mpcf.txt	2006-06-01 13:05:45.000000000 +0300
@@ -439,10 +439,7 @@
           a demuxer MUST ignore streams with reserved classes
 
 fourcc
-    identification for the codec
-    example: "H264"
-    MUST contain 2 or 4 bytes, note, this might be increased in the future
-    if needed
+    identification for the codec, must comply to fourcc.txt
 
 time_base_nom / time_base_denom = time_base
     the length of a timer tick in seconds, this MUST be equal to the 1/fps
@@ -820,6 +817,28 @@
 mpegvideo+mpegaudio in mpeg-ps/ts in nut or dvvideo + dvaudio in dv in nut
 
 
+Appendix, Fourcc Spec
+=====================
+length,string
+
+Video
+4,"h263"	H.263
+4,"mp4v"	MPEG-4 Part 2
+4,"h264"	MPEG-4 Part 10/H.264
+4,"snow"	Snow
+4,"flac"	Flac
+4,"drac"	Dirac/Schroedinger
+4,"vc1 "	VC-1
+
+Audio
+4,"vrbs"	Xiph.org Vorbis
+4,"mp2 "	MP3
+4,"mp3 "	MP2
+4,"ac3 "	AC3
+4,"aac "	AAC/MPEG-4 Part 3
+4,"eac3"	EAC3
+
+
 
 Sample code (Public Domain, & untested):
 ========================================