[MPlayer-DOCS] CVS: main/DOCS/tech mpcf.txt,1.38,1.39

[Michael Niedermayer CVS]

CVS change done by Michael Niedermayer CVS

Update of /cvsroot/mplayer/main/DOCS/tech
In directory mail:/var2/tmp/cvs-serv10343

Modified Files:
	mpcf.txt 
Log Message:
restrictions to ensure that O(log n) seeking and error recovery is possible


Index: mpcf.txt
===================================================================
RCS file: /cvsroot/mplayer/main/DOCS/tech/mpcf.txt,v
retrieving revision 1.38
retrieving revision 1.39
diff -u -r1.38 -r1.39
--- mpcf.txt	31 Mar 2004 01:44:57 -0000	1.38
+++ mpcf.txt	3 Apr 2004 13:23:44 -0000	1.39
@@ -342,7 +342,15 @@
 	2       is indicated by (flags[frame_code]&1)==1 && startcode
 	there SHOULD not be more then 0.5 seconds or 16kbyte of type 0 frames
 	wihout a intervening frame of different frame_type
-                
+	* type 2 frames MUST be decodeable independantly of any other frames
+	this means they MUST be keyframes and they MUST use a full timestamp
+	* type 1 frames MUST not depend(1) upon any other frames, this means,
+	they MUST use a full timestamp
+	* type 0 frames MUST not depend(1) upon frames prior to the last type 
+	1/2 frames
+	depend(1) means dependancy on the container level (NUT) not dependancy
+	on the codec level
+
 stream_id_plus1[frame_code]
 	must be <250
 	if its 0 then the stream_id is coded in the frame
@@ -378,6 +386,7 @@
 		frame                    lsb_timestamp=4 -> timestamp=260
 		frame                    lsb_timestamp=2 -> timestamp=258
 		frame                    lsb_timestamp=3 -> timestamp=259
+	all timestamps of keyframes of a single stream MUST be monotone
 
 width/height
 	MUST be set to the coded width/height