[NUT-devel] r20476 - trunk/DOCS/tech/nut.txt

[michael]

Author: michael
Date: Sat Oct 28 02:11:53 2006
New Revision: 20476

Modified:
   trunk/DOCS/tech/nut.txt

Log:
clarify pts related stuff


Modified: trunk/DOCS/tech/nut.txt
==============================================================================
--- trunk/DOCS/tech/nut.txt	(original)
+++ trunk/DOCS/tech/nut.txt	Sat Oct 28 02:11:53 2006
@@ -549,6 +549,11 @@
     max_pts_distance (where pts represents this frame's pts and last_pts is
     defined as below).
 
+last_pts
+    the timestamp of the last frame with the same stream_id as the current
+    if there is no such frame between the last syncpoint and the current
+    frame then the syncpoint timestamp is used, see global_key_pts
+
 stream_id[frame_code]
     MUST be <250
 
@@ -560,6 +565,9 @@
 
 pts_delta[frame_code]
     MUST be <16384 and >-16384
+    if FLAG_CODED_PTS is set in the flags of the current frame then this
+    value MUST be ignored, if FLAG_CODED_PTS is not set then pts_delta is the
+    difference between the current pts and last_pts
 
 reserved_count[frame_code]
     MUST be <256