header_checksum

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@17793 b3059339-0415-0410-9bf9-f77b7e298cf2
2006-03-10 02:49:29 +00:00 · 2006-03-10 02:49:29 +00:00 · 2c222ee63b
parent d81cb40c88
commit 2c222ee63b
1 changed files with 5 additions and 0 deletions
--- a/DOCS/tech/mpcf.txt
+++ b/DOCS/tech/mpcf.txt
@ -310,6 +310,8 @@ note, demuxers MUST be able to deal with new and unknown headers
 packet_header
        startcode                               f(64)
        forward_ptr                             v
+        if(forward_ptr > 4096)
+            header_checksum                     u(32)

 packet_footer
        reserved_bytes
@ -589,6 +591,9 @@ checksum
    for frame headers the checksum contains the framecode byte and all
    following bytes upto the checksum itself

+header_checksum
+    checksum over the startcode and forward pointer
+
 Syncpoint tags:
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