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-rw-r--r--DOCS/tech/mpcf.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/DOCS/tech/mpcf.txt b/DOCS/tech/mpcf.txt
index 662634f898..b31668c7f8 100644
--- 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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