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-rw-r--r--DOCS/tech/nut.txt6
1 files changed, 6 insertions, 0 deletions
diff --git a/DOCS/tech/nut.txt b/DOCS/tech/nut.txt
index c980c2912f..7bd98759b1 100644
--- a/DOCS/tech/nut.txt
+++ b/DOCS/tech/nut.txt
@@ -575,6 +575,12 @@ codec_specific_data (vb)
to generate any specific decoded samples
the encoder name and version, shall be considered essential as it is very
usefull to workaround possible encoder bugs
+ The global headers MUST consist of the normal
+ sequence of header packets required for codec initialization, in the
+ order defined in the codec spec. An implementation MAY strip metadata and
+ other redundant information not necessary for correct playback from the
+ global headers as long as no incorrect values are stored and as long as
+ the striped result is not less valid per codec spec as before striping
frame_code (f(8))
frame_code is an 8-bit field which exists before every frame, it can