[Libav-user] Closed GOP structure problem

Clément Champetier cnt at mikrosimage.eu
Tue Jan 6 13:32:47 CET 2015


Hi,

I checkout the ISO/IEC 13818-2 (CODING OF MOVING PICTURES AND ASSOCIATED
AUDIO, 1995) specifications, and I read this about B-frames:






* - B-picture; bidirectionally predictive-coded picture: A picture that is
coded using motion compensated prediction from past and/or future reference
fields or frames.- closed_gop is set to ‘1’ to indicate that these
B-pictures have been encoded using only backward prediction or intra
coding.This means it's possible to have B-frame which only use backward
prediction. So according to these specifications, it could be possible to
have a decoding order of a closed GOP which ended by B.Am i right?Clement*
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