On Sat, Oct 26, 2019 at 02:05:27PM +0300, Andrey Semashev wrote: > The decoder never marks pictures as I-frames, which results in no > keyframe indication and incorrect frame skipping, in cases when > keyframes should be decoded. > > This commit works around this decoder limitation and marks I-frames > and keyframes based on "freeze picture release" bit in h261 picture > header. This reflects h261enc behavior. > --- > libavcodec/h261.h | 1 + > libavcodec/h261dec.c | 27 ++++++++++++++++++--------- > 2 files changed, 19 insertions(+), 9 deletions(-)
If the goal is correctly recognizing I frames then checking if all blocks are intra should be the most reliable that wont work for skiping though as it requires decoding [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB The educated differ from the uneducated as much as the living from the dead. -- Aristotle
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