How to find the frame type(i frame,p frame, b frame)?

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i am working in opencv 2.4.7 , is there any function to determine whether the captured frame is I frame, P frame , B frame?

if not which libs i must use to identify the frames

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kbshimmyo On

Caveat - I don't use opencv.

There doesn't seem to be a well-documented library function for it, but would either of these at least suggest a route?

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