[Libav-user] Speeding video decoding

[Gonzalo Garramuno]

I have a viewer which allows the user to scrub (play back and forwards) 
the video fed into it,  Currently to do this, I cache a set of frames in 
memory using my own code (say 60 frames).
However, I find that I still need to call avcodec_decode_video2 so that 
frames can be decoded properly if the user steps outside of the 60 
frames I cached.
My problem is that calling avcodec_decode_video2 so many times (while 
still in the cache range) makes the scrubbing not work smoothly.
I was wondering what, if anything, am I doing wrong or what other trick 
can be used to sped up the scrubbing?

Any help is appreciated.

-- 
Gonzalo Garramuño