[FFmpeg-user] Alter YUV values of AVFrames

killkenny64 kennethjjgibson at gmail.com
Wed Feb 1 23:37:28 CET 2012

Mike Scheutzow-3 wrote
> You must treat the AVFrame as read-only. AVFrame->data often points to 
> the actual reference frame memory used internally by the decoder.
> You must make a deep copy of AVFrame->data before modifying it, and pass 
> that to the next step.

Thanks for the help, I can see now how problems could arise by changing the

Is there any chance you could give me a hint or two or point me toward some
help on making a deep copy of the AVFrame->data? I'm not a big C person so
I'm swimming in the deep end here.

Thanks =)

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