[FFmpeg-devel] [PATCH] libavcodec/utils: Simplify get_buffer compatibility wrapper.

[Reimar Döffinger]

On Sun, Feb 16, 2014 at 11:57:23PM +0100, wm4 wrote:
> This is probably not legal. Code can assume that it can access the
> whole referenced buffer, not just where the plane data is. Look for
> example what vf_pad.c does: it tries to use "unused" space in the
> buffer data area to extend the planes without copy. But I'm not sure if
> I read this code right.

So by my current understanding, to _actually_ be backwards compatible,
the utils.c code would have to generate one refbuffer _per line_, not
per plane.
That is obviously quite insane...