Cosmetics
      Set svn:keywords

Someone should really review this.
This does not affect the trivial resampler; I have not checked the others.

This screws up any audio codec that does not support transrating.
There is something fishy here.

(rather than as big packets as possible)

tta & ffmpeg: remove unneeded "meta reader" loading
tta didn't use anyway, and ffmpeg uses information from libavcodec