* qatar/master:
  ppc: remove redundant setting of Altivec IDCT
  mpegvideo: initialise DSPContext in ff_dct_common_init()
  cosmetics: reindent
  eac3enc: support writing of basic mixing and info metadata
  dnxhdenc: fix declarations in for loops
  dsputil: remove stale bink prototypes and comments
  dsputil: move a bink-only function to binkdsp
  dsputil: remove some unused functions
  bink: make IDCT take 32-bit input

Merged-by: Michael Niedermayer <michaelni@gmx.at>