Merge commit 'cb6f8245aed2c26fe95c30cd68c45983277a945a'

* commit 'cb6f8245aed2c26fe95c30cd68c45983277a945a':
  cmdutils: Allow calling filter_codec_opts without a set encoder
  pnm: Use av_pix_fmt_desc_get instead of accessing the array directly

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

diff --cc cmdutils.c
Simple merge