commit 4547c837b4124f50fb34fe60fadbf556ef668c3a
Merge: 7ea1e4a e49d213
Author: Christophe GISQUET <christophe.gisquet@gmail.com>
Date:   Tue Jan 3 21:12:29 2012 +0100

    Merge branch 'master' of git://git.libav.org/libav

commit 7ea1e4af07c4b8947570fe7dd1366761b5ed6242
Author: Justin Ruggles <justin.ruggles@gmail.com>
Date:   Wed Dec 7 11:56:57 2011 -0500

    alacdec: implement the 2-pass prediction type.

    The reference encoder does not generate any streams using this, but the
    reference decoder can handle it, so we should as well.

commit a2cdcb353356c2ff13ca8951cb106384a20d46b7
Author: Justin Ruggles <justin.ruggles@gmail.com>
Date:   Wed Dec 7 13:01:01 2011 -0500

    alacenc: implement the 2-pass prediction type.

    This isn't used by the reference encoder, but it is supported by the decoder