- a codec may export with CODEC_WITH_FMT also a payload format negotiation function
negotiate_fmt
- transcoder adds fmt strings to transcoder codecs
- changed codec fmt_description such that the codec returns a pointer to a
description array
Conflicts:
core/plug-in/amr/amr.c
core/plug-in/speex/speex.c
(real ticket number: TT#13019)
Change-Id: I47a18a8ba13fa3c3a693f7ed6ae7f614237480d6