dca: Do float -> int16 interleaving in-place using s->dsp.float_to_int16_interleave()
dca: Do float -> int16 interleaving in-place using s->dsp.float_to_int16_interleave()



git-svn-id: a4d7c1866f8397a4106e0b57fc4fbf792bbdaaaf@15020 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

prajnashi/ffmpeg,prajnashi/ffmpeg,prajnashi/ffmpeg,prajnashi/ffmpeg