use bytestream reader instead of bitstream for THP 5% smaller adpcm.o 20% faster
use bytestream reader instead of bitstream for THP
5% smaller adpcm.o
20% faster


git-svn-id: a4d7c1866f8397a4106e0b57fc4fbf792bbdaaaf@8657 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

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