add .gitignore
Merge branch 'master' of https://github.com/h264mp4/practice into bit_check
fix bugs in log.h
Merge branch 'master' of https://github.com/h264mp4/practice into bit_check
change log.h, add log.c
add os/cpu project, and cpu test project
modify bitCpu.c
modify bitCpu.c
Merge branch 'master' of https://github.com/h264mp4/practice into bit_check
modify  bitCpu.c
merage from master
merge from master
some changes