Optimize the h264_get_codeNum in libmix

BZ: 145915

Optimize the h264_get_codeNum in libmix to accelerate the
h264 parsing process.

Change-Id: I4a43da8331422f0d686dcee49545ab99bd7daaff
Signed-off-by: wfeng6 <wei.feng@intel.com>
Reviewed-on: http://android.intel.com:8080/140125
Reviewed-by: Shi, PingX <pingx.shi@intel.com>
Tested-by: Shi, PingX <pingx.shi@intel.com>
Reviewed-by: cactus <cactus@intel.com>
Tested-by: cactus <cactus@intel.com>
2 files changed