mixvbp: h264 parser refinement

BZ: 131068

1) remove redundant code;
2) add debug messages;

Change-Id: I1a624a257fcfcd1eb25519912797c41dae7f42a8
Signed-off-by: Dan Liang <dan.liang@intel.com>
Reviewed-on: http://android.intel.com:8080/139258
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>
21 files changed