[h264]: encoder and decoder share common definition

[h264e]: separate init and config into two functions and add mpp encoder config check function

git-svn-id: https://10.10.10.66:8443/svn/MediaProcessPlatform/trunk/mpp@1145 6e48237b-75ef-9749-8fc9-41990f28c85a

inc/rk_mpi.h

@@ -129,6 +129,10 @@ typedef void* MppParam;
  * and decoder will try to decode the
  */
 typedef struct MppEncConfig_t {
+    /* encoder config also need to know size of itself */
+    RK_U32  size;
+    RK_U32  version;
+
     /*
      * input source data format
      */