711         MppBuffer   str_buf = NULL; /* input */  in decode()  local
733             ret = mpp_buffer_import(&str_buf, &inputCommit);  in decode()
744             ret = mpp_buffer_get(memGroup, &str_buf, pkt->size);  in decode()
749             memcpy((RK_U8*) mpp_buffer_get_ptr(str_buf), pkt->data, pkt->size);  in decode()
780         mpp_packet_init_with_buffer(&packet, str_buf); /* input */  in decode()
784                          mpp_buffer_get_fd(str_buf), mpp_buffer_get_fd(pic_buf));  in decode()
859         if (str_buf) {  in decode()
860             mpp_buffer_put(str_buf);  in decode()
861             str_buf = NULL;  in decode()
1085     MppBuffer   str_buf = NULL;  in encode()  local
1175         ret = mpp_buffer_import(&str_buf, &outputCommit);  in encode()
1181         ret = mpp_buffer_get(memGroup, &str_buf, hor_stride * ver_stride);  in encode()
1189     mpp_packet_init_with_buffer(&packet, str_buf);  in encode()
1193                      mpp_buffer_get_fd(pic_buf), mpp_buffer_get_fd(str_buf));  in encode()
1318     if (str_buf) {  in encode()
1319         mpp_buffer_put(str_buf);  in encode()
1320         str_buf = NULL;  in encode()