Power On and Start record process in GoPro Camera

GoPro is a camera witth several funcionalities and details. One of them is power on and start the record process. 

Before to start the record process we need to guarantee that the camera is already POWER ON(Dont forget to turn on the wifi capability in the GoPro camera). To do it, we need to dispatch a command to get the GoPro status, see the method verifyIfGoProIsPowerOn, basically it will check if the status is (ENCameraPowerStatus.POWERON.getCode()). If no, we need to send a power on command to it. 

To make the power on command, we will send a url reques to the GoPro Ip address, using the link below:

Turn on camera : http://<ip>/bacpac/PW?t=<password>&p=%01

If yes, you need to proceed to check if the camera is already prepared to receive a record commands, sometime the GoPro may take some time to boot, so you need to guarantee the condition.  After that, when the camera is ready to record, we dispatch another url request to the go pro to start the record process. 

 Start capture : http://<ip>/bacpac/SH?t=<password>&p=%01

Just to remember, the following functions are abstracting several calls for easier manipulation.

The example below contains a snippet code. 

public void powerOnAndStartRecord() throws Exception {
        boolean goproIsReady = false;

        try {
                verifyIfGoProIsPowerOn();

                verifyIfGoProIsReadyToRecord();

                goproIsReady = true;
        } catch (Exception e) {
                System.out
                                .println("The gopro is not poweron. Let try agin power on. ["
                                                + e.getMessage() + "]");
                goproIsReady = powerAndWaitUntilIsReady();
        }

        if (goproIsReady) {

                waitUntilIsReadyToReceiveCmd();

                System.out.println("Starting record");
                startRecord();

                System.out.println("Started.");
        }
}

For more information, you can take a look in the source code. See the class GoProApi, look for the method which are not detailed above. 

You can see how download the source code in the link.

How get more information about the GoPro camera(Using the object BacPacStatus)

You can access more information about the GoPro status just using the  object BacPacStatus. There are many attributes inside that can described the camera situation, just read it first.

As displayed in the code below:

//Be sure that you are connected to GoPro WIFI connection before to proceed
                        //Getting the GoPro instance passing the credentials
GoProApi gopro = new GoProApi("goprt4231");
        //Getting extra functions
GoProHelper helper = gopro.getHelper();
                        //With this function you will able to display the camera properties, like if the camera is ready to record or it is already power on.
BacPacStatus bacpacStatus = helper.getBacpacStatus();
                        //Just testing if the camera is ready to proceed with the record process.
int cameraReady = bacpacStatus.getCameraReady();
System.out.println("Camera ready                ? " + cameraReady);
if (ENCameraReady.READY.getCode() != cameraReady) {
throw new Exception(
                                        "The go pro is not ready. Check if it is power on.");
}

Obs: Be sure that you are connected to GoPro WIFI connection before to proceed

How use the API - Simple example

Simples example

//Getting the GoPro instance passing the credentials, the password is the gopro password.
//Dont forget you need to connect in gopro via wifi first. 
GoProApi gopro = new GoProApi("goprt4231");
//Starting a record in Go Pro
gopro.startRecord();
//Stopping a record in Go Pro
gopro.stopRecord();
//Stop record and then dispatch a power off operation against GoPro camera
gopro.stopRecordAndPowerOff();
//See more functions
GoProHelper helper = gopro.getHelper();
//helper.deleteFilesOnSd()

//Example how power on and start, wait some seconds and then stop with power off
for (int i = 0; i < 10; i++) {

        gopro.powerOnAndStartRecord();

        LogX.info("Waiting...." + 2 * _POLLINGTIME);
        Thread.sleep(2 * _POLLINGTIME);

        gopro.stopRecordAndPowerOff();
}

            

**This is a basic example to use the API, you can extend to call more functions. This is a simple abstraction.