Video recording framerate#
Camera 1#
Sample code to monitor video recording framerate:
/** Reference on MainCamera peripheral. */
private var cameraRef: Ref<MainCamera>? = null
/** Monitors and prints video recording framerate. */
fun monitorVideoFramerate(drone: Drone) {
cameraRef = drone.getPeripheral(MainCamera::class.java) { camera ->
// called on main thread when the camera peripheral changes
camera?.recording()?.run {
if (supportedFramerates().isEmpty()) {
// setting value is not relevant if there is no supported value
println("No supported value")
} else {
// get setting value
val framerate = framerate()
println("Current value: $framerate")
// updating flag
println("Updating: $isUpdating")
}
}
}
}
Example of output when video recording framerate is 240 fps:
Current value: FPS_240
Updating: false
Sample code to modify video recording framerate:
/** Sets photo video recording framerate. */
fun setVideoFramerate(drone: Drone, framerate: CameraRecording.Framerate) {
drone.getPeripheral(MainCamera::class.java)?.run {
// set setting value
recording().setFramerate(framerate)
}
}
Trying to change the setting value to an unsupported value has no effect.
Values supported by the camera are provided by CameraRecording.Setting.supportedFramerates()
.
Camera 2#
Video recording framerate is configured with parameter Camera.Config.VIDEO_RECORDING_FRAMERATE
.
Sample code to monitor video recording framerate:
/** Reference on MainCamera peripheral. */
private var cameraRef: Ref<MainCamera>? = null
/** Monitors and prints video recording framerate. */
fun monitorVideoFramerate(drone: Drone) {
cameraRef = drone.getPeripheral(MainCamera::class.java) { camera ->
// called on main thread when the camera peripheral changes
camera?.run {
// get configuration parameter
config[Camera.Config.VIDEO_RECORDING_FRAMERATE].run {
if (supportedValues(onlyCurrent = true).isEmpty()) {
// parameter value is not relevant
// if there is not supported values in current configuration
println("No supported value in current configuration")
} else {
println("Current value: $value")
}
}
}
}
}
Example of output when video recording framerate is 240 fps:
Current value is: FPS_240
Sample code to modify video recording framerate:
/** Sets video recording framerate. */
fun setVideoFramerate(drone: Drone, framerate: Camera.VideoFramerate) {
drone.getPeripheral(MainCamera::class.java)?.run {
// create configuration editor, starting from current configuration
val editor = config.edit(fromScratch = false)
// get configuration parameter
editor[Camera.Config.VIDEO_RECORDING_FRAMERATE].let { configParam ->
// change parameter value,
// and unset other parameters conflicting with this new value
configParam.value = framerate
// complete configuration, by setting missing parameters values
editor.autoComplete()
// send new configuration to drone
editor.commit()
}
}
}
Trying to change the parameter value to an unsupported value has no effect.
Values supported by the camera are retrieved by calling configParam.supportedValues(onlyCurrent = false)
.