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QCamera capture documentation fixes

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Added documentation for camera capture queue behavior.

Change-Id: I4989f94c5de0edb3ac99135dcb3e11d76195a880
Reviewed-by: Michael Goddard <michael.goddard@nokia.com>
This commit is contained in:
Dmytro Poplavskiy
2012-03-12 13:27:42 +10:00
committed by Qt by Nokia
parent 2b73f92a7f
commit a15b9d3ce8
3 changed files with 33 additions and 1 deletions
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13
src/multimedia/camera/qcameraimagecapture.cpp
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@@ -493,6 +493,12 @@ void QCameraImageCapture::setCaptureDestination(QCameraImageCapture::CaptureDest
/*!
\property QCameraImageCapture::readyForCapture
Indicates the service is ready to capture a an image immediately.
It's permissible to call capture() while the camera status is QCamera::ActiveStatus
regardless of isReadyForCapture property value.
If camera is not ready to capture image immediately,
the capture request is queued with all the related camera settings
to be executed as soon as possible.
*/
bool QCameraImageCapture::isReadyForCapture() const
@@ -513,7 +519,8 @@ bool QCameraImageCapture::isReadyForCapture() const
/*!
Capture the image and save it to \a file.
This operation is asynchronous in majority of cases,
followed by signals QCameraImageCapture::imageCaptured(), QCameraImageCapture::imageSaved()
followed by signals QCameraImageCapture::imageExposed(),
QCameraImageCapture::imageCaptured(), QCameraImageCapture::imageSaved()
or QCameraImageCapture::error().
If an empty \a file is passed, the camera backend choses
@@ -521,6 +528,10 @@ bool QCameraImageCapture::isReadyForCapture() const
if only file name without full path is specified, the image will be saved to
the default directory, with a full path reported with imageCaptured() and imageSaved() signals.
QCamera saves all the capture parameters like exposure settings or
image processing parameters, so changes to camera paramaters after
capture() is called do not affect previous capture requests.
QCameraImageCapture::capture returns the capture Id parameter, used with
imageExposed(), imageCaptured() and imageSaved() signals.
*/

11
src/multimedia/controls/qcameraimagecapturecontrol.cpp
View File

@@ -95,6 +95,12 @@ QCameraImageCaptureControl::~QCameraImageCaptureControl()
hardware initialized, flash is charged, etc).
Returns true if the camera is ready for capture; and false if it is not.
It's permissible to call capture() while the camera status is QCamera::ActiveStatus
regardless of isReadyForCapture property value.
If camera is not ready to capture image immediately,
the capture request is queued with all the related camera settings
to be executed as soon as possible.
*/
/*!
@@ -111,6 +117,11 @@ QCameraImageCaptureControl::~QCameraImageCaptureControl()
in this case the service should use the system specific place
and file naming scheme.
The Camera service should save all the capture parameters
like exposure settings or image processing parameters,
so changes to camera paramaters after capture() is called
do not affect previous capture requests.
Returns the capture request id number, which is used later
with imageExposed(), imageCaptured() and imageSaved() signals.
*/