Unhides the Camera API calls for using the auto-exposure and
auto-white balance locks. Adds documentation about the interaction
between auto-focus and the AE and AWB locks.
Change-Id: I5bf73b9dce1c93e11a17f9d3efb82db1261524c5
The purpose of ICameraRecordingProxy and ICameraRecordingProxyListener is to
allow applications using the camera during recording.
Camera service allows only one client at a time. Since camcorder application
needs to own the camera to do things like zoom, the media recorder cannot
access the camera directly during recording. So ICameraRecordingProxy is a proxy
of ICamera, which allows the media recorder to start/stop the recording and
release recording frames. ICameraRecordingProxyListener is an interface that
allows the recorder to receive video frames during recording.
ICameraRecordingProxy
startRecording()
stopRecording()
releaseRecordingFrame()
ICameraRecordingProxyListener
dataCallbackTimestamp()
The camcorder app opens the camera and starts the preview. The app passes
ICamera and ICameraRecordingProxy to the media recorder by
MediaRecorder::setCamera(). The recorder uses ICamera to setup the camera in
MediaRecorder::start(). After setup, the recorder disconnects from camera
service. The recorder calls ICameraRecordingProxy::startRecording() and
passes a ICameraRecordingProxyListener to the app. The app connects back to
camera service and starts the recording. The app owns the camera and can do
things like zoom. The media recorder receives the video frames from the
listener and releases them by ICameraRecordingProxy::releaseRecordingFrame.
The recorder calls ICameraRecordingProxy::stopRecording() to stop the
recording.
The call sequences are as follows:
1. The app: Camera.unlock().
2. The app: MediaRecorder.setCamera().
3. Start recording
(1) The app: MediaRecorder.start().
(2) The recorder: ICamera.unlock() and ICamera.disconnect().
(3) The recorder: ICameraRecordingProxy.startRecording().
(4) The app: ICamera.reconnect().
(5) The app: ICamera.startRecording().
4. During recording
(1) The recorder: receive frames from ICameraRecordingProxyListener.dataCallbackTimestamp()
(2) The recorder: release frames by ICameraRecordingProxy.releaseRecordingFrame().
5. Stop recording
(1) The app: MediaRecorder.stop()
(2) The recorder: ICameraRecordingProxy.stopRecording().
(3) The app: ICamera.stopRecording().
bug:2644213
Change-Id: I15269397defc25cbbcae16abc071c8349c123122
Due to the property trigger on persist.sys.usb.config,
setting the default function also sets the current function.
Now we combine both of these methods into setCurrentFunction, which has
a "makeDefault" option to make the new function the default.
This change should eliminate some problems with setting properties due to
multiple property triggers happening at the same time.
Change-Id: I9851299e9c2ee20475eada1a8104c0d50bf5a9e1
Signed-off-by: Mike Lockwood <lockwood@android.com>
Adds a new camera parameter for locking auto-white balance to its
current value. Also adds a function for checking if auto-white balance
lock is supported by the current platform. Lock semantics match that
of the auto-exposure lock.
Hidden for now.
Change-Id: Id59339a4be84d55c1b0b8473d765b6aa765999b2
Adds a new camera parameter for locking auto-exposure to its current
value. Also adds a function for checking if auto-exposure lock is
supported by the current platform.
Hidden for now.
Change-Id: Id452371191ab220318ce2cb98b8ee91bdde9aab6
