You need to call Camera.unlock() from the application before you call
MediaRecorder.setCamera(). When you are done recording, after you call
MediaRecorder.release(), call Camera.lock().
On May 4, 1:30 am, ever <ever_1...@yahoo.com.tw> wrote:
> Hi,
> My MediaRecorder tried to use the camera object opened by Camera app
> through setCamera function, however, it got the following warming
> message and the program halted.
> W/CameraService( 966): Tried to connect to locked camera
>
> It seems that connect function always halts my program since camera
> serveice client had been connected to a process(camera ap process),
> anyone konws how to fix this issue?
>
> status_t CameraService::Client::connect(const sp<ICameraClient>&
> client)
> {
> // connect a new process to the camera
> LOGV("connect (%p)", client->asBinder().get());
>
> // I hate this hack, but things get really ugly when the media
> recorder
> // service is handing back the camera to the app. The
> ICameraClient
> // destructor will be called during the same IPC, making it look
> like
> // the remote client is trying to disconnect. This hack
> temporarily
> // sets the mClientPid to an invalid pid to prevent the hardware
> from
> // being torn down.
> {
>
> // hold a reference to the old client or we will deadlock if
> the client is
> // in the same process and we hold the lock when we remove the
> reference
> sp<ICameraClient> oldClient;
> {
> Mutex::Autolock _l(mLock);
> if (mClientPid != 0) {
> LOGW("Tried to connect to locked camera");
> return -EBUSY;
> }
> oldClient = mCameraClient;
>
> // did the client actually change?
> if (client->asBinder() == mCameraClient->asBinder())
> return NO_ERROR;
>
> mCameraClient = client;
> mClientPid = -1;
> mPreviewCallbackFlag = FRAME_CALLBACK_FLAG_NOOP;
> LOGV("connect new process (%d) to existing camera client",
> mClientPid);
> }
>
> }
> // the old client destructor is called when oldClient goes out of
> scope
> // now we set the new PID to lock the interface again
> mClientPid = IPCThreadState::self()->getCallingPid();
>
> return NO_ERROR;
>
> }
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"android-framework" group.
To post to this group, send email to android-framework@googlegroups.com
To unsubscribe from this group, send email to
android-framework+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-framework?hl=en
-~----------~----~----~----~------~----~------~--~---
