we could have several thread waiting on the condition and they all need to wake-up.
also added a debug "mTid" field in the class, which contains the tid of the thread (as opposed to pthread_t), this
is useful when debugging under gdb for instance.
we ended-up locking a Mutex that had been destroyed.
This happened because we gave an sp<Source> to the outside world,
and were called after LayerBuffer had been destroyed.
Instead we now give a wp<LayerBuffer> to the outside and have it
do the destruction.
Add a parameter to ToneGenerator.startTone() allowing the caller to specify the tone duration. This is used by the phone application to have a precise control on the DTMF tone duration which was not possible with the use of delayed messaged.
Also modified AudioFlinger output threads so that 0s are written to the audio output stream when no more tracks are ready to mix instead of just sleeping. This avoids an issue where the end of a previous DTMF tone could stay in audio hardware buffers and be played just before the beginning of the next DTMF tone.
Rewrote SurfaceFlinger's buffer management from the ground-up.
The design now support an arbitrary number of buffers per surface, however the current implementation is limited to four. Currently only 2 buffers are used in practice.
The main new feature is to be able to dequeue all buffers at once (very important when there are only two).
A client can dequeue all buffers until there are none available, it can lock all buffers except the last one that is used for composition. The client will block then, until a new buffer is enqueued.
The current implementation requires that buffers are locked in the same order they are dequeued and enqueued in the same order they are locked. Only one buffer can be locked at a time.
eg. Allowed sequence: DQ, DQ, LOCK, Q, LOCK, Q
eg. Forbidden sequence: DQ, DQ, LOCK, LOCK, Q, Q
Do not ramp volume if the first frame of a track is processed after the track was stopped.
In the case of very short sounds, the track stop request can be received by AudioFlinger just after the start request before the first frame is mixed by AudioMixer. In this case, the track is already in stopped state and initial volume is applied with a ramp for the first frame processed which should not be the case: initial volume change is always applied immediatelly.
This addresses a few parts of the bug:
- There was a small issue in the window manager where we could show a window
too early before the transition animation starts, which was introduced
by the recent wallpaper work. This was the cause of the flicker when
starting the dialer for the first time.
- There was a much larger problem that has existing forever where moving
an application token to the front or back was not synchronized with the
application animation transaction. This was the cause of the flicker
when hanging up (now that the in-call screen moves to the back instead
of closing and we always have a wallpaper visible). The approach to
solving this is to have the window manager go ahead and move the app
tokens (it must in order to keep in sync with the activity manager), but
to delay the actual window movement: perform the movement to front when
the animation starts, and to back when it ends. Actually, when the
animation ends, we just go and completely rebuild the window list to
ensure it is correct, because there can be ways people can add windows
while in this intermediate state where they could end up at the wrong
place once we do the delayed movement to the front or back. And it is
simply reasuring to know that every time we finish a full app transition,
we re-evaluate the world and put everything in its proper place.
Also included in this change are a few little tweaks to the input system,
to perform better logging, and completely ignore input devices that do not
have any of our input classes. There is also a little cleanup of evaluating
configuration changes to not do more work than needed when an input
devices appears or disappears, and to only log a config change message when
the config is truly changing.
Change-Id: Ifb2db77f8867435121722a6abeb946ec7c3ea9d3
In practice, no one ever writes an apostrophe in an aapt string with the
intent of using it to quote whitespace -- they always mean to include a
literal apostrophe in the string and then are surprised when they find
the apostrophe missing. Make this an error so that it is discovered
right away instead of waiting until late in QA or after the strings have
already been sent for translation. (And fix a recently-introduced string
that has exactly this problem.)
Silence the warning about an empty span in a string, since this seems to
annoy people instead of finding any real problems.
Make the error about having a translated string with no base string into
a warning, since this is a big pain when making changes to an application
that has already had some translations done, and the dead translations
should be removed by a later translation import anyway.
In AudioFlinger::MixerThread::putTracks(), change the mFillingUpStatus flag to FS_FILLING for active tracks so that mute request is executed without ramping volume down when the track is moved from A2DP to hardware output.
Also modified AudioFlinger::setStreamOutput() so that the notification of the change is sent only once to AudioSystem.
(in this case the state is dumped without the proper locks held which could result to a crash)
in addition, the last transaction and swap times are printed to the dump as well as the time spent
*currently* in these function. For instance, if SF is unresponsive because eglSwapBuffers() is stuck,
this will show up here.
what happened is that the efective pixel format is calculated by SF but Surface nevew had access to it directly.
in particular this caused query(FORMAT) to return the requested format instead of the effective format.
this would happen is the window is made visible but the client didn't render yet into it. This happens often with SurfaceView.
Instead of filling the window with solid black, SF would simply ignore it which could lead to more disturbing artifacts.
in theory the window manager should not display a window before it has been drawn into, but it does happen occasionnaly.
Apparently the problem is caused by the fact that A2dpAudioStreamOut::standby() calls a2dp_stop() after the headset has been powered down.
The workaround consists in indicating to A2DP audio hardware that a close request is pending and that stanby() must be bypassed.
This change makes SurfaceHolder.setType(GPU) obsolete (it's now ignored).
Added an API to android_native_window_t to allow extending the functionality without ever breaking binary compatibility. This is used to implement the new set_usage() API. This API needs to be called by software renderers because the default is to use usage flags suitable for h/w.
This is because the AudioFlinger duplicating thread is closed while the output tracks are still active. This cause the output tracks objects to be destroyed at a time where they can be in use by the destination output mixer.
The fix consists in adding the OutputTrack to the track list (mTracks) of its destination thread so that a strong reference is help during the mixer processed and the track is detroyed only when safe by destination thread.
Also added detection of problems when creating the output track (e.g. no more tracks in mixer). In this case the output track is not added to output track list of duplicating thread.
When changing the audio output stream sampling rate with setParameters() make sure that all tracks have a sampling rate less or equal to 2 times the new output sampling rate.
Merge change 7419 from master that may help eliminate the problem.
This change was for a different use case (when disabling A2DP to switch output to SCO) but without a repro case it is worth trying.
The BT headset detection now makes the difference between car kits and headsets, which can be used by audio policy manager.
The headset connection is also detected earlier, that is when the headset is connected and not when the SCO socket is connected as it was the case before. This allows the audio policy manager to suspend A2DP output while ringing if a SCO headset is connected.
There was no garanty that the corresponding thread destructor had been already called when exiting the closeOutput() or closeInput() functions.
This contructor could be called by the thread after the exit condition is signalled. By way of consequence, closeOutputStream() could be called after
we exited closeOutput() function.
To solve the problem, the call to closeOutputStream() or closeInputStream() is moved to closeOutput() or closeInput().
The function checkForNewParameters_l() is called with the ThreadBase mutex mLock locked. In the case where the parameter change implies
an audio parameter modification (e.g. sampling rate) the function sendConfigEvent() is called which tries to lock mLock creating a deadlock.
The fix consists in creating a function equivalent to sendConfigEvent() that must be called with mLock locked and does not lock mLock.
Also added the possibility to have more than one set parameter request pending.
Use integers instead of void* as input/output handles at IAudioFlinger and IAudioPolicyService interfaces.
AudioFlinger maintains an always increasing count of opened inputs or outputs as unique ID.
* changes:
update most gl tests to use EGLUtils
added two EGL helpers for selecting a config matching a certain pixelformat or native window type
added NATIVE_WINDOW_FORMAT attribute to android_native_window_t
The major things going on here:
- The MotionEvent API is now extended to included "pointer ID" information, for
applications to keep track of individual fingers as they move up and down.
PointerLocation has been updated to take advantage of this.
- The input system now has logic to generate MotionEvents with the new ID
information, synthesizing an identifier as new points are down and trying to
keep pointer ids consistent across events by looking at the distance between
the last and next set of pointers.
- We now support the new multitouch driver protocol, and will use that instead
of the old one if it is available. We do NOT use any finger id information
coming from the driver, but always synthesize pointer ids in user space.
(This is simply because we don't yet have a driver reporting this information
from which to base an implementation on.)
- Increase maximum number of fingers to 10. This code has only been used
with a driver that reports up to 2, so no idea how more will actually work.
- Oh and the input system can now detect and report physical DPAD devices.
If the output stream handler passed was not the A2DP output stream, the request was ignored instead of being forwarded downstream to hardware interface.
there was several issues:
- when a surface was made non-current, the last frame wasn't shown and the buffer could stay locked
- when a surface was made current the 2nd time, it would not dequeue a new buffer
now, queue/dequeue are done when the surface is made current.
for this to work, a new query() hook had to be added on android_native_window_t, it allows to retrieve some attributes of a window (currently only width and height).
The current gralloc allocates buffer memory for render targets that will typically have NPOT dimensions. Assuming that the vendor driver supports converting the resulting NPOT android_native_buffer_t to a NPOT EGLImage, SurfaceFlinger calls glEGLImageTargetTexture2DOES(), and uses glGetError() to test whether the GL can support creating an EGL target texture with the specified NPOT EGLImage. If it is supported, the DIRECT_TEXTURE flag remains set, otherwise it is cleared.
Tangentially, if the driver advertises the GL_ARB_texture_non_power_of_two extension, the NPOT_EXTENSION flag is set, otherwise it is cleared.
If the driver supported creating an EGL target texture from a NPOT source EGLImage, it implicitly creates a NPOT texture. This does not need any glScalef() texture coordinate correction in LayerBase::drawWithOpenGL(). However, the same driver may not advertise the GL_ARB_texture_non_power_of_two extension nor generally support NPOT textures that were not derived from EGLImages. So SurfaceFlinger may flag only DIRECT_TEXTURE, not NPOT_EXTENSION.
Therefore, the test in LayerBase::drawWithOpenGL() should only perform the glScalef() if neither NPOT_EXTENSION or DIRECT_TEXTURE are flagged. Otherwise scaling is applied to NPOT EGL target textures when none is required.
It turns out we were not returning the density for anything retrieved from a
TypedArray... which basically means any bitmap references from a layout or style...!!!
This is now fixed.
Also fiddle with the density compatibility mode to turn on smoothing in certain situations,
helping the look of things when they need to scale and we couldn't do the scaling at
load time.
Merge commit '1521cd6e657ba4efa9382ab73d3cbba3bdf50ead'
* commit '1521cd6e657ba4efa9382ab73d3cbba3bdf50ead':
Reset the mDpiX and mDpiY values when qemu.sf.lcd_density is defined.
* changes:
Fix the IOException in wallpaper restore -- the padding isn't required at the end.
Fix bug 1982892 - batteryservice turns off device even while plugged in
Initial commit for review.
Integrated comments after patch set 1 review.
Fixed lockup in AudioFlinger::ThreadBase::exit()
Fixed lockup when playing tone with AudioPlocyService startTone()
* changes:
Add a flag to set whether the overlay has been initialized. Commit needs to be called at least once on each overlay, and it appears that sometimes this doesn't happen because the visibility never changes. With this change the overlay parameter and position will be committed when either the visibility of the window changes, or on the first call to visibility resolved, if it hasn't already been done.
doesn't happen because the visibility never changes. With this change
the overlay parameter and position will be committed when either the visibility
of the window changes, or on the first call to visibility resolved, if it
hasn't already been done.
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
This changes the names of the directories in aapt, to what you see
in the list of DpiTest resources. Also adds a new "long" configuration
for wide screens, which the platform sets appropriate, and introduces
a new kind of resizeability for not large but significantly larger
than normal screens which may have compatibility issues.
This will be used to avoid unnecessarily listening to data from sensors
that function as event devices.
Signed-off-by: Mike Lockwood <lockwood@android.com>
Patch supplied on advice of partner. This causes us to send suspend_sink to
Bluez via socket interface, so we enter suspend on the A2DP link faster.
This is especially important when switching to SCO so that we come closer to
whitepaper recommendations to suspend A2DP before setting up SCO.
We have another patch set to add DBUS A2DP suspend and resume calls to Bluez
that will do a better job of following whitepaper recommendations for
A2DP -> SCO -> A2DP, but this small patch is still an improvement.
The kernel can now publish a property describing the layout of virtual
hardware buttons on the touchscreen. These outside of the display
area (outside of the absolute x and y controller range the driver
reports), and when the user presses on them a key event will be
generated rather than a touch event.
This also includes a number of tweaks to the absolute controller
processing to make things work better on the new screens. For
example, we now reject down events outside of the display area.
Still left to be done is the ability to cancel a key down event,
so the user can slide up from the virtual keys to the touch screen
without causing a virtual key to execute.
Merge commit '8a715b4b791db4390d12e0ded02280592634a424'
* commit '8a715b4b791db4390d12e0ded02280592634a424':
Add useful functions to String8, which enables users to convert between UTF-8 and UTF-32
* changes:
Add useful functions to String8, which enables users to convert between UTF-8 and UTF-32 It will be used in SQL functions in external/sqlite/android. See https://android-git.corp.google.com/g/Gerrit#change,5511 for example.
Merge commit '88e209dcf8c2ebddda5c272f46d1bd5478bc639c'
* commit '88e209dcf8c2ebddda5c272f46d1bd5478bc639c':
Fix issue 1743700: AudioTrack: setPlaybackRate can not set the playback rate to twice of the ouputSR
Store sample rate on 32 bits instead of 16 bits in audio_track_cblk_t.
Removed sampleRate() methods from AudioTrack and AudioRecord: replaced by getSampleRate().
AudioTrack::setSampleRate() no returns a status.
Merge commit '991eec03a73f8803d0f8c80b418480ea25293cfb'
* commit '991eec03a73f8803d0f8c80b418480ea25293cfb':
Don't re-parse the framework resources all the time.
A small optimization to the resource code, to not re-parse the framework
resources every time we build a new AssetManager. Instead, you can now
construct a ResTable from a previously created one... of course, like the
existing code for using the data in-place, you can't delete the original
ResTable until you have deleted the one that has been constructed from it.
Merge commit 'c7396025e59524e7ef639fd86fc23123939ee91c'
* commit 'c7396025e59524e7ef639fd86fc23123939ee91c':
Return CAMERA_ERROR_SERVER_DIED to camera app when camera service dies (bug 1956726)
Merge commit '2bbb80e183c6492689f8b10b2d0f5dfe9872a6ac'
* commit '2bbb80e183c6492689f8b10b2d0f5dfe9872a6ac':
Less logging in some places. More in others.
Merge commit '58ebdcc06eca06741460a7db2be4b79e3865eb88'
* commit '58ebdcc06eca06741460a7db2be4b79e3865eb88':
fix [1947273] the DimLayer causes the whole screen to update during transactions
It turns out this was not a problem in the resource code at all. Rather,
the system process has a cache of pre-loaded attributes it uses to avoid
continually reloading things as it needs them. Well it turns out this
cache wasn't flushed after a package was uninstalled or a configuration
changed, so you could re-install an app where you change its style resources
so its theme now points to one that is inconsistent in the cache.
This is mostly a problem for developers, where they continually install
new versions of an app where resources have changed. This could possibly
show up when updating an app on a normal phone, although the problem would
eventually correct itself since this cache uses weak references.
Anyway, the cache is now reworked to be flushed appropriately.
This change also includes an update to aapt to be able to dump the
contents of bags in resources.
we can't use a texture of 1/4th of the screen for the dim layer, because the mdp internal input resultion is alwyas integers and for very small blits of a couple pixels the scale factor can get way out of range, for instance for a 7 pixels source, the scale factor would be either 7 (7/1) or 3.5 (7/2) instead of 4 (7/1.75). This caused the mdp to fail in some cases and revert to software. we now always use a texture of the actual screen size, so the problem will never happen. This burns 300KB of pmem instead of 21KB. On devices with a larger screen we might want to use a smaller texture and tile it by hand.
Merge commit 'd09f86ce175fad6ddbd446363f327dfa0575a1d2'
* commit 'd09f86ce175fad6ddbd446363f327dfa0575a1d2':
Better (and less) logging from backup.
Add an extra null terminator. String8::unlockBuffer is
Merge commit '72eb0acad5cffc57ce5006f6deab29ee259e461e'
* commit '72eb0acad5cffc57ce5006f6deab29ee259e461e':
Expand support for different screen sizes.
* changes:
Better (and less) logging from backup.
Add an extra null terminator. String8::unlockBuffer is supposed to be doing this, but it's not and I can't figure out why. This makes BackupHelperDispatcher able to read the keys correctly.
Applications can now declare that they support small, normal, or
large screens. Resource selection can also be done based on these
sizes. By default, pre-Donut apps are false for small and large,
and Donut or later apps are assumed to support all sizes. In either
case they can use <supports-screens> in their manifest to declare
what they actually support.
Merge commit 'c44989d6c7bcc761fb37f54fd37aac2070ba8e5e'
* commit 'c44989d6c7bcc761fb37f54fd37aac2070ba8e5e':
move ui/Time.cpp to core/jni, since this is the only place it is used
Merge commit 'df65b60ce33e5a56815864f8f0713e25378fa649'
* commit 'df65b60ce33e5a56815864f8f0713e25378fa649':
Only report "unknown metadata" once per restore helper
Merge commit '54118adb3766fdf73a409102b88d7494bb6889a3'
* commit '54118adb3766fdf73a409102b88d7494bb6889a3':
Put back LOGP -> printf in the backup helper code
Merge commit '3d7b8d1aa6a362292f56defbe8fb2d5653f79282'
* commit '3d7b8d1aa6a362292f56defbe8fb2d5653f79282':
Use a ref-counted callback interface for Camera.
This allows the camera service to hang onto the callback interface
until all callbacks have been processed. This prevents problems
where pending callbacks in binder worker threads are processed
after the Java camera object and its associated native resources
have been released.
Bug 1884362
This change adds a fixed-size metadata block at the head of each file's content
entity. The block is versioned, and fixed-size on the theory that it might be
nice to be able to recover the content (if not the full metadata) of the files
if we're ever confronted with data backed up some hypothetical future helper
that stored expanded metadata.
The net effect is that now on restore, we assign the same access mode to the
file that it originally had when backed up.
Also, some of the code was failing to properly free transient heap-based buffers
when it encountered errors. This has been fixed with the addition of a tiny
stack-based object whose job it is to free() its designated pointer from its
destructor.
Merge commit '11b157790234d3d2f116ce4c7ed1d3d00fb78bc3'
* commit '11b157790234d3d2f116ce4c7ed1d3d00fb78bc3':
Add file mode to the file-backup saved state blobs
This change puts the file's access mode into the saved-state blob used by the
file backup helpers. The tests have been updated for the new blob content
format.
What this change *doesn't* do is actually backup/restore the file mode. This
change is a prerequisite for that, but mode preservation in backup/restore will
require adding metadata to the backup data stream itself, so will be approached
a bit more carefully.
(Also fixed one outright bug in the test program: ReadEntityData() had been
changed to return a ssize_t union of either a byte-count or a negative number
indicating error, but the test program was still assuming that nonzero == error,
and was spuriously failing.)
Merge commit '72be40490951d3f9d0ada16fcf5288d0c3306d88'
* commit '72be40490951d3f9d0ada16fcf5288d0c3306d88':
fix warnings that will show up with GCC 4.4 (in master)
Merge commit '1585bd24c10d16351f89e32dddbfa799f18db6bd'
* commit '1585bd24c10d16351f89e32dddbfa799f18db6bd':
Report densities in badging, debugging for nine patch bug.
The aapt tool now reports all available densities like it already did
for locales. Also this includes more resource data output, which I
was using to examine bug #1867049 (which at this point I am unable to
reproduce).
Merge commit '16ce3504c5bf98d95d5c36001f755bb4b15253c9'
* commit '16ce3504c5bf98d95d5c36001f755bb4b15253c9':
Make RestoreHelper and friends also write out the snapshot state.
Merge commit 'b1cdb64877ebd3b8c5182913ff02edd8b54a6982'
* commit 'b1cdb64877ebd3b8c5182913ff02edd8b54a6982':
Allow the qemu.sf.lcd_density property to override the value of ro.sf.lcd_density
ro.sf.lcd_density is usually defined in the build.prop file which is parsed by init
before anything else. Since its name begins with "ro.", this property is write-once
and cannot later be modified, e.g. in /system/etc/init.goldfish.sh.
In other words, you cannot use "emulator -prop ro.sf.lcd_density=<value>", since
it is impossible to override the value defined in build.prop
This patch modifies the system to recognize "qemu.sf.lcd_density" as an override
value, which can be set with "emulator -prop qemu.sf.lcd_density=<value>", forcing
a specific density.
A later patch will allow the emulator to automatically set this property depending
on AVD hardware configuration settings.
Merge commit '2fdd428e0f18384160f7c38ce3a2cd9ba7e7b2c2'
* commit '2fdd428e0f18384160f7c38ce3a2cd9ba7e7b2c2':
Fix some backup reader/writer issues; make local transport do backup
Fix the jni initializer.
Add RestoreFileHelper, BackupDataInput, and add java wrappers for the methods on BackupDataOutput.
Fix bug #1812041: activity manager crash with bad args.
Journal backup requests so that they won't be lost in a crash
Fix data connection issues.
Merge commit '78f0f8cb2efe9410127c39201e240f6d438eb53c'
* commit '78f0f8cb2efe9410127c39201e240f6d438eb53c':
Make the file backup helper not crash if a file you requested
Fix SharedPrefsBackupHelper so it doesn't hard code the paths to the files.
StringArray is used in two places in framework/base and in the Sim. Ideally we should get rid of it and use Vector<String8> instead of creating new code.
Merge commit '2a3188672ab2b65c0ce7c9c598a463e382c47696'
* commit '2a3188672ab2b65c0ce7c9c598a463e382c47696':
rename a few files to camel-case, add copyright notices
now, all destruction path, go through the purgatory which is emptied when ~ISurface is called, but we also make sure to remove the surface from the current list from there (in case a client forgot to request the destruction explicitely).
Merge commit 'b61ae351256518add7bcb40e0bf18337dd87195c'
* commit 'b61ae351256518add7bcb40e0bf18337dd87195c':
log the geomerty of surfaces causing an out of memory in SurfaceFlinger.
Merge commit 'd9cc7659fa9b8544e2a3ca7b7040fbd79afdf7ea'
* commit 'd9cc7659fa9b8544e2a3ca7b7040fbd79afdf7ea':
Fix issue 1883666: Audio coming from the music player stopped suddenly
The problem comes from the code handling the automatic change of audio routing to speaker when notifications are played. The music is also muted while the sound is forced to speaker.
To avoid truncating the end of the notification, a delay is inserted between the end of the notification and the restoration of the audio routing. If a new notification starts during this delay, the current music mute state read and saved before muting music corresponds to the forced mute due to previous notification. When the new notification ends, the mute state restored is muted and music stream stays muted for ever.
The fix consists in reading and saving music mute state only if the audio routing has been restored (check that mForcedRoute is back to 0).
- return "const" objects for overloaded operators to disallow constructs like: (a+b) = c;
- don't return references to non-static members, it's not always safe.
- Point.cpp was empty, so get rid of it
- make sure that all binder Bn classes define a ctor and dtor in their respective library.
This avoids duplication of the ctor/dtor in libraries where these objects are instantiated.
This is also cleaner, should we want these ctor/dtor to do something one day.
- same change as above for some Bp classes and various other non-binder classes
- moved the definition of CHECK_INTERFACE() in IInterface.h instead of having it everywhere.
- improved the CHECK_INTERFACE() macro so it calls a single method in Parcel, instead of inlining its code everywhere
- IBinder::getInterfaceDescriptor() now returns a "const String16&" instead of String16, which saves calls to String16 and ~String16
- implemented a cache for BpBinder::getInterfaceDescriptor(), since this does an IPC. HOWEVER, this method never seems to be called.
The cache makes BpBinder bigger, so we need to figure out if we need this method at all.
This change is the first part of a fix for issue 1846343, :
- Added new enum values for input sources in AudioRecord and MediaRecorder for voice uplink, downlink and uplink+downlink sources.
- renamed streamType to inputSource in all native functions handling audio record.
A second change is required in opencore author driver and android audio input to completely fix the issue.
Added missing include sys/time.h for utimes.
Detects when stat64 uses a timespec for the modif and access times
and work around the missing st_*time_nsec.
Apologies for the whitespace changes, emacs removed them automatically.
Merge commit 'd50a458bb291801ab9fdc119301bc7b84b42a6e3'
* commit 'd50a458bb291801ab9fdc119301bc7b84b42a6e3':
Fix a major bug in Bundle when unparcelling from AIDL.
There was a serious problem in the Bundle(Parcel) and readFromParcel() methods,
where it wasn't doing the copying of the Parcel that Parcel.readBundle() does
and is a basic requirement for it to work correctly.
This re-arranges the code to make all of these functions (hopefully) correct.
Also fix a problem in Parcel where we were not duping fds when copying data from
one Parcel to another.
Merge commit 'e29146158b6048936671decc060d398a68333fc0'
* commit 'e29146158b6048936671decc060d398a68333fc0':
Hook up the backup data writer, and add a utility to read the backup data files.
Merge commit 'a59aba8cd88b8f98fa4de2a903899bc6ac9f73e8'
* commit 'a59aba8cd88b8f98fa4de2a903899bc6ac9f73e8':
Update more references to openInputStream in support classes.
Modify AudioFlinger to use updated openInputStream factory method.
Merge commit 'e85bb9ebcce85b8c7a0e0ccb5116cd25bf684727'
* commit 'e85bb9ebcce85b8c7a0e0ccb5116cd25bf684727':
Add the backup data file writer C++ class.
Merge commit '4535e40544aeb957d44fad75fbe5676effe03689'
* commit '4535e40544aeb957d44fad75fbe5676effe03689':
Implement the C++ class to write the backed up file data.
