History log of /frameworks/av/include/media/AudioRecord.h
Revision Date Author Comments (<<< Hide modified files) (Show modified files >>>)
caf7f48a0ef558689d39aafd187c1571ff4128b4 26-Nov-2014 Eric Laurent <elaurent@google.com> AudioRecord: use audio attributes instead of audio source.

Added AudioRecord constructor with audio attributes.
Replaced AudioPolicymanager::getInput() by getInputForAttr().

No new functionality for now.

Also:

- Fixed warnings in AudioPolicyManager
- Allocate audio session ID before calling getOutputForAttr() in
AudioTrack.

Bug: 16006090.
Change-Id: I15df21e4411db688e3096dd801cf579d76d81711
/frameworks/av/include/media/AudioRecord.h
7410591dad836434c72ddee66680802708b70c10 03-Jul-2014 Glenn Kasten <gkasten@google.com> Move AudioRecord frame count calculations to server

Buffer frame count and notification frame count
are now calculated by server instead of by client.
The server has more information and can do a better job.

Also fix a few bugs:

- If a fast track was re-created, even with same pipe depth, it would fail.
Now it can correctly re-create a fast track provided the pipe depth is same.

- Notification frame count for fast tracks was calculated by client
as 1/2 of the total frame count, which is a large value due to the pipe.
Now the notification frame count is set by server to the HAL frame count.
This should reduce latency for fast tracks.

- EVENT_OVERRUN were happening frequently when there was sample rate conversion,
because the client didn't know about the sample rate conversion,
and under-estimated the necessary buffer size. Now since server
calculates the buffer sizes, EVENT_OVERRUN is unlikely.

- RecordThread::createRecordTrack_l was checking for mono and stereo
for fast tracks. This is not necessary, and now we can handle a
multi-channel fast track.

Bug: 7498763
Change-Id: I0c581618e8db33084d5ff9ed50a592990c9749e8
/frameworks/av/include/media/AudioRecord.h
7c6f87856c0880ee39c2107a0fc3c9b41f8c195c 03-Jul-2014 Glenn Kasten <gkasten@google.com> Add new API AudioRecord::notificationFrames()

Change-Id: I27fb888f01ed547242ffaa8d4626d38c7999ad53
/frameworks/av/include/media/AudioRecord.h
d776ac63ce9c013c9626226e43f7db606e035838 07-May-2014 Glenn Kasten <gkasten@google.com> IAudioFlinger::openRecord returns IMemory(s)

openRecord() now explicitly returns the control block and data buffer
as separate IMemory references. If the IMemory for data buffer
is 0, this means it immediately follows the control block.

Change-Id: Ic098f88f0e037f8fbe30006689e18cacacf09d06
/frameworks/av/include/media/AudioRecord.h
bce50bfc3846ab008bafa75c5d3f29fd7b5395f7 28-Feb-2014 Glenn Kasten <gkasten@google.com> Fix type of AudioTrack/AudioRecord parameter frameCount

It's size_t consistently

Change-Id: I29638ef59ac773218025f2403a3508a307b487e0
/frameworks/av/include/media/AudioRecord.h
838b3d8bafa4a781e277870dee4e0390165cff52 28-Feb-2014 Glenn Kasten <gkasten@google.com> Fix type of AudioTrack/AudioRecord parameter notificationFrames

It's uint32_t consistently

Change-Id: If8298c7e9aeea2b951fe47b675adbdf48d104846
/frameworks/av/include/media/AudioRecord.h
01d3acba9de861cb2b718338e787cff3566fc5ec 06-Feb-2014 Glenn Kasten <gkasten@google.com> Fix clang warnings in AudioFlinger

Change-Id: I0fa61025c979709ad7d655bc717df5f194b6089e
/frameworks/av/include/media/AudioRecord.h
b3b2e23fcf7e050710d23b82a6682c0f3d869b69 05-Feb-2014 Glenn Kasten <gkasten@google.com> Add AudioRecord::mReqFrameCount similar to AudioTrack

Change-Id: I62d6534a9581e84ae20c2422f7ad9aeda9b7c4df
/frameworks/av/include/media/AudioRecord.h
38e905b3cbba4da443d799b16999989781afc6d8 13-Jan-2014 Glenn Kasten <gkasten@google.com> Refactor code related to I/O handles to reduce chance for leaks

The AudioRecord input handle code was refactored earlier
to fix a potential handle leak, and to simplify the code:
> Change-Id: I124dce344b1d11c2dd66ca5e2c9aec0c52c230e2

This changelist refactors AudioTrack similarly,
and adds further cleanup of both AudioTrack and AudioRecord.

We attempt to implement the rules for referencing counting I/O handles,
but there is still the possibility of a handle leak if the client process
dies after allocating the handle reference but before releasing it.
That issue is being tracked separately.

Details:
- AudioSystem::getOutput() is now called within createTrack_l
- restoreTrack_l was missing offload info
now it has the info available,
but is not yet being called for offloaded tracks
- AudioTrack::getOutput() is now const
- Remove getOutput_l()

Change-Id: I44a0a623d24fc5847bcac0939c276400568adbca
/frameworks/av/include/media/AudioRecord.h
3a0b6bd22aa32daa729b05c33896400807027eee 17-Jan-2014 Glenn Kasten <gkasten@google.com> Merge "Use uint32_t sequence numbers for IAudioRecord"
6a507298357c9ff869b97db57a890e58bd6bdec0 17-Jan-2014 Glenn Kasten <gkasten@google.com> Merge "AudioRecord::getInputFramesLost() cleanup"
32a7e0a5f7b000951b9adb80b17796f35b024816 17-Jan-2014 Glenn Kasten <gkasten@google.com> Merge "Unify comments between AudioTrack and AudioRecord"
8ff50e7526d24aca11713006933b8dcb64ef6be9 15-Jan-2014 Glenn Kasten <gkasten@google.com> Use uint32_t sequence numbers for IAudioRecord

This makes it the same as for IAudioTrack.

Previously we had a mix of int, int32_t and uint32_t,
which could cause comparisons to fail.

Change-Id: Ic72ef650ee81f65db11e42ed16d818fdf3e310f4
/frameworks/av/include/media/AudioRecord.h
5f972c031d4061f4f037c9fda1ea4bd9b6a756cd 13-Jan-2014 Glenn Kasten <gkasten@google.com> AudioRecord::getInputFramesLost() cleanup

Fixed bug that if the binder call failed (for example if the
IAudioFlinger binder is dead), then getInputFramesLost was returning
garbage. Now it correctly returns zero, which is the error value for
this method.

The type declarations for getInputFramesLost were inconsistent:
a mixture of unsigned int, size_t, and uint32_t. Now it returns uint32_t
everywhere, which is what the underlying HAL API returns.

Added a FIXME about the side effect behavior. This will need review
for multi-client.

Change-Id: Ifa2e117a87dbd0c1f2c892a31d1c3dd919bf1a0a
/frameworks/av/include/media/AudioRecord.h
5b27ccd67c845aa20a12a1fb58339e7e81e3d536 15-Jan-2014 Glenn Kasten <gkasten@google.com> Merge "Use AUDIO_SESSION_ALLOCATE instead of 0"
2b2165c75790050810460c8de3f414876bce4c0e 13-Jan-2014 Glenn Kasten <gkasten@google.com> Unify comments between AudioTrack and AudioRecord

Change-Id: I00a1025e2891a1c96218b3c2187eaddda6614ebc
/frameworks/av/include/media/AudioRecord.h
41721bb796da589f8a669d1db7687a0da8f88761 13-Jan-2014 Glenn Kasten <gkasten@google.com> Fix race condition in AudioRecord::pause followed by start

Bug: 11148722
Change-Id: Ia1e14133d73ac301fe06a047e70a573911822630
/frameworks/av/include/media/AudioRecord.h
aea7ea06394bcb155972d82055d4ea59962e4051 26-Jun-2013 Glenn Kasten <gkasten@google.com> Use AUDIO_SESSION_ALLOCATE instead of 0

Also fix a couple of places where we were using AUDIO_SESSION_OUTPUT_MIX,
which happens to also be equal to 0, but has a different meaning.

Change-Id: I90e39be3b89f5021a96d9e3b8d10929013ca977f
/frameworks/av/include/media/AudioRecord.h
7c7be1e05634d96d08210efb4bdeb012ffba440d 20-Dec-2013 Glenn Kasten <gkasten@google.com> Fix some (but not all) unused parameter warnings

Change-Id: Ia99e23a0b46db3f3e6aa46f9018e63c14f4af369
/frameworks/av/include/media/AudioRecord.h
dd0a81253bcf4daef56e991c94dc3c0d1124ef90 20-Sep-2013 Glenn Kasten <gkasten@google.com> am f2c643c8: am 3b3cfcfa: Merge "Fix slow AudioTrack and AudioRecord destruction" into klp-dev

* commit 'f2c643c89e405b57c7ce42067b876fb80031e5fa':
Fix slow AudioTrack and AudioRecord destruction
5a6cd224d07c05b496b6aca050ce5ecf96f125af 20-Sep-2013 Glenn Kasten <gkasten@google.com> Fix slow AudioTrack and AudioRecord destruction

There were two causes for the slowness:

When thread was paused, it used nanosleep and sleep. These usually
run to completion (except for POSIX signal, which we avoid because it
is low-level). Instead, replace the nanosleep and sleep by condition
timed wait, as that can be made to return early by a condition signal.
Another advantage of condition timed wait is that a condition wait was
already being used at top of thread loop, so it is a simpler change.

The AudioRecord destructor was missing a proxy interrupt that was correct
in AudioTrack. This proxy interrupt is needed in case another thread
is blocked in proxy obtainBuffer.

Does not address the 1 second polling for NS_WHENEVER.

Bug: 10822765
Change-Id: Id665994551e87e4d7da9c7b015f424fd7a0b5560
/frameworks/av/include/media/AudioRecord.h
2fc14730e4697a6f456b4631549c9981f6b0b115 05-Aug-2013 Glenn Kasten <gkasten@google.com> Comments

Change-Id: I56f82904cb3855bad6f33ad1ff4ddf66a61c5720
/frameworks/av/include/media/AudioRecord.h
8845337fff1c8faa4296b3bcafcefb41e07fc3ad 13-Aug-2013 Jeff Brown <jeffbrown@google.com> am 82278b2c: am fe9611bd: Merge "Fix potential leak of audio input handle." into klp-dev

* commit '82278b2ceeebbcf345ed81413eeffa82fa82e05b':
Fix potential leak of audio input handle.
ac0bbe16f3eba46b3d8057b66c2aff9101fc6f7d 10-Aug-2013 Jeff Brown <jeffbrown@google.com> Fix potential leak of audio input handle.

The audio input handle is ultimately owned by the audio recorder
object but it could be dropped on the floor if an error occurred
before that object was fully initialized.

Rearranged some of the argument validation and merged getInput_l
with openRecord_l to simplify the code and prevent such a leak
from occurring.

Bug: 10265163
Change-Id: I124dce344b1d11c2dd66ca5e2c9aec0c52c230e2
/frameworks/av/include/media/AudioRecord.h
5e078add4022360d18328ec41eee75703e8c424c 09-Aug-2013 Glenn Kasten <gkasten@google.com> Merge "Line length 100"
f31abb4ee82050030b3e5a0793bb2b8e30f40d31 07-Aug-2013 Glenn Kasten <gkasten@google.com> Merge "Cleanup comments for the new control block implementation"
6d238e5ecb4c4266bc865a067072a30187e55f97 06-Aug-2013 Glenn Kasten <gkasten@google.com> Line length 100

Change-Id: I8ad58a961cefd0b0c2b041e04fd78669917453d1
/frameworks/av/include/media/AudioRecord.h
230c5bde2779c618b26edc73443280b2d9371c70 06-Aug-2013 Glenn Kasten <gkasten@google.com> Merge "AudioRecord notification frames"
743649fa70392b668377fb507d251b346c7b2769 06-Aug-2013 Glenn Kasten <gkasten@google.com> Merge "AudioRecord::openRecord_l now take flags"
77baebfe89c99415a0ee4c2ea87bfd8a0f9e51f1 05-Aug-2013 Glenn Kasten <gkasten@google.com> Merge "AudioRecord::set and constructor now take flags"
9b26847ed122a601ba857e0ef22ee2c818641120 05-Aug-2013 Glenn Kasten <gkasten@google.com> Merge "Make AudioRecord and AudioTrack comments more similar"
f86b18b1ce3cf20a39aea1fcaf90ec66f9d6d63e 05-Aug-2013 Glenn Kasten <gkasten@google.com> Merge "AudioRecord callback thread waits for priority boost"
7cd9cf70e36ad4b8eb12e24f9adbbe6fd69edebd 01-Aug-2013 Glenn Kasten <gkasten@google.com> AudioRecord notification frames

Change-Id: I76ec536d1504eb9a558178b62bf225aace4b40d1
/frameworks/av/include/media/AudioRecord.h
73493688f4190f790ee15d9ca54831cd64f4e195 01-Aug-2013 Glenn Kasten <gkasten@google.com> AudioRecord::openRecord_l now take flags

The new parameter 'flags' of type audio_input_flags_t will be used for
requesting a fast track, but is currently ignored.

Change-Id: If68dfda8b2d4eaaca42927d721b4630c47f71f3b
/frameworks/av/include/media/AudioRecord.h
27f7b2a8fe899565487d8a326676a5f7d0a05a37 01-Aug-2013 Glenn Kasten <gkasten@google.com> AudioRecord::set and constructor now take flags

The new optional parameter 'flags' of type audio_input_flags_t will be
used for requesting a fast track.

Change-Id: Ia7e070cb57c833e608352da354fb30dc26df6918
/frameworks/av/include/media/AudioRecord.h
28f1351369682801e1bb40a835bdae3c97b73c1c 31-Jul-2013 Glenn Kasten <gkasten@google.com> AudioRecord callback thread waits for priority boost

Change-Id: Iae38fa4ac20a45751566169213a08a15deb0a2f6
/frameworks/av/include/media/AudioRecord.h
02de89293b74ab1e9a77ce2367c5c499ab038968 31-Jul-2013 Glenn Kasten <gkasten@google.com> Cleanup comments for the new control block implementation

There was some obsolete and incomplete text left over
after the new control block code was submitted.
This cleans up all those comments to be accurate again.

Change-Id: Ic52f5869cb723cde25d709514d6deea6aa6f20aa
/frameworks/av/include/media/AudioRecord.h
f0f33c4acd231fa95deb9eeef2c46b0129e64463 31-Jul-2013 Glenn Kasten <gkasten@google.com> AudioRecord has no default sample rate

Change-Id: I72feefdd6f3a623fd3669b80d4b264518fdc0929
/frameworks/av/include/media/AudioRecord.h
6ca126d5c83386941c5cb9600099e5510e4430d6 31-Jul-2013 Glenn Kasten <gkasten@google.com> Make AudioRecord and AudioTrack comments more similar

Change-Id: I122a7cf7bfc162090cb27f37c325db7a23985bc7
/frameworks/av/include/media/AudioRecord.h
4d74828fc0f6c13d49a36147a4250bcfa8ad0a47 19-Nov-2012 Glenn Kasten <gkasten@google.com> Remove default channel mask in AudioRecord constructor and set()

Change-Id: I22ad4ba8777842bf6705e79c6ad796fdb9a4104c
/frameworks/av/include/media/AudioRecord.h
e2ffd5b583da9d30d96710b0e8879e90b2b51d30 13-Jun-2013 Glenn Kasten <gkasten@google.com> AudioRecord must be used as sp<> only

Bug: 9423855
Change-Id: I78ba8228c60dff11fb466156bb632c5dda45cdaf
/frameworks/av/include/media/AudioRecord.h
9f80dd223d83d9bb9077fb6baee056cee4eaf7e5 19-Dec-2012 Glenn Kasten <gkasten@google.com> New control block for AudioTrack and AudioRecord

Main differences between old and new control block:
- removes the mutex, which was a potential source of priority inversion
- circular indices into shared buffer, which is now always a power-of-2 size

Change-Id: I4e9b7fa99858b488ac98a441fa70e31dbba1b865
/frameworks/av/include/media/AudioRecord.h
e3aa659e9cee7df5c12a80d285cc29ab3b2cbb39 04-Dec-2012 Glenn Kasten <gkasten@google.com> Start isolating control block accesses in a proxy

The proxy object will eventually be the only code that understands the
details of the control block. This should make it easier to change the
control block in the future.

Initial set of control block fields that are isolated:
- sample rate
- send level
- volume

Prepare for streaming/static separation by adding a union to the control
block for the new fields.

Fix bug in handling of max sample rate on a track. It was only checking
at re-configuration, not at each mix.

Simplify OutputTrack::obtainBuffer.

Change-Id: I2249f9d04f73a911a922ad1d7f6197292c74cd92
/frameworks/av/include/media/AudioRecord.h
a42ff007a17d63df22c60dd5e5fd811ee45ca1b3 14-Nov-2012 Glenn Kasten <gkasten@google.com> Clean up channel count and channel mask

Channel count is uint32_t.
Remove redundant mask parameter to AudioTrack::createTrack_l()
and AudioRecord::openRecord_l().

Change-Id: I5dc2b18eb609b2c0dc3091994cbaa4628062c17f
/frameworks/av/include/media/AudioRecord.h
e33054eb968cbf8ccaee1b0ff0301403902deed6 14-Nov-2012 Glenn Kasten <gkasten@google.com> Use size_t for frame counts

Also fix typo: bufferCount should be frameCount.

Change-Id: Ibed539504db75ef99dc21c8ff1bf2987122063a5
/frameworks/av/include/media/AudioRecord.h
83a0382dc17364567667a4e6135db43f5bd92efc 12-Nov-2012 Glenn Kasten <gkasten@google.com> Move frame size out of the control block

This is part of a series to clean up the control block.

Change-Id: Ifab1c42ac0f8be704e571b292713cd2250d12a3f
/frameworks/av/include/media/AudioRecord.h
b929e417853694e37aba1ef4399f188987b709d9 08-Nov-2012 Glenn Kasten <gkasten@google.com> Move buffers pointer out of the control block

This is part of a series to clean up the control block.

Change-Id: Ie474557db7cb360f2d9a0f11600a68f5a3d46f07
/frameworks/av/include/media/AudioRecord.h
26ba972eafde73a26271ecf027a1d5988ce50eb8 22-Jun-2012 Glenn Kasten <gkasten@google.com> Removed unused fields in AudioRecord::Buffer

Change-Id: I89fc6d8f695b48516d956b0a9a4a43d408f369f9
/frameworks/av/include/media/AudioRecord.h
c28c03b0b819d705522929852ecdb5a8bb50b13b 01-Nov-2012 Glenn Kasten <gkasten@google.com> AudioRecord comments

Change-Id: Ibec910608948d778dc655d900255a80384e9b06f
/frameworks/av/include/media/AudioRecord.h
955e78180ac6111c54f50930b0c4c12395e86cf7 21-Feb-2012 Glenn Kasten <gkasten@google.com> AudioRecord locking

Fix race conditions for EVENT_MARKER and EVENT_NEW_POS callbacks.
Marker and new position update fields are protected by lock.

getSampleRate() doesn't need a lock because it reads from shared memory
control block.

Enforce that the parameter passed with EVENT_MARKER and EVENT_NEW_POS
cannot not be changed by the callback handler, and will not change during
the call by another thread.

Session ID should never change; log if it does.

Change-Id: Ia2c63cf1a71b10bb06c37981bd76437f83fffa91
/frameworks/av/include/media/AudioRecord.h
d64cd233eef39430561c1e1df423336a199cc5d7 21-Feb-2012 Glenn Kasten <gkasten@google.com> AudioRecord::stop() return void

like AudioTrack::stop()

Change-Id: Iab62f4665151345f1ad5874c97a21d1a331f0154
/frameworks/av/include/media/AudioRecord.h
68337edf595a0c345ba4b8adcd4f1e541a1d7eb7 12-Jul-2012 Glenn Kasten <gkasten@google.com> AudioRecord client threading cleanup

Rename ClientRecordThread to AudioRecordThread to be more similar to
AudioTrack naming.

Only create the thread once, and use resume() and pause() for start()
and stop(). This will allow us to have a known client callback thread
tid that we can pass to AudioFlinger before start().

mActive:
Made mActive a bool not int.
mActive is protected by mLock; volatile is meaningless.
Fixed a few places where mActive was accessed without a lock:
- stopped()
- processAudioBuffer()
These aren't used internally, so no need for _l() versions.

Change-Id: I4b8a5c90f3a22d3894b344564cb1c5aef4f1fda2
/frameworks/av/include/media/AudioRecord.h
d4070955e28ae62aa4be1657f9d32acde104bb86 12-Jul-2012 Glenn Kasten <gkasten@google.com> Remove dead code in libmedia

Change-Id: I7d8201590cda29c9fa99662a4fdba222091febfe
/frameworks/av/include/media/AudioRecord.h
dd8104cc5367262f0e5f13df4e79f131e8d560bb 02-Jul-2012 Glenn Kasten <gkasten@google.com> Use audio_channel_mask_t more consistently

In IAudioFlinger::createTrack() and IAudioFlinger::openRecord(),
declare input parameter to use correct type audio_channel_mask_t.

In IAudioFlinger::getInputBufferSize(), input parameter is now channel mask
instead of channel count.

Remove unused IAudioFlinger::channelCount(audio_io_handle_t).

In AudioRecord::getMinFrameCount() and AudioSystem::getInputBufferSize(),
input parameter is channel mask instead of channel count.

Change-Id: Ib2f1c29bea70f016b3cfce83942ba292190ac965
/frameworks/av/include/media/AudioRecord.h
02e84eaff54414e9f10c0f605152728a682c6874 25-Jun-2012 Glenn Kasten <gkasten@google.com> AudioRecord comments

Group the private fields according to how they are used

Change-Id: I7ce3d0939510c10f34bd91a55f6e03afc8e7d43c
/frameworks/av/include/media/AudioRecord.h
624a7fcb377f2a40109c16de5109ae8ea1f67a69 22-Jun-2012 Glenn Kasten <gkasten@google.com> Use audio_channel_mask_t in AudioRecord

Change-Id: I9e1b918b2635d961604a4a9d88eb1c7179a167a7
/frameworks/av/include/media/AudioRecord.h
70be725da4d8aafb94d47c1962e897ecd5fdf823 22-Jun-2012 Glenn Kasten <gkasten@google.com> Remove unused AudioRecord::channels()

It was declared but never implemented or called.

Change-Id: If5846147fcbd7f6d4187971e2044dd6fd3252b42
/frameworks/av/include/media/AudioRecord.h
868a6a357018e5872e064b7a13a9b891e2078962 22-Jun-2012 Glenn Kasten <gkasten@google.com> Include what you use

Change-Id: I12ef9367d05dbe069c037b1b4acd6347a8cf3ece
/frameworks/av/include/media/AudioRecord.h
f92eec53f886f43e4374a36195be55f2a7bbcf36 07-Mar-2012 Glenn Kasten <gkasten@google.com> Remove AudioRecord record_flags

Change-Id: I021ddcc1bcb63132a4597d13e3d09db2a5f2c628
/frameworks/av/include/media/AudioRecord.h
a636433cbd09c0708b85f337ef45c0cdef3bcb4d 19-Apr-2012 Glenn Kasten <gkasten@google.com> Use C APIs instead of C++ APIs for policy

The C++ APIs are going away.

Note: we use tid == 0 which is not supported yet by the C APIs,
do not submit this until that is added.

Change-Id: I0e90789e6c81c69f2544e899c52421ea5d1342be
/frameworks/av/include/media/AudioRecord.h
a0a98ca6ec9b599af79a597cb7c5350b61a77624 21-Apr-2012 Eric Laurent <elaurent@google.com> Made AudioRecord a subclasss of RefBase

Made AudioRecord a subclass of RefBase to allow using strong
references and solve concurrency issues.

Issue 6254582.

Change-Id: Ic1f3845958f477e8b2d23d3d25bf0f666addcb3b
/frameworks/av/include/media/AudioRecord.h
a011e35b22f95f558d81dc9c94b68b1465c4661d 30-Mar-2012 Eric Laurent <elaurent@google.com> implemented synchronous audio capture

Added the infrastructure to support the synchronization of playback and
capture actions on specific events.
The first requirement for this feature is to synchronize the audio capture
start with the full rendering of a given audio content.
The applications can further be extended to other use cases
(synchronized playback start...) by adding new synchronization events and
new synchronous control methods on player or recorders.

Also added a method to query the audio session from a ToneGenerator.

Change-Id: I51f1167290d9cafdf2fbcdf9e4785156973af44c
/frameworks/av/include/media/AudioRecord.h
a075db4ff9b086ac2885df77bb6da0869293df92 06-Mar-2012 Glenn Kasten <gkasten@google.com> IAudioFlinger::createTrack and openRecord flags

createTrack and openRecord don't need the "old" flags parameter,
which was either audio_policy_output_t or audio_in_acoustics_t
shifted left by 16 bits. But they do need "new" flags, which
are defined by the application use case. Initially, the only
application use case flag is timed output, but others are planned.

For output, the audio_policy_output_t flags are passed to
AudioSystem::getOutput, which returns an audio_io_handle_t, and that
handle is then passed to createTrack. So createTrack doesn't need the
old flags parameter.

For input, the audio_in_acoustics_t flags are passed to
AudioSystem::getInput, which returns an audio_io_handle_t, and that
handle is then passed to openRecord. So openRecord doesn't need the
old flags parameter.

Change-Id: I18a9870911846cca69d420c19fe6a9face2fe8c4
/frameworks/av/include/media/AudioRecord.h
679ab0b0792846a89162ce41c953819d70030112 07-Mar-2012 Glenn Kasten <gkasten@google.com> Use AudioRecord::record_flags consistently

Change-Id: I6f369a2b99eb515603bc7d5629a07db2b96783fe
/frameworks/av/include/media/AudioRecord.h
985ed9a1a22ec7e6e245d3fb8e93d3a23bdc539b 02-Mar-2012 Glenn Kasten <gkasten@google.com> Merge "Fix typos and line length in AudioRecord comments"
606ee61616efdba4696ae591ad10a4be33d8c946 25-Feb-2012 Glenn Kasten <gkasten@google.com> AudioRecord const methods

Change-Id: Ifae4fd7820b650aaca2b13c8658c292db1c46c0f
/frameworks/av/include/media/AudioRecord.h
417c27304c67057779693007a7bc08e4dd80c262 24-Feb-2012 Glenn Kasten <gkasten@google.com> Fix typos and line length in AudioRecord comments

Change-Id: I85cfb9a2b9b3ade098161aa7687b4d4f7eb226ea
/frameworks/av/include/media/AudioRecord.h
6dbc1359f778575d09d6da722b060a6d72c2e7c5 02-Feb-2012 Glenn Kasten <gkasten@google.com> AudioRecord and AudioTrack client tid

Inform AudioFlinger of the tid of the callback thread.

Change-Id: I670df92dd06749b057238b48ed1094b13aab720b
/frameworks/av/include/media/AudioRecord.h
4f9b0c54011eb8fd2ccfb393c2dcd51cd07800e0 08-Feb-2012 Glenn Kasten <gkasten@google.com> Merge "Remove dead mutex in AudioTrack/AudioRecord thread"
a0d68338a88c2ddb4502f95017b546d603ef1ec7 28-Jan-2012 Glenn Kasten <gkasten@google.com> Use NULL not 0 for raw pointers

Use if (p != NULL) instead of if (ptr)

Change-Id: Iaec3413a59ccbf233c98fcd918cc7d70ac5da9fa
/frameworks/av/include/media/AudioRecord.h
0e265cf36d201a7ccc0238b5c60b50f43d1dc450 02-Feb-2012 Glenn Kasten <gkasten@google.com> Remove dead mutex in AudioTrack/AudioRecord thread

The client callback threads had mutexes called AudioTrackThread::mLock
and ClientRecordThread::mLock. These mutexes were only used by start()
and stop(), and were unused by the thread itself. But start() and
stop() already have their own protection provided by AudioTrack::mLock
and AudioRecord::mLock. So the thread mutexes can be removed.

Change-Id: I098406d381645d77fba06a15511e179a327848ef
/frameworks/av/include/media/AudioRecord.h
eba51fb3a361f67a6a64d5a16eba6084fe27d60e 23-Jan-2012 Glenn Kasten <gkasten@google.com> Use audio_source_t consistently

Was a mix of audio_source_t, uint8_t, and int.

Related fixes:
- fix comments in MediaRecorder.java
- AudioPolicyService server side was not checking source parameter at
all, so if the client wrapper was bypassed, invalid values could be
passed into audio HAL
- JNI android_media_AudioRecord_setup was checking source for positive
values, but not negative values. This test is redundant, since already
checked at Java and now checked by AudioPolicyService also, but might
as well make it correct.

Change-Id: Ie5e25d646dcd59a86d7985aa46cfcb4a1ba64a4a
/frameworks/av/include/media/AudioRecord.h
58f30210ea540b6ce5aa6a46330cd3499483cb97 12-Jan-2012 Glenn Kasten <gkasten@google.com> Use audio_format_t consistently, continued

Was int or uint32_t.

When AudioFlinger::format can't determine the correct format,
return INVALID rather than DEFAULT.

Init mFormat to INVALID rather than DEFAULT in the constructor.
Subclass constructors will set mFormat to the correct value.

Change-Id: I9b62640aa107d24d2d27925f5563d0d7407d1b73
/frameworks/av/include/media/AudioRecord.h
a3f1fa308728976fc9ca1b4f37d26e633b32b9ac 18-Jan-2012 Glenn Kasten <gkasten@google.com> Fix incorrect includes of AudioTrack.h

Remove unnecessary includes of AudioTrack.h.
Use forward declaration of class names in preference to #include when possible.

Change-Id: I12982811fa75c2c7695d8bbfa595a7aaec047dc0
/frameworks/av/include/media/AudioRecord.h
b9980659501d0428d65d8292f3c32da69d37fbd2 11-Jan-2012 Glenn Kasten <gkasten@google.com> Use size_t for frame size

except in the control block, where we don't have room.

In AudioFlinger::ThreadBase::TrackBase::getBuffer,
read the frame size from control block only once.

Change-Id: Id6c4bccd4ed3e07d91df6bbea43bae45524f9f4e
/frameworks/av/include/media/AudioRecord.h
879135196fd1c97deefc538c888037c56c2879a7 23-Jun-2011 Glenn Kasten <gkasten@google.com> Bug 4903178 Restore priority and cgroup on stop

On AudioTrack and AudioRecord stop or failed start, restore the priority
and cgroup of the caller to their previous values, rather than forcing
to NORMAL. Dependent on new thread APIs.

Also fixes bug where priority was set to AUDIO but cgroup not set.

Change-Id: Ib83893918fb4fdf57c6b87884b51038997a631d8
/frameworks/av/include/media/AudioRecord.h
0d255b2d9061ba31f13ada3fc0f7e51916407176 25-May-2011 Jean-Michel Trivi <jmtrivi@google.com> Use channel mask instead of channel count for track creation

Record and playback objects (resp AudioRecord and AudioTrack)
are created using a channel mask, but this information is lost
in the mixer because only the channel count is known to
AudioFlinger. A channel count can always be derived from a
channel mask.

The change consists in:
- disambiguiting variable names for channel masks and counts
- passing the mask information from the client to AudioFlinger
and the mixer.
- when using the DIRECT ouput, only verifying the format of
the track is compatible with the output's for PCM.

Change-Id: I50d87bfb7d7afcabdf5f12d4ab75ef3a54132c0e
/frameworks/av/include/media/AudioRecord.h
64760240f931714858a59c1579f07264d7182ba2 11-May-2011 Dima Zavin <dima@android.com> update for new audio.h header location

Change-Id: Ic4c62c4037800802427eb7d3c7f5eb8b25d18876
Signed-off-by: Dima Zavin <dima@android.com>
/frameworks/av/include/media/AudioRecord.h
fce7a473248381cc83a01855f92581077d3c9ee2 20-Apr-2011 Dima Zavin <dima@android.com> audio/media: convert to using the audio HAL and new audio defs

Change-Id: Ibc637918637329e4f2b62f4ac7781102fbc269f5
Signed-off-by: Dima Zavin <dima@android.com>
/frameworks/av/include/media/AudioRecord.h
1703cdfee717b1b312bf8979816a9e2f16a82e5d 07-Mar-2011 Eric Laurent <elaurent@google.com> Fix issue 3439872: video chat and bluetooth SCO

This change fixes the stability problems experienced when using
a bluetooth headset supporting both A2DP and SCO. Problems occur
when starting the video chat at which time the A2DP output is being
stopped to start SCO. At that time, active AudioTracks are invalidated
by AudioFlinger so that a new AudioTrack binder interface can be
recreated by the client process on the new mixer thread with correct parameters.
The problem was that the process to restore the binder interface was not
protected against concurrent requests which caused 2 binder interfaces
to be created sometimes. This could lead to permanent client deadlock
if one of the client threads was waiting for a condition of the first
created binder interface while the second one was created (as the AudioFlinger
would only signal conditions on the last one created).
This concurrent request situation is more likely to happen when a client
uses the JAVA AudioTrack as the JNI implementation uses simultaneously the
native AudioTrack callback and write push mechanisms. By doing so, the code
that checks if the binder interface should be restored (in obtainBuffer()) is
much more likely to be called concurrently from two different threads.

The fix consists in protecting the critical binder interface restore phase
with a flag in the AudioTrack control block. The first thread acting upon the binder
interface restore request will raise the flag and the second thread will just wait for
a condition to be signaled when the restore process is complete.

Also protected all accesses to the AudioTrack control block by a mutex to prevent
access while the track is being destroyed and restored. If a mutex cannot be held
(e.g because we call a callback function), acquire a strong reference on the IAudioTrack
to prevent its destruction while the cblk is being accessed.

Modified AudioTrack JNI to use GetByteArrayElements() instead of
GetPrimitiveArrayCritical() when writing audio buffers. Entering a critical section would
cause the JNI to abort if a mediaserver crash occurs during a write due to the AudioSystem
callback being called during the critical section when media server process restarts.
Anyway with current JNI implementation, either versions do not copy data most of the times
and the criticial version does not guaranty no data copy.

The same modifications have been made to AudioRecord.

Change-Id: Idc5aa711a04c3eee180cdd03f44fe17f3c4dcb52
/frameworks/av/include/media/AudioRecord.h
f5aafb209d01ba2ab6cb55d1a12cfc653e2b4be0 18-Nov-2010 Eric Laurent <elaurent@google.com> Fix issue 3157123.

Use a Mutex wherever atomic operations were used in AudioTrack,
AudioRecord, AudioFlinger and AudioEffect classes.

Change-Id: I6f55b2cabdcd93d64ef19446735b8f33720f8dbc
/frameworks/av/include/media/AudioRecord.h
15304d601cbf83be6519ca53e1a26b97d50d0192 22-Jun-2010 Chia-chi Yeh <chiachi@android.com> media: add AudioRecord::getMinFrameCount().

Change-Id: I952071ab10aa49aa96b727d157b68470d69fff3d
/frameworks/av/include/media/AudioRecord.h
be916aa1267e2e6b1c148f51d11bcbbc79cb864c 02-Jun-2010 Eric Laurent <elaurent@google.com> Issue 2667801: [Audio Effect Framework] AudioFlinger, AudioMixer AudioTrack modifications.

First drop of audio framework modifications for audio effects support.

- AudioTrack/AudioRecord:
Added support for auxiliary effects in AudioTrack
Added support for audio sessions
Fixed left right channel inversion in setVolume()

- IAudioFlinger:
Added interface methods for effect enumeraiton and instantiation
Added support for audio sessions.

- IAudioTrack:
Added method to attach auxiliary effect.

- AudioFlinger
Created new classes to control effect engines in effect library and manage effect connections to tracks or
output mix:
EffectModule: wrapper object controlling the effect engine implementation in the effect library. There
is one EffectModule per instance of an effect in a given audio session
EffectChain: group of effects associated to one audio session. There is one EffectChain per audio session.
EffectChain for session 0 is for output mix effects, other chains are attached to audio tracks
with same session ID. Each chain contains a variable number of EffectModules
EffectHandle: implements the IEffect interface. There is one EffectHandle object for each application
controlling (or using) an effect module. THe EffectModule maintians a list of EffectHandles.

Added support for effect modules and effect chains creation in PlaybackThread.
modified mixer thread loop to allow track volume control by effect modules and call effect processing.

-AudioMixer
Each track now specifies its output buffer used by mixer for accumulation
Modified mixer process functions to process tracks by groups of tracks with same buffer
Modified track process functions to support accumulation to auxiliary channel

Change-Id: I26d5f7c9e070a89bdd383e1a659f8b7ca150379c
/frameworks/av/include/media/AudioRecord.h
05bca2fde53bfe3063d2a0a877f2b6bfdd6052cf 26-Feb-2010 Eric Laurent <elaurent@google.com> Issue 2071329: audio track is shorter than video track for video capture on sholes

Add API to retrieve number of frames dropped by audio input kernel driver.

Submitted on behalf of Masaki Sato <masaki.sato@motorola.com>
/frameworks/av/include/media/AudioRecord.h
6100d2d60517ff33ed8eb35d0b7ea63cde0831c9 19-Nov-2009 Eric Laurent <elaurent@google.com> Issue 2265163: Audio still reported routed through earpiece on sholes

This is a second attempt to fix the audio routed to earpiece syndrom.
The root cause identified this time is the crash of an application having an active AudioTrack playing on the VOICE_CALL stream type.
When this happens, the AudioTrack destructor is not called and the audio policy manager is not notified of the track stop.
Results a situation where the VOICE_CALL stream is considered as always in use by audio policy manager which makes that audio is routed to earpiece.

The fix consists in moving the track start/stop/close notification to audio policiy manager from AudioTrack to AudioFlinger Track objet.
The net result is that in the case of a client application crash, the AudioFlinger TrackHandle object (which implements the remote side of the IAudioTrack binder interface) destructor is called which in turn destroys the Track object and we can notify the audio policy manager of the track stop and removal.

The same modification is made for AudioRecord although no bug related to record has been reported yet.
Also fixed a potential problem if record stop is called while the record thread is exiting.
/frameworks/av/include/media/AudioRecord.h
34f1d8ecd23169a5f299937e3aaf1bd7937578a0 04-Nov-2009 Eric Laurent <elaurent@google.com> Fix issue 2203561: Sholes: audio playing out of earpiece.

Create a new IAudioTrack interface to AudioFlinger when start() fails due to a broken pipe error.
Do the same if start fails due to the same error after time out in obtainBuffer().
Do not indicate that the AudioTrack is started to AudioPolicyManager if IAudioTrack start fails.
This avoids that an AudioTrack keeps a dead IAudioTrack after a media server crash.

Same modifications for AudioRecord.

Add a flag to ToneGenerator indicating that the callback thread can call Java. Without it, when the media server crashes and restarts, the AudioSystem error callback will crash in JNI if the IAudiotrack is created from AudioTrack callback thread.
/frameworks/av/include/media/AudioRecord.h
c2f1f07084818942352c6bbfb36af9b6b330eb4e 17-Jul-2009 Eric Laurent <elaurent@google.com> Fix issue 1795088 Improve audio routing code

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()
/frameworks/av/include/media/AudioRecord.h
349dba337e07e129f6ba49a132999f0b73fedbe3 07-Jul-2009 Eric Laurent <elaurent@google.com> am 88e209dc: Fix issue 1743700: AudioTrack: setPlaybackRate can not set the playback rate to twice of the ouputSR

Merge commit '88e209dcf8c2ebddda5c272f46d1bd5478bc639c'

* commit '88e209dcf8c2ebddda5c272f46d1bd5478bc639c':
Fix issue 1743700: AudioTrack: setPlaybackRate can not set the playback rate to twice of the ouputSR
573266210fb2b2e7d86fbd46d0dfe16763611d91 07-Jul-2009 Eric Laurent <elaurent@google.com> 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.
/frameworks/av/include/media/AudioRecord.h
95634c8b6ad5419e310a5196bcc37f5988ed82da 26-May-2009 Android (Google) Code Review <android-gerrit@google.com> am de8268d6: Merge change 2331 into donut

Merge commit 'de8268d6d1cd168510c490b17e93154d2eab767c'

* commit 'de8268d6d1cd168510c490b17e93154d2eab767c':
Fix issue 1846343 - part 1
f5879c1448cc6aebc51b26d3ec2399d66144f8f4 22-May-2009 Eric Laurent <elaurent@google.com> Fix issue 1846343 - part 1

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.
/frameworks/av/include/media/AudioRecord.h
7562408b2261d38415453378b6188f74fda99d88 20-May-2009 Mathias Agopian <mathias@google.com> move libbinder's header files under includes/binder
/frameworks/av/include/media/AudioRecord.h
1dd70b9f04961a06fcb73a97fca10a53b3245d3c 21-Apr-2009 Eric Laurent <elaurent@google.com> Fix issue 1745312: Various cleanups in media framework

AudioTrack, AudioRecord:
- remove useless mAudioFlinger member of AudioTrack and AudioRecord.
- signal cblk.cv condition in stop() method to speed up stop completion.
- extend wait condition timeout in obtainBuffer() when waitCount is -1 to avoid waking up callback thread unnecessarily

AudioFlinger:
- remove some warnings in AudioFlinger.cpp.
- remove function AudioFlinger::MixerThread::removetrack_l() as its content is never executed.
- remove useless call to setMasterVolume in AudioFlinger::handleForcedSpeakerRoute().
- Offset VOICE_CALL stream volume to reflect actual volume that is never 0 in hardware (this fix has been made in the open source): 0.01 + v * 0.99.

AudioSystem.java:
- correct typo in comment

IAudioflinger, IAudioFlingerClient:
- make AudioFlinger binder interfaces used for callbacks ONEWAY.

AudioHardwareInterface:
- correct routeStrings[] table in AudioHardwareInteface.cpp
/frameworks/av/include/media/AudioRecord.h
7d563247cdac0509009d579bbf849157d47c38a9 25-Mar-2009 Jean-Michel Trivi <> Automated import from //branches/donutburger/...@141200,141200
/frameworks/av/include/media/AudioRecord.h
89fa4ad53f2f4d57adbc97ae1149fc00c9b6f3c5 04-Mar-2009 The Android Open Source Project <initial-contribution@android.com> auto import from //depot/cupcake/@135843
/frameworks/av/include/media/AudioRecord.h
15f767b960b38059a74a42a33e16d8df2aec8bc1 04-Mar-2009 The Android Open Source Project <initial-contribution@android.com> auto import from //depot/cupcake/@135843
/frameworks/av/include/media/AudioRecord.h
ad04d9201452001dbaac4349f084cc9316190b89 03-Mar-2009 The Android Open Source Project <initial-contribution@android.com> auto import from //depot/cupcake/@132589
/frameworks/av/include/media/AudioRecord.h
99ffda877980468a9ae31e013cd10fb3645df1b0 03-Mar-2009 The Android Open Source Project <initial-contribution@android.com> auto import from //depot/cupcake/@137055
/frameworks/av/include/media/AudioRecord.h
e5198b620a9a208ec59ea8457282404725f8ff6e 20-Jan-2009 The Android Open Source Project <initial-contribution@android.com> auto import from //branches/cupcake/...@127101
/frameworks/av/include/media/AudioRecord.h
7b5eb023f8d87cca6d830ae6c11c6aadbe02aca8 18-Dec-2008 The Android Open Source Project <initial-contribution@android.com> Code drop from //branches/cupcake/...@124589
/frameworks/av/include/media/AudioRecord.h
2729ea9262ca60d93047e984739887cfc89e82eb 21-Oct-2008 The Android Open Source Project <initial-contribution@android.com> Initial Contribution
/frameworks/av/include/media/AudioRecord.h