When the AudioTrack callback notification size is relatively high (Which is the case on Sholes and over A2DP), it is likely that the end of tone is reached during the first callback. In this case, the AudioTrack is stopped before exiting the callback which causes 2 problems:
- 1: If the AudioFlinger thread is scheduled before we exit the ToneGenerator callback, the track can be stopped and reset before the data is actually marked as present in the buffer by the AudioTrack callback => no audio will be processed by AudioFlinger.
- 2: In this case, the data write index in the AudioTrack buffer is incremented after the track was reset by the AudioFlinger which leaves unplayed data in the buffer. This data will be played the next time the AudioTrack is started if not flushed in between.
The fix consists in adding an intermediate state to ToneGenerator state machine so that we exit the callback function when the stop condition is reached and stop the AudioTrack the next time we execute the callback.
a new method, compostionComplete() is added to the framebuffer hal, it is used by surfaceflinger to signal the driver that the composition is complete, BEFORE it releases its client. This gives a chance to the driver to
This implements support for devices whose hardware can hide
their navigation keys. It works much like the existing keyboardHidden
configuration, and for compatibility uses the same configuration
change bit.
Also add FLAG_TURN_ON_SCREEN for windows, which has the system
cause the screen to be turned on when the window is displayed.
Great fun when used with FLAG_SHOW_WHEN_LOCKED!
Change-Id: I0b867f19af85cfd8786a14cea194b34f7bdd9b7a
Take 2. We needed to check that the usage flags are "good enough" as opposed to "the same".
This reverts commit 8f17a762fe9e9f31e4e86cb60ff2bfb6b10fdee6.
This api allows to instantiate a renderer by specifying the hosting java Surface object. This hides the implementation details of (java-)Surface, (native-)Surface and friends.
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.
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
* changes:
When encountering a .nomedia file, notify the MediaScannerClient, so that it can erase the data column for entries that are in the folder containing the .nomedia file. This prevents us from deleting (via a delete trigger) files when somebody adds a .nomedia file after the fact.
so that it can erase the data column for entries that are in the
folder containing the .nomedia file. This prevents us from
deleting (via a delete trigger) files when somebody adds a
.nomedia file after the fact.
commit c45bfbb97ccd05982008df47181f9c73abaf0497
Author: Andreas Huber <andih@google.com>
Date: Tue Sep 1 15:58:12 2009 -0700
This quirk should not be enabled by default in order to make the bug reproducible by the vendor.
commit 21d72e80e795fcae53d9c3bcc8ba6312b081e420
Author: Andreas Huber <andih@google.com>
Date: Tue Sep 1 15:55:45 2009 -0700
Undoing the hack to temporarily give up the lock to facilitate reading from the buffer source.
This simply causes too many issues, there need to be independent threads providing input buffers and dequeuing output buffers.
commit 84d507def8999c146ce124cc8edfe106c9ca70c2
Author: Andreas Huber <andih@google.com>
Date: Tue Sep 1 15:16:23 2009 -0700
The AAC components appear to output stereo data even if the input data is mono...
commit 3fa5f3ce910f34da0cedb8bcce1bd593db7eb740
Author: Andreas Huber <andih@google.com>
Date: Thu Aug 27 14:48:54 2009 -0700
Getting rid of more code now obsolete with the departure of OMXDecoder.
commit e0d923ec0c7bb60bec8eb97739036a4c70c0feef
Author: Andreas Huber <andih@google.com>
Date: Thu Aug 27 14:33:06 2009 -0700
Remove obsoleted OMXDecoder class. OMXDecoder is dead, long live OMXCodec.
