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| author | John Grossman <johngro@google.com> | 2011-08-29 10:56:08 -0700 |
|---|---|---|
| committer | Mike Lockwood <lockwood@android.com> | 2011-10-27 17:35:47 -0400 |
| commit | 5b71e6fd76fe244719cb5a3f9ac24572acd9a3ca (patch) | |
| tree | dd5037d1baa012ac981b89a2a9a900f933edf960 /include | |
| parent | 617c80a82e5620b2f16348e4bd3d7fc3b76e9021 (diff) | |
| download | hardware_libhardware_legacy-5b71e6fd76fe244719cb5a3f9ac24572acd9a3ca.zip hardware_libhardware_legacy-5b71e6fd76fe244719cb5a3f9ac24572acd9a3ca.tar.gz hardware_libhardware_legacy-5b71e6fd76fe244719cb5a3f9ac24572acd9a3ca.tar.bz2 | |
Add an implementation of get_next_write_timestamp.
Add a default implementation of get_next_write_timestamp to the C <--> C++
legacy audio HAL implementation allowing HALs using the legacy C++
AudioStreamOut to overload and implement get_next_write_timestamp. Default
implementation returns INVALID_OPERATION to indicate that the functionality is
not supported.
Change-Id: I087347649e9ba186a74cb34aaadf989bf90720fe
Diffstat (limited to 'include')
| -rw-r--r-- | include/hardware_legacy/AudioHardwareInterface.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/hardware_legacy/AudioHardwareInterface.h b/include/hardware_legacy/AudioHardwareInterface.h index 425b0a5..87f933c 100644 --- a/include/hardware_legacy/AudioHardwareInterface.h +++ b/include/hardware_legacy/AudioHardwareInterface.h @@ -109,6 +109,13 @@ public: // return the number of audio frames written by the audio dsp to DAC since // the output has exited standby virtual status_t getRenderPosition(uint32_t *dspFrames) = 0; + + /** + * get the local time at which the next write to the audio driver will be + * presented + */ + virtual status_t getNextWriteTimestamp(int64_t *timestamp); + }; /** |