Android ICS AV Sync Issue (audio lags behind video) during audio rendering over Bluetooth A2DP headset

[shahed]

The issue started to show up in Android ics-mr1 branch with the introduction of the commit id 355afe9a49d429650c955894220caebc1db3b1cf in BlueZ tree (platform/external/bluetooth/bluez/). There is a good ~600 msec lag in the rendered audio in A2DP headset compared to the video. Anyone else noticed this issue in any of the latest Android ICS phones?

The root cause of the issue seems to be incorrect reporting of the A2DP HAL (android_audio_hw.c) latency to AudioFlinger. The following 'in progress' patch seems to make things better.

http://review.omapzoom.org/#/c/18912/ 

-Shahed

[Glenn Kasten]

Thanks for reporting this, tracking as ...9030