You've probably found a bug in that particular ALOG_ASSERT condition ... 
it's likely that this assert condition has not been tested recently.
For reference, what is the Gerrit project name (e.g. frameworks/av or 
frameworks/base) and the commit SHA that you're using?

If you have a fix, can you please upload to AOSP -- see 
http://source.android.com/source/submit-patches.html
(unfortunately we're not allowed to accept patches here by email, as we 
need contributors to fill out the contributor agreement first).
Thanks

On Friday, February 15, 2013 3:07:07 PM UTC-8, Uday Gupta wrote:
>
> We are seeing a crash in Audio Flinger at ALOG_ASSERT(minFrames <= 
> cblk->frameCount); when running SprinkleFree APK (the APP is available at 
> Google play store). We have logs enabled in Audio Flinger. If the logs are 
> disabled then there is no crash and APP still runs fine.
>
>  
>
> To produce the issue:
>
> 1.      Launch APP.
>
> 2.      Go to Level 1.
>
> 3.      On the left side there is a water hose. Move it up and down.
>
>  
>
> During step 3 the application is dynamically changing the sampling rate of 
> the track and at some point the ASSERT condition is hit. Should 
> cblk->frameCount take into account the changing sampling rate when doing 
> the condition check for the assertion.
>  
> Please see this issue will not be seen on release builds or if the logs 
> are not enabled in AudioFlinger as ALOG_ASSERT is void for these cases.
>  
>
> Below is one snapshot of assertion. Track was created with 44.1k sampling 
> rate and audio HAL sampling rate is also 44.1k
>
>  
>
> 02-14 14:39:59.451: E/AudioTrack(1127): setSampleRate = 47451
>
> 02-14 14:39:59.461: E/AudioFlinger(1311):  t->sampleRate = 47451, 
> minFrames = 2205 track->name() = 4100
>
> 02-14 14:39:59.461: E/AudioFlinger(1311): mNormalFrameCount = 2048, 
> getUnreleasedFrames = 2070
>
> 02-14 14:39:59.461: E/AudioFlinger(1311): after minFrames = 4275 
> cblk->frameCount = 4096
>
> 02-14 14:39:59.461: A/AudioFlinger(1311): Assertion failed: !(minFrames <= 
> cblk->frameCount)
>

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