[PATCH 1/6] mf/samplegrabber: Always release cancellation key when timer is invoked.

[Derek Lesho]

On 1/5/22 06:01, Nikolay Sivov wrote:

>
>
> On 1/4/22 20:35, Derek Lesho wrote:
>> The sample grabber currently leaks the key on the last invokation of 
>> the timer, as it is only released when stream_schedule_sample is called.
> It's also released when sample grabber sink is released. Is that not 
> always enough? Or is that useful when sink is reused for next topology?
>
>
The problem is that it introduces a circular dependency, the cancel key 
holds a reference to the timer callback, which contributes to the 
reference count of the sample grabber stream sink and media sink.