[mythtv-users] [Solved] Live TV: Too fast now ?

[Roger Siddons]

On Thu, 21 Aug 2014 13:56:59 +0100, Jean-Yves Avenard  
<jyavenard at gmail.com> wrote:

> Hi
>
> On 18 August 2014 01:11, Roger Siddons <dizygotheca at ntlworld.com> wrote:
>>
>> 1. When starting Live TV it fails 60% of the time - "Could not open  
>> decoder"
>>
>> 2. When it works, switching tuner source fails 90% of the time.  
>> Although a
>> feature of minor importance, I find it useful for checking all tuners  
>> are
>> working properly.
>
> A quick note to say that the issue was identified. Great thanks to
> Roger for pinpointing the problem.
>
> JY

To be pedantic, I only investigated & demonstrated the issue - JYA  
'pinpointed' the underlying cause.

We've identified a bug that's been in the ringbuffer for the past 4 years.  
This creates a race condition that can cause LiveTV to fail on startup or  
changing channels/inputs.

JYA's recent improvements have speeded up LiveTV, which has made it more  
likely to occur on affected systems. However it may also account for any  
LiveTV flakiness in 0.24, 0.25 & 0.26 as well.

JYA has put fixes into master & fixes/0.27 today.