[mythtv-users] Request for help making live TV useable

Mark Lord mythtv at rtr.ca
Thu Apr 21 13:18:58 UTC 2011

On 11-04-21 04:47 AM, warpme wrote:
>> However.. I also noticed a bunch of decoder fixes in trunk,
>> dealing with calculating the number of buffers needed,
>> and fixing bugs where buffers were being recycled while
>> still in use and so on.
>> So I backported those as well to 0.24-fixes. This seems to have made
>> a noticeable improvement in my PVR-250 LiveTV channel changes.
>> I can now often change channels 8-10 times without locking up,
>> whereas normally only (exactly) three channel changes were needed before. 
> Hi,
> May You post here list of backported commits. 
> I have quite similar problems to Yours and want to try backport and see how it helps in my case.

I began with this commit from tralph:


and then added a few follow-on commits from  mark-kendall:


And finally the commit that eliminates any need to set vdpaubuffersize=
in the playback profiles:


Those did not all apply cleanly to 0.24-fixes, so a bit of work was required
to get them to play nicely.

Oh and there was one other commit in there somewhere to initialize
the vdpau surface states or something --> that one gets rid of the corrupted
screen backgrounds after a mythfrontend crash.

Anyway, the patch files that work for me are now on my server
at http://rtr.ca/mythtv_patches/  --> patches 40 through 45.

They probably will apply cleanly to any mythtv-0.24-fixes base,
but there might be a mismatch or two due to other patches
(not yet made available) which I may have applied underneath it all.


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