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

Taylor Ralph taylor.ralph at gmail.com
Thu Apr 21 16:15:58 UTC 2011

On Thu, Apr 21, 2011 at 10:31 AM, Taylor Ralph <taylor.ralph at gmail.com> wrote:
> On Thu, Apr 21, 2011 at 9:18 AM, Mark Lord <mythtv at rtr.ca> wrote:
>> 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:
>> https://github.com/MythTV/mythtv/commit/f8c108ef9a5c6bac9ec2414c47e2f404047e43b9
>> and then added a few follow-on commits from  mark-kendall:
>> https://github.com/MythTV/mythtv/commit/f54bfcb57dc26cc3a084be8fbed4bc4620726b1b
>> https://github.com/MythTV/mythtv/commit/f2713206d10b3ce3198bf4bb40cb60206a36c3d8
>> https://github.com/MythTV/mythtv/commit/bd7d2da5b17cdf15c51828548080633be948c79b
>> https://github.com/MythTV/mythtv/commit/7d302773791cc8e5d31500143549e25a3ab591fc
>> And finally the commit that eliminates any need to set vdpaubuffersize=
>> in the playback profiles:
>> https://github.com/MythTV/mythtv/commit/5e04d57bc87a6f422ccba79a493bebef50566162
>> 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.
>> Cheers
> You might want to add this to your back-port recipe as it directly
> impacts channel changing:
> https://github.com/MythTV/mythtv/commit/4693357f1

Nevermind, that was already back-ported to 0.24/fixes.


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