[mythtv-users] Forward / back jump problems with 20130308 build of 0.26

[Michael T. Dean]

On 03/17/2013 04:51 PM, Peter Bennett (cats22) wrote:
> On 03/17/2013 03:12 PM, HP-mini wrote:
>> On Sat, 2013-03-16 at 11:32 -0400, Peter Bennett (cats22) wrote:
>>> I recently upgraded from mythtv_0.26.0+fixes.20130131.28144cd to
>>> mythtv_0.26.0+fixes.20130308.77259c5.
>>>
>>> During playback now I find that jump forward 1 minute and jump back 10
>>> seconds (left and right arrow) do not work well. Sometimes after
>>> pressing left or right arrow, the playback freezes for 5 or 10 seconds
>>> before resuming at the new place. This happens on two frontends, and
>>> never happened before. Is there a regression in this version?
>> What format are your recordings ?
>> mpeg2 video or H264?
>> If H264, is this broadcast AVC or HD-PVR IDR type H264?
>>
>> Does the problem go away if you rebuild the seektable with mythcommflag
>> --rebuild...?
>>
>>
> This happens on 1080i mpeg2 video recordings from DVB or firewire.
> On recordings that I have transcoded from mpeg2 to H264 mkv files, there
> is a slightly different symptom. Jump forward sometimes causes the
> playback to jump backwards 5 or 10 minutes. This also never happened
> before. This seems to only affect transcoded 720p recordings. Transcoded
> 1080p recordings seem to be OK.
>
> I have not tried rebuilding the seektable. However it is happening on
> new recordings that were made after the upgrade, so if some seektable
> algorithm changed, at least I would expect the new recordings should be
> correct.

Step 1, run optimize_mythdb.pl .  Then, if new recordings work, step 2, 
rebuild the seek table for all "broken" recordings.

Mike