[mythtv-users] Playback Video Stutters & Audio Quits on one Frontend

[Stephen Worthington]

On Wed, 12 Aug 2020 13:47:04 -0500, you wrote:

>On Mon, Aug 10, 2020 at 4:39 AM John Pilkington <johnpilk222 at gmail.com>
>wrote:
>
>>
>> That's an intriguing idea, and as you say it could be decoder-dependent.
>>   But it might be worth looking at the audio readahead setting:
>>
>> Frontend setup > Video > Playback > Advanced Playback Settings >
>>    Audio read ahead (ms)
>>
>> "Increase this value if audio cuts out frequently....."
>>
>> Default is 100 ms.  On my GT 710 box it's at 400 ms.  I suppose I did that.
>>
>> John P
>>
>
>Using multiple steps, I tried using HandBrake to transcode the example
>video to h.264,  swapped the original file with the h.264 version, rebuilt
>the seek tables for the h.264 doppelganger, ran a full mythcommflag pass on
>it to detect commercial breaks, and changed audio from 5.2 to stereo.  None
>of these worked, but I did notice that the h.264 file was easily 1/3 the
>size of the original.  My conclusion is to just watch the troublesome
>recordings on the BE/FE and/or re-record them now that I'm using an
>(external) infiniTV 6 instead of a pair of PVR-500 cards.  Besides, if/when
>I break down and upgrade my MythTV version, things may clear up. ?
>
>In any case, a big thank you to all for the many suggestions.  They were
>all worth a try.

Running mythcommflag to re-do the commercial breaks does not rebuild
the seek table.  If you want to rebuild the seek table, which is what
works for me, you need to do "mythcommflag --rebuild", and then after
that if you want the commercial flagging, run mythcommflag again to do
that.