[mythtv-users] mythcommflag prob (was How to transcode HD recording)

[John Pilkington]

On 29/01/14 15:08, mythtv at phipps-hutton.freeserve.co.uk wrote:
> Quoting John Pilkington <J.Pilk at tesco.net>:
>> On 23/01/14 06:19, HP-mini wrote:
>>> The patch just flips around the keyframe search order in
>>> avformatdecoder.. The other changes are mostly just cleanup.
>>
>> Noted, thanks,  I'll try a new build.
>>
>> It's perhaps worth noting that the short seektable appears to do
>> adequately its main job of controlling skips.  It just doesn't find
>> all potential cutpoints....
>>
>
> Just a me too. Prior to the patch I had 3400 keyframes in the filemarkup
> table for a 2 hour film. After the patch it went to 8800. I'm happy for
> the patch to go in but I only ever run mythcommflag on H.264 material
> that is recorded from DVB-T2 and copied to mythvideo. There are
> obviously lots of ways of getting H.264 material into mythvideo so the
> patch may not be suitable in the general case. Perhaps an option to
> mythcommflag would work?
>
> Cheers,
> Tim.

In principle perhaps the identification of nearby keyframes could be 
done by the editor;  but I don't expect to be  trying to code that :-)