[mythtv-users] H.264 Recorded TV Program Image

[jim]

>> I wonder if others are experiencing this same scenario?
>> When mythtv handles mpeg-2 encoded programs it appears to generate, or
>> grab, a single-frame for the user to see when browsing the recorded TV
>> programs. After a TV program has been transcoded to H.264 mythtv still
>> plays the program without issue, but the single frame is often scrambled
>> or nearly all  grey. If others have seen this too, does anyone know of a
>> way to achieve better results with the H.264 encoded programming? Thanks.
> That means you're grabbing the image from a non-keyframe so you only see 
> the differences from some other frame.  This is due to a bad seek table.
>
> For example, if you transcode and do not rebuild the seek table, you'd 
> get this issue.
>
> Or, if you transcode to MKV and do not clear the seek table (MKV should 
> not have MythTV seek tables), you'd get this issue.
>
> Mike

I stopped rebuilding the seek table and cleared the original one. The
grabbed image now appears without problem. Thanks for the accurate and
effective information, Mike!

Jim

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