Michael Drons wrote:
>>> I think the issue is the byte offsets
>>> are different with these cards verse the type 9 cards.
>> I'll run additional queries if you want to explore this further.
> 
> I don't think these cards are used much anymore???
> I know mythtv devs had said in the past that type 7 cards are going away.

Could be. I plan to obsolete mine as soon as I start using my HDHR.

But I'm not sure I follow why this is card dependent. If we're talking 
differences in byte offsets (wouldn't it actually be frame offsets?) 
within the video file, then the dependency should be on the file format, 
not the card.

This type of card relies on MythTV to encode the video, of which 0.21 
provides two choices - RTJpeg or MPEG4 (I'm currently using the latter). 
  I could see the offsets varying depending on which of those two codecs 
are chosen. (Though I'd still expect frames to be frames. Unless the 
offsets are time offsets, and the complexity is in calculating how to 
translate a time offset to a frame offset for a given codec?)

Are all cards that require MythTV to perform the encoding type 7 cards?

In any case, as I'm transcoding these videos to MPEG2 before attempting 
to use mvpmc's commercial skip on them, I wonder if a post-transcode 
database tweak could clear up the problem. If I understood better what 
the query was attempting to accomplish, I could probably add something 
to my transcode script to fix up the database. (I can rerun commflagging 
post-transcode too. I've tried that before, but it had no effect on 
mvpmc. Given the query, I understand why.)

  -Tom


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