[mythtv] file length wrong

[Craig Longman]

i'm converting files from a pvr-250 to mpeg-4, using the existing code 
in NuppleVideoPlayer::ReencodeFile().  it uses 
NuppleVideoRecorder::WriteVideo() to write the video frames.  i noticed 
though that WriteVideo() always refers to the frame number shifted one 
bit right.  is that because its assuming that it is actually only 
writing a field of information, not a frame?  everywhere it refers to 
frame number, it seems to do this, and i notice that my transcoded files 
show up as pretty much half as long as the should be.

now, the next question.  can anyone see any problems if i just double up 
the frame number i send to WriteVideo()?  i don't think it will screw 
anything up, most really critical things appear to be purely timecode 
oriented, and that will not change.  and the dropped frame (or rather, 
field) check should be ok, as it too shifts right by 1.

does this explanation sound reasonable?  any comments?

cheers,

    CraigL->Thx();