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H.264 Export Issue
Hi Guys
Ok this follows on the thread I posted earlier this morning….
I have a DVPAL timeline Edited…. I want to export as H.264 PAL 720 x 576
The Field dominance is Automatically LOWER !I export the file but when I bring it back into FCP to view the file properties in FCP’s Browser, it has changed the dominance to UPPER ????
Am I missing something here. The file is intended for TX on PAL with Lower dominance ….
WHY would FCP change it to UPPER
I checked my sequence setting and its LOWER !
Any pointers here
Thnx
William Granzier
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4 Replies
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The reason is that DV based codecs are the only ones with lower field dominance. So when you tanscode to H264 it is no longer DV which is why when you bring and H264 Quicktime into FCP it is not lower field dominant.
Where are you submitting an H264 file for TX – are you UK based ?best wishes
Neil
http://www.patience.tv -
Hi Neil
We are based in SA its all work for Supersport.
I have a quick question…. So basically when you export H.264 from a DV PAL time line it changes the dominance from lower to upper ??
As you have to indicate the field dominance on the Final Control sheet for TX , it would be UPPER then … as FCP sees it not LOWER as indicated when you export !
Sorry this can get quite interesting. We used to send them MOV’s . But they have now requested H.264
Thnx
WIlliam Granzier
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Certainly FCP will usually recognise all codecs except DV based ones as upper field dominant and that is correct. DV is the only codec that is lower field dominant.
For instance, if you were to edit a DV file into a ProRes sequence then the field dominance would be reversed and it would become upper field dominant. I believe the same is true of H264 or indeed any other non DV based codec.
best wishes
Neil
http://www.patience.tv -
Thank you so much for your input…… Valuable indeed
I appreciate ur insight !
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