Hi,
I would like to suggest that you add a field order
function, that will indicate the file's field order,
much like the function
int dv_is_progressive (dv_decoder_t *dv);
The method might be
int dv_field_order(dv_decoder_t *dv);
return values:
-1: unknown
0: progressive
1: lower field first
2: upper field first
Thanks,
Jamie Strachan.