Thread: VirtualDub2
View Single Post
Old 13th May 2019, 18:48   #846  |  Link
kolak
Registered User
 
Join Date: Nov 2004
Location: Poland
Posts: 2,843
Could we have ProRes presets updated so they better match official profiles (in this case ProRes_ks is better). It will be slower, but more Apple alike.

We need color tag as well, so parameters like this for ProRes HQ:

-metadata:s "encoder=Apple ProRes 422 (HQ)" -vendor apl0 -movflags write_colr -c:v prores_ks -flags "+bitexact"

Then also have interlaced box (+field order) to tick which adds:

-vf "setfield=1, fieldorder=tff" -top 1 -flags "+ildct+ilme+bitexact"

*tff or bff (and top 1 or 0)

This way we enforce proper interlaced encoding.

I'm not sure about this bit, but if you can set:
AVFormatContext.flags |= AVFMT_FLAG_BITEXACT.
kolak is offline   Reply With Quote