On 12/29/2020 04:04 AM, Paul B Mahol wrote:
On Tue, Dec 29, 2020 at 9:56 AM Mark Filipak (ffmpeg) <markfili...@bog.us>
wrote:
On 12/29/2020 03:41 AM, Paul B Mahol wrote:
On Tue, Dec 29, 2020 at 5:51 AM Mark Filipak (ffmpeg) <
markfili...@bog.us>
wrote:
I seek a way to do simple bob (i.e. repeat fields at 2xFPS) with no
other
filtering. Can you help me?
I suppose I could do something like this:
-filter_complex
"split[s1][s2],[s1]separatefields[A1][a1],[s2]separatefields[A2][a2],[A1][A2]weave[Ao],[a1][a2]weave[ao],[Ao][ao]merge"
(Kindly forgive any mistakes -- I haven't done anything like this in a
couple of months.)
But I thought I'd ask here for an easier way.
These gave pretty good results. They're listed from best to worst:
bwdif
yadif=send_field_nospatial
yadif=send_field
However, I suspect that, in addition to mechanical frame changes,
they're
also making some
(unwanted) cosmetic changes.
Based on what's written in the documention, these seemed promising:
separatefields,doubleweave
separatefields,tinterlace=mergex2
But they produced surprising and undesired results.
Optional Reading:
I also tried this:
separatefields,select=eq(mod(n,4),0)+eq(mod(n,4),3),weave
It's not what I actually want, but I tried it because it doesn't make
sense to me -- weave together
fields N%4==0 and N%4==3? (Really? Modulo-4? fields 0 & 3?) -- so,
because
it doesn't make sense to
me, I thought I might learn something interesting. So, what happened?
"Conversion failed!" is what
happened. Why it's cited as an example (
https://ffmpeg.org/ffmpeg-filters.html#Examples-121) in the
documentation is a mystery to me.
After so much time you still struggle a lot, buy some GUI tools and be
happy ever after.
You're not helping, Paul.
I'm helping you so you can help yourself.
You probably missing \ to escape every , inside expressions.
I'm running in Windows.
That is not important. Either escape ',' inside expressions or do not ask
for help if you gonna ignore help.
Ah! "inside expressions". Sorry. Yes, I '\,' inside expressions. I'm not using
any expressions.
_______________________________________________
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-user
To unsubscribe, visit link above, or email
ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
