Thanks for the tip!
I dropped Caspar some time ago forma his intense sue of proprietary flash
technology.
I'll give him a new chance.
Thanks.
Il sab 31 mar 2018, 11:44 Mateusz Starzak <mstar...@gmail.com> ha scritto:
> Since there is a Linux version of CasparCG you could try that and see if
> it works for you. MLT is great for non linear editing but for live use
> cases Caspar is much easier to work with. If you don't mind conforming
> clips to your output timebase of course.
>
> 30.03.2018 19:36 "Federico Allegretti" <allegf...@gmail.com> napisał(a):
>
> Thanks Dan, maybe i solved this morning.
>
> I wasn't using MLT directly from a lot of time after switching to
> other projects that OTVA, so my memory lacks :D but i remember this
> morning the -profile directive ;-)
>
> seems that forcing the dv_pal solved the problems with those clips
> that before i cannot reproduce using mel command.
>
> So:
> ./melt -profile dv_pal -consumer decklink:0 test_clip1.mp4
> works well
>
> instead:
> ./melt -consumer decklink:0 test_clip1.mp4
> fires: [consumer decklink] Profile is not compatible with decklink.
>
> For me is ok, i solved. Hope this could hel otheres.
>
> PS: Dan, i always have to great you for the great job in MLT (and not only
> :-) )
>
>
> On 29 March 2018 at 19:43, Dan Dennedy <d...@dennedy.org> wrote:
> > On Thu, Mar 29, 2018 at 10:26 AM Federico Allegretti <
> allegf...@gmail.com>
> > wrote:
> >>
> >> hello.
> >>
> >> experiemnting with melt by command line.
> >>
> >> Trying to exit trough the deckink consumer like that:
> >> melt -consumer decklink file1 file2 file3 ...
> >>
> >> I forced the fact really hard i suppose, in fact some files are 1080,
> >> some 720, some SD and also i mixed 25fps and 30fps clips :D
> >>
> >> Seems decklink do not love this mess :D
> >>
> >
> > decklink consumer does not care about mixing the video attributes such as
> > this. melt will read the first file, get its attributes, and generate a
> > mlt_profile from them. Then, the decklink consumer must try to find one
> of
> > its preset video modes [1] that matches the profile. I do not know what
> > happened in your case, but it sounds like perhaps the match failed, and
> > decklink failed to initialize.
> >
> >>
> >> Is there a trick to "rescale" all of the incoming video iles to a
> >> common size/framerate?
> >
> >
> > Use the "-profile <profile_name>" option and choose a compatible profile
> > from the list reported by "melt -query profiles"
> >
> >>
> >>
> >> upscale to 1080 if HDMI selected trough blackmagic set util or
> >> downscale to SD if analog SD video output was set?
> >>
> >> I tried with resize e rescale filters .. but nothing changed.
> >
> >
> > Scaling is automatic to the profile. Everything is either scaled up or
> down,
> > preserving aspect ratio, and adding black bar padding where needed (no
> > cropping). If you want to center crop to remove black bars you can add
> > "-attach crop center=1" following every clip you want to apply it to. If
> you
> > want full control over scaling/pan/crop, you need to apply a filter such
> as
> > affine - see one of the GUI MLT apps for examples of usage.
> >
> >>
> >>
> >> PS: this set is know by the user and no need to detect it by system
> >> properties.
> >>
> >> Cheers,
> >>
> >> Federico
> >
> >
> >>
> >> --
> >> Open TV Architecture project: http://sourceforge.net/projects/otva/
> >>
> >> Messagenet VOIP: 5338759
> >>
> >> YouTube Channel: v1p3r's lab
> >>
> >> VIMEO HD videos: http://www.vimeo.com/user1912745/videos
> >>
> >>
> >>
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>
>
> --
> Open TV Architecture project: http://sourceforge.net/projects/otva/
>
> Messagenet VOIP: 5338759
>
> YouTube Channel: v1p3r's lab
>
> VIMEO HD videos: http://www.vimeo.com/user1912745/videos
>
>
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