I was expecting a rotated image. The output was the video unmodified.
El jue, 30 dic 2021 a las 19:52, Brian Matherly (<brian.mathe...@yahoo.com>)
escribió:
> > My first attempt wasn't very successful
>
> What result did you expect, and what was the actual result?
>
> On Thursday, December 30, 2021, 12:28:42 PM CST, José María García Pérez <
> josemaria.alk...@gmail.com> wrote:
>
>
> I wasn't aware about Shotcut doing so. Good to know.
>
> My first attempt wasn't very successful. I did the following:
> # nim c --threads:on -r ex23_loader_video
> import mlt
> import os
> let f = initFactory("/usr/lib/mlt-7")
>
> # Create the consumer
> let p = newProfile("hdv_720_50p")
> var sdl = newFactoryConsumer(p, "sdl2")
>
> sdl["terminate_on_pause"] = 1 # Stop the consumer when finished
>
> # Create via the default producer
> var clip1 = p.newMedia( "./resources/sygic.mp4")
>
>
> var filter = newFactoryFilter(p, "affine")
> filter["transition.fill"] = 1
> filter["transition.distort"] = 0
> filter["transition.rect"] = "339.703 126.468 1430.3 953.532 1"
> filter["transition.valign"] = "middle"
> filter["transition.halign"] = "center"
> filter["transition.threads"] = 0
> filter["transition.fix_rotate_x"] = 340.0
>
> #[
> <property name="background">color:#00000000</property>
> <property name="mlt_service">affine</property>
> <property name="shotcut:filter">affineSizePosition</property>
> <property name="transition.fill">1</property>
> <property name="transition.distort">0</property>
> <property name="transition.rect">339.703 126.468 1430.3 953.532
> 1</property>
> <property name="transition.valign">middle</property>
> <property name="transition.halign">center</property>
> <property name="shotcut:animIn">00:00:00.000</property>
> <property name="shotcut:animOut">00:00:00.000</property>
> <property name="transition.threads">0</property>
> <property name="transition.fix_rotate_x">340.304</property>
>
> ]#
> clip1.attach(filter)
> clip1 > sdl
>
> sdl.start # Start the consumer
>
> while not sdl.stopped:
> sleep(1)
>
> Do you spot something obvious that might be wrong?
>
> El jue, 30 dic 2021 a las 18:52, Dan Dennedy (<d...@dennedy.org>) escribió:
>
> You can use a tool like Shotcut and study it’s XML output to understand
> the properties for a filter. The affine filter is called Size, Position &
> Rotate. To get the XML use File > Save.
>
> On Thu, Dec 30, 2021 at 9:47 AM José María García Pérez <
> josemaria.alk...@gmail.com> wrote:
>
> I don't understand how to use the affine filter:
> https://www.mltframework.org/plugins/FilterAffine/#transition
>
> Could you post a basic C example using it? It would be nice to cover both
> the static and an animation case.
>
> I had the following example about using a filter using Nim:
> import mlt, os
> var f = initFactory()
>
> # Create the default consumer
> var p = newProfile()
> var sdl = newFactoryConsumer(p, "sdl2")
>
> # Create via the default producer
> var clip = newFactoryProducer(p, resource =
> "avformat:/home/jose/Descargas/sygic.mp4")
>
> var filter = newFactoryFilter(p, "frei0r.pixeliz0r")
> filter["BlockSizeX"] = 0.1
> filter["BlockSizeY"] = 0.2
>
> clip.attach( filter )
> clip > sdl
>
> # Start the consumer
> sdl.start
>
> while not sdl.stopped:
> sleep(1)
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