hi geoffroy, you can set transparent to 1 for the producer. then it treats no background as a transparent background ( usually white in a browser ) and you can also use css opacity or rgba
you could also try setting in and out values for the filter. happy 2015 stefan On Wed, Dec 31, 2014 at 12:26 AM, Geoffroy Montel <geoffroy.montel...@gmail.com> wrote: > Dear all > > Thanks to your help I got webvfx running. > > Now I'm trying to add a webvfx title to my video at some point in the video, > overlaid on top of the video. > > If I'm using webvfx as a filter, the title is overlaid on top of the video, > that's great > > <mlt LC_NUMERIC="en_US.UTF-8"> > <producer id="0"> > <property name="resource">video.mp4</property> > </producer> > <tractor> > <multitrack> > <tractor> > <multitrack> > <tractor> > <playlist> > <entry producer="0" in="0" out="240"> > <filter> > <property name="mlt_service">webvfx</property> > <property name="resource">plain:index.html</property> > </filter> > </entry> > </playlist> > </tractor> > </multitrack> > </tractor> > </multitrack> > </tractor> > </mlt> > > But now I'm trying to add webvfx as a producer, to add the title over the > video one second after the video has started. > It does not work, the video disappears when the title appears, it looks like > the alpha channel is not taken into account . > > <mlt LC_NUMERIC="en_US.UTF-8"> > <producer id="1"> > <property name="resource">video.mp4</property> > </producer> > <producer id="2"> > <property name="mlt_service">webvfx</property> > <property name="resource">plain:index.html</property> > </producer> > <tractor> > <multitrack> > <tractor> > <multitrack> > <tractor> > <playlist> > <entry producer="1" in="0" out="125"> > </entry> > </playlist> > </tractor> > </multitrack> > </tractor> > <tractor> > <multitrack> > <tractor> > <playlist> > <blank length="25"/> > <entry producer="2" in="0" out="100"> > </entry> > </playlist> > </tractor> > </multitrack> > </tractor> > <tractor> > <playlist> > </playlist> > </tractor> > </multitrack> > <transition id="composite" in="0" out="125"> > <property name="a_track">0</property> > <property name="b_track">1</property> > <property name="mlt_service">frei0r.composition</property> > </transition> > </tractor> > </mlt> > > So I have two questions : > - is there any way to have some alpha channel when using webvfx as a > producer > - or is there any way to add a filter only on a portion (in / end) of a > track ? > > Thanks again, and have a nice New Year's Eve ! > > Best regards > > Geoffroy > > > ------------------------------------------------------------------------------ > Dive into the World of Parallel Programming! The Go Parallel Website, > sponsored by Intel and developed in partnership with Slashdot Media, is your > hub for all things parallel software development, from weekly thought > leadership blogs to news, videos, case studies, tutorials and more. Take a > look and join the conversation now. http://goparallel.sourceforge.net > _______________________________________________ > Mlt-devel mailing list > Mlt-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/mlt-devel > ------------------------------------------------------------------------------ Dive into the World of Parallel Programming! The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net _______________________________________________ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
