On Fri, Oct 9, 2020 at 5:22 PM amindfv--- via Mlt-devel <
mlt-devel@lists.sourceforge.net> wrote:

> In src/modules/xml/mlt-xml.dtd, playlists are described as having at least
> 1 item in them (because of the '+' at the end):
>
>     <!ELEMENT playlist (property*,(entry | blank | producer | playlist |
> tractor | multitrack)+) >
>
> However, by default kdenlive generates empty tracks, creating technically
> non-standard XML, e.g.:
>
>     <playlist id="playlist1">
>      <property name="kdenlive:audio_track">1</property>
>      <property name="kdenlive:track_name">Audio 2</property>
>     </playlist>
>     <playlist id="playlist2">
>      <property name="kdenlive:audio_track">1</property>
>      <property name="kdenlive:track_name">Audio 1</property>
>     </playlist>
>     <playlist id="playlist3">
>      <property name="kdenlive:track_name">Video 1</property>
>     </playlist>
>
> Any objections to changing the '+' to a '*' on this line of the DTD, thus
> supporting empty playlists?
>

No objection. Please submit pull request.
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