Hi there!
We made a question last week about how to achieve CSS effects in MLT.
We learnt that MLT has multitrack and managed to get a quite functional XML
file.
The problem we’ve encountered is that as soon as we switch from an Image
resource to a video (avformat), we have problems with transitions.
Are we violating something with the following schema?
Thank you in advance!!!
<mlt>
<profile colorspace="709" display_aspect_den="9" display_aspect_num="16"
frame_rate_den="1001" frame_rate_num="30000" height="1080" progressive="1"
sample_aspect_den="1" sample_aspect_num="1" width="1920"/>
<consumer ab="256k" acodec="aac" ar="48000" crf="18" f="mp4"
mlt_service="avformat" movflags="+faststart" preset="medium" real_time="-4"
target="/tmp/51772.mp4" threads="-4" tune="film" vcodec="libx264"/>
<producer id="id1">
<property name="mlt_service">qimage</property>
<property name="resource">atx.jpg</property>
</producer>
<producer id="id2">
<property name="mlt_service">qimage</property>
<property name="resource">atx.jpg</property>
<filter>
<property name="mlt_type">filter</property>
<property name="0">0.11</property>
<property name="mlt_service">frei0r.saturat0r</property>
</filter>
<filter>
<property name="mlt_type">filter</property>
<property name="mlt_service">frei0r.contrast0r</property>
<property name="Contrast">0=0.75</property>
</filter>
</producer>
<producer id="id2_filter">
<property name="mlt_service">pixbuf</property>
<property name="out">90.0</property>
<property name="resource">lofi.png</property>
<property name="in">0</property>
</producer>
<playlist id="playlist_id1" autoclose="1">
<blank length="0"/>
<entry producer="id1" in="0" out="90.0"/>
</playlist>
<playlist id="playlist_id2" autoclose="1">
<blank length="60.0"/>
<entry producer="id2" in="0" out="90.0"/>
</playlist>
<playlist id="playlist_id2_filter" autoclose="1">
<blank length="60.0"/>
<entry producer="id2_filter" in="0" out="90.0"/>
</playlist>
<playlist id="playlist_music"/>
<tractor>
<track producer="playlist_id1"/>
<multitrack>
<tractor>
<track producer="playlist_id2"/>
<track producer="playlist_id2_filter"/>
</tractor>
<transition>
<property name="mlt_type">transition</property>
<property name="a_track">0</property>
<property name="b_track">1</property>
<property name="mlt_service">frei0r.multiply</property>
</transition>
</multitrack>
<track producer="playlist_music"/>
<filter track="1">
<property name="mlt_type">filter</property>
<property name="0">0.11</property>
<property name="mlt_service">frei0r.saturat0r</property>
</filter>
<filter track="1">
<property name="mlt_type">filter</property>
<property name="mlt_service">frei0r.contrast0r</property>
<property name="Contrast">0=0.75</property>
</filter>
<transition in="60.0" out="90.0">
<property name="b_track">1</property>
<property name="mlt_service">luma</property>
<property name="a_track">0</property>
</transition>
<transition>
<property name="b_track">1</property>
<property name="mlt_service">mix</property>
<property name="a_track">0</property>
</transition>
</tractor>
</mlt>
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