Hi,
i did a tests to define how many "layers" can be played and found that
dropped frames start appear on 5th PNG layer over DV track
mlt file attached.
so the question is how many layers could be played on top or generic
hardware?
--
________________________________________
Maksym Veremeyenko
<?xml version="1.0" ?>
<mlt>
<profile description="DV/DVD PAL" display_aspect_den="3" display_aspect_num="4" frame_rate_den="1" frame_rate_num="25" height="576" progressive="0" sample_aspect_den="15" sample_aspect_num="16" width="720"/>
<tractor id="tractor0">
<multitrack>
<playlist id="Background Track">
<producer id="1fd2a31a-3d3a-11e1-bac8-080027013906" in="0.0" novdpau="1" out="503.0">
<property name="mlt_service">color</property>
</producer>
</playlist>
<playlist id="Track 1">
<producer id="a5142e62-3d36-11e1-bac8-080027013906" in="0.0" novdpau="1" out="499.0">
<property name="resource">test_video.dv</property>
</producer>
</playlist>
<playlist id="Track 2">
<producer id="c5bf5b1e-3d36-11e1-bac8-080027013906" in="0.0" novdpau="1" out="496.0">
<property name="resource">test_image_01.png</property>
</producer>
</playlist>
<playlist id="Track 3">
<producer id="eb3d6570-3d36-11e1-bac8-080027013906" in="0.0" novdpau="1" out="494.0">
<property name="resource">test_image_02.png</property>
</producer>
</playlist>
<playlist id="Track 4">
<producer id="ecfd6842-3d36-11e1-bac8-080027013906" in="0.0" novdpau="1" out="492.0">
<property name="resource">test_image_03.png</property>
</producer>
</playlist>
<playlist id="Track 5">
<producer id="f1d828a2-3d36-11e1-bac8-080027013906" in="0.0" novdpau="1" out="494.0">
<property name="resource">test_image_04.png</property>
</producer>
</playlist>
<playlist id="Track 6">
</playlist>
<playlist id="Track 7">
</playlist>
<playlist id="Track 8">
</playlist>
<playlist id="Track 9">
</playlist>
<playlist id="Track 10">
</playlist>
<playlist id="Track 11">
</playlist>
</multitrack>
<filter gain="1" in="0.0" mlt_service="volume" out="499.0" track="1"/>
<transition in="0.0" out="499.0">
<property name="mlt_service">composite</property>
<property name="a_track">0</property>
<property name="b_track">1</property>
<property name="progressive">1</property>
<property name="geometry">0=0%,0%:100%x100%:100; -1=0%,0%:100%x100%:100; </property>
<property name="halign">centre</property>
<property name="valign">centre</property>
<property name="distort">0</property>
<property name="fill">1</property>
</transition>
<transition in="0.0" out="499.0">
<property name="mlt_service">mix</property>
<property name="a_track">0</property>
<property name="b_track">1</property>
<property name="combine">1</property>
<property name="always_active">1</property>
</transition>
<transition in="0.0" out="496.0">
<property name="mlt_service">composite</property>
<property name="a_track">0</property>
<property name="b_track">2</property>
<property name="progressive">1</property>
<property name="geometry">0=0%,0%:100%x100%:100; -1=0%,0%:100%x100%:100; </property>
<property name="halign">centre</property>
<property name="valign">centre</property>
<property name="distort">0</property>
<property name="fill">1</property>
</transition>
<transition in="0.0" out="494.0">
<property name="mlt_service">composite</property>
<property name="a_track">0</property>
<property name="b_track">3</property>
<property name="progressive">1</property>
<property name="geometry">0=0%,0%:100%x100%:100; -1=0%,0%:100%x100%:100; </property>
<property name="halign">centre</property>
<property name="valign">centre</property>
<property name="distort">0</property>
<property name="fill">1</property>
</transition>
<transition in="0.0" out="492.0">
<property name="mlt_service">composite</property>
<property name="a_track">0</property>
<property name="b_track">4</property>
<property name="progressive">1</property>
<property name="geometry">0=0%,0%:100%x100%:100; -1=0%,0%:100%x100%:100; </property>
<property name="halign">centre</property>
<property name="valign">centre</property>
<property name="distort">0</property>
<property name="fill">1</property>
</transition>
<transition in="0.0" out="494.0">
<property name="mlt_service">composite</property>
<property name="a_track">0</property>
<property name="b_track">5</property>
<property name="progressive">1</property>
<property name="geometry">0=0%,0%:100%x100%:100; -1=0%,0%:100%x100%:100; </property>
<property name="halign">centre</property>
<property name="valign">centre</property>
<property name="distort">0</property>
<property name="fill">1</property>
</transition>
<transition in="0.0" out="492.0">
<property name="mlt_service">composite</property>
<property name="a_track">0</property>
<property name="b_track">6</property>
<property name="progressive">1</property>
<property name="geometry">0=0%,0%:100%x100%:100; -1=0%,0%:100%x100%:100; </property>
<property name="halign">centre</property>
<property name="valign">centre</property>
<property name="distort">0</property>
<property name="fill">1</property>
</transition>
<transition in="0.0" out="500.0">
<property name="mlt_service">composite</property>
<property name="a_track">0</property>
<property name="b_track">7</property>
<property name="progressive">1</property>
<property name="geometry">0=0%,0%:100%x100%:100; -1=0%,0%:100%x100%:100; </property>
<property name="halign">centre</property>
<property name="valign">centre</property>
<property name="distort">0</property>
<property name="fill">1</property>
</transition>
<transition in="0.0" out="494.0">
<property name="mlt_service">composite</property>
<property name="a_track">0</property>
<property name="b_track">8</property>
<property name="progressive">1</property>
<property name="geometry">0=0%,0%:100%x100%:100; -1=0%,0%:100%x100%:100; </property>
<property name="halign">centre</property>
<property name="valign">centre</property>
<property name="distort">0</property>
<property name="fill">1</property>
</transition>
<transition in="0.0" out="488.0">
<property name="mlt_service">composite</property>
<property name="a_track">0</property>
<property name="b_track">9</property>
<property name="progressive">1</property>
<property name="geometry">0=0%,0%:100%x100%:100; -1=0%,0%:100%x100%:100; </property>
<property name="halign">centre</property>
<property name="valign">centre</property>
<property name="distort">0</property>
<property name="fill">1</property>
</transition>
<transition in="0.0" out="500.0">
<property name="mlt_service">composite</property>
<property name="a_track">0</property>
<property name="b_track">10</property>
<property name="progressive">1</property>
<property name="geometry">0=0%,0%:100%x100%:100; -1=0%,0%:100%x100%:100; </property>
<property name="halign">centre</property>
<property name="valign">centre</property>
<property name="distort">0</property>
<property name="fill">1</property>
</transition>
<transition in="0.0" out="492.0">
<property name="mlt_service">composite</property>
<property name="a_track">0</property>
<property name="b_track">11</property>
<property name="progressive">1</property>
<property name="geometry">0=0%,0%:100%x100%:100; -1=0%,0%:100%x100%:100; </property>
<property name="halign">centre</property>
<property name="valign">centre</property>
<property name="distort">0</property>
<property name="fill">1</property>
</transition>
</tractor>
</mlt>
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