Hi everyone,
I am using MELT and I have need to have a audio track along with a video
track and
I have to mix audio of both the tracks.and control volume of each track.
here is what I am trying to do
<producer>
<property name="resource">apple.mp4</property>
*<filter>*
* <property name="gain">0.083</property>*
* <property name="mlt_service">volume</property>*
* </filter>*
* *</producer>
*Problem:* But I could not find any difference in the volume level
I am attaching my complete XML.
Can some one please help in this aspect.
Do I need to use some other filter?
Thanks in advance.
Regards,
Murthy.
<?xml version="1.0" ?>
<mlt>
<profile description="320p" display_aspect_den="9" display_aspect_num="16" frame_rate_den="1" frame_rate_num="24" height="360" progressive="1" sample_aspect_den="1" sample_aspect_num="1" width="640"/>
<tractor id="tractor0">
<multitrack>
<playlist id="Track 0">
<producer id="d13bab30-0a8d-11e2-bf52-0800271fc3d1" in="0.0" novdpau="1" out="4693.0">
<property name="resource">music.mp3</property>
</producer>
</playlist>
<playlist id="Track 1">
<producer id="1bae1c2a-0a7a-11e2-bf52-0800271fc3d1" in="0.0" novdpau="1" out="738.0">
<property name="resource">apple.mp4</property>
<filter>
<property name="gain">0.083</property>
<property name="mlt_service">volume</property>
</filter>
</producer>
</playlist>
</multitrack>
<transition>
<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>
</tractor>
</mlt>
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