<layers>
    <visual src="input1">
        <param name="translation_x" type="anim" ref="visual.width">
            <duration>1</duration>
            <style>linear</style>

            <keyframe at="0.0">-1.5</keyframe>
            <keyframe at="0.5">-0.05</keyframe>
            <keyframe at="1.0">0</keyframe>

        </param>
        <param name="translation_y">0</param>
        <param name="translation_z">0</param>
      </visual>
</layers>