meta,
    tool = "ges-launch-$(gst_api_version)",
    handles-states=true,
    args = {
        --track-types, video,
        --videosink, "fakevideosink name=videosink sync=true",
        --video-caps, "video/x-raw,format=I420,width=320,height=240,framerate=10/1",
    }

remove-feature, name=queue

# Add two overlapping clips on different layers
add-clip, name=c0, asset-id="pattern=red", layer-priority=0, type=GESTestClip, start=0, duration=2.0
add-clip, name=c1, asset-id="pattern=blue", layer-priority=1, type=GESTestClip, start=0, duration=2.0

# Set initial properties for both clips
set-child-properties, element-name=c0, width=200, height=150, posx=0, posy=0, pattern=red
set-child-properties, element-name=c1, width=200, height=150, posx=120, posy=90, pattern=blue

play
crank-clock
wait, on-clock=true

# Now manually set zorder to reverse the stacking
# Make c0 appear on top by giving it a lower zorder value
set-child-properties, element-name=c0, zorder=1
set-child-properties, element-name=c1, zorder=2

# Verify the zorder values were set
check-child-properties, element-name=c0, zorder=1
check-child-properties, element-name=c1, zorder=2

# Test controllable aspect - set up keyframes for zorder
set-control-source, element-name=c0, property-name=zorder, binding-type=direct-absolute
set-control-source, element-name=c1, property-name=zorder, binding-type=direct-absolute

# At 1 second, swap the zorder values
add-keyframe, element-name=c0, timestamp=0.0, property-name=zorder, value=1
add-keyframe, element-name=c0, timestamp=1.0, property-name=zorder, value=2
add-keyframe, element-name=c1, timestamp=0.0, property-name=zorder, value=2
add-keyframe, element-name=c1, timestamp=1.0, property-name=zorder, value=1

crank-clock, repeat=8
wait, on-clock=true

# Should now be at 0.8 seconds
check-position, expected-position=0.8
check-properties,
    gessmartmixer0-compositor.sink_0::zorder=2,
    gessmartmixer0-compositor.sink_1::zorder=1

# Crank 3 more times to reach 1.1 seconds (past the 1.0s keyframe)
crank-clock, repeat=3
wait, on-clock=true

# Should now be at 1.1 seconds, verify the zorder values swapped after 1 second animation
check-properties,
    gessmartmixer0-compositor.sink_0::zorder=2,
    gessmartmixer0-compositor.sink_1::zorder=1

stop