Add metadata for Retiming, Reversed Clips & Hold Frames

[latenitefilms]

Sam Pluemacher writes:

Just a few additional requests from Knut if they are not already on your list - not sure what's the best way to display it:

• Reversed clips
• Hold Frame
• Retimes

[latenitefilms]

Example FCPXML:

<asset-clip ref="r2" offset="0s" name="Fast 200%" duration="5s" tcFormat="NDF">
    <timeMap>
        <timept time="0s" value="0s" interp="smooth2"/>
        <timept time="5s" value="10s" interp="smooth2"/>
    </timeMap>
</asset-clip>
<asset-clip ref="r2" offset="5s" name="Slow 50%" duration="20s" tcFormat="NDF">
    <timeMap>
        <timept time="0s" value="0s" interp="smooth2"/>
        <timept time="20s" value="10s" interp="smooth2"/>
    </timeMap>
</asset-clip>
<asset-clip ref="r2" offset="25s" name="Ramp" duration="18600/2500s" tcFormat="NDF">
    <timeMap>
        <timept time="0s" value="0s" interp="smooth2"/>
        <timept time="8900/2500s" value="3559999999/1000000000s" interp="smooth2" inTime="890000000/1000000000s" outTime="975800000/1000000000s"/>
        <timept time="18658/2500s" value="10s" interp="smooth2"/>
    </timeMap>
</asset-clip>
<asset-clip ref="r2" offset="81100/2500s" name="Hold" duration="4100/2500s" tcFormat="NDF">
    <timeMap>
        <timept time="0s" value="0s" interp="smooth2"/>
        <timept time="2s" value="0s" interp="smooth2"/>
        <timept time="12s" value="10s" interp="smooth2"/>
    </timeMap>
</asset-clip>

[latenitefilms]

I'm sure there's bugs, but a first pass will be included in the next beta.