Media Player Controls
The media player controls determine how a layer responds to timecode as well, that behavior is noted below.
In Frame Plays the first frame of the clip only. Use this play-mode to pre-load a clip before it is required.
Timecode: With Timecode, the clip will remain on the In-Frame.
Play Forward Plays from In to Out-Point and stops at the Out-Point.
Timecode: The clip will play to timecode. If Timecode exceeds the Out-Point the clip will hold on the out-frame.
Play Forward Loop Plays the clip forward and loops when it hits the out-frame.
Timecode: The clip will play to timecode and play to multiples of the clip length if Timecode exceeds the Out-point. For example, on a 5 minute clip a timecode value of 9 minutes will place the play-head at 4 minutes.
Pause: Stops playback at the current position.
| Note: Pause can be triggered automatically when Pause on Dark is enabled which can clash with DMX. It is therefore advisable to either not use Pause from DMX (and use speed set to 0 instead) or set it to update only in the personality. Update only is the default setting in factory personalities. |
Timecode: When paused the clip will hold at the play-head position. When un-paused it will jump to the current timecode value.
Play Backward Plays the clip from the Out-Point to the In-Point stopping at the In-Point
Timecode: Plays in time with timecode from the Out-Point to the In-Point.
Play Backward Loop Plays the clip from the Out-Point to the In-Point looping back to the Out-Point.
Timecode: Plays in time with timecode from the Out-Point to the In-Point looping at the In-Point.
Ping Pong Plays forwards to the Out-Point then backwards to the In-Point and repeats.
Timecode: Plays in time with timecode bouncing at the In-Point and Out-Point.
Random Plays random frames from between the In-Point and Out-Point.
Timecode: Plays random frames while receiving time code.
Out Frame Plays the Out-Point frame and holds on that frame.
Timecode: With Timecode, the clip will remain on the Out-Frame.
Playback Position and In/Out-Point
Media plays between the In-Point to the Out-Point, which by default are the first and last frames of the clip.
The current Playback Position is called the Playhead which is displayed as its time and the relative position within the clip.
The playback position can also show the time from the In-Point or the Out-Point (time remaining) by toggling the countdown button. 
End of Clip
Controlling the outpoint of a clip presents a problem especially from an external controller such as DMX. The most commonly used out-point is normally the last frame of the clip which can create undesired behaviour when switching between clips of different length.
Throughout Hippotizer, an architectural rule is observed stating simply “pins must not change other pins”. The reasoning for this rule is rooted in the fact that Hippotizer is often controlled from many sources at once and uses a last takes precedence application logic. That is, Hippotizer will do whatever it is told to do last. This system allows Hippotizer to be controlled by DMX (with update only enabled) and the UI for example at the same time with predicable results — whatever command was given last will take precedence. (Many UI functions sit outside this rule, for example layer reset is a UI function that will change many pins, though there is no pin to reset a layer as that would be a pin changing other pins). Changing clips on the media player is a function where expected behaviour may entail pins changing pins — specifically with regard to the in and out points.
Take an example; moving from a short clip to a longer one. Consider a 10 second clip with the outpoint set to the final frame (10 seconds). After which a longer clip (20 seconds) is selected. By the rule of pins not affecting pins, the outpoint of the new clip should be 10 seconds. (the length of the previous clip). If controlled from DMX, then the 2nd clip will show an outpoint of 10 seconds as DMX will not ‘know’ to change the outpoint with the clip change.
To help clarify this, we have introduced the concept of End of Clip that sets the out-point the maximum value (596 hours) ensuring the clip will always play to its final frame.
To set the out-point to End of Clip drag the out-frame on the play bar to the maximum. (Far right).
| Note: Controllers such as DMX, Midi or TImeline do not have the concept of End of Clip. Ensure the out-point is set correctly with each clip change or set the outpoint to the channel maximum. |
Frames or Time
The playback position, In-Point and Out-Point can be seen in time or media frames. This is changed by right-clicking on the time box label and selecting ‘show frames’.
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