OpenStory

The Theatre tab is where you preview and share your final video. It displays the merged video that combines all your scene motion clips with the generated music track.

Video Player

When a merged video is available, it displays in a full video player sized to your sequence's aspect ratio. The player is centered in the viewport and constrained to fit the screen height.

A share button (top-right corner of the player) opens a dropdown with:

Copy video URL — Copies the direct video URL to your clipboard
Download video — Downloads the .mp4 file with a filename based on your sequence title (e.g., My_Sequence_openstory.mp4)

Video States

Completed

The full video player is shown with playback controls and the share menu.

Merging

A spinner with "Merging video segments..." text. The page polls every 2 seconds for status updates.

Failed

An error message is displayed with the failure reason and a Retry Merge button.

Pending

When no merged video exists yet:

"No merged video yet. The merged video will be generated automatically once all motion segments are complete."

A Generate Now button is available if you want to trigger the merge manually.

Aspect Ratio Sizing

The theatre player automatically sizes based on your sequence's aspect ratio:

Ratio	Behavior
16:9	Full width, standard widescreen
9:16	Narrow, tall — optimized for mobile preview
1:1	Square, centered

All ratios are constrained to calc(100dvh - 15rem) maximum height to fit within the viewport alongside the header and navigation tabs.