Capture And Output

Last reviewed: 2026-06-30

Capture System

Final video capture is implemented with AVPro Movie Capture, specifically CaptureFromScreen configured by PresentationController.

Setting	Current source
Capture component	Serialized screenCapture, GetComponent<CaptureFromScreen>(), or auto-added at runtime.
Output target	OutputTarget.VideoFile
Output folder	Serialized captureOutputFolder, default C:\Anuva\Capture
Filename	Remote outputPath override or generated from presentation metadata/timestamp.
Resolution	Serialized captureWidth / captureHeight
Frame rate	Serialized captureFrameRate
Realtime/offline	Serialized realtimeCapture; offline uses manual audio encoding path.
Audio	Unity audio capture for realtime; manual audio frame encoding for offline capture.

Remote Render Output

For Python-driven renders, render.start.payload.outputPath is used as the requested MP4 output path. Unity resolves output directory, prefix, and extension, starts capture, then reports the final path in render.completed.

AVPro completion callback is the authoritative point for render.completed, because file writing may continue after playback stops.

Local Output

For local playback, capture can still run when capturePresentation and local capture flags are enabled. The default folder is C:\Anuva\Capture.

Scene serialization differs:

Scene	Serialized capture notes
Anuva_DemoSet_Scene	captureWidth: 1280, captureHeight: 720, realtimeCapture: 0, Python communication disabled.
Anuva_TataMotors_Scene	captureWidth: 1920, captureHeight: 1080, realtimeCapture: 0, Python communication disabled, PresentationController GameObject inactive in inspected YAML.

Failure Cases

Failure	Unity behavior
Capture component unavailable	Logs warning and fails remote render with capture start error.
AVPro StartCapture() returns false	Logs warning; remote render fails with capture error.
Playback exception	Stops/cancels capture and emits remote failure if rendering remotely.
Cancel command	Cancels capture and emits render.failed with JOB_CANCELLED.
Missing output file after capture callback	File size becomes 0 if file does not exist when stats are read.

Handoff To Upload

Unity does not upload final MP4. It writes the file and emits render.completed. The Python Server owns validation, thumbnail generation, upload, and completion with the Web App.