The pre-roll drained only the video pipe (fc_pipe) while the audio FIFO kept buffering, so ffmpeg read ~PRE_ROLL_SECONDS of surplus pre-roll audio — making audio longer than video, which when synced compresses audio ~0.5% (pitch-up, measured: 2591573 audio samples vs 2579395 expected for the video duration). In standby the framecache slot is already warm (no unstable startup frames), so the drain is unnecessary; skipping it lets ffmpeg open video and audio together from the same instant. Cold on-demand spawns keep the brief drain. |
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|---|---|---|
| .. | ||
| capture | ||
| framecache | ||
| mam-api | ||
| node-agent | ||
| playout | ||
| premiere-plugin | ||
| premiere-plugin-uxp | ||
| web-ui | ||
| worker | ||