Export Profiles quick reference

ID	Kind	MIME	Extension	Video	Audio
webm-vp9-opus	muxed A/V	video/webm	.webm	VP9	Opus
mp4-h264-aac	muxed A/V	video/mp4	.mp4	negotiated AVC	AAC-LC
mp4-av1-aac	muxed A/V	video/mp4	.mp4	AV1	AAC-LC
mp4-hevc-aac	muxed A/V	video/mp4	.mp4	HEVC	AAC-LC
still-png	still	image/png	.png	—	—
still-jpeg	still	image/jpeg	.jpg	—	—
still-webp	still	image/webp	.webp	—	—
animated-gif	animated image	image/gif	.gif	—	—
audio-wav	audio	audio/wav	.wav	—	PCM

All local profiles accept a sink, optional AbortSignal, optional cleanupSink, and progress callback. MP4/WebM add video/audio bitrate; WAV adds sampleFormat: 's16' | 'f32'; still images add timeUs and optional quality; GIF adds optional loopCount.

Session supplies duration, dimensions, rational frame rate, sample rate, channels, color, and frozen IR from the Project.

Results contain MIME, frame/sample counts, duration, actual encoder configuration where relevant, written bytes, and format-specific metadata. File bytes remain in the sink.

probeExportProfiles() checks generic requested configurations. session.export.preflightProfile() also checks the loaded Project, channel/color/Material constraints, sink, and runtime AAC canary. AV1/HEVC appearing in this table does not imply device support.

exportResumableMuxed() implements checkpointed committed units for muxed profiles. Normal Session jobs are one-shot unless the application explicitly uses that API.