Video to HDR

The HDR delivery profile of the output. hdr10 (default) returns an HEVC Main 10, BT.2020 + PQ .mp4; hlg returns an HEVC Main 10, BT.2020 + HLG .mp4; hdr_prores returns a BT.2020 + PQ ProRes .mov editorial mezzanine, whose tier is selectable with proresProfile; hdr_exr_sequence returns a .zip of half-float OpenEXR frames holding the HDR signal as linear BT.2020 display light, 1.0 = 100 nits, ready to composite; hdr_exr_acescg_sequence_1_3 returns a scene-referred ACEScg sequence with VFX frame naming (frame.0001.exr): the source plate brought into ACES through the inverse ACES 1.3 SDR (Rec.709) Output Transform, with the highlight detail Ruby recovers added on top — read it with the stock ACES - ACEScg input transform; the ACES SDR view reproduces your source, and the ACES HDR views render the same scene with the recovered highlights (this is a scene, not the hdr10 display grade, so an ACES HDR view is not expected to match hdr10). An EXR zip is the whole delivery — the frames, a colorimetry.json sidecar, a provenance.json sidecar declaring the upconvert, and the source audio as audio.wav when the source has any. A source with an alpha channel (ProRes 4444, WebM with alpha, RGBA codecs) keeps it where the container can carry one: the EXR profiles write it as the A channel and hdr_prores delivers a 4444 with an alpha plane; the alpha is passed through as received (not premultiplied). hdr10 and hlg cannot carry alpha and deliver the picture without it. All five profiles bill at the same rate: 20 credits per second of output, rising to 40 credits per second when the source is larger than 4 megapixels — that includes anything larger than 1440p, up through 4K.

The ProRes tier of the hdr_prores mezzanine. Only valid when outputFormat is hdr_prores. Defaults to 422 HQ. A source with an alpha channel is always delivered as 4444, the only tier with an alpha plane, whatever tier is requested.

The ID of the task that was created. Use this to retrieve the task later.