Function getHdrEncoderColorParams

packages/engine/src/utils/hdr.ts:94–109

(
  transfer: HdrTransfer,
  mastering: HdrMasteringMetadata = DEFAULT_HDR10_MASTERING,
)

 * stream is rejected as SDR by most HDR-aware players and CDNs.
 */
export function getHdrEncoderColorParams(
  transfer: HdrTransfer,
  mastering: HdrMasteringMetadata = DEFAULT_HDR10_MASTERING,
): HdrEncoderColorParams {
  const colorTrc = transfer === "pq" ? "smpte2084" : "arib-std-b67";
  const tagging = `colorprim=bt2020:transfer=${colorTrc}:colormatrix=bt2020nc`;
  const metadata = `master-display=${mastering.masterDisplay}:max-cll=${mastering.maxCll}`;
  return {
    colorPrimaries: "bt2020",
    colorTrc,
    colorspace: "bt2020nc",
    pixelFormat: "yuv420p10le",
    x265ColorParams: `${tagging}:${metadata}`,
    mastering,
  };
}

export interface CompositionHdrInfo {
  hasHdr: boolean;