Function readKeyframes

web/lite/src/codec/attribute-helper.ts:165–189

(
  byteArray: ByteArray,
  config: BaseAttribute,
  flag: AttributeFlag,
)

};

export const readKeyframes = <T>(
  byteArray: ByteArray,
  config: BaseAttribute,
  flag: AttributeFlag,
): Array<Keyframe<T>> => {
  const keyframes: Array<any> = [];
  const numFrames: number = byteArray.readEncodedUint32();
  for (let i = 0; i < numFrames; i++) {
    let keyframe: Keyframe<T>;
    if (config.attributeType === AttributeType.DiscreteProperty) {
      keyframe = new Keyframe<T>();
    } else {
      const interpolationType = byteArray.readUBits(2) as KeyframeInterpolationType;
      if (interpolationType === KeyframeInterpolationType.Hold) {
        keyframe = new Keyframe<T>();
      } else {
        keyframe = config.newKeyframe(flag);
        keyframe.interpolationType = interpolationType;
      }
    }
    keyframes.push(keyframe);
  }

  return keyframes;
};

const readTimeAndValue = <T>(byteArray: ByteArray, keyframes: Array<Keyframe<T>>, config: BaseAttribute) => {
  const numFrames: number = keyframes.length;