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Merge pull request #13337 from Snuffleupagus/PredictorStream-super

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[Regression] Move the `super`-call in the `PredictorStream`-constructor to prevent errors (PR 13303)
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calixteman 2021-05-05 13:58:21 +02:00 committed by GitHub
commit 52961197d3
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1 changed files with 3 additions and 3 deletions
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6
src/core/predictor_stream.js
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@ -19,10 +19,12 @@ import { isDict } from "./primitives.js";
class PredictorStream extends DecodeStream { class PredictorStream extends DecodeStream {
constructor(str, maybeLength, params) { constructor(str, maybeLength, params) {
super(maybeLength);
if (!isDict(params)) { if (!isDict(params)) {
return str; // no prediction return str; // no prediction
} }
const predictor = params.get("Predictor") || 1; const predictor = (this.predictor = params.get("Predictor") || 1);
if (predictor <= 1) { if (predictor <= 1) {
return str; // no prediction return str; // no prediction
@ -30,8 +32,6 @@ class PredictorStream extends DecodeStream {
if (predictor !== 2 && (predictor < 10 || predictor > 15)) { if (predictor !== 2 && (predictor < 10 || predictor > 15)) {
throw new FormatError(`Unsupported predictor: ${predictor}`); throw new FormatError(`Unsupported predictor: ${predictor}`);
} }
super(maybeLength);
this.predictor = predictor;
if (predictor === 2) { if (predictor === 2) {
this.readBlock = this.readBlockTiff; this.readBlock = this.readBlockTiff;