Add .gitignore to exclude all node packages and lock files

2026-02-23 21:56:04 -05:00
parent faae96c9ed
commit dcc5c6c044
9747 changed files with 1555105 additions and 2 deletions
@@ -0,0 +1,149 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.getDisplayAspectRatio = exports.applyAspectRatios = exports.applyTkhdBox = exports.getColrBox = exports.getSampleAspectRatio = exports.getHvccBox = exports.getPaspBox = exports.getAv1CBox = exports.getVpccBox = exports.getAvccBox = exports.getStsdVideoConfig = void 0;
+const traversal_1 = require("./containers/iso-base-media/traversal");
+const getStsdVideoConfig = (trakBox) => {
+    const stsdBox = (0, traversal_1.getStsdBox)(trakBox);
+    if (!stsdBox) {
+        return null;
+    }
+    const videoConfig = stsdBox.samples.find((s) => s.type === 'video');
+    if (!videoConfig || videoConfig.type !== 'video') {
+        return null;
+    }
+    return videoConfig;
+};
+exports.getStsdVideoConfig = getStsdVideoConfig;
+const getAvccBox = (trakBox) => {
+    const videoConfig = (0, exports.getStsdVideoConfig)(trakBox);
+    if (!videoConfig) {
+        return null;
+    }
+    const avccBox = videoConfig.descriptors.find((c) => c.type === 'avcc-box');
+    if (!avccBox || avccBox.type !== 'avcc-box') {
+        return null;
+    }
+    return avccBox;
+};
+exports.getAvccBox = getAvccBox;
+const getVpccBox = (trakBox) => {
+    const videoConfig = (0, exports.getStsdVideoConfig)(trakBox);
+    if (!videoConfig) {
+        return null;
+    }
+    const vpccBox = videoConfig.descriptors.find((c) => c.type === 'vpcc-box');
+    if (!vpccBox || vpccBox.type !== 'vpcc-box') {
+        return null;
+    }
+    return vpccBox;
+};
+exports.getVpccBox = getVpccBox;
+const getAv1CBox = (trakBox) => {
+    const videoConfig = (0, exports.getStsdVideoConfig)(trakBox);
+    if (!videoConfig) {
+        return null;
+    }
+    const av1cBox = videoConfig.descriptors.find((c) => c.type === 'av1C-box');
+    if (!av1cBox || av1cBox.type !== 'av1C-box') {
+        return null;
+    }
+    return av1cBox;
+};
+exports.getAv1CBox = getAv1CBox;
+const getPaspBox = (trakBox) => {
+    const videoConfig = (0, exports.getStsdVideoConfig)(trakBox);
+    if (!videoConfig) {
+        return null;
+    }
+    const paspBox = videoConfig.descriptors.find((c) => c.type === 'pasp-box');
+    if (!paspBox || paspBox.type !== 'pasp-box') {
+        return null;
+    }
+    return paspBox;
+};
+exports.getPaspBox = getPaspBox;
+const getHvccBox = (trakBox) => {
+    const videoConfig = (0, exports.getStsdVideoConfig)(trakBox);
+    if (!videoConfig) {
+        return null;
+    }
+    const hvccBox = videoConfig.descriptors.find((c) => c.type === 'hvcc-box');
+    if (!hvccBox || hvccBox.type !== 'hvcc-box') {
+        return null;
+    }
+    return hvccBox;
+};
+exports.getHvccBox = getHvccBox;
+const getSampleAspectRatio = (trakBox) => {
+    const paspBox = (0, exports.getPaspBox)(trakBox);
+    if (!paspBox) {
+        return {
+            numerator: 1,
+            denominator: 1,
+        };
+    }
+    return {
+        numerator: paspBox.hSpacing,
+        denominator: paspBox.vSpacing,
+    };
+};
+exports.getSampleAspectRatio = getSampleAspectRatio;
+const getColrBox = (videoSample) => {
+    const colrBox = videoSample.descriptors.find((c) => c.type === 'colr-box');
+    if (!colrBox || colrBox.type !== 'colr-box') {
+        return null;
+    }
+    return colrBox;
+};
+exports.getColrBox = getColrBox;
+const applyTkhdBox = (aspectRatioApplied, tkhdBox) => {
+    if (tkhdBox === null || tkhdBox.rotation === 0) {
+        return {
+            displayAspectWidth: aspectRatioApplied.width,
+            displayAspectHeight: aspectRatioApplied.height,
+            width: aspectRatioApplied.width,
+            height: aspectRatioApplied.height,
+            rotation: 0,
+        };
+    }
+    return {
+        width: tkhdBox.width,
+        height: tkhdBox.height,
+        rotation: tkhdBox.rotation,
+        displayAspectWidth: aspectRatioApplied.width,
+        displayAspectHeight: aspectRatioApplied.height,
+    };
+};
+exports.applyTkhdBox = applyTkhdBox;
+const applyAspectRatios = ({ dimensions, sampleAspectRatio, displayAspectRatio, }) => {
+    if (displayAspectRatio.numerator === 0) {
+        return dimensions;
+    }
+    if (displayAspectRatio.denominator === 0) {
+        return dimensions;
+    }
+    const newWidth = Math.round((dimensions.width * sampleAspectRatio.numerator) /
+        sampleAspectRatio.denominator);
+    const newHeight = Math.floor(newWidth / (displayAspectRatio.numerator / displayAspectRatio.denominator));
+    return {
+        width: Math.floor(newWidth),
+        height: newHeight,
+    };
+};
+exports.applyAspectRatios = applyAspectRatios;
+function gcd(a, b) {
+    return b === 0 ? a : gcd(b, a % b);
+}
+function reduceFraction(numerator, denominator) {
+    const greatestCommonDivisor = gcd(Math.abs(numerator), Math.abs(denominator));
+    return {
+        numerator: numerator / greatestCommonDivisor,
+        denominator: denominator / greatestCommonDivisor,
+    };
+}
+const getDisplayAspectRatio = ({ sampleAspectRatio, nativeDimensions, }) => {
+    const num = Math.round(nativeDimensions.width * sampleAspectRatio.numerator);
+    const den = Math.round(nativeDimensions.height * sampleAspectRatio.denominator);
+    return reduceFraction(num, den);
+};
+exports.getDisplayAspectRatio = getDisplayAspectRatio;