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remotion/node_modules/@remotion/media-utils/dist/visualize-audio-waveform.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.visualizeAudioWaveform = void 0;
+const get_waveform_portion_1 = require("./get-waveform-portion");
+const cache = {};
+const visualizeAudioWaveformFrame = ({ audioData, frame, fps, numberOfSamples, windowInSeconds, channel, dataOffsetInSeconds, normalize = false, }) => {
+    if (windowInSeconds * audioData.sampleRate < numberOfSamples) {
+        throw new TypeError(windowInSeconds +
+            's audiodata does not have ' +
+            numberOfSamples +
+            ' bars. Increase windowInSeconds or decrease numberOfSamples');
+    }
+    const cacheKey = audioData.resultId +
+        frame +
+        fps +
+        numberOfSamples +
+        'waveform' +
+        dataOffsetInSeconds;
+    if (cache[cacheKey]) {
+        return cache[cacheKey];
+    }
+    const time = frame / fps;
+    const startTimeInSeconds = time - windowInSeconds / 2;
+    return (0, get_waveform_portion_1.getWaveformPortion)({
+        audioData,
+        startTimeInSeconds,
+        durationInSeconds: windowInSeconds,
+        numberOfSamples,
+        outputRange: 'minus-one-to-one',
+        channel,
+        dataOffsetInSeconds,
+        normalize,
+    });
+};
+const visualizeAudioWaveform = (parameters) => {
+    const data = visualizeAudioWaveformFrame(parameters);
+    return data.map((value) => value.amplitude);
+};
+exports.visualizeAudioWaveform = visualizeAudioWaveform;