init commit

remotion/node_modules/@remotion/studio/dist/helpers/extract-frames.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.extractFrames = extractFrames;
+const mediabunny_1 = require("mediabunny");
+async function extractFrames({ src, timestampsInSeconds, onVideoSample, signal, }) {
+    const input = new mediabunny_1.Input({
+        formats: mediabunny_1.ALL_FORMATS,
+        source: new mediabunny_1.UrlSource(src),
+    });
+    const dispose = () => {
+        input.dispose();
+    };
+    if (signal) {
+        signal.addEventListener('abort', dispose, { once: true });
+    }
+    try {
+        const [durationInSeconds, format, videoTrack] = await Promise.all([
+            input.computeDuration(),
+            input.getFormat(),
+            input.getPrimaryVideoTrack(),
+        ]);
+        if (!videoTrack) {
+            throw new Error('No video track found in the input');
+        }
+        const timestamps = typeof timestampsInSeconds === 'function'
+            ? await timestampsInSeconds({
+                track: {
+                    width: videoTrack.displayWidth,
+                    height: videoTrack.displayHeight,
+                },
+                container: format.name,
+                durationInSeconds,
+            })
+            : timestampsInSeconds;
+        if (timestamps.length === 0) {
+            return;
+        }
+        const sink = new mediabunny_1.VideoSampleSink(videoTrack);
+        for await (const videoSample of sink.samplesAtTimestamps(timestamps)) {
+            if (signal === null || signal === void 0 ? void 0 : signal.aborted) {
+                videoSample === null || videoSample === void 0 ? void 0 : videoSample.close();
+                break;
+            }
+            if (!videoSample) {
+                continue;
+            }
+            onVideoSample(videoSample);
+        }
+    }
+    catch (error) {
+        if (error instanceof mediabunny_1.InputDisposedError) {
+            return;
+        }
+        throw error;
+    }
+    finally {
+        dispose();
+        if (signal) {
+            signal.removeEventListener('abort', dispose);
+        }
+    }
+}