ferdi2goandClaude Opus 5.5
72e4b8ab7a
Intro, Outro, Backing Track und Voice-overs pro Clip laufen über denselben Upload in Stücken wie die Clips. Die Schnitt-Einstellungen werden feldweise geprüft; ffprobe akzeptiert jetzt auch reine Tonspuren. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
50 lines
1.8 KiB
JavaScript
50 lines
1.8 KiB
JavaScript
import { execFile } from 'node:child_process';
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import { promisify } from 'node:util';
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const execFileAsync = promisify(execFile);
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function parseRate(rate) {
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const [numerator, denominator] = String(rate || '0/1').split('/').map(Number);
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return denominator ? numerator / denominator : 0;
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}
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// Handyvideos liegen oft quer im Container und tragen die Drehung als Metadatum.
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function readRotation(stream) {
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const side = stream.side_data_list?.find((entry) => entry.rotation !== undefined);
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if (side) return Number(side.rotation);
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if (stream.tags?.rotate) return Number(stream.tags.rotate);
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return 0;
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}
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// Liefert die Eckdaten einer Video- oder Audiodatei; Breite und Höhe so,
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// wie das Video angezeigt wird.
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export async function probe(file) {
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const { stdout } = await execFileAsync(
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'ffprobe',
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['-v', 'error', '-print_format', 'json', '-show_streams', '-show_format', file],
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{ maxBuffer: 10 * 1024 * 1024 },
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);
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const info = JSON.parse(stdout);
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const video = info.streams.find(
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(stream) => stream.codec_type === 'video' && !stream.disposition?.attached_pic,
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);
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const hasAudio = info.streams.some((stream) => stream.codec_type === 'audio');
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if (!video && !hasAudio) throw new Error('Weder Bild noch Ton gefunden.');
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const duration = Number(info.format?.duration ?? video?.duration ?? 0);
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if (!video) {
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return { duration, hasVideo: false, width: null, height: null, rotation: 0, fps: 0, hasAudio };
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}
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const rotation = readRotation(video);
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const sideways = Math.abs(rotation) % 180 === 90;
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return {
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duration,
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hasVideo: true,
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width: sideways ? video.height : video.width,
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height: sideways ? video.width : video.height,
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rotation,
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fps: Math.round(parseRate(video.avg_frame_rate || video.r_frame_rate) * 100) / 100,
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hasAudio,
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};
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}
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