Method detectFileType

packages/2d/src/lib/components/Video.ts:331–396

()

  }

  private detectFileType() {
    return DependencyContext.collectPromise(
      (async () => {
        const src = this.src();
        const extension = src.split('?')[0].split('.').pop()?.toLowerCase();

        if (
          extension === 'mp4' ||
          extension === 'webm' ||
          extension === 'mov'
        ) {
          this.detectedFileType = extension;
          this.fileTypeWasDetected = true;
          return;
        }

        if (extension === 'm3u8') {
          this.detectedFileType = 'hls';
          this.fileTypeWasDetected = true;
          return;
        }

        if (!src.startsWith('http://') && !src.startsWith('https://')) {
          this.handleUnknownFileType(src);
          return;
        }

        const response = await fetch(src, {method: 'HEAD'});
        const contentType = response.headers.get('Content-Type');

        if (!contentType) {
          this.handleUnknownFileType(src);
          return;
        }

        if (contentType.includes('video/mp4')) {
          this.detectedFileType = 'mp4';
          this.fileTypeWasDetected = true;
          return;
        }

        if (contentType.includes('video/webm')) {
          this.detectedFileType = 'webm';
          this.fileTypeWasDetected = true;
          return;
        }

        if (contentType.includes('video/quicktime')) {
          this.detectedFileType = 'mov';
          this.fileTypeWasDetected = true;
          return;
        }

        if (
          contentType.includes('application/vnd.apple.mpegurl') ||
          contentType.includes('application/x-mpegURL')
        ) {
          this.detectedFileType = 'hls';