AEM Assets自訂視訊縮圖可讓作者從一組產生的縮圖中選擇適當的縮圖。 您可輕鬆自訂為視訊產生的縮圖數。
您應在Dynamic MediaAEM](https://docs.adobe.com/docs/en/aem/6-3/administer/content/dynamic-media/config-dynamic.html)模式下運行[實例
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